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Diagnosis of Glycine Encephalopathy (NKH)

Test search: MGH Laboratory Handbook

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Tests Offered

  • Amino acid analysis, quantitative
  • Argininosuccinate, quantitative
  • Arginase activity *
  • Fumarase activity *
  • Glutamine level
  • Glycine level
  • HHH Syndrome testing (ornithine incorporation assay) *
  • Homocitrulline
  • Homocystinuria/CBS, G307S and I278T *
  • Medium chain acyl CoA dehydrogenase (MCAD), 985A>G
  • Methylene tetrahydrofolate reductase (MTHFR), 677C>T and 1298A>C
  • Ornithine level
  • PKU testing
  • Succinylpurine screen
  • Sulfite Oxidase (SUOX) mutation studies *
  • Thiosulfate

* Done by pre-arrangement only

Specimen requirements
Please contact us by phone or email for further information, or to discuss additional special testing not listed here.

Diagnosis of Glycine Encephalopathy (NKH)

Isolated Sulfite Oxidase deficiency vs Molybdenum Cofactor deficiency

Test search: MGH Laboratory Handbook


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Last updated Dec-09