RESUMEN
Background: There is an association between arsenic exposure and prostatic cancer mortality. Aim: To analyze and to compare the serum levels of total prostatic specific antigen (TPSA) in asymptomatic men of a rural zone, exposed and not exposed to high concentrations of arsenic (As) in drinking water. Material and Methods: The study included 161 men that were subjected to a clinical evaluation, serum TPSA determination and a trans rectal ultrasonography. Exposed and non-exposed subjects were divided in groups GA, GB and GC according to TPSA levels (<4 ng/ml, 4.1-10 ng/ml and >10.1 ng/ml respectively). Results: Exposed and non-exposed subjects had similar TPSA levels. Among exposed subjects, 88.2, 8,8 and 3% were ascribed to groups GA, GB and GC respectively. The figures for non-exposed subjects were 90. 6, 6,3 and 3,1%. The area under the receiver operating characteristic (ROC) curve for TPSA in exposed and non-exposed subjects was 0.64 (95% confidence intervals (CI) 0.40-0.9) and 0.71 (95% CI 0.6-0.8) respectively. Conclusions: No differences in TPSA levels between subjects exposed and non-exposed to arsenic were observed in this study.
Asunto(s)
Humanos , Masculino , Persona de Mediana Edad , Intoxicación por Arsénico/sangre , Agua Potable/química , Exposición a Riesgos Ambientales/estadística & datos numéricos , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata/diagnóstico , Argentina , Exposición a Riesgos Ambientales/efectos adversos , Exposición a Riesgos Ambientales/análisis , Métodos Epidemiológicos , Población Rural/estadística & datos numéricos , Biomarcadores de Tumor/sangreRESUMEN
BACKGROUND: There is an association between arsenic exposure and prostatic cancer mortality. AIM: To analyze and to compare the serum levels of total prostatic specific antigEn (TPSA) in asymptomatic men of a rural zone, exposed and not exposed to high concentrations of arsenic (As) in drinking water. MATERIAL AND METHODS: The study included 161 men that were subjected to a clinical evaluation, serum TPSA determination and a trans rectal ultrasonography. Exposed and non-exposed subjects were divided in groups GA, GB and GC according to TPSA levels (<4 ng/ml, 4.1-10 ng/ml and >10.1 ng/ml respectively). RESULTS: Exposed and non-exposed subjects had similar TPSA levels. Among exposed subjects, 88.2, 8,8 and 3% were ascribed to groups GA, GB and GC respectively. The figures for non-exposed subjects were 90. 6, 6,3 and 3,1%. The area under the receiver operating characteristic (ROC) curve for TPSA in exposed and non-exposed subjects was 0.64 (95% confidence intervals (CI) 0.40-0.9) and 0.71 (95% CI 0.6-0.8) respectively. CONCLUSIONS: No differences in TPSA levels between subjects exposed and non-exposed to arsenic were observed in this study.