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Adipsia
Adipsia is a condition that can affect both humans and other animals and involves an absence of thirst.〔http://www.britannica.com/EBchecked/topic/5956/adipsia〕 Its underlying causes vary but have included anomalies involving the hypothalamus, pituitary and corpus collosum. Although Diabetes insipidus usually involves polydipsia, it can also rarely occur not just in the absence of polydipsia but in the presence of such diminished thirst as to fit hypodipsia or adipsia. While adipsia is rare, and may occur in the absence of any structural lesions to the hypothalamus, it may also be seen medically in association with hypothalamus/pituitary involvement in Diabetes Insipidus (Adipsic Diabetes Insipidus) and/or hypernatremia or following pituitary/hypothalamus surgery. ==Testing== Initial testing for adipsia involves electrolyte, blood urea nitrogen and creatinine levels, serum and urine osmolality, blood hormone levels, like vasopressin. In patients who have defects in thirst regulation and vasopresin secretion, serum vassopresin levels are low or absent.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Adipsia」の詳細全文を読む
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