No Cover Image

Journal article 449 views

Association between the rs4880 superoxide dismutase 2 (C>T) gene variant and coronary heart disease in diabetes mellitus / Sarah, Prior; Danielle, Jones; Danielle, Grant

Diabetes Research and Clinical Practice, Volume: 90, Issue: 2, Pages: 196 - 201

Swansesa University Authors: Sarah, Prior, Danielle, Jones, Danielle, Grant

Full text not available from this repository: check for access using links below.

DOI (Published version): 10.1016/j.diabres.2010.07.009

Abstract

Mitochondrial superoxide dismutase 2 (SOD2) is an endogenous anti-oxidant enzyme. The rs4880 gene variant results in a C>T substitution, influencing SOD enzymatic activity. This variant has been associated with micro- and macro-vascular complications in diabetes mellitus. Our aim was to exam...

Full description

Published in: Diabetes Research and Clinical Practice
Published: Elsevier 2010
Online Access: http://www.sciencedirect.com/science/article/pii/S0168822710003864
URI: https://cronfa.swan.ac.uk/Record/cronfa10728
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: Mitochondrial superoxide dismutase 2 (SOD2) is an endogenous anti-oxidant enzyme. The rs4880 gene variant results in a C>T substitution, influencing SOD enzymatic activity. This variant has been associated with micro- and macro-vascular complications in diabetes mellitus. Our aim was to examine the association between this variant and coronary heart disease (CHD) risk in a cross-sectional sample of subjects with diabetes.776 Caucasian subjects with diabetes were genotyped. CHD risk, oxidised-LDL and plasma total anti-oxidant status (TAOS) were analysed in relation to genotype. In females, the TT genotype was associated with CHD (CC/CT/TT: No CHD vs. CHD: 22.4/56.0/21.6% vs. 12.0/50.0/38.0%, p = 0.03; for CC/CT vs. TT, p = 0.01). The odds ratio for CHD associated with the TT genotype compared to CC/CT was 2.22 [95%CI: 1.17–4.24], p = 0.01. The TT genotype was also associated with significantly lower plasma TAOS. In males, no association was observed between genotype and CHD risk, but CHD was significantly associated with age, lower HDL, higher triglycerides, higher BMI and cigarette smoking.The TT genotype of this variant is associated with increased CHD risk and lower plasma anti-oxidant defences in females with diabetes. This modest genotype-effect is not apparent in males where traditional risk factors may play a greater role.
Keywords: Superoxide dismutase; Gene variant; Oxidative stress; Diabetes; CHD; rs4880; Mitochondria; Total anti-oxidant status
College: Swansea University Medical School
Issue: 2
Start Page: 196
End Page: 201