• PMID: 21254931
• Gene Name: CFTR
• Condition: Congenital bilateral absence of the vas deferens (CBAVD), idiopathic obstructive azoospermia
• Association: The protocol for identification of mutations in cases of CBAVD in developing countries would have to include a different set of mutations than those reported from western countries.
• Mutation: pT438A, c.4095+30insCT, c.-737G>A, and c.2909-92A>G, F508delp.E217Gfs*11 and p.A1285V
• Population size: 85
• Population details: 85 (35 CBAVD patients, 50 controls)
• Sex: Male
• Infertility type: Male infertility
• Other associated phenotypes: Congenital bilateral absence of the vas deferens (CBAVD), idiopathic obstructive azoospermia

Mutation studies in the CFTR gene in Asian Indian subjects with congenital bilateral absence of vas deferens: report of two novel mutations and four novel variants

Sachdeva K, Saxena R, Majumdar A, Chadha S, Verma IC.

BACKGROUND: Congenital bilateral absence of vas deferens (CBAVD) is a form of male infertility in which mutations occur in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. The molecular basis of CBAVD is not completely understood, especially in developing countries. METHODS: We characterized the mutations/variants in the CFTR gene by single strand conformation polymorphism followed by sequencing in 35 CBAVD patients. None of the patients had systemic manifestations of cystic fibrosis. Fifty normal subjects were studied as controls. RESULTS: Mutations/variants in the CFTR gene were found in all CBAVD patients. Five mutations and 10 variants were detected in 35 patients. The most frequent severe mutation was F508del (34.2%) and the most common variant was IVS8-5T (54.2%). Two novel severe mutations (p.E217Gfs*11 and p.A1285V) and four novel variants (pT438A, c.4095+30insCT, c.-737G>A, and c.2909-92A>G) were detected. CONCLUSION: The protocol for identification of mutations in cases of CBAVD in developing countries would have to include a different set of mutations than those reported from western countries. FAU - Sachdeva, Kabir AU - Sachdeva K AD - Sir Ganga Ram Hospital, Guru Gobind Singh Indraprastha University, Kashmere Gate, New Delhi, India. kabirtaurus@yahoo.com FAU - Saxena, Renu AU - Saxena R FAU - Majumdar, Abha AU - Majumdar A FAU - Chadha, Sudhir AU - Chadha S