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The Shettles Method of Sex Selection
By: Alysse Blight
| Published: Apr 03, 2019
In the 1960s in the United States Landrum B. Shettles developed the Shettles method, which is a procedure for couples to use prior to and during an…
TechnologySex PreselectionSex PredeterminationFamily PlanningSex Chromosomes
David Baltimore (1938–2025)
By: Meilin Zhu
| Published: Dec 27, 2017
David Baltimore studied viruses and the immune system in the US during the twentieth century. In 1975, Baltimore was awarded the Nobel Prize in…
Baltimore, DavidDNAAcquired Immunodeficiency Syndrome
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
Mitochondrial Diseases in Humans
By: Dorothy R. Haskett
| Published: Jul 11, 2014
Mitochondrial diseases in humans result when the small organelles called mitochondria, which exist in all human cells, fail to function normally. The…
Mitochondrial pathologyMitochondriaCell organellesCell nuclei--TransplantationReproductive technology
Robert Geoffrey Edwards and Patrick Christopher Steptoe's Clinical Research in Human in vitro Fertilization and Embryo Transfer, 1969-1980
By: Lijing Jiang
| Published: May 12, 2011
The biomedical accomplishment of human in vitro fertilization and embryo transfer (IVF-ET) took years to become the successful technique that…
ReproductionExperimentsFertilization
"Generation of Induced Pluripotent Stem Cells Using Recombinant Proteins" (2009), by Hongyan Zhou et al.
By: Samuel Philbrick
| Published: Aug 30, 2010
Induced pluripotent stem cells (iPSCs) are studied carefully by scientists not just because they are a potential source of stem cells that…
LiteratureStem CellsPublicationsRegeneration
Albert Ludwig Sigesmund Neisser (1855–1916)
By: Eboni E. Andersun
| Published: Jun 03, 2025
Albert Ludwig Sigesmund Neisser was a physician and scientist working in Poland who, in 1879, identified the bacterium that causes gonorrhea. Before…
SyphilisGonorrheaLeprosySexually Transmitted DiseasesBacteria
"Reproductive Options for HIV-Serodiscordant Couples” (2006) by Pablo Barreiro, Ann Duerr, Karen Beckerman, and Vincent Soriano
By: Chase V. Florez
| Published: Oct 31, 2019
In July 2006, scientist Pablo Barreiro and colleagues published “Reproduction Options for HIV-Serodiscordant Couples,” in which they recommended…
LiteratureHIV-positive personsHIV infectionsAIDS (Disease)HIV-positive men--United States
The Jackson Laboratory
By: Christina Raup
| Published: Jul 01, 2010
The Roscoe B. Jackson Laboratory, known commonly in the scientific field as the Jackson Laboratory, was founded by Clarence Cook Little in May 1929.…
OrganizationOrganizationsLaboratoriesMiceGenetics
Pope Gregory XIV (1535-1591)
By: Angel Lopez
| Published: Jun 22, 2010
Pope Gregory XIV, born Nicolo Sfondrati, reversed the bull of Pope Sixtus V, Effraenatum, under which an abortion at any time of gestation can be…
PeoplereligionReproductionBiographyCatholicism