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Colombia Médica

versão On-line ISSN 1657-9534


MATEUS, Heidi Eliana et al. Carrier frequency of F508del mutation of cystic fibrosis in medical students from Universidad del Rosario, Bogotá, Colombia. Colomb. Med. [online]. 2007, vol.38, n.4, pp.352-356. ISSN 1657-9534.

Introduction: Cystic fibrosis (CF) is the most frequent autosomical recessive disorder in Caucasian population with an incidence of 1 in 2000 newborns. The disease is caused by mutations in the cftr gene, but the most common mutation is F508del, which accounts for 66% of CF chromosomes worldwide and a carrier frequency for Caucasian population of 1 in 25. Objective: To determine the carrier frequency of the F508del mutation in 110 unrelated, healthy students from the Facultad de Medicina, Universidad del Rosario. Methods: The presence of F508del mutation using PCR and heteroduplex analysis was determined. Results: Only four heterozygotes for F508del mutation were discovered. This represents a carrier frequency of 1 in 27 students. Conclusions: This estimated frequency of F508del carriers is higher than expected, encouraging further screening in normal control individuals from different regions of Colombia.

Palavras-chave : Cystic fibrosis; deltaF508; Carrier; Colombia.

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