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Frank Rattray Lillie's research on freemartins from 1914 to 1920 in the US led to the theory that hormones partly caused for sex differentiation in…
Lillie, Frank Rattray, 1870-1947Intersexuality in animalsFreemartinismHormonesExperimentsResearchers Geoffrey Sher and Jeffrey Fisch gave Viagra, also known as sildenafil, to women undergoing fertility treatment to test whether the…
Fertility clinicsFertility, HumanHuman embryo--TransplantationEmbryo TransferSildenafil CitrateIn 1947, Carl Richard Moore, a researcher at the University of Chicago, in Chicago, Illinois, wrote Embryonic Sex Differentiation and Sex Hormones,…
LiteratureEndocrinologyHormones, SexGonadal Steroid HormonesFreemartinismBetween 1958 and 1962, physicians Olive W. Smith, George V. Smith, and Robert W. Kistner performed experiments that demonstrated the effects of the…
EthamoxytriphetolEstrogen AntagonistsClomiphenePituitary glandovaryIn "The Outgrowth of the Nerve Fiber as a Mode of Protoplasmic Movement," Ross Granville Harrison explores the growth of nerve fibers in vitro. The…
ExperimentsNerve Growth FactorTissue cultureThe HeLa cell line was the first immortal human cell line that George Otto Gey, Margaret Gey, and Mary Kucibek first isolated from Henrietta Lacks…
HeLa CellsContinuous cell linesResearch EthicsInformed consent (Medical law)Cervix uteri--CancerEarly 1990s research conducted by Peter Koopman, John Gubbay, Nigel Vivian, Peter Goodfellow, and Robin Lovell-Badge, showed that chromosomally…
Y ChromosomeTestisEmbryosChromosomesSex ChromosomesThe biomedical accomplishment of human in vitro fertilization and embryo transfer (IVF-ET) took years to become the successful technique that…
ReproductionExperimentsFertilizationIn 2018, He Jiankui uploaded a series of videos to a YouTube channel titled “The He Lab” that detailed one of the first instances of a successful…
Literaturegene editingGenome EditingCRISPR (Genetics)CRISPR-associated protein 9