Cold Temperature

Publication Title: 
Cell

Both poikilotherms and homeotherms live longer at lower body temperatures, highlighting a general role of temperature reduction in lifespan extension. However, the underlying mechanisms remain unclear. One prominent model is that cold temperatures reduce the rate of chemical reactions, thereby slowing the rate of aging. This view suggests that cold-dependent lifespan extension is simply a passive thermodynamic process. Here, we challenge this view in C. elegans by showing that genetic programs actively promote longevity at cold temperatures.

Author(s): 
Xiao, Rui
Zhang, Bi
Dong, Yongming
Gong, Jianke
Xu, Tao
Liu, Jianfeng
Xu, X. Z. Shawn
Publication Title: 
Biogerontology

This article examines the suitability of the parthenogenetic marbled crayfish for research on ageing and longevity. The marbled crayfish is an emerging laboratory model for development, epigenetics and toxicology that produces up to 400 genetically identical siblings per batch. It is easily cultured, has an adult size of 4-9 cm, a generation time of 6-7 months and a life span of 2-3 years.

Author(s): 
Vogt, G¸nter
Publication Title: 
Ageing Research Reviews

Caloric restriction (CR) causes a reduction in body temperature (T(b)) which is suggested to contribute to changes that increase lifespan. Moreover, low T(b) has been shown to improve health and longevity independent of CR. In this review we examine the connections between CR, T(b) and mechanisms that influence longevity and ageing.

Author(s): 
Carrillo, Andres E.
Flouris, Andreas D.
Publication Title: 
Journal of Medical Entomology

The continuous culture of mosquitoes is a costly endeavor for vector biology laboratories. In addition to the resources that must be committed to colony maintenance, biological costs, including genetic drift and accidental colony loss, also can occur. Although alternatives do exist, their application to mosquitoes is limited. Mosquito cryopreservation remains elusive, and many important species lack a well-defined diapause. Previously, we demonstrated that cold storing nondiapausing mated adult females of the northern house mosquito, Culex pipiens L.

Author(s): 
Rinehart, Joseph P.
Yocum, George D.
Robich, Rebecca M.
Publication Title: 
Biogerontology

Flies were starved with water before being subjected to various severe stresses (heat, cold, fungal infection, hydrogen peroxide) immediately after starvation or after a delay. Starvation of young and middle-aged flies increased resistance to a long cold stress (0†∞C for up to 48†h), mainly if there was a 2-6†h delay between starvation and the cold stress, but positive effects in old flies were hardly observed. No positive effect was observed on resistance to the other stresses and starvation rather decreased resistance to them.

Author(s): 
Le Bourg, …ric
Publication Title: 
Clinical Science
Author(s): 
Black, S.
Edholm, O. G.
Fox, R. H.
Kidd, D. J.
Publication Title: 
Journal of Applied Physiology
Author(s): 
Kissen, A. T.
Reifler, C. B.
Thaler, V. H.
Publication Title: 
The Journal of Pediatrics
Author(s): 
Kierland, R. R.
Publication Title: 
Psychological Bulletin
Author(s): 
Barber, T. X.
Publication Title: 
British Medical Journal
Author(s): 
Black, S.
Friedman, M.

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