• 한국약용작물학회지
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• 제11권1호
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• pp.71-75
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• 2003

수집종의 리그난 분석결과 schizandrin, gomisin A, gomisin N의 평균함량은 1996년산 실생 6년생인 24개 계통에서 각각 평균 0.78%, 0.25%, 0.63%를 나타냈고, 1997년산 실생 7년생인 59개 계통에서는 각각 0.72%, 0.22%, 0.63%를 나타냈다. 리그난 함량은 수집종 및 연차간에 통계적으로 유의하고 범위가 큰 변이를 보였으며, 조사된 23개 계통 중 충주 143, 충주 453, 충주 532 계통은 비교적 높은 0.9% 이상의 3개년$(1995{\sim}1997)$ 평균 schizandrin 함량을 보였다. 연차별 schizandrin 함량의 변이계수가 낮으면서 0.8% 이상의 높은 함량을 나타낸 것은 충주 542, 충주 547, 충주 580 계통들이었다. 상관 분석에서 오미자 과실중과 리그난 함량과는 고도의 부의 상관을 보이고 리그난 성분들 간에는 고도의 정의 상관을 보였다.

• 한국약용작물학회지
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• 제19권6호
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• pp.414-420
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• 2011

We investigated antioxidant activity and lignan contents by harvesting times to expand use of Schisandra chinensis (Turcz.) Baillon. Total polyphenol and flavonoid contents of seed was higher than those of flesh but there is not much difference in harvesting times. As $RC_{50}$ value, that was, the concentration of sample required for 50% reduction of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical, was 13.7~24.2 ${\mu}g/m{\ell}$ in seed thus it showed a high antioxidant activity. Among lignan components, schizandrin content was the highest and followed by gomisin N and gomisin A in all of flesh and seed. Also these components in seed were 4~9 times more contained than those of flesh. All of them were decreased by harvesting times in flesh. But the contents of schizandrin and gomisin N were high in August 3rd and September 15th in seed, respectively. As the results, the seed of S. chinensis had high antioxidant activity and lignan contents so it could be potentially developed as a resource.

• 대한한의학회지
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• 제27권4호
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• pp.150-155
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• 2006

Object : This study investigated the quality inspection of Schizandra chinensis (Turcz.) Bail distributed in Korea. Methods: To evaluate the quality of these herbal medicines, we carried out TLC pattern analysis, purity, loss on drying, ash, acid-insoluble ash, essential oil contents, dilute ethanol-soluble, water-soluble, ether-soluble extracts and HPLC analysis. Results : As a result, TCL pattern analysis of schizandrin and gomisin A showed Rf=0.64 and 0.74, respectively. To measured content of schizandrin and gomisin A, we quantitatively analyzed using HPLC. The average contents of schizandrin and gomisin A were detected to be 0.60 (${\pm}$0.02)% and 0.12 (${\pm}$0.004)%, respectively. Discussion : As a result of this study, we suggest that the minimum content of schizandrin and gomisin A should be 0.5% and 0.1%, respectively. We could suggest that the minimum of essential oil content should be 0.6 ml.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.366-366
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• 2017

There are about 2 genera and 49 species of Schisandraceae all over the world which grow 2 genera and 5 species in korea. As'Schisandra'genus, S. chinensis, S. repanda, S. nigra and S. viridicarpa are distributed. As 'Kadsura' genus, there is K. japonica species. Although S. chinensis is often used for food and herbal medicine, 'Cheongsoon'is the only cultivar in korea. Therefore cultivar breeding is required for standardized production of Schisandra chinensis. To select superior lines, characteristics of collected varieties was investigated. These collections were from all the country including Mungyeong, Muju and Jangsu. In the case of 'Schisandra chinensis', analysis of chemical compound is very important. Because in 'Korean Pharmacopoeia', Schisandrin has to contain more than 0.7% of sum of Shizandrin, Gomisin A, Gomisin N as standard compound. According to the investigation, the weight of SC-154 was the highest one that was 99g of fresh fruit and 60g of dried fruit in the 100 granulas of it. As the control group, the weight of cultivar 'Cheongsoon'was 57g of fresh fruit and 40g of dried fruit. The chemical compounds such as Shizandrin A, Gomisin A, Gomisin N and Shizandrin C from the collections were analyzed by HPLC. As a result, all average of total content was 1.67% satisfied with the standard that is over 0.7%. Among them, SC-13, SC-22, SC-40 and SC-45 had more than 2.0% of compound. In this case, the content of Gomisin N was relatively higher than that of the other collections. It can be used for high content compound breeding. This above results indicate that these findings could be used for breeding superior Schisandra chinensis through selection of high quality resource.

