3 Výsledek
Patients with germline mutations in the urea-cycle enzyme argininosuccinate lyase (ASL) are at risk for developing neurobehavioral and cognitive deficits. We find that ASL is prominently expressed in the nucleus locus coeruleus (LC), the central source of norepinephrine. Using natural history data,
Argininosuccinate lyase (ASL) deficiency (McKusick 207900) is a rare autosomal recessive disorder affecting the urea cycle. The cardinal symptom in the neonatal form is progressive hyperammonemia, which is often life-threatening. However, clinical symptoms in the late onset form are quite
Tetrahydrobiopterin (BH4) is a cofactor for tyrosine hydroxylase and tryptophan hydroxylase, which are essential enzymes for the biosynthesis of dopamine, norepinephrine, and serotonin. It has been known that BH4 is a labile molecule and easily oxidized. As ascorbic acid (AsA) is an antioxidant that