Review of Pituitary Gland Dysfunction and Diseases

One of the most significant endocrine glands in the human body, the pituitary secretes hormones that affect the functioning of other glands, helping to regulate a wide range of physiological processes. The infundibulum connects the pituitary gland to the hypothalamus, and it is situated in the sella turcica, a bony chamber near the base of the brain. The anterior lobe, or adenohypophysis, is the largest portion of the pituitary gland and is made up of secretory cells that produce hormones like growth hormone (GH), adrenocorticotropic hormone (ACTH), milk-stimulating hormone (prolactin), thyroid-stimulating hormone (TSH), and the reproductive hormones (FSH and LH). Two hormones are secreted by the posterior lobe (posterior pituitary-neurohypophysis): oxytocin, which is involved in childbirth and milk production, and antidiuretic hormone (ADH), which maintains water balance. These hormones affect water and salt balance, growth, metabolism, reproduction, and stress management. Health issues like dwarfism, gigantism, hyperprolactinemia, and syndromes like Cushing's and Sheehan syndrome can result from any disruption in pituitary function.