REVIEW Research progress on chemical composition, pharmacological effects of Forsythia suspensa (Thunb.) Vahl and predictive analysis on Q-marker ...

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REVIEW Research progress on chemical composition, pharmacological effects of Forsythia suspensa (Thunb.) Vahl and predictive analysis on Q-marker ...
TMR Modern Herbal Medicine
                                                homepage: https://www.tmrjournals.com/mhm

REVIEW
Research progress on chemical composition, pharmacological effects of
Forsythia suspensa (Thunb.) Vahl and predictive analysis on Q-marker
     Hui Peng1,2#, Peng Lu1,2#, Yiting Liu1,2, Chuanxin Liu3, Yanquan Gao1,2, EbukaOlisaemeka Nwafor1,2,
                                         Yuelin Zhang1,2, Zhidong Liu1,2*

1
  Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese
Medicine, Tianjin, China;
2
  Engineering Research Center of Modern Chinese Medicine Discovery and Preparation Technique,
Ministry of Education, Tianjin, China;
3
  School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.

#
    These authors contributed equally to this work.

*Correspondence to: Zhidong Liu, Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin
University of Traditional Chinese Medicine, Tianjin 301617, China. Tel: +86-22-59596170; Email:
liuzhidong@tjutcm.edu.cn

Highlights
  The new quality evaluation system takes traditional Chinese medicine (TCM) quality markers as its core
  concept, and lays foundation for the future analysis of the quality markers of Lianqiao (Forsythia suspensa
  (Thunb.) Vahl, Abbreviated as “F. suspensa” below), in order to establish a F. suspensa quality control and
  quality traceability system.

Traditionality
  F. suspensa is a common medicinal plant in China, and it grows in hillside shrubs, underwoods, grasses, or in
  valleys. It can effectively improve immune functions, and have obvious curative effects in protecting nerves,
  anti-inflammatory, anti-virus, delaying aging, and reduce tumorigenesis.

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REVIEW Research progress on chemical composition, pharmacological effects of Forsythia suspensa (Thunb.) Vahl and predictive analysis on Q-marker ...
REVIEW                                                                      doi: 10.12032/TMRmhm202003069
  Abstract
   Lianqiao (Forsythia suspensa (Thunb.) Vahl, Abbreviated as “F. suspensa” below) is traditional
   Chinese medicine in China, widely distributed all over the country and also highly rich in
   resources. The Northwest Territories is a genuine producing area. There are many chemical
   components in F. suspensa, including lignans, phenylethanolic glycosides, flavonoids, C6-C2
   natural alcohols and their glycosides, phenolic acids, terpenes and volatile oils. Among them,
   lignans and phenylethanolic glycosides are the main active components. Based on the review of
   chemical components or constituents and main pharmacological activities, according to the
   definition of quality marker, the components of quality marker of F. suspensa were predicted
   and analyzed from the aspects of plant genetics and chemical composition, traditional efficacy,
   traditional medicine, new efficacy, blood entering composition, measurable composition,
   effective composition in different compatibility, and the influence of storage conditions of
   extract. Further research on its medicinal active ingredients will provide scientific basis for the
   evaluation of F. suspensa quality.

   Keywords: F. suspensa, Phenylethanol glycosides, Lignans, Quality control, Q-marker

Abbreviations: Q-marker, Quality marker; F. suspensa, Forsythia suspensa (Thunb.) Vahl; TCM, traditional
Chinese medicine; MIC, minimum inhibitory concentration; cAMP, Cyclic adenosine monophosphate; RT-PCR,
Reverse Transcription-Polymerase Chain Reaction; LPS, Lipopolysaccharide; TARC, Thymus activation
regulating chemokine; MDC, Macrophage-derived chemokine; MAPK, Mitogen-activated protein kinase; IC50,
half maximal inhibitory concentration; iNOS, inducible nitric oxide synthetase; PGE2, prostaglandin E2; HO-1,
heme oxygenase 1; TNF- α , tumor necrosis factor- α ; IL-6, interleukin-6; MCP-1, monocyte chemoattractant
protein-1; IL-1 β , interleukin-1 β ; E. coli, Escherichia coli; MDA, malondialdehyde; GalN, D-galactosamine;
DPPH, 1,1-diphenyl-2-picrylhydrazyl; ABTS, 2, 2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid); EAF, the
ethyl acetate extract of F. suspensa; MyD88, Myeloid differentiation primary response gene 88; TLR-4, toll like
receptor-4; NE, norepinephrine.
Competing interests: The authors declare that there is no conflict of interests regarding the publication of this
paper.
Citation: Peng H, Lu P, Liu YT, et al. Research progress on chemical composition, pharmacological effects of
Forsythia suspensa (Thunb.) Vahl and predictive analysis on Q-marker. TMR Modern Herbal Medicine 2020,
3(2):86-112.
Executive Editor: Chaoyong Wu
Submitted: 16 February 2020, Accepted: 28 February 2020, Online: 6 March 2020.
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REVIEW Research progress on chemical composition, pharmacological effects of Forsythia suspensa (Thunb.) Vahl and predictive analysis on Q-marker ...
doi:10.12032/TMRmhm202003069                                                                     REVIEW
                                                                Phenylethanoid glycosides
Background                                                      Phenylethanoside is a kind of phenolic glycoside
                                                                compound [11], which is composed of phenylethanol
Lianqiao (Forsythia suspensa (Thunb.) Vahl,                     and sugar. The content of this component is high in F.
Abbreviated as “F. suspensa” below) is one of the               suspensa, and it is one of the important Q-marker in F.
traditional Chinese medicines (TCMs) in China, a                suspensa.     It    mainly     includes     forsythiaside
plant of the genus Forsythia and its fruits widely used,        (forsythoside A) [12], forsythoside B [13],
well known in TCM as “Forsythiae Fructus”. Its fruit            forsythoside D [14], forsythoside E [12, 15],
signifies TCM, and its shell as the medicinal part              forsythoside     M     [16],    isoforsythiaside    [17],
specified in the Pharmacopoeia [1]. F. suspensa was             forsythiaside G [12], forsythiaside I [14], forsythiaside
first recorded in Shengnong Bencao Jing [2], a classic          J [12], lianqiaoxinside B [18], calceolarioside C [19],
work of TCM in the Qin and Han Dynasties                        forsythenside     K      [20],    plantainoside     [21],
(100BC-200AD). In 2015 edition of the Chinese                   calceolarioside A [22], calceolarioside B [12], etc. The
Pharmacopoeia, F. suspensa has the functions of                 specific compound names were shown in
clearing heat and detoxification, reducing swelling,            Supplemental data and the chemical structures of
dispersing and evacuating wind and heat [1] (also               phenylethanolic glycosides 1-30 were shown in Figure
known as fever and common cold). It has also been               1.
used as an effective remedy for the treatment of ulcer,
gonorrhea, flu, erysipelas and nephritis for thousands          Lignans
of years. Modern pharmacology [3, 4] showed that F.             Lignans are a class of natural compounds polymerized
suspensa had potential medicinal value in protecting            by two molecules of phenylpropanoid derivatives,
nerves [5], protecting liver and choleretic, regulating         most of which are in free state, and a few of which are
immunity, antioxidant effects [6], diuretic and                 in the wood and resin of plants due to the synthesis of
anti-hypertensive, anti-aging, anti-tumor, anti-viral [7],      glycosides with sugar. There are three types of
anti-bacterial, anti-inflammatory [8], etc.                     monomers that make up lignans: 1. Cinnamolic acid
   The quality of TCM includes little or no adverse             or cinnamaldehyde, 2. Cinyl alcohol, 3. Allylbenzene.
effect or reactions, safe and guaranteed efficacy or            Lignans are an important active component of F.
effectiveness in modern clinical applications. In this          suspensa, mainly including (+)-lariciresinol[28],
paper, the resources, chemical components and main              isolariciresinol[29],               (+)-phillygenin[27],
pharmacological activities of F. suspensa were                  (+)-phillyrin[27], (-)-arctiin[30], (-)-arctigenin[30],
reviewed. On this basis, the quality standards and              (-)-matairesinol[31],           (-)-matairesinoside[31],
quality markers (Q-marker) of F. suspensa were                  (+)-pinoresinol[32], (+)-epipinoresinol [30, 33],
studied potentially, providing a scientific basis for the       (+)-pinoresinol-4-O-β-D-glucoside[34],
establishment of quantitative standards of material             (-)-dimethylmatairesinol[31], etc. The specific
components.                                                     compound names were shown in Supplemental data
                                                                and the chemical structures of lignans 31-75 were
Resource distribution                                           shown in Figure 2 and Figure 3.

