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https://www.readbyqxmd.com/read/28081048/a-prospective-cohort-study-of-common-childhood-infections-in-south-african-hiv-exposed-uninfected-and-hiv-unexposed-infants
#1
Amy L Slogrove, Monika M Esser, Mark F Cotton, David P Speert, Tobias R Kollmann, Joel Singer, Julie A Bettinger
BACKGROUND: Much evidence of HIV-exposed uninfected (HEU) infant infectious morbidity predates availability of maternal combination antiretroviral therapy and does not control for universal risk factors (preterm birth, low birth weight, suboptimal breastfeeding and poverty). METHODS: This prospective cohort study identified HIV-infected and HIV-uninfected mothers and their newborns from South African community midwife unit. The primary outcome, infectious cause hospitalization or death before 6 months of age, was compared between HEU and HIV-unexposed (HU) infants and classified for type and severity using validated study-specific case definitions...
February 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28079828/vaccination-with-10-valent-pneumococcal-conjugate-vaccine-in-infants-according-to-hiv-status
#2
Shabir A Madhi, Anthonet Koen, Lisa Jose, Nadia van Niekerk, Peter V Adrian, Clare Cutland, Nancy François, Javier Ruiz-Guiñazú, Juan-Pablo Yarzabal, Marta Moreira, Dorota Borys, Lode Schuerman
BACKGROUND: Phase III, open-label, single-center, controlled study in South Africa (ClinicalTrials.gov: NCT00829010) to evaluate immunogenicity, reactogenicity, and safety of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) in human immunodeficiency virus (HIV)-infected (HIV+), HIV-exposed-uninfected (HEU), and HIV-unexposed-uninfected (HUU) children. METHODS: Children stratified by HIV status received PHiD-CV primary vaccination (age 6/10/14 weeks; coadministered with routine childhood vaccines) and booster dose (age 9-10 months)...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28077589/trimethoprim-sulfamethoxazole-prophylaxis-during-live-malaria-sporozoite-immunization-induces-long-lived-homologous-and-heterologous-protective-immunity-against-sporozoite-challenge
#3
Charlotte V Hobbs, Charles Anderson, Jillian Neal, Tejram Sahu, Solomon Conteh, Tatiana Voza, Jean Langhorne, William Borkowsky, Patrick E Duffy
Trimethoprim-sulfamethoxazole (TMP-SMX) is widely used in malaria-endemic areas in human immunodeficiency virus (HIV)-infected children and HIV-uninfected, HIV-exposed children as opportunistic infection prophylaxis. Despite the known effects that TMP-SMX has in reducing clinical malaria, its impact on development of malaria-specific immunity in these children remains poorly understood. Using rodent malaria models, we previously showed that TMP-SMX, at prophylactic doses, can arrest liver stage development of malaria parasites and speculated that TMP-SMX prophylaxis during repeated malaria exposures would induce protective long-lived sterile immunity targeting pre-erythrocytic stage parasites in mice...
January 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28060016/excess-respiratory-viral-infections-and-low-antibody-responses-among-hiv-exposed-uninfected-infants
#4
Adriana Weinberg, Marisa M Mussi-Pinhata, Qilu Yu, Rachel A Cohen, Volia C Almeida, Fabiana Amaral, Jorge Pinto, Maria L B Teixeira, Regina C M Succi, Laura Freimanis, Jennifer S Read, George Siberry
OBJECTIVE: HIV-exposed uninfected infants (HEUs) have frequent severe infection, hospitalization and death. We performed a serologic investigation to determine the role of common childhood respiratory pathogens in the excess incidence of infections in HEUs. DESIGN: Prospective cohort study of mother-infant pairs. METHODS: Among 247 HEUs and 88 HIV-unexposed uninfected (HUU) infant-mother pairs, we measured maternal antibodies to respiratory syncytial virus (RSV) and pneumococcus (PNC 1, 5, 6B, 14); infant antibodies to RSV, influenza A (Flu), parainfluenza viruses (PIV 1, 2, 3), and PNC 1, 5, 6B and 14 were measured at 0 and 6 months, and anti-tetanus antibodies at 6 months...
