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https://www.readbyqxmd.com/read/29219134/does-infant-feeding-method-influence-the-incidence-and-pattern-of-morbidities-among-human-immunodeficiency-virus-exposed-uninfected-nigerian-infants
#1
Olusoga Babatunde Ogunfowora, Tinuade Adetutu Ogunlesi, Abiodun Folashade Adekanmbi, Victor Ayodeji Ayeni
BACKGROUND: Human immunodeficiency virus (HIV)-exposed infants enrolled into the prevention of mother-to-child transmission of HIV program generally receive antiretroviral therapy (ARV), but the feeding methods differ based on several socioeconomic and cultural differences. OBJECTIVE: The objective of the study was to examine the incidence and pattern of morbidities among HIV-exposed uninfected (HEU) Nigerian infants and determine any relationship with infant feeding methods...
October 2017: Indian Journal of Public Health
https://www.readbyqxmd.com/read/29210832/quality-of-caregiving-is-positively-associated-with-neurodevelopment-during-the-first-year-of-life-among-hiv-exposed-uninfected-children-in-uganda
#2
Itziar Familiar, Shalean M Collins, Alla Sikorskii, Horacio Ruisenor-Escudero, Barnabas Natamba, Paul Bangirana, Elizabeth M Widen, Daniel Achidri, Harriet Achola, Daniel Onen, Michael Boivin, Sera L Young
OBJECTIVE: We sought to evaluate if maternal characteristics and infant developmental milieu were predictive of early cognitive development in HIV-exposed uninfected (HEU) and un-exposed uninfected (HU) infants in Uganda. DESIGN: Longitudinal pregnancy study. METHODS: Ugandan women (n=228) were enrolled into the Postnatal Nutrition and Psychosocial Health Outcomes (PostNAPS) study with a 2:1 HIV-uninfected:infected ratio. Maternal socio-demographic, perceived social support, and depressive symptomatology were assessed...
November 27, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29206312/risk-of-cancer-in-children-exposed-to-antiretroviral-nucleoside-analogues-in-utero-the-french-experience
#3
Mira Hleyhel, Stéphanie Goujon, Jeanne Sibiude, Roland Tubiana, Catherine Dollfus, Albert Faye, Laurent Mandelbrot, Jacqueline Clavel, Josiane Warszawski, Stéphane Blanche
All nucleoside analogues for treating HIV infection, due to their capacity to integrate into and alter human DNA, are experimentally genotoxic to some extent. The long-term oncogenic risk after in utero exposure remains to be determined. Cancer incidence in uninfected children exposed to nucleos(t)ide reverse transcriptase inhibitors (NRTIs) was evaluated, by cross-checking against the National Cancer Registry, in the French perinatal study of children born to HIV+ mothers. Twenty-one cancers were identified in 15,163 children (median age: 9...
December 5, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/29170447/monocyte-derived-exosomes-upon-exposure-to-cigarette-smoke-condensate-alter-their-characteristics-and-show-protective-effect-against-cytotoxicity-and-hiv-1-replication
#4
Sanjana Haque, Namita Sinha, Sabina Ranjit, Narasimha M Midde, Fatah Kashanchi, Santosh Kumar
Smoking is known to exacerbate HIV-1 pathogenesis, especially in monocytes, through the oxidative stress pathway. Exosomes are known to alter HIV-1 pathogenesis through inter-cellular communication. However, the role of exosomes in smoking-mediated HIV-1 pathogenesis is unknown. In this study, we investigated the effect of cigarette smoke condensate (CSC) on the characteristics of monocyte-derived exosomes and their influence on HIV-1 replication. Initially, we demonstrated that CSC reduced total protein and antioxidant capacity in exosomes derived from HIV-1-infected and uninfected macrophages...
November 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29168068/predicting-arrest-in-a-sample-of-youth-perinatally-exposed-to-hiv-the-intersection-of-hiv-and-key-contextual-factors
#5
Katherine S Elkington, Zachary Peters, C Jean Choi, Amelia Bucek, Cheng-Shiun Leu, Elaine J Abrams, Claude A Mellins
We examined the role of youth HIV status and other key factors on past-year arrest in perinatally HIV-exposed but uninfected (PHIV-) and perinatally HIV-infected (PHIV+) youth using data from a multi-site study of psychosocial behaviors in PHIV-exposed urban youth (N = 340; 61% PHIV+; 51% female; ages 9-16 at baseline). Youth and caregivers were administered 5 interviews, spanning approximately 7.5 years. Using longitudinal logistic mixed-effect models, we explored the association between past year arrest, internal [e...
