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The Spemann-Mangold organizer, also known as the Spemann organizer, is a cluster of cells in the developing embryo of an amphibian that induces…
EmbryosAmphibiansSpemann, Hans, 1869-1941EmbryologyGastrulationRobert Geoffrey Edwards worked with Patrick Christopher Steptoe to develop in-vitro fertilization (IVF) techniques during the 1960s and 1970s in the…
PeopleFertilization in VitroReproductionBiographyFertilizationShinya Yamanaka gained international prominence after publishing articles detailing the successful generation of induced pluripotent stem (iPS) cells…
PeopleStem CellsBiographyHuman pluripotent stem cells are valued for their potential to form numerous specialized cells and for their longevity. In the US, where a portion of…
LiteratureKass, LeonStem CellsPublicationsethicsIn the July 2007 issue of Nature, Keisuke Okita, Tomoko Ichisaka, and Shinya Yamanaka added to the new work on induced pluripotent stem cells (iPSCs…
LiteratureStem CellsPublicationsSomatic cellsIn November 2007, Masato Nakagawa, along with a number of other researchers including Kazutoshi Takahashi, Keisuke Okita, and Shinya Yamanaka,…
LiteratureStem CellsPublicationsExperimentsMiceOn 9 August 2001, US President George W. Bush gave an eleven-minute speech from his ranch in Crawford, Texas, on the ethics and fate of federal…
LiteratureStem CellsHuman DevelopmentA PhD and medical doctor turned ethicist, Leon Kass calls himself an unlicensed humanist. Throughout his unique career he has sought to impact others…
PeoplebioethicsethicsReproductionBiographyInduced pluripotent stem cells (iPSCs) are studied carefully by scientists not just because they are a potential source of stem cells that…
LiteratureStem CellsPublicationsRegeneration