Combined GSTM1 and GSTT1 null genotypes are strong risk factors for atherogenesis in a Serbian population



Título del documento: Combined GSTM1 and GSTT1 null genotypes are strong risk factors for atherogenesis in a Serbian population
Revue: Genetics and molecular biology
Base de datos: PERIÓDICA
Número de sistema: 000417810
ISSN: 1415-4757
Autores: 1
2
1
3
4
5
6
Instituciones: 1University of Belgrade, Department of Human Genetics and Prenatal Diagnostics, Belgrado. Serbia
2Dedinje Cardiovascular Institute, Belgrado. Serbia
3University of Belgrade, Department of Statistics, Belgrado. Serbia
4Clinical Center of Serbia, Clinic of Cardiology, Belgrado. Serbia
5Clinical Center of Serbia, Emergency Center, Belgrado. Serbia
6University of Belgrade, Department of Human Genetics, Belgrado. Serbia
Año:
Periodo: Mar
Volumen: 41
Número: 1
Paginación: 35-40
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés Oxidative stress (OS) plays an important role in atherogenesis and since glutathione S-transferases (GSTs) provide protection against OS, we have tested the hypothesis that deletion polymorphisms in two GSTs (GSTM1 and GSTT1) may affect the risk of developing atherosclerosis. A total of 382 individuals (200 patients with atherosclerosis and 182 healthy controls) were included in this association study. Genomic DNA was isolated from peripheral blood cells or from buccal epithelial cells and genotyping was performed using multiplex-PCR or real-time PCR methods. GSTM1 null genotype was significantly more frequent in atherosclerotic patients than in controls (52.0% vs 34.1%) and individuals with the GSTM1 null genotype had an approximately 2-fold increase in atherosclerosis risk (OR: 2.1, 95%CI=1.39-3.17, P=0.0004). GSTT1 null genotype alone did not show a statistically significant effect on atherosclerosis risk modulation, but the association approached significance (OR: 1.57, 95%CI=0.94-2.64, P=0.08). The combined analysis showed that the presence of both genes had a protective effect against atherosclerosis (OR=0.55, 95%CI=0.37-0.83, P=0.005) while double null genotypes led to a robust atherosclerosis risk increase (OR: 8.14, 95%CI= 2.41-27.51, P < 0.0001). This study demonstrated that the GSTM1 null and combined GSTM1/GSTT1 null genotypes are susceptibility factors for development of atherosclerosis in a Serbian population
Disciplinas: Medicina,
Química
Palabras clave: Sistema cardiovascular,
Bioquímica,
Genética,
Aterosclerosis,
Polimorfismo genético,
Glutatión S-transferasa,
Estrés oxidativo,
Población Serbia
Keyword: Cardiovascular system,
Biochemistry,
Genetics,
Atherosclerosis,
Genetic polymorphism,
Glutathione S-transferase,
Oxidative stress,
Serbian population
Texte intégral: Texto completo (Ver PDF)