Year : 2017 | Volume
: 34 | Issue : 1 | Page : 5--9
Tumor necrosis factor-α promoter gene polymorphism (308 G/A) in the Egyptian patients with systemic lupus erythematosus
Ibrahim M Rageh1, Ahmed A Sharaawy2, Ali I Fouda3, Eman R Abdelgawad1, Walid A Abdel Halim1
1 Department of Clinical and Chemical Pathology, Faculty of Medicine, Benha University, Benha, Egypt
2 Department of Clinical and Chemical Pathology, National Liver Institute, Menoufia University, Menoufia, Egypt
3 Department of Rheumatology and Rehabilitation, Faculty of Medicine, Benha University, Benha, Egypt
Tumor necrosis factor-α (TNF-α) is a very important cytokine having different physiological and pathogenic effects that lead to tissue destruction. The polymorphism of the TNF-α promoter gene at position –308 has been thought as a genetic risk factor for systemic lupus erythematosus (SLE). Thus, we aimed in this study to evaluate the association between TNF-α gene polymorphism (308 G/A) and SLE in the Egyptian population and its relation to the activity and the clinical manifestations of SLE.
Participants and methods
A case–control study was performed on 50 female patients with SLE (mean age, 32.4 ± 8.6 years) and 50 female healthy volunteers (mean age, 31.9 ± 8.3 years) served as controls. Genotyping was carried out by PCR. The PCR products were digested by NcoI restriction enzyme.
TNF-α promoter gene polymorphism (rs1800629) GA and AA genotypes and A allele were significantly increased in the studied SLE patients when compared with healthy controls (P = 0.023 and 0.007, respectively). TNF-α genotypes showed significant differences between the various Systemic Lupus Erythematosus Disease Activity Index activity grades (P = 0.012). Moreover, GG genotype had a significantly lower incidence of renal disorders and persistent proteinuria when compared with AG or AA genotypes (P = 0.006 and 0.001, respectively). However, AA genotype showed a significantly higher incidence of neurologic disorders when compared with GG and AG genotypes (P < 0.001 and P = 0.026, respectively).
Our results indicate that TNF-α (–308 G/A) polymorphism may have a role in the susceptibility and pathogenesis of SLE in the Egyptian population.
Walid A Abdel Halim
Department Clinical and Chemical Pathology, Faculty of Medicine, Benha University, Benha 13512
|How to cite this article:|
Rageh IM, Sharaawy AA, Fouda AI, Abdelgawad ER, Abdel Halim WA. Tumor necrosis factor-α promoter gene polymorphism (308 G/A) in the Egyptian patients with systemic lupus erythematosus.Benha Med J 2017;34:5-9
|How to cite this URL:|
Rageh IM, Sharaawy AA, Fouda AI, Abdelgawad ER, Abdel Halim WA. Tumor necrosis factor-α promoter gene polymorphism (308 G/A) in the Egyptian patients with systemic lupus erythematosus. Benha Med J [serial online] 2017 [cited 2018 Jun 19 ];34:5-9
Available from: http://www.bmfj.eg.net/article.asp?issn=1110-208X;year=2017;volume=34;issue=1;spage=5;epage=9;aulast=Rageh;type=0