In China, F. suspensa is mainly produced in Hebei,              C6-C2 natural alcohols and their glycosides
Shanxi, Shaanxi, Shandong, Western Anhui, Henan,                Currently, the separation products of C6-C2 natural
Hubei, Sichuan and other provinces (regions). In                alcohol and its glycosides are isorengyol [40], rengyol
addition, it also grows in Korea, Japan and Europe [9].         [47], rengyolone [47], rengyoxide [47], rengyoside A
                                                                [48], rengyoside B [48], rengyoside C [48], suspenol
Chemical composition                                            [49], rengynic acid [52], forsythenside A [54],
                                                                forsythenside B [54], etc. The specific compound
More than 200 compounds have been isolated and                  names were shown in Supplemental data and the
identified from F. suspensa [10]. Studies on the                chemical structures of C6-C2 natural alcohol and their
chemical constituents of F. suspensa. are mainly                glycosides 76-99 were shown in Figure 4 and Figure
focused on phenylethanolic glycosides and lignans,              5.
followed by C6-C2 natural alcohols and their
glycosides, terpenes, volatile oils, flavonoids, phenolic       Flavonoids
acids, sterols and alkaloids. Among them,                       There are more than 20 flavonoids in F. suspensa,
phenylethanol glycosides and lignans, the main                  mainly including quercetin [25, 57], isoquercetin [30],
medicinal ingredients, have the highest content.                astragalin [30], rutin [57], wogonin-7-O-β-D-
                                                                glucuronide [30], cymaroside [43], luteolin [43],

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REVIEW Research progress on chemical composition, pharmacological effects of Forsythia suspensa (Thunb.) Vahl and predictive analysis on Q-marker ...
REVIEW                                                                            doi: 10.12032/TMRmhm202003069
kaempferol [24], isorhamnetin [57], hesperidin [59],          drug, which can inhibit many kinds of bacteria. It is
isorhamnetin-3-O-α-L-ranorhamnoside-(1→2)-β-D-                mainly used in the treatment of upper respiratory tract
glucopyranoside [43], potengriffioside A [43],                infection and acute nephritis [78]. The results [38]
hyperoside [59], etc. The specific compound names             showed that caffeoyl phenylethanoid glycosides,
were shown in Supplemental data and the chemical              forsythiaside and isoforsythiaside were the main
structures of flavonoids 100-120 were shown in                antibacterial components of F. suspensa. In addition,
Figure 6 and Figure 7.                                        the volatile oil in F. suspensa had a good antibacterial
                                                              effect on Staphylococcus aureus, Bacillus subtilis,
Phenolic acids                                                Pseudomonas         aeruginosa,    Candida      albicans,
So far, the phenolic acids isolated from F. suspensa          Aspergillus niger and other sensitive microorganisms
mainly include caffeic acid [63], ferulic acid [25],          in vitro [70]. Shuanghuanglian Oral Liquid is a
p-hydroxyphenylacetic acid [25], palmitic acid [64,           proprietary Chinese medicine, which consists of
65], vanillic acid [63], succinic acid [63], etc. The         Rendongteng        (Lonicera    japonica),     Huangqin
specific compound names were shown in                         (Scutellaria baicalensis Georgi), and F. suspensa, and
Supplemental data and the chemical structures of              it is mainly used to treat colds and fevers, coughs and
phenolic acids 121-162 were shown in Figure 8 and             sore throats. The study of Bai YE [79] showed that
Figure 9.                                                     compared with Shuanghuanglian Oral Liquid, water
                                                              extract of F. suspensa was more sensitive to
Terpenoids and Volatile oils                                  Staphylococcus aureus and Streptococcus pneumoniae,
The volatile oils in F. suspensa are monoterpenes,            but it is not sensitive to Escherichia coli (E. coli) and
monoterpenols, sesquiterpenes, triterpenes, and               Candida albicans. Han X and others [80]tested the
cycloterpenoids. Among them, α-pinene [70],                   antibacterial activity of 80% methanol extract of F.
β-pinene [70], α-phellandrene [70], camphene [70],            suspensa on E. coli K88 (MIC=25.00mg/ml),
limonene [70], sabinene [70], p-cymene [70], linalool         Staphylococcus aureus (MIC=12.50mg/ml) and
[70], terpinen-4-ol [70], (+)-carene[71], oleanolic acid      Salmonella (MIC=1.56mg/ml) in vitro by a
[72], ursolic acid [27, 73], 2,3-hydroxyursolic acid[74,      well-diffusion assay procedure and a 2-fold dilution
75], etc. The specific compound names were shown in           method. And in-vivo tests on 252 broilers for 42 days
Supplemental data and the chemical structures of              showed that the extract (100 mg/kg) could reduce the
terpenoids and volatile oils 163-217 were shown in            level of E. coli and was a potential antibacterial agent.
Figure 10, Figure 11 and Figure 12.                           Some researchers have pointed out that forsythiaside
                                                              [81] could significantly reduce the mortality of model
Other compounds
                                                              animals infected with Staphylococcus aureus,
Other compounds were isolated and identified as well.
                                                              Pseudomonas aeruginosa, and E. coli through
Mainly including sterols and alkaloids such as
                                                              experiments. Meanwhile, the body temperature of the
suspensine A [76], (–)-7ʹ-O-methylegenine [76],
                                                              rabbit model of fever caused by endotoxin and the rat
(–)-egenine [76], (–)-bicuculline [76], taraxasterol
                                                              model of yeast fever were significantly reduced.
[25], β-sitosterol [56], etc. The specific compound
                                                              Therefore, it can be confirmed that forsythiaside has
names were shown in Supplemental data and the
                                                              antipyretic and anti-infective effects.
chemical structures of other compounds 218-225 were
shown in Figure 13.                                           Anti-inflammatory effects
                                                              The anti-inflammatory activity of F. suspensa ranks
Pharmaceutical effects                                        first among many TCMs, and it is the most effective
                                                              and promising anti-inflammatory drug for inhibiting
In recent years, there are more and more studies on the
                                                              inflammation [82]. The main anti-inflammatory
activity screening of some compounds in F. suspensa.
                                                              components of F. suspensa are phenylethanolic
Their pharmacological effects are also obvious, with
                                                              glycosides and lignans. Wang TT [83] have done the
antibacterial, anti-inflammatory, antiviral, anti-tumor,
                                                              related    in     vitro   bacteriostatic   test    and
liver protection, nerve protection, anti-allergic,
                                                              anti-inflammatory activity research, which showed
anti-oxidative effects and regulating body immunity,
                                                              that both forsythoside A and phillyrin have significant
etc.
                                                              bacteriostatic effect. Modern pharmacology showed
                                                              that the anti-inflammatory activity of F. suspensa
Antibacterial effects
Antibacterial activities of F. suspensa contribute to its     supported traditional effects of heat-clearing and
detoxification effects in terms of traditional efficacy. F.   detoxifying, reducing swelling, dispersing, and
suspensa is a kind of broad-spectrum antibacterial            evacuating wind and heat.
                                                                 The anti-inflammatory effect of F. suspensa has
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REVIEW Research progress on chemical composition, pharmacological effects of Forsythia suspensa (Thunb.) Vahl and predictive analysis on Q-marker ...
doi:10.12032/TMRmhm202003069                                                                    REVIEW
been proved to play a role in various disease models,           reduced. Forsythiaside A [96] could reduce the content
including edema [84], colitis [85] and peritonitis [86].        of influenza A virus M1 protein in model mice
Studies by Lee JJ and other studies [87] have shown             infected with influenza virus, prevent the generation
that water extract of F. suspensa (mainly including             and spread of new virions, and improve the survival
forsythiaside A, lariciresinol, arctigenin, etc.)               rate of mice infected with influenza virus in vivo.
activated Nrf2 (Nrf2, important transcription factors           More importantly, forsythiaside A [97] could control
that regulate cellular oxidative stress) and inhibited          influenza A virus infection by inhibiting influenza A
NF-κB activity (NF-κB, a transcription factor that              virus replication and improve the prognosis of
regulates the expression of key cytokine genes that             influenza A virus infection. Yang Y [98] evaluated the
promote inflammation) and induced A20 [88](A20, a               anti-swine influenza virus effect of F. suspensa.
negative regulator of NF-κB signaling pathway)                  Experiments have shown that it had antiviral effects,
expression to play an anti-inflammatory effect.                 mainly by resisting virus adsorption, interfering with
Ethanol extract of F. suspensa (such as phillyrin,              virus replication, and direct killing.
phillygenin, forsythoside A, pinoresinol, suspensaside,
caffeic acid, etc.) could reduce the production of              Anti-cancer effects
inducible     nitric   oxide      synthetase    (iNOS),         Anti-cancer activity of F. suspensa also supports its
prostaglandin E2 (PGE2) and cyclooxygenase-2 [89].              detoxification and antioxidant effects. F. suspensa has
It has been reported that the anti-inflammatory effect          multiple therapeutic effects [99] on lung cancer, colon
of forsythiaside A on BV-2 microglia (mouse                     cancer, liver cancer, leukemia, oral epidermoid cancer,
microglioma cells) and primary microglia in vitro was           gastric cancer, breast cancer, colorectal cancer,
studied at different concentrations. And the inhibitory         melanoma, esophageal cancer, lung adenocarcinoma,
effect [90] of was recognized to inhibit NF-κB                  melanoma, etc. Bao J et al [100] tested the
signaling pathway and higher levels of Nrf2 and heme            anti-proliferative effect of F. suspensa water extract on
oxygenase 1 (HO-1). From the number of neutrophils              mouse melanoma B16-F10 cells in vitro. In vivo
and the levels of tumor necrosis factor-α (TNF-α),              transplantation of B16-F10 melanoma in mice, the
interleukin-6 (IL-6) and monocyte chemoattractant               extract (10000 mg/kg) significantly inhibited tumor
protein-1 (MCP-1) in the peritoneal cavity, it was              growth, cell proliferation and angiogenesis. Its
confirmed that forsythiaside A [86] could significantly         anti-tumor effect was related to the anti-inflammatory
reduce peritonitis. In a mouse model of acute lung              and     anti-oxidation     properties    regulated     by
injury [91], phillyrin could inhibit the pathological           mitogen-activated protein kinase (MAPKs)/Nrf2/
changes of lung tissue, alveolar hemorrhage and                 HO-1.
neutrophil changes in mice. It protected lung injury by
inhibiting TNF-α, interleukin-1β (IL-1β), IL-6 and              Hepatoprotective effect
peroxidase.                                                     Pan CW [101] reported that forsythiaside A (15, 30,
   Lee S [92] has shown that arctiine could reduce the          60 mg/kg) at a certain concentration could be
production of NO and pro-inflammatory cytokines                 alleviated    inflammatory      response    and    had
such as IL-1β, IL-6, TNF-α, and PGE2, and reduce                hepatoprotective     effect    in    a    model     of
gene and protein levels detected by reverse                     lipopolysaccharide (LPS)/D-galactosamine (GalN)
transcription-polymerase chain reaction (RT-PCR) and            induced acute liver injury. It could reduce the
western blot. In addition, arctiin [93] could inhibit the       production of malondialdehyde (MDA) and the levels
expression of costimulatory molecules (such as B7-1,            of alanine aminotransferase in serum and aspartate
B7-2), and the NF-κB signaling pathway in                       aminotransferase. And it could also activate Nrf2 and
macrophages to achieve anti-inflammatory purposes.              inhibit the NF-κB signaling pathway. Similarly,
Arctiin has a good anti-inflammatory biological                 forsythiaside A, forsythiaside B, forsythiaside N, and
activity.                                                       forsythiaside O all showed survival rates with strong
                                                                liver cells.
Antiviral effects
Antiviral activities of F. suspensa also contribute to its      Antioxidant effect and regulating body immunity
detoxification effects [94]. Studies [95] have shown            Isoforsythiaside was isolated from F. suspensa by Qu
that in mice inoculated with H1N1 in vivo, the                  H [102] and its pharmacological test showed that
administration of phillyrin (20 mg/kg/day) for three            isoforsythiaside had high antioxidant and antibacterial
consecutive days significantly prolonged the average            activity. In vitro, isoforsythiaside and forsythiaside
survival time, and it was determined that the virus titer,      had a strong scavenging effect on DPPH free radicals.
IL-6 and influenza hemagglutinin production were                And the strong antioxidative effect of isoforsythiaside
significantly reduced, and lung tissue damage was               was related to the ortho substitution of the hydroxyl

