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ABSTRACT: Background & aims
Nutritional deficiency and inflammation may impact CD4+ T cell recovery during combination antiretroviral therapy (cART), particularly in resource-limited settings where malnutrition is prevalent. The aim of this study was to investigate the relationship of micronutrient and inflammation biomarkers to CD4 recovery after cART initiation.Methods
We conducted a secondary analysis of a random sub-cohort sample (n = 270) from a multinational randomized trial of cART regimen efficacy among 1571 cART-naïve adults. We measured pre-cART serum levels of micronutrients (Vitamin A, B6, B12, D, total carotenoids, selenium, and iron) and inflammation (C-reactive protein, soluble CD14 (sCD14), IFNγ, TNFα, Interleukin-6, and C-X-C motif chemokine 10 (CXCL10/IP10), EndoCab (IgM)) biomarkers. Biomarker status (i.e. micronutrient deficiency vs. sufficiency and elevated vs. low inflammation) was defined using established cutoffs or quartiles. Mixed-effects linear regression models were used to determine the association of baseline (pre-cART) concentrations of individual biomarkers with CD4 recovery through 96 weeks post-cART initiation.Results
In models adjusting for time-dependent viral load and baseline CD4 count, age, sex, body mass index, country, treatment regimen, anemia and hypoalbuminemia status, pre-cART vitamin D deficiency was associated with lower CD4 recovery (-14.9 cells/mm3, 95% CI: -27.9, -1.8) compared to sufficiency. In contrast, baseline selenium deficiency (20.8 cells/mm3, 95% CI: 3.3, 38.3), vitamin A deficiency (35.9 cells/mm3, 95% CI: 17.6, 54.3) and high sCD14 (23.4 cells/mm3, 95% CI: 8.9, 37.8) were associated with higher CD4 recovery compared to sufficient/low inflammation status.Conclusions
In summary, baseline vitamin D deficiency was associated with diminished CD4 recovery after cART initiation; impaired CD4 recovery may contribute to the poor clinical outcomes recently observed in individuals with vitamin D deficiency. Vitamin A, selenium and sCD14 were associated with CD4 recovery but future studies are needed to further explore these relationships.
SUBMITTER: Shivakoti R
PROVIDER: S-EPMC6265110 | biostudies-literature | 2019 Jun
REPOSITORIES: biostudies-literature
Shivakoti Rupak R Ewald Erin R ER Gupte Nikhil N Yang Wei-Teng WT Kanyama Cecilia C Cardoso Sandra W SW Santos Breno B Supparatpinyo Khuanchai K Badal-Faesen Sharlaa S Lama Javier R JR Lalloo Umesh U Zulu Fatima F Pawar Jyoti S JS Riviere Cynthia C Kumarasamy Nagalingeswaran N Hakim James J Pollard Richard R Detrick Barbara B Balagopal Ashwin A Asmuth David M DM Semba Richard D RD Campbell Thomas B TB Golub Jonathan J Gupta Amita A
Clinical nutrition (Edinburgh, Scotland) 20180529 3
<h4>Background & aims</h4>Nutritional deficiency and inflammation may impact CD4+ T cell recovery during combination antiretroviral therapy (cART), particularly in resource-limited settings where malnutrition is prevalent. The aim of this study was to investigate the relationship of micronutrient and inflammation biomarkers to CD4 recovery after cART initiation.<h4>Methods</h4>We conducted a secondary analysis of a random sub-cohort sample (n = 270) from a multinational randomized trial of cART ...[more]