Micronutrients in HIV-positive persons receiving highly active antiretroviral therapy

Effect of Nutritional Supplementation on Illness Outcome in Adolescents with HIV on HAART: A Randomized, Double-Blind Clinical Trial

OBJECTIVE

To assess the effect of macronutrient and micronutrient supplementation on body mass index (BMI), hemoglobin (Hb), CD4 count, triglyceride levels, and morbidity among adolescents with human immunodeficiency virus (HIV) living in India.

METHODS

A prospective, randomized, double-blinded, placebo-controlled trial was conducted among 80 adolescents (10-19 y) with HIV on highly active antiretroviral therapy (HAART) for a minimum of 6 mo using simple randomization. Participants in the intervention arm received 400 kcal and 15 g protein as a powder daily and multivitamin tablets thrice weekly for 3 mo. Those in the placebo arm received a similar-appearing sachet containing 100 kcal and 2 g protein daily and a placebo tablet thrice weekly. Weight, height, BMI, Hb, CD4 count, triglycerides, and number of intercurrent illnesses were measured at 3 and 6 mo.

RESULTS

At 6 mo, the intervention group showed an increase in weight from 36.4 ± 10.9 kg to 39.7 ± 8.5 kg and a significant increase in BMI from 16.6 ± 2.3 kg/m2 to 17.5 ± 2.3 kg/m2. Increase in CD4 count in the placebo arm was more than that in the intervention arm, but the difference between the arms was not statistically significant. Intervention group showed a pronounced rise in Hb from 9.7 ± 2.3 g/dL to 11.4 ± 1.6 g/dL, significant reduction in triglyceride levels from 99.2 ± 92.7 mg/dL to 81.0 ± 12.8 mg/dL and reduction in intercurrent illnesses from 32.5% to none.

CONCLUSIONS

Nutritional supplementation of adolescents with HIV on HAART improves BMI, hemoglobin, and reduces triglyceride levels and intercurrent illnesses.

Nutrition counselling and clinical outcomes in HIV: A systematic review and meta-analysis

BACKGROUND

People living with the HIV (PLHIV) are at an increased risk of various diseases due to a weakened immune system, particularly if they are naïve or poorly adherent to antiretroviral therapy (ART). Nutrients play a critical role in improving immune health, especially among this population. We systematically reviewed the evidence concerning the impact of nutritional counselling on the occurrence of important clinical outcomes among PLHIV.

METHODS

Medical literature databases (PubMed, EMBASE and Web of Science) were searched from inception to October 2022 for relevant published studies (n = 12) of nutritional counselling and HIV-related outcomes in adults on ART. Random-effects meta-analyses were conducted when the exposure-outcome relationships were similar in three or more studies.

RESULTS

Although the methodologies of nutritional intervention varied across all studies, overall, the evidence from the meta-analysis indicates a nsignificant positive association between nutrition counselling and improvements in CD4 cell count, body mass index and low-density lipoprotein concentration. However, the existing literature does not provide enough evidence to establish a significant impact of nutrition counselling on other immune, anthropometric, and metabolic outcomes including viral load, weight, and lean mass due to the differences in the study designs.

CONCLUSION

Well-powered randomized controlled trials are needed that explore the effect of evidence-based, individualized nutrition counselling on HIV-related clinical outcomes.

Potential Drug-Nutrient Interactions of 45 Vitamins, Minerals, Trace Elements, and Associated Dietary Compounds with Acetylsalicylic Acid and Warfarin-A Review of the Literature

In cardiology, acetylsalicylic acid (ASA) and warfarin are among the most commonly used prophylactic therapies against thromboembolic events. Drug-drug interactions are generally well-known. Less known are the drug-nutrient interactions (DNIs), impeding drug absorption and altering micronutritional status. ASA and warfarin might influence the micronutritional status of patients through different mechanisms such as binding or modification of binding properties of ligands, absorption, transport, cellular use or concentration, or excretion. Our article reviews the drug-nutrient interactions that alter micronutritional status. Some of these mechanisms could be investigated with the aim to potentiate the drug effects. DNIs are seen occasionally in ASA and warfarin and could be managed through simple strategies such as risk stratification of DNIs on an individual patient basis; micronutritional status assessment as part of the medical history; extensive use of the drug-interaction probability scale to reference little-known interactions, and application of a personal, predictive, and preventive medical model using omics.

Association between Methylene-Tetrahydrofolate Reductase C677T Polymorphism and Human Immunodeficiency Virus Type 1 Infection in Morocco

Human immunodeficiency virus type 1 (HIV-1) infection varies substantially among individuals. One of the factors influencing viral infection is genetic variability. Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism is a genetic factor that has been correlated with different types of pathologies, including HIV-1. The MTHFR gene encodes the MTHFR enzyme, an essential factor in the folate metabolic pathway and in maintaining circulating folate and methionine at constant levels, thus preventing the homocysteine accumulation. Several studies have shown the role of folate on CD4+ T lymphocyte count among HIV-1 subjects. In this case-control study we aimed to determine the association between the MTHFR C677T polymorphism and HIV-1 infection susceptibility, AIDS development, and therapeutic outcome among Moroccans. The C677T polymorphism was genotyped by polymerase chain reaction followed by fragment length polymorphism digestion in 214 participants living with HIV-1 and 318 healthy controls. The results of the study revealed no statistically significant association between MTHFR C677T polymorphism and HIV-1 infection (P > .05). After dividing HIV-1 subjects according to their AIDS status, no significant difference was observed between C677T polymorphism and AIDS development (P > .05). Furthermore, regarding the treatment response outcome, as measured by HIV-1 RNA viral load and CD4+ T cell counts, no statistically significant association was found with MTHFR C677T polymorphism. We conclude that, in the genetic context of the Moroccan population, MTHFR C677T polymorphism does not affect HIV-1 infection susceptibility, AIDS development, or response to treatment. However, more studies should be done to investigate both genetic and nutritional aspects for more conclusive results.

Metabolomics as a Tool to Investigate HIV/TB Co-Infection

The HIV/AIDS (human immunodeficiency virus/acquired immunodeficiency syndrome) and tuberculosis (TB) pandemics are perpetuated by a significant global burden of HIV/TB co-infection. The synergy between HIV and Mycobacterium tuberculosis (Mtb) during co-infection of a host is well established. While this synergy is known to be driven by immunological deterioration, the metabolic mechanisms thereof remain poorly understood. Metabolomics has been applied to study various aspects of HIV and Mtb infection separately, yielding insights into infection- and treatment-induced metabolic adaptations experienced by the host. Despite the contributions that metabolomics has made to the field, this approach has not yet been systematically applied to characterize the HIV/TB co-infected state. Considering that limited HIV/TB co-infection metabolomics studies have been published to date, this review briefly summarizes what is known regarding the HIV/TB co-infection synergism from a conventional and metabolomics perspective. It then explores metabolomics as a tool for the improved characterization of HIV/TB co-infection in the context of previously published human-related HIV infection and TB investigations, respectively as well as for addressing the gaps in existing knowledge based on the similarities and deviating trends reported in these HIV infection and TB studies.

Serum levels of antioxidants and its supplementation in people living with HIV: integrative review

Objective: To conduct an integrative review of serum levels of antioxidants and the effects of their supplementation on people living with HIV (PLHIV). Methods: A research was performed in the electronic databases LILACS and MEDLINE, using the descriptors "HIV" AND "antioxidants"; 110 publications were identified, 92 of which were available in the MEDLINE database and 3 in the LILACS database. After applying the exclusion criteria, 8 articles were selected for final evaluation.Results: The studies selected for the review were divided into 4 prospective observational studies and 4 clinical trials with supplementation of antioxidants or food sources of antioxidants. We observed that the initiation of antiretroviral therapy and its prolonged use negatively influenced the parameters of oxidative stress, and that deficiency of antioxidants was associated with more significant damage to mitochondrial DNA. Supplementation of foods that are sources of antioxidants, such as dark chocolate and spirulina, has had beneficial effects on serum lipids and antioxidant capacity. Conclusion: Clinical trials with a more robust methodology, supplementation of isolated nutrients, for more extended periods of intervention, and with the assessment of food consumption are necessary to elucidate their effects on oxidative stress in PLHIV faced with factors such as the use of antiretroviral therapy and changes in metabolic rates of this population.

Redox imbalance is related to HIV and pregnancy

Redox imbalance may compromise the homeostasis of physiological processes indispensable to gestational development in HIV-infected women. The present study aims to evaluate markers of the redox system in the development of pregnancy of these women. HIV-positive pregnant women, HIV-negative pregnant women and non-pregnant were studied. Redox markers superoxide dismutase (SOD), catalase (CAT), protein carbonylation and malondialdehyde (MDA) were assessed at first or second trimester, third trimester and postpartum from pregnant and from non-pregnant women. According to the longitudinal analysis model, CAT activity was increased in the postpartum in HIV-positive women and before delivery in HIV-negative women. Increased carbonylation was observed in the pre-delivery period of HIV-negative pregnant women and MDA concentrations were higher in HIV-positive pregnant women compared to those non-infected by HIV at all times. According to the factorial model, higher SOD and CAT activities were observed in HIV-positive women in the initial months of pregnancy and in non-pregnant women. Carbonylation at third trimester was more evident in HIV-negative pregnant women. MDA levels were higher in HIV-positive pregnant women. Increased oxidative stress may occur in HIV-infected pregnant women. Nevertheless, the HIV virus is not solely responsible for this process; instead, mechanisms inherent to the pregnancy seem to play a role in this imbalance.