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REVIEW                                                                      doi: 10.12032/TMRmhm202003069
group in the phenol structure. Forsythiaside B,           of IL-1β and tumor necrosis factor-α, thereby
forsythiaside H, and calceolarioside B [18] also          achieving a neuroprotective effect.
showed free radical scavenging activity in vitro. Lu T       By processing the mouse brain homogenate in the
[103] used DPPH and ABTS free radical scavenging          Wang’s model group [109], the levels of IL-1β, NO,
experiments to confirm the antioxidant capacity of        MDA and norepinephrine (NE) were significantly
80% ethanol extract of F. suspensa in vitro.              decreased, and the activities of total superoxide
   Phillygenin, 8-hydroxypinoresinol, forsythialan and    dismutase and glutathione peroxidase and the levels of
forsythialan B obviously protected the renal tubular      glutamate and acetylcholine were significantly
epithelial cells LLC-PK1 in vitro [104]. Forsythiaside    increased. Therefore, this study indicated that
could enhance the expression of antioxidant enzymes       forsythiaside had a herapeutic effect on amnesia and
in H2O2-treated neurons cultured in vitro [105]. It has   neuroprotection.
been reported that phenolic constituents also had
strong antioxidant properties and were stronger than      Other pharmacological effects
ascorbic acid, such as methyl caffeate, rutin and         In addition to the above effects, F. suspensa could
quercetin [106].                                          also promote gastric emptying, lower blood lipids and
                                                          relax blood vessels. It was reported that phillyrin [112]
Anti-allergic effects                                     had vasodilating effect on vasoconstriction caused by
Sung YY [107] studied that forsythiaside, phillyrin,      NE. The mechanism was that it protected the aorta of
lariciresinol, and phillygenin can reduce the             isolated rats by limiting the inflow of calcium ions in
production of thymus activation regulating chemokine,     vitro. Hao FF [113] studied that compared with the
macrophage-derived chemokine and rantes. In a             blank group, the water extract of F. suspensa
mouse in vivo model, the ethanol extract of F.            administration group had no effect on gastric
suspensa could alleviate the symptoms of allergic         emptying and small intestinal advancing of mice
dermatitis induced by the crude extract of dust mites.    under normal physiological conditions. However, it
The methanol extract of F. suspensa could reduce the      had a good two-way regulation and improvement
allergic symptoms caused by β-companion soybean           effect on gastric emptying and small intestine models
globulin in weaned piglets. Hao Y [108] believed that     of mice under pathological conditions caused by
the mechanism may be related to inhibiting allergic       dopamine, adrenaline, atropine and neostigmine.
antibodies, hindering mast cell degranulation, T
lymphocyte proliferation, histamine production and        Predictive analysis of Q-marker
interleukin-4 synthesis.
                                                          The chemical composition types of F. suspensa in
Neuroprotective effects                                   different provinces, different places of origin, different
It was reported that forsythiaside and phillyrin [109]    growth years and different harvest periods are
were considered as promising drugs for the treatment      generally similar, but the contents are different.
of cognitive impairment and Parkinson's disease, and      Q-marker [114, 115] was a new concept put forward
were candidates for the treatment of amnesia. Zhang S     by academician Liu Changxiao [116, 117] (Researcher
[110] studied the inhibitory effect of 75% ethanol        of Tianjin Institute of Pharmaceutical Research,
extract of F. suspensa (mainly including forsythoside     academician of Chinese Academy of Engineering) in
A, suspensaside, rutin, etc.) on rotenone induced         2016, which closely linked the “effectiveness –
neurotoxicity in SD male rats. It could improve the       material basis – quality control landmark components”
behavior of rats, protect dopamine neurons from loss      of TCM. Q-marker systematically expounded the
and restore dopamine level. The results showed that       relationship between the quality and efficacy of TCM
its potential function is by relieving pro-inflammatory   with new perspectives, improved the quality standard
molecules of Parkinson's disease and regulating           of TCM in China, and improved the scientificity,
phosphatidylinositol 3-kinase, protein kinase B,          rationality and operability of the standard [118]. It
NF-κB and MAPK pathways.                                  referred to chemical substances that were inherent in
   Kim JM [111] found that phillygenin could shorten      TCM and TCM products (Chinese herbal extracts,
the escape latency, reduce the level of thiobarbituric    TCM decoction pieces, TCM preparations, etc.) were
acid reactive substances assay (TBARS) in rats and        formed during processing and were closely related to
protect the nerves in the scopolamine-induced mouse       the functional properties of TCM, as a reflection of the
memory impairment model. Its mechanism was that           safety of TCM and quality control of effectiveness.
phillygenin could express its anti-inflammatory           Since academician Liu Changxiao put forward,
activity through forsythia lipoproteins by inducing a     scholars have conducted preliminary discussions on
decrease in glial cell activation and expression levels   some Chinese medicines [119, 120] and TCM Patent
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doi:10.12032/TMRmhm202003069                                                                   REVIEW
Prescriptions [121, 122]. In order to evaluate the             LPS-induced LX2 cell activation and inflammation of
quality of F. suspensa objectively and scientifically,         the     TLR4/MyD88/NF-κB           signaling   pathway.
according to the definition of Q-marker, the Q-marker          Phillygenin could also inhibit LX2 cell activation and
of F. suspensa is predicted, which is helpful to               fibrotic cytokine expression by inhibiting the
establish a scientific quality control method of F.            LPS-induced proinflammatory response. Zou SS [126]
suspensa.                                                      intravenously and orally administered forsythiaside to
                                                               rabbit models infected with parainfluenza virus, and
Predictive analysis of Q-marker based on plant                 tested to significantly reduce the contents of the
genetics and chemical component-specific evidence              heating medium protein kinase C and cyclic adenosine
According to herbal research [123, 124], the TCM               monophosphate (cAMP) in the hypothalamus.
“Forsythia” mostly used Hyperic ascyron L. as the              Experiments showed that forsythia could reduce the
basis in the Song Dynasty. After the Song Dynasty, F.          body temperature of rabbits after parainfluenza virus
suspensa was used as the basis of the TCM “Forsythia”          infection, and its antipyretic mechanism may be
and has been used ever since. F. suspensa is derived           related to the down-regulation of cAMP content in
from Forsythia of Oleaceae. Forsythia species include          rabbit hypothalamus. Forsythiaside A [127] could
Lianqiao (F. suspensa Vahl), Jinzhonghua(F.                    prevent cigarette smoke-induced lung tissue damage
viridissima Lindl.), and Qinqiao(F. giraldiana                 in mice with chronic obstructive pulmonary disease by
Lingelsh.) in China. Studies on other breeds have been         activating Nrf2 and inhibiting the NF-κB signaling
scarce. F. suspensa is mainly distributed in Hebei,            pathway and this experiment also demonstrates that
Shanxi, Shaanxi, Shandong, Western Anhui, Henan,               forsythiaside A can attenuate the penetration of
Hubei, Sichuan and other provinces in China. There             inflammatory cells.
are many chemical constituents isolated from F.                   Phenylethanol glycosides and lignans correspond to
suspensa, including 36 phenylethanolic glycosides, 55          the traditional efficacy of F. suspensa, which were the
lignans, 58 terpenes and volatile oils, 25 C6-C2               main medicinal substance basis of traditional efficacy
natural alcohols and their glycosides, 23 flavonoids,          of F. suspensa, and also the main way and important
more than 50 sterols, alkaloids and phenolic acids.            basis for screening Q-marker of F. suspensa.
Among them, phenylethanol glycosides and lignans
are the main active ingredients and important                  Predictive analysis of Q-marker based on
chemical markers of F. suspensa. These two kinds of            traditional medicinal properties
effective components are selected as the quality               The classic taste of TCM [128] is the basic attribute of
indicators of F. suspensa.                                     TCM, and it is also an important basis for the
                                                               treatment of clinical symptoms and formulating
Predictive analysis of Q-marker based on                       prescriptions. It should also be used as one of the
traditional efficacy                                           bases for determining Q-marker. F. suspensa possesses
F. suspensa has the functions of clearing heat and             related properties: it has a bitter taste and cold
detoxification, reducing swelling and dispersing, and          attribute to lung, heart and small intestine. The
evacuating wind and heat. In modern pharmacological            important material foundation of “bitter taste” should
studies, the traditional efficacy of F. suspensa is based      first have the taste characteristics and functional
on the anti-inflammatory and anti-oxidation properties         properties of bitterness. The taste of the medicine has
of phenylethanolic glycosides (forsythiaside A, B, C,          a corresponding relationship with its chemical
D, E, etc.) and lignan compounds (phillygenin,                 components or constituents used in formulation. The
phillyrin, etc.) in F. suspensa. In modern                     glycosides and alkaloids are the main sources of the
pharmacology, the traditional efficacy of “clearing            bitter taste possessed by the cold medication [129].
away heat and detoxification” is mainly reflected in           Based on the above, it can be concluded that the
the pharmacological effects of antipyretic, cooling,           chemical components of phenylethanol glycosides and
antibacterial and anti-inflammatory; The traditional           lignans in F. suspensa should be the main material
effect of “swelling and dispersing the wind and                basis of its “sexual taste” and the main choice of
dispersing wind and heat” is mainly reflected in               Q-marker.
anti-virus, swelling and anti-inflammatory.
Hu NH [125] studied the inflammation model and                 Predictive analysis of Q-marker based on new
fibrosis model of human hepatic stellate cells (LX2)           pharmacodynamic uses
induced       by      different    concentrations      of      The phenylethanolic glycosides contained in F.
lipopolysaccharide (LPS), and then given high,                 suspensa have an effect of protecting the liver and
medium and low doses of phillygenin for intervention.          eliminating jaundice, and the aglycone caffeic acid
The results showed that phillygenin could inhibit              and its structural analog chlorogenic acid also have

