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Vitamin D & HIv

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https://www.readbyqxmd.com/read/28060020/significant-association-between-statin-associated-myalgia-and-vitamin-d-deficiency-among-treated-hiv-infected-patients
#1
Leonardo Calza, Eleonora Magistrelli, Vincenzo Colangeli, Marco Borderi, Ilaria Contadini, Isabella Bon, Maria Carla Re, Pierluigi Viale
BACKGROUND.: Several studies have shown a significant association between vitamin D deficiency and an increased risk of statin-related symptomatic myalgia in the general population, but there are no data among HIV-infected persons. METHODS.: A retrospective, cohort study was conducted to assess the incidence of symptomatic myalgia and elevation in serum creatine kinase (CK) level among HIV-positive adults on cART and treated with atorvastatin or rosuvastatin for at least 12 months between 2011 and 2015 in our Outpatient Unit...
January 4, 2017: AIDS
https://www.readbyqxmd.com/read/28045766/baseline-vitamin-d-deficiency-decreases-the-effectiveness-of-statins-in-hiv-infected-adults-on-antiretroviral-therapy
#2
Corrilynn O Hileman, Vin Tangpricha, Abdus Sattar, Grace A McComsey
OBJECTIVE: Vitamin D deficiency is common in HIV. Statins may increase vitamin D and it is unknown whether vitamin D modifies the effect of statins on cardiovascular disease. DESIGN: SATURN-HIV was a 96-week, randomized, placebo-controlled trial designed to evaluate the effect of rosuvastatin on immune activation and subclinical vascular disease in HIV-infected adults on antiretroviral therapy. This analysis focuses on the pre-specified secondary endpoint 25-hydroxyvitamin D [25(OH)D] concentrations...
December 29, 2016: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28013265/decline-in-bone-mass-with-tenofovir-disoproxil-fumarate-emtricitabine-is-associated-with-hormonal-changes-in-the-absence-of-renal-impairment-when-used-by-hiv-uninfected-adolescent-boys-and-young-men-for-hiv-preexposure-prophylaxis
#3
Peter L Havens, Charles B Stephensen, Marta D Van Loan, Gertrud U Schuster, Leslie R Woodhouse, Patricia M Flynn, Catherine M Gordon, Cynthia G Pan, Brandy Rutledge, Nancy Liu, Craig M Wilson, Rohan Hazra, Sybil G Hosek, Peter L Anderson, Sharon M Seifert, Bill G Kapogiannis, Kathleen Mulligan
BACKGROUND: We aimed to define the relative importance of renal and endocrine changes in tenofovir disoproxil fumarate (TDF)-related bone toxicity. METHODS: In a study of daily TDF/emtricitabine (FTC) preexposure prophylaxis (PrEP) in human immunodeficiency virus (HIV)-uninfected young men who have sex with men, we measured changes from baseline in blood and urine markers of the parathyroid hormone (PTH)-vitamin D-fibroblast growth factor 23 (FGF23) axis, creatinine, and renal tubular reabsorption of phosphate (TRP)...
February 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27986599/development-of-a-novel-formulation-that-improves-pre-clinical-bioavailability-of-tenofovir-disoproxil-fumarate
#4
M E Watkins, S Wring, R Randolph, S Park, K Powell, M Lutz, M Nowakowski, R Ramabhadran, P L Domanico
Tenofovir disoproxil fumarate (TDF), the bisphosphonate ester prodrug of tenofovir (TFV), has poor bioavailability due to intestinal degradation and efflux transport. Reformulation using FDA-approved esterase and efflux inhibitors to increase oral bioavailability could provide lower dose alternatives and reduce costs for patients with HIV in resource-limited settings (RLS). Inhibition of mucosal and intracellular esterases was studied in human and rat intestinal extracts (S9), where TDF was protected by the carboxylesterase (CE) inhibitor bis-para-nitrophenylphosphate (BNPP), the ester mix EM1, and the generally-recognized-as-safe (GRAS) excipient propylparaben (PP)...
December 13, 2016: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27889053/osteoporosis-in-postmenopausal-women-living-with-hiv
#5
REVIEW
Fionnuala Finnerty, Karen Walker-Bone, Shema Tariq
The widespread availability of effective antiretroviral therapy (ART) has transformed HIV from a life-limiting condition to one with near-normal life expectancy. HIV is associated with an increased risk of osteopenia and osteoporosis, with people living with HIV (PLHIV) potentially experiencing these conditions at a younger age than their HIV-negative counterparts. The mechanisms driving bone disease in HIV are complex and include: an increased prevalence of traditional risk factors; other comorbid conditions; and HIV-associated factors such as viral effects, systemic inflammation, and ART-related factors...
