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  • Title: Association of TGFB, but not IL10, single nucleotide polymorphisms with febrile seizures.
    Author: Shahrokhi A, Zare-Shahabadi A, Soltani S, Soleimani F, Vameghi R, Konjkav AR, Karimi P, Katibeh P, Vafaei M, Zoghi S, Ashrafi MR, Rezaei N.
    Journal: Seizure; 2015 Jul; 29():148-52. PubMed ID: 26076859.
    Abstract:
    PURPOSE: Febrile seizures (FS) are the most common convulsive event in children. Inflammatory elements and genetics seem to have major roles in their pathogenesis. METHODS: Seventy nine patients with FS were enrolled in this study and compared with 140 controls. Cytokine genotyping was performed, using polymerase chain reaction with sequence-specific primers. The allele and genotype frequency of three single nucleotide polymorphisms (SNPs) within the IL-10 gene at -1082, -819 and -592 positions (rs1800896, rs1800871, rs1800872), and two SNPs within the TGFB at codons 10 and 25 (rs1982037, rs1800471) were determined. RESULTS: No significant difference was detected in allelic frequency of IL-10 at -1082, -819 and -592 positions (rs1800896, rs1800871, rs1800872) and TGFB at codon 25 (rs1800471), between patients and controls. A significant negative association was observed at the codon 10/CT (rs1982037) in the patient group (OR, 0.5; 95%CI, 0.27-0.93; p=0.026). Further, a negative association was detected in patients with simple FS at same position (OR, 0.41; 95%CI, 0.18-0.93; p=0.03), thus revealing a protective effects in FS patients. There was no significant difference in allelic and genotype frequency between simple and complex FS samples. Furthermore, haplotype analysis revealed significant difference in frequency of TGFB/TC haplotype in comparison between complex FS patients and controls (p=0.048). CONCLUSION: Certain alleles, genotypes, and haplotypes in TGFB genes were over represented in patients with FS, which possibly could predispose individuals to this disease.
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