ABH-Secretion and Lewis Red Cell Groups in Diabetic and Normal Subjects from Ethiopia

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Abstract
The possible relationship between Lewis red cell groups and secretor status and diabetes mellitus has been investigated in diabetic patients from Northwestern Ethiopia. The Lewis negative phenotype [Le(a—b—)] showed similar frequencies in diabetics and a control sample. Determination of the secretor status revealed a tendency to higher non-secretor rates in diabetics, particularly of the insulin-dependent type, in comparison with non-diabetic Ethiopians. A lack of effective immune protection from secretory IgA antibodies as a plausible explanation for the relationship between non-secretor status and IDDM is discussed. However, the available data from our study showed no statistically significant association between secretor state and IDDM. Without a detailed genetic characterization of our diabetic patients (HLA association data) it will be difficult to define precisely the postulated contribution of the Se gene to the aetiopathogenesis of IDDM.

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