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Madzime J, Jankiewicz M, Meintjes EM, Torre P, Laughton B, van der Kouwe AJW, Holmes M. Reduced white matter maturation in the central auditory system of children living with HIV. FRONTIERS IN NEUROIMAGING 2024; 3:1341607. [PMID: 38510428 PMCID: PMC10951401 DOI: 10.3389/fnimg.2024.1341607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 02/15/2024] [Indexed: 03/22/2024]
Abstract
Introduction School-aged children experience crucial developmental changes in white matter (WM) in adolescence. The human immunodeficiency virus (HIV) affects neurodevelopment. Children living with perinatally acquired HIV (CPHIVs) demonstrate hearing and neurocognitive impairments when compared to their uninfected peers (CHUUs), but investigations into the central auditory system (CAS) WM integrity are lacking. The integration of the CAS and other brain areas is facilitated by WM fibers whose integrity may be affected in the presence of HIV, contributing to neurocognitive impairments. Methods We used diffusion tensor imaging (DTI) tractography to map the microstructural integrity of WM between CAS regions, including the lateral lemniscus and acoustic radiation, as well as between CAS regions and non-auditory regions of 11-year-old CPHIVs. We further employed a DTI-based graph theoretical framework to investigate the nodal strength and efficiency of the CAS and other brain regions in the structural brain network of the same population. Finally, we investigated associations between WM microstructural integrity outcomes and neurocognitive outcomes related to auditory and language processing. We hypothesized that compared to the CHUU group, the CPHIV group would have lower microstructural in the CAS and related regions. Results Our analyses showed higher mean diffusivity (MD), a marker of axonal maturation, in the lateral lemniscus and acoustic radiations, as well as WM between the CAS and non-auditory regions predominantly in frontotemporal areas. Most affected WM connections also showed higher axial and radial diffusivity (AD and RD, respectively). There were no differences in the nodal properties of the CAS regions between groups. The MD of frontotemporal and subcortical WM-connected CAS regions, including the inferior longitudinal fasciculus, inferior fronto-occipital fasciculus, and internal capsule showed negative associations with sequential processing in the CPHIV group but not in the CHUU group. Discussion The current results point to reduced axonal maturation in WM, marked by higher MD, AD, and RD, within and from the CAS. Furthermore, alterations in WM integrity were associated with sequential processing, a neurocognitive marker of auditory working memory. Our results provide insights into the microstructural integrity of the CAS and related WM in the presence of HIV and link these alterations to auditory working memory.
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Affiliation(s)
- Joanah Madzime
- Biomedical Engineering Research Centre, Division of Biomedical Engineering, Department of Human Biology, University of Cape Town, Cape Town, South Africa
- Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Marcin Jankiewicz
- Biomedical Engineering Research Centre, Division of Biomedical Engineering, Department of Human Biology, University of Cape Town, Cape Town, South Africa
- Cape Universities Body Imaging Centre, University of Cape Town, Cape Town, South Africa
| | - Ernesta M. Meintjes
- Biomedical Engineering Research Centre, Division of Biomedical Engineering, Department of Human Biology, University of Cape Town, Cape Town, South Africa
- Neuroscience Institute, University of Cape Town, Cape Town, South Africa
- Cape Universities Body Imaging Centre, University of Cape Town, Cape Town, South Africa
| | - Peter Torre
- School of Speech, Language, and Hearing Sciences, College of Health and Human Services, San Diego, CA, United States
| | - Barbara Laughton
- Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, Stellenbosch University, Stellenbosch, South Africa
| | - Andre J. W. van der Kouwe
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
| | - Martha Holmes
- Biomedical Engineering Research Centre, Division of Biomedical Engineering, Department of Human Biology, University of Cape Town, Cape Town, South Africa
- Neuroscience Institute, University of Cape Town, Cape Town, South Africa
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Chongwo EJ, Wedderburn CJ, Nyongesa MK, Sigilai A, Mwangi P, Thoya J, Odhiambo R, Ngombo K, Kabunda B, Newton CR, Abubakar A. Neurocognitive outcomes of children exposed to and living with HIV aged 3-5 years in Kilifi, Kenya. FRONTIERS IN REPRODUCTIVE HEALTH 2023; 5:1193183. [PMID: 37732169 PMCID: PMC10508958 DOI: 10.3389/frph.2023.1193183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/14/2023] [Indexed: 09/22/2023] Open
Abstract
Introduction Globally, 1.7 million children are living with HIV, with the majority of them residing in sub-Saharan Africa. Due to reduced rates of vertical transmission of HIV, there is an increasing population of children born to HIV-infected mothers who remain uninfected. There is a growing concern around the development of these children in the antiretroviral therapy era. This study examined the neurocognitive outcomes of children who are HIV-exposed infected (CHEI), HIV-exposed uninfected (CHEU) and HIV-unexposed uninfected (CHUU) and explored the relationship between child neurocognitive outcomes and child's biomedical and caregivers' psychosocial factors. Methods CHEI, CHUU and CHEU aged 3-5 years and their caregivers were recruited into the study. Neurocognitive outcomes were assessed using a validated battery of assessments. One-way analysis of variance and covariance (ANOVA and ANCOVA) were used to evaluate differences among the three groups by neurocognitive outcomes. Linear regression models were used to investigate the association between child neurocognitive outcomes and biomedical factors (nutritional status, HIV disease staging) and caregivers' psychosocial factors [symptoms of common mental disorders (CMDs) and parenting behaviour]. Results The study included 153 children and their caregivers: 43 (28.1%) CHEI, 52 (34.0%) CHEU and 58 (39.9%) CHUU. ANOVA and ANCOVA revealed a significant difference in cognitive ability mean scores across the child groups. Post hoc analysis indicated that CHEU children had higher cognitive ability mean scores than the CHUU group. Better nutritional status was significantly associated with higher cognitive ability scores (β = 0.68, 95% CI [0.18-1.18], p = 0.008). Higher scores of CMDs were negatively associated with inhibitory control (β = -0.28, 95% CI [-0.53 to 0.02], p = 0.036). While comparing HIV stages 2 and 3, large effect sizes were seen in working memory (0.96, CI [0.08-1.80]) and cognitive ability scores (0.83 CI [0.01-1.63]), indicating those in stage 3 had poor performance. Conclusions Neurocognitive outcomes were similar across CHEI, CHEU and CHUU, although subtle differences were seen in cognitive ability scores where CHEU had significantly higher cognitive mean scores than the CHUU. Well-designed longitudinal studies are needed to ascertain these findings. Nonetheless, study findings underscore the need for strategies to promote better child nutrition, mental health, and early antiretroviral therapy initiation.
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Affiliation(s)
| | - Catherine J. Wedderburn
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Department of Paediatrics and Child Health and Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | | | - Antipa Sigilai
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, Kenya
| | - Paul Mwangi
- Institute for Human Development, Aga Khan University, Nairobi, Kenya
| | - Janet Thoya
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, Kenya
| | - Rachel Odhiambo
- Institute for Human Development, Aga Khan University, Nairobi, Kenya
| | - Katana Ngombo
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, Kenya
| | - Beatrice Kabunda
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, Kenya
| | - Charles R. Newton
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, Kenya
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Amina Abubakar
- Institute for Human Development, Aga Khan University, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, Kenya
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
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Sirois PA, Huo Y, Nozyce ML, Garvie PA, Harris LL, Malee K, McEvoy R, Mellins CA, Nichols SL, Smith R, Tassiopoulos K. Ageing with HIV: a longitudinal study of markers of resilience in young adults with perinatal exposure to HIV, with or without perinatally acquired HIV. J Int AIDS Soc 2022; 25 Suppl 4:e25982. [PMID: 36176020 PMCID: PMC9522985 DOI: 10.1002/jia2.25982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 08/01/2022] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION Medical challenges, including perinatally acquired HIV (PHIV), can be considered adversity with the potential to compromise individuals' ability to meet societal expectations across the lifespan. Studies suggest that resilience, defined as positive adaptation in the context of adversity, helps individuals overcome challenges and improve their quality of life. Few longitudinal studies have examined resilience in young adults with perinatally acquired HIV (YAPHIV) or perinatal HIV exposure, uninfected (YAPHEU). We examined three young adult milestones, which can affect the life-long quality of life, as markers of resilience: high school graduation, postsecondary education and current employment. METHODS Analyses included YAPHIV and YAPHEU, ages 19-27 years, followed in longitudinal cohort studies: Pediatric HIV/AIDS Cohort Study Adolescent Master Protocol (AMP) (7-17 years) and AMP Up (≥18 years). Factors known to influence the attainment of milestones (outcomes) were examined: executive function, cognitive efficiency (working memory and processing speed), behavioural/social-emotional functioning, parent/caregiver mental/physical health and cumulative risk. HIV disease markers for YAPHIV were examined. The most recent AMP assessment was used for each factor; outcomes were measured at AMP Up 1-year follow-up. Separate robust Poisson regression models were used to assess associations of each factor with each outcome; PHIV status was explored as an effect modifier of each association. RESULTS Participants (N = 315; YAPHIV = 228): 58% female, 67% Black and 27% Hispanic. Compared to YAPHEU, YAPHIV were older and from families with higher median income and fewer symptoms of parent/caregiver mental health/substance use disorders. Proportions of YAPHIV and YAPHEU, respectively, who achieved each milestone were comparable: 82% versus 78% for high school graduation (p = 0.49), 45% versus 51% for postsecondary education (p = 0.35) and 48% versus 54% for current employment (p = 0.32). Higher cognitive efficiency was positively associated with postsecondary education and current employment. Higher executive function, age-appropriate behavioural/social-emotional functioning and lower cumulative risk were associated with academic milestones. Among YAPHIV, positive associations were: higher current CD4 with postsecondary education and lower nadir CD4 with current employment. PHIV status did not modify any association. CONCLUSIONS YAPHIV and YAPHEU demonstrated resilience, attaining at least one young adult milestone. Cognitive, behavioural and social resources to support resilience in childhood and adolescence may provide the foundation for continued achievement throughout adulthood.
