Diabetes, metabolic syndrome and dyslipidemia in people living with HIV in Africa: re-emerging challenges not to be forgotten

Bone Disease in HIV: Need for Early Diagnosis and Prevention

The transformation of HIV into a manageable chronic condition has unveiled new clinical challenges associated with aging-related pathologies, including bone disease. This review explores the intricate relationship between HIV, antiretroviral therapy (ART), and bone disease, highlighting the necessity of early diagnosis and preventative strategies to mitigate the increased risk of osteopenia, osteoporosis, and fractures in people living with HIV (PLWHIV). It synthesizes the current literature to elucidate the multifactorial etiology of bone pathology in this population, that includes direct viral effects, chronic immune activation, ART-associated risks, and the impact of traditional risk factors for bone loss. Through a critical examination of modern diagnostic methods, lifestyle modifications, evidence-based preventive actions, and pharmacological treatments, the necessity for comprehensive management is highlighted, along with recommendations for integrated healthcare approaches vital for achieving optimal patient outcomes. By advocating for a proactive, patient-centered, and multidisciplinary strategy, this review proposes a plan to integrate bone health into standard HIV care through active risk identification, vigilant screening, effective preventive measures, tailored treatments, and informed decision-making, in an effort to ultimately enhance the quality of life for PLWHIV.

Diabetes mellitus and associated risk factors among HIV infected patients on HAART

BACKGROUND

Understanding the impact of disease associations is becoming a priority in Kenya and other countries bearing the load of infectious diseases. With the increased incidences of non-communicable diseases and the endemicity of infectious diseases in Sub-Saharan Africa, their co-existence poses significant challenges to patients, health workers and an overwhelmed health sector. Classical risk factors for diabetes such as physical inactivity and unhealthy diet may not solely explain the current trends, suggesting the role of novel risk factors including infections/inflammation. HIV and its treatment have been identified as potential contributors especially to patients with family history of confirmed diabetes cases. Co-infections frequently observed during HIV infection also significantly influence both the epidemiological and pathophysiological of the link between HIV and diabetes. Understanding the correlates of HIV and diabetes is crucial to inform management and prevention strategies of the twin infections. We therefore aimed to determine the prevalence of diabetes mellitus and risk factors in a population of HIV infected patients on HAART. This study determined the association of diabetes/impaired glucose regulation in the context of HIV-1. A cross-sectional study was conducted at a comprehensive care clinic in Nairobi (Kenya). Participants were screened for diabetes and impaired glucose regulation using random blood glucose and glycated haemoglobin (HbA1c) This paper describes the prevalence of diabetes mellitus in Human Immunodeficiency Virus positive individuals and the associated risk factors. We have demonstrated that family history is a risk factor for diabetes. While age and BMI are known risk factors, they were not associated with diabetes in this study.

Determinants of Metabolic Syndrome Among Patients Receiving Anti-Retro-Viral Treatment in A Tertiary Hospital, Central Ethiopia: Unmatched Case-Control Study

Purpose

Scaling up antiretroviral treatment (ART) reduces morbidity and mortality among people living with HIV/AIDS (PLHA). This success is challenged by the constellation of interrelated metabolic disorders such as metabolic syndrome (MetS). Given the changing ART regimens and schedules, increasing patient age and methodological limitations, existing evidence regarding the determinants of MetS remains inconclusive. Therefore, in the current study, we aimed to identify the determinants of MetS in patients receiving ART at a tertiary hospital in central Ethiopia.

Patient and Methods

We conducted an unmatched case-control study that included 393 patients with a case-to-control ratio of 1 to 2. Data were collected by interviewing patients, reviewing charts, physical examinations, and laboratory testing. The data were entered into Epi-Info version 7.2 and analyzed using SPSS version 26. A binary logistic regression analysis was used to identify the determinants of MetS. The adjusted odds ratio (AOR) with a 95% confidence interval (CI) was used to estimate the strength of the association between MetS and its determinants. Statistical significance was set at p-value < 0.05.

Results

In this study, higher odds of developing MetS were identified among patients aged 40-60 years (AOR 3.75; 95% CI: 1.66-8.49) and those older than 60 years (AOR 6.18; 95% CI: 2.12-17.95) than among those aged < 40 years. Similarly, higher odds were observed among patients who frequently consumed animal source foods than among those who consumed cereals or vegetables (AOR, 1.94; 95% CI, 1.03-3.63), those who had HIV lipodystrophy (AOR 1.73; 95% CI: 1.05-2.86), those who were treated with stavudine (AOR 3.08; 95% CI: 1.89-5.04), and those who were treated with zidovudine (AOR 1.71, 95% CI: 1.02-2.88) compared to their counterparts.

Conclusion

Older age, diet from animal sources, exposure to zidovudine or stavudine, and the presence of lipodystrophy were independent determinants of MetS.

The V-BRCH Project: Strengthening HIV Research Capacity in Nigeria through Intensive Workshops in Implementation Science and Grant Writing

As persons with HIV live longer as the result of antiretroviral therapy, morbidity from HIV-associated noncommunicable diseases (NCDs) is increasing. The Vanderbilt-Nigeria Building Research Capacity in HIV and Noncommunicable Diseases program is a training platform created with the goal of training a cohort of successful Nigerian investigators to become leaders in HIV-associated NCD research. We describe survey findings from two week-long workshops in Kano, Nigeria, where trainees received instruction in implementation science and grant writing. Surveys assessed participants' self-perceived knowledge and confidence in topics taught during these workshops. Thirty-seven participants (all assistant professors) attended the implementation science workshop; 30 attended the grant-writing workshop. Response rates for the implementation science workshop were 89.2% for the preworkshop survey and 91.9% for the postworkshop survey. For the grant-writing workshop, these values were 88.2% and 85.3%, respectively. Improvement in participant knowledge and confidence was observed in every domain measured for both workshops. On average, a 101.4% increase in knowledge and a 118.0% increase in confidence was observed across measured domains among participants in the implementation science workshop. For the grant-writing workshop, there was a 68.8% increase in knowledge and a 70.3% increase in confidence observed. Participants rated the workshops and instructors as effective for both workshops. These workshops improved participants' knowledge and competence in implementation science and grant writing, and provide a model for training programs that aim to provide physician scientists with the skills needed to compete for independent funding, conduct locally relevant research, and disseminate research findings.

