A Case of Molecular Diagnosis of Ornithine Transcarbamylase Deficiency / 영남의대학술지
Yeungnam University Journal of Medicine
;
: 322-328, 2007.
Article
Dans Coréen
| WPRIM
| ID: wpr-72239
ABSTRACT
Ornithine transcarbamylase (OTC) deficiency is the most common inborn error of urea cycle metabolism; it is inherited in an X-linked manner. The OTC catalyzes the third step of the urea cycle, the conversion of ornithine and carbamyl phosphate to citrulline. Deficiency of OTC leads to the accumulation of ammonia, causing neurological deficits. In most affected hemizygote males, OTC deficiency manifests as hyperammonemic coma that often leads to death in the newborn period, and those who recover from the coma may be neurologically impaired due to the sequelae of the hyperammonemic encephalopathy. In some, late-onset manifestations develop. We report a male neonate with early onset OT deficiency that had apnea and was comatous. On mutation analysis using DNA sequencing after polymerase chain reaction (PCR) amplification of the 10 exons, deletions of 10 bases in codon 285, causing a frame shift was detected in exon 8. The mother and a sister were diagnosed as female carriers. Therefore, genetic counseling and the risk assessment could be provided to the family.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Ornithine
/
Ornithine carbamoyltransferase
/
Apnée
/
Urée
/
Codon
/
O-Phosphono-carbamate
/
Réaction de polymérisation en chaîne
/
Exons
/
Citrulline
/
Analyse de séquence d'ADN
Type d'étude:
Etude diagnostique
/
Etude d'étiologie
/
Facteurs de risque
Limites du sujet:
Femelle
/
Humains
/
Mâle
/
Nouveau-né
langue:
Coréen
Texte intégral:
Yeungnam University Journal of Medicine
Année:
2007
Type:
Article
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