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https://www.readbyqxmd.com/read/29668141/-prevalence-and-risk-factors-associated-to-tuberculosis-and-non-tuberculous-mycobacterial-infections-in-hiv-positive-patients-in-bogot%C3%A3
#1
Magda Beltrán-León, Francy Pérez-Llanos, Liliana Sánchez, Carlos Parra-López, Myriam Navarrete, Ricardo Sánchez, Carlos Awad, Ana María Granada, Edgardo Quintero, Óscar Briceño, Óscar Cruz, Martha Isabel Murcia
INTRODUCTION: Tuberculosis is one of the most widely distributed infectious diseases worldwide. It is the most common cause of mortality among AIDS patients. In Colombia, 12,918 tuberculosis cases were notified, and 926 deaths were reported in 2015. OBJECTIVE: To determine the prevalence and risk factors associated to mycobacterial infections in HIVpositive patients in two public hospitals from Bogotá. MATERIALS AND METHODS: A prospective and descriptive study was carried out by an active search for tuberculosis cases and non-tuberculous mycobacterial infections in HIV-positive patients...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29661246/risk-factors-and-outcomes-for-the-q151m-and-t69-insertion-hiv-1-resistance-mutations-in-historic-uk-data
#2
Oliver T Stirrup, David T Dunn, Anna Tostevin, Caroline A Sabin, Anton Pozniak, David Asboe, Alison Cox, Chloe Orkin, Fabiola Martin, Patricia Cane
BACKGROUND: The prevalence of HIV-1 resistance to antiretroviral therapies (ART) has declined in high-income countries over recent years, but drug resistance remains a substantial concern in many low and middle-income countries. The Q151M and T69 insertion (T69i) resistance mutations in the viral reverse transcriptase gene can reduce susceptibility to all nucleoside/tide analogue reverse transcriptase inhibitors, motivating the present study to investigate the risk factors and outcomes associated with these mutations...
April 16, 2018: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29659623/loss-of-cxcr6-coreceptor-usage-characterizes-pathogenic-lentiviruses
#3
Katherine S Wetzel, Yanjie Yi, Anjana Yadav, Anya M Bauer, Ezekiel A Bello, Dino C Romero, Frederic Bibollet-Ruche, Beatrice H Hahn, Mirko Paiardini, Guido Silvestri, Martine Peeters, Ronald G Collman
Pandemic HIV-1 originated from the cross-species transmission of SIVcpz, which infects chimpanzees, while SIVcpz itself emerged following the cross-species transmission and recombination of monkey SIVs, with env contributed by the SIVgsn/mus/mon lineage that infects greater spot-nosed, mustached and mona monkeys. SIVcpz and HIV-1 are pathogenic in their respective hosts, while the phenotype of their SIVgsn/mus/mon ancestors is unknown. However, two well-studied SIV infected natural hosts, sooty mangabeys (SMs) and African green monkeys (AGMs), typically remain healthy despite high viral loads; these species express low levels of the canonical coreceptor CCR5, and recent work shows that CXCR6 is a major coreceptor for SIV in these hosts...
April 16, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29656588/the-use-of-funnel-plots-with-regression-as-a-tool-to-visually-compare-hiv-treatment-outcomes-between-centres-adjusting-for-patient-characteristics-and-size-a-uk-collaborative-hiv-cohort-study
#4
M Gompels, S Michael, S Jose, T Hill, R Trevelion, C A Sabin, M T May
OBJECTIVES: A measure used for assessing the effectiveness of HIV care and comparing clinical centres is the proportion of people starting antiretroviral therapy (ART) with viral suppression (VS) after 1 year. We propose a method that adjusts for patients' demographic characteristics, and visually compares this measure between different sites accounting for centre size. METHODS: We analysed viral load measurements for UK Collaborative HIV Cohort (UK CHIC) patients starting ART between 2006 and 2013...
