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Association between Rh and plasma iron binding (transferrin)

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Summary

In order to establish the mechanism involved in the maintenance of the Rh polymorphism and fetomaternal compatibility relationships, we examined a sample of children from the North Area of Santiago (Chile), with respect to their growth and development patterns since 1973. This sample had shown large sib-sib segregation distortions for the Rh system. Metric variables, such as plasma protein fractions and iron, academic performance at the end of the last secondary grade and adult stature, were studied in relation to genetic markers, viz., sex, ABO, Xg, MN, Rh, haptoglobins, phosphoglucomutase, and esterase D, by means of unbalanced one way analyses of variance. Highly significant results were found for Rh phenotypes and total iron binding capacity (TIBC, transferrin). However, plasma iron did not differ significantly among Ph phenotypes. Children with the C (Rh) specificity had higher values of TIBC than non-C or c individuals (P < 0.00001). Evolutionary considerations regarding iron transport and erythroblastosis, relationships between Rh and the transferrin receptor at the plasma membrane, and the location of the Blym-I oncogene (that shares common sequences with transferrins) close to Rh in chromosome 1 are discussed. Less significant results were found between phosphoglucomutase and stature, gamma globulin level and sex, and academic performance (history) and sex.

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Authors and Affiliations

  1. Departamento de Biología Celular y Genética, Universidad de Chile, Independencia 1027,Casilla 70061, Correo, 7, Santiago, Chile

    Carlos Y. Valenzuela & Zuraiya Harb

  2. Departamento de Pediatría, Facultad de Medicina, Universidad de Chile, Independencia 1027,Casilla 70061, Correo, 7, Santiago, Chile

    Alfredo Avendaño

Authors
  1. Carlos Y. Valenzuela
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  2. Alfredo Avendaño
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  3. Zuraiya Harb
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Valenzuela, C.Y., Avendaño, A. & Harb, Z. Association between Rh and plasma iron binding (transferrin). Hum Genet 87, 438–440 (1991). https://doi.org/10.1007/BF00197164

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  • DOI: https://doi.org/10.1007/BF00197164

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