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Journal articles
Lack of effect of tumor necrosis factor-alpha-308 G/A polymorphism on severity of liver fibrosis in Tunisian hepatitis C virus (HCV)-infected patients
Abstract : Objectives. - Tumor necrosis factor alpha (INF-alpha) plays a key role in the immune response. An elevated plasma level of INF-alpha was repeatedly observed in patients with active liver injury or cirrhosis regardless of the aetiology. The G/A transition at position -308 in the promoter region have been shown to influence TNF-alpha expression. In this study, we aimed to evaluate the impact of TNF-alpha -308 G/A functional polymorphism on fibrosis severity in Tunisian Hepatitis C Virus (HCV)-infected patients. Methods. - TNF-alpha -308 G/A polymorphism was evaluated by polymerase chain reaction (PCR) amplification followed by Restriction Fragment Length Polymorphism (RFLP) method in 53 chronic hepatitis C patients Single-nucleotide polymorphism (SNP) frequencies were compared with regard to liver fibrosis severity as assessed by the METAVIR scoring system (F1-F2; n=22 versus F3-F4; n=31). Results. - The genotype distribution of the INF-alpha -308 G/A polymorphism among the HCV-infected patients was as follows : GG : 67.9%, GA: 32.1%, AA: 0%. With regard to fibrosis score, no significant differences in TNF-alpha genotype distribution were observed between F1-F2 and F3-F4 patients (p=0.15) Conclusion. - No significant association between TNF-alpha -308 polymorphism and and the severity of liver fibrosis was found in our Tunisian cohort.
https://hal-riip.archives-ouvertes.fr/pasteur-01375285
Contributor : Institut Pasteur Tunis <>
Submitted on : Wednesday, December 21, 2016 - 9:24:45 AM
Last modification on : Thursday, October 22, 2020 - 2:50:03 PM
Contributor : Institut Pasteur Tunis <>
Submitted on : Wednesday, December 21, 2016 - 9:24:45 AM
Last modification on : Thursday, October 22, 2020 - 2:50:03 PM