title: Hypoglycemic activities of commonly-used traditional Chinese herbs.
abstract: The α-amylase and α-glucosidase inhibition activity of 92 Traditional Chinese Medicinal (TCM) herbs, which are permitted to be used as food ingredients, were evaluated using the high throughput assay developed in our laboratory. Among these herbs, twenty-seven of them possessed significant α-amylase inhibition activities ranging from 2.4 to 349.2 μmol AE/g (AE = acarbose equivalent) with inhibition concentrations at 50% inhibition (IC₅₀) from 16.0 to 2342.2 μg/mL, respectively. In addition, they showed α-glucosidase inhibition activities ranging from 0.5 to 31.6 μmolAE/g (IC₅₀ from 49.0 to 3385.5 μg/mL). The extracts of Rhizoma fagopyri dibotryis (Jīnqiáomài), Rosa rugosa (Méiguīhuā), Caulis polygoni multiflori (Shǒuwūténg), Fructus amomi (Shārén), Rhizoma alpiniae officinarum (Gāoliángjiāng), Folium ginkgo (Yínxìngyè) and Cortex cinnamomi (Ròuguì) showed the better inhibitory activities against both α-amylase and α-glucosidase. Our results illustrated that these food grade herbs are potent natural hypoglycemic agents and can be used as active ingredients for low glycemic index food production or TCM herbal formulations for controlling hyperglycemia.
authors.affiliation: College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China.
authors.forename: Shengbao
authors.initials: S
authors.lastname: Feng
authors.forename: Lixia
authors.initials: L
authors.lastname: Song
authors.forename: Yuancai
authors.initials: Y
authors.lastname: Liu
authors.forename: Fuli
authors.initials: F
authors.lastname: Lai
authors.forename: Gang
authors.initials: G
authors.lastname: Zuo
authors.forename: Guangyuan
authors.initials: G
authors.lastname: He
authors.forename: Mingjie
authors.initials: M
authors.lastname: Chen
authors.forename: Dejian
authors.initials: D
authors.lastname: Huang
mesh_terms: D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D065089:Glycoside Hydrolase Inhibitors; D057166:High-Throughput Screening Assays; D007004:Hypoglycemic Agents / Q000494:pharmacology*; D000516:alpha-Amylases / Q000037:antagonists & inhibitors*
chemical_list: D004365:Drugs, Chinese Herbal; D065089:Glycoside Hydrolase Inhibitors; D007004:Hypoglycemic Agents; D000516:alpha-Amylases