TMRmhm | May 2020 | Vol.3 | No.2 | 92                       Submit a manuscript: https://www.tmrjournals.com/mhm
REVIEW                                                                           doi: 10.12032/TMRmhm202003069
the effect of protecting the liver and promoting gall       dehydrogenation, methylation, sulfation, etc. Bai Y
[101]. Cheng Y [130] reported that phillyrin and            [133] was used to study the pharmacokinetics of
forsythiaside A had different induction effects on          methanol extract of F. suspensa in rats. The liquid
cytochrome P450 in rat liver microsomal incubation          chromatography, electrospray ionization tandem mass
system. Both phillyrin and forsythiaside A can              spectrometry (LC-ESI-MS/MS) was established and
potentially induce cytochrome oxidase activity. Zhang       validated for the determination of 9 selected
YY [131] studied that the ethyl acetate extract of F.       components (forsythiaside A, forsythiaside B, rutin,
suspensa (EAF) could reduce the content of serum            astragaloside, phillyrin, kaempferol, quercetin,
triglyceride and total cholesterol in streptozotocin        iaorhamnetin and arctiin) in rat plasma. The
induced diabetic mice model. And it also increased the      experimental results showed that only three
content of high-density lipoprotein, and significantly      forsythiasides A, rutin and phillyrin are detected in the
reduced blood glucose levels in diabetic mice treated       plasma after oral administration of F. suspensa
with EAF. In addition, EAF may have anti-diabetic           methanol extract in rats. Li C studied the antiviral
effects by regulating gene expression and pancreatic        evaluation of phillyrin and its metabolites [134].
function. Leng W [132] explored the effects of              Phillyrin is converted to aglycone forsythiaside by
phillyrin on renal function, inflammatory response and      hydrolysis, and then converted to other metabolites
oxidative stress in diabetic nephropathy rats by            mainly through a series of metabolic processes in the
establishing a diabetic nephropathy rat model, and the      blood     such      as     methylation,   demethylation,
results showed that phillyrin can protect renal damage      dehydroxylation, and ring opening. The results
in diabetic nephropathy.                                    showed that phillyrin and four metabolites had
   It can be concluded that phenylethanolic glycosides      inhibitory effects on the H3N2 influenza virus,
and lignans are the main material foundations for F.        indicating that phillygenin were the main components
suspensa to protect the liver and lower blood sugar,        of phillyrin in rat plasma.
which should be taken as the Q-marker of F. suspensa.          Based on the above analysis, the blood components
                                                            of F. suspensa are mainly phenylethanol glycosides
Predictive analysis of Q-marker based on                    and lignans, which are closely related to medicinal
blood-introducible chemical components                      effects, and are likely to be the basis of the main
The chemical composition of TCM is very                     pharmacodynamic substances, which serve as an
complicated, and its complexity is manifested in the        important reference for screening F. suspensa
fact that TCM contains a large number of different          Q-marker.
structural types of chemical components, and each
type has a large number of chemical components. The         Predictive analysis of Q-marker based on changes
complexity of TCM ingredients is the basis for its          in chemical composition content of extracts under
multiple functions and multiple pharmacological             different storage conditions
effects. Although the chemical composition of TCM is        The clinical efficacy of Chinese medicine is related to
complex, the chemical ingredients must be absorbed          its quality, which is related to the effective active
into the blood and reach a certain blood concentration      ingredients. After the TCM is harvested and processed
in the body before they can play a pharmacological          for clinical applications, it is also extracted and stored.
effect directly or indirectly (except for a few             At this time, temperature, humidity, and light will
components that directly affect the intestine). By          affect the effective active ingredient content in it.
analyzing the components of the prototype and their         Selecting a suitable storage method is of great
metabolites after administration, analyzing the             significance to ensure the quality and stability of the
markedly       effective   ways      based      on    the   TCM. During the packaging and storage of F.
compound-target-pathway, and combining the tissue           suspensa, the contents of forsythiasides A, phillyrin
distribution of the blood-injecting components with         and phillygenin showed a decreasing trend [135]. In
the pathological site of the disease and the drug           addition, different morphological conditions have
intervention method, the effective ingredients of F.        different effects on their chemical composition
suspensa were screened and used as an important             content.
basis for predicting the Q-marker of F. suspensa.              Forsythiaside A in different morphological
   The oral bioavailability of phenylethanolic              conditions [136], has significantly different
glycosides is low, but the efficacy is significant, which   influencing factors, such as humidity under solid state
means that the mixture of prototypes and metabolites        conditions has a greater impact on the stability of
may be the group of active ingredients that play the        forsythiaside A; In aqueous solution, acid and alkali
role of efficacy. The main reactions of phenylethanolic     conditions have the greatest influence on its stability.
glycosides in vivo are hydrolysis, reduction,               In order to evaluate and control the quality of
Submit a manuscript: https://www.tmrjournals.com/mhm             TMRmhm | May 2020 | Vol.3 | No.2 | 93
doi:10.12032/TMRmhm202003069                                                                    REVIEW
forsythia more reasonably, phillyrin, phillygenin and            suspensa Extract Has the Potential to Substitute
forsythiaside A should be used as important reference            Antibiotic in Broiler Chicken. ASIAN AUSTRAL J
for screening F. suspensa Q- markers under different             ANIM 2012, 25: 569-76.
storage time.                                                  5.Zhang S, Shao SY, Song XY, et al. Protective
                                                                 effects of Forsythia suspense extract with
Conclusions and future perspectives                              antioxidant and anti-inflammatory properties in a
                                                                 model of rotenone induced neurotoxicity.
F. suspensa is a TCM commonly used in China. It has              NEUROTOXICOLOGY 2016, 52: 72-83.
a wide range of physiological activities and has a long        6.Chen CC, Chen HY, Shiao MS, et al. Inhibition of
history of extensive application, accurate curative              Low      Density      Lipoprotein      Oxidation     by
effects, and abundant sources of medicine. There are             Tetrahydrofurofuran Lignans from Forsythia
many new clinical applications, such as reducing                 suspensa and Magnolia coco. PLANTA MED 1999,
blood sugar, lowering blood pressure, regulating blood           65: 709-711.
lipids, and protecting the liver. The composition              7.Ko HC, Wei BL, Chiou WF. Dual regulatory effect
system of F. suspensa is complex, and the single index           of plant extracts of Forsythia suspense on RANTES
component has been used as the standard to meet the              and MCP-1 secretion in influenza A virus-infected
entire forsythia industry chain. However, to establish a         human        bronchial      epithelial      cells.     J
scientific and reasonable quality evaluation method,             ETHNOPHARMACOL 2005, 102: 418-423.
the quality of F. suspensa is evaluated                        8.Kim MS, Na HJ, Han SW, et al. Forsythia fructus
comprehensively and accurately, to guide the rational            inhibits     the     Mast-Cell-Mediated         Allergic
utilization of forsythia species, is of great practical          Inflammatory Reactions. INFLAMMATION 2003,
significance for healthy development of F. suspensa              27: 129-135.
industry.                                                      9.Editorial Board of Flora of China Flora of China,
   On the basis of summarizing the research status of F.         Science Press, Beijing 1978, P 163.
