Effects of intermittent high glucose on oxidative stress in endothelial cells.

Abstract:

:The objective of this study is to explore the mechanism of oxidative stress induced by intermittent high glucose in porcine iliac endothelial cells (PIECs). The PIECs were exposed to intermittent or constant high glucose for 3 or 6 days, and the mean fluorescent intensity (MFI) was measured via intracellular reactive oxygen species (ROS) captured by flow cytometry. The NADPH oxidase activity was measured by chemiluminescence with lucigenin. Intermittent high glucose induced a greater over-production of ROS than constant high glucose in PIECs; the NADPH oxidase activity was increased under both constant and intermittent high glucose conditions, being more marked in the latter (P < 0.05). In conclusion, intermittent high glucose induced more ROS in PIECs than constant high glucose, this effect seemed to be, at least in part related to the enhanced activation of NADPH oxidase. Glucose fluctuation may be involved in the development of vascular complications.

journal_name

Acta Diabetol

journal_title

Acta diabetologica

authors

Ge QM,Dong Y,Zhang HM,Su Q

doi

10.1007/s00592-009-0140-5

subject

Has Abstract

pub_date

2010-12-01 00:00:00

pages

97-103

eissn

0940-5429

issn

1432-5233

journal_volume

47 Suppl 1

pub_type

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