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President George W. Bush's Announcement on Stem Cells, 9 August 2001
By: Samuel Philbrick
| Published: Nov 19, 2010
On 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 Development
Shoukhrat Mitalipov and Masahito Tachibana’s Mitochondrial Gene Replacement in Primate Offspring and Embryonic Stem Cells (2009)
By: Giselle Lee
| Published: Jan 10, 2018
Shoukhrat Mitalipov, Masahito Tachibana, and their team of researchers replaced the mitochondrial genes of primate embryonic stem cells via spindle…
monkeysrhesus macaqueSendai virusEmbryonic Stem CellsMitochondrial Diseases
Purkinje Cells
By: Minai Mandana
| Published: Aug 12, 2014
Purkinje cells, also called Purkinje neurons, are neurons in vertebrate animals located in the cerebellar cortex of the brain. Purkinje cell bodies…
Purkinje CellsCerebellar CortexcerebellumBrain Stem
James Alexander Thomson (1958- )
By: Ke Wu
| Published: Feb 01, 2011
James Alexander Thomson, affectionately known as Jamie Thomson, is an American developmental biologist whose pioneering work in isolating and…
PeopleThomson, James A., Dr.Stem CellsBiography
Somatic Cell Nuclear Transfer in Mammals (1938-2013)
By: Zane Bartlett
| Published: Nov 04, 2014
In the second half of the twentieth century, scientists learned how to clone organisms in some species of mammals. Scientists have applied somatic…
CloningCell nuclei--TransplantationSpemann, Hans, 1869-1941Genetic Engineering
"Embryonic Stem Cell Lines Derived from Human Blastocytes" (1998), by James Thomson
By: Ke Wu
| Published: Feb 01, 2011
After becoming chief pathologist at the University of Wisconsin-Madison Wisconsin Regional Primate Center in 1995, James A. Thomson began his…
Stem CellsExperimentsPublicationsHuman Development
"Embryonic Stem Cell Lines Derived from Human Blastocytes" (1998), by James Thomson
By: Ke Wu
| Published: Feb 01, 2011
After becoming chief pathologist at the University of Wisconsin-Madison Wisconsin Regional Primate Center in 1995, James A. Thomson began his…
Stem CellsExperimentsPublicationsHuman Development
"Viable Offspring Derived from Fetal and Adult Mammalian Cells" (1997), by Ian Wilmut et al.
By: Zane Bartlett
| Published: Oct 10, 2014
In the 1990s, Ian Wilmut, Jim McWhir, and Keith Campbell performed experiments while working at the Roslin Institute in Roslin, Scotland. Wilmut,…
CloningMolecular CloningClone CellsCampbell, Keith, 1954-2012Roslin Institute
"Hybrids and Chimeras: A Consultation on the Ethical and Social Implications of Creating Human/Animal Embryos in Research" (2007), by the HFEA
By: Sarah Taddeo, Jason S. Robert
| Published: Nov 04, 2014
To educate its citizens about research into chimeras made from human and non-human animal cells, the United Kingdom's Human Fertilisation Embryology…
LiteratureChimerismHuman reproductive technologyHuman CloningFertilization in vitro, Human
California Proposition 71 (2004)
By: Ceara O'Brien
| Published: Apr 03, 2014
The California Stem Cell Research and Cures Act, also called Proposition 71, was a ballot initiative proposed by California voters in 2004 to…
LawStem cells--Research--Religious aspects--ChristianityStem cells--Research--Moral and ethical aspectsEmbryonic stem cells--Research--Law and legislationEmbryo Research