January 2017: Maturitas
https://www.readbyqxmd.com/read/27837268/effect-of-high-dose-cholecalciferol-vitamin-d3-on-bone-and-body-composition-in-children-and-young-adults-with-hiv-infection-a-randomized-double-blind-placebo-controlled-trial
#6
A J Rovner, V A Stallings, R Rutstein, J I Schall, M B Leonard, B S Zemel
: It is unknown whether vitamin D supplementation positively impacts body composition and bone outcomes in children and young adults with HIV. This RCT found that despite increasing 25(OH)D concentrations, high dose vitamin D3 supplementation did not impact bone or body composition in children and young adults with HIV infection. INTRODUCTION: The objective of this paper was to determine the impact of high-dose daily cholecalciferol (vitamin D3) supplementation on body composition and bone density, structure, and strength in children and young adults with perinatally acquired (PHIV) or behaviorally acquired (BHIV) HIV infection...
January 2017: Osteoporosis International
https://www.readbyqxmd.com/read/27832021/adiponectin-leptin-and-inflammatory-markers-in-hiv-associated-metabolic-syndrome-in-children-and-adolescents
#7
María Espiau, Diego Yeste, Antoni Noguera-Julian, Pere Soler-Palacín, Clàudi Fortunyc, Roser Ferrer, Immaculada Comas, Andrea Martín-Nalda, Ángela Deyà-Martínez, Concepció Figueras, Antonio Carrascosa
BACKGROUND: Metabolic syndrome (MetS) is more common in HIV-infected adults and children than in the general population. Adipocytokines and inflammatory markers may contribute to the pathophysiology of this condition and could be useful indices for monitoring MetS. The objective of this study was to provide information on the prevalence of MetS and investigate the role of adipocytokines and other biomarkers in this syndrome in HIV-infected pediatric patients. METHODS: A cross-sectional study was conducted between October 2013 and March 2014 in the outpatient clinics of two tertiary pediatric referral hospitals...
November 8, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27821214/change-in-serum-25-hydroxyvitamin-d-with-antiretroviral-treatment-initiation-and-nutritional-intervention-in-hiv-positive-adults
#8
Daniel Yilma, Pernille Kæstel, Mette F Olsen, Alemseged Abdissa, Markos Tesfaye, Tsinuel Girma, Henrik Krarup, Christian Mølgaard, Kim F Michaelsen, Christian Ritz, Ole Kirk, Åse B Andersen, Henrik Friis
Low vitamin D level in HIV-positive persons has been associated with disease progression. We compared the levels of serum 25-hydroxyvitamin D (25(OH)D) in HIV-positive and HIV-negative persons, and investigated the role of nutritional supplementation and antiretroviral treatment (ART) on serum 25(OH)D levels. A randomised nutritional supplementation trial was conducted at Jimma University Specialized Hospital, Ethiopia. The trial compared 200 g/d of lipid-based nutrient supplement (LNS) with no supplementation during the first 3 months of ART...
November 8, 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/27813318/bleeding-and-liver-transplantation-outcomes-in-haemophilia
#9
K D Mehta, M V Ragni
BACKGROUND: Hepatitis C is the major cause of end-stage liver disease and the major indication for orthotopic liver transplantation (OLTx) in individuals with haemophilia. AIM: To assess the epidemiology and outcomes of OLTx in U.S. haemophilia patients. METHODS: We investigated haemophilia liver transplant recipients between 1993 and 2012, using the Nationwide Inpatient Sample, identified by ICD9 code 50.59. RESULTS: Of the 11 267 (weighted n = 54 691) patients undergoing OLTx, 44 (0...
November 4, 2016: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/27812717/bone-mineral-density-and-vitamin-d-levels-in-hiv-treatment-na%C3%A3-ve-african-american-individuals-randomized-to-receive-hiv-drug-regimens
#10
Paul P Cook, Alexandra Te Stang, Lia R Walker, Shaw M Akula, Fiona J Cook
OBJECTIVES: Treatment of human immunodeficiency virus (HIV)-infected patients with tenofovir disoproxil fumarate is associated with a decrease in bone mineral density (BMD). Treatment with efavirenz is associated with vitamin D deficiency. We compared the effects of efavirenz, emtricitabine, and tenofovir disoproxil fumarate (EFV/FTC/TDF) with the effects of raltegravir, darunavir, and ritonavir (RAL/DRV/r) on BMD and 25-hydroxyvitamin D (25[OH]D) levels in HIV-infected, antiretroviral treatment-naïve African American subjects...