January 4, 2017: AIDS
https://www.readbyqxmd.com/read/28011912/cmv-acquisition-and-inflammation-in-hiv-exposed-uninfected-zimbabwean-infants
#5
Ceri Evans, Bernard Chasekwa, Sandra Rukobo, Margaret Govha, Kuda Mutasa, Robert Ntozini, Jean H Humphrey, Andrew J Prendergast
Cytomegalovirus acquisition and inflammation were evaluated in 231 HIV-exposed uninfected (HEU) and 100 HIV-unexposed Zimbabwean infants at age 6 weeks. HEU and HIV-unexposed infants had a similarly high prevalence of CMV (81.4% vs. 74.0%, respectively; P=0.14), but HEU infants had higher CMV viral loads (P=0.005) and >2-fold higher CRP concentrations (P<0.0001). CMV-positive HEU infants had higher CRP than CMV-negative HEU infants; this association disappeared after adjusting for maternal HIV viral load...
December 23, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28002088/prioritizing-health-outcomes-of-hiv-exposed-uninfected-children-in-low-and-middle-income-countries-response-to-powis-et-al
#6
Alana T Brennan, Rachael Bonawitz, Christopher J Gill, Donald M Thea, Lawrence Long, Matthew P Fox
No abstract text is available yet for this article.
January 14, 2017: AIDS
https://www.readbyqxmd.com/read/27999576/optimizing-research-methods-to-understand-hiv-exposed-uninfected-infant-and-child-morbidity-report-of-the-second-heu-infant-and-child-workshop
#7
Amy L Slogrove, Moherndran Archary, Mark F Cotton
No abstract text is available yet for this article.
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27960171/are-basophils-and-mast-cells-masters-in-hiv-infection
#8
Gianni Marone, Gilda Varricchi, Stefania Loffredo, Maria Rosaria Galdiero, Felice Rivellese, Amato de Paulis
The World Health Organization AIDS epidemic update estimates that more than 37 million people are living with HIV infection. Despite the unprecedented success of antiretroviral treatments, significant challenges remain in the fight against HIV. In particular, how uninfected cells capture HIV and transmit virions to target cells remains an unanswered question. Tissue mast cells and peripheral blood basophils can be exposed to virions or HIV products during infection. Several HIV proteins (i.e., envelope glycoproteins gp120 and gp41, Tat, and Nef) can interact with distinct surface receptors expressed by human basophils and mast cells and modulate their functional responses at different levels...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27932617/reduced-trans-placental-transfer-of-group-b-streptococcus-surface-protein-antibodies-in-hiv-infected-mother-newborn-dyads
#9
Sonwabile Dzanibe, Peter V Adrian, Sheila Z Kimaro Mlacha, Ziyaad Dangor, Gaurav Kwatra, Shabir A Madhi
We evaluated the effect of maternal HIV infection on trans-placental antibody transfer specific to eight group B Streptococcus (GBS) surface protein among 81 HIV-uninfected and 83 HIV-infected mother-newborn pairs using a multiplex immunoassay. Significantly lower antibody titres were detected in HIV-infected mothers and HIV-exposed uninfected newborns compared to HIV-uninfected mother-newborn dyads. Maternal HIV infection was also associated with reduced trans-placental transfer of antibodies for Sip (25.8%), Foldase (30...
December 8, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27899925/increased-risk-of-group-b-streptococcus-invasive-infection-in-hiv-exposed-but-uninfected-infants-a-review-of-the-evidence-and-possible-mechanisms
#10
REVIEW
Nicolas Dauby, Mustapha Chamekh, Pierrette Melin, Amy L Slogrove, Tessa Goetghebuer
Group B Streptococcus (GBS) is a major cause of neonatal sepsis and mortality worldwide. Studies from both developed and developing countries have shown that HIV-exposed but uninfected (HEU) infants are at increased risk of infectious morbidity, as compared to HIV-unexposed uninfected infants (HUU). A higher susceptibility to GBS infections has been reported in HEU infants, particularly late-onset diseases and more severe manifestations of GBS diseases. We review here the possible explanations for increased susceptibility to GBS infection...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27898591/tenofovir-exposure-in-utero-and-linear-growth-in-hiv-exposed-uninfected-infants
#11
Stanzi M le Roux, Jennifer Jao, Kirsty Brittain, Tamsin K Phillips, Seun Olatunbosun, Agnes Ronan, Allison Zerbe, Elaine J Abrams, Landon Myer
OBJECTIVE: Tenofovir (TDF) affects bone health and is widely used in pregnancy but data are limited on the effects of TDF exposure in utero. We examined the association between duration of in-utero TDF exposure and linear growth in HIV-exposed, uninfected (HEU) infants. DESIGN: A prospective cohort of pregnant women initiating TDF-containing regimens at primary care services in Cape Town, South Africa, were enrolled and followed with their breastfeeding infants through 12 months postpartum...
