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David Phillip Vetter (1971–1984)
By: Maggie Zhou
| Published: Aug 01, 2024
David Phillip Vetter was born with X-linked severe combined immunodeficiency disorder, or X-SCID, and spent most of his life in an isolated sterile…
X-Linked Combined Immunodeficiency DiseasesX-Linked SCIDSevere Combined ImmunodeficiencyBone Marrow--TransplantationAutoimmune Diseases
Elizabeth Blackburn, Carol Greider and Jack Szostak's Telomere and Telomerase Experiments (1982-1989)
By: Zane Bartlett
| Published: Mar 24, 2015
Experiments conducted by Elizabeth Blackburn, Carol Greider, and Jack Szostak from 1982 to 1989 provided theories of how the ends of chromosomes,…
TelomereGreider, Carol W.Chromosome replicationTelomeraseDNA
The Hayflick Limit
By: Zane Bartlett
| Published: Nov 14, 2014
The Hayflick Limit is a concept that helps to explain the mechanisms behind cellular aging. The concept states that a normal human cell can only…
CellsCell populationsCell DeathApoptosisCell Proliferation
Lap-Chee Tsui (1950-)
By: Kristina Winikates
| Published: Nov 10, 2011
Lap-Chee Tsui is a geneticist who discovered the cystic fibrosis (CF) gene, and his research team sequenced human chromosome 7. As the location of…
PeopleTsui, Lap-CheeCystic FibrosisReproductionBiography
“Use of reproductive technology for sex selection for nonmedical reasons” (2015), by the Ethics Committee of the American Society for Reproductive Medicine
By: Alysse Blight
| Published: May 27, 2019
In June 2015, the Ethics Committee of the American Society for Reproductive Medicine, or ASRM, published “Use of reproductive technology for sex…
LiteratureSex PreselectionFertilization in VitroReproductive technologyHuman reproductive technology
Amniocentesis Prior to 1980
By: Kristin Kelley
| Published: Sep 02, 2010
The extraembryonic membranes that surround and originate from the embryos of vertebrates such as birds, reptiles, and mammals are crucial to their…
AmniocentesisReproductionFetus
The Role of the Notch Signaling Pathway in Myogenesis
By: Justin M. Wolter
| Published: Jul 26, 2013
Among other functions, the Notch signaling pathway forestalls the process of myogenesis in animals. The Notch signaling pathway is a pathway in…
MyogenesisNotch genesNotch ProteinsMusclesMyoblasts
“Prenatal Diagnosis of Down Syndrome: Mothers’ Reflections on Supports Needed From Diagnosis to Birth” (1998), by David T. Helm, Sara Miranda, and Naomi Angoff Chedd
By: Grace Rauch
| Published: Jun 04, 2024
On 1 February 1998, David T. Helm, Sara Miranda, and Naomi Angoff Chedd published “Prenatal Diagnosis of Down Syndrome: Mothers’ Reflections on…
Down syndromeCongenital AbnormalitiesGenetic disorders in pregnancygenetic testingAmniocentesis
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
"Transfer of Fetal Cells with Multilineage Potential to Maternal Tissue" (2004), by Kiarash Khosrotehrani et al.
By: Alexis Abboud
| Published: Nov 14, 2014
In 2004, a team of researchers at Tufts-New England Medical Center in Boston, Massachusetts, investigated the fetal cells that remained in the…
CellsStem CellsMaternal-Fetal ExchangeFetal cells from maternal bloodFetus