The Male Androgen System encompasses the entire physiological network responsible for the synthesis, transport, regulation, and action of androgen hormones in the male body. This system, predominantly centered on testosterone and dihydrotestosterone (DHT), governs the development of male secondary sexual characteristics, maintains muscle mass, bone density, and influences mood and libido. Proper function is essential for overall male health, metabolic integrity, and vitality throughout the lifespan.
Origin
The term is rooted in endocrinology and physiology, specifically describing the hormonal control mechanisms unique to the male sex. “Androgen” comes from the Greek andrós (man) and genēs (producing), literally meaning “producer of man.” The system refers to the Hypothalamic-Pituitary-Gonadal (HPG) axis, which regulates testicular androgen production and is the primary control loop.
Mechanism
Gonadotropin-Releasing Hormone (GnRH) from the hypothalamus stimulates the pituitary to release Luteinizing Hormone (LH), which then signals the Leydig cells in the testes to synthesize testosterone. Testosterone is either directly active or converted to the more potent DHT by the 5-alpha reductase enzyme in target tissues. This entire cascade is tightly controlled by negative feedback loops to maintain homeostatic hormone levels and prevent overproduction.
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