Brazil

Vitamin A and D deficiencies associated with incident tuberculosis in HIV-infected patients initiating antiretroviral therapy in multinational case-cohort study

Post Date: 
2017-02-06
Publication: 
Journal of Acquired Immune Deficiency Syndromes
Introduction: Numerous micronutrients have immunomodulatory roles that may influence risk of tuberculosis (TB), but the association between baseline micronutrient deficiencies and incident TB after antiretroviral (ART) initiation in HIV-infected individuals is not well characterized. Methods: We...

Sex-related differences in inflammatory and immune activation markers before and after combined antiretroviral therapy initiation

Post Date: 
2016-10-01
Publication: 
Journal of Acquired Immune Deficiency Syndromes
Background: Women progress to death at the same rate as men despite lower plasma HIV RNA (viral load). We investigated sex-specific differences in immune activation and inflammation as a potential explanation. Methods: Inflammatory and immune activation markers [interferon γ, tumor necrosis factor...

Inflammation and change in body weight with antiretroviral therapy initiation in a multinational cohort of HIV-infected adults

Post Date: 
2016-04-01
Publication: 
The Journal of Infectious Diseases
Background: Both wasting and obesity are associated with inflammation, but the extent to which body weight changes influence inflammation during human immunodeficiency virus infection is unknown. Methods: Among a random virologically suppressed participants of the Prospective Evaluation of...

Persistently elevated C-reactive protein level in the first year of antiretroviral therapy, despite virologic suppression, is associated with HIV disease progression in resource-constrained settings

Post Date: 
2016-04-01
Publication: 
The Journal of Infectious Diseases
A case-cohort analysis of human immunodeficiency virus (HIV)-infected individuals receiving antiretroviral therapy (ART) was performed within a multicountry randomized trial (PEARLS) to assess the prevalence of persistently elevated C-reactive protein (CRP) levels, based on serial measurements of...

Empirical tuberculosis therapy versus isoniazid in adult outpatients with advanced HIV initiating antiretroviral therapy (REMEMBER): a multicountry open-label randomised controlled trial

Post Date: 
2016-03-19
Publication: 
The Lancet
Background: Mortality within the first 6 months after initiating antiretroviral therapy is common in resource-limited settings and is often due to tuberculosis in patients with advanced HIV disease. Isoniazid preventive therapy is recommended in HIV-positive adults, but subclinical tuberculosis can...

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

Post Date: 
2016-02-10
Publication: 
Clinical Nutrition
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)...

Soluble CD14: An independent biomarker for risk of HIV mother-to-child transmission in setting of pre- and post-exposure antiretroviral prophylaxis

Post Date: 
2015-10-06
Publication: 
The Journal of Infectious Diseases
Elevated soluble CD14 (sCD14) concentrations, a marker of monocyte activation, predicts adverse outcomes in human immunodeficiency virus (HIV)-infected adults. To examine the association of sCD14 concentrations with the risk of mother-to-child transmission (MTCT) of HIV, we nested a case-control...

Pre-cART elevation of CRP and CD4+ T-cell immune activation associated with HIV clinical progression in a multinational case-cohort study

Post Date: 
2015-10-01
Publication: 
Journal of Acquired Immune Deficiency Syndromes
Background: Despite the success of combination antiretroviral therapy (cART), a subset of HIV-infected patients who initiate cART develop early clinical progression to AIDS; therefore, some cART initiators are not fully benefitted by cART. Immune activation pre-cART may predict clinical progression...

Concurrent anemia and elevated CRP predicts HIV clinical treatment failure, including TB, post-antiretroviral therapy initiation

Post Date: 
2015-07-01
Publication: 
Clinical Infectious Diseases
Background: Anemia is a known risk factor for clinical failure following antiretroviral therapy (ART). Notably, anemia and inflammation are interrelated, and recent studies have associated elevated C-reactive protein (CRP), an inflammation marker, with adverse human immunodeficiency virus (HIV)...

C-reactive protein (CRP), interferon gamma-inducible protein 10 (IP-10), and lipopolysaccharide (LPS) are associated with risk of tuberculosis after initiation of antiretroviral therapy in resource-limited settings

Post Date: 
2015-02-26
Publication: 
PLOS One
Objective: The association between pre-antiretroviral (ART) inflammation and immune activation and risk for incident tuberculosis (TB) after ART initiation among adults is uncertain. Design: Nested case-control study (n = 332) within ACTG PEARLS trial of three ART regimens among 1571 HIV-infected,...

Pre-antiretroviral therapy selenium status predicts WHO stages 3, 4 or death but not virologic failure post-antiretroviral therapy

Post Date: 
2014-11-13
Publication: 
Nutrients
A case-cohort study, within a multi-country trial of antiretroviral therapy (ART) efficacy (Prospective Evaluation of Antiretrovirals in Resource Limited Settings (PEARLS)), was conducted to determine if pre-ART serum selenium deficiency is independently associated with human immunodeficiency virus...

25-Hydroxyvitamin D insufficiency and deficiency is associated with HIV disease progression and virological failure post-antiretroviral therapy initiation in diverse multinational settings

Post Date: 
2014-07-15
Publication: 
The Journal of Infectious Diseases
Background: Low 25-hydroxyvitamin D (25(OH)D) has been associated with increased HIV mortality, but prospective studies assessing treatment outcomes after combination antiretroviral therapy (cART) initiation in resource-limited settings are lacking. Methods: A case-cohort study (N = 411) was nested...

Taking the long view on CREATE studies' finding

Post Date: 
2014-05-15
Publication: 
The Lancet Infectious Disease
In the past 10 years, the Consortium to Respond Effectively to the AIDS TB Epidemic (CREATE) has done three large trials exploring new strategies to control HIV-related tuberculosis. Recognising that the global strategy for tuberculosis control of a decade ago (mainly directly observed short-course...

Change in Vitamin D levels occurs early after antiretroviral therapy initiation and depends on treatment regimen in resource-limited settings

Post Date: 
2014-04-21
Publication: 
PLOS One
Background: Vitamin D has wide-ranging effects on the immune system, and studies suggest that low serum vitamin D levels are associated with worse clinical outcomes in HIV. Recent studies have identified an interaction between antiretrovirals used to treat HIV and reduced serum vitamin D levels,...

Screening for pulmonary tuberculosis in HIV-infected individuals: AIDS Clinical Trials Group Protocol A5253

Post Date: 
2013-04-15
Publication: 
International Journal of Tuberculosis and Lung Disease
Background: Improved tuberculosis (TB) screening is urgently needed for human immunodeficiency virus (HIV) infected patients. Methods: An observational, multi-country, cross-sectional study of HIV-infected patients to compare a standardized diagnostic evaluation (SDE) for TB with standard of care (...

Detection of microbial translocation in HIV and SIV infection using the limulus amebocyte lysate assay is masked by serum and plasma

Post Date: 
2012-08-01
Publication: 
PLOS One
Objective: Microbial translocation (MT) is thought to be a major contributor to the pathogenesis of HIV-related immune activation, and circulating lipopolysaccharide (LPS) from Gram-negative bacteria is the principle measurement of this process. However, related research has been impeded by...

Prevention of HIV-1 infection with early antiretroviral therapy

Post Date: 
2011-08-11
Publication: 
New England Journal of Medicine
Background: Antiretroviral therapy that reduces viral replication could limit the transmission of human immunodeficiency virus type 1 (HIV-1) in serodiscordant couples. Methods: In nine countries, we enrolled 1763 couples in which one partner was HIV-1–positive and the other was HIV-1–negative; 54...
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