Insulin Levels in Primates by Immunoassay

Science  25 Sep 1970:
Vol. 169, Issue 3952, pp. 1312-1313
DOI: 10.1126/science.169.3952.1312


Only trace amounts of insulin were detected by an immunoassay system with guinea pig antibody to pork insulin in the New World primates Cebus and Saimiri. The system found insulin levels in the Old World primates rhesus and chimpanzee which were quite like those of human beings. The findings suggest important structural differences in the insulins of the two primate divisions.