• Archives of Pharmacal Research
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• v.13 no.3
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• pp.278-281
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• 1990

Two lingans were isolated from hexane-soluble fraction of Korean red ginseng. Their chemical structures were elucidated as gomisin N and gomisin A by spectrometric analysis.

• Proceedings of the Ginseng society Conference
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• 1990.06a
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• pp.75-78
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• 1990

Two lignanes, Comp.-I, mp 108-1$0^{\circ}C$ and Comp.-II, mp 50-52$^{\circ}C$ were isolated from Korean ginseng extract by repeated column chromatographic purification. Comp-1 was identified as gomisin-N and Comp. -II as gomisin-A by spectrometric analysis, both of which have already been described as the anti-hepatotoxic lignin components of Schizandra chinensis Bail.

• Korean Journal of Food Science and Technology
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• v.46 no.6
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• pp.665-670
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• 2014

We isolated twelve lignans and three terpenoids were isolated from the n-hexane fraction of Schisandra chinensis extract. Using spectroscopic data and comparison with available literature, the following compounds were identified: (1) wuweizisu C, (2) gomisin N, (3) deoxyschisandrin, (4) gomisin A, (5) schisandrin, (6) chamigrenal, (7) schisanlactone D, (8) methylgomisin O, (9) angeloylgomisin O, (10) (-)-gomisin $L_2$, (11) schisandronic acid, (12) (-)-gomisin $L_1$, (13) (+)-gomisin $K_3$, (14) gomisin J, and (15) tigloylgomisin H. Notably, this was the first finding that compound (8) was isolated from this plant. Each compound was evaluated for its in vitro cytotoxic activities toward HL-60 (human leukemia), HeLa (human cervical carcinoma), and MCF-7 (breast cancer) cell lines. Compounds (7), (8), and (9) exhibited strong cytotoxic effects on HL-60 ($IC_{50}$ 7.37, 6.60, and $8.00{\mu}M$, respectively), whereas compound (6) exhibited weak cytotoxicity towards MCF-7 ($IC_{50}$ $30.50{\mu}M$). In addition, compound (8) showed the strongest activity towards HeLa cells ($IC_{50}$ $1.46{\mu}M$).

• Natural Product Sciences
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• v.10 no.3
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• pp.104-108
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• 2004

Five lignans including gomisin N (1), wuweizisu C (2), gomisin L1 (3), (+)-deoxyschizandrin (4), and gomisin J (5) have been isolated from the fruits of Schizandra chinensis. The structures of the isolated compounds were elucidated by analyzing MS and NMR spectra. Effects of the compounds isolated in this study on the dopamine content in PC12 cells were investigated to evaluate their inhibitory effectiveness. The gomisin N, wuweizisu C, and gomisin J showed 25.4%, 39.8%, and 35.1 %, respectively, inhibition effect on dopamine content in PC12 cells at the concentration of $50\;{\mu}g/ml$.

• Korean Journal of Medicinal Crop Science
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• v.12 no.2
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• pp.141-148
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• 2004

Two compounds from Gomisin N and Gomisin A were isolated from the fruits of Schizandra chinensis Baillon. The highest extraction yield as 21.36% was observed in the ethanol extract, compared to the yield obtained form the water extract. The extraction yields of the single compounds were measured to be 0.13 and 0.014 Gomisin A and Gomisin N, respectively. Approximately, 90% of the growth of human stomach adenocarcinoma cancer cells was inhibited after adding 1.0 g/l of the ethanol extract. The growth of the human normal lung cell was limited to 24% after adding the ethanol extract. The water extract lowered the specific secretion of $TNF-\acute{a}$ and IL-6 from T cells, $10.3{\times}10^{-4}\;pg/cell\;and\;12.1{\times}10^{-4}\;pg/cell$, respectively, compared to the ethanol extracts. On the other hand, a treatment with the ethanol extract increased the specific secretion of $TNF-\acute{a}$ and IL-6 from human T cells, to $11{\times}10^{-4}\;pg/cell\;and\;14.3{\times}10^{-4}\;pg/cell$, respectively. The crude ethanol extract had the highest effect on the differentiation of human promyelocytic leukemia cells compared to the other extracts and Gomisin A and N. In general, the biological activities of the extracts gradually decreased as the purification process proceeded, which suggests that higher immunostimulatory activities can be maintained by adding the crude extracts of the fruits rather than by adding a single compound.

• Journal of Life Science
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• v.20 no.3
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• pp.430-436
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• 2010

In this study, the effects of dibenzocyclooctadiene on seed germination were investigated in pepper. Four $C_{18}$ dibenzocyclooctadiene lignans - schisandrin (1143.7 mg), schisandrin C (317.3 mg), gomisin A (261.4 mg) and gomisin N (213.4 mg) - were isolated from hexane extracts of the fruits of Schisandra chinensis. The molecular structures of the four lignans were elucidated based on spectroscopic analyses including 1D NMR experiments, and bi comparing their spectroscopic data with those of previous literatures. Seeds were immersed in $10^{-5}\;M$ schisandrin, $10^{-6}\;M$ schisandrin C and $10^{-7}\;M$ gomisin A and gomisin N for 1 hr and incubated at $25^{\circ}C$ in the dark for germination. Compared to untreated control, treatment with schisandrin C and gomisin A suppressed seed germination at 48 hrs after incubation, whereas treatment with gomisin N increased germination rate at 48 hrs after incubation. The results of the germination activity of the lignans from S. chinensis confirm their potential plant growth role, and the relative natural abundances of these metabolites suggest their potential use as natural plant growth regulators.

