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Sequencing of Bacterial Microflora in Peripheral Blood: our Experience with HIV-infected Patients
Published on: June 11, 2011
Microbial translocation and cardiometabolic risk factors in HIV infection
Marius Trøseid1, Ingjerd W Manner, Karin K Pedersen
11 Department of Infectious Diseases, Oslo University Hospital , Oslo, Norway .
Insights
Antiretroviral therapy has made HIV chronic, increasing non-AIDS conditions like heart disease. Gut microbial translocation may drive these cardiometabolic risks in HIV patients.
Area of Science:
- Immunology
- Infectious Diseases
- Cardiology
Background:
- Antiretroviral therapy has shifted HIV infection to a chronic condition.
- This transition has increased the burden of non-AIDS-related chronic disorders, including cardiovascular disease.
- The relative risk of myocardial infarction in HIV patients is approximately double that of the general population.
Purpose of the Study:
- To review advances linking HIV-induced gut mucosal alterations and microbial translocation to cardiometabolic risk factors.
- To explore potential HIV-specific pathogenetic mechanisms for these increased risks.
- To inform novel strategies for prophylaxis and treatment.
Main Methods:
- Review of recent scientific literature and studies.
- Analysis of associations between microbial translocation markers and cardiovascular risk factors.
- Exploration of potential pathogenetic links between gut health and cardiovascular outcomes in HIV.
Main Results:
- Markers of microbial translocation are strongly associated with cardiovascular risk factors.
- These include dyslipidemia, insulin resistance, hypertension, coagulation abnormalities, endothelial dysfunction, and carotid atherosclerosis.
- HIV-induced gut mucosal changes may contribute to increased cardiometabolic risk.
Conclusions:
- Microbial translocation is a potential driver of cardiometabolic risk in HIV infection.
- Further research is needed to confirm if targeting gut microbiota can reduce cardiovascular events.
- Understanding these mechanisms is crucial for developing targeted interventions in aging HIV populations.
Abstract:
The widespread access to antiretroviral treatment during the past decades has transformed HIV infection from a lethal disease to a chronic condition, in which the relative burden of non-AIDS-related chronic disorders such as cardiovascular disease, malignancy, renal, liver, and bone disease has increased. The adjusted relative risk for myocardial infarction is reported to be around 2-fold compared to that of the general population, which over time is likely to translate into increased absolute risk in an aging population. Thus, delineating potentially HIV-specific pathogenetic mechanisms is crucial in order to tailor novel strategies for prophylaxis and treatment. This review will focus on advances in the field that possibly link HIV-induced alterations of the gut mucosa and consequent microbial translocation to cardiometabolic risk factors in HIV infection. Recent work suggests that markers of microbial translocation are closely associated with several cardiovascular risk factors such as dyslipidemia, insulin resistance, hypertension, coagulation abnormalities, endothelial dysfunction, and carotid atherosclerosis. Future studies should investigate whether associations between microbial translocation and cardiovascular risk factors will translate into increased risk of acute events, and whether strategies to target gut microbiota and microbial translocation might reduce such a risk.
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