The similarity of chorionic gonadotrophin and its subunits in term placentae from man, apes, old and New World monkeys and a prosimian.


Chorionic gonadotrophin (CG) was estimated, by bioassay and radioimmunoassay (RIA), in placental extracts from 11 ape and monkey species. There was a significant correlation between the results of the two assay systems (r = 0.903, p less than 0.001). The concentration of CG in most primate term placentae was the same as that in the human placenta at term… (More)


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