PMID: 9174232Apr 1, 1997Paper

Genotypic/phenotypic heterogeneity of selective vitamin B12 malabsorption (Grasbeck-Imerslund syndrome) in two Bedouin families

Acta Paediatrica
E A IsmailM Zaki

Abstract

We report on seven patients in two unrelated consanguineous Bedouin families with Grasbeck-Imerslund syndrome. Pedigree analysis in Family 1 was suggestive of an X-linked mode of inheritance. Intra- and inter-familial heterogeneity was elicited among the affected children in both families. Two of the affected sibs in each family had raised Hb A2 (>4%) while a third in Family 1 had a raised level of Hb F before treatment. One of the patients developed subacute combined degeneration of the cord at the age of 17 years before the correct diagnosis was made. All abnormalities were corrected following the institution of parenteral cobalamin therapy.

References

Oct 1, 1978·Journal of Clinical Pathology·L A HenshawM E Beard
Nov 1, 1992·The Journal of Pediatrics·S M GrahamG A Wise
Jun 30, 1988·The New England Journal of Medicine·J LindenbaumR H Allen
Mar 1, 1984·Acta paediatrica Scandinavica·H BrochM Seip
Sep 1, 1994·Nucleic Acids Research·P PearsonV McKusick
Jul 15, 1960·Acta Medica Scandinavica·R GRASBECKB KUHLBACK

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