Influence of maternal antibody anti-Jra on the baby: a case report and pedigree chart.
A Jr(a-) female (proposita) who has developed anti-Jra during her second pregnancy and her pedigree chart are reported. The antibody anti-Jra of the proposita and her baby was determined to be IgG and was eluted from their red cells. The baby's bilirubin rose to a peak on day 4 without clinical problem except for prophylactic phototherapy carried out. Two other examples of Jr(a-) blood type were detected in her elder sister and the first baby of the proposita with investigation of her pedigree chart.
D000328:Adult; D001789:Blood Group Antigens / Q000235:genetics; D001787:Blood Group Incompatibility; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007518:Isoantibodies / Q000032:analysis*; D007567:Jaundice, Neonatal / Q000097:blood*; D008431:Maternal-Fetal Exchange; D010375:Pedigree; D011247:Pregnancy
D001789:Blood Group Antigens; D007518:Isoantibodies