April 14, 2018: HIV Medicine
https://www.readbyqxmd.com/read/29650491/fecal-microbiota-composition-drives-immune-activation-in-hiv-infected-individuals
#5
Charles Preston Neff, Owen Krueger, Kathy Xiong, Sabrina Arif, Nichole Nusbacher, Jennifer M Schneider, Annie W Cunningham, Abigail Armstrong, Sam Li, Martin D McCarter, Thomas B Campbell, Catherine A Lozupone, Brent E Palmer
The inflammatory properties of the enteric microbiota of Human Immunodeficiency Virus (HIV)-infected individuals are of considerable interest because of strong evidence that bacterial translocation contributes to chronic immune activation and disease progression. Altered enteric microbiota composition occurs with HIV infection but whether altered microbiota composition or increased intestinal permeability alone drives peripheral immune activation is controversial. To comprehensively assess the inflammatory properties of HIV-associated enteric microbiota and relate these to systemic immune activation, we developed methods to purify whole fecal bacterial communities (FBCs) from stool for use in in vitro immune stimulation assays with human cells...
March 26, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29649309/high-quality-of-life-treatment-tolerability-safety-and-efficacy-in-hiv-patients-switching-from-triple-therapy-to-lopinavir-ritonavir-monotherapy-a-randomized-clinical-trial
#6
Juan Pasquau, Carmen Hidalgo-Tenorio, María Luisa Montes, Alberto Romero-Palacios, Jorge Vergas, Isabel Sanjoaquín, José Hernández-Quero, Koldo Aguirrebengoa, Francisco Orihuela, Arkaitz Imaz, María José Ríos-Villegas, Juan Flores, María Carmen Fariñas, Pilar Vázquez, María José Galindo, Isabel García-Mercé, Fernando Lozano, Ignacio de Los Santos, Samantha Elizabeth de Jesus, Coral García-Vallecillos
TRIAL DESIGN: The QoLKAMON study evaluated quality of life, efficacy and treatment safety in HIV patients receiving lopinavir/ritonavir in monotherapy (MT) versus continuing combined antiretroviral triple treatment with a boosted protease inhibitor (TT). METHODS: This was a 24-week, open-label, multicentre study in virologically-suppressed HIV-infected participants (N = 225) with a 2:1 randomization: 146 patients who switched to MT were compared with 79 patients who remained on a TT regimen...
2018: PloS One
https://www.readbyqxmd.com/read/29648490/therapeutic-conserved-elements-ce-dna-vaccine-induces-strong-t-cell-responses-against-highly-conserved-viral-sequences-during-simian-human-immunodeficiency-virus-infection
#7
Paul Munson, Yi Liu, Debra Bratt, James T Fuller, Xintao Hu, George N Pavlakis, Barbara K Felber, James I Mullins, Deborah Heydenburg Fuller
HIV-specific T-cell responses play a key role in controlling HIV infection, and therapeutic vaccines for HIV that aim to improve viral control will likely need to improve on the T-cell responses induced by infection. However, in the setting of chronic infection, an effective therapeutic vaccine must overcome the enormous viral genetic diversity and the presence of pre-existing T-cell responses that are biased toward immunodominant T-cell epitopes that can readily mutate to evade host immunity and thus potentially provide inferior protection...
April 12, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29643246/the-dynamics-of-siv-2-ltr-circles-in-the-presence-and-absence-of-cd8-cells
#8
Benjamin B Policicchio, Erwing Fabian Cardozo, Paola Sette, Cuiling Xu, George Haret-Richter, Tammy Dunsmore, Cristian Apetrei, Ivona Pandrea, Ruy M Ribeiro
CD8+ cells play a key role in HIV/SIV infection, but their specific mechanism(s) of action in controlling the virus are unclear. 2-LTR circles are extrachromosomal products generated upon failed integration of HIV/SIV. To understand the specific effects of CD8+ cells on infected cells, we analyzed the dynamics of 2-LTR circles in SIVmac251-infected rhesus macaques (RM) treated with an integrase inhibitor (INT). Twenty RMs underwent CD8+ cell depletion, received RAL monotherapy or a combination of both. Blood, lymph nodes (LNs) and gut biopsies were routinely sampled...
