Vasopressin is a peptide hormone. It is derived from a preprohormone precursor that is synthesized in the hypothalamus and stored in vesicles at the posterior pituitary.
Most of it is stored in the posterior pituitary to be released into the blood stream; however, some of it is also released directly into the brain. Within hypothalamic neurons, the hormone is packaged in secretory vesicles with a carrier protein called neurophysin, and both are released upon hormone secretion.
In most mammals, including humankind, it exists as the arginine form, a synthetical planning of which embodies used since an antidiuretic and in examinations of hypothalamo-neurohypophysial-renal mathematical function incoming the diagnosis of telephone exchange diabetes insipidus. Arginine vasopressin (AVP), also known as vasopressin, argipressin or antidiuretic hormone (ADH), is a hormone found in most mammals, including humans. A lysine form occurs in pigs; the synthetic pharmaceutical preparation is lypressin.
Vasopressin is a hormone secreted by cells of the hypothalamic nuclei and stored in the posterior pituitary since release equally requisite; it contracts bloodshed vessels, raising the blood pressure, and increases peristalsis, exerts some influence on the uterus, and influences resorption of water by the kidney tubules, resulting in assiduousness of urine.
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