The Role of Multimicronutrient Supplementation in Pediatric HIV Management in Nigeria: A Randomized Controlled Study

BACKGROUND

We aimed to compare the immunologic and hematologic effects of 3 multimicronutrient supplements in human immunodeficiency virus-positive children in Lagos, Nigeria.

METHODS

This double-blind, randomized controlled study included 190 children, aged 5-12 years, in Lagos, Nigeria. Sixty-four, 63, and 63 participants were assigned to multimicronutrient group A, B, or C, respectively, for 6 months. Supplements A, B, and C contained 7 micronutrients at the recommended daily allowance (RDA) (comparable to standard-of-care multivitamin), 22 micronutrients at the RDA, and 22 micronutrients at 3 times the recommended daily allowance (3RDA), respectively. Using paired sample t tests and factorial repeat-measures analysis of variance (ANOVA), within- and between-group changes in CD4 count and hemoglobin levels were evaluated after 6 months.

RESULTS

After 6 months of supplementation, paired-sample t test showed that CD4 cell count did not significantly differ from baseline for all 3 groups. Between-subject effect also did not significantly differ in the 3 groups after 6 months (factorial repeat-measures ANOVA (F [degrees of freedom {df} = 2, 187] = 0.846; P = .436; partial η 2 = 0.009). Hemoglobin levels were significantly increased after supplementation in all 3 supplement groups. Increases were not significantly different between groups (factorial repeat-measures ANOVA (F [df = 2, 187] = 0.549; P = .591; partial η 2 = 0.006).

CONCLUSIONS

Equivalent effects were observed. After 6 months of supplementation, mean CD4 count was not significantly different between groups. Hemoglobin concentration was significantly increased in all 3 groups, but increase did not differ between groups.

CLINICAL TRIALS REGISTRATION

NCT02552602.

Effect of the anti-retroviral drug, rilpivirine, on human subcutaneous adipose cells and its nutritional management using quercetin

Rilpivirine, a recently developed drug of choice for initial treatment of HIV-1 infection, can greatly reduce HIV-related inflammation, but in turn, may be associated with adverse secondary effects, including disturbances in lipid metabolism and ultimately in adipose tissue distribution and function. In recent years, research findings on the benefits of anti-oxidant foods and supplements have been employed in counter-acting both oxidative stress as well as inflammation in order to reduce the adverse side effects of anti-retroviral therapy. One such natural flavonoid which possesses anti-inflammatory and anti-oxidative properties is quercetin. This study investigated the effect of quercetin in overcoming the side effects incurred due to rilpivirine administration. The results show substantial reduction in the accumulation of triglyceride levels in a dose- and time-dependent manner for adipose cells treated with either rilpivirine or quercetin alone and in combination, as evidenced by morphological pictures and quantitative measurement of triglycerides throughout the differentiation process. Levels of inflammatory markers such as resistin and IL-8 were increased as compared to the untreated cells. No significant changes in leptin were observed on treatment of adipose cells with rilpivirine alone and its levels were almost comparable to control. Levels of oxidative markers like superoxide dismutase, catalase, and glutathione were also decreased. Treatment with quercetin showed a decrease in the inflammatory status and an increase in the oxidative status of adipose cells, thereby exhibiting its anti-inflammatory and anti-oxidative properties. However, further assessment of lipid metabolism and adipose tissue function in patients administered with rilpivirine-based regimes is advisable considering that totally neutral effects of rilpivirine on lipid homeostasis cannot be anticipated from the current study in vitro. It is concluded that rilpivirine causes an anti-adipogenic and pro-inflammatory response pattern but only at high concentrations, whereas quercetin has been observed to decrease inflammation and restore the levels of anti-oxidant enzymes.

Micronutrients, Metabolic Complications, and Inflammation in Ugandan Children With HIV

BACKGROUND

Selenium, zinc, and chromium are essential micronutrients. Their alterations have been associated with HIV disease progression, metabolic complications, and mortality.

METHODS

This is a cross-sectional study in children with perinatally acquired HIV (PHIV, n = 57), HIV-exposed uninfected (HEU, n = 59), and HIV-unexposed uninfected (HIV-, n = 56) children aged 2 to 10 years old, age- and sex-matched, enrolled in Uganda. PHIV were on stable antiretroviral therapy (ART) with undetectable viral load. We measured plasma concentrations of selenium, zinc, and chromium as well as markers of systemic inflammation, monocyte activation, and gut integrity.

RESULTS

Among PHIV children, 93% had viral load ≤20 copies/mL, median CD4 was 37%, and 77% were receiving a nonnucleotide reserve transcriptase regimen. Median age of all participants was 8 years and 55% were girls. Median selenium concentrations were higher in PHIV compared with the HEU and HIV groups (P < 0.001), 46% of children overall had low zinc status (P = 0.18 between groups). Higher selenium, but not chromium or zinc, was associated with lower IL6, sTNFRI and II, and higher beta d glucan, a marker of fungal translocation, zonulin, a marker of gut permeability, oxidized LDL and insulin resistance (P ≤ 0.01).

CONCLUSION

In this cohort of PHIV on ART in Uganda, there is a high prevalence of low zinc status overall. Higher plasma selenium concentrations were associated with lower systemic inflammation and higher gut integrity markers. Although our findings do not support the use of micronutrient supplementation broadly for PHIV in Uganda, further studies are warranted to assess the role of selenium supplements in attenuating heightened inflammation.

Mitochondrial and Oxidative Impacts of Short and Long-term Administration of HAART on HIV Patients

BACKGROUND

There may be a possible link between the use of HAART and oxidative stress-related mitochondrial dysfunction in HIV patients. We evaluated the mitochondrial and oxidative impacts of short and long-term administration of HAART on HIV patients attending the Enugu State University Teaching (ESUT) Hospital, Enugu, Nigeria following short and long-term therapy.

METHODS

96 patients categorized into four groups of 24 individuals were recruited for the study. Group 1 comprised of age-matched, apparently healthy, sero-negative individuals (the No HIV group); group 2 consisted of HIV sero-positive individuals who had not started any form of treatment (the Treatment naïve group). Individuals in group 3 were known HIV patients on HAART for less than one year (Short-term treatment group), while group 4 comprised of HIV patients on HAART for more than one year (Long-term treatment group). All patients were aged between 18 to 60 years and attended the HIV clinic at the time of the study. Determination of total antioxidant status (TAS in nmol/l), malondialdehyde (MDA in mmol/l), CD4+ count in cells/μl, and genomic studies were all done using standard operative procedures.

RESULTS

We found that the long-term treatment group had significantly raised the levels of MDA, as well as significantly diminished TAS compared to the Short-term treatment and No HIV groups (P<0.05). In addition, there was significantly elevated variation in the copy number of mitochondrial genes (mtDNA: D-loop, ATPase 8, TRNALEU uur) in the long-term treatment group.

CONCLUSION

Long-term treatment with HAART increases oxidative stress and causes mitochondrial alterations in HIV patients.

Tualang honey ameliorates viral load, CD4 counts and improves quality of life in asymptomatic human immunodeficiency virus infected patients

This is the first study to report on the effects of honey in asymptomatic HIV positive subjects in ameliorating CD4 count, viral load (VL) and quality of life (QOL). It is a randomized, controlled, open labelled study, comparing the effects of Tualang honey (TH) administration for six months at three different doses: 20 g (THL), 40 g (THI) or 60 g (THH) daily compared with control (no administered treatment, THC). Only asymptomatic HIV positive subjects (n=95) having CD4 count 250-600 cell/ml, not on antiretrovirals were enrolled. Blood, (together with QOL questionnaires administration) were investigated at baseline, three and six months (CD4 cell count) while VL was determined only at baseline and six months. Significant reductions in CD4 counts in THL and THC groups (p= 0.003 for both) were seen with no significant reductions in the CD4 counts in THI and THH groups (p=0.447 and 0.053 respectively). There was improvement in VL in THC and THI (130% and 32% respectively) and reductions in THL and THH (26% and 8% respectively). Within and between group analyses for VL indicated significant differences between THL and THH compared to THC. In addition, significant improvement in QOL of groups which received TH was noted. TH has the potential to improve the QOL (physical and psychological) and CD4 counts. There was a trend of lower VL in asymptomatic HIV subjects following TH administration thus supporting the possible role of TH in boosting the immune system by improving CD4 counts, causing VL reductions in HIV positive subjects.

