Familial neurohypophyseal diabetes insipidus is almost always inherited in an autosomal dominant pattern , which means one copy of the altered AVP gene in each cell is sufficient to cause the disorder. In a few affected families, the condition has had an autosomal recessive pattern of inheritance.

What is hereditary nephrogenic diabetes insipidus?

Hereditary nephrogenic diabetes insipidus (NDI) is characterized by inability to concentrate the urine, which results in polyuria (excessive urine production) and polydipsia (excessive thirst).

What are the hereditary types of diabetes insipidus?

The hereditary form of nephrogenic diabetes insipidus can be caused by mutations in at least two genes. About 90 percent of all cases of hereditary nephrogenic diabetes insipidus result from mutations in the AVPR2 gene. Most of the remaining 10 percent of cases are caused by mutations in the AQP2 gene.

Is central diabetes insipidus hereditary?

The origin of the disease is genetic and is usually due to a mutation in the AVP gene located on chromosome 20p13 that encodes a precursor protein consisting of arginine vasopressin and two associated proteins, neurophysin 2 and copeptin. All except a few cases show an autosomal dominant pattern of inheritance.

What is the cause of nephrogenic diabetes insipidus?

Lithium is the most common cause of acquired nephrogenic diabetes insipidus. It's a medication often used to treat bipolar disorder. Long-term lithium use can damage the cells of the kidneys so they no longer respond to AVP.

Hereditary nephrogenic diabetes insipidus || kidney || renal

40 related questions found

How is hereditary diabetes insipidus inherited?

Familial neurohypophyseal diabetes insipidus is almost always inherited in an autosomal dominant pattern , which means one copy of the altered AVP gene in each cell is sufficient to cause the disorder. In a few affected families, the condition has had an autosomal recessive pattern of inheritance.

What happens in nephrogenic diabetes insipidus?

In nephrogenic diabetes insipidus, the kidneys produce a large volume of dilute urine because the kidney tubules fail to respond to vasopressin (antidiuretic hormone) and are unable to reabsorb filtered water back into the body.

What is familial diabetes insipidus?

Familial neurohypophyseal diabetes insipidus (FNDI) is a rare inherited disease characterized by severe polyuria and polydipsia. It is caused by postnatal development of a deficient neurosecretion of the antidiuretic hormone, arginine vasopressin (AVP), normally produced by the magnocellular neurons.

What is Wolfram syndrome?

Wolfram syndrome is an inherited condition that is typically associated with childhood-onset insulin-dependent diabetes mellitus and progressive optic atrophy. In addition, many people with Wolfram syndrome also develop diabetes insipidus and sensorineural hearing loss.

Can diabetes insipidus cause infertility?

Patients with diabetes insipidus generally show intense thirst, polyuria, neurologic symptoms and hypernatremia. It does not seem to alter the patient's fertility. Diabetes insipidus is usually associated with pre-eclampsia, HELLP syndrome, and fatty liver disease of pregnancy.

What does nephrogenic mean?

Medical Definition of nephrogenic

1 : originating in the kidney : caused by factors originating in the kidney nephrogenic hypertension. 2 : developing into or producing kidney tissue strands of nephrogenic cells.

What are the four types of diabetes insipidus?

The four types of diabetes insipidus

• Central diabetes insipidus. This is the most common form of DI and is caused by damage to the pituitary gland or hypothalamus. ...
• Nephrogenic diabetes insipidus. ...
• Dipsogenic diabetes insipidus. ...
• Gestational diabetes insipidus.

What are the initial signs of diabetes insipidus?

The symptoms of diabetes insipidus include:

• Extreme thirst that can't be quenched (polydipsia)
• Excessive amounts of urine (polyuria)
• Colourless urine instead of pale yellow.
• Waking frequently through the night to urinate.
• Dry skin.
• Constipation.
• Weak muscles.
• Bedwetting.

What are the complications of nephrogenic diabetes insipidus?

NDI causes chronic excessive thirst (polydipsia), excessive urine production (polyuria), and potentially severe dehydration. If left untreated, repeated episodes of severe dehydration may develop, eventually resulting in serious complications. Most cases of hereditary NDI are inherited as X-linked recessive disorders.

What is the difference between neurogenic and nephrogenic diabetes insipidus?

Nephrogenic diabetes insipidus, also known as renal diabetes insipidus, is a form of diabetes insipidus primarily due to pathology of the kidney. This is in contrast to central or neurogenic diabetes insipidus, which is caused by insufficient levels of antidiuretic hormone (also called vasopressin).

What is the difference between central and nephrogenic diabetes insipidus?

Central DI (CDI) is due to a lack of the hormone vasopressin (antidiuretic hormone). This can be due to injury to the hypothalamus or pituitary gland or genetics. Nephrogenic DI (NDI) occurs when the kidneys do not respond properly to vasopressin.

What is Carpenter's syndrome?

Carpenter syndrome is a condition characterized by the premature fusion of certain skull bones (craniosynostosis), abnormalities of the fingers and toes, and other developmental problems. Craniosynostosis prevents the skull from growing normally, frequently giving the head a pointed appearance (acrocephaly).

What is Polydipsia a symptom of?

Polydipsia is the term given to excessive thirst and is one of the initial symptoms of diabetes. It is also usually accompanied by temporary or prolonged dryness of the mouth.

Does diabetes insipidus affect blood sugar?

In diabetes insipidus, your blood glucose levels are normal, but your kidneys can't properly concentrate urine.

Can you have both diabetes mellitus and diabetes insipidus?

Only about 50 cases have been described (1-11). The simultaneous occurrence of the two dis- orders has been considered fortuitous except in a case described by Natelson (2) in which a hyperfunctioning eosinophilic adenoma of the pituitary caused the onset of both diabetes mellitus and diabetes insipidus.

How do you assess for nephrogenic diabetes insipidus?

Diagnosis of Nephrogenic Diabetes Insipidus

Initial testing includes 24-h urine collection (without fluid restriction) for volume and osmolality, and serum electrolytes. Patients with NDI excrete > 50 mL/kg of urine/day (polyuria).

How is nephrogenic diabetes insipidus detected?

Tests used to diagnose diabetes insipidus include:

1. Water deprivation test. While being monitored by a doctor and health care team, you'll be asked to stop drinking fluids for several hours. ...
2. Magnetic resonance imaging (MRI). An MRI can look for abnormalities in or near the pituitary gland. ...
3. Genetic screening.

How do thiazide diuretics work in nephrogenic diabetes insipidus?

Thiazides have been used in patients with nephrogenic diabetes insipidus (NDI) to decrease urine volume, but the mechanism by which it produces the paradoxic antidiuretic effect remains unclear.

Is diabetes insipidus hereditary in dogs?

In some dogs, diabetes insipidus is a genetically inherited condition. What Are the Clinical Signs of Diabetes Insipidus? Because ADH helps the body retain water, an inadequate amount of ADH (or an inability to use it properly) causes the body to lose too much water through urine production by the kidneys.

Can CKD cause diabetes insipidus?

Nephrogenic diabetes insipidus.

The defect may be due to an inherited (genetic) disorder or a chronic kidney disorder. Certain drugs, such as lithium or antiviral medications such as foscarnet (Foscavir), also can cause nephrogenic diabetes insipidus.