Ageing, gerontogenes, and hormesis.
Indian J Exp Biol
;
2000 Jan; 38(1): 1-5
Article
in English
| IMSEAR
| ID: sea-63328
ABSTRACT
Evolutionary theories of ageing and longevity argue against the existence of specific genes that cause ageing. However, genes whose altered activity influences ageing and longevity, may be termed gerontogenes. Several putative gerontogenes have been identified in various ageing systems, including the Drosophila, budding yeast, nematodes and cells in culture. Since ageing is characterized by a progressive failure of maintenance and repair, it is reasoned that genes involved in homeodynamic repair pathways are the most likely candidate gerontogenes. A promising approach for the identification of critical gerontogenic processes is hormesis-like positive effects of stress. Stimulation of various repair pathways by mild stress has significant effects on delaying the onset of various age-associated alterations in cells, tissues and organisms.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Saccharomyces cerevisiae
/
Stress, Physiological
/
Humans
/
Aging
/
Gene Expression Regulation
/
Cellular Senescence
/
Genes, Insect
/
Genes, Helminth
/
Caenorhabditis elegans
/
Drosophila melanogaster
Type of study:
Prognostic study
Language:
English
Journal:
Indian J Exp Biol
Year:
2000
Type:
Article
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