suspensa chemical composition and modern                       10.Wang Z, Xia Q, Liu X, et al. Phytochemistry,
pharmacological effects, this paper takes the Q-marker           pharmacology, quality control and future research
of TCM as the core concept. As shown in Figure 14,               of Forsythia suspensa (Thunb.) Vahl: A review. J
the relationship between traditional efficacy and                ETHNOPHARMACOL 2018, 210:318-339.
modern pharmacological effects need be fully                   11.Han J, Ye M, Guo H, et al. Analysis of multiple
understood. According to the chemical components                 constituents in a Chinese herbal preparation
and pharmacological effect of F. suspensa, relevant              Shuang-Huang-Lian            oral       liquid       by
literature of sexual taste, its measurable components,           HPLC-DAD-ESI-MSn.              J     PHARMACEUT
blood composition, etc., and combined with chemical              BIOMED 2007, 44: 430-438.
composition analysis and some related researches on            12.Nan WF, Qiang MZ, Ying L, et al. New
effectiveness, the literature analysis and demonstration         phenylethanoid glycosides from the fruits of
of the selection and determination of F. suspensa.               Forsythia suspensa (Thunb.) Vahl. MOLECULES
Q-markers were carried out, and a feasible path and a            2009, 14: 1324-1331.
reference model method for Q-marker analysis of                13.Wang Y, Guo Z, Jin Y, et al. Selective enrichment
TCM were put forward. It will lay a foundation for the           with "click oligo (ethylene glycol)" column and
prediction and analysis of the Q-marker of F. suspensa           TOF-MS           characterization       of       simple
in the future, so as to establish the quality control and        phenylpropanoids in the fruits of Forsythia
quality traceability system of F. suspensa.                      suspensa. J SEP SCI 2009, 32: 2958-2966.
                                                               14.Li C, Dai Y, Duan YH, et al. A new lignan
References                                                       glycoside from Forsythia suspensa. CHIN J NAT
                                                                 MEDICINES 2014, 12: 697-699.
1.National          Pharmacopoeia         Commission.          15.Yan XJ, Wen J, Xiang Y, et al. Study on
  Pharmacopoeia of the People's Republic of China.               Chemical Composition of Forsythia Suspension.
  China Medl Sci and Tech Press, 2015. (Chinese)                 China Tradit Herb Drugs 2017, 48: 644-647.
2.Gu GG(Qing dynasty). Shengnong Bencao Jing.                    (Chinese)
  Xueyuan Press 2007.                                          16.Shao SY, Feng ZM, Yang YN, et al. Eight new
3.Wang T, Si XQ, Zhou GL, et al. In vivo anti-tumor              phenylethanoid glycoside derivatives possessing
  effect and in vitro anti-angiogenic effect of alcohol          potential hepatoprotective activities from the fruits
  extract from Euphorbia prostrata. China J Chin                 of Forsythia suspensa. FITOTERAPIA 2017, 122:
  Mater. Med 2017, 42: 1722-1729.                                132.
4.Han X, Piao XS, Zhang HY, et al. Forsythia
TMRmhm | May 2020 | Vol.3 | No.2 | 94                       Submit a manuscript: https://www.tmrjournals.com/mhm
REVIEW                                                                      doi: 10.12032/TMRmhm202003069
17.Qu H, Zhang Y, Chai X, et al. Isoforsythiaside,        32.Sun YS, Wang Yan J, Wang JH, et al.
  an antioxidant and antibacterial phenylethanoid           Determination of four components in Forsythia
  glycoside isolated from Forsythia suspensa.               suspensa flower from different habitats by high
  BIOORG CHEM 2012, 40: 87-91.                              performance liquid chromatography. Journal of
18.Kuang HX, Xia YG, Liang J, et al.                        Food Safety & Quality 2014: 2791-2795.
  Lianqiaoxinoside       B,     a    novel     caffeoyl   33.Luan L, Wang GL, Lin RC. Studies on the
  phenylethanoid glycoside from Forsythia suspensa.         chemical constituents of extract with water from
  MOLECULES 2011, 16: 5674-5681.                            Forsythia suspensa. J Chin Med Mater 2010, 33:
19.Xia YG, Yang BY, Liang J, et al. Caffeoyl                220-221.
  phenylethanoid glycosides from unripe fruits of         34.Yan XJ, Peng Y, Liu ZX, et al. Three new lignan
  Forsythia suspensa. CHEM NAT COMPD+ 2015,                 glycosides from the fruits of Forsythia suspens. J
  51: 656-659.                                              ASIAN NAT PROD RES 2014.
20.Li C, Dai Y, Zhang SX, et al. Quinoid glycosides       35.Zou QY, Deng WL, Jiang SY, et al. Studies on
  from Forsythia suspensa. PHYTOCHEMISTRY                   chemical constituents from fruits of Forsythia
  2014, 104: 105-113.                                       suspense. China J Chin Mater Med 2012, 37: 57-60.
21.Zhao Q, Zhang HL, Zhang X, et al. Studies on           36.Feng WS, Li KK, Zheng XK. Studies on
  the chemical constituents of ethyl acetate in             chemical constituents in Forsythia suspensa
  Forsythia suspensa. China J Chin Mater Med 2015,          (Thunb.) Vahl. Chin Pharm J, 2009, 44: 490-492.
  09: 1755-1758.                                            (Chinese)
22.Liu DD, Zhang Y, Xu SX, et al. Phenylethanoid          37.Su W, Liu Q, Yang Q, et al. Separation of Four
  glycosides from Forsythia suspensa Vahl. J Chin           Compounds from Forsythia suspensa by
  Pharm Sci 1998, 7: 103-105.                               Counter-Current Chromatography with Stepwise
23.Yan XJ, Bai XY, Liu QB, et al. Two new                   Elution. SEP SCI TECHNOL 2014, 49: 2098-2104.
  glycosides from the fruits of Forsythia suspensa. J     38.Kuang HX, Xia YG, Yang BY, et al. A New
  ASIAN NAT PROD RES 2014, 16: 376-382.                     Caffeoyl Phenylethanoid Glycoside from the
24.Ming DS, Yu DQ, Yu SS. Two new caffeyol                  Unripe Fruits of Forsythia suspensa. Chin J Nat
  glycosides from Forsythia suspensa. J ASIAN NAT           Med 2009, 7: 278-282.
  PROD RES 1999, 1: 327-335.                              39.Yan XJ, Wen J, Xiang Z, et al. Two new phenolic
25.Kuo PC, Chen GF, Yang ML, et al. Chemical                acids from the fruits of Forsythia suspense. J
  constituents from the fruits of Forsythia suspensa        ASIAN NAT PROD RES 2017, 19: 254-259.
  and their antimicrobial activity. BIOMED RES INT        40.Wang Y, Ren LL. Research progress on chemical
  2014, P 1-7.                                              constituents of Forsythia suspensa and Yinqiao
26.Chen L, Li X, Li Q, et al. Research progress on          Jiedu Tablets. Modern Medicine and Health 2014,
  chemical constituents of Forsythia plants. Modern         09: 1333-1335. (Chinese)
  Medicine and Clinic 2013, 03: 441-445. (Chinese)        41.Chang MJ, Hung TM, Min BS, et al. Lignans
27.Nishibe S , Chiba M , Hisada S . Studies on the          from the Fruits of Forsythia suspensa (Thunb.) Vahl
  Chinese Crude Drug "Forsythiae Fructus." I. On the        Protect High-Density Lipoprotein during Oxidative
  Constituents of Forsythiae Fructus on the Market.         Stress. BIOSCI BIOTECH BIOCH 2008, 72:
  YAKUGAKU ZASSHI 1977, 97: 1134-1137.                      2750-2755.
28.Liang J, Gong FQ, Sun HM. Simultaneous                 42.Piao XL, Jang MH, Cui J, et al. Lignans from the
  separation of eight lignans in Forsythia suspensa by      fruits of Forsythia suspensa. BIOORG MED
  β-cyclodextrin-modified          capillary       zone     CHEM LETT 2008, 18: 1980-1984.
  electrophoresis. MOLECULES 2018, 23: 1-9.               43.Xia W, Dong CM, Yang CF, et al. Research
29.Kuo PC, Hung HY, Nian CW, et al. Chemical                progress    on      chemical    constituents    and
  constituents and anti-inflammatory principles from        pharmacology of Forsythia suspensa. Modern
  the fruits of Forsythia suspensa. J NAT PROD 2017,        Chinese Medicine 2016, 12: 1670-1674. (Chinese)
  4:1055.                                                 44.Shi T. Study on active substances of chloroform
30.Song XJ. Research progress on chemical                   extract of Forsythia suspensa. Xiamen University
  components in different parts of forsythia .              2011. (Chinese)
  Northwest Pharmaceutical Journal 2014, 02:              45.Ming DS. Study on Chemical Composition and
  220-222. (Chinese)                                        Biological Activity of Forsythia and Spider
31.Li C, Wei Q, Zou ZH, et al. A lignan and a lignan        Fragrance. Beijing: China Union Medical College
  derivative from the fruit of Forsythia suspensa,          1998. (Chinese)
  PHYTOCHEM LETT 2019, 32: 115-118                        46.Li C, Dai Y, Zhang SX, et al. Quinoid glycosides

