Antihyperglycemic Effect of Oolong Tea in Type 2 Diabetes.

Autor: Hosoda, Kazuaki, Ming-Fu Wang, Mei-Ling Liao, Chin-Kuang Chuang, Iha, Miyuki, Clevidence, Beverly, Yamamoto, Shigeru
Předmět:
Zdroj: Diabetes Care; Jun2003, Vol. 26 Issue 6, p1714-1718, 5p, 2 Charts, 2 Graphs
Abstrakt: OBJECTIVE — To determine the efficacy of oolong tea for lowering plasma glucose in type 2 diabetic patients in Miaoli, Taiwan. RESEARCH DESIGN AND METHODS — A total of 20 free-living subjects who had type 2 diabetes and took hyperglycemic drugs as prescribed were enrolled in the present study. Subjects consumed oolong tea (1,500 ml) or water for 30 days each in a randomized crossover design. Tea was not consumed for 14 days prior to treatments. RESULTS — Relative to initial concentrations, oolong tea markedly lowered concentrations of plasma glucose (from 229 ± 53.9 to 162.2 ± 29.7 mg/dl, P < 0.001) and fructosamine (from 409.9 ± 96.1 to 323.3 ± 56.4 µmol/1, P < 0.01), whereas the water control group had not changed (208.7 ± 61.0 vs. 232.3 ± 63.1 mg/dl for glucose and from 368.4 ± 85.0 to 340.0 ± 76.1 p, µmolA for fructosamine). CONCLUSIONS — Oolong tea may be an effective adjunct to oral hypoglycemic agents in the treatment of type 2 diabetes. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index