Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Reproductive longevity and increased life expectancy.

J A Brody1, M D Grant, L J Frateschi

  • 1Department of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, 60612-7260, USA. BrodyJ@uic.edu

Age and Ageing
|February 26, 2000
PubMed
Summary

Despite increased female life expectancy, reproductive longevity has not extended. Fertility rates show no increase in births for women aged 50 and over, indicating fixed reproductive aging.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Human cancer cells exhibit protein kinase C-dependent c-erbB-2 transmodulation that correlates with phosphatase sensitivity and kinase activity.

The Journal of biological chemistry·1996
Same author

Covalent linkage between proteins of the inter-alpha-inhibitor family and hyaluronic acid is mediated by a factor produced by granulosa cells.

The Journal of biological chemistry·1996
Same author

Induction of apoptosis in prostatic tumor cell line DU145 by staurosporine, a potent inhibitor of protein kinases.

The Prostate·1996
Same author

People's Republic of China: status of cancer pain and palliative care.

Journal of pain and symptom management·1996
Same author

Hybrid selection of transcribed sequences from microdissected DNA: isolation of genes within amplified region at 20q11-q13.2 in breast cancer.

Cancer research·1996
Same author

Common sequence variants of lipoprotein lipase: standardized studies of in vitro expression and catalytic function.

Biochimica et biophysica acta·1996

Area of Science:

  • Reproductive biology
  • Demography
  • Gerontology

Background:

  • Female life expectancy in developed nations has risen by 30 years during the 20th century.
  • This demographic shift raises questions about potential changes in reproductive timelines.

Purpose of the Study:

  • To investigate whether reproductive longevity has increased in conjunction with extended female life expectancy.
  • To analyze trends in age-specific fertility rates across developed countries.

Main Methods:

  • Analysis of age-specific fertility data from national birth statistics.
  • Inclusion of data from the USA, Canada, Japan, France, Sweden, the UK, and Australia.
  • Focus on fertility trends from 1940 onwards.

Main Results:

Related Experiment Videos

  • Birth rates for women aged 35 and over have demonstrated a decline since 1940.
  • No increase in births has been observed among women aged 50 years and older.
  • In 1990, fertility rates for women aged 50+ ranged from 0.0 to 0.044 per 1000 women, with 0 to 60 total births.

Conclusions:

  • Extended female life expectancy has not resulted in prolonged fertile years.
  • Reproductive senescence appears to be tightly regulated and unaffected by factors increasing longevity.
  • Physiological mechanisms governing reproduction may be fixed within specific age parameters.