Effects of glucose variation on hexose monophosphate shunt and leucocyte respiratory burst in patients with type 2 diabetes.
- Author:
Huiyan ZENG
1
;
Ying CAO
;
Yaoming XUE
Author Information
- Publication Type:Journal Article
- MeSH: Blood Glucose; chemistry; Case-Control Studies; Diabetes Mellitus, Type 2; metabolism; Glucosephosphate Dehydrogenase; metabolism; Humans; Neutrophils; metabolism; Pentose Phosphate Pathway; Reactive Oxygen Species; metabolism; Respiratory Burst
- From: Journal of Southern Medical University 2014;34(8):1184-1187
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the effect of blood glucose instability on respiratory burst of leukocytes in patients with type 2 diabetes (T2DM).
METHODSForty-five patients with T2DM were divided into 3 groups after continuous glucose monitoring for 72 h with glucose wavy coefficient <1.5 (n=11), between 1.5 and 3.0 (n=19), and >3.0 (n=15). Peripheral blood neutrophils were isolated from the diabetic patients and normal control subjects for assay of glucose 6-phosphate dehydrogenase (G6PD) with a spectrophotometric method, detecting G6PD mRNA expression by real-time PCR, and determining reactive oxygen species level using the fluorescent probe DCFH-DA.
RESULTSCompared with the normal control group, the diabetic patients showed significantly lowered G6PD activity (F=78.739, P<0.05) and ROS level (F=384.962, P<0.05) but significantly increased G6PD mRNA expression (F=269.612, P<0.01). These changes were significantly correlated with the blood glucose wavy coefficients.
CONCLUSIONThe fluctuation of blood glucose in T2DM patients can decrease G6PD activity and lead to functional decline of the respiratory burst.
