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https://www.readbyqxmd.com/read/29771780/biomarkers-of-aging-in-hiv-infected-children-on-suppressive-antiretroviral-therapy
#1
Stephanie Shiau, Renate Strehlau, Jing Shen, Avy Violari, Faeezah Patel, Afaaf Liberty, Marc Foca, Shuang Wang, Mary Beth Terry, Michael T Yin, Ashraf Coovadia, Elaine J Abrams, Stephen M Arpadi, Louise Kuhn
BACKGROUND: Data on accelerated aging in HIV-infected children are limited. In this study we assess two biomarkers of aging - telomere length and DNA methylation (DNAm) age - in a cohort of early-treated HIV-infected children and compare these aging biomarkers to HIV-exposed uninfected (HEU) and HIV-unexposed uninfected (HUU) children. SETTING: Cross-sectional study of 120 HIV-infected, 33 HEU, and 25 HUU children enrolled in a cohort study in Johannesburg, South Africa...
April 27, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29762690/intestinal-integrity-biomarkers-in-early-antiretroviral-treated-perinatally-hiv-1-infected-infants
#2
Wei Li A Koay, Jane C Lindsey, Priyanka Uprety, Mutsa Bwakura-Dangarembizi, Adriana Weinberg, Myron J Levin, Deborah Persaud
Biomarkers of intestinal integrity (intestinal fatty acid binding protein (iFABP) and zonulin), were compared in early antiretroviral-treated, HIV-1-infected (HIV+; n=56) African infants and HIV-exposed but uninfected (HEU; n=53) controls. Despite heightened inflammation and immune activation in HIV+ infants, iFABP and zonulin levels at three months of age were not different from those in HEU infants, and largely not correlated with inflammatory and immune activation biomarkers. However, zonulin levels increased, and became significantly higher in HIV+ compared to HEU infants by five months of age despite ART-suppression...
May 12, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29750766/infectious-morbidity-mortality-and-nutrition-in-hiv-exposed-uninfected-formula-fed-infants-results-from-the-hptn-040-pactg-1043-trial
#3
Nava Yeganeh, D Heather Watts, Jiahong Xu, Tara Kerin, Esau C Joao, Jose Henrique Pilotto, Gerhard Theron, Glenda Gray, Breno Santos, Rosana Fonseca, Regis Kreitchmann, Jorge Pinto, Marisa M Mussi-Pinhata, Valdilea Veloso, Margaret Camarca, Lynne Mofenson, Jack Moye, Karin Nielsen-Saines
BACKGROUND: HIV exposed uninfected (HEU) infants are a growing population with potentially poor health outcomes. We evaluated morbidity and mortality in HEU formula-fed infants enrolled in the NICHD HPTN 040/PACTG 1043 trial. METHODS: Infectious morbidity, mortality, and undernutrition were evaluated within a cohort of 1,000 HEU infants enrolled between 4/2004 and 4/2010 in Brazil (N=766) and South Africa (N=234) as part of the NICHD/HPTN 040 trial of three different antiretroviral regimens to decrease intrapartum HIV vertical transmission...
May 10, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29746376/neruodevelopmental-outcomes-in-pre-school-children-living-with-hiv-1-subtypes-a-and-d-in-uganda
#4
Horacio Ruiseñor-Escudero, Alla Sikorskii, Itziar Familiar-Lopez, Deborah Persaud, Carrie Ziemniak, Noeline Nakasujja, Robert Opoka, Michael Boivin
BACKGROUND: HIV is a neuropathogenic virus that may result in detrimental neurodevelopmental (ND) outcomes early in life. This is the first study to evaluate the effect of HIV-1 subtype on neurodevelopment of Ugandan pre-school children. METHODS: Neurodevelopment of 87 HIV-1 infected and 221 HIV exposed uninfected (HEU) Ugandan children aged 1.8 to 4.9 years was assessed using four scales of the Mullen Scales of Early Learning (MSEL), two scales of the Color Object Association Test (COAT), and one score of the Early Childhood Vigilance Test (ECVT)...