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Affiliation(s)
- Patricia A. Sirois
- Department of PediatricsTulane University School of MedicineNew OrleansLouisianaUSA
| | - Yanling Huo
- Center for Biostatistics in AIDS ResearchHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
| | - Molly L. Nozyce
- Department of PediatricsJacobi Medical CenterAlbert Einstein College of MedicineBronxNew YorkUSA
| | - Patricia A. Garvie
- Research DepartmentChildren's Diagnostic & Treatment CenterFort LauderdaleFloridaUSA
| | | | - Kathleen Malee
- Departments of Infectious Diseases and Psychiatry and Behavioral ScienceNorthwestern University Feinberg School of MedicineChicagoIllinoisUSA
| | - Robin McEvoy
- Department of Pediatrics, Infectious DiseasesUniversity of Colorado School of MedicineChildren's Hospital ColoradoAuroraColoradoUSA
| | - Claude A. Mellins
- HIV Center for Clinical and Behavioral StudiesNew York State Psychiatric Instituteand Departments of Psychiatry and Sociomedical SciencesColumbia UniversityNew York CityNew YorkUSA
| | - Sharon L. Nichols
- Department of NeurosciencesUniversity of California, San DiegoLa JollaCaliforniaUSA
| | - Renee Smith
- Department of PediatricsUniversity of Illinois at ChicagoChicagoIllinoisUSA
| | - Katherine Tassiopoulos
- Department of EpidemiologyHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
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Jago S, Chirwa JM, Tan M, Thuma PE, Grigorenko EL. Cognitive and academic performance of rural Zambian youth exposed to HIV. AIDS Care 2022; 35:453-460. [PMID: 35509240 PMCID: PMC9633584 DOI: 10.1080/09540121.2022.2050175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Studies focusing on children affected by HIV have shown that they have generally lower academic performance, however, few studies separate children who are HIV exposed and infected (CHEI) and those who are HIV exposed but uninfected (CHEU). Importantly, in rural sub-Saharan Africa, the majority of studies on CHEI and CHEU examine academic performance indirectly based on cognitive test scores. Therefore, studies assessing the effects of HIV on academic achievement directly for CHEI and CHEU are needed. This article evaluates the effects of HIV-infection on cognitive and academic performance by comparing CHEI (n = 82) and CHEU (n = 1045) aged 7-17 years old using cross-sectional data from an ongoing longitudinal study in a rural area of Zambia. Youth completed cognitive and academic assessments; their height and weight were assessed to generate Body Mass Index (BMI). Caregiver questionnaires provided information on youths' years in school and household socio-economic status (SES). Results indicated that while HIV infection status did explain some of the variance in performance between CHEI and CHEU, age, BMI, years of schooling and SES accounted for additional variance. The effect of years of schooling on both cognitive and academic performance demonstrated that CHEI's performance may be greatly improved by consistent school enrollment.
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Affiliation(s)
| | | | - Mei Tan
- Texas Institute for Measurement, Evaluation, and Statistics (TIMES), University of Houston, TX, USA
| | | | - Elena L Grigorenko
- Texas Institute for Measurement, Evaluation, and Statistics (TIMES), University of Houston, TX, USA.,Department of Psychology, University of Houston, Houston, TX, USA.,Department of Psychology, Saint-Petersburg State University, Saint Petersburg, RF.,Center for Cognitive Sciences, Sirius University for Science and Technology, Sochi, RF.,Baylor College of Medicine, Houston, TX, USA.,Child Study Center and Haskins Laboratories, Yale University, New Haven, CT, USA.,Moscow State University for Psychology and Education, Moscow, RF
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Ezeamama AE, Zalwango SK, Sikorskii A, Tuke R, Musoke PM, Giordani B, Boivin MJ. In utero and peripartum antiretroviral exposure as predictor of cognition in 6- to 10-year-old HIV-exposed Ugandan children - a prospective cohort study. HIV Med 2021; 22:592-604. [PMID: 33860626 DOI: 10.1111/hiv.13094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 01/28/2021] [Accepted: 02/08/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To quantify association between in utero/peripartum antiretroviral (IPA) exposure and cognition, i.e. executive function (EF) and socioemotional adjustment (SEA), in school-aged Ugandan children who were perinatally HIV-infected (CPHIV, n = 100) and children who were HIV-exposed but uninfected (CHEU, n = 101). METHODS Children were enrolled at age 6-10 years and followed for 12 months from March 2017 to December 2018. Caregiver-reported child EF and SEA competencies were assessed using validated questionnaires at baseline, 6 and 12 months. IPA type - combination antiretroviral therapy (cART), intrapartum single-dose nevirapine ± zidovudine (sdNVP ± ZDV), nevirapine + zidovudine + lamivudine (sdNVP + ZDV + 3TC) - or no IPA (reference) was verified via medical records. IPA-related standardized mean differences (SMDs) with corresponding 95% confidence intervals (CIs) in cognitive competencies were estimated from regression models with adjustment for caregiver sociodemographic and contextual factors. Models were fitted separately for CPHIV and CHEU. RESULTS Among CPHIV children, cART (SMD = -0.82, 95% CI: -1.37 to -0.28) and sdNVP ± ZDV (SMD = -0.41, 95% CI: -0.81 to -0.00) vs. no IPA predicted lower executive dysfunction over 12 months. Intrapartum sdNVP + ZDV + 3TC vs. no IPA predicted executive dysfunction (SMD = 0.80, 95% CI: 0.30-1.31), SEA problems (SMD = 0.63-0.76, 95% CI: 0.00-1.24) and lower adaptive skills (SMD = -0.36, 95% CI: -0.75-0.02) over 12 months among CHEU. Further adjustment for contextual factors attenuated associations, although most remained of moderate clinical importance (|SMD| > 0.33). CONCLUSIONS Among CPHIV children, cART and sdNVP ± ZDV IPA exposure predicted, on average, lower executive dysfunction 6-10 years later. However, peripartum sdNVP + ZDV + 3TC predicted executive and SEA dysfunction among CHEU 6-10 years later. These data underscore the need for more research into long-term effects of in utero ART to inform development of appropriate interventions so as to mitigate cognitive sequelae.
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Affiliation(s)
- A E Ezeamama
- Department of Psychiatry, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
| | - S K Zalwango
- Directorate of Public Health and Environment, Kampala Capital City Authority, Kampala, Uganda
| | - A Sikorskii
- Department of Psychiatry, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
| | - R Tuke
- Department of Psychiatry, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
| | - P M Musoke
- Department of Paediatrics and Child Health, School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda.,Makerere University-Johns Hopkins University Research Collaboration, Kampala, Uganda
| | - B Giordani
- Departments of Psychiatry, Neurology, and Psychology, University of Michigan, Ann Arbor, MI, USA
| | - M J Boivin
- Departments of Psychiatry and Neurology & Ophthamology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA.,Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
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Walsh H, Zuwala J, Hunter J, Oh Y. Congenital Cytomegalovirus and Human Immunodeficiency Virus: Effects on Hearing, Speech and Language Development, and Clinical Outcomes in Children. Front Pediatr 2021; 9:771192. [PMID: 34976894 PMCID: PMC8716614 DOI: 10.3389/fped.2021.771192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/25/2021] [Indexed: 11/24/2022] Open
Abstract
Prenatal infections can have adverse effects on an infant's hearing, speech, and language development. Congenital cytomegalovirus (CMV) and human immunodeficiency virus (HIV) are two such infections that may lead to these complications, especially when left untreated. CMV is commonly associated with sensorineural hearing loss in children, and it can also be associated with anatomical abnormalities in the central nervous system responsible for speech, language, and intellectual acquisition. In terms of speech, language, and hearing, HIV is most associated with conductive and/or sensorineural hearing loss and expressive language deficits. Children born with these infections may benefit from cochlear implantation for severe to profound sensorineural hearing losses and/or speech therapy for speech/language deficits. CMV and HIV simultaneously present in infants has not been thoroughly studied, but one may hypothesize these speech, language, and hearing deficits to be present with potentially higher severity. Early identification of the infection in combination with early intervention strategies yields better results for these children than no identification or intervention. The purpose of this review was to investigate how congenital CMV and/or HIV may affect hearing, speech, and language development in children, and the importance of early identification for these populations.