November 2016: Southern Medical Journal
https://www.readbyqxmd.com/read/27812706/vitamin-d-deficiency-in-hiv-infected-children
#11
Ayesha Mirza, Saran Wells, Tabitha Gayton, Carmen Smotherman, Azeem Rathore, Dale Kraemer, Mobeen Rathore
OBJECTIVES: Improvement in life expectancy with the use of combination antiretroviral therapy has come with the recognition of the complications associated with chronic human immunodeficiency virus infection. Vitamin D has been of particular interest because of its effect on bone health and immune functions. The purpose of this study was to assess vitamin D status in children in relation to the duration and severity of their human immunodeficiency virus infection and nutritional status, as well as to determine whether there was any effect of seasonality...
November 2016: Southern Medical Journal
https://www.readbyqxmd.com/read/27809789/association-between-tuberculosis-diabetes-and-25-hydroxyvitamin-d-in-tanzania-a-longitudinal-case-control-study
#12
Noémie Boillat-Blanco, Pascal Bovet, Kaushik L Ramaiya, Maliwasa Mganga, Lilian T Minja, Lanja Saleh, Medea Imboden, Christian Schindler, Sebastien Gagneux, Claudia Daubenberger, Klaus Reither, Nicole Probst-Hensch
BACKGROUND: Vitamin D level is inversely associated with tuberculosis (TB) and diabetes (DM). Vitamin D could be a mediator in the association between TB and DM. We examined the associations between vitamin D, TB and DM. METHODS: Consecutive adults with TB and sex- and age-matched volunteers were included in a case-control study in Dar es Salaam, Tanzania. Glycemia and total vitamin D (25(OH)D) were measured at enrolment and after TB treatment in cases. The association between low 25(OH)D (<75 nmol/l) and TB was evaluated by logistic regression adjusted for age, sex, body mass index, socioeconomic status, sunshine hours, HIV and an interaction between low 25(OH)D and hyperglycemia...
November 3, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27806980/linear-growth-trajectories-in-zimbabwean-infants
#13
Ethan K Gough, Erica Em Moodie, Andrew J Prendergast, Robert Ntozini, Lawrence H Moulton, Jean H Humphrey, Amee R Manges
BACKGROUND: Undernutrition in early life underlies 45% of child deaths globally. Stunting malnutrition (suboptimal linear growth) also has long-term negative effects on childhood development. Linear growth deficits accrue in the first 1000 d of life. Understanding the patterns and timing of linear growth faltering or recovery during this period is critical to inform interventions to improve infant nutritional status. OBJECTIVE: We aimed to identify the pattern and determinants of linear growth trajectories from birth through 24 mo of age in a cohort of Zimbabwean infants...
December 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27787390/high-25-hydroxyvitamin-d-is-associated-with-unexpectedly-high-plasma-inflammatory-markers-in-hiv-patients-on-antiretroviral-therapy
#14
Louie Mar A Gangcuangco, Lindsay B Kohorn, Dominic C Chow, Sheila M Keating, Philip J Norris, Lorna S Nagamine, Lishomwa C Ndhlovu, Scott A Souza, Kalpana J Kallianpur, Cecilia M Shikuma
Inflammation associated with low 25-hydroxyvitamin D (25(OH)D) is associated with increased morbidity and mortality among HIV-infected patients with vitamin D deficiency. We investigated the association between 25(OH)D and soluble biomarkers among HIV-infected patients on stable antiretroviral therapy. This is a cross-sectional study. This study focuses on assessment in subjects 40 years or older on stable antiretroviral therapy (ART) for >3 months. Chemiluminescent immunoassay was used to determine plasma 25(OH)D levels...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27786155/impact-of-tenofovir-disoproxil-fumarate-on-bone-metabolism-and-bone-mass-among-perinatally-hiv-infected-asian-adolescents
#15
Tavitiya Sudjaritruk, Torsak Bunupuradah, Linda Aurpibul, Pope Kosalaraksa, Nia Kurniati, Jiratchaya Sophonphan, Jintanat Ananworanich, Thanyawee Puthanakit
BACKGROUND: This study aimed to determine the effect of tenofovir disoproxil fumarate (TDF) on bone metabolism and bone mass in HIV-infected adolescents. METHODS: This was a sub-study of a cross-sectional multicenter bone health trial that enrolled perinatally HIV-infected Thai and Indonesian adolescents (10-18 years) with viral suppression on antiretroviral therapy. Participants were classified into 2 groups as TDF users and non-users. Bone metabolism-related markers [25-hydroxyvitamin D (25-OHD), intact parathyroid hormone (iPTH), bone turnover biomarkers], and lumbar spine dual-energy X-ray absorptiometry were assessed...