Smoothed quantile residual life regression analysis with application to the Korea HIV/AIDS cohort study

BACKGROUND

The residual life of a patient with human immunodeficiency virus (HIV) is of major interest to patients and their physicians. While existing analyses of HIV patient survival focus mostly on data collected at baseline, residual life analysis allows for dynamic analysis based on additional data collected over a period of time. As survival times typically exhibit a right-skewed distribution, the median provides a more useful summary of the underlying distribution than the mean. In this paper, we propose an efficient inference procedure that fits a semiparametric quantile regression model assessing the effect of longitudinal biomarkers on the residual life of HIV patients until the development of dyslipidemia, a disease becoming more prevalent among those with HIV.

METHODS

For estimation of model parameters, we propose an induced smoothing method that smooths nonsmooth estimating functions based on check functions. For variance estimation, we propose an efficient resampling-based estimator. The proposed estimators are theoretically justified. Simulation studies are used to evaluate their finite sample performances, including their prediction accuracy. We analyze the Korea HIV/AIDS cohort study data to examine the effects of CD4 (cluster of differentiation 4) cell count on the residual life of HIV patients to the onset of dyslipidemia.

RESULTS

The proposed estimator is shown to be consistent and normally distributed asymptotically. Under various simulation settings, our estimates are approximately unbiased. Their variances estimates are close to the empirical variances and their computational efficiency is superior to that of the nonsmooth counterparts. Two measures of prediction performance indicate that our method adequately reflects the dynamic character of longitudinal biomarkers and residual life. The analysis of the Korea HIV/AIDS cohort study data shows that CD4 cell count is positively associated with residual life to the onset of dyslipidemia but the effect is not statistically significant.

CONCLUSIONS

Our method enables direct prediction of residual lifetimes with a dynamic feature that accommodates data accumulated at different times. Our estimator significantly improves computational efficiency in variance estimation compared to the existing nonsmooth estimator. Analysis of the HIV/AIDS cohort study data reveals dynamic effects of CD4 cell count on the residual life to the onset of dyslipidemia.

Dyslipidemia among HIV-infected patients in Ethiopia: a systematic review and meta-analysis

BACKGROUND

Dyslipidemia is responsible for more than half of the global ischemic heart disease (IHD) and more than 4 million deaths annually. Assessing the prevalence of dyslipidemia can be crucial in predicting the future disease development and possible intervention strategies. Therefore, this systematic review and meta-analysis was aimed at assessing the pooled prevalence of dyslipidemia in HIV-infected patients.

METHODS

Electronic databases such as EMBASE, Google Scholar, PubMed, Web of Science, ResearchGate, Cochrane Library, and Science Direct were searched for articles and grey literature. All relevant studies found until our search period of May 24, 2023 were included. The Newcastle-Ottawa Quality Assessment Scale was used to assess the quality of the included studies. The data were extracted in Microsoft Excel. The STATA version 14 software was used to conduct the meta-analysis. I2 and Cochran's Q test were employed to assess the presence of heterogeneity between studies. Due to the presence of heterogeneity, a random effect model was used. The publication bias was assessed using the symmetry of the funnel plot and Egger's test statistics. Moreover, subgroup analysis, and sensitivity analysis were also done.

RESULTS

A total of nine studies that reported the prevalence of dyslipidemia were included. The overall pooled prevalence of dyslipidemia among HIV-infected patients in Ethiopia was 67.32% (95% CI = 61.68%-72.96%). Furthermore, the overall pooled estimates of dyslipidemia among ART-taking and treatment-naïve HIV-infected patients were 69.74% (95% CI: 63.68-75.8, I2 = 87.2) and 61.46% (95% CI: 45.40-77.52, I2 = 90.3), respectively. Based on lipid profile fractionations, the pooled estimates for high total cholesterol (TC) were 39.08% (95% CI: 31.16-46.99), high triglycerides were 38.73% (95% CI: 28.58-48.88), high low density lipoprotein (LDL-c) was 28.40% (95% CI: 17.24-39.56), and low high density lipoprotein (HDL-c) was 39.42% (95% CI: 30.47-48.38).

CONCLUSION

More than two-thirds of HIV-infected patients experienced dyslipidemia. Therefore, it's critical to regularly evaluate lipid alterations in HIV-infected patients in order to prevent the onset of atherosclerosis and other cardiovascular problems.

Prevalence and characteristics of metabolic syndrome and its components among adults living with and without HIV in Nigeria: a single-center study

BACKGROUND

Persons living with HIV (PLHIV) now live longer due to effective combination antiretroviral therapy. However, emerging evidence indicates that they may be at increased risk for some cardiometabolic disorders. We compared the prevalence of metabolic syndrome (MetS) and its component disorders between persons living with and without HIV in Nigeria.

METHODS

This was a cross-sectional analysis of baseline data from a prospective cohort study of non-communicable diseases among PLHIV along with age- and sex-matched persons without HIV (PWoH) at the University of Abuja Teaching Hospital Nigeria. We collected sociodemographic and clinical data, including anthropometric measures and results of relevant laboratory tests. MetS was defined using a modification of the third report of the National Cholesterol Education Program Adult Treatment Panel (NCEP ATP III) criteria.

