Abstract:
Introduction:Genetic factors may play a role in the susceptibility of intracerebral hemorrhage (ICH). The present case-control study hypothesized that genetic polymorphisms in tumor necrosis factor- α (TNF-α) gene may affect the risk of ICH. Materials and Methods:In this study, we investigated the association of four single nucleotide polymorphisms (-308G/A, +488G/A, -857C/T, and -1031T/C) within TNF-α gene promoter and their haplotypes with the risk of ICH in a North Indian population. Genotyping was determined by using the SNaPshot method for 100 ICH patients and 100 age and sex-matched ICH-free controls. Conditional logistic regression analysis with adjusting multiple demographic and risk factor variables was used to calculate the strength of association between TNF-α gene polymorphisms and risk of ICH. Haplotypes were reconstructed using PHASE 2.0, and patterns of linkage disequilibrium (LD) analysis were performed using Haploview version 4.2 software. Results:TNF-α +488G/A gene polymorphism was found to be independently associated with the risk of ICH under dominant [GG + GA vs. AA] (OR = 3.1; 95% CI = 1.2-8.2; P = 0.001) and allelic [G vs. A] (OR = 2.2; 95% CI = 1.2-4.2; P = 0.007) models. However, no significant association between -308G/A, -857C/T, and -1031T/C gene polymorphisms and risk of ICH was observed. Haplotype analysis showed that 308A-488G-857C-1031T and 308G-488A-857T-1031T haplotypes were significantly associated with an increased risk of ICH. Strong LD was observed for + 488G/A and -857C/T TNF-α polymorphisms (D' = 0.72, r2= 0.01). Conclusion:Our findings suggest that the TNF-α +488G/A polymorphism may be an important risk factor for ICH, whereas -308G/A, -857C/T, and -1031T/C gene polymorphisms may not be associated with risk of ICH in North Indian population.
journal_name
Neurol Indiajournal_title
Neurology Indiaauthors
Kumar P,Misra S,Kumar A,Faruq M,Vivekanandhan S,Srivastava AK,Prasad Kdoi
10.4103/0028-3886.279665subject
Has Abstractpub_date
2020-01-01 00:00:00pages
78-83issue
1eissn
0028-3886issn
1998-4022pii
ni_2020_68_1_78_279665journal_volume
68pub_type
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