
handle: 10481/24839 , 10045/8020
A relationship has been hypothesized between adverse effects on human and wildlife reproductive health and a number of chemical substances capable of altering hormonal homeostasis (Endocrine disrupting chemicals, EDCs). The endocrine and reproductive effects of these chemicals are believed to be due to their ability to: (1) mimic the effect of endogenous hormones, (2) antagonize the effect of endogenous hormones, (3) disrupt the synthesis and metabolism of endogenous hormones, and (4) disrupt the synthesis and metabolism of hormone receptors. Human exposure to EDCs may come from many sources and is not limited to populations at high risk. The life stage when the exposure occurs plays a very important role and the relative impact of exposure at different stage of development must be established. Mother-child exposure seems to be of greater importance than might at first have been thought. The accumulation of hormonal xenobiotics in fat tissue during the life of the mother may be a major source of exposure for the child, both during gestation and via breast feeding. The hazardous effects of continuous exposure to endocrine disrupters in humans demand investigation.
Numerosos estudios han asociado las patologías observadas en distintas especies animales y en el hombre con la exposición a contaminantes medio ambientales con actividad hormonal. Se ha acuñado el término de disruptores endocrinos (Endocrine Disrupting Chemicals / EDCs) para definir el conjunto de compuestos químicos que interaccionan con el sistema endocrino, sobre el que inducen efectos potencialmente debidos a su capacidad para:1) mimetizar la acción de las hormonas endógenas; 2) antagonizar la acción de las hormonas; 3) alterar su patrón de síntesis y metabolismo; o bien 4) modular los niveles de los receptores correspondientes.La exposición humana a disruptores endocrinos es universal y puede provenir de numerosas fuentes. Además, los compuestos acumulados en la grasa son transmitidos a la descendencia a través de la madre durante la gestación y después de la lactancia.Los efectos sobre la salud humana de la exposicición continua a los disruptores endocrinos necesitan ser investigados en más profundidad.
Environmental sciences, Disruptores endocrinos, Exposición humana, GE1-350, Enfermedad, Endocrine disruptors
Environmental sciences, Disruptores endocrinos, Exposición humana, GE1-350, Enfermedad, Endocrine disruptors
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