Exploring Potential Associations Between HIV Acquisition and Biological Aging: Insights from a Bidirectional...

Area of Science:

• Genetics
• Epidemiology
• Aging Research

Background:

• HIV acquisition is suspected to accelerate biological aging.
• The causal relationship between HIV and aging remains unclear.
• Investigating this link is crucial for understanding disease progression.

Purpose of the Study:

• To investigate the causal associations between HIV acquisition and biological aging.
• To determine if HIV acquisition causes accelerated aging or vice versa.
• To utilize genetic data for causal inference.

Main Methods:

• Mendelian randomization (MR) analysis using genome-wide association study data.
• Biological aging proxied by telomere length (TL) and four epigenetic clocks.
• Four MR methods (IVW, weighted median, MR-Egger, weighted mode) and sensitivity analyses were employed.

Main Results:

• No significant causal association was found between genetically predicted HIV acquisition and biological aging metrics.
• Reverse-direction MR also showed no significant causal effect of biological aging on HIV acquisition.
• Sensitivity analyses confirmed the robustness of these null findings.

Conclusions:

• The study found no clear evidence supporting a causal relationship between HIV acquisition and biological aging.
• The current genetic data does not support a bidirectional causal link.
• Further research is required to elucidate the precise mechanisms and confirm these associations.