HIV and Antiretroviral Therapy Are Independently Associated with Cardiometabolic Variables and Cardiac Electrical Activity in Adults from the Western Cape Region of South Africa
Abstract:Cardiovascular-related complications are on the rise in people with HIV/AIDS (PWH); however, the relationship among HIV and antiretroviral therapy (ART)-related parameters, cardiovascular risk, and cardiac electrical activity in PWH remain poorly studied, especially in sub-Saharan African populations. We investigated whether HIV and ART are associated with cardiometabolic and cardiac electrical activity in PWH from Worcester in the Western Cape Province, South Africa. This was a cross-sectional study with HIV-… Show more
“…Urine samples were analysed to determine microalbuminuria (mg/L) and creatinine (mmol/L) using an enzymatic chemiluminescence method by cobas® 501/502 and cobas® 311/501 analysers (Roche/Hitachi cobas® c systems, Basel, Switzerland), respectively, and the albumin-to-creatinine ratio (ACR) (mg/mmol) was computed. In HIV+ participants, the levels of cluster of differentiation four (CD4)+ T-cell count and viral load (VL) were determined by flow cytometry (FC 500 MPL) with MXP software (Beckman Coulter, Brea, CA, USA) and the COBAS® AmpliPrep/COBAS® TaqMan® HIV-1 Test, v2.0 (Roche Diagnostics Ltd., Burgess Hill, UK), respectively ( 28 ).…”
ObjectiveThis study aimed to study the relationship between auto-antibodies against apolipoprotein A1 (anti-apoA1 IgG), human immunodeficiency virus (HIV) infection, anti-retroviral therapy (ART), and the tryptophan pathways in HIV-related cardiovascular disease.DesignThis case–control study conducted in South Africa consisted of control volunteers (n = 50), people living with HIV (PLWH) on ART (n = 50), and untreated PLWH (n = 44). Cardiovascular risk scores were determined, vascular measures were performed, and an extensive biochemical characterisation (routine, metabolomic, and inflammatory systemic profiles) was performed.MethodsAnti-apoA1 IgG levels were assessed by an in-house ELISA. Inflammatory biomarkers were measured with the Meso Scale Discovery® platform, and kynurenine pathway metabolites were assessed using targeted metabolomic profiling conducted by liquid chromatography-multiple reaction monitoring/mass spectrometry (LC-MRM/MS).ResultsCardiovascular risk scores and vascular measures exhibited similarities across the three groups, while important differences were observed in systemic inflammatory and tryptophan pathways. Anti-apoA1 IgG seropositivity rates were 15%, 40%, and 70% in control volunteers, PLWH ART-treated, and PLWH ART-naïve, respectively. Circulating anti-apoA1 IgG levels were significantly negatively associated with CD4+ cell counts and positively associated with viremia and pro-inflammatory biomarkers (IFNγ, TNFα, MIPα, ICAM-1, VCAM-1). While circulating anti-apoA1 IgG levels were associated with increased levels of kynurenine in both control volunteers and PLWH, the kynurenine/tryptophan ratio was significantly increased in PLWH ART-treated.ConclusionHIV infection increases the humoral response against apoA1, which is associated with established HIV severity criteria and kynurenine pathway activation.
