Hibernation aging and longevity
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Hibernation, Aging and Longevity. Natalia S. Gavrilova Leonid A. Gavrilov Center on Aging, NORC/University of Chicago, 1155 East 60th Street, Chicago, IL 60637. Study of Turkish hamsters, Science, 1981. Hibernation and longevity. a) Longevity of all hamsters in the study.

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Hibernation aging and longevity

Hibernation, Aging and Longevity

Natalia S. Gavrilova

Leonid A. Gavrilov

Center on Aging, NORC/University of Chicago,

1155 East 60th Street, Chicago, IL 60637


Study of turkish hamsters science 1981

Study of Turkish hamsters, Science, 1981


Hibernation and longevity

Hibernation and longevity

a) Longevity of all hamsters in the study.

b) Longevity of the poor, moderate and good hibernators in the study


Hibernation correlates with longevity

Hibernation correlates with longevity

r=0.522

p<0.001


Distribution of deaths in a control and b experimental hamsters

Distribution of deaths in (a) control and (b) experimental hamsters

  • Number of deaths against age at death at intervals of 60 days for

    a) control hamsters (mean = 812 days, median = 843 days)

    b) experimental hamsters (mean = 914 days, median = 884 days)


Hibernation and longevity in bats

Hibernation and Longevity in Bats


Hibernation and longevity in bat species

Hibernation and Longevity in Bat Species

(a) Average longevity for bat species that do and do not hibernate.

  • Numbers indicate sample size in each category.

    (b) Average change in longevity between phylogenically independent comparisons in which hibernation was acquired.


Predictors of longevity in bats based on ancova for species and bivariate analysis of contrasts

Predictors of longevity in bats based on ANCOVA for species and bivariate analysis of contrasts


Hibernation is not continuous

Hibernation is not continuous!

There are cycles of hibernation and short awakening

(every week in ground squirrels)


You don t need to hibernate in order to delay aging

You don't need to hibernate in order to delay aging:

Hibernation signals (darkness) may be sufficient!


Study of siberian hamster

Study of Siberian Hamster


Day length and reproductive success in females of siberian hamsters

Day length and reproductive success in females of Siberian hamsters

A) Reproductive success of long-day (LD), short-day (SD) and short-day pinealectomized (SD-PX) females expressed as the percentage of females mated at 9 mo of age that delivered live litters.

B) Mean + SEM live litter size at birth and weaning.


Short day exposure and delaying reproductive senescence in females of siberian hamster

Short-day exposure and delaying reproductive senescence in females of Siberian hamster

  • Mean + SEM number of primordial follicles per ovary in SD and LD females at 13 and 26 wk of age. Asterisk (*) denotes significant effect of photoperiodic treatment at both ages


Growth curves for hamsters subjected to ld and sd exposure

Growth curves for hamsters subjected to LD and SD exposure

  • Mean + SEM body mass (grams) of LD, SD, and SD-PX females from weaning at Postnatal Day 18 to 40 wk of age.


Conclusion

Conclusion:

Лампочка Ильича ускоряет старение!


Study of black bears

Study of Black Bears


Black bear active and hibernating

Black bear: active and hibernating


Hibernating bears are hot

Hibernating Bears are Hot!

  • Body temperature: 30 - 34 C Reference: Carey HV, Andrews MT, Martin SL.  Mammalian hibernation: cellular and molecular responses to depressed metabolism and low temperature. Physiol Rev. 2003 Oct;83(4):1153-81. Review. PMID: 14506303


Hibernating bears do not experience osteoporosis

Hibernating bears do not experience osteoporosis


Hibernation aging and longevity

What About Humans?


For more information and updates visit our website

For More Information and Updates Visit Our Website:

http://longevity-science.org

You are Welcome to Post Your Comments at our Blog:

http://longevity-science.blogspot.com/


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