• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.262.2-263
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• 2002

The fruits of various Actinidia species are known to be used as a folk remedy for treatment of various inflammatory and analgesic ailments. Effects of the ethanol extracts and fractions from the fruits of Actinidia polygama (Sieb. et Zucc.) Maxim (Actinidiaceae) were studied using various in vivo and in vtro models of inflammation in mice and rats. (omitted)

• 생약학회지
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• 제36권1호통권140호
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• pp.26-33
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• 2005

Korean folk medicine 'Da Rae Ip' has been used to cure intestinal catarrh, stomach cancer and acute gastritis. The botanical origin of the crude drug has never been studied pharmacognostically. To clarify the botanical origin of 'Da Rae Ip', the morphological and anatomical characteristics of the leaves of Actinidia species growing in Korea and Japan; i.e. A. arguta, A. arguta var. rufinervis, A. kolomikta, A. polygama, A. rufa were studied. As a result, it was clarified that 'Da Rae Ip' was the leaf of Actinidia arguta and Actinidia polygama.

• Natural Product Sciences
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• 제18권1호
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• pp.26-31
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• 2012

Actinidia arguta (Actinidiaceae) has been reported to have several pharmacological effects such as anti-inflammatory, anti-allergic, and anti-oxidant activities. The present study investigated the protective activity of an ethanol extract from the leaf and stem of A. arguta against glutamate-induced neurotoxicity using cultured rat cortical neurons. Exposure of cultured cortical neurons to $500{\mu}M$ glutamate for 12 h triggered neuronal cell death. A. arguta inhibited glutamate-induced neuronal death and apoptosis, which were measured by a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide (MTT) assay and Hoechst 33342 staining, respectively. The increase of pro-apoptotic proteins, Bax and c-caspase-3, in glutamate-treated neurons was significantly inhibited by treatment with A. arguta. A. arguta also inhibited $500{\mu}M$ glutamate-induced elevation of intracellular calcium concentration ($[Ca^{2+}]_i$) and reactive oxygen species (ROS) generation, which were measured by fluorescent dyes, Fluo-4 AM and $H_2DCF$-DA, respectively. These results suggest that A. arguta may prevent glutamate-induced apoptotic neuronal death by inhibiting $[Ca^{2+}]_i$ elevation and ROS generation and, therefore, may have a therapeutic role for the prevention of neurodegeneration in cerebral ischemic diseases.

• Journal of Ecology and Environment
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• 제44권3호
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• pp.143-154
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• 2020

Background: Korean wild boars (Sus scrofa coreanus Heude), because of their adaptability, are a widespread large mammal; however, they sometimes cause problems by invading farms and eating the crops, creating insufficiencies of some foods in South Korea. To understand the diet composition of Korean wild boars according to sex and body size, we collected their feces from Mt. Jeombongsan, Seoraksan National Park, South Korea. The sizes of fecal samples were measured, and genomic DNA was extracted from the samples. We amplified specific loci targeting plants (rbcL and trnL) and animals (COI) to detect the food sources of this omnivore and amplified the ZF and SRY regions to determine the sex. Results: In the wild boar feces, Rosaceae and Bryophyte were the most frequently detected plant food sources at the family level and Diptera and Haplotaxida were the most frequently detected animal food sources at the order level. As a result of sex determination, the sex ratio of wild boars collected in the Mt. Jeombongsan area was approximately 1:1. Our result suggested that there is no significant difference between the diet composition of male and female boars. Based on the average cross-sectional area of the feces, the top 25% were classified into the large body size group and the bottom 25% were classified into the small body size group. The large body size group mainly preferred Actinidiaceae, and the small body size group most frequently consumed Fagaceae. The diet of the large body size group was more diverse than the small body size group. Conclusions: Our results showed that the wild boars preferred Rosaceae, especially Sanguisorba and Filipendula, as plant food sources, and Diptera and Coleoptera of Insecta as animal food sources. Based on the results, the dietary preferences of wild boar appear to be distinguished by not their sex but their body size. Our study could help to elucidate the feeding ecology and population structure of wild boar, as well as address conservation and management issues.

• 식물분류학회지
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• 제43권4호
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• pp.285-295
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• 2013

한국산 다래나무속은 4종 2변종, 총 6분류군으로 분류하여 왔으나, 이들을 구분하는 분류학적 형질에 대한 이견이 존재함에 따라 형태학적, 해부학적, 화분학적 형질을 토대로 종의 한계를 재고하고자 하였다. 아울러, 다양한 자연집단을 관찰하였으며, 각국의 표본관에 소장된 기준표본을 포함한 건조표본들을 관찰하였다. 연구 결과, 잎의 두께, 털의 형태와 색깔, 엽형 등은 중요한 형질로 여겨왔으나 폭넓은 변이로 인해 식별형질로 부적합하였으며, 수의 형태, 동아의 돌출 정도, 인편 수, 약의 색깔, 열매 모양, 숙과기 등은 유용한 형질이었다. 털다래나무와 녹다래나무는 털의 형질에 기초하여 분류되었으나, 이들 두 분류군에서 나타나는 털은 다래나무에서도 관찰되므로 모종에 통합하였다. 결과적으로, 한국산 다래나무속 식물을 총 4종으로 정리하였고 이에 따른 검색표를 제시하였으며 이명과 기준표본을 정리한 기재문을 작성하였다.