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Published on: January 5, 2016
Chronic HIV disease and activation of the coagulation system
1University of Minnesota, Hennepin County Medical Center, 701 Park Avenue, Mail Code G5, Minneapolis, MN 55415, United States.
Insights
Human immunodeficiency virus (HIV) infection alters blood coagulation, increasing risks for non-AIDS complications like thrombosis. Research explores these changes and potential treatments.
Area of Science:
- Hematology
- Infectious Diseases
- Immunology
Background:
- Effective antiretroviral therapy has shifted HIV disease morbidity from AIDS-defining events to non-AIDS complications.
- Persistent coagulation abnormalities are increasingly recognized as a risk factor for thrombotic events in individuals with HIV.
- Understanding these hemostatic changes is crucial for managing long-term HIV care.
Purpose of the Study:
- To investigate the mechanisms underlying altered coagulation in chronic HIV disease.
- To identify the contribution of HIV, antiretroviral therapy, and lifestyle factors to a pro-coagulant state.
- To explore the clinical consequences of HIV-associated coagulation changes.
Main Methods:
- Review of existing literature on HIV, coagulation, and thrombotic disease.
- Analysis of factors contributing to a pro-coagulant state, including tissue factor activity and anticoagulant response.
- Examination of the role of immune activation, vascular disease, and hepatic function in HIV-related hemostatic alterations.
Main Results:
- HIV disease, treatment, and lifestyle factors promote a pro-coagulant state.
- This state involves increased tissue factor activity and a diminished anticoagulant response.
- Systemic immune activation and vascular disease are key contributors to altered coagulation.
Conclusions:
- Coagulation alterations in HIV are linked to persistent immune activation and vascular disease.
- The clinical impact and potential mitigation strategies for HIV-related coagulation changes require further investigation.
- Research continues to focus on the unique aspects of HIV-associated hemostatic changes and therapeutic interventions.
Abstract:
With current effective antiretroviral treatment, the spectrum of morbidity and mortality during chronic HIV disease has shifted away from AIDS defining clinical events. Persistent abnormalities in coagulation appear to contribute to excess risk for a broad spectrum of non-AIDS defining complications, including, but not limited to, venous and arterial thrombotic disease. Mechanisms specific to HIV disease, antiretroviral therapy, and lifestyle or behavioral factors contribute to a pro-coagulant state, in part, through increased tissue factor activity coupled with a paradoxical decline in the anti-coagulant response. Alterations in coagulation biology in the context of HIV disease appear to be largely a consequence of persistent systemic immune activation, micro- and macro-vascular disease, and, potentially, impaired hepatic synthesis of coagulation factors. The clinical consequences of HIV-related changes in coagulation biology, the degree to which they are unique to HIV disease, and whether they can be mitigated through adjunct treatments, remains a focus of current research.
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