Sentences with phrase «organism ages»
The phrase "organism ages" means that a living thing or a living body is getting older and going through the natural process of growing and changing over time. Full definition
Why organisms age differently — the comparative biology of aging — is a growing fascination for scientists.
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Why do organisms age, and why do these diseases rise exponentially with age?
As organisms age NAD + levels drop, which leads to a decrease in mitochondrial health; this in turn leads to age - related health issues.
One theory holds that organisms age because of built - up genetic mutations that aren't weeded out by natural selection — a disease, say, that hits after your reproductive prime.
Progressive shortening of telomeres associated with organism ageing to ageing.
The Ellison Medical Foundation supports basic biomedical research, with a current focus on understanding how humans and other organisms age, and on defining the fundamental biological mechanisms that prevent age - related diseases and disabilities.
[Autophagy 2010] Inhibit autophagy and all living organisms age faster.
Although biologists have long understood that DNA mutations increase sharply as organisms age, nobody is certain whether they happen often enough to prod cells toward uncontrolled, cancerous cell division.
According to the free radical theory of aging (FRTA), organisms age because of accumulated free radical damage to cells and DNA.
And according to a third theory, as organisms age they deteriorate and must spend more energy to repair cell damage — to the detriment of other essential physical functions.
Generally, as an organism ages, not only are there more damaged proteins in need of disposal, but the proteasome itself becomes damaged and less efficient in clearing out the damaged proteins.
«The orchestration of gene expression no longer seemed coordinated as the organism aged and the results were confusing because genes related to the same function were going up and down at the same time,» says Petrascheck.
Because the PP4 DNA of worms is over 90 % identical with that of humans, it is possible that the protein plays a similar role in all animals as a universal regulator of meiosis, particularly as an organism ages.
Perhaps, as organisms age, they lose their ability to silence genes effectively, suggests Leonard P. Guarente of the Massachusetts Institute of Technology.
As organisms age, the function of neurons becomes compromised and this often results in the death of neurons (or neurodegeneration).
«All organisms age,» he explains, «and as a 2013 review on the subject highlights, there are nine hallmarks of aging.
When free radicals kill or damage enough cells in an organism, the organism ages.
When this happens in millions upon millions of cells, the organism itself ages and biological function begins to diminish.