The chemical constituents from the extract of the twigs of Euscaphis konishii with anti-hepatoma activity were investigated, twelve compounds by repeated chromatography with silica gel, Sephadex LH-20 and preparative-HPLC. The structures of the chemical components were elucidated by spectroscopy methods, as konilignan(1),(7R, 8S)-dihydrodehydrodico-niferylalcohol-9-O-β-D-glucopyranoside(2),illiciumlignan B(3),threo-1-(4-hydroxy-3-methoxyphenyl)-2-[4-(3-hydroxypropyl)-2-methoxyphenoxy]-1,3-panediol(4),erythro-1-(4-hydroxy-3-methoxyphenyl)-2-[4-(3-hydroxypropyl)-2-methoxyphenoxy]-1,3-panediol(5), matairesinol(6), wikstromol(7), isolariciresinol(8),(+)-lyoniresinol(9), 4-ketopinoresinol(10), syringaresin(11), and vladinol D(12). Among them, compound 1 is a new lignan. Compounds 10 and 12 had moderate inhibitory activity on HepG2 cells, with IC_(50) values of 107.12 μmol·L~(-1) and 183.56 μmol·L~(-1), respectively.
Chromatography, High Pressure Liquid ; Lignans/pharmacology* ; Plant Extracts/pharmacology*

Phenylpropanoids are one of the major chemical constituents in Zanthoxylum species. They include simple phenylpropanoids, coumarins, and lignans and possess anti-tumor, anti-inflammatory, anti-platelet aggregation, anti-bacterial, anti-viral, insecticidal, and antifeedant activities. This review summarizes the chemical constituents and pharmacological activities from the Zanthoxylum plants in hopes of providing reference for the research and application of phenylpropanoids from this genus.
Anti-Inflammatory Agents/pharmacology* ; Coumarins/pharmacology* ; Lignans ; Plant Extracts ; Zanthoxylum

Schisandrae has a long history of medicinal use in China. Domestic and foreign scholars have isolated a variety of chemical constituents from Schisandrae Sphenantherae Fructus and Schisandrae Chinensis Fructus, including lignans, volatile oils, polysaccharides, triterpenoids, organic acids, amino acids and so on. Pharmacological studies have shown that their alcohol extracts, water extracts, lignan monomers and polysaccharides could protect liver injury and reduce enzyme ability by a variety of hepatoprotective effects such as enzyme reducing, liver protecting, and antioxidant effect. In this paper, the researches on the chemical composition, hepatoprotective effect and pharmacokinetics of Schisandrae Sphenantherae Fructus and Schisandrae Chinensis Fructus in the past forty years were systematically collated, in order to provide useful enlightenment for the clinical application and new drug development of Schisandrae Sphenantherae Fructus and Schisandrae Chinensis Fructus in liver protection.
China ; Drugs, Chinese Herbal ; Fruit ; Lignans/pharmacology* ; Schisandra

This paper aims to investigate the chemical constituents of the seeds of Herpetospermum pedunculosum. One new coumarin and two known lignans were isolated from the ethanolic extract of the seeds of H. pedunculosum with thin layer chromatography(TLC), silica gel column chromatography, Sephedax LH-20 chromatography, Semi-preparative high performance liquid chromatography and recrystallization, etc. Their structures were elucidated as herpetolide H(1), phyllanglaucin B(2), and buddlenol E(3) by analysis of their physicochemical properties and spectral data. Among them, compound 1 was a new compound, and compounds 2 and 3 were isolated from this genus for the first time. In vitro anti-inflammatory activity test showed that herpetolide H had certain NO inhibitory activity for LPS-induced RAW 264.7 cells, with its IC_(50) value of(46.57±3.28) μmol·L~(-1).
Chromatography, High Pressure Liquid ; Coumarins/pharmacology* ; Cucurbitaceae ; Lignans ; Seeds

Magnolol is one of main active constituents from Magnolia officinalis, a widely used traditional Chinese medicine. Previous studies have proved its multiple pharmacological effects, such as anti-oxidation, anti-microbial and anti-tumor. In recent years, more and more studies have focused on magnolol both at home and abroad. This essay summarizes the advance in the latest studies on the pharmacological effects of magnolol, and briefs main problems in current studies and future development orientation.
Animals ; Biphenyl Compounds ; pharmacology ; Drugs, Chinese Herbal ; pharmacology ; Humans ; Lignans ; pharmacology ; Magnolia ; chemistry

Honokiol is the dominant biphenolic compound isolated from the Magnolia tree, and has long been considered as the active constituent of the traditional Chinese herb, 'Houpo', which is widely used to treat symptoms due to 'stagnation of qi'. Pharmacological studies have shown that honokiol possesses a wide range of bioactivities without obvious toxicity. Honokiol protects the liver, kidneys, nervous system, and cardiovascular system through reducing oxidative stress and relieving inflammation. Moreover, honokiol shows anti-diabetic property through enhancing insulin sensitivity, and anti-obese property through promoting browning of adipocytes. In vivo and in vitro studies indicated that honokiol functions as an anti-cancer agent through multiple mechanisms: inhibiting angiogenesis, promoting cell apoptosis, and regulating cell cycle. A variety of therapeutic effects of honokiol may be associated with its physiochemical properties, which make honokiol readily cross the blood brain barrier and the blood-cerebrospinal fluid barrier, with high bioavailability. In the future, more clinical researches on honokiol are needed to fully authenticate its therapeutic values.
Apoptosis ; Biphenyl Compounds/pharmacology* ; Drugs, Chinese Herbal/pharmacology* ; Humans ; Lignans/pharmacology* ; Magnolia

