What is Central Diabetes Insipidus? Is It Dangerous?

 

Natural Diabetes Cure

Central diabetes insipidus (DI) is characterized by decreased secretion of antidiuretic hormone (ADH), also known as arginine vasopressin (AVP), that results in polyuria and polydipsia by diminishing the patient's ability to concentrate urine. Diminished or absent ADH can be the result of a defect in one or more sites involving the hypothalamic osmoreceptors, supraoptic or paraventricular nuclei, or the supraopticohypophyseal tract. In contrast, lesions of the posterior pituitary rarely cause permanent diabetes insipidus because ADH is produced in the hypothalamus and still can be secreted into the circulation.

 

Nephrogenic diabetes insipidus is characterized by a decrease in the ability to concentrate urine due to a resistance to ADH action in the kidney.1 Nephrogenic diabetes insipidus can be observed in chronic renal insufficiency, lithium toxicity, hypercalcemia, hypokalemia, and tubulointerstitial disease. The rare hereditary form of nephrogenic diabetes insipidus is transmitted as an X-linked genetic defect of the V2 receptor gene. A rare autosomal variant is caused by mutation in the aqua porin gene AQP2, a water-channel exclusively expressed in the collecting ducts of the kidney.