different between telomere vs senescence
telomere
English
Etymology
Derived from Ancient Greek ????? (télos, “end, extremity”) + Ancient Greek ????? (méros, “part”).
Pronunciation
IPA(key): /?t?l?m???/, /?ti?l?m???/
Noun
telomere (plural telomeres)
- (genetics) Either of the sequences of DNA at each end of a eukaryotic chromosome.
- 2004, Peter M. Lansdorp, 11: Telomeres and Telomere Regulation, Robert Paul Lanza (editor), Handbook of Stem Cells, Volume 2: Adult and Fetal Stem Cells, page 127,
- Chromosome ends or telomeres are composed of guanine-rich repeat sequences and associated proteins. A minimum number of repeats is essential for proper telomere function and to avoid sustained activation of DNA damage pathways that may result in replicative senescence or cell death.
- 2004, Peter M. Lansdorp, 11: Telomeres and Telomere Regulation, Robert Paul Lanza (editor), Handbook of Stem Cells, Volume 2: Adult and Fetal Stem Cells, page 127,
Related terms
- telomerase
- telomeric
Translations
telomere From the web:
- what telomeres do
- what telomeres
- what telomere means
- what telomere erosion
- telomeres what are they
- telomeres what does it mean
- telomere what to eat
- what are telomeres quizlet
senescence
English
Etymology
From Latin sen?scere (“to grow old”).
Pronunciation
- IPA(key): /s?n??s?ns/
Noun
senescence (usually uncountable, plural senescences)
- (biology) The state or process of ageing, especially in humans; old age.
- Synonyms: oldhood, senectitude, vetustity; see also Thesaurus:old age
- (cell biology) Ceasing to divide by mitosis because of shortening of telomeres or excessive DNA damage.
- 2018, University of Edinburgh, "Liver Study Offers Insights into Hard-to-treat Diseases" (9 March 2018), Drug Discovery & Development.
- Tests in mice found that inducing senescence in bile duct cells - mimicking the process seen in human bile duct disease - led to liver scarring and damage of liver function.
- 2018, University of Edinburgh, "Liver Study Offers Insights into Hard-to-treat Diseases" (9 March 2018), Drug Discovery & Development.
- (gerontology) Old age; accumulated damage to macromolecules, cells, tissues and organs with the passage of time.
- (botany) Fruit senescence, leading to ripening of fruit.
- (cytology, of a cell) Condition when the cell ceases to divide.
Related terms
- senescent
- senesce
Translations
See also
- biological immortality
- senility
Further reading
- senescence on Wikipedia.Wikipedia
- cellular senescence on Wikipedia.Wikipedia
senescence From the web:
- what senescence means
- what is senescence in plants
- what is senescence quizlet
- what is senescence in biology
- what causes senescence
- senescent cells
- what is senescence and abscission
- what is senescence in psychology
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