Relationships between Atherosclerosis and Plasma Antioxidant Micronutrients or Red Blood Cell Polyunsaturated Fatty Acids in People Living with HIV

Background: People living with human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) (PLWH) are at an increased risk of cardiovascular disease. Diet-related factors may contribute. The aim of this pilot study was to determine, in PLWH, the relationship between atherosclerosis assessed by carotid intima-media thickness (CIMT) and (A) plasma antioxidant micronutrients and oxidative stress or (B) red blood cell polyunsaturated fatty acids (RBC PUFA), particularly long chain omega-3 polyunsaturated fatty acids (n-3 PUFA). Methods: (A) In a cross-sectional study, subjects had CIMT evaluated by high resolution carotid artery ultrasound. Plasma was collected for vitamin C, measured by spectrophotometry; and alpha- and gamma-tocopherol, retinol, and malondialdehyde—a marker of oxidative stress—using high pressure liquid chromatography and fluorescence spectrophotometry. (B) In a prospective cohort study, other subjects had RBC PUFA measured at baseline, using gas chromatography, and CIMT assessed at baseline and repeated after 2 years. Clinical data was also collected. Results: (A) 91 PLWH participated. Only alpha- and gamma-tocopherol levels were positively correlated with CIMT. In a multivariate analysis, age and systolic blood pressure were significantly associated with CIMT with gamma-tocopherol near significance (p = 0.053). (B) 69 PLWH participated. At baseline, docosahexaenoic acid (n-3 PUFA) and the ratio of docosahexaenoic acid to arachidonic acid (n-6 PUFA) were significantly and negatively correlated with CIMT. However, a multivariate analysis failed to detect a significant relationship either at baseline or 2 years after. Conclusion: In addition to age and systolic blood pressure, atherosclerosis assessed by CIMT might be associated with higher serum gamma-tocopherol levels. There was a non-significant association between CIMT and RBC n-3 PUFA or the ratio of n-3 to n-6 PUFA.

Nutritional Issues and Positive Living in Human Immunodeficiency Virus/AIDS

Nutritional counseling has been shown to improve dietary intake in individuals with human immunodeficiency virus (HIV)/AIDS. Registered dietitians/nutritionists can individualize diet interventions to optimize effectiveness in treating metabolic consequences of the HIV infection or highly active antiretroviral therapy. Nutrition management for individuals infected with HIV can be helpful in maintaining lean body weight, combating oxidative stress, reducing complications from hyperglycemia and hyperlipidemia, and managing gastrointestinal function. Consideration should be given to including the expertise of a registered dietitian/nutritionist.

Dietary Diversity and Associated Factors among HIV Positive Adult Patients Attending Public Health Facilities in Motta Town, East Gojjam Zone, Northwest Ethiopia, 2017

Introduction. Dietary diversity is defined as the amount of different food groups or foods that are consumed over a specific reference time. The human immune deficiency virus problem remains one of the main public health challenges, especially in low and middle income countries. Nutrition has been linked to both the transmission of human immune deficiency virus and poor outcomes related to human immune deficiency virus. Objective. To assess dietary diversity and associated factors among human immune deficiency virus positive adult patients in Motta administrative town, Northwest Ethiopia, 2017. Methods. A facility based cross-sectional study design was conducted on 410 study participants selected using a stratified sampling technique with proportional allocation. The data were collected using semi-structured and pretested questionnaire. Data were entered into Epi-Data version 3.1 and analysis was performed using SPSS version 20. Descriptive statistics were used to describe the number and percentage of the study variables. The bivariate and multivariable logistic regression analyses were done to identify the independent factors associated with dietary diversity among adult human immune virus (HIV) positive patients. Result. A total of 410 study participants were included in the analysis. Of the total, 121 (29.5%) of adult HIV positive respondents consumed diversified diet with the mean dietary diversity score of 3.2 (SD±1.88). The predominant food item consumed during the study periods was starchy staples (96.1%) and legumes (81.7%). Having means of communication cell phone (mobile phone) [(AOR= 2.13 (1.16, 3.60)], media exposure status in the household [(AOR =1.95 (1.22, 3.11)] and nutrition counselling [(AOR =2.17 (1.09, 4.67)] were significant factors associated with dietary diversified feeding at 95% CI. Conclusion. The study revealed that low dietary diversity score was significant nutritional problem among HIV positive adults in Motta town health facilities. Having mobile cell phone, media exposure status and nutritional counseling were significantly associated with dietary diversity score. Therefore efforts should be strengthened to improve the counseling service at each health institution and encourage the patients to use media for the source of information.

[Dietary intake and cardiovascular risk among people living with HIV/AIDS]

This cross-sectional study evaluated the food intake patterns related to cardiovascular risk disease among people living with HIV/AIDS (PLWHA) with viral suppression and receiving highly active antiretroviral therapy (HAART). Food intake was obtained by the annual food frequency questionnaire, separated into two groups, healthy and unhealthy food related intake and cardiovascular disease. Data were analyzed using Student's t Test for independent samples or the Mann-Whitney U Test and Fisher's exact test, with a significance level of p < 0.05. The sample consisted of 45 individuals with HIV/AIDS (60% female). The intake of unhealthy foods for cardiovascular risk was greater compared to the intake of healthy foods, both in men (3.91 ± 0.26 vs. 2.79 ± 0.32 p = 0.01) and women (3.40 ± 0.23 vs. 2.60 ± 0.29 p = 0.04). Metabolic syndrome prevalence was 33.3% in men and 37% in women. Men presented hypertriglyceridemia (50%) and low HDL (44%) and women presented central obesity (54%, p = 0.05 vs. men) hypercholesterolemia (66.7% p = 0.02 vs. men) and hypertriglyceridemia (46%). Study results indicate the presence of unhealthy food intake patterns and a high prevalence of cardiovascular risk factors in the evaluated subjects.

Inflammation and micronutrient biomarkers predict clinical HIV treatment failure and incident active TB in HIV-infected adults: a case-control study

BACKGROUND

Various individual biomarkers of inflammation and micronutrient status, often correlated with each other, are associated with adverse treatment outcomes in human immunodeficiency virus (HIV)-infected adults. The objective of this study was to conduct exploratory factor analysis (EFA) on multiple inflammation and micronutrient biomarkers to identify biomarker groupings (factors) and determine their association with HIV clinical treatment failure (CTF) and incident active tuberculosis (TB).

METHODS

Within a multicountry randomized trial of antiretroviral therapy (ART) efficacy (PEARLS) among HIV-infected adults, we nested a case-control study (n = 290; 124 cases, 166 controls) to identify underlying factors, based on EFA of 23 baseline (pre-ART) biomarkers of inflammation and micronutrient status. The EFA biomarker groupings results were used in Cox proportional hazards models to study the association with CTF (primary analysis where cases were incident World Health Organization stage 3, 4 or death by 96 weeks of ART) or incident active TB (secondary analysis).

RESULTS

In the primary analysis, based on eigenvalues> 1 in the EFA, three factors were extracted: (1) carotenoids), (2) other nutrients, and (3) inflammation. In multivariable-adjusted models, there was an increased hazard of CTF (adjusted hazard ratio (aHR) 1.47, 95% confidence interval (CI)1.17-1.84) per unit increase of inflammation factor score. In the secondary incident active TB case-control analysis, higher scores of the high carotenoids and low interleukin-18 factor was protective against incident active TB (aHR 0.48, 95% CI 0.26-0.87).

CONCLUSION

Factors identified through EFA were associated with adverse outcomes in HIV-infected individuals. Strategies focused on reducing adverse HIV outcomes through therapeutic interventions that target the underlying factor (e.g., inflammation) rather than focusing on an individual observed biomarker might be more effective and warrant further investigation.

Role of Vitamin A in the Immune System

Vitamin A (VitA) is a micronutrient that is crucial for maintaining vision, promoting growth and development, and protecting epithelium and mucus integrity in the body. VitA is known as an anti-inflammation vitamin because of its critical role in enhancing immune function. VitA is involved in the development of the immune system and plays regulatory roles in cellular immune responses and humoral immune processes. VitA has demonstrated a therapeutic effect in the treatment of various infectious diseases. To better understand the relationship between nutrition and the immune system, the authors review recent literature about VitA in immunity research and briefly introduce the clinical application of VitA in the treatment of several infectious diseases.

HIV/HAART-associated oxidative stress is detectable by metabonomics

Chronic human immunodeficiency virus (HIV) infection, separately and in combination with highly active antiretroviral therapy (HAART) is closely associated with oxidative stress (OS). Most studies demonstrating redox imbalances in HIV-infected individuals have done so using conventional biochemical methodologies. The limited simultaneous detection of multiple OS markers within one sample is a major drawback of these methodologies and can be addressed through the use of metabonomics. HIV-metabonomic studies utilizing biofluids from HAART cohorts as the investigative source, are on the increase. Data from many of these studies identified metabolic markers indicative of HIV-induced OS, usually as an outcome of an untargeted metabonomics study. Untargeted studies cast a wide net for any and all detectable metabolites in complex mixtures. Given the prevalence of OS during HIV infection and antiviral treatment, it is perhaps not surprising that indicators of this malady would become evident during metabolite identification. At times, targeted studies for specific (non-OS) metabolites would also yield OS markers as an outcome. This review examines the findings of these studies by first providing the necessary background information on OS and the main ways in which free radicals/reactive oxygen species (ROS) produced during OS, cause biomolecular damage. This is followed by information on the biomarkers which come about as a result of free radical damage and the techniques used for assaying these stress indicators. The established links between elevated ROS and lowered antioxidants during HIV infection and the subsequent use of HAART is then presented followed by a review of the OS markers detected in HIV metabonomic studies to date. We identify gaps in HIV/HAART-associated OS research and finally suggest how these research gaps can be addressed through metabonomic analysis, specifically targeting the multiple markers of HIV-induced OS.

Socioeconomic correlates of dietary diversity and its association with adherence and psychosocial functioning of people living with HIV in rural Zambia

BACKGROUND

The intersection of nutrition and HIV underscores the importance of adequate food and a diverse diet. In communities with high prevalence of food insecurity and HIV, there is a substantial co-occurrence of low dietary diversity, undernutrition, and adverse health outcomes.