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Affiliation(s)
- Hannah Walsh
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, United States
| | - Jillian Zuwala
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, United States
| | - Jessica Hunter
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, United States
| | - Yonghee Oh
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville, FL, United States
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Abstract
PurposeThis clinical focus article addresses a current debate contrasting the long-standing label of “specific language impairment” (SLI) with a recent alternative, “developmental language disorders” (DLDs); the criteria for SLI yields a subset of children defined as DLD. Recent social media advocacy for DLD asserts that the two categories of children are clinically equivalent, and therefore, DLD can be used as a label for which SLI criteria would hold. Coupled with DLD advocacy is the assumption that research on SLI has not yielded clinically relevant outcomes. This clinical focus article challenges those assumptions. The clinical focus article is framed as parallels between precision medicine and evidence-based practice. The purposes of this clinical focus article are as follows: (a) revisit the legacy of research on SLI; (b) describe language development in children with SLI into adulthood; (c) address widespread but erroneous assumptions about relationships between speech impairments and language impairments, and relationships between nonverbal IQ and language impairments; (d) briefly review evidence for causal pathways; and (e) present clinical lessons from research on children with SLI.MethodNarrative review is the method used in the study.ConclusionsThe purposes of the clinical focus article were met by reviews, commentary, and supporting arguments in each section. The conclusions are that the research and clinical category of SLI is needed for accurate and precise clinical practice, including diagnosis, prognosis, clinical goals, sequencing of tasks for success, and consideration of language disorders in the context of a broad thicket of related consequences.
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Affiliation(s)
- Mabel L. Rice
- Department of Speech, Language, Hearing, University of Kansas, Lawrencee
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Abstract
BACKGROUND Children with perinatal HIV (pHIV) may display distinct long-term cognitive phenotypes. We used group-based trajectory modeling to identify clusters of children with pHIV after similar developmental trajectories and predictors of belonging to select cognitive trajectory groups. METHODS Participants included children, 4-17 years of age, with pHIV in Thailand and Cambodia. Cognitive measures included translated versions of Intelligence Quotient tests, Color Trails Tests and Beery-Buktenica Developmental Test of Visual-Motor Integration conducted semiannually over 3-6 years. The best fit of trajectory groups was determined using maximum likelihood estimation. Multivariate logistic regression identified baseline factors associated with belonging to the lowest scoring trajectory group. RESULTS Group-based trajectory analyses revealed a 3-cluster classification for each cognitive test, labeled as high, medium and low scoring groups. Most trajectory group scores remained stable across age. Verbal IQ declined in all 3 trajectory groups and the high scoring group for Children's Color Trails Test 1 and 2 showed an increase in scores across age. Children in the lowest scoring trajectory group were more likely to present at an older age and report lower household income. CONCLUSIONS Group-based trajectory modeling succinctly classifies cohort heterogeneity in cognitive outcomes in pHIV. Most trajectories remained stable across age suggesting that cognitive potential is likely determined at an early age with the exception of a small subgroup of children who displayed developmental gains in select cognitive domains and may represent those with better cognitive reserve. Poverty and longer duration of untreated HIV may predispose children with pHIV to suboptimal cognitive development.
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Rice ML, Russell JS, Frederick T, Purswani M, Williams PL, Siberry GK, Redmond SM, Hoffman HJ, Yao TJ. Risk for Speech and Language Impairments in Preschool Age HIV-exposed Uninfected Children With In Utero Combination Antiretroviral Exposure. Pediatr Infect Dis J 2018; 37:678-685. [PMID: 29278615 PMCID: PMC5995619 DOI: 10.1097/inf.0000000000001875] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Perinatally HIV-exposed but uninfected (HEU) children have elevated risk of late language emergence at 1 year of age, with possible links to in utero antiretroviral (ARV) exposure. We investigated possible risks for speech impairments (SIs) and language impairments (LI) in preschool monolingual HEU children in the United States. METHODS Speech and language assessments were conducted as part of the Pediatric HIV/AIDS Cohort Study Surveillance Monitoring of ART Toxicities study at ages 3 (N = 208) and 5 (N = 429) years. Domains of speech, overall language, vocabulary and grammar were assessed. SI and LI were defined by standardized scores <15th percentile and categorized as primary (normal nonverbal IQ ≥ 85 without hearing loss) and concomitant (low nonverbal IQ and/or presence of hearing loss). Logistic regression models were used to estimate odds of SI and LI for different ARV exposures, adjusted for confounding variables. RESULTS The risk for language impairments in HEU children was higher than population norms; risk for SIs was not elevated. Risk factors for impairments included male sex, black race and other socioeconomic measures, although these varied by age, primary (P) versus concomitant (C) impairment and by speech or language measure. Adjusted logistic regression models revealed lower and increased risk for specific ARVs. Tenofovir exposure was associated with increased risk for SI at 3 years of age but was associated with decreased risk for concomitant language impairment at 5 years of age. CONCLUSIONS Further investigation of combination ARV exposure and speech/language impairment among preschool children is needed to confirm associations.
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Affiliation(s)
- Mabel L. Rice
- Child Language Doctoral Program, University of Kansas
| | - Jonathan S. Russell
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health
| | - Toni Frederick
- Maternal, Child & Adolescent Center for Infectious Diseases and Virology, Keck School of Medicine of the University of Southern California
| | - Murli Purswani
- Division of Pediatric Infectious Disease, Icahn School of Medicine at Mount Sinai, Bronx-Lebanon Hospital Center
| | - Paige L. Williams
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health
| | - George K. Siberry
- Maternal and Pediatric Infectious Disease Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health
| | | | - Howard J. Hoffman
- Epidemiology and Statistics Program, National Institute on Deafness and Other Communication Disorders, National Institutes of Health
| | - Tzy-Jyun Yao
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health
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Kang E, Leu CS, Snyder J, Robbins RN, Bucek A, Mellins CA. Caregiver perceptions of environment moderate relationship between neighborhood characteristics and language skills among youth living with perinatal HIV and uninfected youth exposed to HIV in New York City. AIDS Care 2018; 31:61-68. [PMID: 29950105 DOI: 10.1080/09540121.2018.1492698] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Despite the increased recognition of how neighborhood conditions bear on cognitive and academic outcomes, no studies have examined the influences of objective and subjective neighborhood indices on specific areas of cognitive functioning among youth living with perinatal HIV (PHIV). In the United States (US), this is of particular concern as HIV has disproportionately affected African American youth living in economically disadvantaged and racially segregated communities. Thus, based on a longitudinal cohort study of psychosocial and behavioral health outcomes in 340 perinatally HIV-exposed but uninfected (PHEU) and PHIV youth residing in New York City, ages 9-16 years at enrollment, we analyzed data from baseline and multiple follow-up (FU) quantitative interviews with youth and their primary caregivers, from when they were at least 13-years-old (approximately 4-6 years post enrollment). We examined the association between baseline neighborhood indices (2000 US census data and caregiver's perception of neighborhood stressors) and youth receptive language skills (PPVT; Peabody Picture Vocabulary Test) at FU2 and FU3. Census data (percentage of families in neighborhood living below the national poverty rate, median neighborhood household income, and percentage of residents professionally employed) were not independently associated with PPVT scores at both follow-ups. However, in the logistic regression model, the more caregivers perceived their neighborhood as stressful and subjected to violence, the stronger the relationship between census data indicators of low resource neighborhoods and lower PPVT scores for both groups. Findings support "place-based" policies and practices that alleviate caregiver experiences of neighborhood stressors which may contribute to improved cognitive outcomes for youth living with and affected by PHIV.
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Affiliation(s)
- Ezer Kang
- a Department of Psychology , Howard University , Washington , DC , USA
| | - Cheng-Shiun Leu
- b HIV Center for Clinical and Behavioral Studies , New York State Psychiatric Institute, Columbia University , New York , NY , USA
| | - Jordan Snyder
- c Department of Psychology , Wheaton College , Wheaton , IL , USA
| | - Reuben N Robbins
- b HIV Center for Clinical and Behavioral Studies , New York State Psychiatric Institute, Columbia University , New York , NY , USA
| | - Amelia Bucek
- b HIV Center for Clinical and Behavioral Studies , New York State Psychiatric Institute, Columbia University , New York , NY , USA
| | - Claude A Mellins
- b HIV Center for Clinical and Behavioral Studies , New York State Psychiatric Institute, Columbia University , New York , NY , USA
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Iloh KK, Emodi IJ, Ibeziako NS, Ikefuna AN, Ubesie AC, Iloh ON, Ilechukwu GC, Ayuk AC. Neurocognitive Function of School-aged HIV-infected Children in Enugu, Nigeria. J Trop Pediatr 2017; 63:425-430. [PMID: 28334859 DOI: 10.1093/tropej/fmx006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Evidence has shown neurocognitive problems often exist among human immunodeficiency virus (HIV)-infected children. There are limited data for children in Nigeria. METHODS This was a cross-sectional study of 100 school-aged perinatally HIV-infected children seen in the paediatric HIV clinic and age/sex-matched controls from the general paediatric clinic. Neuro-cognitive functioning was assessed using the Raven's progressive matrices (RPM) that has been adapted for the Nigerian population. RESULTS The mean RPM score of subjects was 22.97 ± 11.35 compared with 32.93 ± 15.71 among controls (p < 0.001). Twenty-two percent of subjects in the HIV-infected group vs. 56% of controls were in the above-average intelligence group on the RPM. Thirty-four percent had average scores, while 22% were in the below-average scoring range. Neuro-cognitive functioning of the subjects was significantly affected by immunologic staging and socio-economic status. CONCLUSIONS Neurocognitive functioning of the HIV-infected children was significantly lower than those of their un-infected counterparts. Neurodevelopmental evaluation should be part of standard care in HIV-infected children in Nigerian setting.
