Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 43 - 49 |
| Number of pages | 7 |
| Journal | Meta Gene |
| Volume | 3 |
| DOIs | |
| Publication status | Published - 2015 |
Cite this
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Investigation of molybdenum cofactor deficiency due to MOCS2 deficiency in a newborn baby. / Edwards, Matthew; Roeper, Juliane; Allgood, Catherine; Chin, Raymond; Santamaria-Araujo, Jose Angel; Wong, Flora Yuen-Wait; Schwarz, Guenter; Whitehall, John.
In: Meta Gene, Vol. 3, 2015, p. 43 - 49.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Investigation of molybdenum cofactor deficiency due to MOCS2 deficiency in a newborn baby
AU - Edwards, Matthew
AU - Roeper, Juliane
AU - Allgood, Catherine
AU - Chin, Raymond
AU - Santamaria-Araujo, Jose Angel
AU - Wong, Flora Yuen-Wait
AU - Schwarz, Guenter
AU - Whitehall, John
PY - 2015
Y1 - 2015
N2 - Molybdenum cofactor deficiency (MOCD) is a severe autosomal recessive neonatal metabolic disease that causes seizures and death or severe brain damage. Symptoms, signs and cerebral images can resemble those attributed to intrapartum hypoxia. In humans, molybdenum cofactor (MOCO) has been found to participate in four metabolic reactions: aldehyde dehydrogenase (or oxidase), xanthine oxidoreductase (or oxidase) and sulfite oxidase, and some of the components of molybdenum cofactor synthesis participate in amidoxime reductase. A newborn girl developed refractory seizures, opisthotonus, exaggerated startle reflexes and vomiting on the second day of life. Treatment included intravenous fluid, glucose supplementation, empiric antibiotic therapy and anticonvulsant medication. Her encephalopathy progressed, and she was given palliative care and died aged 1 week. There were no dysmorphic features, including ectopia lentis but ultrasonography revealed a thin corpus callosum. OBJECTIVES: The aim of this study is to provide etiology, prognosis and genetic counseling. METHODS: Biochemical analysis of urine, blood, Sanger sequencing of leukocyte DNA, and analysis of the effect of the mutation on protein expression. RESULTS: Uric acid level was low in blood, and S-sulfo-L-cysteine and xanthine were elevated in urine. Compound Z was detected in urine. Two MOCS2 gene mutations were identified: c.501 + 2delT, which disrupts a conserved splice site sequence, and c.419C > T (pS140F). Protein expression studies confirmed that the p.S140F substitution was pathogenic. The parents were shown to be heterozygous carriers. CONCLUSIONS: Mutation analysis confirmed that the MOCD in this family could not be treated with cPMP infusion, and enabled prenatal diagnosis and termination of a subsequent affected pregnancy.
AB - Molybdenum cofactor deficiency (MOCD) is a severe autosomal recessive neonatal metabolic disease that causes seizures and death or severe brain damage. Symptoms, signs and cerebral images can resemble those attributed to intrapartum hypoxia. In humans, molybdenum cofactor (MOCO) has been found to participate in four metabolic reactions: aldehyde dehydrogenase (or oxidase), xanthine oxidoreductase (or oxidase) and sulfite oxidase, and some of the components of molybdenum cofactor synthesis participate in amidoxime reductase. A newborn girl developed refractory seizures, opisthotonus, exaggerated startle reflexes and vomiting on the second day of life. Treatment included intravenous fluid, glucose supplementation, empiric antibiotic therapy and anticonvulsant medication. Her encephalopathy progressed, and she was given palliative care and died aged 1 week. There were no dysmorphic features, including ectopia lentis but ultrasonography revealed a thin corpus callosum. OBJECTIVES: The aim of this study is to provide etiology, prognosis and genetic counseling. METHODS: Biochemical analysis of urine, blood, Sanger sequencing of leukocyte DNA, and analysis of the effect of the mutation on protein expression. RESULTS: Uric acid level was low in blood, and S-sulfo-L-cysteine and xanthine were elevated in urine. Compound Z was detected in urine. Two MOCS2 gene mutations were identified: c.501 + 2delT, which disrupts a conserved splice site sequence, and c.419C > T (pS140F). Protein expression studies confirmed that the p.S140F substitution was pathogenic. The parents were shown to be heterozygous carriers. CONCLUSIONS: Mutation analysis confirmed that the MOCD in this family could not be treated with cPMP infusion, and enabled prenatal diagnosis and termination of a subsequent affected pregnancy.
UR - http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4329827/pdf/main.pdf
U2 - 10.1016/j.mgene.2014.12.003
DO - 10.1016/j.mgene.2014.12.003
M3 - Article
VL - 3
SP - 43
EP - 49
JO - Meta Gene
JF - Meta Gene
SN - 2214-5400
ER -