AIM

The aim of this study was to identify correlates of individual dietary diversity (IDD) and its association with health outcomes for people living with HIV (PLHIV) in rural Zambia.

METHODS

The study used a cross-sectional design using data from 101 PLHIV. We calculated IDD using a composite score based on dietary diversity, food frequency, and the relative nutritional importance of different food groups. Adherence was measured using the visual analog scale. Psychosocial functioning was measured using the Structural Barriers to Medication-taking Scale and the Perceived Stress Scale. Data were analyzed using linear and logistic regressions. Multiple imputation was conducted to address missing data.

RESULTS

Staples were the most commonly consumed food group. Income and household size were negatively associated with IDD scores. Assets were positively associated with IDD scores. Residing in Lundazi and having a poor or fair self-rated health were associated with lower IDD scores. IDD was also associated, albeit not significant, with desirable health outcomes, including adherence and lower levels of perceived barriers to pill taking and stress.

CONCLUSIONS

Findings suggest a heterogeneous effect of socioeconomic variables on IDD. Understanding this heterogeneity is important for the design of interventions. Interventions that combine opportunities to generate economic resources with food and nutrition coaching may be appropriate and effective.

Zinc, copper, CD4 T-cell count and some hematological parameters of HIV-infected subjects in Southern Nigeria

Background

Low concentration of trace elements has been associated with poor prognosis and mortality in HIV infection.

Methods

A cross sectional study was conducted among 100 HIV-infected subjects (70 were on ART treatment, while 30 were ART naïve). Fifty (50) apparently healthy controls were enrolled. Concentration of serum levels of zinc and copper was done using atomic absorption spectrometric method, while complete blood count was determined using automated blood analyzer. CD4⁺ T-cell count was done using cyflow cytometer.

Aim and setting

The aim of this study was to investigate the level of some trace elements and some hematological parameters of HIV-seropositive subjects attending University of Calabar Teaching Hospital Clinic as well as prevalence of trace elements deficiency and anemic status and compare same with HIV-seronegative control.

Results

Mean serum zinc, CD4⁺ T-cell count, Hb, PCV, RBC, MXD, were significantly (p < 0.05) reduced in the HIV-infected subjects, while copper/zinc ratio, MCV, MCH and platelet count were significantly (p < 0.05) raised in the HIV-infected subjects. The serum Cu level was comparable (p > 0.05) with the control. ART treatment had no effect on all the parameters assessed except CD4⁺ T-cell count. Twenty five percent (25%), 3% and 56% of the HIV-infected subjects were zinc deficient, copper deficient and anemic, respectively. Gender was found as a predictor of zinc deficiency. Copper and zinc showed weak positive correlation with CD4⁺ T-cell count.

Conclusion

ART treatment did not complement zinc status in HIV infection while improving CD4⁺ T-cell count, hence the need to consider supplementation.

Food Insecurity, HIV Disease Progression and Access to Care Among HIV-Infected Russians not on ART

Food insecurity (FI) has been associated with HIV disease progression among people on antiretroviral therapy (ART), presumably a consequence of poor medication adherence. We assessed whether there is a longitudinal association between FI and two primary outcomes reflecting on HIV disease progression (i.e., CD4 count and time to ART initiation) among people not on ART. Analyses used linear mixed effects and Cox models controlling for confounders. In this cohort (n = 310) FI was common (53%). Most (71.3%) reported past month heavy alcohol use and 37.1% reported past month injection drug use. Only 50 participants initiated ART during the study and mean time to ART was 128 days (SD 120). There were no significant differences in CD4 cell count between the groups with mild/moderate FI or severe FI versus those with no FI [adjusted mean difference, mild/moderate insecurity versus no FI -32.5 (95% CI -94.3, 29.3); severe versus no FI -45.5 (95% CI -124.1, 33.0); global p = 0.42]. We found no significant association between FI and longer time to ART initiation (p = 0.36). Food security is a desirable goal for overall health and shown beneficial for those on ART, however it does not appear to be associated with HIV disease progression among those with high prevalence of substance use and not yet on ART.

Dietary B Vitamins and Depression in Persons with Human Immunodeficiency Virus Infection: The Positive Living with HIV (POLH) Study

B vitamins have beneficial roles in mental health functional impairments; however, research on the role of B vitamins in depression among HIV-infected persons is limited. This study assessed the association between dietary B vitamin intake and depressive symptoms in a cohort of HIV-infected persons. A cross-sectional survey was conducted among 314 HIV-infected persons (180 men and 134 women) aged 18 to 60 y residing in the Kathmandu, Nepal. The Beck Depression Inventory-I was used to measure depression, with a cutoff score of 20 or higher. Dietary intake was assessed using two nonconsecutive 24-h dietary recalls. The relationships between B vitamins and depressive symptoms were assessed using multiple logistic regression analysis. Twenty-six percent participants (men: 23%; women: 29%) were depressed. More than two thirds of participants' B vitamins intake were below the estimated average requirements (EAR) level. Low intake of riboflavin was associated with an increased risk of depression in women but not in men. Multivariate OR (95% CI) for depression in the first, second, and third tertiles of riboflavin in total participants were 1 (reference), 0.87 (0.46-1.64), and 0.49 (0.24-0.98), respectively (p for trend=0.048) and in women were 1 (reference), 0.94 (0.36-2.40), and 0.23 (0.07-0.77), respectively (p for trend=0.020). No clear associations were seen between other B vitamins and depressive symptoms in either sex. Low intake of riboflavin was independently associated with an increased risk of depressive symptoms in all participants and in HIV-infected women. Further prospective studies are warranted to confirm the role of vitamin B vitamins in depressive symptoms among HIV-infected persons.

Elements of kitchen toxicology to exploit the value of traditional (African) recipes: The case of Egusi Okra meal in the diet of HIV+/AIDS subjects

The Egusi Okra soup is a traditional African meal that is considered of high nutritional value and protective against weight loss. We introduce the concept of "kitchen toxicology" to analyse the recipe of the Egusi Okra soup and highlight possible mitigation measures for toxic and/or antinutritional effects in the wide spectrum of health and nutritional needs of HIV+/AIDS subjects. In particular, we focus on toxicants (environmental contaminants, process contaminants, substances leaching from food contact materials) dysregulating the immune status, as well as on interactions between nutrients, contaminants, and/or antinutrients which may lead to secondary/conditioned nutritional deficiencies or imbalances; in their turn, these can modulate the ability to cope with toxicants, and increase nutritional requirements. Recommendations are given for practices preserving the Egusi Okra soup from such risk factors, identifying points of particular attention during meal preparation, from purchase of raw ingredients through to food handling, cooking, storage, and consumption. The Egusi Okra soup is discussed in the context of a diet that is asked to mitigate complications (weight loss, opportunistic infections) and support antiretroviral therapy in African countries with high HIV/AIDS prevalence. The paper discusses how nutritional interventions benefit of the integration of kitchen toxicology practices in everyday life. Toxicological risk assessment is crucial to understand the history and status of the person exposed to or affected by infectious diseases.

Low levels of viral suppression among refugees and host nationals accessing antiretroviral therapy in a Kenyan refugee camp

BACKGROUND

Refugees and host nationals who accessed antiretroviral therapy (ART) in a remote refugee camp in Kakuma, Kenya (2011-2013) were compared on outcome measures that included viral suppression and adherence to ART.

METHODS

This study used a repeated cross-sectional design (Round One and Round Two). All adults (≥18 years) receiving care from the refugee camp clinic and taking antiretroviral therapy (ART) for ≥30 days were invited to participate. Adherence was measured by self-report and monthly pharmacy refills. Whole blood was measured on dried blood spots. HIV-1 RNA was quantified and treatment failures were submitted for drug resistance testing. A remedial intervention was implemented in response to baseline testing. The primary outcome was viral load <5000 copies/mL. The two study rounds took place in 2011-2013.

RESULTS

Among eligible adults, 86% (73/85) of refugees and 84% (86/102) of Kenyan host nationals participated in the Round One survey; 60% (44/73) and 58% (50/86) of Round One participants were recruited for Round Two follow-up viral load testing. In Round One, refugees were older than host nationals (median age 36 years, interquartile range, IQR 31, 41 vs 32 years, IQR 27, 38); the groups had similar time on ART (median 147 weeks, IQR 38, 64 vs 139 weeks, IQR 39, 225). There was weak evidence for a difference between proportions of refugees and host nationals who were virologically suppressed (<5000 copies/mL) after 25 weeks on ART (58% vs 43%, p = 0.10) and no difference in the proportions suppressed at Round Two (74% vs 70%, p = 0.66). Mean adherence within each group in Round One was similar. Refugee status was not associated with viral suppression in multivariable analysis (adjusted odds ratio: 1.69, 95% CI 0.79, 3.57; p = 0.17). Among those not suppressed at either timepoint, 69% (9/13) exhibited resistance mutations.

CONCLUSIONS

Virologic outcomes among refugees and host nationals were similar but unacceptably low. Slight improvements were observed after a remedial intervention. Virologic monitoring was important for identifying an underperforming ART program in a remote facility that serves refugees alongside host nationals. This work highlights the importance of careful laboratory monitoring of vulnerable populations accessing ART in remote settings.