RESULTS

Of the 440 PLHIV and 232 PWoH, women constituted 50.5% and 51.3% respectively. The median age of the PLHIV was 45 years while that of the PWoH was 40 years. The prevalence of MetS was 30.7% (95% CI: 26.4%, 35.2%) and 22.8% (95% CI: 17.6%, 28.8%) among the PLHIV and PWoH respectively (P = 0.026). Independent associations were found for older age (P < 0.001), female sex (P < 0.001), family history of diabetes (P < 0.001), family history of hypertension (P = 0.013) and alcohol use (P = 0.015). The prevalence of component disorders for PLHIV versus PWoH were as follows: high blood pressure (22.3% vs 20.3%), prediabetes (33.8% vs 21.1%), diabetes (20.5% vs 8.2%), high triglycerides (24.5% vs 17.2%), low HDL-Cholesterol (51.1% vs 41.4%), and abdominal obesity (38.4% vs 37.1%). Adjusting for age and sex, prediabetes, diabetes, and low HDL-Cholesterol were significantly associated with HIV status. Duration on antiretroviral therapy, protease inhibitor-based regimen, CD4 count, and viral load were associated with some of the disorders mostly in unadjusted analyses.

CONCLUSION

We found a high burden of MetS and its component disorders, with significantly higher prevalence of dysglycemia and dyslipidemia among PLHIV as compared to PWoH. Integration of strategies for the prevention and management of MetS disorders is needed in HIV treatment settings.

Prevalence of Cardiometabolic Disease Risk Factors in People With HIV Initiating Antiretroviral Therapy at a High-Volume HIV Clinic in Kampala, Uganda

Background

Cardiometabolic diseases are a leading cause of HIV-related morbidity and mortality, yet routine screening is not undertaken in high-burden countries. We aimed to assess the prevalence and risk factors of the metabolic syndrome (MetS) and its components in adult Ugandan people with HIV (PWH) initiating dolutegravir-based antiretroviral therapy (ART).

Methods

We conducted a cross-sectional study using baseline sociodemographic and clinical data of PWH aged ≥18 years enrolled in the Glucose metabolism changes in Ugandan HIV patients on Dolutegravir (GLUMED) study from January to October 2021. MetS was defined as having ≥3 of the following: abdominal obesity, hypertension (HTN), hyperglycemia, elevated triglycerides, and low high-density lipoprotein cholesterol. Multiple logistic regression was used to assess associations between potential risk factors and MetS and its components.

Results

Three hundred nine PWH were analyzed (100% ART-naïve, 59.2% female, median age 31 years, and median CD4 count 318 cells/mm3). The prevalence of MetS was 13.9%. The most common cardiometabolic condition was dyslipidemia (93.6%), followed by abdominal obesity (34.0%), hyperglycemia (18.4%), and HTN (8.1%). In adjusted analysis, MetS was associated with age >40 years (adjusted odds ratio [aOR], 3.33; 95% CI, 1.45-7.67) and CD4 count >200 cells/mm3 (aOR, 3.79; 95% CI, 1.23-11.63). HTN was associated with age >40 years (aOR, 2.96; 95% CI, 1.32-6.64), and dyslipidemia was associated with urban residence (aOR, 4.99; 95% CI, 1.35-18.53).

Conclusions

Cardiometabolic risk factors were common in this young Ugandan cohort of PWH initiating dolutegravir-based ART, underscoring the need for programmatic implementation of surveillance and management of comorbidities in Uganda and similar settings.

Metabolic syndrome among people living with HIV on antiretroviral therapy in Mwanza, Tanzania

BACKGROUND

HIV and antiretroviral drugs, particularly protease inhibitors and nucleoside reverse transcriptase inhibitors, may increase the risk of Metabolic Syndrome (MetS) among people living with HIV (PLHIV). However, following the introduction of better drugs like dolutegravir, data on the burden of MetS are limited. This study aimed to assess the prevalence of MetS and associated factors among PLHIV on antiretroviral therapy (ART) in Tanzania.

METHODS

This was a cross-sectional study among PLHIV aged ≥ 18 years on antiretroviral therapy for ≥ 1 year at Bugando Medical Centre in Mwanza conducted in 2020. Demographic and healthy-lifestyle-related non-communicable disease risk factors data were collected. Additionally, data on lipid profile, blood glucose, blood pressure, and waist circumference were collected for analysis of MetS according to the International Diabetes Federation criteria. Factors associated with MetS were assessed using logistic regression. A P ≤ 0.05 was considered statistically significant.

RESULTS

Data for 223 participants were analyzed. The mean (SD) age was 44 (± 12) years and 79.8% (178) were females. A majority 78% (174) were on a tenofovir, lamivudine,and dolutegravir regimen. About 12.1% (27) were either current or past smokers, 45.3% (101) were past alcohol drinkers, 22.9% (51) were current drinkers, 12.1% (27) reported taking ≥ 5 servings of vegetables and fruits per day and 5.8% (13) were physically inactive. The prevalence of MetS was 22.9%. The only factors that were associated with Mets were fat mass index and adequate intake of vegetables and fruits, (adjusted odds ratio (aOR) 2.9, 95% CI 1.0, 7.9, P = 0.04) and (aOR1.2, 95% CI 1.0, 1.3, P = 0.02), respectively).

CONCLUSION

The prevalence of MetS remains high among PLHIV. Adiposity and adequate fruit and vegetable intake increased the risk. The introduction of new ART regimens shows no effect on MetS prevalence. Research is needed to understand how lifestyle changes could reduce MetS in PLHIV.

Treatment Regimens and Care Models for Older Patients Living with HIV: Are We Doing Enough?

With improved access to antiretroviral therapy throughout the world, people are aging with HIV, and a large portion of the global population of people with HIV (PWH) is now age 50 or older. Older PWH experience more comorbidities, aging-related syndromes, mental health challenges, and difficulties accessing fundamental needs than the population of older adults without HIV. As a result, ensuring that older PWH are receiving comprehensive healthcare can often be overwhelming for both PWH and the providers. Although there is a growing literature addressing the needs of this population, gaps remain in care delivery and research. In this paper, we suggest seven key components to any healthcare program designed to address the needs of older people with HIV: management of HIV, comorbidity screening and treatment, primary care coordination and planning, attention to aging related-syndromes, optimization of functional status, support of behavioral health, and improved access to basic needs and services. We review many of the difficulties and controversies related to the implementation of these components, which include the absence of screening guidelines for this population and the challenges of care integration, and we suggest key next steps.

