Sex Differences in Aging and Associated Biomarkers

Area of Science:

• Gerontology
• Endocrinology
• Immunology

Background:

• Aging is a natural process characterized by declining biological functions, with significant individual variability.
• Homeostatic mechanisms are crucial for healthy aging, and their variability may reflect heterogeneity in the aging process.
• Sex differences are known to influence aging and age-related diseases, necessitating their consideration in aging research.

Purpose of the Study:

• To outline sex differences in key homeostatic domains relevant to aging.
• To explore potential biomarkers of aging and age-related diseases, considering sex-based variations.
• To examine the role of gonadal and adrenal endocrine systems and immune function in sex differences in aging.

Main Methods:

• Review of existing literature on sex differences in aging and homeostasis.
• Analysis of homeostatic mediators as potential biomarkers of aging.
• Consideration of hormonal status (gonadal and adrenal) and immune function in relation to sex differences.

Main Results:

• Significant sex differences exist in homeostatic systems, including endocrine and immune functions.
• These sex differences contribute to variations in aging trajectories and susceptibility to age-related diseases.
• Hormonal status and immune responses are key factors mediating sex-based differences in aging.

Conclusions:

• Understanding sex differences in homeostasis is crucial for identifying reliable biomarkers of healthy aging.
• Sex-specific approaches may be necessary for effective interventions against age-related diseases.
• Further research into sex-based variations in endocrine and immune systems can advance aging science.