SciELO - Scientific Electronic Library Online

 
vol.140 número4Factores de riesgo cardiovascular en estudiantes de la Universidad Austral de ChileValores normales de olfato, hiposmia y anosmia en población chilena sana según la batería "sniffin sticks" índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Revista médica de Chile

versión impresa ISSN 0034-9887

Resumen

CACERES, Dante D; ALVARADO, Sergio A; MARTINEZ, Paulina  y  QUINONES, Luis A. Relation of genetic variants of CYP2A6 with tobacco dependence and smoking habit in Chilean subjects: A pilot study. Rev. méd. Chile [online]. 2012, vol.140, n.4, pp. 436-441. ISSN 0034-9887.  http://dx.doi.org/10.4067/S0034-98872012000400003.

Background: Genetic and metabolic factors associated with nicotine metabolism may be related to smoking behavior. Aim: To assess the prevalence of allelic and genotype variants of CYP2A6 in a sample of Chilean subjects and to evaluate their relationship with smoking and tobacco dependence. Material and Methods: The genotype frequencies for *2, *3 and *4 of CYP2A6*1 (wild type) gene were determined by polymerase chain reaction (PCR) in 54 volunteers. Addiction to tobacco was evaluated using the Fagerstrom Test. The association between the presence of allelic variants of CYP2A6 and smoking and tobacco dependence was evaluated with chi square test. Results: The prevalence of *1, *2 (wt/*2), *3 (wt/*3 or *31*3) and *4 (del/del) were 92.6%, 3.7%, 0% y 3.7%, respectively. No significant association was observed between being a carrier of a variant genotype of CYP2A6 and smoking or tobacco dependence. Conclusions: In this sample of Chilean individuals we did not find a relation between any CYP2A6 genotype with smoking or tobacco dependence.

Palabras clave : CYP2A6; Genetic; Polymorphisms; Protein; human; Tobacco use disorder.

        · texto en Español     · pdf en Español