Association Between Food Insecurity and HIV Viral Suppression: A Systematic Review and Meta-Analysis

Although an increasing number of HIV infected people are accessing antiretroviral treatment, many do not achieve complete HIV viral suppression and remain at risk for AIDS and capable of HIV transmission. Food insecurity has been identified as a potential risk factor for poor virologic response, but the association between these factors has been inconsistently documented in the literature. We systematically searched five electronic databases and bibliographies of relevant studies through April 2015 and retrieved 11 studies that met our inclusion criteria, of which nine studies were conducted in North America and the remaining two studies were in Brazil and Uganda respectively. Meta-analyzed results indicated that experiencing food insecurity resulted in 29% lower odds of achieving complete HIV viral suppression (OR = 0.71, 95% CI 0.61-0.82) and this significant inverse association was consistently found regardless of study design, exposure measurement, and confounder adjustment methods. These findings suggest that food insecurity is a potential risk factor for incomplete HIV viral suppression in people living with HIV.

Antioxidant modulation of nevirapine induced hepatotoxicity in rats

HIV/AIDS related mortality has been dramatically reduced by the advent of antiretroviral therapy (ART). However, ART presents with associated adverse effects. One of such adverse effects is hepatotoxicity observed with nevirapine (NVP) containing ART. Since previous studies showed that NVP hepatotoxicity may be due to oxidative stress via generation of oxidative radicals, this study sought to evaluate the protective effects of antioxidants in alleviating NVP induced hepatotoxicity. Rats were divided into 6 groups with 8 animals per group and received doses of the antioxidants jobelyn (10.7 mg/kg/day), vitamin C (8 mg/kg/day), vitamin E (5 mg/kg/day) and/or NVP (6 mg/kg/day) for 60 days. The animals were sacrificed on day 61 by cervical dislocation, blood samples were collected for biochemical and hematological examination. The liver of the sacrificed animals was weighed and subjected to histopathological examination. There was a statistically significant (p<0.05) elevation in MDA level observed in the NVP group as compared with control. The results further showed non-significant decreases in the levels of MDA in the NVP plus antioxidant groups, except vitamin C, when compared with the NVP alone group. Vitamin E and Vitamin E plus C treated groups showed significantly (p<0.05) higher levels of SOD, CAT and GSH. The results also showed statistically significantly (p<0.05) lower levels of ALT and AST in the antioxidant treated groups There was an observed significantly (p<0.05) higher level of TP and urea in the antioxidant treated rats. A significantly (p<0.05) higher white blood cell count was observed in the antioxidant groups. Histopathological assessment of the liver extracted from the rats showed no visible pathology across the groups. Observations from this study suggest a potentially positive modulatory effect of antioxidants and may be indicative for the inclusion of antioxidants in nevirapine containing ART.

Naringin improves zidovudine- and stavudine-induced skeletal muscle complications in rats

Chronic use of nucleoside reverse transcriptase inhibitors (NRTIs) in managing human immunodeficiency virus (HIV) infection has been associated with several complications. Available management options for these complications have yielded controversial results, thus the need to urgently find newer alternatives. Naringin, a plant-derived flavonoid, has been shown to possess antioxidant and antiapoptotic properties which can be exploited in managing NRTI-induced complications. This study therefore investigated the effects of naringin on some NRTI-induced complications. Forty-nine rats (200-250 g) were divided into seven groups and were orally treated with stavudine (d4T)-only, d4T + naringin, d4T + vitamin E, zidovudine (AZT)-only, AZT + naringin, AZT + vitamin E, and distilled water, respectively. Drugs were administered once daily for 56 days, and oral glucose tolerance tests conducted on day 54 of the experiments and rats were thereafter sacrificed on day 56 by halothane overdose. Plasma samples and the left gastrocnemius muscles were stored at -80°C for further analysis. There was significant glucose intolerance, insulin resistance, oxidative stress, and apoptosis in the skeletal muscles of AZT- or d4T-only-treated rats. Naringin, however, significantly reduced fasting blood glucose and fasting plasma insulin concentrations, mitigated glucose intolerance, and insulin resistance in addition to reducing malondialdehyde and carbonyl protein concentrations when coadministered with either NRTIs. Furthermore, naringin improved antioxidant enzyme activities, reduced skeletal muscle BCL-2-associated X protein expression, and improved B-cell lymphoma-2 protein expression compared to AZT- or d4T-only-treated rats. Naringin ameliorated AZT- and d4T-induced complications and therefore should be further investigated as a possible nutritional supplement in managing HIV infection.

Effect of Vitamin B12 and folic acid supplementation on neuropsychiatric symptoms and immune response in HIV-positive patients

BACKGROUND

Micronutrients such as B12 and folic acid deficiencies are found in higher number in HIV-infected patients.

OBJECTIVE

We conducted a study to examine the effect of Vitamin B12 and folic acid supplementation on neuropsychiatric manifestations, CD4 count, and anthropometric measurements in HIV-positive patients.

MATERIALS AND METHODS

Three different groups of HIV patients, namely, HIV patients with tuberculosis, HIV patients with neuropsychiatric manifestations, and asymptomatic HIV patients with 50 patients in each group were included in the study. Baseline and follow-up CD4 count, anthropometric measurements, neuropsychiatric assessments, Vitamin B12, and folic acid estimation were done.

RESULTS

The prevalence of folic acid deficiency was 27.1% in Group I, 31.9% in Group II, and 23.4% in Group III. The prevalence of Vitamin B12 deficiency was 8.16% in Group I, 6.12% in Group II, and 4.16% in Group III. HIV patients with neuropsychiatric manifestations were noted to have the lowest mean mini-mental score. After the supplementation of vitamins, anthropometric measurements, MMSE as well as Hamilton depression scores, improved in all the three groups whereas Hamilton anxiety scores improved only in Group III. The CD4 count also improved in Groups I and II after the supplementation of vitamins.

CONCLUSION

Folic acid deficiency was highest among neuropsychiatric patients. The majority of people who had a folic acid deficiency have shown improvement in their neuropsychiatric assessment scores as well as CD4 count after its supplementation.

Dietary B Vitamins and Serum C-Reactive Protein in Persons With Human Immunodeficiency Virus Infection: The Positive Living With HIV (POLH) Study

BACKGROUND

B vitamins may have beneficial roles in reducing inflammation; however, research on the role of B vitamins in inflammation among HIV-infected persons is lacking.

OBJECTIVE

This study assessed the association between B vitamins and serum C-reactive protein (CRP) concentrations in HIV-infected persons.

METHODS

A cross-sectional survey was conducted among 314 HIV-infected persons (180 men and 134 women) aged 18 to 60 years residing in the Kathmandu, Nepal. High-sensitive and regular serum CRP concentrations were measured by the latex agglutination nephelometry and latex agglutination turbidimetric method, respectively. Dietary intake was assessed using 2 nonconsecutive 24-hour dietary recalls. The relationships between B vitamins and serum CRP concentrations were assessed using multiple regression analysis.

RESULTS

The multivariate-adjusted geometric mean of serum CRP concentrations was significantly decreased with an increasing B vitamins intake across quartiles of niacin (P for trend = .007), pyridoxine (P for trend = .042), and cobalamin (P for trend = .037) in men. In men, the mean serum CRP concentrations in the highest quartiles of niacin, pyridoxine, and cobalamin were 63%, 38%, and 58%, respectively, lower than that in the lowest quartile. In women, the mean serum CRP concentrations in the highest quartiles of riboflavin (P for trend = .084) and pyridoxine (P for trend = .093) were 37% and 47%, respectively, lower than that in the lowest quartile.

CONCLUSION

High intake of niacin, pyridoxine, or cobalamin was independently associated with decreased serum CRP concentrations among HIV-infected men. Further prospective studies are warranted to confirm the role of B vitamins in inflammation among HIV-infected persons.

Lower Plasma Zinc Levels in Hyperglycemic People Living with HIV in the MASH cohort

BACKGROUND

Zinc deficiency is prevalent in HIV and hyperglycemic patients. Antiretroviral therapy (ART) is a treatment to control HIV progression; however it increases the risk for hyperglycemia. The objective of this study was to assess the plasma zinc levels in hyperglycemic people living with HIV (PLWH).

METHODS

Secondary analysis was conducted on the data from the Miami Adult Studies in HIV (MASH) cohort in Florida. Patients were categorized into hyperglycemic group (fasting blood glucose ≥100 mg/dL) and normal group (<100 mg/dL).

RESULTS

Plasma zinc status and CD4 levels were lower in the hyperglycemic group, however the difference was not significant. There was a greater percentage of plasma zinc deficiency in the hyperglycemic group (69%) compared to the normoglycemic group (64%).

DISCUSSION

Although not statistically significant, related biomarkers such as plasma zinc levels and CD4 levels were lower in the hyperglycemic group. This may be due to the role zincplays in the immune system. Due to the fact that there was a higher percentage of plasma zinc deficiency in the hyperglycemic group (69%) compared to the normoglycemic group (64%), it is important to monitor and manage blood glucose levels to minimize complications. Our findings along with previous findings suggest that zinc supplementation may benefit hyperglycemic PLWH.

Prevalence and risk factors of micronutrient deficiencies pre- and post-antiretroviral therapy (ART) among a diverse multicountry cohort of HIV-infected adults

BACKGROUND & AIMS

HIV-infected adults have increased risk of several individual micronutrient deficiencies. However, the prevalence and risk factors of concurrent and multiple micronutrient deficiencies and whether micronutrient concentrations change after antiretroviral therapy (ART) initiation have not been well described. The objective of this study was to determine the prevalence and risk factors of individual, concurrent and multiple micronutrient deficiencies among ART-naïve HIV-infected adults from nine countries and assess change in micronutrient status 48 weeks post-ART initiation.

