Nephrogenic Diabetes Insipidus Pathophysiology
Causes of nephrogenic diabetes insipidus familial or genetic causes resulting from mutation in the aqp2 gene that codes for the aquaporin 2 protein.
Nephrogenic diabetes insipidus pathophysiology. The final urine composition is determined in the last tubular segment. Key points nephrogenic diabetes insipidus ndi is caused by inability of the kidneys to concentrate urine by reabsorbing water in the collecting duct ndi can be inherited x linked or autosomal. In nephrogenic diabetes insipidus ndi inability of the kidneys to respond to avp results in functional aqp deficiency. Consequently affected patients have constant diuresis resulting in large volumes of dilute urine.
This also causes them to keep pushing fluids out of the body. In nephrogenic diabetes insipidus the kidneys just ignore the adh that is present in the body. The pituitary gland is producing the right levels of this hormone but the kidneys fail to respond as if there was no adh present. Lithium a drug most commonly taken for bipolar disorder.
Nephrogenic diabetes insipidus is a disorder of water balance. Pathophysiology diagnosis and management of nephrogenic diabetes insipidus pubmed healthy kidneys maintain fluid and electrolyte homoeostasis by adjusting urine volume and composition according to physiological needs. The body normally balances fluid intake with the excretion of fluid in urine. This genetic mutation is has an autosomal.
Up to 20 of people taking lithium will develop nephrogenic. Other medicines including demeclocycline declomycin ofloxacin floxin orlistat alli xenical and others. In most people the body balances the fluids you drink with the amount of urine. Causes of nephrogenic diabetes insipidus in adults include.