Submit a manuscript: https://www.tmrjournals.com/mhm           TMRmhm | May 2020 | Vol.3 | No.2 | 95
doi:10.12032/TMRmhm202003069                                                                REVIEW
  from Forsythia suspensa. PHYTOCHEMISTRY                    59.Cui Y, Wang Q, Shi X, et al. Simultaneous
  2014, 104: 105-113.                                          Quantification of 14 Bioactive Constituents in
47.Endo K, Hikino H. Structures of rengyol,                    Forsythia        Suspensa          by         Liquid
  rengyoxide, and rengyolone, new cyclohexylethane             Chromatography-Electrospray         Ionisation-Mass
  derivatives from Forsythia suspensa fruits. CAN J            Spectrometry. PHYTOCHEM ANALYSIS 2010, 21:
  CHEM 1984, 62: 2011-2014.                                    253-260.
48.Seya K, Endo K, Hikino H. Structures of                   60.Zhang F, Yang YN, Song XY, et al.
  rengyosides A, B and C, three glucosides of                  Forsythoneosides        A-D,        neuroprotective
  Forsythia suspensa fruits. PHYTOCHEMISTRY                    phenethanoid and flavone glycoside heterodimers
  1989, 28: 1495-1498.                                         from the Fruits of Forsythia suspensa. J NAT
49.Endo K, Seya K, Hikino H. Structure and                     PROD 2015, 78: 2390-2397.
  enantioselective synthesis of suspenol, a new polyol       61.Yan XJ, Xiang Y, Wen J, et al. Study on the
  of Forsythia suspensa. Tennen Yuki Kagobutsu                 chemical constituents of phenolic acids in Forsythia
  Toronkai Koen Yoshishu 1987, 29: 660-667.                    suspensa. Chinese Pharmaceutical Journal 2017, 02:
50.Shao SY, Feng ZM, Yang YN, et al. Eight new                 105-108. (Chinese)
  phenylethanoid glycoside derivatives possessing            62.Ge Y, Wang Y, Chen P, et al.
  potential hepatoprotective activities from the fruits        Polyhydroxytriterpenoids and Phenolic Constituents
  of Forsythia suspensa. FITOTERAPIA 2017, 122:                from Forsythia suspensa (Thunb.) Vahl Leaves. J
  132-137.                                                     AGR FOOD CHEM 2015, 64: 125-131.
51.Wen J, Yan XJ, Liang W, et al. Two new                    63.Ming DS, Yu DQ, Yu SS, New Quinoid
  polyhydric alcohols from fruits of Forsythia                 Glycosides from Forsythia suspensa. J NAT PROD
  suspensa. China Tradit Herb Drugs 2018, 49:                  1998, 61: 377-9.
  278-281.                                                   64.Xue J, Xie Li, Liu BR, et al. Triterpenoids from
52.Zhang GG, Song SJ, Ren J, et al. A New                      the Fruits of Forsythia suspensa. CHIN J NAT
  Compound from Forsythia suspensa (Thunb.) Vahl               MEDICINES 2010, 8: 414-418.
  with Antiviral Effect on RSV. J Herb Pharmacother          65.Bai XL. Study on the chemical constituents of
  2002, 2: 35-40.                                              traditional    Chinese      medicine       forsythia.
53.Wang WF, Liu DL, Xu SX, Xiao FH. New                        Heilongjiang Medicine 2016, 29: 601-602.
  compounds in forsythia. Journal of Shenyang                  (Chinese)
  Pharmaceutical University 1999, 02: 63-70.                 66.El-Desouky SK, Kim YK. A phenylethanoid
  (Chinese)                                                    glycoside and other constituents from the Fruits of
54.Kitagawa S, Nishibe S, Baba H. Studies on the               Forsythia koreana. Z NATURFORSCH B 2014, 63:
  Chinese Crude Drug "Forsythiae Fructus." VIII. On            90-94.
  Isolation of Phenylpropanoid Glycosides from               67.Ming DS, Yu DQ, Yu SS, et al. A new furofuran
  Fruits of Forsythia koreana and Their Antibacterial          mono-lactone from Forsythia suspensa. J ASIAN
  Activity. YAKUGAKU ZASSHI 1987, 107:                         NAT PROD RES 1999, 1: 221-226.
  274-278.                                                   68.Ming DS, Yu DQ, Yu SS. Three new compounds
55.Wang L, Piao XL, Kim SW, et al. Effects of                  from Forsythia suspensa (Thunb.) Vahl. CHINESE
  Forsythia suspensa Extract on Growth Performance,            CHEM LETT 1998, 01: 51-55.
  Nutrient Digestibility, and Antioxidant Activities in      69.Yan XJ. Research progress on chemical
  Broiler Chickens Under High Ambient Temperature.             composition and pharmacological activity of
  POULTRY SCI 2008, 87: 1287-1294.                             Forsythia     suspensa.    Chinese       Commodity
56.Wu YF, Wang XS, Yuan YL, et al. Studies on the              Association. Proceedings of the 5th National
  chemical constituents of Forsythia suspensa. China           Congress of Chinese Medicine Commodities of
  Tradit Herb Drugs2013, 44: 2052-2054. (Chinese)              Chinese     Commodity      Association.     Chinese
57.Bai Y, Li J, Liu W, et al. Pharmacokinetic of 5             Commodity Association: Chinese Commodity
  components after oral administration of Fructus              Association 2017, P: 558-580. (Chinese)
  Forsythiae by HPLC-MS/MS and the effects of                70.Jiao J, Fu YJ, Zu YG, et al. Enzyme-assisted
  harvest time and administration times. J                     microwave hydro-distillation essential oil from
  CHROMATOGR B 2015, P:36-46.                                  Fructus forsythia, chemical constituents, and its
58.Liu Y, Song SJ, Xu SX, Fu XH. Study on                      antimicrobial and antioxidant activities. FOOD
  Chemical Composition of Forsythia Suspense.                  CHEM 2012, 134: 235-243.
  Journal of Shenyang Pharmaceutical University              71.Yang JJ, Wei HM, Teng XN, et al. Dynamic
  2003, 02: 101-103. (Chinese)                                 ultrasonic nebulisation extraction coupled with

