Autosomal Dominant Tubulointerstitial Kidney Disease Due To Umod Mutations

Autosomal dominant tubulointerstitial kidney disease due to UMOD mutations (ADTKD–UMOD) is an inherited disorder that causes a gradual loss of kidney function that eventually leads to the need for kidney transplantation or dialysis between the ages of 30 and 70. Patients with ADTKD-UMOD have high blood levels of uric acid before kidney failure develops, and some affected individuals may develop gout. Gout is a form of arthritis (inflammation) that occurs often in the big toe, ankle, knee, or other joints. ADTKD-UMOD is caused by a mistake (mutation) in the UMOD gene, which leads to the build-up of the altered uromodulin protein in the tubules of the kidney, leading to slow loss of kidney function. ADTKD-UMOD is inherited in a dominant pattern in families. It is diagnosed based on the symptoms, laboratory testing, family history and genetic testing. Many of the symptoms of ADTKD-UMOD can be treated with medication. For patients whose kidney function worsens to end-stage kidney disease, kidney transplant and dialysis can be used. The long-term outlook for people with ADTKD-UMOD is good, though patients may require dialysis or kidney transplantation between the ages of 30 and 70.