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Affiliation(s)
- Kenechukwu K Iloh
- Department of Paediatrics, University of Nigeria Enugu Campus, Enugu 400001, Nigeria.,Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu 400001, Nigeria
| | - Ifeoma J Emodi
- Department of Paediatrics, University of Nigeria Enugu Campus, Enugu 400001, Nigeria.,Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu 400001, Nigeria
| | - Ngozi S Ibeziako
- Department of Paediatrics, University of Nigeria Enugu Campus, Enugu 400001, Nigeria.,Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu 400001, Nigeria
| | - Anthony N Ikefuna
- Department of Paediatrics, University of Nigeria Enugu Campus, Enugu 400001, Nigeria.,Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu 400001, Nigeria
| | - Agozie C Ubesie
- Department of Paediatrics, University of Nigeria Enugu Campus, Enugu 400001, Nigeria.,Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu 400001, Nigeria
| | - Ogochukwu N Iloh
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu 400001, Nigeria
| | - Gideon C Ilechukwu
- Whiston Hospital, St Helen's and Knowsley Teaching Hospital NHS Trust, Prescot L35 5DR, UK
| | - Adaeze C Ayuk
- Department of Paediatrics, University of Nigeria Enugu Campus, Enugu 400001, Nigeria.,Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu 400001, Nigeria
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van Wyhe KS, van de Water T, Boivin MJ, Cotton MF, Thomas KGF. Cross-cultural assessment of HIV-associated cognitive impairment using the Kaufman assessment battery for children: a systematic review. J Int AIDS Soc 2017; 20:21412. [PMID: 28664684 PMCID: PMC5515037 DOI: 10.7448/ias.20.1.21412] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 04/25/2017] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Despite improved efficacy of, and access to, combination antiretroviral therapy (cART), HIV-associated cognitive impairments remain prevalent in both children and adults. Neuropsychological tests that detect such impairment can help clinicians formulate effective treatment plans. The Kaufman Assessment Battery for Children (KABC), although developed and standardized in the United States, is used frequently in many different countries and cultural contexts to assess paediatric performance across various cognitive domains. This systematic review investigated the cross-cultural utility of the original KABC, and its 2nd edition (KABC-II), in detecting HIV-associated cognitive impairment in children and adolescents. METHODS We entered relevant keywords and MeSH terms into the PubMed, PsycInfo, EBSCOHost, ProQuest, and Scopus databases, with search limits set from 1983-2017. Two independent reviewers evaluated the retrieved abstracts and manuscripts. Studies eligible for inclusion in the review were those that (a) used the KABC/KABC-II to assess cognitive function in children/adolescents aged 2-18 years, (b) featured a definition of cognitive impairment (e.g. >2 SD below the mean) or compared the performance of HIV-infected and uninfected control groups, and (c) used a sample excluded from population on which the instruments were normed. RESULTS AND DISCUSSION We identified nine studies (eight conducted in African countries, and one in the United Kingdom) to comprise the review's sample. All studies detected cognitive impairment in HIV-infected children, including those who were cART-naïve or who were cART treated and clinically stable. KABC/KABC-II subtests assessing simultaneous processing appeared most sensitive. Evaluation of the methodological quality of the selected studies by two independent reviews suggested that shortcomings included reporting and selection biases. CONCLUSIONS This systematic review provides evidence for the cross-cultural utility of the KABC/KABC-II, particularly the simultaneous processing subtests, in detecting cognitive impairment in HIV-infected children (including those who are clinically stable). Although the current results suggest there is justification for using the KABC/KABC-II primarily in East Africa, further investigation is required to explore the instrument's utility in other HIV-prevalent regions of the globe.
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Affiliation(s)
- Kaylee S van Wyhe
- ACSENT Laboratory, Department of Psychology, University of Cape Town, Cape Town, South Africa
- Children with Infectious Diseases Clinical Research Unit, Department of Paediatrics and Child Health, University of Stellenbosch, Cape Town, South Africa
| | - Tanya van de Water
- Children with Infectious Diseases Clinical Research Unit, Department of Paediatrics and Child Health, University of Stellenbosch, Cape Town, South Africa
- Department of Psychiatry, University of Stellenbosch, Cape Town, South Africa
| | - Michael J Boivin
- Department of Psychiatry and Neurology and Ophthalmology, Michigan State University, East Lansing, MI, USA
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Mark F Cotton
- Children with Infectious Diseases Clinical Research Unit, Department of Paediatrics and Child Health, University of Stellenbosch, Cape Town, South Africa
| | - Kevin GF Thomas
- ACSENT Laboratory, Department of Psychology, University of Cape Town, Cape Town, South Africa
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Benki-Nugent S, Wamalwa D, Langat A, Tapia K, Adhiambo J, Chebet D, Okinyi HM, John-Stewart G. Comparison of developmental milestone attainment in early treated HIV-infected infants versus HIV-unexposed infants: a prospective cohort study. BMC Pediatr 2017; 17:24. [PMID: 28095807 PMCID: PMC5240280 DOI: 10.1186/s12887-017-0776-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 01/02/2017] [Indexed: 11/18/2022] Open
Abstract
Background Infant HIV infection is associated with delayed milestone attainment. The extent to which effective antiretroviral therapy (ART) prevents these delays is not well defined. Methods Ages at attainment of milestones were compared between HIV-infected (initiated ART by age <5 months), and HIV-unexposed uninfected (HUU) infants. Kaplan Meier analyses were used to estimate and compare (log-rank tests) ages at milestones between groups. Adjusted analyses were performed using Cox proportional hazards models. Results Seventy-three HIV-infected on ART (median enrollment age 3.7 months) and 92 HUU infants (median enrollment age 1.6 months) were followed prospectively. HIV-infected infants on ART had delays in developmental milestone attainment compared to HUU: median age at attainment of sitting with support, sitting unsupported, walking with support, walking unsupported, monosyllabic speech and throwing toys were each delayed (all p-values <0.0005). Compared with HUU, the subset of HIV-infected infants with both virologic suppression and immune recovery at 6 months had delays for speech (delay: 2.0 months; P = 0.0002) and trend to later walking unsupported. Among HIV-infected infants with poor 6-month post-ART responses (lacking viral suppression and immune recovery) there were greater delays versus HUU for: walking unsupported (delay: 4.0 months; P = 0.0001) and speech (delay: 5.0 months; P < 0.0001). Conclusions HIV infected infants with viral suppression on ART had better recovery of developmental milestones than those without suppression, however, deficits persisted compared to uninfected infants. Earlier ART may be required for optimized cognitive outcomes in perinatally HIV-infected infants. Trial registration NCT00428116; January 22, 2007. Electronic supplementary material The online version of this article (doi:10.1186/s12887-017-0776-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sarah Benki-Nugent
- Department of Global Health, University of Washington, Box 359909, 325 9th Ave., Seattle, WA, 98104, USA.
| | - Dalton Wamalwa
- Department of Paediatrics and Child Health, University of Nairobi, Nairobi, Kenya
| | - Agnes Langat
- Department of Paediatrics and Child Health, University of Nairobi, Nairobi, Kenya
| | - Kenneth Tapia
- Department of Global Health, University of Washington, Box 359909, 325 9th Ave., Seattle, WA, 98104, USA
| | - Judith Adhiambo
- Department of Paediatrics and Child Health, University of Nairobi, Nairobi, Kenya
| | - Daisy Chebet
- Department of Paediatrics and Child Health, University of Nairobi, Nairobi, Kenya
| | - Helen Moraa Okinyi
- Department of Paediatrics and Child Health, University of Nairobi, Nairobi, Kenya
| | - Grace John-Stewart
- Department of Global Health, University of Washington, Box 359909, 325 9th Ave., Seattle, WA, 98104, USA
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Redmond SM, Yao TJ, Russell JS, Rice ML, Hoffman HJ, Siberry GK, Frederick T, Purswani M, Williams PL. Longitudinal Evaluation of Language Impairment in Youth With Perinatally Acquired Human Immunodeficiency Virus (HIV) and Youth With Perinatal HIV Exposure. J Pediatric Infect Dis Soc 2016; 5:S33-S40. [PMID: 27856674 PMCID: PMC5181542 DOI: 10.1093/jpids/piw045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 07/11/2016] [Indexed: 11/12/2022]
Abstract
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. RESULTS Of 319 participants, 112 had LI at baseline. Upon re-evaluation, SCs were highly stable and changes were similar in PHIV (n = 212) and PHEU (n = 107) participants. Those with family history of language delays had a 2.39 point lower mean increase in SCs than those without, after controlling for demographic and socioeconomic factors and baseline LI status. Among PHIV participants, CD4 count <350 cells/mm3 was associated with lower mean SC change (4.32 points), and exposure to combination antiretroviral therapy (cART) or protease inhibitors (PIs) was associated with a higher mean SC change (5.93 and 4.19 points, respectively). Initial LI was persistent in most cases (78%); 20 new cases occurred (10%). Female sex was associated with higher odds of LI resolution. Among PHIV, duration and baseline cART and history of PI use were associated with LI resolution; higher percentage of detectable viral loads before baseline was associated with lower odds of resolution. CONCLUSIONS The PHIV and PHEU youth are at risk for persistent LI, and family history of language delays was a risk factor for persistence of problems. Measures of successful HIV treatment predicted more favorable outcomes among PHIV youth.
