Autozomálně recesivní
Glutaminase deficiency is caused by changes in both copies of GLS, which makes the enzyme that converts glutamine to glutamate.
Příznaky a projevy
The most severe form starts soon after birth with seizures, breathing failure and brain abnormalities, and is often fatal in early infancy; blood glutamine levels are raised. Milder forms cause early-onset developmental delay.
Co se diagnózou změní
There is no specific treatment; care is supportive, with seizure treatment, breathing and feeding support and developmental care. Genetic counselling is recommended; parents are usually carriers, each future child has a 1 in 4 chance of being affected, and carrier testing can be offered to relatives.
Analyzované geny
Zahrnuje 2 příbuzných podtypů ↓Skrýt podtypy ↑
- developmental and epileptic encephalopathy, 71
- spastic ataxia-dysarthria due to glutaminase deficiency
