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Latest Hayflick limit Stories

2014-04-07 12:51:28

The long and the short of telomeres In captivity, grey parrots are often kept in social isolation, which can have detrimental effects on their health and wellbeing. So far there have not been any studies on the effects of long term social isolation from conspecifics on cellular aging. Telomeres shorten with each cell division, and once a critical length is reached, cells are unable to divide further (a stage known as 'replicative senescence'). Although cellular senescence is a useful...

Biological Markers In Chromosomes Predict The Common Cold
2013-02-20 10:41:51

[Watch Video: Biological Marker Predicts Susceptibility To Common Cold] Lawrence LeBlond for redOrbit.com - Your Universe Online While predicting future events has been met with much skepticism, many scientists make it their life work to predict what will happen in the future. Such predictions include what regional weather will be like, how much warmer the planet will be, and even when the Sun will die. But predictive science is not limited to just forecasting the weather or...

2011-12-08 23:34:46

Researchers have revealed how a molecule called telomerase contributes to the control of the integrity of our genetic code, and when it is involved in the deregulation of the code, its important role in the development of cancer. The University of Montreal scientists involved explain how they were able to achieve their discovery by using cutting edge microscopy techniques to visualize telomerase molecules in real time in living cells in Molecular Cell on December 9, 2011. "Each time our...

2011-11-04 21:25:09

Scientists of the German Cancer Research Center have discovered an alternative mechanism for the extension of the telomere repeat sequence by DNA repair enzymes. The ends of the chromosomes, the telomeres, are repetitive DNA sequences that shorten every time a cell divides during the process of duplicating its genome. Once the telomeres become very short the cell stops dividing. Thus, telomeres work like a cellular clock that keeps an eye on the number of cell divisions. And once the...

2011-01-13 11:04:00

NEW YORK, Jan. 13, 2011 /PRNewswire/ -- Telomerase Activation Sciences, Inc. (T.A. Sciences) today announced the issuance of U.S. Patent No. 7,846,904 to the Geron Corporation. The patent covers the use of certain compounds to upregulate telomerase expression in cells. T.A. Sciences has exclusive worldwide rights to technology under this patent for nutraceutical and cosmetic applications. "This foundational patent is a validation of the millions of dollars and more than 8 years of...

2010-07-07 12:23:08

A new study suggests that shorter length of leukocyte telomeres "“ chromosome markers of biological aging "“ are associated with an increased risk of cancer and death from cancer, according to a study in the July 7 issue of JAMA. A leukocyte is a type of blood cell. Telomeres are a structure at the end of a chromosome involved in the replication and stability of the chromosome. Genetic factors and environmental stressors can shorten the length of the telomere, and telomere length...

43845c95952f656400fc07c719ca94fb1
2010-06-28 10:45:51

Scientists from the University of Warwick and University Hospitals Coventry and Warwickshire NHS Trust, are the first to directly measure a specific region of DNA in human embryos. The length of this region could be a quality marker for embryonic development. Researchers at the University of Warwick's Warwick Medical School and University Hospital, Coventry, have measured telomeres, regions of repetitive DNA at the ends of a chromosome which protect it from deterioration. Telomeres shorten...

2009-12-01 07:34:12

Intensive exercise prevented shortening of telomeres, a protective effect against aging of the cardiovascular system, according to research reported in Circulation: Journal of the American Heart Association. Researchers measured the length of telomeres "” the DNA that bookends the chromosomes and protects the ends from damage "” in blood samples from two groups of professional athletes and two groups who were healthy nonsmokers, but not regular exercisers. The telomere shortening...

2009-09-01 13:06:37

A process that limits the number of times a cell divides works much differently than had been thought, opening the door to potential new anticancer therapies, researchers at UT Southwestern Medical Center report in the Aug. 7 issue of the journal Cell.Most cells in the human body divide only a certain number of times, via a countdown mechanism that stops them. When the controlling process goes wrong, the cells divide indefinitely, contributing to cancer growth.The number of times a cell...

2009-06-08 15:05:00

HOUSTON, June 8 /PRNewswire/ -- SpectraCell Laboratories, the nation's leading nutritional testing laboratory, now offers the ONLY commercially available telomere analysis in the United States. Telomere testing is an innovative cellular aging test that measures a person's biological age in comparison to their chronological age. Telomeres are sections of DNA at the end of each chromosome that cap genetic material and serve as protective buffers that keep the ends of chromosomes from becoming...


Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.