Related Experiment Video
Updated: Oct 29, 2025

Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
Published on: November 10, 2017
The Effect of Atorvastatin + Aspirin on the Endothelial Function Differs with Age in Patients with HIV: A
Gerson Gomes Dos Santos Junior1,2, Paulo Sérgio Ramos Araújo1,3, Kaliene Maria Estevão Leite1
1Universidade Federal de Pernambuco - Pós-graduação em Medicina Tropical, Recife, PE - Brasil.
Insights
Older individuals with HIV showed improved brachial artery flow-mediated dilation (FMD) after 6 months of atorvastatin and aspirin treatment. Cardiovascular risk factors were not significantly associated with reduced carotid intima-media thickness (IMT).
Area of Science:
- Cardiovascular medicine
- Infectious diseases
- Pharmacology
Background:
- Patients with HIV have a higher prevalence of cardiovascular disease compared to the general population.
- Understanding factors influencing cardiovascular health in HIV patients is crucial for effective management.
Purpose of the Study:
- To assess factors associated with reduced carotid intima-media thickness (IMT) and increased brachial artery flow-mediated dilation (FMD) in HIV patients.
- To evaluate the impact of atorvastatin plus aspirin over 6 months on vascular markers in HIV-positive individuals.
Main Methods:
- Secondary analysis of a clinical trial involving 38 HIV patients with low cardiovascular risk.
- Carotid and brachial artery ultrasounds were performed before and after 6 months of treatment with atorvastatin + aspirin.
- Patients were categorized into responders (improved IMT and FMD) and non-responders.
Main Results:
- No significant association was found between reduced IMT and risk factors like age, gender, smoking, or time since HIV diagnosis.
- Increased FMD was significantly associated with age in the 40-59 group (OR = 4.37, p = 0.015).
Conclusions:
- Older individuals (40-59 years) were more likely to experience improved FMD.
- Treatment with atorvastatin + aspirin may benefit vascular function in specific HIV patient subgroups.
Background:
Patients with HIV are more likely to present with cardiovascular disease when compared to the general population.
Objective:
This was a case-control study that aimed to assess which factors were associated with a reduction in the carotid intima-media thickness (IMT) and an increase in the brachial artery flow-mediated dilation (FMD) in HIV patients who received atorvastatin + aspirin during a period of 6 months.
Methods:
A secondary analysis of a clinical trial was conducted, which included people living with HIV infection and low cardiovascular risk. A total of 38 patients allocated to the intervention arm and treated for 6 months with a combination of atorvastatin + aspirin were included. All participants underwent a carotid and brachial artery ultrasound, both at the beginning and the end of the study. Cases that responded with an increase of >10% of the brachial dilatation (FMD) and reduction of the carotid intima-media thickness (IMT) were considered cases, and those who did not respond were considered controls. We assessed the factors associated with the positive responses obtained through IMT and FMD.
Results:
A reduction in the IMT was not significantly associated with any of the evaluated risk factors: age (p=0.211), gender (p=0.260), smoking (p=0.131) or time since HIV diagnosis (p=0.836). An increase in the FMD was significantly associated with age amongst those in the 40-59 age group, p = 0.015 (OR = 4.37; 95% CI: 1.07-17.79).
Conclusions:
Older individuals were more likely to present with an increased FMD after 6 months of treatment with atorvastatin + aspirin.
Related Concept Videos
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism
Atherosclerosis III: Management
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption
Lipid-Lowering Drugs: Statins and Miscellaneous Agents
Bioavailability Study Design: Healthy Subjects Versus Patients
Coronary Artery Disease IV: Preventive Measures

