title: CFTR Gene Mutations and Asthma in Indian Children: A Case-Control Study.
abstract: Cystic Fibrosis Trans membrane conductance regulator (CFTR) gene is an asthma susceptibility gene. In the present study we investigated the possible association of CFTR gene mutations in Indian asthmatic children as compared to controls. The study included 250 asthmatics and 250 age and sex matched controls. Case to control ratio for sample size was 1:1. Genotyping was performed for 24 CFTR gene mutations by ARMS-PCR and PCR-RFLP method. Among 24 CFTR gene mutations, heterozygous allele of R553X mutation was found in 4 (1.6 %) asthmatic cases and 2 (0.8 %) controls. Value of FVC and FEV1/FVC ratio were significantly lower in heterozygous individuals (p value <0.05). No significant difference was observed in the genotype and allele frequency of R553X mutation (OR = 1.339, 95 % CI = 0.755-2.374, p value = 0.685). Furthermore, all wild type homozygous alleles were observed in remaining 23 CFTR gene mutations. Our data concludes that R553X mutation was not significantly associated in Indian asthmatic children.
authors: Department of Pediatrics and Translational Medicine Unit, King George's Medical University, Lucknow, India.
authors: Pratibha
authors: P
authors: Dixit
authors: Department of Pediatrics and Translational Medicine Unit, King George's Medical University, Lucknow, India.
authors: Shally
authors: S
authors: Awasthi
authors: Department of Pediatrics and Translational Medicine Unit, King George's Medical University, Lucknow, India.
authors: Nutan
authors: N
authors: Maurya
authors: Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India.
authors: Sarita
authors: S
authors: Agarwal
authors: Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India.
authors: M
authors: M
authors: Srinivasan
keywords: Asthma; CFTR gene; Mutations; North India
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