Background: Previous studies of HIV-infected patients have shown significant associations between highly active antiretroviral therapy (HAART) and increased blood pressure; however, the mechanisms involved are less clear. Therefore, we sought to investigate the potential impact of body fat changes in mediating the effects of HAART on blood pressure changes among people living with HIV.

Methods: Four hundred six consenting patients (≥18 years of age) attending a tertiary HIV clinic in semi-urban Nigeria were recruited between August and November 2014 as part of a cross-sectional study. We performed bias-corrected bootstrap tests of mediation using 95 % confidence intervals (CI) to determine the mediating effects of body mass index and waist circumference (mediators) on the total effects of HAART exposure (primary predictor) on blood pressure (outcome), while controlling for age, sex and other potential confounders.

Results: Waist circumference remained a significant partial mediator of the total effects of HAART exposure on increasing systolic blood pressure (coefficient: 1.01, 95 % CI: 0.33 to 2.52, 11 % mediated) and diastolic blood pressure (coefficient: 0.68, 95 % CI: 0.26 to 1.89, 9 % mediated) after adjusting for age, sex, smoking status, CD4 count and duration of HIV infection. No significant mediating effect was observed with body mass index alone or in combination with waist circumference after adjusting for all potential confounders.

Conclusion: Waist circumference significantly mediates the effects of HAART on blood pressure in persons living with HIV, independent of the role of traditional risk factors. The use of waist circumference as a complementary body fat measure to body mass index may improve the clinical prediction of hypertension in HIV-infected patients on antiretroviral therapy.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4888205PMC
http://dx.doi.org/10.1186/s40249-016-0152-7DOI Listing

Publication Analysis

Top Keywords

blood pressure
28
waist circumference
20
effects haart
16
body fat
12
mediating effects
12
antiretroviral therapy
12
body mass
12
impact body
8
fat changes
8
changes mediating
8

Similar Publications

Background: Hypertension is a major cardiovascular risk factor, yet traditional care often results in suboptimal blood pressure (BP) control at the population level. We implemented a remote hypertension management program that monitored home BP and titrated medications per algorithm. This study assessed the program's long-term effects by examining participants' office BP up to 42 months post-enrollment.

View Article and Find Full Text PDF

Background: Hypertension is a major global health issue. Aldosterone synthase inhibitors (ASIs) have emerged as a promising therapeutic strategy for blood pressure control.

Methods: A thorough search of the MEDLINE and Embase databases up to March 30, 2024, identified randomized trials comparing ASIs with a placebo for hypertension treatment.

View Article and Find Full Text PDF

Background: Elevated blood pressure (BP) prompts immediate emergency department (ED) visits instead of outpatient care, thus constituting a high-weight concern for the ED. This study investigated the short- and long-term outcomes of high BP patients in the ED.

Methods: A retrospective cohort study was conducted at King Abdulaziz University Hospital (KAUH), reviewing ED visits from January to December 2022.

View Article and Find Full Text PDF

Introduction: We examined the associations of carotid intima-media thickness (CIMT), arterial stiffness index (ASI), and pulse pressure (PP) with cerebrovascular disease, cognitive function and decline, and incident cardiovascular diseases (CVD) and dementia in the UK Biobank cohort.

Methods: The study consisted of 42,711 participants (mean age 64.2 years) with brain magnetic resonance imaging (MRI), vascular assessments, and cognitive testing.

View Article and Find Full Text PDF

Background: Elevated blood pressure (BP) in childhood is associated with adult hypertension and arterial stiffness. However, the effect of long-term time in target range (TTR) for BP since childhood on the risk of arterial stiffness in midlife remains unclear.

Objectives: The purpose of this study was to determine the independent association of TTR for systolic blood pressure (SBP) from childhood to midlife with arterial stiffness in adulthood.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!