RESUMEN
Aim: To evaluate the effects of gene polymorphisms in the treatment of erythema nodosum leprosum with prednisone/thalidomide. Patients & methods: A total of 152 patients from different regions of Brazil were included. Generalized estimating equation was used to evaluate the influence of polymorphisms and haplotypes on the drug dose variation throughout the treatment. Results: An association between the genotype tuberculoid of polymorphism ABCB1 3435C>T (rs1045642; p = 0.02) and prednisone dose was found in the recessive model. An association between the haplotypes 1031T/-863C/-857C/-308A/-238G (p = 0.006) and 1031T/-863C/-857T/-308A/-238G (p = 0.040) of the TNF gene and the CYP2C19*2 polymorphism were also identified, in relation to thalidomide dosage variation over the course of treatment. Conclusion: This work presents the first pharmacogenetic report of association between gene polymorphisms and erythema nodosum leprosum treatment with prednisone/thalidomide.
Asunto(s)
Citocromo P-450 CYP2C19/genética , Eritema Nudoso/tratamiento farmacológico , Factor de Necrosis Tumoral alfa/genética , Subfamilia B de Transportador de Casetes de Unión a ATP/genética , Adulto , Brasil/epidemiología , Relación Dosis-Respuesta a Droga , Eritema Nudoso/genética , Eritema Nudoso/patología , Femenino , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Genotipo , Haplotipos/genética , Humanos , Masculino , Polimorfismo Genético , Prednisona/administración & dosificación , Prednisona/efectos adversos , Receptores de Glucocorticoides/genética , Talidomida/administración & dosificación , Talidomida/efectos adversosRESUMEN
INTRODUCTION:: This study evaluated leprosy rates in Rio Grande do Sul, an area with a historically low prevalence. However, recent studies are lacking. METHODS:: Data extracted from a National Database were analyzed for clinical features and compared to 1980s data. Tendency was assessed via stationarity analysis. RESULTS:: Between 1990 and 2011, 4,770 cases were reported (0.21/10,000 inhabitants; 95% CI = 0.19-0.24). Detection was slightly higher among males, 1.9% cases were among children and most multibacillary (74.7%) at diagnosis. CONCLUSIONS:: Leprosy is controlled in RS, but most cases are multibacillary. Early identification is important to avoid disabilities due to late diagnosis.
Asunto(s)
Lepra/epidemiología , Adolescente , Adulto , Brasil/epidemiología , Niño , Preescolar , Femenino , Humanos , Incidencia , Lactante , Recién Nacido , Masculino , PrevalenciaRESUMEN
Abstract INTRODUCTION: This study evaluated leprosy rates in Rio Grande do Sul, an area with a historically low prevalence. However, recent studies are lacking. METHODS: Data extracted from a National Database were analyzed for clinical features and compared to 1980s data. Tendency was assessed via stationarity analysis. RESULTS: Between 1990 and 2011, 4,770 cases were reported (0.21/10,000 inhabitants; 95% CI = 0.19-0.24). Detection was slightly higher among males, 1.9% cases were among children and most multibacillary (74.7%) at diagnosis. CONCLUSIONS: Leprosy is controlled in RS, but most cases are multibacillary. Early identification is important to avoid disabilities due to late diagnosis.