April 11, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29643199/usefulness-of-kaposi-sarcoma-associated-herpesvirus-kshv-dna-viral-load-in-whole-blood-for-the-diagnosis-and-monitoring-of-kshv-associated-diseases
#9
Aude Jary, Valentin Leducq, Romain Palich, Adélie Gothland, Diane Descamps, Véronique Joly, Sidonie Lambert-Niclot, Corinne Amiel, Ana Canestri, Audrey Mirand, Elyanne Gault, Astrid Vabret, Marc-Antoine Valantin, Christine Katlama, Vincent Calvez, Nicolas Dupin, Jean-Philippe Spano, Anne-Geneviève Marcelin
Kaposi Sarcoma-Associated Herpesvirus (KSHV) is the etiologic agent of Kaposi's sarcoma (KS) but also in multicentric variant of Castleman disease (MCD) and primary effusion lymphoma (PEL), diseases occurring primarily in HIV-infected patients (1).….
April 11, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29630031/elevated-cell-free-mitochondrial-dna-in-filtered-plasma-is-associated-with-hiv-infection-and-inflammation
#10
Omair Arshad, Izabella Gadawska, Beheroze Sattha, Hélène C F Côté, Anthony Y Y Hsieh
BACKGROUND: Increased cell-free DNA levels are associated with poor health outcomes, and cell-free mitochondrial DNA (cf-mtDNA) has proinflammatory properties. Given that HIV infection is associated with chronic inflammation, we investigated the relationship between cf-mtDNA and proinflammatory cytokine interleukin-6 (IL-6) in the context of HIV infection. We also optimized separation of cell-free plasma from blood. SETTING: In this retrospective cross-sectional study, we collected blood, demographic information, and clinical data from 99 HIV-infected and 103 HIV-uninfected adults and children enrolled in the Children and Women: AntiRetrovirals and Markers of Aging pan-Canadian (CARMA) cohort...
May 1, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29630021/changing-patterns-and-factors-associated-with-mode-of-delivery-among-pregnant-women-with-human-immunodeficiency-virus-infection-in-the-united-states
#11
Kartik K Venkatesh, Leavitt Morrison, Elizabeth G Livingston, Alice Stek, Jennifer S Read, David E Shapiro, Ruth E Tuomala
OBJECTIVE: To describe patterns and factors associated with mode of delivery among pregnant women with human immunodeficiency virus (HIV) infection in the United States in relation to evolving HIV-in-pregnancy guidelines. METHODS: We conducted an analysis of two observational studies, Pediatric AIDS Clinical Trials Group and International Maternal Pediatric Adolescent AIDS Clinical Trials Network Protocol P1025, which enrolled pregnant women with HIV infection from 1998 to 2013 at more than 60 U...
April 6, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29629683/near-real-time-tracking-of-gaps-in-prevention-of-mother-to-child-transmission-of-hiv-in-three-districts-of-kwazulu-natal-province-south-africa
#12
F Moyo, A Haeri Mazanderani, S Bhardwaj, O B Mhlongo, T Kufa, K Ng'oma, B A Smith, G G Sherman
BACKGROUND: Identifying and addressing gaps in the prevention of mother-to-child transmission of HIV (PMTCT) is required if South Africa (SA) is to achieve targets for eliminating MTCT (eMTCT). Potential PMTCT gaps that increase MTCT risk include late maternal HIV diagnosis, lack of or delayed antiretroviral therapy (ART) during pregnancy and breastfeeding, and lack of effective prophylaxis for HIV-exposed infants. OBJECTIVES: To investigate, in near real time, PMTCT gaps among HIV-infected infants in three districts of KwaZulu-Natal Province, SA...