METHODS

A random sub-cohort (n = 270) stratified by country was selected from the multinational PEARLS clinical trial (n = 1571 ART-naïve, HIV-infected adults). We measured serum concentrations of vitamins A, D (25-hydroxyvitamin), E, carotenoids and selenium pre-ART and 48 weeks post-ART initiation, and measured vitamins B6, B12, ferritin and soluble transferrin receptor at baseline only. Prevalence of single micronutrient deficiencies, concurrent (2 coexisting) or conditional (a deficiency in one micronutrient given a deficiency in another) and multiple (≥3) were determined using defined serum concentration cutoffs. We assessed mean changes in micronutrient concentrations from pre-ART to week 48 post-ART initiation using multivariable random effects models.

RESULTS

Of 270 participants, 13.9%, 29.2%, 24.5% and 32.4% had 0, 1, 2 and multiple deficiencies, respectively. Pre-ART prevalence was the highest for single deficiencies of selenium (53.2%), vitamin D (42.4%), and B6 (37.3%) with 12.1% having concurrent deficiencies of all three micronutrients. Deficiency prevalence varied widely by country. 48 weeks post-ART initiation, mean vitamin A concentration increased (p < 0.001) corresponding to a 9% decrease in deficiency. Mean concentrations also increased for other micronutrients assessed 48 weeks post-ART (p < 0.001) but with minimal change in deficiency status.

CONCLUSIONS

Single and multiple micronutrient deficiencies are common among HIV-infected adults pre-ART initiation but vary between countries. Importantly, despite increases in micronutrient concentrations, prevalence of individual deficiencies remains largely unchanged after 48 weeks on ART. Our results suggest that ART alone is not sufficient to improve micronutrient deficiency.

Leaf concentrate compared with skimmed milk as nutritional supplementation for HIV-infected children: a randomized controlled trial in Burundi

OBJECTIVE

The effectiveness of leaf concentrate powder (LCP) as a nutritional supplement was established in trials conducted among adolescent girls and pregnant women in India. Here we evaluate LCP, compared with skimmed milk powder (SMP), as a supplement for antiretroviral-naïve children living with HIV in a sub-Saharan African country.

DESIGN

Randomized controlled, two-arm, 6-month trial comparing effects of isoproteic (5 g) LCP (10 g daily) and SMP (15 g daily) on HIV-1 viral load, CD4+ cell count/percentage, weight/height-for-age, general blood parameters, diarrhoea, respiratory and HIV-related opportunistic infections.

SETTING

Bujumbura and Kirundo, Burundi.

SUBJECTS

Eighty-three HIV-positive, antiretroviral-naïve children aged 5-14 years: median (range) CD4+ count, 716 (361-1690) cells/mm3; log10 HIV-1 viral load, 4·39 (1·79-6·00).

RESULTS

LCP was equivalent to SMP in relation to HIV-specific blood parameters and did not demonstrate superiority over SMP in relation to Hb. Three children in each arm (LCP, 7·1 % (3/42); SMP, 7·3 % (3/41)) proceeded to antiretroviral therapy because their CD4+ counts fell below 350 cells/mm3. Children in the LCP group reported higher levels of appetite and overall health at 6 months. There were no differences in clinical events or any other outcome measures. LCP was less palatable than SMP to the children in this population, but there were few negative perceptions of appearance, texture and taste.

CONCLUSIONS

LCP appears to be equivalent to SMP as a nutritional supplement in this population, despite slightly lower palatability. In relation to viral load and CD4+ count, equivalence may indicate no effect in either group. Effectiveness relative to no supplementation remains to be determined.

Organoselenium Compounds as Phytochemicals from the Natural Kingdom

Selenium is naturally present in soils but it is also produced by pollution from human activities into the environment. Its incorporation into plants affords organoselenium metabolites that, depending on the nature of the molecules and the plant species, can be incorporated into proteins, stored or eliminated by volatilization. The possibility to use the selenium metabolism of some plants as a method for bioremediation and, at the main time, as a source of selenated phytochemicals is here discussed taking into consideration the growing interest in organic selenium derivatives as new potential therapeutic agents.

Plasma Micronutrient Concentrations Are Altered by Antiretroviral Therapy and Lipid-Based Nutrient Supplements in Lactating HIV-Infected Malawian Women

BACKGROUND

Little is known about the influence of antiretroviral therapy with or without micronutrient supplementation on the micronutrient concentrations of HIV-infected lactating women in resource-constrained settings.

OBJECTIVE

We examined associations of highly active antiretroviral therapy (HAART) and lipid-based nutrient supplements (LNS) with concentrations of selected micronutrients in HIV-infected Malawian women at 24 wk postpartum.

METHODS

Plasma micronutrient concentrations were measured in a subsample (n = 690) of Breastfeeding, Antiretrovirals, and Nutrition (BAN) study participants who were randomly assigned at delivery to receive HAART, LNS, HAART+LNS, or no HAART/no LNS (control). HAART consisted of protease inhibitor-based triple therapy. LNS (140 g/d) met energy and micronutrient requirements of lactation. Multivariable linear regression tested the association of HAART and LNS, plus their interaction, with micronutrient concentrations, controlling for season, baseline viral load, and baseline CD4 count.

RESULTS

We found significant HAART by LNS interactions for folate (P = 0.051), vitamin B-12 (P < 0.001), and transferrin receptors (TfRs) (P = 0.085). HAART was associated with lower folate (with LNS: -27%, P < 0.001; without LNS: -12%, P = 0.040) and higher TfR concentrations (with LNS: +14%, P = 0.004; without LNS: +28%, P < 0.001), indicating iron deficiency. LNS increased folate (with HAART: +17%, P = 0.037; without HAART: +39%, P < 0.001) and decreased TfR concentrations (with HAART only: -12%, P = 0.023). HAART was associated with lower vitamin B-12 concentrations only when LNS was present (-18%, P = 0.001), whereas LNS increased vitamin B-12 only when no HAART was present (+27%, P < 0.001). HAART, but not LNS, was associated with higher retinol-binding protein (RBP; +10%, P = 0.007). We detected no association of HAART or LNS with selenium, ferritin, or hemoglobin.

CONCLUSION

The association of HAART with lower folate, iron deficiency, and higher RBP plus the attenuation of LNS effects on folate and vitamin B-12 when combined with HAART has implications for the health of lactating HIV-infected women taking HAART in prevention of mother-to-child transmission programs. This trial was registered at clinicaltrials.gov as NCT00164736.

Quadruple burden of HIV/AIDS, tuberculosis, chronic intestinal parasitoses, and multiple micronutrient deficiency in ethiopia: a summary of available findings

Human immunodeficiency virus (HIV), tuberculosis (TB), and helminthic infections are among the commonest public health problems in the sub-Saharan African countries like Ethiopia. Multiple micronutrient deficiencies also known as the “hidden hunger” are common in people living in these countries either playing a role in their pathogenesis or as consequences. This results in a vicious cycle of multiple micronutrient deficiencies and infection/disease progression. As infection is profoundly associated with nutritional status resulting from decreased nutrient intake, decreased nutrient absorption, and nutrient losses, micronutrient deficiencies affect immune system and impact infection and diseases progression. As a result, micronutrients, immunity, and infection are interrelated. The goal of this review is therefore to provide a summary of available findings regarding the “quadruple burden trouble” of HIV, TB, intestinal parasitic infections, and multiple micronutrient deficiencies to describe immune-modulating effects related to disorders.

High-dose vitamin D3 supplementation in children and young adults with HIV: a randomized, placebo-controlled trial

BACKGROUND

Suboptimal vitamin D status is prevalent in HIV-infected patients and associated with increased risk of disease severity and morbidity. We aimed to determine 12-month safety and efficacy of daily 7000 IU vitamin D3 (vitD3) versus placebo to sustain increased serum 25-hydroxyvitamin D (25(OH)D) and improve immune status in HIV-infected subjects.

METHODS

This was a double-blind trial of perinatally acquired HIV (PHIV)-infected subjects or behaviorally acquired HIV (BHIV)-infected subjects (5.0-24.9 years). Safety, 25(OH)D-related parameters and immune status were assessed at baseline, 3, 6 and 12 months.

RESULTS

Fifty-eight subjects enrolled (67% male, 85% African American and 64% BHIV) and 50 completed with no safety concerns. In unadjusted analyses, there were no differences between randomization groups at baseline; at 3, 6 and 12 months, 25(OH)D was higher with supplementation than baseline and higher than with placebo (P < 0.05). In adjusted mixed models, in the supplementation group, the fixed effect of 25(OH)D was higher (P < 0.001). Percentage of naive T-helper cells (Th naive%) were significantly (P < 0.01) and T-helper cells (CD4%) marginally (P < 0.10) increased with supplementation in those taking highly active antiretroviral therapy (HAART), and RNA viral load was reduced (P ≤ 0.05). In exploratory linear models, change in 25(OH)D predicted RNA viral load at 3 and 12 months and CD4% at 3 months (P < 0.05).

CONCLUSIONS

Daily 7000 IU vitD3 for 12 months was safe in HIV-infected subjects and effective in increasing 25(OH)D. Supplementation improved some clinically important HIV immune markers in subjects on HAART. Adjunct therapy with high-dose, daily vitD3 for HIV-infected subjects and for those on/off HAART requires further investigation.

