24Mar, 2018

Sterile or Infertile and Endocrine Disruptors

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Dr. Angel Cunill Clinical Andrology Madrid, Spain.   Endocrine disruptors, also called endocrine distusbers, do not kill, but it does have effects on our hormones, so that can cause thyroid problems, fertility, impotence, behavioral abnormalities, feminization and stunted growth. Hypogonadism is defined as testosterone deficiency associated with signs or symptoms, poor sperm production or both. It may be due to a disorder of the testes (primary hypogonadism) or hypothalamic-pituitary axis (secondary hypogonadism). Both options can be congenital or acquired as a result of aging, disease, other substances or other factors. […]
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24Mar, 2018

Estrogens in men

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Dr. Angel Cunill Clinical Andrology Madrid The estrogens are the main group of female sex hormones. Among other functions, they are responsible for the development of the reproductive system of secondary sexual characteristics and regulation of the menstrual cycle in women. They are synthesized primarily in the ovaries and the placenta. Also in the adrenal glands, both men and women, although in much smaller quantities. Chemically, estrogens are steroid hormones derived from cholesterol. From cholesterol male sex hormones are synthesized, and from these estrogens. Aromatase converts testosterone into estradiol. The […]
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24Mar, 2018

Metabolismo de la testosterona

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El testículo posee dos funciones básicas: endocrina (producción de hormonas) y exocrina (producción de espermatozoides) El 85-90% del interior del volumen testicular está constituido por túbulos seminíferos y su epitelio germinal, lugar de producción de los espermatozoides (de 10 a 20 millones de gametos al día), y tan sólo el 10-15% está ocupado por el intersticio, donde se produce la testosterona. El testículo del hombre adulto produce, aproximadamente, de 5 a 7 mg de testosterona al día. La secreción de testosterona se ajusta a un ritmo circadiano, con mínimos a […]
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