Sex, the aging immune system, and chronic disease
1Department of Biology, Randolph-Macon College, Ashland, VA 23005, United States.
Cellular Immunology
|February 22, 2015
Summary
Sex differences impact immune system function, influencing autoimmunity and infection risk. Immune aging differs between sexes, with post-menopausal women showing altered disease incidence compared to men.
Area of Science:
- Immunology
- Sex Differences in Immunity
- Aging and Immunity
Background:
- Immune system function varies significantly between males and females, particularly after puberty.
- Females exhibit higher autoimmunity rates but lower infection and chronic inflammation rates.
- Sex hormones, sex chromosome genes, and gendered behaviors contribute to immune dimorphism.
Purpose of the Study:
- To examine sex-based differences in immune system aging.
- To investigate changes in chronic inflammatory and autoimmune disease incidence with age and sex.
Main Methods:
- Comparative analysis of immune system composition and function across different age groups and sexes.
- Review of epidemiological data on autoimmune and chronic inflammatory diseases in men and women.
Main Results:
- Immune system aging may progress faster in males than females.
- Post-menopause, women's chronic inflammatory disease rates increase, nearing or exceeding male rates.
- Autoimmunity incidence decreases in post-menopausal women, becoming comparable to aged males.
Conclusions:
- Significant sex-based divergence exists in immune system aging and disease susceptibility.
- Menopause marks a shift in immune-related disease patterns between sexes.
- Further research is needed on sex-specific immune pathogenesis in aged populations.
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