Abstract
Summary
To determine the time of appearance of the haptoglobin serum proteins in the developing human being, starch gel zone electrophoresis was performed on sera from 5 fetuses, 63 umbilical cord bloods, and 86 infants. Haptoglobins were absent in sera from the fetuses, but present in 10% of the umbilical cord bloods at birth, in 75% of the sera from infants up to 2 weeks old, and in 100% of the sera from the infants over 2 weeks of age.
For cooperation and assistance in securing the cord and newborn bloods necessary for this study, we wish to thank Dr. Marion Erlandson and Dr. Margaret Hilgartner, Dept. of Pediatric Hematology, New York Hospital, Dr. Roy Bonsnes and Miss Dorothy Wendel, Central Laboratories of New York Hospital, and Dr. Wha Shim Han, Bellevue Hospital. We also wish to thank Dr. Bartholomeus Hoogstraten, Mt. Sinai Hospital, for obtaining the fetal bloods. Dr. German Castillo, Univ. of the Philippines, participated in the early phases of the study.
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