October 27, 2016: Antiviral Therapy
https://www.readbyqxmd.com/read/27763570/vitamin-d-status-and-its-consequences-for-health-in-south-africa
#16
REVIEW
Mary Norval, Anna K Coussens, Robert J Wilkinson, Liza Bornman, Robyn M Lucas, Caradee Y Wright
In this review, reports were retrieved in which vitamin D status, as assessed by serum 25-hydroxyvitamin D [25(OH)D] levels, was measured in South African population groups with varied skin colours and ethnicities. Healthy children and adults were generally vitamin D-sufficient [25(OH)D level >50 nmol/L] but the majority of those aged above 65 years were deficient. A major role for exposure to solar ultraviolet radiation (UVR) in determining 25(OH)D levels was apparent, with the dietary contribution being minor...
October 18, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27716863/severe-vitamin-d-deficiency-in-human-immunodeficiency-virus-infected-pregnant-women-is-associated-with-preterm-birth
#17
Jennifer Jao, Laura Freimanis, Marisa M Mussi-Pinhata, Rachel A Cohen, Jacqueline Pontes Monteiro, Maria Leticia Cruz, Andrea Branch, Rhoda S Sperling, George K Siberry
Background Low maternal vitamin D has been associated with preterm birth (PTB). Human immunodeficiency virus (HIV)-infected pregnant women are at risk for PTB, but data on maternal vitamin D and PTB in this population are scarce. Methods In a cohort of Latin American HIV-infected pregnant women from the National Institute of Child Health and Human Development International Site Development Initiative protocol, we examined the association between maternal vitamin D status and PTB. Vitamin D status was defined as the following 25-hydroxyvitamin D levels: severe deficiency (< 10 ng/mL), deficiency (10-20 ng/mL), insufficiency (21-29 ng/mL), and sufficiency (≥30 ng/mL)...
October 7, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27700140/vitamin-d-deficiency-and-metabolism-in-hiv-infected-and-hiv-uninfected-men-in-the-multicenter-aids-cohort-study
#18
Long Zhang, Adrienne Tin, Todd T Brown, Joseph B Margolick, Mallory D Witt, Frank J Palella, Lawrence A Kingsley, Andrew N Hoofnagle, Lisa P Jacobson, Alison G Abraham
We evaluated associations of serum 25-hydroxyvitamin D (25[OH]D) and 1,25-dihydroxyvitamin D (1,25[OH]2D) levels in a cohort of HIV-infected and HIV-uninfected men at risk for infection in the United States. Stored samples collected between 1999 and 2008 were tested for vitamin D metabolites between 2014 and 2015. Vitamin D deficiency was defined as a serum concentration of 25[OH]D <20 ng/ml. Multivariate models were used to assess associations of various demographic and clinical factors with vitamin D status...
November 17, 2016: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/27699068/validation-protocol-of-vitamin-d-supplementation-in-patients-with-hiv-infection
#19
Elisabet Lerma-Chippirraz, Roberto Güerri-Fernández, Judit Villar García, Alicia González Mena, Ana Guelar Grinberg, María Milagro Montero, Luisa Sorli, Sonia Calzado, Juan Pablo Horcajada, Adolfo Díez-Pérez, Hernando Knobel Freud
Hypovitaminosis D and secondary hyperparathyroidism are frequent among HIV-infected patients. As there are no data about the best supplementation therapy both in treatment and in maintenance, we conducted an observational study of 300 HIV-infected patients for whom vitamin D and parathormone (PTH) had been measured in order to validate a protocol of vitamin D supplementation in patients with HIV-infection. Patients with vitamin D deficiency (defined as 25(OH)D < 10 ng/mL), insufficiency (defined as 25(OH)D < 20 ng/mL), or hyperparathyroidism (PTH > 65 pg/mL) were supplemented with cholecalciferol 16...
2016: AIDS Research and Treatment
https://www.readbyqxmd.com/read/27687153/food-insecurity-among-students-living-with-hiv-strengthening-safety-nets-at-the-nelson-mandela-metropolitan-university-south-africa
#20
L Steenkamp, A Goosen, D Venter, M Beeforth
The HIV prevalence in South Africa among students at higher education institutions (HEIs) in 2008 was reported to be 3.4%, with the highest HIV prevalence found in the Eastern Cape Province. Students at these facilities are also increasingly affected by socio-economic constraints that may impact on food security. Little is known about the impact of food insecurity on HIV-infected students in HEIs in South Africa. The purpose of this paper is to describe food insecurity and the nutritional status among HIV-infected students on the Nelson Mandela Metropolitan University campuses in South Africa, as well as current initiatives to strengthen the safety nets for food-insecure students...
December 2016: SAHARA J: Journal of Social Aspects of HIV/AIDS Research Alliance
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