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(Circulation. 1967;36:766.)
© 1967 American Heart Association, Inc.

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Cardioglobulin B Content of the Blood Plasma of Newborn Infants

SERGIO A. BENCOSME M.D.¹; D. J. DELAHAYE M.D.¹; J. E. FAY M.B.¹; N. OZEN M.D.¹

¹ From the Departments of Pathology and Pediatrics, Queen's University and Kingston General Hospital, Kingston, Ontario, Canada.

A comparative study was made of the cardioglobulin B content of the plasma of 26 normal adults and 20 newborn infants with the bioassay technique described by Hajdu and Leonard. The cardioglobulin B content in the plasma of infants was significantly lower than that of adults. Heparin was used as the anticoagulant in the blood samples throughout this study. It was noted that, when heparin containing phenol as a preservative was employed, the cardioglobulin B levels were lower in both groups.

Key Words: Cardioglobulin bioassay • Cardiac contractility