“…Urine samples were analysed to determine microalbuminuria (mg/L) and creatinine (mmol/L) using an enzymatic chemiluminescence method by cobas® 501/502 and cobas® 311/501 analysers (Roche/Hitachi cobas® c systems, Basel, Switzerland), respectively, and the albumin-to-creatinine ratio (ACR) (mg/mmol) was computed. In HIV+ participants, the levels of cluster of differentiation four (CD4)+ T-cell count and viral load (VL) were determined by flow cytometry (FC 500 MPL) with MXP software (Beckman Coulter, Brea, CA, USA) and the COBAS® AmpliPrep/COBAS® TaqMan® HIV-1 Test, v2.0 (Roche Diagnostics Ltd., Burgess Hill, UK), respectively ( 28 ).…”
ObjectiveThis study aimed to study the relationship between auto-antibodies against apolipoprotein A1 (anti-apoA1 IgG), human immunodeficiency virus (HIV) infection, anti-retroviral therapy (ART), and the tryptophan pathways in HIV-related cardiovascular disease.DesignThis case–control study conducted in South Africa consisted of control volunteers (n = 50), people living with HIV (PLWH) on ART (n = 50), and untreated PLWH (n = 44). Cardiovascular risk scores were determined, vascular measures were performed, and an extensive biochemical characterisation (routine, metabolomic, and inflammatory systemic profiles) was performed.MethodsAnti-apoA1 IgG levels were assessed by an in-house ELISA. Inflammatory biomarkers were measured with the Meso Scale Discovery® platform, and kynurenine pathway metabolites were assessed using targeted metabolomic profiling conducted by liquid chromatography-multiple reaction monitoring/mass spectrometry (LC-MRM/MS).ResultsCardiovascular risk scores and vascular measures exhibited similarities across the three groups, while important differences were observed in systemic inflammatory and tryptophan pathways. Anti-apoA1 IgG seropositivity rates were 15%, 40%, and 70% in control volunteers, PLWH ART-treated, and PLWH ART-naïve, respectively. Circulating anti-apoA1 IgG levels were significantly negatively associated with CD4+ cell counts and positively associated with viremia and pro-inflammatory biomarkers (IFNγ, TNFα, MIPα, ICAM-1, VCAM-1). While circulating anti-apoA1 IgG levels were associated with increased levels of kynurenine in both control volunteers and PLWH, the kynurenine/tryptophan ratio was significantly increased in PLWH ART-treated.ConclusionHIV infection increases the humoral response against apoA1, which is associated with established HIV severity criteria and kynurenine pathway activation.
“…Electrocardiogram (ECG) abnormalities are more common to PLHIV with or without ART than to HIVnegative people, at the subclinical stage [2], with a prevalence of 57%, aggravated by the therapeutic combinations containing the asymptomatic protease inhibitors [4]. Unfortunately unrecognized for most cases, which progress to heart failure in these patients; and little study in the DRC.The electrocardiogram is an available tool, accessible to practitioners, for the screening of cardiac abnormalities at ART initiation and for monitoring these patients..…”
Section: Introductionmentioning
confidence: 99%
“…Cardiovascular complications are on the rise among people living with HIV/AIDS (PLHIV); However, the relationship between HIV and ART therapy-related parameters, cardiovascular risk (CVR), and cardiac electrical activity in PWH remains understudied, especially in sub-Saharan African (SSA) populations. [2].Cardiovascular complications have now become one of the leading causes of hospitalization among PLHIV treated with ART and of death in developed countries 6-15% [3].…”
Introduction: Electrocardiogram (ECG) abnormalities are common to HIV-infected patients on antiretroviral therapy (ART). However, the relationship between ART, cardiovascular risk and cardiac electrical activity to patients living with HIV (PLWHIV) remains poorly studied in Kinshasa. The objective of this study was to describe the impact of tritherapy on the electrocardiogram of HIV-infected patients. Methods: This was a retrospective, descriptive, evaluative cohort with secondary analysis of a clinical cases serie of 155 HIV-infected patients under ART in the internal medicine department of University hospitals of Kinshasa (UHK) from 2013 to 2020. Results: The mean age of the patients was 54±11 years, with extremes ranging from 16 to 80 years, a sex ratio M/F=1. The dominant comorbidities were High blood pressure (HBP) at 23.4% and Pulmonary tuberculosis at 18. 8%. Dyspnea, HBP and lower limb edema were the main complaints, respectively 29.9%, 22.7% and 20.1%. The majority of patients were treated with TDF+3TC+EFV at 86.4% and a small proportion at 13.6% for TDF+3TC+ LPV/r. A total of 83.1% or 128 HIV-infected patients showed cardiac abnormalities on ECG. These were dominated by Left Ventricular Hypertrophy (LVH) 37%, sinus tachycardia 35% and repolarization disorders (subepicardial ischemia, subendocardial ischemia) 16.2%. With the TDF+3TC+LPV/r regimen, cardiac ECG abnormalities were more observed than with the TDF+3TC+EFV regimen with P<0.05; Right Ventricular Hypertrophy (RHV) at 40.4% with TDF+3TC+LPV/r regimen versus 4.7% with TDF+3TC+EFV P<0.001; myocardial ischaemia observed at 28.3% versus 11.2% with TDF+3TC+EFV regimen P=0.020. Conclusion: Electrocardiographic abnormalities are frequent and polymorphic to PLWHIV under ART (83.1%), often aggravated by protease inhibitors. The ECG should be used as a tool to screen for these abnormalities before and after 6 months of ART initiation.
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