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門派: 殺豬拔毛派(萌主)
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註冊: 2001/12/06
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 Message  查看  搜尋  通訊錄  複製  引用  回覆 | [第 13 樓] |
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Comparison of the antiinflammatory effects of Drosera rotundifolia and Drosera madagascariensis in the HET-CAM assay.
abstract
The antiinflammatory effects of ethanol and aqueous extracts from Drosera rotundifolia and from Drosera madagascariensis were compared in vivo in the HET-CAM assay. Both extracts from D. rotundifolia and the ethanol extract from D. madagascariensis showed remarkable efficacy at doses of 500 microg/pellet. The inhibition of the inflammation by the extracts was stronger than that by 50 microg hydrocortisone/pellet. In contrast, there was only a very weak effect observed at a dose of 500 microg/pellet of the water extract from D. madagascariensis. The chemical analyses of the extracts showed that the effect cannot be attributed to naphthoquinones, but might be due to flavonoids. Ellagic acid obviously plays an important role in the antiangiogenic effect of the Drosera extracts.
source
Paper DH, Karall E, Kremser M, Krenn L. Phytother Res. 2005, 19: 323-326.
link
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16041727
標題
以HET-CAM分析法來比較毛氈苔D. rotundifolia和D. madagascariensis的抗發炎效果
摘要
我們利用體內HET-CAM分析法來比較毛氈苔D. rotundifolia和D. madagascariensis之乙醇及水性萃取物的抗發炎效果。D. rotundifolia的兩種萃取物及D. madagascariensis的乙醇萃取物在500 μg/pellet的劑量下具有顯著的藥效，而且這些萃取物對發炎的抑制效果比起氫化可體松在50 μg/pellet的劑量下更來得有效。相較之下，D. madagascariensis的水性萃取物在500 μg/pellet劑量下的藥效則非常微弱。化學分析的結果顯示，此藥效並非是來自於naphthoquinone類，而可能是來自於黃酮類。鞣花酸則對毛氈苔萃取物的抗血管新生效果上扮演了重要的角色。
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 2006/01/13 09:50am  IP: 已設定保密 | [本文共 1784 位元組]  |
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