Promising outcomes in glutaric aciduria type i patients detected by newborn screening
Journal
Metabolic Brain Disease
Journal Volume
28
Journal Issue
1
Pages
61-67
Date Issued
2013
Author(s)
Lee C.-S.
Cheng P.-W.
Chang L.-M.
Huang A.-C.
Abstract
Glutaric aciduria type I (GA-I) is an inborn error of lysine and tryptophan metabolism. Clinical manifestations of GA-I include dystonic or dyskinetic cerebral palsy, but when the symptoms occur, treatment is not effective. In Taiwan, newborn screening for GA-I started in 2001; we wish to evaluate the outcomes of patients detected through newborn screening. Newborns diagnosed with GA-I by abnormal dried blood spot glutarylcarnitine (C5DC) levels followed in our hospital were included in this study. They were treated with special diets, carnitine supplements, and immediate stress avoidance. Six patients were included in this study. All patients were treated prior to reaching 1 month of age. They were followed up with for 4 to 9 years. One patient had encephalopathic crisis episodes prior to turning 1 year old that caused pallidal lesions. Another patient had a chronic progressive disease during infancy that caused bilateral putamen lesions. These two patients had delayed development, but their brain lesions were resolved. The other four patients ran uneventful courses. They had normal intelligenece, ranged between average to low average level and their brain magnetic resonance imaging showed only high intensity over deep white matter. Patients with GA-I diagnosed by newborn screening have promising outcomes, though the risks of disease progression prior to 1 year of age remain significant. ? 2012 Springer Science+Business Media New York.
SDGs
Other Subjects
article; autosomal recessive disorder; brain damage; brain disease; child; chronic disease; clinical article; disease course; dried blood spot testing; enzyme deficiency; female; follow up; glutaric aciduria type i; human; male; newborn screening; nuclear magnetic resonance imaging; outcome assessment; preschool child; risk factor; screening; Taiwan; white matter; Amino Acid Metabolism, Inborn Errors; Brain Diseases, Metabolic; Child; Child, Preschool; Female; Genotype; Glutaryl-CoA Dehydrogenase; Humans; Infant; Infant, Newborn; Magnetic Resonance Imaging; Male; Neonatal Screening; Phenotype
Type
journal article