کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2051893 1074213 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inhibition of hepatic glucose 6-phosphatase system by the green tea flavanol epigallocatechin gallate
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Inhibition of hepatic glucose 6-phosphatase system by the green tea flavanol epigallocatechin gallate
چکیده انگلیسی

Effect of 5–100 μM epigallocatechin gallate (EGCG) on hepatic glucose 6-phosphatase (G6Pase) system was investigated. EGCG inhibited G6Pase in intact but not in permeabilized rat liver microsomes, suggesting the interference with the transport. However, EGCG did not hinder microsomal glucose 6-phosphate (G6P) uptake. Instead, it increased the accumulation of radioactivity after the addition of [14C]G6P, presumably due to a slower release of [14C]glucose, the product of luminal hydrolysis. Indeed, EGCG was found to inhibit microsomal glucose efflux. Since G6Pase activity is depressed by glucose in a concentration-dependent manner, we concluded that EGCG inhibits G6Pase through an elevated luminal glucose level.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 581, Issue 8, 17 April 2007, Pages 1693–1698
نویسندگان
, , , , , , ,