Understanding the Interaction Between Premature Ageing in HIV and COPD Using Epigenetic Clocks: A Case-Control Study...

Area of Science:

• Gerontology
• Immunology
• Pulmonology

Background:

• Human Immunodeficiency Virus (HIV) infection is now a chronic condition, leading to increased comorbidities and premature aging.
• Chronic inflammation and epigenetic alterations are key factors in premature aging observed in people with HIV.
• Epigenetic clocks, based on DNA methylation, are reliable markers for biological age and mortality prediction, showing alterations in HIV and COPD.

Purpose of the Study:

• To investigate the combined effect of HIV and chronic obstructive pulmonary disease (COPD) on premature aging.
• To analyze epigenetic clocks in individuals with HIV and/or COPD to assess biological age acceleration.
• To determine if HIV and COPD have a synergistic or additive effect on the aging process.

Main Methods:

• A case-control study design comparing four groups: healthy controls, HIV-only, COPD-only, and co-infected HIV/COPD patients.
• Analysis of epigenetic clocks, which measure biological age through DNA methylation patterns.
• Comparison of biological age acceleration across the different study groups.

Main Results:

• The study hypothesizes that individuals with both HIV and COPD will exhibit a greater cumulative aging effect than the sum of their individual effects.
• Epigenetic alterations are expected to be more pronounced in the co-infected group, indicating accelerated biological aging.
• Findings will quantify the impact of co-infection on aging trajectories.

Conclusions:

• The study posits a multiplicative effect of aging between HIV and COPD, suggesting accelerated aging in co-infected individuals.
• If supported, findings could necessitate revised screening protocols for COPD in HIV patients.
• Potential modification of screening strategies may improve early detection and management of COPD in this population.