TMRmhm | May 2020 | Vol.3 | No.2 | 96                     Submit a manuscript: https://www.tmrjournals.com/mhm
REVIEW                                                                        doi: 10.12032/TMRmhm202003069
  headspace      ionic     liquid-based    single-drop      edema rats by serum metabolomics. BIOMED
  microextraction for the analysis of the essential oil     PHARMACOTHER 2017, 95: 929-937.
  in Forsythia suspensa. PHYTOCHEM ANALYSIS               85.Hwang YH, Kim DG, Li W, et al.
  2014, 25: 178-84.                                         Anti-inflammatory effects of Forsythia suspensa in
72.Zhang Y, Xue KP, Zhao EY, et al. Determination           dextran     sulfate      sodium-induced     coliti.   J
  of oleanolic acid and ursolic acid in Chinese             ETHNOPHARMACOL 2017, 206: 73-77.
  medicinal plants using HPLC with PAH polymeric          86.Zhang XT, Ding Y, Kang P, et al. Forsythoside A
  C18. PHARMACOGN MAG 2013, 9: S19-24.                      modulates zymosan-induced peritonitis in mice.
73.Fang Y, Zou GA, Liu YW. Chemical                         MOLECULES 2018, 23: 593.
  Composition of Forsythia Suspense. China Natural        87.Lee JJ, Kim KH, Kim EJ, et al.
  Medicine 2008, 03: 235-236. (Chinese)                     Anti-inflammatory activity of the decoction of
74.Zhang Q, Lu Z, Li X, et al. Triterpenoids and            Forsythia suspensa (Thunb.) Vahl is related to Nrf2
  Steroids from the Leaves of Forsythia suspensa.           and A20. J ETHNOPHARMACOL 2018,
  CHEM NAT COMPD+ 2015, 51: 178-180.                        227:97-104.
75.Rouf AS, Ozaki Y, Rashid MA, et al. Dammarane          88.Rothschild DE, Mcdaniel DK, Ringel-Scaia VM,
  derivatives from the dried fruits of Forsythia            et al. Modulating inflammation through the
  suspensa.     PHYTOCHEMISTRY 2001,               56:      negative regulation of NF-κB signaling. J
  815-818.                                                  LEUKOCYTE BIOL 2018.
76.Dai S, Ren Y, Shen L, et al. New Alkaloids from        89.Hwang YH, Kim DG, Li W, et al.
  Forsythia suspensa and their anti-inflammatory            Anti-inflammatory effects of Forsythia suspensa in
  activities. PLANTA MED 2009, 75: 375-377.                 dextran sulfate sodium-induced colitis. J
77.Guo Q, Wang ZM, Lin LM, et al. Research                  ETHNOPHARMACOL 2017, 206.
  Progress on Chemical Components of Medicinal            90.Wang Y, Zhao H, Lin C, et al. Forsythiaside A
  Plants of Forsythia. China Journal of Experimental        exhibits       anti-inflammatory        effects      in
  Traditional Medical Formulae 2009, 15: 74-79.             LPS-Stimulated BV2 microglia cells through
  (Chinese)                                                 activation of Nrf2/HO-1 signaling pathway.
78.Guo YP, Lin LG, Wang YT. Chemistry and                   NEUROCHEM RES 2016, 41: 659-665.
  pharmacology of the herb pair Flos Lonicerae            91.Zhong WT, Wu YC, Xie XX, et al. Phillyrin
  japonicae-Forsythiae fructus. CHIN MED-UK 2015,           attenuates LPS-induced pulmonary inflammation
  10:16.                                                    via suppression of MAPK and NF-κB activation in
79.Bai YE, Qi XM, Yang GH, et al. In vitro                  acute lung injury mice. FITOTERAPIA 2013, 90:
  antibacterial test of forsythia extract. Journal of       132-139.
  Shanxi Medical University 2003, 06: 506-507.            92.Lee S, Shin S, Kim H, et al. Anti-inflammatory
  (Chinese)                                                 function of arctiin by inhibiting COX-2 expression
80.Han X, Piao XS, Zhang HY, et al. Forsythia               via NF-κB pathways. J INFLAMM-LOND 2011, 8:
  suspensa extract has the potential to substitute          16.
  antibiotic in broiler chicken. ASIAN AUSTRAL J          93.Muluye         RA,       Bian    Y,   Alemu        PN.
  ANIM 2012, 25: 569-576.                                   Anti-inflammatory and antimicrobial effects of
81.Feng SY, Li XR, Sun JN. Study on anti-infection          heat-clearing Chinese Herbs: A Current Review. J
  and antipyretic effect of forsythiaside. Progress in      TRADIT COMPLEM MED 2014, 4: 93-98.
  Modern Biomedicine 2006, 10: 73-75. (Chinese)           94.Guo YP, Lin LG, Wang YT. Chemistry and
82.Chen CL, Zhang DD. Anti-Inflammatory effects             pharmacology of the herb pair Flos Lonicerae
  of 81 Chinese herb extracts and their correlation         japonicae-Forsythiae fructus. CHIN MED-UK 2015,
  with the characteristics of Traditional Chinese           10:16.
  Medicine. EVID-BASED COMPL ALT 2014,                    95.Qu XY, Li QJ, Zhang HM, et al. Protective
  P:1-8.                                                    effects of phillyrin against influenza A virus in vivo.
83.Wang TT, Zhang Y, Yang ZM, et al. Study on               ARCH PHARM RES 2016, 39: 998-1005.
  antibacterial and anti-inflammatory activity and its    96.Law HY, Yang LH, Lau SY, et al. Antiviral effect
  main chemical constituents of Forsythia suspensa          of forsythoside A from Forsythia suspensa (Thunb.)
  and Forsythia suspensa leaves. Chin Drug Clin             Vahl fruit against influenza A virus through
  Med 2019, 19: 2380-2381. (Chinese)                        reduction       of      viral    M1      protein.     J
84.Yuan A, Gong L, Luo L, et al. Revealing                  ETHNOPHARMACOL 2017, 209: 236-247.
  anti-inflammation mechanism of water-extract and        97.Li D, Peng P, Ke Z, et al. Forsythoside A
  oil of forsythiae fructus on carrageenan-Induced          Controls Influenza A Virus Infection and Improves