March 28, 2018: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/29628513/hot-news-impact-of-low-level-viremia-on-treatment-outcomes-during-art-is-it-time-to-revise-the-definition-of-virological-failure
#13
Eva Poveda, Manuel Crespo
The level of HIV-RNA in plasma (HIV viral load) is the main marker used to monitor the virological response to antiretroviral therapy (ART) in HIV-infected patients. The threshold used to define virological suppression has historically been dictated by the limits of detection of the commercial assays used to quantify the plasma viral load. Thus, as more sensitive assays have proliferated and become more widely available, the definition has shifted from < 400 cop/mL with the first generation assays, to < 50 cop/mL, to < 20 cop/mL currently...
January 2018: AIDS Reviews
https://www.readbyqxmd.com/read/29626043/hiv-1-disease-progression-in-immune-competent-hiv-1-infected-and-breastfeeding-mothers-participating-in-the-anrs-12174-clinical-trial-in-burkina-faso-south-africa-uganda-and-zambia-a-cohort-study
#14
Eric Nagaonle Somé, Ingunn M S Engebretsen, Nicolas Nagot, Nicolas Yelbomkan Meda, Roselyne Vallo, Chipepo Kankasa, James K Tumwine, Mandisa Singata-Madliki, Kim Harper, G Justus Hofmeyr, Philippe Van de Perre, Thorkild Tylleskär
OBJECTIVE: We have assessed HIV-1 disease progression among HIV-1-positive mothers in relation to duration of any or exclusive breast feeding in the context of ANRS 12174 trial. METHODS: The analysis was completed on 203, 212, 272 and 529 HIV-1-positive and lactating mothers with CD4 count >350 cells/µL from Burkina Faso, South Africa, Uganda and Zambia, respectively. The trial compared lamivudine and lopinavir/ritonavir as a peri-exposure prophylaxis during a 50-week follow-up time...
April 5, 2018: BMJ Open
https://www.readbyqxmd.com/read/29625021/hepatitis-c-viral-load-in-hcv-monoinfected-and-hcv-hiv-1-hcv-htlv-1-2-and-hcv-hiv-htlv-1-2-co-infected-patients-from-s%C3%A3-o-paulo-brazil
#15
Fabiana Aparecida Alves, Karoline Rodrigues Campos, Marcílio Figueiredo Lemos, Regina Célia Moreira, Adele Caterino-de-Araujo
Co-infections of hepatitis C virus (HCV) and either human immunodeficiency virus type 1 (HIV-1), human T-cell lymphotropic virus type 1 (HTLV-1) or type 2 (HTLV-2) have been described as having an impact on HCV viremia and subsequent disease progression. HCV load in serum samples from 622 patients (343 males, 279 females; median age 50.8 years) from São Paulo/southeast Brazil was analyzed using the Abbott Real Time HCV assay (Abbott Molecular Inc., IL, USA). Samples were obtained from HCV-monoinfected (n=548), HCV/HIV-1- (n=41), HCV/HTLV-1- (n=16), HCV/HTLV-2- (n=8), HCV/HIV/HTLV-1- (n=4), and HCV/HIV/HTLV-2-co-infected (n=5) patients, and results were compared among the groups and according to sex...
April 3, 2018: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29624603/factors-associated-with-tuberculosis-treatment-delay-in-patients-co-infected-with-hiv-in-a-high-prevalence-area-in-brazil
#16
Betânia M F Nogueira, Valéria C Rolla, Kevan M Akrami, Susan M Kiene
BACKGROUND: Worldwide, about 11% of Tuberculosis (TB) cases occur in people living with HIV (PLHIV) and it is the leading cause of death in this population. An important step towards reducing the incidence and mortality of TB in PLHIV is to reduce the time from onset of symptoms to treatment. Factors related to TB treatment delay therefore need to be understood. METHODS: Using data from a prospective cohort study of patients diagnosed with TB at the National Institute of Infectious Disease, at the Oswaldo Cruz Foundation, Rio de Janeiro, Brazil we conducted a survival analysis to identify factors associated with patient and health care treatment delay...
