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Quantification of Cerebral Vascular Architecture using Two-photon Microscopy in a Mouse Model of HIV-induced Neuroinflammation
Published on: January 12, 2016
[Carotid artery disease and human immunodeficiency virus (HIV) infection]
C Serna-Candel1, J Portilla, J Matías-Guiu
1Servicio de Neurología, Hospital Clínico San Carlos, Madrid. carserca@hotmail.com
Insights
Human immunodeficiency virus (HIV) infection increases vascular risk. Subclinical atherosclerosis, measured by carotid ultrasound, is more prevalent in HIV patients and linked to traditional risk factors and HIV itself.
Area of Science:
- Cardiology
- Infectious Diseases
- Vascular Medicine
Background:
- Human immunodeficiency virus (HIV) infection is associated with increased vascular risk.
- This risk is exacerbated by traditional vascular risk factors, antiretroviral treatments, and HIV infection-induced metabolic and vascular changes.
Purpose of the Study:
- To analyze the meaning and measurement of subclinical atherosclerosis.
- To identify factors contributing to vascular risk in HIV-infected patients.
- To review evidence on subclinical atherosclerosis within the HIV-positive population.
Main Methods:
- Literature review of current scientific publications.
- Analysis of subclinical atherosclerosis quantification using carotid ultrasound (intima-media thickness and atherosclerotic plaques).
- Comparison of vascular risk markers between HIV-infected patients and HIV-negative controls.
Main Results:
- Carotid ultrasound effectively quantifies subclinical atherosclerosis and predicts vascular events like myocardial infarction and stroke.
- Studies indicate a higher prevalence and progression of subclinical carotid atherosclerosis in HIV-positive individuals compared to controls.
- Increased atherosclerosis in HIV patients is associated with traditional vascular risk factors, antiretroviral therapy, and HIV infection itself.
Conclusions:
- Carotid ultrasound serves as an effective tool for studying atherosclerosis in HIV patients.
- This imaging technique can aid in stratifying vascular risk among individuals with HIV infection.
Introduction:
Human immunodeficiency virus (HIV) infection provides patients an increased vascular risk, related to traditional vascular risk factors and metabolic and vascular disease induced by antiretroviral treatment and HIV infection itself.
Methods:
By reviewing current literature, this article analyses meaning and measurement of subclinical atherosclerosis in general population; factors inducing vascular risk in HIV infected patients; and published evidence about subclinical atherosclerosis in this population.
Results:
Carotid ultrasound measurement of carotid intimamedia thickness and atherosclerotic plaques, as surrogate markers of vascular risk, allows non-invasive quantification of subclinical atherosclerosis and it predicts vascular risk, of acute myocardial infarction or stroke. Studies in HIV-infected patients show different results, due to methodological heterogeneity that difficults comparisons. Most studies found a higher degree and progression of subclinical carotid atherosclerosis in HIV positive patients, compared to non-infected HIV controls, and it is associated to classical vascular risk factors, antiretroviral treatment and HIV infection itself.
Conclusion:
Carotid ultrasound in HIV patients could stratify vascular risk in these patients and it represents an efficacious tool in atherosclerosis study.
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