RESUMEN

El objetivo de este estudio fue evaluar el desarrollo testicular y describir la calidad del parénquima testicular de machos cabríos alimentados con pasto, maíz molido y agua obtenidos de campos contaminados con residuos de minería. Se evaluó la concentración de plomo, arsénico y cadmio en sangre y tejido testicular, así como otros indicadores como testosterona, el parénquima testicular, la concentración espermática y porcentaje de espermatozoides malformados. Se encontró mayor concentración de cadmio (Cd) en el parénquima testicular, posiblemente debido a la mayor capacidad de bioacumulación de este metal. El promedio de concentración de testosterona fue de 0.16 mg/dL. El parénquima testicular presentó vacuolización del citoplasma, degeneración del epitelio germinativo con escasas células de Sertoli y Leydig, así como ausencia de espermatogénesis y espermatozoides. La concentración espermática estuvo por debajo de lo reportado como normal. La concentración de espermatozoides y testosterona pudo variar debido a un bajo conteo de células de Leydig y Sertoli. El consumo de alimento y agua contaminados con residuos de minería, permiten que metales pesados como cadmio y arsénico se acumulen en los testículos afectando negativamente el parénquima testicular, pero no el tamaño testicular. (AU)

The aim is to evaluate the testicular development and described the quality of the testicular parenchyma of male goats consuming grass, ground corn and water obtained from fields contaminated with mining residues. The concentration of lead, arsenic and cadmium in blood and testicular tissue was evaluated as well as other indicators such as testosterone concentration, testicular parenchyma, sperm concentration and abnormalities sperm. A higher concentration of cadmium (Cd) were found in the testicular parenchyma, possibly due to the increased bioaccumulation capacity of this metal. The average testosterone concentration was 0.16 mg/dL. The testicular parenchyma presented vacuolization of the cytoplasm degeneration of the germinative epithelium with few Sertoli and Leydig cells, as well as absence of spermatogenesis and spermatozoa. The sperm concentration was below that was reported as normal. The concentration of sperm and testosterone could vary due to a low number of Sertoli and Leydig cells. The intake of food and water contaminated with mining residues, allow heavy metals such as cadmium and arsenic to accumulate in the testicles negatively affect testicular parenchyma, but not testicular size in male goats. (AU)

Asunto(s)

RESUMEN

Neste trabalho é analisada a influência que a Medicina Legal teve na delimitação do conceito de perversão, e esboçada outra abordagem, que identifica o perverso com uma entidade do imaginário social cuja função é promover a coesão da coletividade em torno de e contra si - um bode expiatório. Busca-se deslocar a pesquisa em direção aos mecanismos e necessidades psíquicas e sociais que fomentam a psicodinâmica da expiação, ou o engendramento de bodes expiatórios.

Cet article a comme but d'analyser l'influence de la Médecine Légale sur la délimitation de l'idée de la perversion, ainsi que d'élaborer une nouvelle approche qui identifie le pervers comme une entité de l'imaginaire social dont la fonction est de renforcer la cohésion de la collectivité à travers et contre elle-même - le bouc émissaire. Cette recherche porte sur les mécanismes et les besoins psychiques et sociaux qui fomentent la psychodynamique de l'expiation, soit la genèse des boucs émissaires.

The influence of legal medicine on the delimitation of the concept of perversion is analyzed here. In the process, a different approach is described, one that identifies the pervert as a figure of social imagery whose function is to bring about social cohesion around and against itself - the scapegoat. The focus of research moves toward mental and social mechanisms, as well as needs that stimulate the psychodynamics of expiation, in other words, in the engendering of scapegoats.

Asunto(s)