Six new oligomeric neolignans including two trimeric neolignans (1 and 2) and four dimeric neolignans (3-6) were isolated from the leaves of Magnolia officinalis var. biloba. Their structures were determined based on HR-ESIMS and NMR data, as well as electronic circular dichroism (ECD) calculations. Compound 1 is formed from two obovatol moieties directly linked to an aromatic ring of the remaining obovatol moiety, which is an unprecedented type of linkage between monomers. All isolates were assessed for their inhibitory effects on NO production in LPS-stimulated RAW 264.7 macrophage cells. Compounds 1 and 3 showed significantly inhibitory activities with IC
Animals ; Lignans/pharmacology* ; Magnolia/chemistry* ; Mice ; Molecular Structure ; Phytochemicals/pharmacology* ; Plant Extracts/pharmacology* ; Plant Leaves/chemistry* ; RAW 264.7 Cells

Two new lignan glucosides, tinsinlignans A and B (1 and 2), two new oxyneolignans, tinsinlignans C and D (3 and 4), along with one known analogue (5), were isolated from the stems of Tinospora sinensis. The structures of the new compounds were elucidated based on analysis of spectroscopic data, and the absolute configuration of 1 was determined through electronic circular dichroism (ECD) calculation based on the time-dependent density functional theory (TD-DFT). Compounds 1-4 were evaluated for their inhibitory effects on nitric oxide (NO) production induced by lipopolysaccharide (LPS) in murine RAW264.7 macrophage cells and compounds 1 and 2 exhibited moderate inhibitory activities with IC
Animals ; Glucosides/pharmacology* ; Lignans/pharmacology* ; Lipopolysaccharides ; Mice ; Molecular Structure ; Nitric Oxide ; Phytochemicals/pharmacology* ; RAW 264.7 Cells ; Tinospora/chemistry*

In this study, we focused on the study of pharmacodynamic effects for 6 major bioactive lignans of Schisandra chinensis, namely deoxyschizandrin, schisandrin B, schisandrin C, schisandrin, schizandrol B and schisantherin A. A compound-gene-pathway network, which contained 124 related genes and 88 pathways, was constructed by collecting drug genes through mining relevant literatures and network pharmacology analysis. Based on the network analysis, 32 pathways and 80 related genes were associated with inflammation, which implied that anti-inflammatory might be the major pharmacodynamic effects of these compounds. All lignans except schizandrol B reduced LPS-induced NO production in RAW264.7 cells, which validated the anti-inflammatory hypothesis generated from network analysis. Furthermore, we investigated the effects of deoxyschizandrin, schisandrin C, schisandrin and schisantherin A on the secretion of inflammatory cytokines TNF-α, IL-1β, IL-6, PGE2 and protein expressions of iNOS, COX-2. As a result, deoxyschizandrin showed the strongest anti-inflammatory activity with inhibitory effect on all 4 inflammatory cytokines secretions and protein expressions of iNOS, COX-2. This study provided evidences for systematic exploration on the pharmacolgical actions and mechanisms of schisandra.
Animals ; Cells, Cultured ; Cytokines ; secretion ; Internet ; Lignans ; pharmacology ; Mice ; Schisandra ; chemistry

OBJECTIVE: To compare the effects of different concentrations of linolenin on inhibiting apoptosis of chondrocytes in the growth plate, and to screen the optimal concentration of linolenin, so as to provide theoretical support for delaying epiphyseal closure and promoting long bone growth in rats. METHODS: Two 4-week-old male SD rats (SPF grade) with a body mass of 80 g were selected. The growth plate cartilage of rat tibia and femur was dissected and isolated in vitro to obtain growth plate chondrocytes for culture. The chondrocytes were observed and identified by inverted phase contrast microscope and typeⅡ collagen immunofluorescence test, and then 20 ng/ml IL-1β was used to induce apoptosis of growth plate chondrocytes as model group, and added with 1, 10, 20, 40 μM linolenin as the experimental group, and 5 μM letrozole as the positive control group. The cells were cultured for 24 and 48 hours respectively. The drug promoted cell proliferation was observed by MTT method, and the drug inhibited cell apoptosis was detected by flow cytometry. RESULTS: Contents 1, 10, 20, 40 μM could promote cell proliferation in varying degrees, and the principle was that the drug inhibits IL-1β induced chondrocyte apoptosis in the growth plate, and the optimal concentration of drugs to inhibit apoptosis was 20 μM. CONCLUSION The appropriate concentration of linseed lignans can significantly inhibit the apoptosis of chondrocytes in the growth plate of rats, and the optimal drug concentration is 20 μM. It provides possibility for delayed bone closure and longer growth time to promote bone growth during development.
Male ; Rats ; Animals ; Growth Plate ; Chondrocytes ; Flax ; Rats, Sprague-Dawley ; Apoptosis ; Lignans/pharmacology*