November 22, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/29165579/investigating-mediators-of-the-poor-pneumonia-outcomes-of-human-immunodeficiency-virus-exposed-but-uninfected-children
#6
Matthew S Kelly, Jiayin Zheng, Sefelani Boiditswe, Andrew P Steenhoff, Kristen A Feemster, Tonya Arscott-Mills, Boitshepe Seme, Bakgaki Ratshaa, Ikanyeng Rulaganyang, Mohamed Z Patel, Savarra Mantzor, Samir S Shah, Coleen K Cunningham
Background: Human immunodeficiency virus-exposed but uninfected (HIV-EU) children have a higher mortality rate than the children of HIV-negative mothers (HIV-unexposed). Causal mediators of the poor health outcomes of HIV-EU children remain poorly defined. Methods: We conducted a hospital-based prospective cohort study of children aged 1 to 23 months with clinically defined pneumonia. The children were recruited at a referral hospital in Gaborone, Botswana, between April 2012 and June 2016...
November 20, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/29163468/the-role-of-natural-antibodies-to-cc-chemokine-receptor-5-in-hiv-infection
#7
REVIEW
Assunta Venuti, Claudia Pastori, Lucia Lopalco
The CC chemokine receptor 5 (CCR5) is responsible for immune and inflammatory responses by mediation of chemotactic activity in leukocytes, although it is expressed on different cell types. It has been shown to act as co-receptor for the human and simian immunodeficiency viruses (HIV-1, HIV-2, and SIV). Natural reactive antibodies (Abs) recognizing first loop (ECL1) of CCR5 have been detected in several pools of immunoglobulins from healthy donors and from several cohorts of either HIV-exposed but uninfected subjects (ESN) or HIV-infected individuals who control disease progression (LTNP) as well...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29161262/the-value-of-confirmatory-testing-in-early-infant-hiv-diagnosis-programmes-in-south-africa-a-cost-effectiveness-analysis
#8
Lorna Dunning, Jordan A Francke, Divya Mallampati, Rachel L MacLean, Martina Penazzato, Taige Hou, Landon Myer, Elaine J Abrams, Rochelle P Walensky, Valériane Leroy, Kenneth A Freedberg, Andrea Ciaranello
BACKGROUND: The specificity of nucleic acid amplification tests (NAATs) used for early infant diagnosis (EID) of HIV infection is <100%, leading some HIV-uninfected infants to be incorrectly identified as HIV-infected. The World Health Organization recommends that infants undergo a second NAAT to confirm any positive test result, but implementation is limited. Our objective was to determine the impact and cost-effectiveness of confirmatory HIV testing for EID programmes in South Africa...
November 2017: PLoS Medicine
https://www.readbyqxmd.com/read/29140938/immunity-following-childhood-vaccinations-in-perinatally-hiv-exposed-children-with-and-without-hiv-infection-in-latin-america
#9
Regina Cm Succi, Margot R Krauss, D Robert Harris, Daisy M Machado, Maria I de Moraes-Pinto, Marisa M Mussi-Pinhata, Noris Pavia Ruz, Russell B Pierre, Lenka A Kolevic Roca, Esaú Joao, Irene Foradori, Marcelo C Scotta, Rohan Hazra, George K Siberry
BACKGROUND: Perinatally HIV-infected (PHIV) children are at risk for undervaccination and poor vaccine response at four years of age. Childhood vaccine coverage and immune response were compared between PHIV and HIV-exposed uninfected (HEU) children in Latin America and the Caribbean. METHODS: PHIV and HEU children were enrolled prospectively at fifteen sites from 2002-2009. Full vaccination by age four years was defined as: three hepatitis B virus (HBV) vaccine doses; four tetanus toxoid-containing vaccine doses; three doses of Haemophilus influenzae type b (Hib) vaccine by age 12 months or ≥1 dose given after age 12 months; one measles-containing vaccine dose; one rubella-containing vaccine dose...
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29131457/neurodevelopmental-outcome-of-hiv-exposed-but-uninfected-infants-in-the-mother-and-infants-health-study-cape-town-south-africa
#10
Priscilla E Springer, Amy L Slogrove, Barbara Laughton, Julie A Bettinger, Henriëtte H Saunders, Christopher D Molteno, Mariana Kruger
OBJECTIVES: To compare neurodevelopmental outcomes of HIV-exposed uninfected (HEU) and HIV-unexposed uninfected (HUU) infants in a peri-urban South African population. HEU infants living in Africa face unique biological and environmental risks but uncertainty remains regarding their neurodevelopmen-tal outcome. This is partly due to lack of well-matched HUU comparison groups needed to adjust for confounding factors. METHODS: This was a prospective cohort study of infants enrolled at birth from a low- risk midwife obstetric facility...