• Nutrition Research and Practice
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• v.17 no.1
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• pp.1-12
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• 2023

BACKGROUND/OBJECTIVES: Male hypogonadism is a condition where the body does not produce enough testosterone and significantly impacts health. Age, obesity, genetics, and oxidative stress are some physiological factors that may contribute to testosterone deficiency. Previous studies have shown many pharmacological benefits of Schisandra chinensis (S. chinensis) Baillon as an anti-inflammatory and antioxidant. However, the molecular mechanism of attenuating hypogonadism is yet to be well established. This research was undertaken to study the effects of S. chinensis extract (SCE) on testosterone deficiency. MATERIALS/METHODS: S. chinensis fruit was pulverized and extracted using 60% aqueous ethanol. HPLC analysis was performed to analyze and quantify the lignans of the SCE. RESULTS: The 2,2-diphenyl-2-picrylhydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) scavenging assays confirmed that the SCE and its major lignans (schisandrol A and gomisin N) inhibit oxidative stress. Effects of SCE analysis on the testosterone level under oxidative stress conditions revealed that both schisandrol A and gomisin N were able to recover the lowered testosterone levels. Through mRNA expression of TM3 Leydig cell, we observed that the SCE lignans were able to induce the enzymes involved in testosterone biosynthesis-related genes such as 3β-HSD4 (P < 0.01 for SCE, and P < 0.001 for schisandrol A and gomisin N), 17β-HSD3 (P < 0.001 for SCE, schisandrol A and gomisin N), and 17, 20-desmolase (P < 0.01 for schisandrol A, and P < 0.001 for SCE and gomisin N). CONCLUSIONS: These results support that SCE and its active components could be potential therapeutic agents for regulating and increasing testosterone production.

• Applied Biological Chemistry
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• v.32 no.4
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• pp.344-349
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• 1989

Eleven lignan compounds in fruits of Schisandra chinensis BAILLON were identified by gas chromatography/mass spectrometry(GC/MS). The GC/MS conditions were as followed: the GC column used was SPB-1 fused silica capillary $(0.25mm\;id{\times}30m,Supelco)$ and the column oven temperature was programmed from $200^{\circ}C$ to $300^{\circ}C$ at the rate of $4^{\circ}C$ per minute; the MS ionization voltage was 70eV (EI mode). The compounds identified were gomisin J $(M^+;\;388)$, deoxyschizandrin$(M^+;\;416)$, gomisin N $(M^+;\;400)$, schizandrin$(M^+;\;432)$, wuweizisu C $(M^+;\;384)$, gomisin A $(M^+;\;416)$, angeloylgomisin H $(M^+;\;500)$, tigloylgomisin H $(M^+;\;500)$, angeloylgomisin Q $(M^+;\;530)$, gomisin B $(M^+;\;514)$ and benzoylgomisin H $(M^+;\;522)$, peaks of which were separated well on the GC chromatogram.

• Mass Spectrometry Letters
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• v.11 no.2
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• pp.30-35
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• 2020

Schisandra chinensis is a traditional herbal medicine that is widely spread in Korea, Japan, and China. The fruits of S. chinensis Bailon, known as omija in Korea, have traditionally been used for the treatment of coughs, fatigues, and insomnia. Up to now, there have been several reports for the identification of major lignan compounds and their quantitation in S. chinensis extracts. To the best of our knowledge, however, there is no report on the analysis of lignans in omija wine and omija cheong (sugared omija or omija sugar syrup). In the present study, seven dibenzocyclooctadiene lignans (gomisin A, gomisin B, gomisin C, gomisin N, schisandrin, deoxyschisandrin, and wuweizisu C) in omija wine and omija cheong were analyzed and quantitated using liquid chromatography-tandem mass spectrometry. Among seven lignans, pharmacologically active gomisin A, schisandrin, and deoxyschisandrin, which are major components in fruits of S. chinensis, were the most abundant lignans in omija wine and cheong. The content of lignan in omija wine was in the order: schisandrin > gomisin A > deoxyschisandrin > gomisin N > gomisin B > gomisin C > wuweizisu C. The concentration of deoxyschisandrin and gomisin N in omija wine was approximately 2.0- and 6.0-fold higher than for omija cheong. Additionally, this study provided a systematic identification of lignans in omija wine and cheong and indicated that the omija wine and cheong might be of value for their dietary application.

• Journal of Ginseng Research
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• v.14 no.2
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• pp.217-220
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• 1990

Two lignanes, Comp.-I, mp 108-1$0^{\circ}C$ and Comp.-II 50-52$^{\circ}$were isolated from Korea ginseng extract by repeated column chromatographic purification. Comp.-I was identified as gomisin-N and Comp.-II as gomisin-A by spectrometric analysis, both of which have already been described as the anti-hepatotoxic lignan components of Schizandra chinesis Bail.