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首页> 外文期刊>Biochemistry >New Glucosidase Inhibitors from an Ayurvedic Herbal Treatment for Type 2 Diabetes: Structures and Inhibition of Human Intestinal Maltase-Glucoamylase with Compounds from Salacia reticulata
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New Glucosidase Inhibitors from an Ayurvedic Herbal Treatment for Type 2 Diabetes: Structures and Inhibition of Human Intestinal Maltase-Glucoamylase with Compounds from Salacia reticulata

机译:阿育吠陀草药治疗2型糖尿病的新的葡萄糖苷酶抑制剂:结构和对人肠道马耳他酶-葡糖淀粉酶与网状鳞ala的化合物的抑制作用。

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An approach to controlling blood glucose levels in individuals with type 2 diabetes is to targetnR-amylases and intestinal glucosidases using R-glucosidase inhibitors acarbose and miglitol. One of thenintestinal glucosidases targeted is the N-terminal catalytic domain of maltase-glucoamylase (ntMGAM), onenof the four intestinal glycoside hydrolase 31 enzyme activities responsible for the hydrolysis of terminal starchnproducts into glucose.Here we present the X-ray crystallographic studies of ntMGAMin complex with a newnclass of R-glucosidase inhibitors derived from natural extracts of Salacia reticulata, a plant used traditionallynin Ayuverdic medicine for the treatment of type 2 diabetes. Included in these extracts are the activencompounds salacinol, kotalanol, and de-O-sulfonated kotalanol. This study reveals that de-O-sulfonatednkotalanol is the most potent ntMGAMinhibitor reported to date (Ki=0.03 μM), some 2000-fold better thannthe compounds currently used in the clinic, and highlights the potential of the salacinol class of inhibitors asnfuture drug candidates.
机译:控制2型糖尿病患者血糖水平的一种方法是使用R-葡萄糖苷酶抑制剂阿卡波糖和米格列醇靶向nR-淀粉酶和肠道葡萄糖苷酶。然后靶向的肠葡萄糖苷酶之一是麦芽糖酶-葡糖淀粉酶(ntMGAM)的N末端催化域,这是四个肠糖苷水解酶31酶活性的酶,负责将末端淀粉酶产物水解为葡萄糖。与一种新的R-葡萄糖苷酶抑制剂的复合物,该抑制剂衍生自网状ala草的天然提取物,这是一种传统上用于治疗2型糖尿病的传统Ayuverdic药物的植物。这些提取物中包括活性化合物salacinol,kotalanol和去O磺化的taloanol。这项研究表明,迄今为止,据报道脱O-磺化n-金属萘醇是最有效的ntMGAM抑制剂(Ki = 0.03μM),比目前临床上使用的化合物高约2000倍,并突显了柳杉醇类抑制剂作为候选药物的潜力。

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