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GHRH Axis

Meaning

The GHRH Axis, or Growth Hormone-Releasing Hormone Axis, is the primary neuroendocrine pathway that precisely regulates the synthesis and pulsatile secretion of Growth Hormone (GH) from the anterior pituitary gland. This axis begins with the hypothalamic release of GHRH, which serves as the principal stimulatory signal to the pituitary. The overall system is crucial for promoting somatic growth during childhood and maintaining healthy body composition, bone density, and metabolic function throughout adult life. Clinical evaluation of this axis is essential for diagnosing and managing conditions related to growth hormone deficiency or excess.