November 13, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29119726/cotrimoxazole-prophylaxis-was-associated-with-enteric-commensal-bacterial-resistance-among-hiv-exposed-infants-in-a-randomized-controlled-trial-botswana
#11
Kathleen M Powis, Sajini Souda, Shahin Lockman, Gbolahan Ajibola, Kara Bennett, Jean Leidner, Michael D Hughes, Sikhulile Moyo, Erik van Widenfelt, Haruna B Jibril, Joseph Makhema, Max Essex, Roger L Shapiro
INTRODUCTION: Despite declining risk of vertical HIV transmission, prophylactic cotrimoxazole (CTX) remains widely used to reduce morbidity and mortality in the event of HIV infection among exposed infants, with an inherent risk of conferring commensal antimicrobial resistance. Using data from a randomized, placebo-controlled trial of infant CTX prophylaxis, we sought to quantify emergence of antibiotic resistance. METHODS: HIV-exposed uninfected infants enrolled in the Botswana Mpepu study were randomized to prophylactic CTX or placebo between 14 and 34 days of life and continued through 15 months...
November 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/29112074/toll-like-receptor-tlr-9-polymorphism-is-associated-with-increased-epstein-barr-virus-and-cytomegalovirus-acquisition-in-hiv-exposed-infants
#12
Kristin Beima-Sofie, Dalton Wamalwa, Elizabeth Maleche-Obimbo, Jairam R Lingappa, Romel Mackelprang, Soren Gantt, Grace John-Stewart, Corey Casper, Jennifer A Slyker
Polymorphisms in the Toll-Like Receptor (TLR9) 1635 locus have been associated with HIV-1 acquisition and progression. Cytomegalovirus (CMV) and Epstein-Barr virus (EBV) acquisition were compared between Kenyan HIV-exposed infants by 1635 genotype. Having 1 or more copies of the 1635A allele was associated with increased CMV acquisition in HIV-infected infants (42% vs 11%, p = 0.03) and increased risk of EBV acquisition in HIV-exposed uninfected infants (HR = 4.2, p = 0.02) compared to 1635GG. Additionally, 1635A was associated with 0...
November 2, 2017: AIDS
https://www.readbyqxmd.com/read/29112069/neuropsychological-performance-in-african-children-with-hiv-enrolled-in-a-multi-site-anti-retroviral-clinical-trial
#13
Michael J Boivin, Linda Barlow-Mosha, Miriam Chernoff, Barbara Laughton, Bonnie Zimmer, Celeste Joyce, Mutsa Bwakura-Dangarembizi, Mmule Ratswana, Nasreen Abrahams, Lee Fairlie, Hermien Gous, Portia Kamthunzi, Katie McCarthy, Itziar Familiar-Lopez, Patrick Jean-Phillippe, Joan Coetzee, Avy Violari, Mark Cotton, Paul Palumbo
OBJECTIVE & DESIGN: Children with HIV infection (HIV+) are at neuropsychological risk, but few studies have evaluated this at multiple sites in low and middle income countries (LMICs). We compared neuropsychological outcomes at enrollment (>5 yrs age) among HIV+, HIV-uninfected perinatally-exposed (HEU), and HIV unexposed (HU) children from 4 sub-Saharan countries. METHODS: IMPAACT P1060 compared Nevirapine (NVP) versus Lopinavir/Ritonavir (LPVr)-based ART in HIV-infected children 6 to 35 months of age...
November 2, 2017: AIDS
https://www.readbyqxmd.com/read/29108003/schistosoma-other-helminth-infections-and-associated-risk-factors-in-preschool-aged-children-in-urban-tanzania
#14
Khadija Said, Jerry Hella, Stefanie Knopp, Tatu Nassoro, Neema Shija, Fatma Aziz, Francis Mhimbira, Christian Schindler, Upendo Mwingira, Anna M Mandalakas, Karim Manji, Marcel Tanner, Jürg Utzinger, Lukas Fenner
BACKGROUND: Despite the high prevalence of helminth infections among preschool-aged children, control programs in sub-Saharan countries primarily focus on school-aged populations. We assessed the prevalence of helminth infections and determined risk factors for infection among preschool-aged children in the urban setting of Dar es Salaam, Tanzania. METHODOLOGY: Starting in October 2015, we conducted a 12-month prospective study among tuberculosis (TB)-exposed children under the age of 5 years and unexposed controls from neighboring households...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29093555/exosomes-derived-from-hiv-1-infected-dcs-mediate-viral-trans-infection-via-fibronectin-and-galectin-3
#15
Rutuja Kulkarni, Anil Prasad
Exosomes are membrane enclosed nano-sized vesicles actively released into the extracellular milieu that can harbor genomic, proteomic and lipid cargos. Functionally, they are shown to regulate cell-cell communication and transmission of pathogens. Though studies have implicated a role for exosomes in HIV-1 pathogenesis, their mechanisms are not well defined. Here, we characterized exosomes derived from uninfected or HIV-1 infected T-cells and DCs. We demonstrate substantial differences in morphological, molecular and biogenesis machinery between exosomes derived from these two immune cell types...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29066544/maternal-but-not-infant-anti-hiv-1-neutralizing-antibody-response-associates-with-enhanced-transmission-and-infant-morbidity
#16
Melissa Ghulam-Smith, Alex Olson, Laura F White, Charles S Chasela, Sascha R Ellington, Athena P Kourtis, Denise J Jamieson, Gerald Tegha, Charles M van der Horst, Manish Sagar
A significant number of infants acquire HIV-1 through their infected mother's breast milk, primarily due to limited access to antiretrovirals. Passive immunization with neutralizing antibodies (nAbs) may prevent this transmission. Previous studies, however, have generated conflicting results about the ability of nAbs to halt mother-to-child transmission (MTCT) and their impact on infant outcomes. This study compared plasma neutralizing activity in exposed infants and the infected mothers (n = 63) against heterologous HIV-1 variants and the quasispecies present in the mother...
