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Zdebska, E. et al.

Short report: erythrocyte membranes from a patient with congenital dyserythropoietic anaemia type I (CDA-I) show identical, although less pronounced, glycoconjugate abnormalities to those from patients with CDA-II (HEMPAS).

Congenital dyserythropoietic anaemias (CDAs) are rare hereditary disorders characterized by ineffective erythropoiesis and multinuclearity of erythroblasts. Three main types of the disease have been described. Glycoconjugate abnormalities in erythrocyte membrane glycoconjugates, consisting of hypoglycosylation of band 3 and accumulation of certain glycosphingolipids including lactotriaosylceramide, neolactotriaosylceramide and polyglycosylceramides, have been described only in patients with CDA type II (CDA-II). We report on identical, although less pronounced, abnormalities in erythrocyte glycoconjugates from a patient with CDA-I. A low degree of hypoglycosylation of band 3 in our patient with CDA-I suggests that hypoglycosylation is not a cause, but, most probably, a consequence of dyserythropoiesis.[1]

References

Short report: erythrocyte membranes from a patient with congenital dyserythropoietic anaemia type I (CDA-I) show identical, although less pronounced, glycoconjugate abnormalities to those from patients with CDA-II (HEMPAS). Zdebska, E., Woźniewicz, B., Adamowicz-Salach, A., Kościelak, J. Br. J. Haematol. (2000) [Pubmed]

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