May 9, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29738917/analysis-and-comparison-of-focused-ion-beam-milling-and-vibratory-polishing-sample-surface-preparation-methods-for-porosity-study-of-u-mo-plate-fuel-for-research-and-test-reactors
#5
Bjorn Westman, Brandon Miller, Jan-Fong Jue, Assel Aitkaliyeva, Dennis Keiser, James Madden, Julie D Tucker
Uranium-Molybdenum (U-Mo) low enriched uranium (LEU) fuels are a promising candidate for the replacement of high enriched uranium (HEU) fuels currently in use in a high power research and test reactors around the world. Contemporary U-Mo fuel sample preparation uses focused ion beam (FIB) methods for analysis of fission gas porosity. However, FIB possess several drawbacks, including reduced area of analysis, curtaining effects, and increased FIB operation time and cost. Vibratory polishing is a well understood method for preparing large sample surfaces with very high surface quality...
May 2, 2018: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/29722482/five-year-neurodevelopment-outcomes-of-perinatally-hiv-infected-children-on-early-limited-or-deferred-continuous-antiretroviral-therapy
#6
Barbara Laughton, Morna Cornell, Martin Kidd, Priscilla Estelle Springer, Els Françoise Marie-Thérèse Dobbels, Anita Janse Van Rensburg, Kennedy Otwombe, Abdel Babiker, Diana M Gibb, Avy Violari, Mariana Kruger, Mark Fredric Cotton
INTRODUCTION: Early antiretroviral therapy (ART) has improved neurodevelopmental outcomes of HIV-infected (HIV-positive) children; however, little is known about the longer term outcomes in infants commencing early ART or whether temporary ART interruption might have long-term consequences. In the children with HIV early antiretroviral treatment (CHER) trial, HIV-infected infants ≤12 weeks of age with CD4 ≥25% were randomized to deferred ART (ART-Def); immediate time-limited ART for 40 weeks (ART-40W) or 96 weeks (ART-96W)...
May 2018: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/29663621/neurodevelopmental-outcomes-of-young-children-born-to-hiv-positive-mothers-in-rural-yunnan-china
#7
Jie Wu, Jing Li, Yan Li, Kek Khee Loo, Haixia Yang, Qiong Wang, Rufei Duan, Xia Xiao, Xiaoxiao Song, Siwei Yang, Lin Sun
BACKGROUND: Children born to HIV-infected mothers are at risk for neurodevelopmental delay. Little is known about neurodevelopmental outcomes of infants and toddlers who were born to HIV-positive mothers but were not themselves infected by HIV, especially in poor rural areas. This study was conducted to compare developmental outcomes between young children who were HIV-exposed but uninfected (HEU) and their HIV-unexposed and uninfected (HUU) peers in rural Yunnan, China. METHODS: A total of 250 HEU children aged 6-36 months and 250 HUU children matched on age, gender and residency were recruited from rural Yunnan, China...
April 16, 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29625591/neurodevelopmental-assessment-of-hiv-exposed-uninfected-and-early-treated-hiv-infected-children-study-protocol
#8
Renate Strehlau, Tamryn van Aswegen, Joanne Potterton
OBJECTIVE: Sub-Saharan Africa has the highest prevalence of children at risk of not achieving their developmental potential, attributable largely to the human immunodeficiency virus (HIV) pandemic coupled with negative environmental factors. Childhood developmental stimulation programmes can mitigate adverse outcomes. METHODS: Neonates testing HIV positive at birth will be initiated on antiretroviral treatment (ART) and receive an age-appropriate stimulation program, updated at 3 monthly intervals through the first year of life...
April 6, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29547434/in-utero-exposure-to-antiretrovirals-and-neurodevelopment-among-hiv-exposed-uninfected-children-in-botswana
#9
Sumona Chaudhury, Gloria K Mayondi, Paige L Williams, Jean Leidner, Roger Shapiro, Modiegi Diseko, Gbolahan Ajibola, Penny Holding, Vicki Tepper, Joseph Makhema, Chipo Petlo, George R Seage, Shahin Lockman, Betsy Kammerer
OBJECTIVE: Conflicting data exist regarding the impact of in utero exposure to maternal combination antiretrovirals. We compared neurodevelopmental outcomes between HIV-exposed/uninfected (HEU) children exposed in utero to 3-drug combination antiretroviral therapy (ART) versus zidovudine (ZDV) monotherapy. DESIGN: Prospective study of child neurodevelopment, nested within two cohorts of HIV-infected mothers and their children in Botswana (one observational, one interventional)...
