Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1991-6-7
pubmed:abstractText
We describe the clinical, neurologic, and biochemical findings in 10 patients with 6-pyruvoyl tetrahydropterin synthase (6-PTS) deficiency from seven families, all of whom originate from one large tribe in Saudi Arabia. This deficiency presents with severe, early onset of failure to thrive, neurologic deterioration, and morbidity and mortality secondary to repeated episodes of bronchopneumonia or cardiorespiratory abnormalities. The urinary pterin excretion pattern indicates deficient activity of 6-PTS, which has been confirmed by direct enzyme assay in red blood cells of three patients. We treated our patients with combined use of tetrahydrobiopterin 20 mg/kg/d, L-dihydroxyphenylalanine 15 mg/kg/d, carbidopa 3.75 mg/kg/d, and L-5-hydroxytryptophan 5 mg/kg/d. Neurologic findings improved significantly in all after 5 to 24 months. Although head circumference and weight returned to the lower limit of normal in four, height normalized only in one of seven patients. Despite an unrestricted diet during combined therapy, blood phenylalanine and urinary excretion of neopterin and biopterin returned to normal.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0028-3878
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
730-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Biopterin-dependent hyperphenylalaninemia due to deficiency of 6-pyruvoyl tetrahydropterin synthase.
pubmed:affiliation
Department of Pediatrics, King Faisal Specialist Hospital Research Center, Riyadh, Saudi Arabia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't