The prevalence of hyperglycemia and its impact on mortality among people living with HIV in Georgia

BACKGROUND

Life expectancy and quality of life of people living with HIV have been dramatically improved after introducing antiretroviral therapy, and the prevalence of non-communicable diseases has increased. Several studies have found that hyperglycemia with or without type 2 diabetes was associated with poor outcomes in people living with HIV. The study's objective was to determine the prevalence of hyperglycemia and assess its impact on mortality.

MATERIALS AND METHODS

A retrospective cohort study was conducted among people living with HIV diagnosed in 2012-2018 and followed through 2020 at the Infectious Diseases, AIDS and Clinical Immunology Research Center in Tbilisi, Georgia. Primary outcomes of interest included the prevalence of hyperglycemia and mortality. Causes of death were classified according to the Coding of Death in HIV (CoDe) protocol.

RESULTS

Our study included 2914 people living with HIV. Two hundred and forty-two (8.3%) patients had hyperglycemia, with an increasing prevalence by age. Three hundred one (9.7%) participants died over the median 3.71 (IQR: 2.14-5.37) years of follow-up. Among these, 139 (46.2%) were due to AIDS- related causes, 123 (40.9%)-were due to non-AIDS causes, and in 39 (12.9%) cases, the cause of death could not be determined. Overall, the cohort contributed to 11,148 person-years of follow-up (PYFU), translating into a mortality rate of 2.70 deaths per 100 PYFU. The mortality rate was significantly higher among individuals with hyperglycemia-11.17 deaths per 100 PYFU vs 2.07 deaths per 100 PYFU among normoglycemic patients(p<0.0001).

CONCLUSIONS

Hyperglycemia was associated with increased odds of mortality. Screening and management of hyperglycemia should be integrated into routine HIV clinical services as part of a comprehensive care package.

From Diabetes to Atherosclerosis: Potential of Metformin for Management of Cardiovascular Disease

Atherosclerosis is a common cause of cardiovascular disease, which, in turn, is often fatal. Today, we know a lot about the pathogenesis of atherosclerosis. However, the main knowledge is that the disease is extremely complicated. The development of atherosclerosis is associated with more than one molecular mechanism, each making a significant contribution. These mechanisms include endothelial dysfunction, inflammation, mitochondrial dysfunction, oxidative stress, and lipid metabolism disorders. This complexity inevitably leads to difficulties in treatment and prevention. One of the possible therapeutic options for atherosclerosis and its consequences may be metformin, which has already proven itself in the treatment of diabetes. Both diabetes and atherosclerosis are complex metabolic diseases, the pathogenesis of which involves many different mechanisms, including those common to both diseases. This makes metformin a suitable candidate for investigating its efficacy in cardiovascular disease. In this review, we highlight aspects such as the mechanisms of action and targets of metformin, in addition to summarizing the available data from clinical trials on the effective reduction of cardiovascular risks.

Metabolic comorbidities and systemic arterial hypertension: the challenge faced by HIV patientson long-term use of antiretroviral therapy

OBJECTIVE

Our objective was to estimate the frequency of comorbidities and assess its relationship with exposure factors after a long-term of ART use.

METHODS

: A cross-sectional study with PLHIV (≥18 years-old), who initiated ART between 2001-2005 and attended an HIV/AIDS public-referral center (Belo Horizonte/Brazil) was performed. Demographic, clinical, therapeutic and lifestyle data were obtained through interviews, medical charts, public database, routine laboratory exams and bone densitometry. The outcome was the number of comorbidities: hyperglycemia, dyslipidemia, systemic arterial-hypertension (SAH) and low bone mineral density (BMD). Absolute/relative frequencies were calculated. Factors associated with the outcome were assessed by quasi-Poisson regression. RESULTS: Of the 98 participants, 53% were male, 79% over 43 years-old. Moderate physical-activity was observed in 82%, overweight/obesity in 50% and 58% used ART based on two nucleoside reverse transcriptase inhibitors (NRTI) plus one non-nucleoside reverse transcriptase inhibitor (NNRTI). After a mean of 15.6 years of ART exposure, 207 comorbidities were identified and 93% participants presented at least one comorbidity (mean=2.1/participant). The most frequent overlapping was composed by two co-occurrences: dyslipidemia+hyperglycemia or dyslipidemia+SAH, n=36 in each co-occurrence. The quasi-Poisson regression showed an increase of 3% in the number of comorbidities per year of age (OR=1.03;95%CI=1.02-1.04) and 84% among PLHIV on moderate physical-activity (ref=heavy physical-activity) (OR=1.84;95%CI=1.08-3.13).

CONCLUSIONS

Our study shows that the aging slightly contributed to comorbidities. However, the practice of physical-activities is crucial to prevent chronic-diseases. Treatment and preventive measures should be encouraged to diminish the burden of disease and improve quality of life among PLHIV.

Distinct patterns of fasting plasma glucose and lipid profile levels over time in adults tested positive for HIV on HAART in Shanghai, China, revealed using growth mixture models

Objectives

This study sought to identify potential change patterns and predictors of fasting plasma glucose (FPG) and lipid levels after initiating highly active antiretroviral therapy (HAART).

Methods

A retrospective cohort study was conducted on 1,572 patients tested positive for HIV who initiated HAART between January 2010 and October 2020 in Shanghai, China. The growth mixture models (GMM) were used for capturing subgroups of FPG trajectories as well as triglyceride (TG) and total cholesterol (TC) dual-trajectories. Multinomial logistic regression models identified correlates of given trajectories.

Results

The median follow-up time was 2.0 years (IQR 1.0-4.7). Three FPG trajectory subgroups were identified as FPG low-stable (62.3%), medium-stable (30.5%), and high-increasing (7.2%). Furthermore, three subgroups of TG and TC dual-trajectories were identified as TG and TC high-slight increasing (13.7%), low-rapid increasing (27.6%), and a subgroup of medium-stable TC and slight-decreasing TG (58.7%). Older age, high TG, FPG, BMI, CD4 count of <200 at baseline, and initial use of zidovudine (AZT) and protease inhibitors (PIs) helped to identify the class with increasing glucose or lipid metabolism trajectories.