March 15, 2018: AIDS
https://www.readbyqxmd.com/read/29529806/optical-performance-of-large-area-crystalline-coatings
#10
Manuel Marchiò, Raffaele Flaminio, Laurent Pinard, Daniéle Forest, Christoph Deutsch, Paula Heu, David Follman, Garrett D Cole
Given their excellent optical and mechanical properties, substrate-transferred crystalline coatings are an exciting alternative to amorphous multilayers for applications in precision interferometry. The high mechanical quality factor of these single-crystal interference coatings reduces the limiting thermal noise in precision optical instruments such as reference cavities for narrow-linewidth laser systems and interferometric gravitational wave detectors. In this manuscript, we explore the optical performance of GaAs/AlGaAs crystalline coatings transferred to 50...
March 5, 2018: Optics Express
https://www.readbyqxmd.com/read/29505479/pneumonia-in-hiv-exposed-and-infected-children-and-association-with-malnutrition
#11
Pui-Ying Iroh Tam, Matthew O Wiens, Jerome Kabakyenga, Julius Kiwanuka, Elias Kumbakumba, Peter P Moschovis
We evaluated the association between HIV exposed-uninfected (HEU) status, malnutrition, and risk of death in Ugandan children hospitalized with pneumonia. Both HIV exposure and infection were associated with lower anthropometric indices on univariate analysis, and mid-upper arm circumference was significantly associated with overall mortality (OR 0.96) in a multivariable model. HIV infection (OR 5.0) but not HEU status was associated with overall mortality. Malnutrition may contribute to poor pneumonia outcomes among HIV-infected and HEU children requiring hospitalization...
March 2, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29491865/altered-toll-like-receptor-4-response-to-lipopolysaccharides-in-infants-exposed-to-hiv-1-and-its-preventive-therapy
#12
Anicet Christel Maloupazoa Siawaya, Ofilia Mvoundza Ndjindji, Eliane Kuissi Kamgaing, Amandine Mveang-Nzoghe, Chérone Nancy Mbani Mpega, Marielle Leboueny, Roselyne Kengue Boussougou, Armel Mintsa Ndong, Paulin N Essone, Joel Fleury Djoba Siawaya
Pathogen sensing and recognition through pattern recognition receptors, and subsequent production of pro-inflammatory cytokines, is the cornerstone of the innate immune system. Despite the fact that HIV-exposed uninfected (HEU) infants are prone to serious bacterial infections, no study has focused on the functionality of their bacteria recognition system. This is the first study to investigate baseline levels of three critically important immune response molecules in this population: complement component (C)-3, toll-like receptor (TLR)-4, and C-reactive protein (CRP)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29462104/high-incidence-of-tuberculosis-infection-in-hiv-exposed-children-exiting-an-isoniazid-preventive-therapy-trial
#13
Lisa M Cranmer, Heather R Draper, Anna M Mandalakas, Soyeon Kim, George McSherry, Emma Krezinski, Joan Coetzee, Charles Mitchell, Sharon Nachman, Mercia van der Linde, Mark F Cotton, Anneke C Hesseling
Young HIV-exposed children are at high risk for TB infection. We performed QuantiFERON®-TB Gold (QFT) among HIV-exposed children in South Africa at enrolment and one year follow-up. The incidence of TB infection was high for HIV+ (11 cases/100 child-years) and HIV-exposed uninfected (HEU) children (15 cases/100 child-years). QFT may identify HIV-exposed children at risk for TB disease progression.
February 16, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29439467/blood-mitochondrial-dna-content-in-hiv-exposed-uninfected-children-with-autism-spectrum-disorder
#14
Matthew A Budd, Kristina Calli, Lindy Samson, Jennifer Bowes, Anthony Y Y Hsieh, John C Forbes, Ari Bitnun, Joel Singer, Fatima Kakkar, Ariane Alimenti, Evelyn J Maan, M E Suzanne Lewis, Carole Gentile, Hélène C F Côté, Jason C Brophy
Long-term outcomes of perinatal exposure to maternal antiretroviral therapy in HIV-exposed uninfected (HEU) children are unknown. However, both HIV antiretroviral therapy and autism spectrum disorder (ASD) have been associated with mitochondrial alterations. Leukocyte mitochondrial DNA (mtDNA) content can serve as a marker for mitochondrial dysfunction. In this cross-sectional, nested case-control study, HEU children with ASD were matched approximately 1:3 on age, sex, and ethnicity to HEU children without ASD, HIV-unexposed uninfected (HUU) controls, and HUU children with ASD...
