Kenyon S Tweedell Author
Subjects of specialization
Affiliation
Biological Sciences, Tumors in Frogs
Department of Biological Sciences, University of Notre Dame and Marine Biological Laboratory, USA
Kenyon S. Tweedell, a professor emeritus of biology who taught and conducted research at the University of Notre Dame for 34 years, died March 30. He was 97. After graduating from high school, Tweedell served as a radarman second class in the U.S. Navy during World War II. Following the war, he earned bachelor’s, master’s and doctoral degrees in developmental biology from the University of Illinois.
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Author(s): Kenyon S Tweedell
Understanding Somatic (Adult)Stem Cells: Potential vs. Reality
In the adult mammal, reserve stem cells, both active and quiescent, serve as primary precursors for differentiated cells. They often provide replacement cells as needed during normal cell homeostasis or serve as residual stem cell sources during periods of stress, trauma or disease. Adult stem cells have a defined level of maturity, accompanied by stability of differentiation, are less likely to invoke an immune response and are often readily derived from reservoirs in bone marrow, blood, adipose tissue and a variety of placental related tissues. While certain adult stem cells are well established as n... view moreĀ»