Submit a manuscript: https://www.tmrjournals.com/mhm           TMRmhm | May 2020 | Vol.3 | No.2 | 97
doi:10.12032/TMRmhm202003069                                                               REVIEW
  the Prognosis by Inhibiting Virus Replication in          110.Zhang S, Shao SY, Song XY, et al. Protective
  Mice. MOLECULES 2016, 21:524.                               effects of Forsythia suspense extract with
98.Yang Y. Screening of single Chinese medicine               antioxidant and anti-inflammatory properties in a
  against swine influenza virus in vitro. Tai an:             model of rotenone induced neurotoxicity.
  Shandong Agricultural University 2013. (Chinese)            NEUROTOXICOLOGY 2016, 52: 72-83.
99.Yuan A, Zhao MJ, Li Y, et al. A review of the            111.Kim JM, Kim S , Kim DH, et al.
  pharmacological effects of forsythia. Traditional           Neuroprotective effect of forsythiaside against
  Chinese Medicine and Clinical Medicine 2015, 6:             transient cerebral global ischemia in gerbil. EUR J
  56-59. (Chinese)                                            PHARMACOL 2011, 660: 326-333.
100.Bao J, Ding R, Zou L, et al. Forsythiae Fructus         112.Iizuka T, Nagai M. Vasorelaxant effects of
  inhibits B16 melanoma growth involving                      forsythiaside from the Fruits of Forsythia suspensa.
  MAPKs/Nrf2/HO-1 mediated anti-oxidation and                 YAKUGAKU ZASSHI 2005, 125: 219-224.
  anti-Inflammation. AM J CHINESE MED 2016,                 113.Hao FF. Experimental study of Forsythia
  44(05):1043-1061.                                           suspensa and its effect on gastrointestinal motility
101.Pan CW, Zhou GY, Chen WL, et al. Protective               in baohe pills. Shandong University of Traditional
  effect       of      forsythiaside       A        on        Chinese Medicine 2018. (Chinese)
  lipopolysaccharide/d-galactosamine-induced liver          114.Liu CX, Chen SL, Xiao XH, et al. Q-Marker: A
  injury. INT IMMUNOPHARMACOL 2015, 26:                       New Concept of Quality Control of Traditional
  80-85.                                                      Chinese Medicine Products. China Tradit Herb
102.Qu H, Zhang Y, Chai X, et al. Isoforsythiaside,           Drugs 2016, 47: 1443-1457. (Chinese)
  an antioxidant and antibacterial phenylethanoid           115.Liu CX. Construction of Chinese Medicine
  glycoside isolated from Forsythia suspensa.                 Quality Traceability System Based on Chinese
  BIOORG CHEM 2012, 40: 87-91.                                Medicine Quality Markers. China Tradit Herb
103.Lu T, Piao XL, Zhang Q, et al. Protective effects         Drugs 2017 48: 3669-3676. (Chinese)
  of Forsythia suspensa extract against oxidative           116.Liu CX, Chen SL, Xiao XH, et al. Q-Marker of
  stress induced by diquat in rats. Food & Chemical           Chinese Medicine: A New Concept of Quality
  Toxicology An International Journal Published for           Control of Traditional Chinese Medicine Products.
  the British Industrial Biological Research                  China Tradit Herb Drugs 2016, 47: 1443-1457.
  Association 2010, 48: 764-770.                              (Chinese)
104.Piao XL, Cho EJ, Cho EJ, et al. Cytoprotective          117.Liu CX. Q-marker of Traditional Chinese
  effect of lignans from Forsythia suspensa against           Medicine: Improving the Quality Standard of
  peroxynitrite-induced LLC-PK1 cell damage.                  Traditional Chinese Medicine and Quality Control
  PHYTOTHER RES 2009, 23: 938-942.                            Theory and Promoting the Scientific Development
105.Huang CK, Lin Y, Su H, et al. Forsythiaside               of Traditional Chinese Medicine Industry. China
  Protects Against Hydrogen Peroxide-Induced                  Tradit Herb Drugs 2019, 50: 4517-4518. (Chinese)
  Oxidative Stress and Apoptosis in PC12 Cell.              118.Zhang TJ, Bai G, Liu CX. The concept, core
  NEUROCHEM RES 2015, 40: 27-35.                              theory and research methods of quality markers of
106.Ge Y, Wang Y, Chen P, et al.                              traditional Chinese medicine. ACTA PHARM SIN
  Polyhydroxytriterpenoids and phenolic constituents          B 2019, 54: 187-196 + 186. (Chinese)
  from Forsythia suspensa (Thunb.) Vahl Leaves. J           119.Xue QQ, Li AP, Li K, et al. Summary of Quality
  AGR FOOD CHEM 2015, 64 125-131.                             Evaluation Research of Astragalus and Preliminary
107.Sung YY, Yoon T, Jang S, et al. Forsythia                 Exploration of Quality Marker Research Strategy.
  suspensa      suppresses     house     dust     mite        Drug Evaluation Research 2019, 42: 2459-2463.
  extract-induced atopic dermatitis in NC/Nga mice.           (Chinese)
  PLOS ONE 2016, 11, e0167687.                              120.Zhang HJ, Gong SX, Xu J, et al. Research
108.Hao Y, Li D, Piao X, et al. Forsythia suspensa            Progress and Prediction and Analysis of Quality
  extract alleviates hypersensitivity induced by              Markers of Alisma orientalis. China Tradit Herb
  soybean β-conglycinin in weaned piglets. J                  Drugs 2019, 50: 4741-4751. (Chinese)
  ETHNOPHARMACOL 2010,128: 412-418.                         121.Hao M, Tong HJ, Zhang J, et al. Study on
109.Wang HM, Wang LW, Liu XM, et al.                          Quality Markers of Chinese Herbal Pieces: Study
  Neuroprotective effects of forsythiaside on learning        on Quality Evaluation of Zedoary Rhizoma Pieces
  and memory deficits in senescence-accelerated               and Discussion on Quality Standards. China Tradit
  mouse prone (SAMP8) mice. PHARMACOL                         Herb Drugs 2019, 50: 4673-4682. (Chinese)
  BIOCHEM BE 2013, 105: 134-141.                            122.Zhang TJ, Xu J, Han YQ, et al. Research on

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