• Natural Product Sciences
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• 제11권4호
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• pp.248-252
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• 2005

Schisandra chinensis Baill. (Shisandraceae) is used commonly in traditional Korean herbal medicine. One new dibenzocyclooctene lignan compound, benzoylgomisin Q, was found, for the first time, in the fruits of Schisandra chinensis Baill., together with five known lignan compounds; schisandrin, gomisin A, gomisin G, deoxyschisandrin, and gomisin N, using an ESI-positive MS-preparative HPLC auto-purification system. The structures of these compounds were determined via UV, MS, and NMR spectral studies.

• Applied Biological Chemistry
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• 제43권1호
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• pp.72-77
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• 2000

항경련 활성을 보인 오미자의 열매로부터 활성물질을 분리하기 위하여 MeOH로 추출하고, 추출물을 EtOAc, n-BuOH 및 물로 분배, 추출하였다. 얻어진 각 분획에 대하여 중추 신경계에서 억제성 신경전달물질로 알려진 ${\gamma}-aminobutyric$ acid(GABA)의 대사조절효소들인 succinic semialdehyde reductase (SSAR) 및 succinic semi-aldehyde dehydrogenase(SSADH)의 활성을 측정하였다. 활성 억제효과를 나타낸 EtOAc 분획으로부터 silica gel column comatography를 반복하여 sesquiterpene 및 sterol 배당체 각 1종, lignan화합물 4종을 분리, 정제하였다. 각각의 화학구조는 NMR, MS 등의 스펙트럼 데이터를 해석하여, chamigrenal, daucosterol, gomisin A, gomisin H, gomisin N 및 schizandrin으로 동정하였다. 각 화합물에 대하여 활성을 측정한 결과, schizandrin을 SSADH와 1시간 전처리하였을 때 효소의 활성은 65% 억제되었으며, daucosterol의 경우에는 같은 조건에서 SSAR의 활성을 80% 억제하는 것을 관찰할 수 있었다.

• 한국약용작물학회지
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• 제23권5호
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• pp.385-394
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• 2015

Background : Dibenzocyclooctadiene lignans are secondary metabolites present abundantly in the fruits belonging to the genus Schisandra. According to previous studies, Schisandra lignans exhibit anti-inflammatory, anti-cancer and anti-diabetic properties, as well as an inhibitory effect on platelet aggregation. Therefore, establishing the Korean "Omija" (Schisandra chinensis) as a lignan-rich source, in addition to identifying and quantifying the lignans, is extremely valuable. Methods and Results : Dibenzocyclooctadiene lignans were analyzed with liquid chromatography using diode array detection/mass spectrometry, from methanol extracts subsequently identified by a constructed chemical library of 50 lignans. A total of 27 components of lignan including gomisin S were identified, of which schisandrin, gomisin A, gomisin N, deoxyschisandrin, ${\gamma}$-schisandrin, and schisandrin C were identified as the major components in the Korean Omija, Schisandra chinensis. These compounds were divided into two groups, S-biphenyl and R-biphenyl based on the configurations of the stereoisomers structures with contents of 661.7 and 1350.1mg per 100 g dry weight, respectively. The total lignan content averaged 2011.4mg per 100 g dry weight, of which schisandrin and gomisin N comprised the majority (771.8 and 420.5mg per 100 g dry weight respectively). Conclusions : Lignans which are present in high quantities in the ripe fruit of Schisandra chinensis are important functional compounds that play a major role in the prevention and treatment of human diseases.

