Objectives: To examine the relationship between human leukocyte antigen (HLA) genotype and body composition changes induced by thymidine analogue nucleoside reverse transcriptase inhibitor (NtRTI) use in HIV-positive individuals.
Design: Data collected during the Simplification with Tenofovir-Emtricitabine (TDF-FTC) or Abacavir-Lamivudine (ABC-3TC) (STEAL) study were analysed to examine the potential association of HLA genotypes with changes in body composition in treatment-experienced HIV-positive individuals.
Methods: Demographic, HIV-related, body composition and HLA genotyping data from the STEAL study were used in this analysis. The mean percentage peripheral fat at study baseline was compared in participants with and without prior NtRTI use. Analyses were also carried out for each HLA supertype strata, for five HLA genes, within the thymidine-exposed group. These comparisons were made using Mann-Whitney rank-sum tests.
Results: Participants with prior NtRTI use had a significantly lower baseline mean peripheral fat percentage compared to those without NtRTI use (31.9 vs. 34.7%; P = 0.0045). However, participants carrying one or more of the three particular HLA supertype alleles, A01, B08 and DQ2, showed no significant difference in mean peripheral fat percentage at baseline by NtRTI use. Among participants with prior NtRTI exposure, there were significant differences in mean peripheral fat by HLA A01, B08 and DQ2 allele expression compared to those without expression of these alleles (A01: 34.91% vs. no A01: 30.3%; P = 0.0087; B08: 36.2% vs. no B08: 31.1%; P = 0.0317; DQ2: 35.16% vs. no DQ2: 30.06%; P = 0.0081).
Conclusion: This analysis suggests that HIV-infected individuals carrying HLA A01, B08 or DQ2 supertype alleles may be resistant to NtRTI-induced peripheral fat loss.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/QAD.0b013e32835ab213 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The influence of high-fat diet on nicotine vapor self-administration, neuronal excitability, and leptin levels in adult mice.
Physiol Behav
January 2025
Department of Biomedical Sciences, Joan C Edwards School of Medicine at Marshall University, 1700 3(rd) Avenue, Huntington, WV 25703, USA. Electronic address:
With the rise in fast-food culture and the continued high numbers of tobacco-related deaths, there has been a great deal of interest in understanding the relationship between high-fat diet (HFD) and nicotine use behaviors. Using adult mice and a patch-clamp electrophysiology assay, we investigated the influence of HFD on the excitability of ventral tegmental area (VTA) dopamine neurons and pyramidal neurons in the medial prefrontal cortex (mPFC) given their role in modulating the reinforcing effects of nicotine and natural rewards. We then examined whether HFD-induced changes in peripheral markers were associated with nicotine use behaviors.
View Article and Find Full Text PDFObesity-associated inflammation is characterized by macrophage infiltration into peripheral tissues, contributing to the progression of prediabetes and type 2 diabetes (T2D). The enzyme 12-lipoxygenase (12-LOX) catalyzes the formation of pro-inflammatory eicosanoids and is known to promote the migration of macrophages, yet its role in obesity-associated inflammation remains incompletely understood. Furthermore, differences between mouse and human orthologs of 12-LOX have limited efforts to study existing pharmacologic inhibitors of 12-LOX.
View Article and Find Full Text PDFALKBH5 alleviates lower extremity arteriosclerosis by regulating ITGB1 demethylation and influencing macrophage polarization.
Heliyon
January 2025
The First Affiliated Hospital of Bengbu Medical University, Department of Vascular Surgery, 287 Changhuai Road, Bengbu, 233004, China.
Objective: M6A methylation-regulated macrophages play an important role in the occurrence and development of arteriosclerosis. However, their role in lower extremity arteriosclerosis remains unclear. Therefore, this study aims to explore the key factors that regulate arteriosclerosis methylation in the lower extremities and the mechanism by which they affect arteriosclerosis by influencing macrophage polarization.
View Article and Find Full Text PDFIntroduction There are controversies about whether women with polycystic ovary syndrome (PCOS) show a disproportionately higher visceral adiposity, and its relevance to their higher cardiometabolic risks. We investigated in women of Asian Indian descent in Mauritius, a population inherently prone to abdominal obesity, whether those with PCOS will show a more adverse cardiometabolic risk profile that could be explained by abnormalities in fat distribution. Methods Young women newly diagnosed with PCOS (n=25) were compared with a reference control cohort (n =139) for the following measurements made after an overnight fast: body mass index (BMI), waist circumference (WC), body composition by dual-energy x-ray absorptiometry, blood pressure and blood assays for glycemic (glucose, HbA1c, insulin) and lipid (triglycerides, cholesterols) profiles.
View Article and Find Full Text PDFTrabecular bone deficits predominate in the appendicular skeleton of midlife women living with HIV: findings from a cross-sectional study in Zimbabwe.
J Bone Miner Res
January 2025
MRC Lifecourse Epidemiology Centre, Human Development and Health, University of Southampton, Southampton, United Kingdom.
HIV-related mortality has fallen due to scale-up of antiretroviral therapy (ART), so more women living with HIV (WLH) now live to reach menopause. Menopausal estrogen loss causes bone loss, as do HIV and certain ART regimens. However, quantitative bone data from WLH are few in Africa.
View Article and Find Full Text PDFWant 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!