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Anticipation of oxidative damage decelerates aging in virgin female medflies: hypothesis tested by statistical modeling.

Publication ,  Journal Article
Novoseltsev, VN; Carey, J; Liedo, P; Novoseltseva, J; Yashin, AI
Published in: Experimental gerontology
October 2000

Empirical analysis of survival data obtained from large samples of Mediterranean fruit flies shows that the trajectory of the mortality rate for virgin females departs from that for females maintained in mixed sex cages. It increases, decelerates, reaches its maximum, declines and then increases again within the reproductive interval. Non-virgin females, however, display an early-age plateau instead of this dip. We assume that these deviations are produced by the interplay between changes in oxygen consumption associated with reproductive behavior and the antioxidant defense that acts against anticipated oxidative damage caused by reproduction. Since there are no data on antioxidant mechanisms in medflies available that explain the observed patterns of mortality, we develop a model of physiological aging based on oxidative stress theory, which describes age-related changes in oxygen consumption and in antioxidative capacity during the reproductive period. Using this model, we simulate virtual populations of 25,000 virgin and non-virgin flies, calculate the respective mortality rates and show that they practically coincide with those of experimental populations. We show that the hypothesis about the biological support of reproduction used in our model does not contradict experimental data. The model explains how the early-age dip and plateau might arise in the mortality rates of female medflies and why the male mortality pattern does not exhibit such deviations.

Duke Scholars

Published In

Experimental gerontology

DOI

EISSN

1873-6815

ISSN

0531-5565

Publication Date

October 2000

Volume

35

Issue

8

Start / End Page

971 / 987

Related Subject Headings

  • Reproduction
  • Oxygen Consumption
  • Oxidative Stress
  • Models, Statistical
  • Models, Biological
  • Male
  • Longevity
  • Gerontology
  • Female
  • Diptera
 

Citation

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Chicago
ICMJE
MLA
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Novoseltsev, V. N., Carey, J., Liedo, P., Novoseltseva, J., & Yashin, A. I. (2000). Anticipation of oxidative damage decelerates aging in virgin female medflies: hypothesis tested by statistical modeling. Experimental Gerontology, 35(8), 971–987. https://doi.org/10.1016/s0531-5565(00)00165-0
Novoseltsev, V. N., J. Carey, P. Liedo, J. Novoseltseva, and A. I. Yashin. “Anticipation of oxidative damage decelerates aging in virgin female medflies: hypothesis tested by statistical modeling.Experimental Gerontology 35, no. 8 (October 2000): 971–87. https://doi.org/10.1016/s0531-5565(00)00165-0.
Novoseltsev VN, Carey J, Liedo P, Novoseltseva J, Yashin AI. Anticipation of oxidative damage decelerates aging in virgin female medflies: hypothesis tested by statistical modeling. Experimental gerontology. 2000 Oct;35(8):971–87.
Novoseltsev, V. N., et al. “Anticipation of oxidative damage decelerates aging in virgin female medflies: hypothesis tested by statistical modeling.Experimental Gerontology, vol. 35, no. 8, Oct. 2000, pp. 971–87. Epmc, doi:10.1016/s0531-5565(00)00165-0.
Novoseltsev VN, Carey J, Liedo P, Novoseltseva J, Yashin AI. Anticipation of oxidative damage decelerates aging in virgin female medflies: hypothesis tested by statistical modeling. Experimental gerontology. 2000 Oct;35(8):971–987.
Journal cover image

Published In

Experimental gerontology

DOI

EISSN

1873-6815

ISSN

0531-5565

Publication Date

October 2000

Volume

35

Issue

8

Start / End Page

971 / 987

Related Subject Headings

  • Reproduction
  • Oxygen Consumption
  • Oxidative Stress
  • Models, Statistical
  • Models, Biological
  • Male
  • Longevity
  • Gerontology
  • Female
  • Diptera