Galactosemia


Galactosemia (GALT Deficiency; GALT; Galactose-1-Phosphate Uridylyltransferase Deficiency) is a rare genetic disorder caused by a mutation in the GALT gene which codes for galactose-1-phosphate uridylyltransferase. A deficiency in this enzyme results in accumulation of D-galactose and galactitol in plasma and urine; bilirubin, chloride, and galactose-1-phosphate, and transaminases in serum. Symptoms, which present at birth, include jaundice, enlarged liver, anemia, weight loss, and vomiting. Treatment includes galactose-free diet, antibiotics, and vitamin K.

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References

  1. Uniprot: P07902
  2. OMIM: Entry 230400
  3. Engelke, U., van der Graaf, M., Heerschap, A., Hoenderop, S., Moolenaar, S., Morava, E., Wevers, R. (2007). Handbook of 1H-NMR spectroscopy in inborn errors of metabolism: body fluid NMR spectroscopy and in vivo MR spectroscopy (pp 44) (2nd ed). Heilbronn: SPS Verlagsgesellschaft
  4. DAWSON SP, HICKMAN RO, KELLEY VC: Galactosemia. A genetic study of four generations by enzyme assay. Am J Dis Child. 1960 Jul;100:69-73. Pubmed
  5. Ashino J, Okano Y, Suyama I, Yamazaki T, Yoshino M, Furuyama J, Lin HC, Reichardt JK, Isshiki G: Molecular characterization of galactosemia (type 1) mutations in Japanese. Hum Mutat. 1995;6(1):36-43. Pubmed
  6. Elsas LJ, Langley S, Steele E, Evinger J, Fridovich-Keil JL, Brown A, Singh R, Fernhoff P, Hjelm LN, Dembure PP: Galactosemia: a strategy to identify new biochemical phenotypes and molecular genotypes. Am J Hum Genet. 1995 Mar;56(3):630-9. Pubmed
  7. Elsas LJ 2nd, Lai K: The molecular biology of galactosemia. Genet Med. 1998 Nov-Dec;1(1):40-8. Pubmed