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Affiliation(s)
| | - Tzy-Jyun Yao
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health
| | - Jonathan S. Russell
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health
| | | | - Howard J. Hoffman
- Epidemiology and Statistics Program, National Institute on Deafness and Other Communication Disorders, National Institutes of Health
| | - George K. Siberry
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health
| | - Toni Frederick
- Maternal, Child and Adolescent Center for Infectious Diseases and Virology, Keck School of Medicine of the University of Southern California
| | - Murli Purswani
- Division of Pediatric Infectious Disease, Department of Pediatrics, Bronx-Lebanon Hospital Center, New York, New York
| | - Paige L. Williams
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health
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15
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Das PK, Maiti S, Sinha NK. Abundance of psychiatric morbidity in perinatally HIV infected children and adolescents with comparison to their HIV negative sibling. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.npbr.2016.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Phillips N, Amos T, Kuo C, Hoare J, Ipser J, Thomas KGF, Stein DJ. HIV-Associated Cognitive Impairment in Perinatally Infected Children: A Meta-analysis. Pediatrics 2016; 138:peds.2016-0893. [PMID: 27940772 PMCID: PMC5079077 DOI: 10.1542/peds.2016-0893] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/15/2016] [Indexed: 01/26/2023] Open
Abstract
CONTEXT Research shows, conclusively, that perinatal HIV infection has negative effects on cognitive functioning of children and adolescents. However, the extent of these cognitive impairments is unknown. Current literature does not document specific cognitive domains most affected in HIV-infected children and adolescents. OBJECTIVE To systematically review and meta-analyze the degree of cognitive impairment, and the specific cognitive domains affected, in children and adolescents with perinatally acquired HIV infection. DATA SOURCES We systematically searched 5 electronic bibliographic databases, namely: PubMed, PsychINFO, Academic Search Premier, Scopus, and WorldCat, by using a search protocol specifically designed for this study. STUDY SELECTION Studies were selected on the basis of set a priori eligibility criteria. Titles, abstracts, and full texts were assessed by 2 independent reviewers. DATA EXTRACTION Data from included studies were extracted into Microsoft Excel by 2 independent reviewers. RESULTS Twenty-two studies were identified for inclusion in the systematic review and of this, 6 studies were included in the meta-analysis. Results from the meta-analysis indicated that working memory and executive function were the domains most affected by the HIV virus. LIMITATIONS Only 27% of the included studies were suitable to enter into the meta-analysis. There was significant geographic bias in published studies, with only 32% (7/22) of included studies from sub-Saharan Africa. CONCLUSIONS The evidence supports an association between HIV infection in children and adolescents and cognitive impairment in the domains of working memory, executive function and processing speed, with effect size estimates also providing some support for deficits in visual memory and visual-spatial ability.
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Affiliation(s)
| | - Taryn Amos
- Department of Psychiatry and Mental Health and
| | - Caroline Kuo
- Department of Psychiatry and Mental Health and,Department of Behavioral and Social Sciences, Brown University, Providence, Rhode Island; and
| | | | | | - Kevin G. F. Thomas
- ACSENT Laboratory, Department of Psychology, University of Cape Town, Cape Town, South Africa
| | - Dan J. Stein
- Department of Psychiatry and Mental Health and,South African Medical Research Council Unit on Anxiety and Stress Disorders, Department of Psychiatry, University of Stellenbosch, Cape Town, South Africa
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17
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Tassiopoulos K, Patel K, Alperen J, Kacanek D, Ellis A, Berman C, Allison SM, Hazra R, Barr E, Cantos K, Siminski S, Massagli M, Bauermeister J, Siddiqui DQ, Puga A, Van Dyke R, Seage GR. Following young people with perinatal HIV infection from adolescence into adulthood: the protocol for PHACS AMP Up, a prospective cohort study. BMJ Open 2016; 6:e011396. [PMID: 27288383 PMCID: PMC4908871 DOI: 10.1136/bmjopen-2016-011396] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION The first generation of adolescents born with HIV infection has reached young adulthood due to advances in treatment. It is important to continue follow-up of these individuals to assess their long-term medical, behavioural and mental health and ability to successfully transition to adulthood while coping with a chronic, potentially stigmatising condition. To accomplish this, and to maintain their interest in long-term research participation, we need to accommodate the changing lifestyles and interests of young adult study participants while ensuring valid data collection. We report the protocol for Pediatric HIV/AIDS Cohort Study (PHACS) Adolescent Master Protocol (AMP) Up, a prospective cohort study enrolling young adult participants for long-term follow-up. METHODS AND ANALYSIS AMP Up is recruiting 850 young men and women 18 years of age and older-600 perinatally HIV-infected and a comparison group of 250 perinatally HIV-exposed, uninfected-at 14 clinical research sites in the USA and Puerto Rico. Recruitment began in April 2014 and is ongoing, with 305 participants currently enrolled. Planned follow-up is ≥6 years. Data are collected with a flexible hybrid of online and in-person methods. Outcomes include: transition to adult clinical care and retention in care; end-organ diseases; malignancies; metabolic complications; sexually transmitted infections; reproductive health; mental health and neurocognitive functioning; adherence to antiretroviral treatment; sexual behaviour and substance use; hearing and language impairments; and employment and educational achievement. ETHICS AND DISSEMINATION The study received ethical approval from the Harvard T.H. Chan School of Public Health's institutional review board (IRB), and from the IRBs of each clinical research site. All participants provide written informed consent; for cognitively impaired individuals with legally authorised representatives, legal guardian permission and participant assent is obtained. Findings will be disseminated through peer-reviewed journals, conference presentations and participant summaries.
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Affiliation(s)
- Katherine Tassiopoulos
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Kunjal Patel
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Julie Alperen
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Deborah Kacanek
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Angela Ellis
- Frontier Science and Technology Research Foundation, Inc, Amherst, New York, USA
| | - Claire Berman
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Susannah M Allison
- Division of AIDS Research, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
| | - Rohan Hazra
- Maternal and Pediatric Infectious Disease Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
| | - Emily Barr
- Department of Pediatric Infectious Diseases, University of Colorado, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Krystal Cantos
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Suzanne Siminski
- Frontier Science and Technology Research Foundation, Inc, Amherst, New York, USA
| | - Michael Massagli
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Jose Bauermeister
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | - Danish Q Siddiqui
- Department of Pediatrics, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Ana Puga
- Children's Diagnostic & Treatment Center, Inc., Fort Lauderdale, Florida, USA
| | - Russell Van Dyke
- Department of Pediatrics, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - George R Seage
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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18
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Abstract
BACKGROUND Learning and memory in youth with perinatally acquired HIV (PHIV) are poorly understood, despite their importance for academic, healthcare and daily functioning. METHODS PHIV (n = 173) and perinatally HIV-exposed but uninfected (PHEU, n = 85) participants (aged 9-19 years) in a substudy of the Pediatric HIV/AIDS Cohort Study completed age-standardized tests of verbal and visual learning and delayed memory. Linear regression models implemented via generalized estimating equations were used to compare memory measures in PHEU participants versus PHIV youth with and without Centers for Disease Control and Prevention class C diagnosis (PHIV-C, n = 45 and PHIV-non-C, n = 128, respectively), adjusting for sociodemographic covariates. RESULTS Participants (mean age = 14.10 years) were 54% female, 75% Black and 18% Hispanic. Although unadjusted analyses showed significantly lower visual recognition memory and verbal delayed recall for PHIV-C compared with PHEU participants and lower verbal learning for PHIV-C and non-C groups compared with PHEU, differences persisted only for visual recognition memory after adjusting for sociodemographic covariates. For PHIV youth, current CD4% <25 was associated with poorer verbal learning, and older age at peak viral load was associated with poorer verbal delayed recall and design memory. CONCLUSIONS Youth with PHIV, particularly those with Centers for Disease Control and Prevention class C diagnosis, showed poorer performance on some measures of learning and memory compared with PHEU. Although group differences in verbal memory were largely attributable to sociodemographic characteristics, associations of class C diagnosis with poorer visual recognition memory and of current CD4% with poorer verbal learning suggest subtle effects of HIV on learning and memory in youth with PHIV.