Selected micronutrient levels and response to highly active antiretroviral therapy (HAART) among HIV/AIDS patients attending a teaching Hospital in Addis Ababa, Ethiopia

Poor micronutrient levels are associated with an increased risk of progression to AIDS and are also suggested to influence outcome of highly active antiretroviral therapy (HAART), though existing data are inconclusive to support the latter. Few published data are available on micronutrient levels in Ethiopian HIV/AIDS patients taking HAART. The objective of the study was to determine the association of micronutrient levels and response to HAART (CD4(+) T cell count) among adult HIV/AIDS patients attending a teaching Hospital in Addis Ababa. CD4(+) T cell counts and micronutrient (retinol, zinc, and iron) levels for 171 subjects were determined using standard procedures. Some proportions of the study participants were found deficient for retinol (14.03 %), zinc (47.3 %), and iron (2.8 %). Patients who were deficient in retinol had a significantly lower median CD4(+) T cell counts (P = 0.002) compared to non-deficient subjects. Association of micronutrient quartiles with CD4+ T cell count was assessed using adjusted multivariate regression by taking quartile 4 as a reference category. Accordingly, patients who had retinol levels in quartile 4 had a significantly lower mean CD4(+) T cell count compared to quartile 3 (P = 0.02). The significantly higher CD4(+) T cell counts in patients who were non-deficient in retinol imply the role of retinol in improving the production of CD4(+) T cells. However, both lower and higher retinol levels were associated with suppressed immunity (CD4 < 200 cells/mm(3)), suggesting an adverse effect of higher retinol levels. Thus, retinol may be potentially harmful depending on the dose, emphasizing the need for optimized level of retinol in nutrient supplements in patients taking HAART.

Measuring food and nutrition security: tools and considerations for use among people living with HIV

As an increasing number of countries implement integrated food and nutrition security (FNS) and HIV programs, global stakeholders need clarity on how to best measure FNS at the individual and household level. This paper reviews prominent FNS measurement tools, and describes considerations for interpretation in the context of HIV. There exist a range of FNS measurement tools and many have been adapted for use in HIV-endemic settings. Considerations in selecting appropriate tools include sub-types (food sufficiency, dietary diversity and food safety); scope/level of application; and available resources. Tools need to reflect both the needs of PLHIV and affected households and FNS program objectives. Generalized food sufficiency and dietary diversity tools may provide adequate measures of FNS in PLHIV for programmatic applications. Food consumption measurement tools provide further data for clinical or research applications. Measurement of food safety is an important, but underdeveloped aspect of assessment, especially for PLHIV.

Vitamin A and beta-carotene concentrations in adults with HIV/AIDS on highly active antiretroviral therapy

Micronutrient deficiency is a common condition in HIV-infected individuals and may occur in all stages of the disease. The objective of this cross-sectional study was to compare the concentrations of vitamin A and beta-carotene, micronutrients related to immunity and oxidative stress, in 182 adults with HIV/AIDS, under different highly active antiretroviral therapy (HAART) regimens. Patients were divided into 3 groups according to their HAART regimen: combination of nucleoside analog reverse transcriptase inhibitors (NRTIs) and non-NRTIs; combination of NRTIs, protease inhibitors, and ritonavir; combination of NRTIs and other classes. Multiple linear regression analysis determined the effect of the treatment regimen, time of use, and compliance with the regimen, on vitamin A and beta-carotene concentrations, controlling for the following variables: gender, age, educational level, smoking, physical activity, body mass index, time of infection with HIV, presence of comorbidities, CD4(+) T lymphocyte count, total cholesterol and fractions, and triglyceride levels. There was no significant difference in vitamin A or beta-carotene concentrations in patients under the different HAART regimens. However, approximately 4% of the patients had deficient/low concentrations of vitamin A (<0.70 μmol/L), and 98% showed concentrations of beta-carotene <1.0 μmol/L. In conclusion, HIV/AIDS patients in this region will not benefit from vitamin A supplementation, independently of the HAART regimen utilized, but beta-carotene may be of importance, considering its antioxidant effect.

A longer time of exposure to antiretroviral therapy improves selenium levels

BACKGROUND & AIMS

Selenium is an essential mineral for immunological function, performing crucial functions at the cellular level. This micronutrient has been determined to be frequently deficient in HIV infected patients, with correlations between reduced immunological function and greater susceptibility to opportunistic infections. Our aim was to evaluate the influence of time of exposure to antiretroviral therapy (ART) on the biochemical profile of selenium in HIV-infected patients.

METHODS

We performed a cross-sectional study on 50 HIV-positive men with different quantitations of viral load and CD4+ T cells, who were either receiving or not receiving ART. Dual energy X-ray absorptiometry (DXA) to determine body composition, biochemical analysis of selenium and albumin, anthropometric measurements were performed. The subjects were divided into groups according to the use of ART or not: The Control Group (CG) was 10 treatment-naïve volunteers, Group G < 2 was 20 volunteers on ART for less than 2 years, and Group G > 2 was 20 volunteers on ART for >2 years.

RESULTS

The body mass index showed that all subjects were of normal weight. The group with a longer time of exposure to ART (G > 2) had undetectable viremia and a higher CD4+ T cell count: 593.1 ± 234.6 mm(3). Selenium values (μg/L) were 55.9 ± 11.9 for CG, 52.1 ± 10.5 for G < 2, and 66.9 ± 20.8 for G > 2, with a significant difference between groups G < 2 and G > 2 (p < 0.05), and only G > 2 showed normal selenium values.

CONCLUSIONS

Most of the men studied showed selenium deficiency, except for the subjects with a longer exposure to antiretroviral treatment. Thus, an adequate selenium concentration is related to better control of virology and of immunologic function.

Histopathological Changes of the Thyroid and Parathyroid Glands in HIV-Infected Patients

Objective. To study histopathology of the thyroid and parathyroid glands in HIV-infected African Americans in the United States. Methods. A retrospective review of 102 autopsy cases done by the Department of Pathology at Howard University Hospital from 1980 through 2007 was conducted. The histopathological findings of the thyroid and parathyroid glands were reviewed, both macroscopically and microscopically. A control group of autopsy patients with chronic non-HIV diseases was examined. Results. There were 71 males (70%) and 31 females (30%) with an average age of 38 years (range: 20–71 y). Thirteen patients with abnormal thyroid findings were identified. Interstitial fibrosis was the most common histological finding (4.9%), followed by thyroid hyperplasia (1.9%). Infectious disease affecting the thyroid gland was limited to 2.9% and consisted of mycobacterium tuberculosis, Cryptococcus neoformans, and cytomegalovirus. Kaposi sarcoma of the thyroid gland was present in only one case (0.9%). Parathyroid hyperplasia was the most common histological change noted in the parathyroid glands. Comparing the histological findings of cases and controls, we found a similar involvement of the thyroid, with a greater prevalence of parathyroid hyperplasia in HIV patients. Conclusion. Thyroid and parathyroid abnormalities are uncommon findings in the HIV-infected African American population.

Micronutrient supplemented probiotic yogurt for HIV-infected adults taking HAART in London, Canada

The Human Immunodeficiency Virus has devastating effects worldwide. The burden is less pronounced, but still present in Canada where approximately 64,000 men and women are HIV positive. The virus and the life-saving antiretroviral therapies often contribute to diarrhea and other gastrointestinal disturbances. Certain probiotic organisms, such as Lactobacillus rhamnosus GR-1, have been shown to alleviate diarrhea as well as delay the decline of CD4 lymphocytes in some subjects. In addition, micronutrient formulae have been used extensively among HIV positive persons as a cost-effective method for improving quality of life and immune function. The objective of the present study was to combine probiotics and micronutrients into an affordable and highly palatable nutritional supplement and assess outcomes in 21 HIV-positive participants receiving highly active antiretroviral therapy in London, Ontario, Canada. The design was a randomized, double blind, three-period, cross-over controlled trial with three different formulations of supplemented yogurt; micronutrient and probiotic (A), micronutrient alone (B) and probiotic alone (C). The period of intake for each of the types was 30 days with a 14 day wash-out period between the intervention types. The mean increase in CD4 was greatest with B (41 cells/µL, SD 221). Supplement A showed a mean change of +19 cells/µL (SD 142) and supplement C a mean change of - 7 cells/µL (SD 154). All yogurt types caused an increase in subjective energy and ability to perform daily activity scores. According to the safety measures taken to assess the tolerance of the yogurt, there were no adverse events and the yogurt was well-tolerated. These preliminary findings suggest that micronutrient supplemented probiotic yogurt may support immune function among people living with HIV.

Comparison of Adenosine Deaminase, Zinc, Magnesium, Lipid Profile, and some Micronutrient Elements and their Relation with CD4 Counts in Human Immunodeficiency Virus Positive and Negative Patients

BACKGROUND

There is strong evidence regarding the patterns of alteration in the blood parameters in human immunodeficiency virus (HIV)-positive patients. However, no consensus has been reached in this regard and the results vary from different regions and studies. Our study aims to report these patterns in a population of HIV-infected patients in Iran.

MATERIALS AND METHODS

We studied two groups of HIV-infected and HIV-negative patients. One hundred and fourteen subjects were enrolled in each group; blood parameters were compared in these two.