Conclusion

The change patterns of plasma glucose and lipid in patients tested positive for HIV were heterogeneous and tailored interventions should be considered in specific subgroups.

Evaluation of lipid metabolism imbalance in HIV-infected patients with metabolic disorders using high-performance liquid chromatography-tandem mass spectrometry

Human immunodeficiency virus (HIV) infection and highly active antiretroviral therapy use are associated with the disruption of lipid and glucose metabolism. Herein, a sensitive and robust high-performance liquid chromatography-tandem mass spectrometry method for the quantitation of lysophosphatidylcholines (LPCs) and acylcarnitines (ACs) in human blood serum was developed and validated to investigate them as markers of metabolic disorders in HIV-infected patients. Under optimal extraction and detection conditions, the lower limits of quantification reached 5 ng/mL (LPCs) and 0.1 ng/mL (ACs), and precision and accuracy for both intra- and inter-day analyses were generally below 15%. Serum samples were stable for at least six months when stored at - 80 °C and for at least 12 h when stored at 4 °C or 25 °C. We investigated inter-group differences and associations between the biomarkers and observed a particular volatilitytrend of LPCs and ACs for HIV-infected patients with metabolic disorders. Thus, the developed method can be used for the rapid and sensitive quantitation of LPCs and ACs in vivo to further appraise the process of HIV infection, evaluate interveningmeasures, conduct mechanistic investigations, and further study the utility of LPCs and ACs as biomarkers of HIV infection coupled with metabolic disorders.

A study of effect of anti-retroviral therapy regimen on metabolic syndrome in people living with HIV/AIDS: Post hoc analysis from a tertiary care hospital in western India

BACKGROUND AND AIMS

Indian guidelines for anti-retroviral therapy (ART) are changing. More patients are now on protease-inhibitor (PI) based therapy. While the association of dyslipidemia with nucleoside reverse transcriptase (NRTI) based regimens is well-reported, the effect of Tenofovir (TDF) or PIs has not been studied in detail in India. This study looks at the impact of ART regimen on Metabolic Syndrome (MetS) in people living with HIV/AIDS (PLHA).

METHODS

This study is a post hoc analysis of a cross-sectional study in ART clinics of a hospital in India between Dec 2016 and Nov 2018. A total of 1208 PLHA on ART were part of this study. Chi square test, Mann-Whitney U test, logistic regression analysis was done.

RESULTS

The prevalence of MetS is 21.3%. This study found TDF based PI regimens had a two fold risk of MetS against patients of HIV on other ART regimens. Also, risk is significantly higher than both TDF based 2NRTI/NNRTI regimens and AZT based PI regimens.

CONCLUSION

Patients on TDF based PIs have a significantly higher prevalence of MetS. This has significance in India which relies heavily on TDF as a backbone of ART and is seeing increased use of PIs.

Synthesis, Optimization, and Biological Evaluation of Corrinated Conjugates of the GLP-1R Agonist Exendin-4

Corrination is the conjugation of a corrin ring containing molecule, such as vitamin B₁₂ (B12) or B12 biosynthetic precursor dicyanocobinamide (Cbi), to small molecules, peptides, or proteins with the goal of modifying pharmacology. Recently, a corrinated GLP-1R agonist (GLP-1RA) exendin-4 (Ex4) has been shown in vivo to have reduced penetration into the central nervous system relative to Ex4 alone, producing a glucoregulatory GLP-1RA devoid of anorexia and emesis. The study herein was designed to optimize the lead conjugate for GLP-1R agonism and binding. Two specific conjugation sites were introduced in Ex4, while also utilizing various linkers, so that it was possible to identify Cbi conjugates of Ex4 that exhibit improved binding and agonist activity at the GLP-1R. An optimized conjugate (22), comparable with Ex4, was successfully screened and subsequently assayed for insulin secretion in rat islets and in vivo in shrews for glucoregulatory and emetic behavior, relative to Ex4.

Raman-based metabonomics unravels metabolic changes related to a first-line tenofovir-based treatment in a small cohort of South African HIV-infected patients

In addition to immunological disorders, human immunodeficiency virus (HIV) also causes metabolic abnormalities. Though successful in viral suppression and immune restoration, continued use of antiretroviral therapy (ART) has also been linked to the development of several metabolic ailments. Currently, the only clinical markers used to manage and monitor the development of HIV-induced metabolic disorders, disease progression as well as observing individual's response to antiviral treatment are CD4 count, viral loads and several other single variable colometric assays. Despite the common use of these clinical markers, these markers remain unreliable and limited in the ability to monitor the development of metabolic disorders as well as monitor treatment response. Given these limitations, it is imperative to discover and develop reliable biological markers for overall HIV disease management. Here, Raman spectroscopy was used to profile metabolic changes in the plasma of 22 HIV⁺ receiving a first-line tenofovir-based combination antiretroviral therapy compared to their 8 HIV⁺ ART^- and 10 HIV^- counterparts. Multivariate statistical analysis was performed in order to classify the samples into their respective groups and to identify significantly altered metabolites between the control and experimental groups. Orthogonal Projections to Latent Structures Discriminant Analysis (OPLS-DA) discriminant analysis identified significant differences (p < 0.05) in 9 different metabolites. Alterations were identified in spectral regions associated with glucose (1124 cm^-1), lipids/phospholipids (1116 cm^-1, 1098 cm^-1, 1077 cm^-1), proteins (1120 cm^-1), nucleic acids (1081 cm^-1) and phenylalanine (1103 cm^-1). Pathway analysis also revealed 3 significantly altered pathways. This study presented the reproducible nature of Raman spectroscopy in distinguishing between HIV-infected (treated and untreated) and uninfected blood plasma and allowed for the detection and identification of treatment induced metabolite changes. The results obtained in the study may, therefore, give insights into understanding the metabolic effect of HIV therapy.

Metabolic Control and Determinants Among HIV-Infected Type 2 Diabetes Mellitus Patients Attending a Tertiary Clinic in Botswana

PURPOSE

We primarily aimed at determining the prevalence of metabolic syndrome and abnormal individual metabolic control variables in HIV-infected participants as compared to HIV-uninfected participants given current concerns. Our secondary objective was to determine the predictors of metabolic syndrome and individual metabolic control variables among the study participants to guide future management.