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19
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Van Dyke RB, Chadwick EG, Hazra R, Williams PL, Seage GR. The PHACS SMARTT Study: Assessment of the Safety of In Utero Exposure to Antiretroviral Drugs. Front Immunol 2016; 7:199. [PMID: 27242802 PMCID: PMC4876360 DOI: 10.3389/fimmu.2016.00199] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 05/09/2016] [Indexed: 01/14/2023] Open
Abstract
The Surveillance Monitoring for ART Toxicities (SMARTT) cohort of the Pediatric HIV/AIDS Cohort Study includes over 3,500 HIV-exposed but uninfected infants and children at 22 sites in the US, including Puerto Rico. The goal of the study is to determine the safety of in utero exposure to antiretrovirals (ARVs) and to estimate the incidence of adverse events. Domains being assessed include metabolic, growth and development, cardiac, neurological, neurodevelopmental (ND), behavior, language, and hearing. SMARTT employs an innovative trigger-based design as an efficient means to identify and evaluate adverse events. Participants who met a predefined clinical or laboratory threshold (trigger) undergo additional evaluations to define their case status. After adjusting for birth cohort and other factors, there was no significant increase in the likelihood of meeting overall case status (case in any domain) with exposure to combination ARVs (cARVs), any ARV class, or any specific ARV. However, several individual ARVs were significantly associated with case status in individual domains, including zidovudine for a metabolic case, first trimester stavudine for a language case, and didanosine plus stavudine for a ND case. We found an increased rate of preterm birth with first trimester exposure to protease inhibitor-based cARV. Although there was no overall increase in congenital anomalies with first trimester cARV, a significant increase was seen with exposure to atazanavir, ritonavir, and didanosine plus stavudine. Tenofovir exposure was associated with significantly lower mean whole-body bone mineral content in the newborn period and a lower length and head circumference at 1 year of age. With ND testing at 1 year of age, specific ARVs (atazanavir, ritonavir-boosted lopinavir, nelfinavir, and tenofovir) were associated with lower performance, although all groups were within the normal range. No ARVs or classes were associated with lower performance between 5 and 13 years of age. Atazanavir and saquinavir exposure were associated with late language emergence at 1 year, but not at 2 years of age. The results of the SMARTT study are generally reassuring, with little evidence for serious adverse events resulting from in utero ARV exposure. However, several findings of concern warrant further evaluation, and new ARVs used in pregnancy need to be evaluated.
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Affiliation(s)
- Russell B Van Dyke
- Department of Pediatrics, Tulane University School of Medicine , New Orleans, LA , USA
| | - Ellen Gould Chadwick
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University (NUFSM) , Chicago, IL , USA
| | - Rohan Hazra
- Eunice Kennedy Shriver National Institute of Child Health and Human Development , Bethesda, MD , USA
| | - Paige L Williams
- Department of Biostatistics, Harvard T.H. Chan School of Public Health , Boston, MA , USA
| | - George R Seage
- Department of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, MA , USA
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20
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Abstract
OBJECTIVE To evaluate the safety of in-utero exposure to atazanavir and neurodevelopment in perinatally HIV-exposed but uninfected (PHEU) infants. DESIGN Prospective cohort study of mother-PHEU infant pairs in the Surveillance Monitoring for ART Toxicities protocol of the Pediatric HIV/AIDS Cohort Study. METHODS Pregnant women living with HIV who initiated an antiretroviral regimen during pregnancy were followed from the date of antiretroviral initiation. Women were classified according to whether the antiretroviral regimen contained atazanavir and the trimester of antiretroviral initiation. Neurodevelopment at 9-15 months was evaluated using the Bayley Scales of Infant and Toddler Development-Third Edition (Bayley-III). We estimated mean differences for the five Bayley-III domains for atazanavir-containing regimens versus all other regimens. Models included baseline covariates and adjustment for failure to complete the Bayley-III using inverse probability weighting. RESULTS PHEU infants were exposed in utero to atazanavir-containing (n = 167) and nonatazanavir-containing (n = 750) antiretroviral regimens. The adjusted mean differences (95% confidence interval) in Bayley-III domain scores for initiating an atazanavir-containing regimen in the first trimester were: cognitive, -1.5 (-6.2, 3.2); language, -3.3 (-7.6, 1.0); motor, -2.9 (-7.7, 1.9); social-emotional, 0.1 (-6.2, 6.4); and adaptive behavior, -0.1 (-4.3, 4.0). The mean differences for the second or third trimester were: cognitive, 0.4 (-3.2, 4.0); language, -3.4 (-6.2, -0.5); motor, 0.3 (-2.9, 3.4); social-emotional, -5.9 (-9.4, -2.3); and adaptive behavior, -2.5 (-5.9, 0.8). CONCLUSION In-utero exposure to atazanavir-containing regimens compared with non-atazanavir-containing regimens may adversely affect language and social-emotional development in PHEU infants during the first year of life, but the absolute difference is small.
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Contemporary issues on the epidemiology and antiretroviral adherence of HIV-infected adolescents in sub-Saharan Africa: a narrative review. J Int AIDS Soc 2015; 18:20049. [PMID: 26385853 PMCID: PMC4575412 DOI: 10.7448/ias.18.1.20049] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 07/10/2015] [Accepted: 08/12/2015] [Indexed: 12/25/2022] Open
Abstract
Introduction Adolescents are a unique and sometimes neglected group in the planning of healthcare services. This is the case in many parts of sub-Saharan Africa, where more than eight out of ten of the world's HIV-infected adolescents live. Although the last decade has seen a reduction in AIDS-related mortality worldwide, largely due to improved access to effective antiretroviral therapy (ART), AIDS remains a significant contributor to adolescent mortality in sub-Saharan Africa. Although inadequate access to ART in parts of the subcontinent may be implicated, research among youth with HIV elsewhere in the world suggests that suboptimal adherence to ART may play a significant role. In this article, we summarize the epidemiology of HIV among sub-Saharan African adolescents and review their adherence to ART, emphasizing the unique challenges and factors associated with adherence behaviour. Methods We conducted a comprehensive search of online databases for articles, relevant abstracts, and conference reports from meetings held between 2010 and 2014. Our search terms included “adherence,” “compliance,” “antiretroviral use” and “antiretroviral adherence,” in combination with “adolescents,” “youth,” “HIV,” “Africa,” “interventions” and the MeSH term “Africa South of the Sahara.” Of 19,537 articles and abstracts identified, 215 met inclusion criteria, and 148 were reviewed. Discussion Adolescents comprise a substantial portion of the population in many sub-Saharan African countries. They are at particular risk of HIV and may experience worse outcomes. Although demonstrated to have unique challenges, there is a dearth of comprehensive health services for adolescents, especially for those with HIV in sub-Saharan Africa. ART adherence is poorer among older adolescents than other age groups, and psychosocial, socio-economic, individual, and treatment-related factors influence adherence behaviour among adolescents in this region. With the exception of a few examples based on affective, cognitive, and behavioural strategies, most adherence interventions have been targeted at adults with HIV. Conclusions Although higher levels of ART adherence have been reported in sub-Saharan Africa than in other well-resourced settings, adolescents in the region may have poorer adherence patterns. There is substantial need for interventions to improve adherence in this unique population.
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Meconium Atazanavir Concentrations and Early Language Outcomes in HIV-Exposed Uninfected Infants With Prenatal Atazanavir Exposure. J Acquir Immune Defic Syndr 2015; 69:178-86. [PMID: 26009830 DOI: 10.1097/qai.0000000000000558] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate whether prenatal atazanavir (ATV) exposure, assessed by meconium antiretroviral (ARV) quantification, predicts early child language outcomes. Prenatal ATV exposure previously was associated with poorer language development in 1-year olds. METHODS Pregnant women with HIV and their uninfected infants enrolled in the Surveillance Monitoring of Antiretroviral Therapy Toxicities study. Meconium ARV concentrations were quantified by liquid chromatography-tandem mass spectrometry. Language development at 1 year was assessed with MacArthur-Bates Communicative Development Inventory (CDI) and Bayley Scales of Infant and Toddler Development-Third Edition (Bayley-III). Late language emergence was defined as ≥ 1 of 4 CDI scores ≤ 10th percentile for age. Associations between fetal ATV exposure timing and duration, meconium ATV concentration, and language outcomes were evaluated, adjusting for potential confounders. RESULTS Through 2013, meconium samples were available from 175 of 432 infants with prenatal ATV exposure. Valid Bayley-III (n = 93) and CDI (n = 106) assessments also were available. After adjustment for potential confounders, higher ATV meconium concentrations were associated with lower late language emergence risk (P = 0.04) and cumulative ATV exposure duration also was associated with higher Bayley-III Language scores (P = 0.03). Maternal ATV duration and initiation week correlated with ATV meconium concentrations (positively and negatively, respectively). CONCLUSIONS Higher meconium ATV concentrations were protective against developmental language delays at 1 year, suggesting the importance of fetal ATV detoxification into meconium. This information supports ATV exposure safety for infant language development. ATV is a preferred ARV for pregnant women with HIV, suggesting the importance of ATV safety investigations. Additionally, further pursuit of the influences on language development in HIV-exposed uninfected infants is required.
