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울릉도 섬더덕 추출물의 급여가 제2형 당뇨동물의 지질대사 개선에 미치는 영향
윤원갑,배현지,김유정,권오준,임무혁,조현덕,김태완 한국식품저장유통학회 2014 한국식품저장유통학회지 Vol.21 No.1
The present study was designed to investigate the antihyperlipidemic effect of Coconopsis lanceolata extract in C57BL/6J mice. The mice were divided into four groups: normal diet group (ND), high fat diet group (HFD), positive control group with 0.05% metformin (PC), Coconopsis lanceolata extract group (UCL). After 5 weeks of feeding, average body weight of the UCL group mice was slightly decreased, while that of the HFD group significantly increased) Also, liver and adipose tissue weights in the UCL group significantly increased. The levels of trigliceride (TG) and total in the plasma of UCL-supplemented group were significantly lower than those of high fat diet group. On the other hand, HDL-cholesterol level was increased. Expression level of proteins related with adipogenesis such as SREBP-1c, ACC, and FAS in the liver of the UCL group mice was much lower comparing with the HFD group mice. In conclusion, the results showed that the Coconopsis lanceolata extract possesses significant antihyperlipidemic effects in C57BL/6J mice.
카바릴과 석회유황합제의 양봉꿀벌(Apis mellifera)과 서양뒤영벌(Bombus terrestris)에 대한 엽상잔류독성 평가
김동원(Dongwon Kim),윤원갑(Won kap Yun),정철의(Chuleui Jung) 한국양봉학회 2014 韓國養蜂學會誌 Vol.29 No.4
Pollination is the important natural process for fruiting. However, too high fruit bearing leads to lower quality fruit production. Thus, the flower and fruit thinning is becoming crucial. The use of the chemical agents such as carbaryl and lime sulfur is increasing because of the labor and cost benefit. We tested the foliage residual toxicity of two chemicals against the honey bee and bumble bee along with DAT (days after treatment) on buckwheat. Results indicated lower toxic effect of lime sulfur on both honey bee and bumble bee. Carbaryl showed low toxic only on bumble bee but high toxic on honey bee. Residual toxicities were higher than 60% even until 21 DAT. Foliar residues were 180, 110 and 18 ppm of carbaryl at 1, 10 and 18 DAT, respectively. This study suggests that lime sulfur is relatively safe to both bees and carbaryl is less toxic to bumble bee, B. terrestris but highly toxic to honeybee, A. mellifera even until 21 DAT.