RESULTS

Variables of HIV-negative patients changed as follows compared to HIV-positive patients: with regard to the hematological variables, CD4+↓; CD8+↓; WBC↓; RBC↓; HCT↓; MCV↑; MCH↑; MCHC↑; PLT↓; EOS↑; and BASO↑; and among the metabloic parameters, TG↓; CH↑; HDL↓; LDL↓, MG↑; ZN↑; P↑; and ADA↓, which showed significnat differences between groups (P < 0.05).

CONCLUSION

We conclude that HIV infection affects hematopoiesis by diminishing the hematological productivity parameters and increasing red blood cell related morphology, along with a different pattern of lipid profile (decreased TG, LDL, HDL, and increased CH) and serum micronutrients (elevated concentration of serum trace elements) in our population of study.

Multivitamin supplementation in HIV infected adults initiating antiretroviral therapy in Uganda: the protocol for a randomized double blinded placebo controlled efficacy trial

Background

Use of multivitamin supplements during the pre-HAART era has been found to reduce viral load, enhance immune response, and generally improve clinical outcomes among HIV-infected adults. However, immune reconstitution is incomplete and significant mortality and opportunistic infections occur in spite of HAART. There is insufficient research information on whether multivitamin supplementation may be beneficial as adjunct therapy for HIV-infected individuals taking HAART. We propose to evaluate the efficacy of a single recommended daily allowance (RDA) of micronutrients (including vitamins B-complex, C, and E) in slowing disease progression among HIV-infected adults receiving HAART in Uganda.

Methods/Design

We are using a randomized, double-blind, placebo-controlled trial study design. Eligible patients are HIV-positive adults aged at least 18 years, and are randomized to receive either a placebo; or multivitamins that include a single RDA of the following vitamins: 1.4 mg B1, 1.4 mg B2, 1.9 mg B6, 2.6 mcg B12, 18 mg niacin, 70 mg C, 10 mg E, and 0.4 mg folic acid. Participants are followed for up to 18 months with evaluations at baseline, 6, 12 and 18 months. The study is primarily powered to examine the effects on immune reconstitution, weight gain, and quality of life. In addition, we will examine the effects on other secondary outcomes including the risks of development of new or recurrent disease progression event, including all-cause mortality; ARV regimen change from first- to second-line therapy; and other adverse events as indicated by incident peripheral neuropathy, severe anemia, or diarrhea.

Discussions

The conduct of this trial provides an opportunity to evaluate the potential benefits of this affordable adjunct therapy (multivitamin supplementation) among HIV-infected adults receiving HAART in a developing country setting.

Trial registration

Clinical Trial Registration-URL: http://www.clinicaltrials.gov. Unique identifier: NCT01228578

Availability of nutritional support services in HIV care and treatment sites in sub-Saharan African countries

OBJECTIVE

To examine the availability of nutritional support services in HIV care and treatment sites across sub-Saharan Africa.

DESIGN

In 2008, we conducted a cross-sectional survey of sites providing antiretroviral therapy (ART) in nine sub-Saharan African countries. Outcomes included availability of: (i) nutritional counselling; (ii) micronutrient supplementation; (iii) treatment for severe malnutrition; and (iv) food rations. Associations with health system indicators were explored using bivariate and multivariate methods.

SETTING

President's Emergency Plan for AIDS Relief-supported HIV treatment and care sites across nine sub-Saharan African countries.

SUBJECTS

A total of 336 HIV care and treatment sites, serving 467 175 enrolled patients.

RESULTS

Of the sites under study, 303 (90 %) offered some form of nutritional support service. Nutritional counselling, micronutrient supplementation, treatment for severe acute malnutrition and food rations were available at 98 %, 64 %, 36 % and 31 % of sites, respectively. In multivariate analysis, secondary or tertiary care sites were more likely to offer nutritional counselling (adjusted OR (AOR): 2.2, 95 % CI 1.1, 4.5). Rural sites (AOR: 2.3, 95 % CI 1.4, 3.8) had increased odds of micronutrient supplementation availability. Sites providing ART for >2 years had higher odds of availability of treatment for severe malnutrition (AOR: 2.4, 95 % CI 1.4, 4.1). Sites providing ART for >2 years (AOR: 1.6, 95 % CI 1.3, 1.9) and rural sites (AOR: 2.4, 95 % CI 1.4, 4.4) had greater odds of food ration availability.

CONCLUSIONS

Availability of nutritional support services was high in this large sample of HIV care and treatment sites in sub-Saharan Africa. Further efforts are needed to determine the uptake, quality and effectiveness of these services and their impact on patient and programme outcomes.

Drug-nutrient interactions: a broad view with implications for practice

The relevance of drug?nutrient interactions in daily practice continues to grow with the widespread use of medication. Interactions can involve a single nutrient, multiple nutrients, food in general, or nutrition status. Mechanistically, drug?nutrient interactions occur because of altered intestinal transport and metabolism, or systemic distribution, metabolism and excretion, as well as additive or antagonistic effects. Optimal patient care includes identifying, evaluating, and managing these interactions. This task can be supported by a systematic approach for categorizing interactions and rating their clinical significance. This review provides such a broad framework using recent examples, as well as some classic drug?nutrient interactions. Pertinent definitions are presented, as is a suggested approach for clinicians. This important and expanding subject will benefit tremendously from further clinician involvement.

Nutrition and pharmacology: general principles and implications for HIV

Food and nutrition play an intimate and inextricable role in all aspects of drug metabolism, safety, and effectiveness. Antiretroviral therapies (ART) have assumed a preeminent position in the prevention, care, and treatment of HIV and its comorbidities. The interaction between food, nutrition, and ART has become an expanding area of interest both in terms of clinical standards of care and as a target for research. Since the original review of this topic by the WHO in 2005, much has been learned (8). This article contains a review of what is known about the general relationships between nutrition and pharmacology, as well as issues specific to ART, with particular attention to their use in low- and middle-resource settings. The importance of food and nutrition on the bioavailability of drugs and vice versa has been an area of historical interest. However, much has been learned about the importance of nutritional status on drug metabolism, distribution, and effectiveness. The impact of traditional therapies (herbal/botanical) is highlighted as an area of clinical concern and one in need of further research. Additional attention is focused on the impact of individual micronutrients on drug pharmacokinetics and pharmacodynamics. Finally, attention is given to the nutritional implications of the metabolic consequences of ART, which include the potential impact of "colliding epidemics" of infection (eg, HIV, tuberculosis) and noncommunicable diseases. Much has been learned, but much remains to be accomplished to ensure the effective integration of nutritional considerations into the effective and safe use of ART.

Nutrition and disease progression pre-highly active antiretroviral therapy (HAART) and post-HAART: can good nutrition delay time to HAART and affect response to HAART?

Several studies have investigated a variety of nutritional supplementation interventions in adults with HIV. In this narrative review, we summarize the evidence from 31 clinical trials that explore clinical benefits of macronutrient and micronutrient supplementation in this population while attempting to answer the question of whether good nutrition can delay the time to highly active antiretroviral therapy (HAART) initiation and response. We focused on trials published in English between 1990 and 2010 that reported on CD4 count, viral load, and disease progression or survival. Among 9 macronutrient and 22 micronutrient trials, we found that evidence for improved CD4 count and HIV viral load with nutritional supplementation was limited; only 11.1% and 36.8% of macronutrient and micronutrient supplementation trials, respectively, reported improved CD4 count; and 33.3% and 12.5% of macronutrient and micronutrient trials, respectively, reported decreased viral load. Given their utility as surrogate markers of HIV disease progression, this suggests limited evidence for nutritional interventions having an impact on delaying HAART initiation or on improving HAART response. However, there are challenges in evaluating the effects of nutritional supplementation on clinical disease in that comparisons are difficult due to heterogeneity in study design, patient population, nutrient doses and combinations, baseline levels of deficiency, and study endpoints, including lack of clarity in defining and reporting HAART status. Future studies need to adopt a more rigorous standard design with adequate power and follow-up and require a consensus on composition and dose of nutrient interventions to be tested to more specifically answer the question on the impact of nutritional interventions on HIV disease progression and HAART response.

Conceptual framework for understanding the bidirectional links between food insecurity and HIV/AIDS

Food insecurity, which affects >1 billion people worldwide, is inextricably linked to the HIV epidemic. We present a conceptual framework of the multiple pathways through which food insecurity and HIV/AIDS may be linked at the community, household, and individual levels. Whereas the mechanisms through which HIV/AIDS can cause food insecurity have been fairly well elucidated, the ways in which food insecurity can lead to HIV are less well understood. We argue that there are nutritional, mental health, and behavioral pathways through which food insecurity leads to HIV acquisition and disease progression. Specifically, food insecurity can lead to macronutrient and micronutrient deficiencies, which can affect both vertical and horizontal transmission of HIV, and can also contribute to immunologic decline and increased morbidity and mortality among those already infected. Food insecurity can have mental health consequences, such as depression and increased drug abuse, which, in turn, contribute to HIV transmission risk and incomplete HIV viral load suppression, increased probability of AIDS-defining illness, and AIDS-related mortality among HIV-infected individuals. As a result of the inability to procure food in socially or personally acceptable ways, food insecurity also contributes to risky sexual practices and enhanced HIV transmission, as well as to antiretroviral therapy nonadherence, treatment interruptions, and missed clinic visits, which are strong determinants of worse HIV health outcomes. More research on the relative importance of each of these pathways is warranted because effective interventions to reduce food insecurity and HIV depend on a rigorous understanding of these multifaceted relationships.