February 11, 2018: Viruses
https://www.readbyqxmd.com/read/29374109/neurodevelopment-in-young-children-born-to-hiv-infected-mothers-a-meta-analysis
#15
REVIEW
Megan S McHenry, Carole I McAteer, Eren Oyungu, Brenna C McDonald, Chris B Bosma, Philani B Mpofu, Andrew R Deathe, Rachel C Vreeman
CONTEXT: HIV-infected (HIV+) children have worse neurodevelopmental outcomes compared with HIV-uninfected children. However, little is known regarding the differences in neurodevelopment between young HIV+ children, HIV-exposed but uninfected (HEU) children, and HIV-unexposed and uninfected (HUU) children. OBJECTIVE: To systematically review and meta-analyze data on neurodevelopmental performance between young HIV+, HEU, and HUU children. DATA SOURCES: We systematically searched the following electronic bibliographic databases: Ovid Medline, Embase, PsycINFO, Education Resources Information Center, and the Cochrane Database of Systematic Reviews...
February 2018: Pediatrics
https://www.readbyqxmd.com/read/29367028/new-approach-for-determination-of-the-influence-of-long-range-order-and-selected-ring-oscillations-on-ir-spectra-in-zeolites
#16
Andrzej Mikuła, Magdalena Król, Włodzimierz Mozgawa, Andrzej Koleżyński
Vibrational spectroscopy can be considered as one of the most important methods used for structural characterization of various porous aluminosilicate materials, including zeolites. On the other hand, vibrational spectra of zeolites are still difficult to interpret, particularly in the pseudolattice region, where bands related to ring oscillations can be observed. Using combination of theoretical and computational approach, a detailed analysis of these regions of spectra is possible; such analysis should be, however, carried out employing models with different level of complexity and simultaneously the same theory level...
April 15, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29351561/preconception-use-of-cart-by-hiv-positive-pregnant-women-increases-the-risk-of-infants-being-born-small-for-gestational-age
#17
Ingrid J M Snijdewind, Colette Smit, Mieke H Godfried, Rachel Bakker, Jeannine F J B Nellen, Vincent W V Jaddoe, Elisabeth van Leeuwen, Peter Reiss, Eric A P Steegers, Marchina E van der Ende
BACKGROUND: The benefits of combination anti-retroviral therapy (cART) in HIV-positive pregnant women (improved maternal health and prevention of mother to child transmission [pMTCT]) currently outweigh the adverse effects due to cART. As the variety of cART increases, however, the question arises as to which type of cART is safest for pregnant women and women of childbearing age. We studied the effect of timing and exposure to different classes of cART on adverse birth outcomes in a large HIV cohort in the Netherlands...
2018: PloS One
https://www.readbyqxmd.com/read/29278615/risk-for-speech-and-language-impairments-in-pre-school-aged-hiv-exposed-uninfected-children-with-in-utero-combination-antiretroviral-exposure
#18
Mabel L Rice, Jonathan S Russell, Toni Frederick, Murli Purswani, Paige L Williams, George K Siberry, Sean M Redmond, Howard J Hoffman, Tzy-Jyun Yao
BACKGROUND: Perinatally HIV-exposed but uninfected (HEU) children have elevated risk of late language emergence at age 1 year, with possible links to in utero antiretroviral (ARV) exposure. We investigated possible risks for speech impairments (SI) and language impairments (LI) in preschool monolingual HEU children in the United States. METHODS: Speech and language assessments were conducted as part of the PHACS Surveillance Monitoring of ART Toxicities (SMARTT) study at ages 3 (N= 208) and 5 (N = 429) years...
December 22, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29228317/leukocyte-telomere-length-at-birth-and-during-the-early-life-of-children-exposed-to-but-uninfected-with-hiv-after-in-utero-exposure-to-antiretrovirals
#19
Abhinav Ajaykumar, Hugo Soudeyns, Fatima Kakkar, Jason Brophy, Ari Bitnun, Ariane Alimenti, Arianne Y K Albert, Deborah M Money, Hélène C F Côté
Background: Maternal combination antiretroviral therapy (cART) during pregnancy could impact the health of human immunodeficiency virus (HIV)-exposed, HIV-uninfected (HEU) children, because some antiretrovirals cross the placenta and can inhibit telomerase. Our objective was to compare leukocyte telomere length (LTL) in HEU children and HIV-unexposed, HIV-uninfected (HUU) children at birth and in early life and to investigate any relationship with cART exposure. Methods: HEU and HUU children's blood LTL was compared cross-sectionally at birth, and during the first three years of life...
February 14, 2018: Journal of Infectious Diseases
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
#20
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
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