Microchimerism and Tolerance following Intrauterine Transplantation and Transfusion for α-Thalassemia-1

Abstract excerpt

A fetus homozygous for alpha-thalassemia-1 was given haploidentical paternal CD34 cells at 13, 19 and 24 weeks' gestation and supported through pregnancy by blood transfusion. The fetal hematocrit ranged between 27 and 47% and between one half and three quarters of this hemoglobin was of recipient (Bart's) type. Intrauterine growth proceeded normally and no significant fetal hydrops was detected. Tests for donor...

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