PMID- 17543235 OWN - NLM STAT- MEDLINE DCOM- 20070711 LR - 20131121 IS - 1165-158X (Electronic) IS - 0145-5680 (Linking) VI - 53 IP - 5 DP - 2007 May 30 TI - Hyperglycemia induced oxidative stress in type-1 and type-2 diabetic patients with and without nephropathy. PG - 68-78 AB - Diabetes mellitus is associated with hyperglycemia, hyperlipoproteinaemia and oxidative stress at cellular level. The aim of the present study was to determine the relationship between anti-oxidative system of cells and hyperglycemia induced reactive oxygen species (ROS) in type-1 and type-2 diabetic patients with and without nephropathy. ROS are anihilated by an intracellular enzymatic system such as glutathione peroxidase (GPx) and catalase and the reduced glutathione (GSH) is the major antioxidant of erythrocytes and plasma. Total of 200 diabetic patients and 50 of normal healthy control individuals were recruited for the present study. Erythrocytes and plasma activities of GPx, catalase and GSH were measured as a part of anti-oxidative system and TBARS for the marker of oxidative stress in type-1 diabetes mellitus (T1DM), type-2 diabetic mellitus (T2DM), type-1 diabetes with nephropathy (T1DN) and type-2 diabetes with nephropathy (T2DN) patients. GPx, catalase and GSH activity was significantly decreased, whereas TBARS level was significantly increased in both type-1 and type-2 diabetic groups with and without nephropathy than the normal healthy individuals. T1DM patients had shown decreased level of GSH and activity of anti-oxidative enzymes than T2 DM patients, whereas TBARS level was higher in T1DM than T2DM patients, suggesting that T1DM patients are more prone to secondary complications such as nephropathy than T2DM patients. Obtained results have shown positive correlation of GSH with GPx and catalase activity in erythrocytes and plasma, whereas, negative correlation was observed between TBARS and catalase in erythrocytes and plasma indicative of the relationship of various anti-oxidative enzymes and key antioxidant such as GSH in erythrocytes and plasma responsible for increased oxidative stress. FAU - Dave, G S AU - Dave GS AD - Department of Biosciences, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India. FAU - Kalia, K AU - Kalia K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070530 PL - France TA - Cell Mol Biol (Noisy-le-grand) JT - Cellular and molecular biology (Noisy-le-Grand, France) JID - 9216789 RN - 0 (Reactive Oxygen Species) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - EC 1.11.1.6 (Catalase) RN - EC 1.11.1.9 (Glutathione Peroxidase) RN - GAN16C9B8O (Glutathione) SB - IM MH - Adult MH - Aged MH - Catalase/blood MH - Diabetes Mellitus, Type 1/*blood/pathology MH - Diabetes Mellitus, Type 2/*blood/pathology MH - Diabetic Neuropathies/*blood/pathology MH - Erythrocytes/metabolism MH - Female MH - Glutathione/blood MH - Glutathione Peroxidase/blood MH - Humans MH - Hyperglycemia/*blood/complications MH - Male MH - Middle Aged MH - *Oxidative Stress MH - Reactive Oxygen Species/blood MH - Regression Analysis MH - Thiobarbituric Acid Reactive Substances/metabolism EDAT- 2007/06/05 09:00 MHDA- 2007/07/12 09:00 CRDT- 2007/06/05 09:00 PHST- 2006/10/06 00:00 [received] PHST- 2007/02/02 00:00 [accepted] PHST- 2007/06/05 09:00 [pubmed] PHST- 2007/07/12 09:00 [medline] PHST- 2007/06/05 09:00 [entrez] AID - 68 [pii] PST - epublish SO - Cell Mol Biol (Noisy-le-grand). 2007 May 30;53(5):68-78.