October 24, 2017: MBio
https://www.readbyqxmd.com/read/29066542/mechanisms-of-cns-viral-seeding-by-hiv-cd14-cd16-monocytes-establishment-and-reseeding-of-viral-reservoirs-contributing-to-hiv-associated-neurocognitive-disorders
#17
Mike Veenstra, Rosiris León-Rivera, Ming Li, Lucio Gama, Janice E Clements, Joan W Berman
HIV reservoirs persist despite antiretroviral therapy (ART) and are established within a few days after infection. Infected myeloid cells in the central nervous system (CNS) may contribute to the establishment of a CNS viral reservoir. The mature CD14(+) CD16(+) monocyte subset enters the CNS in response to chemokines, including CCL2. Entry of infected CD14(+) CD16(+) monocytes may lead to infection of other CNS cells, including macrophages or microglia and astrocytes, and to release of neurotoxic early viral proteins and additional cytokines...
October 24, 2017: MBio
https://www.readbyqxmd.com/read/29062860/in-utero-art-exposure-and-birth-and-early-growth-outcomes-among-hiv-exposed-uninfected-infants-attending-immunization-services-results-from-national-pmtct-surveillance-south-africa
#18
Vundli Ramokolo, Ameena E Goga, Carl Lombard, Tanya Doherty, Debra J Jackson, Ingunn Ms Engebretsen
BACKGROUND: Despite the recognized benefit of antiretroviral therapy (ART) for preventing and treating HIV, some studies have reported adverse birth outcomes with in utero ART exposure. We evaluated the effect of infant in utero HIV and ART exposure on preterm delivery (PTD), low birth weight (LBW), small for gestational age (SGA), and underweight for age (UFA) at 6 weeks. METHODS: We surveyed 6179 HIV-unexposed-uninfected (HUU) and 2599 HIV-exposed-uninfected (HEU) infants...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29062060/role-of-hiv-exposure-and-infection-in-relation-to-neonatal-gbs-disease-and-rectovaginal-gbs-carriage-a-systematic-review-and-meta-analysis
#19
Piet Cools, Janneke H H M van de Wijgert, Vicky Jespers, Tania Crucitti, Eduard J Sanders, Hans Verstraelen, Mario Vaneechoutte
Streptococcus agalactiae (GBS) is the leading cause worldwide of neonatal sepsis. We sought to assess to which extent HIV exposure of neonates is associated with GBS neonatal disease. Furthermore, we assessed to which extent HIV infection in women is associated with maternal rectovaginal GBS carriage, the single most important risk factor for GBS neonatal disease. We searched Pubmed, Embase, and Web of Science for studies assessing the association between neonatal GBS disease and HIV-status of the mother and studies that assessed the association between rectovaginal GBS colonization and HIV status in women...
October 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29033797/white-matter-abnormalities-in-children-with-hiv-infection-and-exposure
#20
Marcin Jankiewicz, Martha J Holmes, Paul A Taylor, Mark F Cotton, Barbara Laughton, André J W van der Kouwe, Ernesta M Meintjes
Background: Due to changes in guidelines and access to treatment, more children start combination antiretroviral therapy (ART) in infancy. With few studies examining the long-term effects of perinatal HIV infection and early ART on neurodevelopment, much is still unknown about brain maturation in the presence of HIV and ART. Follow-up studies of HIV infected (HIV+) children are important for monitoring brain development in the presence of HIV infection and ART. Methods: We use diffusion tensor imaging (DTI) to examine white matter (WM) in 65 HIV+ and 46 control (HIV exposed uninfected (HEU) and HIV unexposed uninfected (HU)) 7-year-old children...
2017: Frontiers in Neuroanatomy
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