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Correlates of age at attainment of developmental milestones in HIV-infected infants receiving early antiretroviral therapy. Pediatr Infect Dis J 2015; 34:55-61. [PMID: 25144793 PMCID: PMC4336221 DOI: 10.1097/inf.0000000000000526] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Infant HIV-1 infection is associated with impaired neurologic and motor development. Antiretroviral therapy (ART) has the potential to improve developmental outcomes but the relative contributions of pre-ART disease status, growth, treatment regimen and ART response during infancy are unknown. METHODS Kenyan ART-naive infants <5-months old initiated ART and had monthly assessment of age of full neck control, unsupported walking and monosyllabic speech during 24 months of follow-up. Pre-ART and post-ART correlates of age at milestone attainment were evaluated using t tests or multivariate linear regression. RESULTS Among 99 infants, pre-ART correlates of later milestone attainment included: underweight and stunted (neck control, walking and speech, all P values <0.05), missed prevention of mother-to-child transmission (P = 0.04) (neck control), previous hospitalization, World Health Organization (WHO) Stage III/IV, low CD4 count, and wasting (speech and walking, all P values <0.05), and low maternal CD4 (speech, P = 0.04). Infants initiated ART at a median of 14 days following enrollment. Infants receiving nevirapinevs lopinavir/ritonavir-based ART attained later speech (18.1 vs. 15.5 months, P = 0.003) [corrected]. Adjusting for pre-ART level, lower 6-month gain in CD4% was associated with later walking (0.18 months earlier per unit increase in CD4%; P = 0.004) and speech (0.12 months earlier per unit increase in CD4%; P = 0.05), and lower 6-month gains in weight-for-age (P = 0.009), height-for-age (P = 0.03) and weight-for-height (P = 0.02) were associated with later walking. CONCLUSION In HIV-infected infants, compromised pre-ART immune and growth status, poor post-ART immune and growth responses, and use of nevirapine- vs. lopinavir/ritonavir-based ART were each associated with later milestone attainment [corrected]. The long-term consequences of these delays are unknown.
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Cohen S, Ter Stege JA, Geurtsen GJ, Scherpbier HJ, Kuijpers TW, Reiss P, Schmand B, Pajkrt D. Poorer cognitive performance in perinatally HIV-infected children versus healthy socioeconomically matched controls. Clin Infect Dis 2014; 60:1111-9. [PMID: 25516183 DOI: 10.1093/cid/ciu1144] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Despite the declining incidence of severe neurological complications such as HIV encephalopathy, human immunodeficiency virus (HIV) infection in children is still associated with a range of cognitive problems. Although most HIV-infected children in industrialized countries are immigrants with a relatively low socioeconomic status (SES), cognitive studies comparing HIV-infected children to SES-matched controls are lacking. METHODS This cross-sectional study included perinatally HIV-infected children and controls matched for age, sex, ethnicity, and SES, who completed a neuropsychological assessment evaluating intelligence, information processing speed, attention, memory, executive function, and visual-motor function. Multivariate normative comparison was used to assess the prevalence of cognitive impairment in the HIV-infected group. Multivariable regression analyses were performed to identify HIV- and combination antiretroviral therapy-related factors associated with cognitive performance. RESULTS In total, 35 perinatally HIV-infected children (median age, 13.8 years; median CD4 count, 770 × 10(6) cells/L; 83% with undetectable HIV RNA) and 37 healthy children (median age, 12.1 years) were included. HIV-infected children scored lower than the healthy controls on all cognitive domains (eg, intelligence quotient [IQ], 76 [standard deviation {SD}, 15.7] vs 87.5 [SD, 13.6] for HIV-infected vs healthy children; P = .002). Cognitive impairment was found in 6 HIV-infected children (17%). The Centers for Disease Control and Prevention (CDC) clinical category at HIV diagnosis was inversely associated with verbal IQ (CDC clinical category C: coefficient -22.98; P = .010). CONCLUSIONS Our results show that cognitive performance of HIV-infected children is poor compared with that of SES-matched healthy controls. Gaining insight into these cognitive deficits is essential, as subtle impairments may progress to more pronounced complications that will influence future intellectual performance, job opportunities, and community participation of HIV-infected children.
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Affiliation(s)
- Sophie Cohen
- Department of Pediatric Hematology, Immunology, and Infectious Diseases
| | - Jacqueline A Ter Stege
- Department of Pediatric Hematology, Immunology, and Infectious Diseases Psychosocial Department, Emma Children's Hospital, Academic Medical Center, University of Amsterdam
| | | | | | - Taco W Kuijpers
- Department of Pediatric Hematology, Immunology, and Infectious Diseases
| | - Peter Reiss
- Department of Global Health, Academic Medical Center, University of Amsterdam, and Amsterdam Institute of Global Health and Development HIV Monitoring Foundation Department of Internal Medicine, Division of Infectious Diseases, Center for Infection and Immunity Amsterdam, Academic Medical Center
| | - Ben Schmand
- Department of Neurology, Academic Medical Center Amsterdam Department of Psychology, University of Amsterdam, The Netherlands
| | - Dasja Pajkrt
- Department of Pediatric Hematology, Immunology, and Infectious Diseases
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25
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Neurodevelopmental benefits of antiretroviral therapy in Ugandan children aged 0-6 years with HIV. J Acquir Immune Defic Syndr 2014; 67:316-22. [PMID: 25314252 DOI: 10.1097/qai.0000000000000295] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND Insufficient data on neurodevelopmental benefits of antiretroviral therapy (ART) in children. METHODS Prospective study of 329 mothers and children aged 0-6 years to assess neurodevelopment. Results stratified by the maternal (M) and child (C) HIV status (MHIV⁻/CHIV⁻, MHIV⁺/CHIV⁻, and MHIV⁺/CHIV⁺). Gross Motor, Visual Reception, Fine Motor, Receptive, and Expressive Language scores were assessed by Mullen Scales of Early Learning. Global cognitive function was derived from an Early Learning Composite (ELC) score. Standardized weight and height for age z scores were constructed, and the lowest 15% cutoff defined disability. Generalized linear models were used to estimate prevalence rate ratios (PRR) adjusted for the child's age, weight, and height. In HIV-positive children, generalized linear models assessed the impact of ART initiation and duration on neurodevelopment. RESULTS Compared with MHIV⁻/CHIV⁻ children, HIV-positive children were more likely to have global deficits in all measures of neurodevelopment except gross motor skills, whereas in MHIV⁺/CHIV⁻ children, there was impairment in receptive language [adjusted PRR = 2.67; confidence interval (CI): 1·08 to 6.60] and the ELC (adjusted PRR = 2.94; CI: 1.11 to 7.82). Of the children born to HIV-positive mothers, HIV-positive children did worse than MHIV⁺/CHIV⁻ only in visual reception skills (adjusted PRR = 2.86; CI: 1.23 to 6.65). Of the 116 HIV-positive children, 44% had initiated ART. Compared with ART duration of <12 months, ART durations of 24-60 months were associated with decreased impairments in Fine Motor, Receptive Language, Expressive Language, and ELC scores. CONCLUSIONS Longer duration on ART is associated with reduction of some neurologic impairment and early diagnosis and treatment of HIV-positive children is a priority.
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De Santis JP, Garcia A, Chaparro A, Beltran O. Integration versus disintegration: a grounded theory study of adolescent and young adult development in the context of perinatally-acquired HIV infection. J Pediatr Nurs 2014; 29:422-35. [PMID: 24486128 PMCID: PMC4096608 DOI: 10.1016/j.pedn.2014.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 01/07/2014] [Accepted: 01/07/2014] [Indexed: 11/18/2022]
Abstract
Adolescents/young adults with perinatally-acquired HIV infection experience a number of issues that impact developmental tasks. No study to date has described the process by which this occurs. The purpose of this grounded theory study was to describe the process by which HIV infection impacts adolescent/young adult development. Interviews were conducted and analyzed with 25 participants age 18 to 24. Six core categories emerged that were used to generate a theory, integration versus disintegration, that describes how perinatal HIV impacts participants' development. The results of this study provide unique clinical considerations for pediatric and adult clinicians providing care for this population.