2018: PloS One
https://www.readbyqxmd.com/read/29623220/high-prevalence-of-hypertension-in-ethiopian-and-non-ethiopian-hiv-infected-adults
#17
Maya Korem, Tali Wallach, Michael Bursztyn, Shlomo Maayan, Karen Olshtain-Pops
Objectives: Prevalence of hypertension has not been studied in the Ethiopian HIV-infected population, which represents 60% of the patients in our AIDS unit. Our aim was to identify risk factors and characterize the prevalence of hypertension in the population monitored at our unit. Methods: A retrospective chart review categorized subjects according to their blood pressure levels. Hypertension prevalence was determined and stratified according to variables perceived to contribute to elevated blood pressure...
2018: International Journal of Hypertension
https://www.readbyqxmd.com/read/29622527/epic-allies-a-gamified-mobile-phone-app-to-improve-engagement-in-care-antiretroviral-uptake-and-adherence-among-young-men-who-have-sex-with-men-and-young-transgender-women-who-have-sex-with-men-protocol-for-a-randomized-controlled-trial
#18
Sara LeGrand, Kathryn E Muessig, Alyssa Platt, Karina Soni, Joseph R Egger, Nkechinyere Nwoko, Tobias McNulty, Lisa B Hightow-Weidman
BACKGROUND: In the United States, young men who have sex with men (YMSM) and transgender women who have sex with men (YTWSM) bear a disproportionate burden of prevalent and incident HIV infections. Once diagnosed, many YMSM and YTWSM struggle to engage in HIV care, adhere to antiretroviral therapy (ART), and achieve viral suppression. Computer-based interventions, including those focused on behavior change, are recognized as effective tools for engaging youth. OBJECTIVE: The purpose of the study described in this protocol is to evaluate the efficacy of Epic Allies, a theory-based mobile phone app that utilizes game mechanics and social networking features to improve engagement in HIV care, ART uptake, ART adherence, and viral suppression among HIV-positive YMSM and YTWSM...
April 5, 2018: JMIR Research Protocols
https://www.readbyqxmd.com/read/29620934/factors-associated-with-lower-respiratory-tract-infections-in-hiv-exposed-uninfected-infants
#19
Adriana Weinberg, Marisa Mussi-Pinhata, Qilu Yu, Rachel A Cohen, Volia C Almeida, Fabiana R Amaral, Laura Freimanis, D Robert Harris, Christiana Smith, George Siberry
OBJECTIVES: To identify factors that predispose HIV-exposed uninfected infants (HEUs) to higher incidence of severe infections, hospitalization and death in the first 6 to 24 months of life compared with HEUs with and without lower respiratory tract infection (LRTI) in the first 6 months of life. DESIGN: Nested case-control study of 107 LRTI+ infants enrolled in the NISDI Perinatal and LILAC studies with and 140 LRTI- in the first 6 months of, matched by date and place of birth...
March 18, 2018: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29620926/patient-and-facility-correlates-of-racial-differences-in-viral-control-for-black-and-white-veterans-with-hiv-infection-in-the-veterans-administration
#20
Mary S Vaughan Sarrazin, Michael E Ohl, Kelly K Richardson, Steven M Asch, Allen L Gifford, Barbara G Bokhour
Black persons with HIV are less likely than white persons to experience viral control even while in treatment. We sought to understand whether patient characteristics and site of care explain these differences using a cross-sectional analysis of medical records. Our cohort included 8779 black and 7836 white patients in the Veterans Administration (VA) health system with HIV who received antiretroviral medication during 2013. Our primary outcome, viral control, was defined as HIV serum RNA <200 copies/mL...
March 2018: AIDS Patient Care and STDs
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