Short answer · Medically reviewed summary · Last updated: 2023-07-13
N-Acetylglutamate Synthetase Deficiency (NAGS deficiency) is a rare genetic disorder that affects the urea cycle, a metabolic pathway responsible for removing toxic ammonia from the body. This condition is caused by mutations in the gene that provides instructions for making the enzyme N-acetylglutamate synthetase (NAGS). NAGS deficiency is an autosomal recessive disorder, which means that an individual must inherit two copies of the mutated gene (one from each parent) to develop the condition.
Is N-Acetylglutamate Synthetase Deficiency hereditary?
Is N-Acetylglutamate Synthetase Deficiency hereditary? The genetic component explained in plain language, reviewed against medical sources, with patient experiences.
N-Acetylglutamate Synthetase Deficiency (NAGS deficiency) is a rare genetic disorder that affects the urea cycle, a metabolic pathway responsible for removing toxic ammonia from the body. This condition is caused by mutations in the gene that provides instructions for making the enzyme N-acetylglutamate synthetase (NAGS).
NAGS deficiency is an autosomal recessive disorder, which means that an individual must inherit two copies of the mutated gene (one from each parent) to develop the condition. If both parents are carriers of the mutated gene, there is a 25% chance with each pregnancy that their child will have NAGS deficiency.
The symptoms of NAGS deficiency can vary widely, ranging from mild to severe. Newborns with the severe form of the condition may experience lethargy, poor feeding, vomiting, seizures, and coma. In less severe cases, symptoms may not appear until later in life and can include intellectual disability, developmental delays, and liver problems.
Genetic testing is available to diagnose NAGS deficiency, and early detection is crucial for prompt treatment. Treatment typically involves a low-protein diet, medications to remove excess ammonia, and supplementation with N-carbamylglutamate, a synthetic form of NAGS.
Since NAGS deficiency is a genetic disorder, it can be passed down through families. Genetic counseling is recommended for individuals with a family history of NAGS deficiency or those who are carriers of the mutated gene. Understanding the inheritance pattern and risks associated with the condition can help individuals make informed decisions about family planning.