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Affiliation(s)
- Joseph P De Santis
- University of Miami School of Nursing & Health Studies, Coral Gables, FL.
| | - Ana Garcia
- University of Miami Miller School of Medicine, Department of Pediatrics, Division of Pediatric Infectious Diseases & Immunology, Miami, FL
| | - Aida Chaparro
- University of Miami Miller School of Medicine, Department of Pediatrics, Division of Pediatric Infectious Diseases & Immunology, Miami, FL
| | - Oscar Beltran
- University of Texas at El Paso College of Health Sciences/School of Nursing, El Paso, TX
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Crowell CS, Malee KM, Yogev R, Muller WJ. Neurologic disease in HIV-infected children and the impact of combination antiretroviral therapy. Rev Med Virol 2014; 24:316-31. [PMID: 24806816 DOI: 10.1002/rmv.1793] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/23/2014] [Accepted: 03/24/2014] [Indexed: 11/10/2022]
Abstract
The prevalence of HIV-associated neurocognitive impairment in perinatally HIV-infected children has declined since the introduction of combination antiretroviral therapy (cART). Early initiation of cART in infancy has been shown to positively impact neurodevelopment; however, children continue to be diagnosed with HIV outside of the early infancy period and can experience subtle to severe neurocognitive deficits despite cART. The causes of these neurocognitive deficits despite effective cART are multifactorial and likely include continued viral replication in the CNS, ongoing neuroinflammation, irreversible CNS injury prior to cART initiation, neurotoxic effects of cART, and socioeconomic and psychosocial effects. Many aspects of our understanding of HIV-associated neurocognitive disorders have emerged from research in adult patients, but perinatally HIV-infected children represent a very different population. These children were exposed to HIV during a period of rapid brain development and have lifelong infection and potential lifelong cART exposure. HIV is no longer a rapidly fatal disease, and most HIV-infected children in resource-rich countries are living into adulthood. It is therefore critical to optimize neurocognitive outcomes of these youth. This review summarizes current understanding of the pathogenesis of HIV-associated CNS infection and the impact of cART on neurocognitive function in children and adolescents and discusses important areas for future research.
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Affiliation(s)
- Claudia S Crowell
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
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Smith R, Wilkins M. Perinatally acquired HIV infection: long-term neuropsychological consequences and challenges ahead. Child Neuropsychol 2014; 21:234-68. [PMID: 24697320 DOI: 10.1080/09297049.2014.898744] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Over the past three decades, perinatal HIV infection in the United States has evolved from a fatal disease to a manageable chronic illness. As the majority of youth with perinatal HIV infection age into adolescence and adulthood, management of this stigmatizing, transmittable disease in the backdrop of a cadre of environmental stressors presents challenges beyond those of other chronic illnesses. The neurologic and neuropsychological consequences of this neurotropic virus have important implications for the successful navigation of responsibilities related to increasingly independent living of this aging population. This article will review the neurologic and neuropsychological consequences of perinatal HIV infection and concomitant factors in the era of highly active antiretroviral therapy and will provide an overview of the neuropathology, pathogenesis, neuroimaging findings, and treatment of perinatal HIV infection, as well as recommendations for service provision and future research.
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Affiliation(s)
- Renee Smith
- a Department of Pediatrics , University of Illinois at Chicago , Chicago IL , USA
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Evaluation of risk for late language emergence after in utero antiretroviral drug exposure in HIV-exposed uninfected infants. Pediatr Infect Dis J 2013; 32:e406-13. [PMID: 24067563 PMCID: PMC3785009 DOI: 10.1097/inf.0b013e31829b80ee] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Combination antiretroviral (cARV) regimens are recommended for pregnant women with HIV to prevent perinatal HIV transmission. Safety is a concern for infants who were HIV-exposed but uninfected, particularly for neurodevelopmental problems, such as language delays. METHODS We studied late language emergence (LLE) in HIV-exposed but uninfected children enrolled in a US-based prospective cohort study. LLE was defined as a caregiver-reported score ≤10th percentile in any of 4 domains of the MacArthur-Bates Communicative Development Inventory for 1-year olds and as ≥1 standard deviation below age-specific norms for the Ages and Stages Questionnaire for 2-year olds. Logistic regression models were used to evaluate associations of in utero cARV exposure with LLE, adjusting for infant, maternal and environmental characteristics. RESULTS 1129 language assessments were conducted among 792 1- and 2-year-old children (50% male, 62% black and 37% Hispanic). Overall, 86% had in utero exposure to cARV and 83% to protease inhibitors. LLE was identified in 26% of 1-year olds and 23% of 2-year olds, with higher rates among boys. In adjusted models, LLE was not associated with maternal cARV or ARV drug classes in either age group. Among cARV-exposed 1-year olds, increased odds of LLE was observed for those exposed to atazanavir (adjusted odds ratio = 1.83, 95% confidence interval: 1.10-3.04), particularly after the first trimester (adjusted odds ratio = 3.56, P = 0.001), compared with atazanavir-unexposed infants. No associations of individual ARV drugs with LLE were observed among 2-year olds. CONCLUSIONS In utero cARV exposure showed little association with LLE, except for a higher risk of language delay observed in 1-year-old infants with atazanavir exposure.
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Neurodevelopment in perinatally HIV-infected children: a concern for adolescence. J Int AIDS Soc 2013; 16:18603. [PMID: 23782482 PMCID: PMC3687073 DOI: 10.7448/ias.16.1.18603] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 04/04/2013] [Accepted: 04/16/2013] [Indexed: 12/14/2022] Open
Abstract
Globally, an estimated 3.4 million children are living with HIV, yet little is known about the effects of HIV and antiretroviral treatment (ART) on the developing brain, and the neurodevelopmental and behavioural outcomes of perinatally HIV-infected (PHIV+) adolescents. We reviewed the literature on neurodevelopmental outcomes in PHIV+ children and adolescents, and summarized the current evidence on behaviour, general cognition, specific domains, hearing and language, school performance and physical disabilities due to neurological problems. Evidence suggests that PHIV+ children do not perform as well as controls on general cognitive tests, processing speed and visual-spatial tasks, and are at much higher risk for psychiatric and mental health problems. Children with AIDS-defining diagnoses are particularly at risk for poorer outcomes. A striking finding is the lack of published data specific to the adolescent age group (10-25 years), particularly from resource-constrained countries, which have the highest HIV prevalence. In addition, extreme heterogeneity in terms of timing and source of infection, and antiretroviral experience limits our ability to summarize findings of studies and generalize results to other settings. Due to the complex nature of the developing adolescent brain, environmental influences and variation in access to ART, there is an urgent need for research on the longitudinal trajectory of neurodevelopment among children and adolescents perinatally infected with HIV, especially in high burden resource-constrained settings.
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Himes SK, Scheidweiler KB, Tassiopoulos K, Kacanek D, Hazra R, Rich K, Huestis MA. Development and validation of the first liquid chromatography-tandem mass spectrometry assay for simultaneous quantification of multiple antiretrovirals in meconium. Anal Chem 2013; 85:1896-904. [PMID: 23256731 PMCID: PMC3638039 DOI: 10.1021/ac303188j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel method for the simultaneous quantification of 16 antiretroviral (ARV) drugs and 4 metabolites in meconium was developed and validated. Quantification of 6 nucleoside/nucleotide reverse transcriptase inhibitors, 2 non-nucleoside reverse transcriptase inhibitors, 7 protease inhibitors, and 1 integrase inhibitor was achieved in 0.25 g of meconium. Specimen preparation included methanol homogenization and solid-phase extraction. Separate positive and negative polarity multiple reaction monitoring mode injections were required to achieve sufficient sensitivity. Linearity ranged from 10 to 75 ng/g up to 2500 ng/g for most analytes and 100-500 ng/g up to 25,000 ng/g for some; all correlation coefficients were ≥0.99. Extraction efficiencies from meconium were 32.8-119.5% with analytical recovery of 80.3-108.3% and total imprecision of 2.2-11.0% for all quantitative analytes. Two analytes with analytical recovery (70.0-138.5%) falling outside the 80-120% criteria range were considered semiquantitative. Matrix effects were -98.3-47.0% and -98.0-67.2% for analytes and internal standards, respectively. Analytes were stable (>75%) at room temperature for 24 h, 4 °C for 3 days, -20 °C for 3 freeze-thaw cycles over 3 days, and on the autosampler. Method applicability was demonstrated by analyzing meconium from HIV-uninfected infants born to HIV-positive mothers on ARV therapy. This method can be used as a tool to investigate the potential effects of in utero ARV exposure on childhood health and neurodevelopmental outcomes.
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Affiliation(s)
- Sarah K. Himes
- Chemistry and Drug Metabolism Section, Intramural Research Program, National Institute on Drug Abuse, 251 Bayview Boulevard, Baltimore, Maryland 21224
| | - Karl B. Scheidweiler
- Chemistry and Drug Metabolism Section, Intramural Research Program, National Institute on Drug Abuse, 251 Bayview Boulevard, Baltimore, Maryland 21224
| | | | - Deborah Kacanek
- Center for Biostatistics in AIDS Research, Harvard School of Public Health, Boston, Massachusetts 02115
| | - Rohan Hazra
- Pediatric Adolescent and Maternal AIDS Branch, NICHD, NIH, Bethesda, Maryland 20892
| | - Kenneth Rich
- Pediatrics Department, University of Illinois at Chicago, Chicago, Illinois 60612
| | - Marilyn A. Huestis
- Chemistry and Drug Metabolism Section, Intramural Research Program, National Institute on Drug Abuse, 251 Bayview Boulevard, Baltimore, Maryland 21224
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