PATIENTS AND METHODS

A descriptive, case-matched cross-sectional study for four months from 15th June 2019 to 15th October 2019 at Block 6 Diabetes Reference Clinic in Gaborone, Botswana. We compared the proportions of metabolic syndrome and individual metabolic control variables based on gender and HIV status by means of bivariate analysis (Chi-squared test or Fisher's exact test) to determine factors associated with metabolic control. A p-value of less than 0.05 was considered statistically significant.

RESULTS

Overall, 86% of the study participants were found to have metabolic syndrome by International Diabetes Federation (IDF) criteria with 79.8% among HIV-infected and 89.1% among HIV-negative participants (p-value = 0.018). Older age was significantly associated with metabolic syndrome (p-value = 0.008). Female gender was significantly associated with metabolic syndrome as compared to male gender (P-value < 0.001), and with a statistically significant higher proportion of low HDL-C compared to males (P-value < 0.001). Female participants were significantly more likely to be obese as compared to males (P-value < 0.001). High triglycerides were more common in HIV-infected compared to HIV-negative participants (P-value = 0.004). HIV-negative participants were more likely to be obese as compared to HIV-infected participants (P-value = 0.003).

CONCLUSION

Metabolic syndrome is an appreciable problem in this tertiary clinic in Botswana for both HIV-infected and HIV-negative participants. Future prospective studies are warranted in our setting and similar sub-Saharan settings to enhance understanding of the role played by HAART in causing the metabolic syndrome, and the implications for future patient management.

Chronic hepatitis B-associated liver disease in the context of human immunodeficiency virus co-infection and underlying metabolic syndrome

Globally, a shift in the epidemiology of chronic liver disease has been observed. This has been mainly driven by a marked decline in the prevalence of chronic hepatitis B virus infection (CHB), with the greatest burden restricted to the Western Pacific and sub-Saharan African regions. Amidst this is a growing burden of metabolic syndrome (MetS) worldwide. A disproportionate co-burden of human immunodeficiency virus (HIV) infection is also reported in sub-Saharan Africa, which poses a further risk of liver-related morbidity and mortality in the region. We reviewed the existing evidence base to improve current understanding of the effect of underlying MetS on the development and progression of chronic liver disease during CHB and HIV co-infection. While the mechanistic association between CHB and MetS remains poorly resolved, the evidence suggests that MetS may have an additive effect on the liver damage caused by CHB. Among HIV infected individuals, MetS-associated liver disease is emerging as an important cause of non-AIDS related morbidity and mortality despite antiretroviral therapy (ART). It is plausible that underlying MetS may lead to adverse outcomes among those with concomitant CHB and HIV co-infection. However, this remains to be explored through rigorous longitudinal studies, especially in sub-Saharan Africa. Ultimately, there is a need for a comprehensive package of care that integrates ART programs with routine screening for MetS and promotion of lifestyle modification to ensure an improved quality of life among CHB and HIV co-infected individuals.

The Patient-Provider Continuum of Care: Narratives of People Living With Comorbid HIV and Diabetes in Northern Thailand

Background:

Among South-East Asia Region countries, Thailand has a high prevalence of HIV with an increasing significant comorbidity of diabetes mellitus (DM).

Objective:

Guided by syndemics, the purpose of this qualitative study is to develop insight into the experience of patients living with comorbid HIV and DM in Northern Thailand for quality improvement.

Methods:

Interviews were conducted in 2 groups for content analysis: (1) people living with comorbid HIV and DM and (2) health-care staff providing care to patients living with the comorbidity.

Results:

Participants’ (N = 12) ages ranged from 42 to 56 (mean = 49). Health staff (N = 12) generated complementary narratives. All participants reported onset of diabetes after discovering they were HIV infected. Content analysis revealed emergent themes regarding (1) knowledge and perceptions and (2) management framed by syndemics and chronicity.

Conclusion:

Findings suggest routine training for patient education and provider integration of care. Macrosocial factors such as limited access and resources and biological factor such as drug interactions are noted as key considerations for future interventions and alterations in the care for patients with comorbid HIV and DM.

Metabolic Syndrome in HIV-patients in Antiretroviral Therapy

INTRODUCTION

The global prevalence of metabolic syndrome (MS) among people living with HIV/AIDS varies from 20% to 33%.

OBJECTIVE

to estimate the prevalence of metabolic syndrome and associated factors in a group of HIV-infected patients on antiretroviral therapy.

METHODS

This is a cross-sectional study with HIV-infected patients from a reference center in Bahia, Brazil. We evaluated clinical, socio-demographic and anthropometric data. MS was defined according to the guidelines of International Diabetes Federation.

RESULTS

We evaluated 152 patients with mean age of 47.3±11.6 years, 59.2% male. The main comorbidities detected were diabetes (3.3%) hypertriglyceridemia (9.3%) and metabolic syndrome (MS,38.2%). Patients with MS were predominantly women (55.2% vs 31.9%; p=0.005), older [52.1 (10.4) vs 44.3 (11.3); p<0.001], and had overweight (74.1% vs 23.4%; p<0.001). After multivariate analysis MS remained associated with age (OR = 1.076; 95% CI: 1.030 - 1.125), female sex (OR = 2.452; 95% CI: 1.114 - 5.374) and family history of hypertension (OR = 3.678; 95% CI: 1.431 - 9.395).

CONCLUSION

Almost half of the HIV-infected patients in Bahia presents with MS which seems to be driven by classical risk factors.

Strengthening integration of chronic care in Africa: protocol for the qualitative process evaluation of integrated HIV, diabetes and hypertension care in a cluster randomised controlled trial in Tanzania and Uganda

INTRODUCTION

In sub-Saharan Africa, the burden of non-communicable diseases (NCDs), particularly diabetes mellitus (DM) and hypertension, has increased rapidly in recent years, although HIV infection remains a leading cause of death among young-middle-aged adults. Health service coverage for NCDs remains very low in contrast to HIV, despite the increasing prevalence of comorbidity of NCDs with HIV. There is an urgent need to expand healthcare capacity to provide integrated services to address these chronic conditions.

