Abstract
It has been recently shown that Rh incompatibility /inc./ protects from the damaging of ABO inc.. It is possible that this protection is different depending upon the fetal ABO phenotype. To test this possibility we have studied two consecutive series of white newborn infants, one from New Haven /I027/ and one from Rome /63I/. In both population the incidence of carriers of I allele was significantly higher among infants incompatible with their mothers in both ABO and RH systems than among infants incompatible only in the ABO system /p < 0.00l/. Furthermore IB carriers with bath ABO and RH inc. had a birth weight higher than I carriers with ABO inc. alone. These results suggest that in the case of feto-maternal ABO inc. the presence of Rh inc. exerts a preferential protective actione on IB carriers. This work was supported by NATO G.554.
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Jovenitti, G., Gloria, F., Talamo, R. et al. THE EFFECT OF RH FETO-MATERNAL INCOMPATIBILITY ON ABO INCOMPATIBILITY. Pediatr Res 9, 867 (1975). https://doi.org/10.1203/00006450-197511000-00091
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DOI: https://doi.org/10.1203/00006450-197511000-00091