• 한국미생물·생명공학회지
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• 제37권1호
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• pp.42-48
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• 2009

본 연구에서는 여성의 질염을 일으키는 칸디다증 병원균에 대한 항진균 성분을 한약재에서 조사하였다. 한약재에 ethanol을 이용하여 phenol 성분을 추출하고, 추출물의 phenol 함량을 출정하였다. Ethanol농도에 따른 phenol성 물질의 용출량은 시료마다 다른 양상을 보이고 있는데, 40% ethanol 농도에서 가장 높은 용출량은 어성초, 지모, 금은화 등이며, 60% ethanol에서 가장 높은 용출량은 포공영, 작약 등이다. 황련은 80% ethanol 농도에서는 낮은 용출량을 보이나 다른 농도에서는 비슷한 용출량을 보이고 있고, 연교는 80% ethanol에서 높은 용출량을 보였다. 전자공여능은 ethanol 농도별 추출물에 따라 다르게 나타나고 있는데, 포공영은 80% ethanol 추출물 이상에서 전자공여 능을 보이며, 황련, 지모, 금은화는 100%의 ethanol추출물에서 전자공여능을 보였다. 한약재 추출물의 항균활성은 C. albicans는 황련 추출물 $200{\mu}g/mL$농도로 주입하였을 때 3mm의 저해환을 나타내었으며, C. tropicalis는 포공영 추출물을 $200{\mu}g/mL$ 농도로 주입시 2mm, 어성초 추출물을 $200{\mu}g/mL$ 농도로 주입시 2mm, 작약 추출물을 $200{\mu}g/mL$ 주입시 3 mm 저해환을 나타내었다. 황련 추출물은 50, 100, 150, $200{\mu}g/mL$ 농도로 주입시 2, 3, 6, 9mm의 저해환을 나타내었다. 추출물을 이용한 C. glabrata, C. parapsilesis, C. utils 3개 종에 대한 항균활성은 나타나지 않았다. 황련 추출물에서 항균성분은 TLC와 HPLC 분석을 통하여 berberin인 것으로 나타났다.

• 대한한방내과학회지
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• 제40권6호
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• pp.1294-1302
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• 2019

Objective: Glucagon-like peptide 1 (GLP-1), one of the gut peptide hormones, has an action to induce satiety, and its effect as an anti-obesity agent is known. Recently, it has been reported that many herbal medicines have an anti-diabetic effect through inhibition of DPP-4 enzyme and inducing of GLP-1 secretion. It is therefore suggested that GLP-1 may be effective for the treatment of obesity. In this study, we report a case of male obese patients treated with herbal medicine as a GLP-1 secretagogue. Methods: In this study, the patient took a fixed prescription of herbal medicine for 10 weeks and recorded his weight at each visit. Results: This prescription produced significant weight loss (BMI loss>5%). In the follow-up period after two weeks, the trend of weight loss was observed continuously. Conclusion: This prescription can be an alternative to ephedra herba-based obesity treatment.

• Genomics & Informatics
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• 제13권2호
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• pp.60-67
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• 2015

The leading cause of cancer mortality globally amongst the women is due to human papillomavirus (HPV) infection. There is need to explore anti-cancerous drugs against this life-threatening infection. Traditionally, different natural compounds such as withaferin A, artemisinin, ursolic acid, ferulic acid, (-)-epigallocatechin-3-gallate, berberin, resveratrol, jaceosidin, curcumin, gingerol, indol-3-carbinol, and silymarin have been used as hopeful source of cancer treatment. These natural inhibitors have been shown to block HPV infection by different researchers. In the present study, we explored these natural compounds against E6 oncoprotein of high risk HPV18, which is known to inactivate tumor suppressor p53 protein. E6, a high throughput protein model of HPV18, was predicted to anticipate the interaction mechanism of E6 oncoprotein with these natural inhibitors using structure-based drug designing approach. Docking analysis showed the interaction of these natural inhibitors with p53 binding site of E6 protein residues 108-117 (CQKPLNPAEK) and help reinstatement of normal p53 functioning. Further, docking analysis besides helping in silico validations of natural compounds also helped elucidating the molecular mechanism of inhibition of HPV oncoproteins.