How recently were the arguments around utility in human transplantation put forward? Are religious scholars the OG biotech founders?

Good paper on the history of human/animal transplantation: https://pmc.ncbi.nlm.nih.gov/articles/PMC3246856/

In the 1920s, Voronoff advocated the transplantation of slices of chimpanzee testis into aged men whose “zest for life” was deteriorating, believing that the hormones produced by the testis would rejuvenate his patients.