Q: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
The insertion of AQP2 into the apical membrane is caused by this hormone's GPCR stimulating the production of cAMP through the Gs protein. With CRH, this hormone is produced in parvocellular neurons and, also with it, stimulates the secretion of ACTH. The movement of this hormone is facilitated by neurophysin II. Deficiency of this hormone causes central diabetes insipidus. A syndrome of inappropriate secretion of this hormone normally results in hyponatremia. This nonapeptide is released from the posterior pituitary and is structurally similar to oxytocin. When bound to its V1 receptor, this hormone promotes vasoconstriction, and it increases the permeability of the distal convoluted tubules. For 10 points, identify this hormone that is downregulated by ethanol, thus making you have to pee a lot.
A:
Science