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Applicable life-history and molecular traits for studying the effects of anhydrobiosis on aging in tardigrades
Nagwani, A.K.; Kaczmarek, L.; Kmita, H. (2022). Applicable life-history and molecular traits for studying the effects of anhydrobiosis on aging in tardigrades. Diversity 14(8): 664. https://dx.doi.org/10.3390/d14080664
In: Diversity. MDPI: Basel. ISSN 1424-2818; e-ISSN 1424-2818
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| Trefwoord |
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| Author keywords |
tardigrades, anhydrobiosis, aging, Sleeping Beauty, The Picture of Dorian Gray, life-history traits, cellular traits |
| Auteurs | | Top |
- Nagwani, A.K.
- Kaczmarek, L.
- Kmita, H.
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| Abstract |
Anhydrobiosis is induced by loss of water and indicates dehydration tolerance. Survival of dehydration is possible through changes at different levels of organism organization, including a remarkable reduction in metabolic activity at the cellular level. Thus, anhydrobiosis may be regarded as an anti-aging strategy. Accordingly, two hypotheses named after popular stories, “Sleeping Beauty” and “The Picture of Dorian Gray”, were proposed to explain the effect of anhydrobiosis on aging. The two hypotheses predict the presence (The Picture of Dorian Gray) or absence (Sleeping Beauty) of observable aging symptoms for animals undergoing anhydrobiosis. Predictions of these hypotheses have rarely been tested, and the cellular level has not been addressed. Tardigrades appear to be a useful model for studying the effect of anhydrobiosis on aging, as they are able to enter and survive anhydrobiosis at any stage of life, although not with the same success for all species. In this review, we discuss anhydrobiosis and aging mechanisms as well as tardigrade diversity and indicate possible multilevel markers that can be used to study the impact of anhydrobiosis on tardigrade aging. This review provides data on tardigrade diversity that may also be useful for human aging studies. |
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