METHODS AND ANALYSIS

This protocol describes procedures for a qualitative process evaluation of INTE-AFRICA, a cluster randomised trial comparing integrated health service provision for HIV infection, DM and hypertension, to the current stand-alone vertical care. Interviews, focus group discussions and observations of consultations and other care processes in two clinics (in Tanzania, Uganda) will be used to explore the experiences of stakeholders. These stakeholders will include health service users, policy-makers, healthcare providers, community leaders and members, researchers, non-governmental and international organisations. The exploration will be carried out during the implementation of the project, alongside an understanding of the impact of broader structural and contextual factors.

ETHICS AND DISSEMINATION

Ethical approval was granted by the Liverpool School of Tropical Medicine (UK), the National Institute of Medical Research (Tanzania) and TASO Research Ethics Committee (Uganda) in 2020. The evaluation will provide the opportunity to document the implementation of integration over several timepoints (6, 12 and 18 months) and refine integrated service provision prior to scale up. This synergistic approach to evaluate, understand and respond will support service integration and inform monitoring, policy and practice development efforts to involve and educate communities in Tanzania and Uganda. It will create a model of care and a platform of good practices and lessons learnt for other countries implementing integrated and decentralised community health services.

TRIAL REGISTRATION NUMBER

ISRCTN43896688; Pre-results.

Predictors of Metabolic Syndrome Among People Living with HIV in Gedeo-Zone, Southern-Ethiopia: A Case-Control Study

Background

Intensive access to antiretroviral therapy improved the prognosis of HIV. As a result, a non-communicable disease risk marker known as metabolic syndrome (MS) has emerged. It is a public health issue in sub-Saharan Africa including Ethiopia. However, there is little literature on predictors of MS among people living with HIV (PLHIVs) in the study area context.

Purpose

To identify predictors of metabolic syndrome among PLHIVs, Gedeo Zone, Southern-Ethiopia.

Methods

Health institutions-based unmatched case–control study was conducted. All HIV-infected adult persons who are receiving routine care in the randomly selected two hospitals and two health centers of the Gedeo zone, southern Ethiopia were involved in the study, conducted from December 29^th, 2017, to January 22^nd, 2019. PLHIVs diagnosed with MS using ATP III criteria were considered as a case, and subjects free of MS in the survey were enrolled as controls. Binary logistic regression was employed to identify predictors of MS.

Results

A total of 633 (139 cases and 494 controls) PLHIVs were included in the study. The multivariable analysis result found that age (AOR=1.09, 95% CI (1.05–1.12)); educational status being completed secondary school (AOR=0.22, 95% CI (0.02–0.42)); occupational status being of students (AOR=0.11, 95% CI (0.24–0.51)); wealth index being in the middle quintile (AOR=0.22, 95% CI (0.06–0.79)); ART status exposed to ART (AOR=3.07, 95% CI (1.37–6.89)); total physical activity state being physically active (AOR=0.36, 95% CI (0.16–0.79)), and engaged in low levels physical activity (AOR=3.83, 95% CI (1.46–10.05)) were the factors significantly associated with MS.

Conclusion

While education, occupation, wealth index, antiretroviral therapy status, total physical activity, and lower physical activity levels were concluded by the study as modifiable predictors of metabolic syndrome, age was found as a non-modifiable independent risk of metabolic syndrome. There is a need for an ongoing effort to realize an integrated care plan that addresses both the routine care and regular screening programs to reduce the risks associated with MS and its traits in these subjects.

The extents of metabolic syndrome among Antiretroviral Therapy exposed and ART naïve adult HIV patients in the Gedeo-zone, Southern-Ethiopia: a comparative cross-sectional study

Background

HIV infection and Antiretroviral Therapy (ART) has been associated with metabolic syndrome (MS). The prevalence of MS varies substantially between populations and is not yet well-known in sub-Saharan Africa (SSA), including Ethiopia. The current study aims to estimate and evaluate the magnitude of MS among ART exposed and ART naïve HIV-infected patients.

Methods

A comparative cross-sectional design was employed among the randomly chosen PLHIVs from two hospitals and two health centers, found in the Gedeo zone, southern-Ethiopia. Data collection was run beginning from December 29th, 2017 up to January 22nd − 2019, using the WHO steep tool; eventually, the completed data entered into Epidata (V-3.1) and exported to SPSS (V^− 22) for analysis. The revised international diabetes federation criterion was used to define MS and its components. The mean, standard deviations and proportions were used as a descriptive summary. Categorical data and the proportion of MS in the two groups were compared using binary logistic regression, and results were reported statistically significant with p-value is less than 5%.

Results

A total of 633 (n = 422 on ART and n = 211 ART-naive) PLHIVS was involved, with an overall response rate of 96.2%. The cumulative proportion of MS was 42.5%(95% CI: 39.2–45.7), with 43.4%(95% CI: 39.1–47.4) among ART exposed and 40.8% (95% CI: 35.5–46.0) among ART naïve patients (P > 0.005). However, the difference was not statistically significant and signified that ART has no association with an increased proportion of MS.

Conclusion

Overall this study demonstrated the presence of an elevated degree of overall MS among PLHIVs. Besides, although the difference was not statistically significant, a relatively higher proportion of MS was realized in the ART exposed than ART naïve groups. Implicated that at the time of the entire test and treatment approaches employed in this target group, routine screening of MS incorporated through HIV care and management system will be a vibrant action.

Impact of Genetic and Nongenetic Factors on Body Mass Index and Waist-Hip Ratio Change in HIV-Infected Individuals Initiating Antiretroviral Therapy

Objective

There is limited data on abdominal obesity and the influence of genetics on weight change after antiretroviral therapy (ART) initiation. We assessed body mass index (BMI) and waist hip ration (WHR) change over time in the Swiss HIV Cohort study (SHCS).

