Clinical Report: Frailty in HIV linked to inflammation, bone health, T-cell exhaustion
Overview
Frailty in individuals with HIV is associated with inflammatory proteins, altered bone health markers, and T-cell exhaustion. A study involving 120 participants revealed relationships between frailty and various plasma markers, particularly those related to NF-κB signaling.
Background
Frailty is increasingly recognized as a significant concern among individuals living with HIV, often manifesting earlier than in the general population. Understanding the underlying mechanisms, including inflammation and immune function, is crucial for managing health outcomes in this demographic.
Data Highlights
The study included 120 participants with HIV, with half meeting frailty criteria. Key findings included:
Key Findings
19 of 75 plasma markers were significantly associated with frailty, linked to NF-κB signaling.
Frailty was characterized by lower proportions of naïve CD4 and CD8 T cells.
Higher proportions of CD4 T cells expressed immune checkpoint molecules TIGIT and PD-1 in frail individuals.
Osteoprotegerin (OPG) was the soluble marker most strongly linked to T-cell phenotypes among frail participants.
OPG and tumor necrosis factor levels correlated with PD-1 expression and inversely with naïve CD4 T-cell phenotype.
Clinical Implications
The findings suggest that monitoring inflammatory markers and T-cell populations may be important in assessing frailty in individuals with HIV. Clinicians should consider these factors when developing care plans for aging patients with HIV.
Conclusion
This study underscores the complex interplay between inflammation, immune function, and frailty in individuals with HIV, warranting further investigation into causal relationships.
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