title: Malondialdehyde and coenzyme Q10 in platelets and serum in type 2 diabetes mellitus: correlation with glycemic control.
abstract: This study investigated the level of platelet malondialdehyde (MDA) as a marker of oxidative stress and coenzyme Q10 (CoQ10) as an index of antioxidant capacity in patients with type 2 diabetes mellitus and their relation to glycemic control. The study group consisted of 28 patients with type 2 diabetes mellitus (10 men and 18 women) with mean age of 48 +/- 2 years. Ten healthy individuals, age and sex matched with the patients, were used as a control group. Laboratory investigations in the form of lipid profile, glycosylated hemoglobin, plasma MDA, platelet MDA and plasma CoQ10 were assessed for all patients and controls. The study revealed that plasma and platelet MDA, as a marker of oxidative stress, were significantly higher in diabetic patients than in controls. The level of CoQ10, as antioxidant capacity, was significantly lower in diabetic patients than in controls. There was a negative correlation between plasma CoQ10 concentrations and glycosylated hemoglobin. Type 2 diabetic patients are at increased risk of oxidative stress manifested by increased plasma MDA as well as platelet MDA and decreased CoQ10, and this oxidative stress increases with poor glycemic control.
authors.affiliation: Clinical and Chemical Pathology Department, National Research Center, Cairo, Egypt. elghorouryeman@yahoo.com
authors.forename: Eman A
authors.initials: EA
authors.lastname: El-ghoroury
authors.forename: Hala M
authors.initials: HM
authors.lastname: Raslan
authors.forename: Ehsan A
authors.initials: EA
authors.lastname: Badawy
authors.forename: Gamila S
authors.initials: GS
authors.lastname: El-Saaid
authors.forename: Mervat H
authors.initials: MH
authors.lastname: Agybi
authors.forename: Ibrahem
authors.initials: I
authors.lastname: Siam
authors.forename: Sohair I
authors.initials: SI
authors.lastname: Salem
mesh_terms: D000975:Antioxidants / Q000032:analysis; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000628:therapy; D005260:Female; D006442:Glycated Hemoglobin / Q000032:analysis; D006801:Humans; D008297:Male; D008315:Malondialdehyde / Q000097:blood*; D008875:Middle Aged; D018384:Oxidative Stress; D012307:Risk Factors; D014451:Ubiquinone / Q000031:analogs & derivatives* / Q000097:blood
chemical_list: D000975:Antioxidants; D006442:Glycated Hemoglobin; D008315:Malondialdehyde; D014451:Ubiquinone; C024989:coenzyme Q10