January 2, 2017: AIDS
https://www.readbyqxmd.com/read/27885560/expression-of-human-endogenous-retrovirus-k-and-w-in-babies
#12
L H S Nali, A C S Oliveira, D O Alves, G S Caleiro, C F Nunes, D Gerhardt, R C M Succi, Camila M Romano, D M Machado
Here we determined the relative expression of HERV-K and W proviruses in HIV infected and non-infected mothers as well as their respective babies up to 1 year-old. HIV-infected mothers, their babies and uninfected control groups presented expression of both HERV-K and HERV-W with relatively high frequency. While the level of HERV-K expression was similar among groups, the level of HERV-W expression in HIV-infected mothers was four-fold higher than the uninfected mothers from the control group (p < 0.01)...
November 24, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27861788/phenotypically-resembling-myeloid-derived-suppressor-cells-are-increased-in-children-with-hiv-and-exposed-infected-with-mycobacterium-tuberculosis
#13
Nelita Du Plessis, Ruschca Jacobs, Andrea Gutschmidt, Zhuo Fang, Paul D van Helden, Manfred B Lutz, Anneke C Hesseling, Gerhard Walzl
Increased disease susceptibility during early life has been linked to immune immaturity, regulatory T-cell/TH2 immune biasing and hyporesponsiveness. The contribution of myeloid derived suppressor cells (MDSCs) remains uninvestigated. Here, we assessed peripheral MDSC in HIV-infected and -uninfected children with tuberculosis (TB) disease before, during and after TB treatment, along with matched household contacts (HHCs), HIV-exposed, -infected and -uninfected children without recent TB exposure. Serum analytes and enzymes associated with MDSC accumulation/activation/function were measured by colorimetric- and fluorescence arrays...
January 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/27856674/longitudinal-evaluation-of-language-impairment-in-youth-with-perinatally-acquired-human-immunodeficiency-virus-hiv-and-youth-with-perinatal-hiv-exposure
#14
Sean M Redmond, Tzy-Jyun Yao, Jonathan S Russell, Mabel L Rice, Howard J Hoffman, George K Siberry, Toni Frederick, Murli Purswani, Paige L Williams
BACKGROUND: Language impairment (LI) risk is increased for perinatally acquired human immunodeficiency virus-infected (PHIV) and perinatally exposed to HIV but uninfected (PHEU) youth. This study evaluates the persistence of LI in these groups. METHODS: The Clinical Evaluation of Language Fundamentals was repeated on participants of the Pediatric HIV/AIDS Cohort Study Adolescent Master Protocol 18 months postbaseline. Regression models identified factors associated with change in standardized score (SC) and the resolution or development of LI...
December 2016: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/27856673/associations-of-memory-and-executive-functioning-with-academic-and-adaptive-functioning-among-youth-with-perinatal-hiv-exposure-and-or-infection
#15
Patricia A Sirois, Miriam C Chernoff, Kathleen M Malee, Patricia A Garvie, Lynnette L Harris, Paige L Williams, Steven P Woods, Molly L Nozyce, Betsy L Kammerer, Cenk Yildirim, Sharon L Nichols
BACKGROUND: Perinatally acquired HIV (PHIV) confers risk for neurocognitive impairment, which potentially affects school performance and functional independence of infected children. In this study, we examined the associations of 2 key neurocognitive domains, memory and executive function (EF), with academic and adaptive skills among youth with PHIV and perinatally HIV-exposed but uninfected (PHEU) youth. METHODS: Participants ages 9 to <19 years enrolled in the Pediatric HIV/AIDS Cohort Study's Memory and Executive Functioning Study completed standardized measures of reading and math...
