ArticleJIMD reports2025
HMG-CoA Synthase-2 Deficiency: Neonatal Hyperammonemic Coma and Abnormal Metabolic Screening Resembling Maple Syrup Urine Disease.
Article in JIMD reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Mitochondrial HMG-CoA synthase-2 (HMGCS2) deficiency is characterized by hypoketotic hypoglycemia, metabolic acidosis, hepatomegaly, and encephalopathy with onset between 3 and 36 months of age. Approximately 50 cases were reported worldwide. We describe two patients with HMGCS2 deficiency. Patient 1 presented on day of life 7 with a sepsis-like condition, coma, metabolic acidosis, and marked elevation of ammonium level at 1081 μmol/L. Metabolic screening demonstrated elevated valine and leucine/isoleucine concentrations, resembling maple syrup urine disease (MSUD). The patient received a blood exchange transfusion, which lowered the ammonium level to 92 μmol/L. Urine organic acid analysis did not confirm MSUD. At 1 year and 4 months, the patient experienced acute decompensation again. Exome sequencing revealed a homozygous
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