Leonard, 20th-century U.S. microbiologist. See: Hayflick limit.
References in periodicals archive ?
Biologists Leonard Hayflick and Colin Blakemore appearas skeptical counterpoints.
Replicative senescence of T cells: does the Hayflick Limit lead to immune exhaustion?
Leonard Hayflick and Paul Moorhead, co-winners for their work in proving that normal human cells have a limited capacity for dividing before they die out C a revolutionary idea that helped launch the modern era of research on the causes of human aging.
Jack Hayflick, Dominique Longcroft were among the 50 UN Plaza guests who heard how residences will range in size from one-bedroom apartments at 1,147 s/f to full-floor penthouses with five bedroom and two staff rooms at 5,893 s/f, as well as a triplex penthouse measuring 15,597 s/f.
Lung tissue from each of the 13 antelope was minced and inoculated into modified Hayflick broth, which has been used extensively to isolate Mycoplasma spp.
This culture removes the Hayflick limit [the number of times that a normal cell population will divide until cell division stops] of these cancer cells and allows them to multiply at a phenomenal rate, creating many billions to trillions of identical CTCs/CSCs with no change to their genetics, epigenetics, and phenotype expressions.
com)-- Gerontologist Leonard Hayflick (born 20 May 1928) is widely known for his research in cell biology and the ageing process.
This limit is called the Hayflick limit (after the scientist who discovered it).
From Hayflick to Walford: The role of T cell replicative senescence in human aging.
Hayflick, 2000; Held, 2002; Olshansky, Hayflick, and Carnes, 2002) or increased occurrence of very hot summers--comparable to the 2003 and 2006 summers in Europe--as a consequence of a global climate change (on hot summers and higher mortality rates, see Valleron and Boumendil, 2004; Conti et al.
For example, one is to find a way to overcome the Hayflick limit on cell reproduction.
Regency Centers would not comment, citing the pending litigation, said spokeswoman Bonnie Hayflick.