Methods

Mixed-effects models characterizing BMI and WHR change over time in 1090 SHCS participants initiating ART between 2005 and 2015 were developed and used to quantify the influence of demographics, clinical factors, and genetic background.

Results

Individuals with CD4 nadir <100 cells/µL gained 6.4 times more BMI than individuals with ≥200, and 2.8 times more WHR than individuals with ≥100 (P < .001) during the first 1.5 and 2.5 years after ART initiation, respectively. The risk of being overweight or obese after 1.5 years increased with CD4 nadir <100 cells/µL compared to 100–199 (odds ratio [OR], 2.07; 95% confidence interval [CI], 1.63–2.74) and ≥200 (OR, 1.69; 95% CI, 1.26–2.32), persisting after 10 years of ART. The risk of abdominal obesity after 2.5 years increased with CD4 nadir <100 compared to ≥100 (OR, 1.35; 95% CI, 1.17–1.54 [in men]; OR, 1.36; 95% CI, 1.18–1.57 [in women]), persisting after 10 years of ART. No significant differences were found across antiretroviral drug classes or genetic scores.

Conclusions

The risk of general and abdominal obesity increased with CD4 nadir <100 cells/µL. Based on our results, including the genetic background would not improve obesity predictions in HIV-infected individuals.

Diabetes mellitus and its associated risk factors in patients with human immunodeficiency virus on anti-retroviral therapy at referral hospitals of Northwest Ethiopia

BACKGROUND

The use of highly active anti- retroviral therapy (HAART) as well as human immunodeficiency virus (HIV) per se have been shown to be related with diabetes among patients living with HIV. There is limited evidence on the prevalence of diabetes among HIV-infected patients in developing countries like Ethiopia. Therefore, the aim of this study is to determine the prevalence of diabetes among patients living with HIV/AIDS at referral hospitals of Northwest Ethiopia.

MATERIALS AND METHODS

a hospital based cross-sectional study was conducted at referral hospitals of Northwest Ethiopia between February 2019 and April 2019. Using WHO stepwise approach, sociodemographic, behavioral and clinical data were collected from 407 included adult patients. Simple random sampling methods was used to select the study participants. Lipid profiles, fasting blood sugar as well as anthropometric indicators were also measured. SPSS version 25 was used for analysis of data; bivariate and multivariate binary logistic regression analysis was performed.

RESULT

From a total of 415 patients living with HIV deemed eligible for inclusion, 407 with complete data were included in the final analysis giving a response rate of 98%. From 407 study subjects included in the analysis, 161 (39.6%) were men. The prevalence of diabetes mellitus was found to be 8.8% (95% CI 6.05, 11.55). Multivariate logistic regression analysis revealed that age [AOR (95% CI) 1.04 (1.001,1.084), p < 0.05], educational status [AOR (95% CI) 6.27 (1.72, 22.85), p < 0.05, diploma; AOR (95% CI) 9.64 (2.57, 36.12), p < 0.05, degree and above], triglyceride level [AOR (95% CI) 1.007 (1.003, 1.010), p < 0.01] have shown statistically significant association with odds of diabetes mellitus.

CONCLUSION

The prevalence of diabetes was notably high in patients living with HIV/AIDS. Factors such as increased age, educational status and higher level of serum triglyceride were found to contribute to this high prevalence of diabetes.

C - reactive protein and interleukin - 6 levels among human immunodeficiency virus -infected patients with dysglycemia in Tanzania

BACKGROUND

Chronic inflammation has been associated with dysglycemia among people living with HIV (PLHIV). There is however, limited data regarding this phenomenon in sub-Sahara Africa (SSA). Therefore we assessed the levels of C-reactive protein (CRP) and Interleukin 6 (IL-6) on a cohort of PLHIV and its associations with dysglycemia in Tanzania.

METHODS

We conducted a cross-sectional study at the Infectious Disease Clinic (IDC) in Tanzania from March to May 2018. Purposive sampling was used to identify participants who had an undetectable viral load, were on 1st line anti-retroviral therapy (ART) and had an overnight fast. The WHO stepwise approach for non-communicable disease (NCD) surveillance was used to collect data. Fasting blood glucose and blood glucose after 75 g oral glucose load was measured, and Enzyme-linked immunosorbent assay (ELISA) was used to test for inflammatory markers (IL-6 and CRP). Associations were explored using the Chi square test and binary logistic regression was performed to estimate the odds ratios. A p-value less than 0.05 was considered statistically significant.

RESULTS

A total of 240 participants were enrolled. Forty two percent were overweight/obese (> 25 kg/m²), 89% had a high waist to height ratio. The median ART duration was 8(5-10) years. The prevalence of dysglycemia among our cohort of PLHIV was 32%. High CRP was associated with a 2.05 increased odds of having dysglycemia OR 2.05 (1.15-3.65) (p = 0.01). Taking stavudine was associated with a 1.99 odds of having dysglycemia OR 1.99 (1.04-3.82) (p = 0.03).We did not find a significant association between IL-6 and dysglycemia.

CONCLUSION

High CRP and taking stavudine were significantly associated with dysglycemia among PLHIV with undetectable viral load.

Immune Activation, Inflammation, and Non-AIDS Co-Morbidities in HIV-Infected Patients under Long-Term ART

Despite effective antiretroviral therapy (ART), people living with HIV (PLWH) still present persistent chronic immune activation and inflammation. This condition is the result of several factors including thymic dysfunction, persistent antigen stimulation due to low residual viremia, microbial translocation and dysbiosis, caused by the disruption of the gut mucosa, co-infections, and cumulative ART toxicity. All of these factors can create a vicious cycle that does not allow the full control of immune activation and inflammation, leading to an increased risk of developing non-AIDS co-morbidities such as metabolic syndrome and cardiovascular diseases. This review aims to provide an overview of the most recent data about HIV-associated inflammation and chronic immune exhaustion in PLWH under effective ART. Furthermore, we discuss new therapy approaches that are currently being tested to reduce the risk of developing inflammation, ART toxicity, and non-AIDS co-morbidities.