Final answer:
Central diabetes insipitus is caused by a deficiency of vasopressin, while nephrogenic diabetes insipitus is caused by a problem with the kidneys' response to vasopressin.
Step-by-step explanation:
Central and nephrogenic diabetes insipitus are two different types of diabetes insipitus.
Central diabetes insipitus is caused by a deficiency of vasopressin, a hormone produced by the hypothalamus and released by the pituitary gland. This deficiency can be due to damage or dysfunction in the hypothalamus or pituitary gland. People with central diabetes insipitus have decreased levels of vasopressin, which leads to excessive urine production and increased thirst.
Nephrogenic diabetes insipitus, on the other hand, is caused by a problem with the kidneys' response to vasopressin. In this type of diabetes insipitus, the kidneys do not respond properly to vasopressin, resulting in the inability to reabsorb water and increased urine production. Unlike central diabetes insipitus, the levels of vasopressin in the body may be normal or even elevated in nephrogenic diabetes insipitus.