Urea Cycle Disorders

📋Overview

Urea Cycle Disorders involve deficiencies in specific enzymes within the liver that are responsible for converting ammonia into urea for excretion. When these enzymes do not function correctly, ammonia—a toxic byproduct of protein metabolism—accumulates in the blood, a clinical state known as hyperammonemia.

These conditions are often classified by the specific enzyme affected and are collectively referred to as inherited hyperammonemia syndromes. Because the urea cycle is the primary pathway for nitrogen waste removal, these genetic deficiencies can lead to significant neurological impacts if ammonia levels remain elevated.