• 약학회지
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• 제56권5호
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• pp.293-298
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• 2012

The present study tested the effect of Schizandra chinensis lignan compounds, Gomisin A and Schizandrin, on the aggregation and dissociation of beta-amyloid $(A{\beta})_{1-42}$ to explore a possible therapeutic target for Alzheimer's disease. Gomisin A significantly inhibited the $A{\beta}_{1-42}$ aggregation in a dose dependent manner, but did not induced the dissociation of aggregated $A{\beta}_{1-42}$. On the other hand, Schizandrin significantly suppressed the aggregation and dissociation of $A{\beta}_{1-42}$. These results suggest that Gomisin A and Schizandrin, which are known as biologically active ingredients from Schizandra chinensis, may be potentially useful target molecules to develop a drug for the prevention or treatment of Alzheimer's disease.

• 생명과학회지
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• 제28권3호
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• pp.339-344
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• 2018

오미자는 전통적인 한약재로서 schizandrin과 gomisin A와 같은 다양한 생리활성물질을 함유하고 있는 것으로 알려져 있다. 본 연구에서는 오미자 박의 에탄올 추출물(PSC)과 schizandrin (SZ) 및 gomisin A (GA)에 의한 항염증 활성 및 그들의 작용기전 연구를 수행하였다. 먼저, PSC는 LPS에 의해 염증이 유도된 RAW264.7 세포에서 세포생존율에는 영향을 미치지 않고 농도의존적으로 nitric oxide (NO) 생성을 감소시켰다. PSC는 염증유발유전자인 iNOS와 COX-2의 발현을 감소시켰으나, $TNF-{\alpha}$의 발현에는 영향을 주지 않았다. 또한 오미자 박의 에탄올 추출물은 p38, ERK1/2 및 JNK의 총 단백질의 발현에는 영향을 주지 않으면서, 그들의 인산화를 감소시켰다. 이러한 결과는 PSC가 MAPK 신호를 저해함으로써 염증 반응을 조절할 수 있음을 시사한다. 또한 SZ와 GA도 LPS에 의해 염증이 유도된 RAW264.7 세포에서 세포 생존율에 영향을 미치지 않으면서 NO 생성을 감소시켰다. SZ은 iNOS 유전자의 발현만을 감소시킨 반면, GA는 iNOS와 COX-2 두 유전자의 발현을 모두 감소시켰다. 종합적으로 이러한 연구결과는 오미자 박 추출물, schizandrin 및 gomisin A에 의해 중재되는 항염증 활성 및 작용기전을 이해하는데 도움을 줄 것이다

• Natural Product Sciences
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• 제24권1호
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• pp.59-65
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• 2018

An isoform of NADPH oxidase (NOX), NOX2 is a superoxide-generating enzyme involved in diverse pathophysiological events. Although its potential as a therapeutic target has been validated, there is no clinically available inhibitor. Herein, NOX2-inhibitory activity was screened with the constituents isolated from Schisandra chinensis, which has been reported to have antioxidant and reactive oxygen species (ROS)-scavenging effects. Among the partitions prepared from crude methanolic extract, a chloroform-soluble partition showed the highest NOX2-inhibitory activity in PLB-985 cell-based NOX2 assay. A total of twenty nine compounds (1 - 29) were identified from the chloroform fraction, including two first isolated compounds; dimethyl-malate (25) and 2-(2-hydroxyacetyl) furan (27) from this plants. Of these constituents, two compounds (gomisin T, and pregomisin) exhibited an NOX2-inhibitory effect with the $IC_{50}$ of $9.4{\pm}3.6$, and $62.9{\pm}11.3{\mu}M$, respectively. They are confirmed not to be nonspecific superoxide scavengers in a counter assay using a xanthine-xanthine oxidase system. These findings suggest the potential application of gomisin T (6) and other constituents of S. chinensis to inhibit NOX2.