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SD계 흰쥐에서 마황 추출물의 아급성 경구 독성 시험 연구
최동기 ( Dong Gi Choi ),심경준 ( Kyung Jun Shim ),최봉재 ( Bong Jae Choi ),박수연 ( Soo Yeon Park ),장문석 ( Mun Seog Chang ),박성규 ( Seong Kyu Park ) 대한본초학회 2008 大韓本草學會誌 Vol.23 No.4
Objectives: Ephedrae herba, also known as Ma-huang, is a traditional Korean medicinal herb. It has been used to treat asthma, nose and lung congestion, and fever with anhidrosis for centuries. Recently, Ma-huang was used as a source of ephedrine in many dietary supplements for weight reduction in the United States. The objective of this study was to investigate the subacute toxicity of ephedrae herba extract in rats. Methods: SPF Sprague-Dawley male rats were administered orally with ephedrae herba extract for 4 weeks as several doses(0, 125, 250, 500, 1,000, and 2,000 mg/kg). We examined number of deaths, clinical signs, body weights and gross findings for experimental period. Results: No dead animals were found during the experimental period. In addition, no differences were found between control and treated groups in clinical signs, hematology, serum biochemistry, and other findings. Conclusions: In conclusion, above data suggest that no observed adverse effect level of ephedrae herba extract in SD rats might he over 2,000 mg/kg/day in this study.
양웅모,김향미,장문석,박완수,김원남,김산웅,최동기,이학철,김윤경,박성규,Yang, Woong-Mo,Kim, Hyang-Mi,Chang, Mun-Seog,Park, Wan-Su,Kim, Won-Nam,Kim, San-Woong,Choi, Dong-Gi,Lee, Hak-Chul,Kim, Yun-Kyung,Park, Seong-Kyu 대한한의학방제학회 2006 大韓韓醫學方劑學會誌 Vol.14 No.2
The natural plants were screened for new cosmetic materials. Many parts of Nelumbo nucifera has been investigated for anti-wrinkling and anti-furrowing effects. The leaves. flowers and stamens of Nelumbo nucifera were extracted with ethanol or distilled water. The effects of cell viability and $H_2O_2-induced$ cytotoxicity were studied on CCD-986sk human fibroblast cell line by MTT assay. We measured various effects related to skin such as the synthesis of MMP-1 and type I procollagen. The ethanol extract of Nelumbo nucifera leaves (ENL) at concentrations of 30 ${\mu}g/ml$ showed maximum cell viability on CCD-986sk cells by 129.70%. and $H_2O_2-induced$ cytotoxicity was blocked by ENL (5. 10. 20. 30. and 40 ${\mu}g/ml$) concentration-dependently. The synthesis of MMP-1 and type I procollagen were positive in ENL. These results suggest that ENL has anti-oxidant and anti-furrowing effects.