Glycogen storage disease-like phenotype with central nervous system involvement in a PGM1-CDG patient
2014
OBJECTIVES: A 10-year-old boy presented with cleft palate, hepatopathy, cholecystolithiasis, myopathy, coagulopathy, hyperlipidemia, hypoglycemia, hyperuricemia, short stature, obesity, hypothyroidism, microcephaly and mild intellectual disability. The multi-systemic manifestation involving certain distinct clinical features prompted us to search for a subtype of congenital disorders of glycosylation (CDG). METHODS: The patient was screened for CDG by examining the distribution of transferrin (TRF) and apolipoprotein C-III (ApoC-III) sialylated isoforms using isoelectric focusing of serum. This was followed by spectrophotometric measurement of phosphoglucomutase 1 (PGM1) activity in fibroblasts and molecular analysis including sequencing and PCR-RFLP of
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