December 2016: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/27856672/executive-functioning-in-children-and-adolescents-with-perinatal-hiv-infection-and-perinatal-hiv-exposure
#16
Sharon L Nichols, Miriam C Chernoff, Kathleen M Malee, Patricia A Sirois, Steven P Woods, Paige L Williams, Cenk Yildirim, Dean Delis, Betsy Kammerer
BACKGROUND: Executive functions (EFs) are critical for management of life activities, but few studies have evaluated EFs in children and adolescents with perinatally acquired HIV (PHIV), who are at risk for problems in academics, behavior, and medication adherence. We compared EFs in youth with PHIV and in perinatally HIV-exposed but uninfected (PHEU) youth. METHODS: Four Delis-Kaplan Executive Function System (D-KEFS) subtests were administered to 173 youth with PHIV and 85 PHEU youth, aged 9 to <19 years, who were enrolled in the Pediatric HIV/AIDS Cohort Study (PHACS) Memory and Executive Functioning Study...
December 2016: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/27847176/association-of-serum-bactericidal-antibody-and-opsonic-antibody-levels-after-neisseria-meningitidis-serogroup-c-conjugate-vaccine-in-brazilian-children-and-adolescents-infected-or-not-infected-with-hiv
#17
Wânia F Pereira-Manfro, Raquel M Alvino, Aline C Cruz, Giselle P Silva, Raquel B N Castro, Bianca Ferreira, Daniella M Barreto, Ana Cristina C Frota, Cristina B Hofer, Lucimar G Milagres
Neisseria meningitidis serogroup C (MenC) is the main causative agent of meningitis in Brazil. HIV infection affects the quality of the immune system. HIV(+) children have an increased risk of infection to encapsulated bacteria such as N. meningitidis. We evaluated the opsonic antibody (OPA) levels and its correlation with serum bactericidal antibody (SBA) levels induced by one and two doses of a MenC conjugate vaccine in children and adolescents HIV(+) and HIV-exposed but uninfected children (HEU) group. Overall the data show the importance of two doses of vaccine for HIV(+) individuals...
December 7, 2016: Vaccine
https://www.readbyqxmd.com/read/27831952/tenofovir-disoproxil-fumarate-safety-for-women-and-their-infants-during-pregnancy-and-breastfeeding
#18
Lynne M Mofenson, Rachel C Baggaley, Ioannis Mameletzis
OBJECTIVES: Pregnant/lactating women in some sub-Saharan Africa settings are at substantial risk of HIV acquisition and could benefit from preexposure prophylaxis (PrEP) with tenofovir disoproxil fumarate (TDF), but safety data in pregnancy/lactation are limited. DESIGN: Systematic data review through August 2016. METHODS: We reviewed research reports/conference abstracts with maternal/child adverse outcome data in HIV-infected and HIV-uninfected pregnant/lactating women receiving TDF alone or in combination with other drugs compared with non-TDF regimens...
January 14, 2017: AIDS
https://www.readbyqxmd.com/read/27829511/high-burden-of-morbidity-and-mortality-but-not-growth-failure-in-infants-exposed-to-but-uninfected-with-human-immunodeficiency-virus-in-tanzania
#19
Lindsey M Locks, Karim P Manji, Roland Kupka, Enju Liu, Rodrick Kisenge, Christine M McDonald, Said Aboud, Molin Wang, Wafaie W Fawzi, Christopher P Duggan
OBJECTIVE: To compare health and growth outcomes in children infected with HIV, children exposed to but uninfected with HIV, and children unexposed to HIV. STUDY DESIGN: Our cohort included 3554 Tanzanian children enrolled in 2 trials of micronutrient supplementation. Among infants born to mothers infected with HIV, 264 were infected with HIV and 2088 were exposed to but uninfected at 6 weeks of age. An additional 1202 infants were unexposed to HIV. Infants were followed until 18 months of age, death, or loss to follow-up...
January 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/27812086/tuberculosis-disease-during-pregnancy-and-treatment-outcomes-in-hiv-infected-and-uninfected-women-at-a-referral-hospital-in-cape-town
#20
Adrie Bekker, Hendrik S Schaaf, Heather R Draper, Magdalena Kriel, Anneke C Hesseling
BACKGROUND: Tuberculosis during pregnancy and treatment outcomes are poorly defined in high prevalence tuberculosis and HIV settings. METHODS: A prospective cohort study of pregnant and postpartum women identified to be routinely on antituberculosis treatment was conducted at Tygerberg Hospital, Cape Town, South Africa, from January 2011 through December 2011. Maternal tuberculosis disease spectrum and tuberculosis-exposed newborns were characterized by maternal HIV status...
2016: PloS One
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