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Karimi A, Setänen S, Larsson E, Holmström G, Fredriksson Kaul Y, Kochukhova O, Johansson M, Montgomery C, Hellström-Westas L, Wikström J. Brain MRI findings and their association with visual impairment in young adolescents born very preterm. Neuroradiology 2024; 66:145-154. [PMID: 37870588 PMCID: PMC10761469 DOI: 10.1007/s00234-023-03235-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 10/04/2023] [Indexed: 10/24/2023]
Abstract
PURPOSE Very preterm birth increases risk for neonatal white matter injury, but there is limited data on to what extent this persists into adolescence and how this relates to ophthalmological outcomes. The aim of this study was to assess brain MRI findings in 12-year-old children born very preterm compared to controls and their association with concurrent ophthalmological outcomes. METHODS We included 47 children born very preterm and 22 full-term controls (gestational age <32 and >37 weeks, respectively). Brain MRI findings were studied in association with concurrent ophthalmological outcomes at 12-year follow-up. RESULTS Evans index (0.27 vs 0.25, p<0.001) and a proposed "posterior ventricle index" (0.47 vs 0.45, p=0.018) were increased in children born very preterm. Higher gestational age associated with larger corpus callosum area (β=10.7, 95%CI 0.59-20.8). Focal white matter lesions were observed in 15 (32%) of very preterm children and in 1 (5%) of full-term controls. Increased posterior ventricle index increased risk for visual acuity ≤1.0 (OR=1.07×1011, 95%CI=7.78-1.48×1021) and contrast sensitivity <0.5 (OR=2.6×1027, 95%CI=1.9×108-3.5×1046). Decreased peritrigonal white matter thickness associated with impaired visual acuity (β=0.04, 95%CI 0.002-0.07). CONCLUSION More white matter lesions and evidence of lower white matter volume were found in children born very preterm compared with full-term controls at 12-year follow-up. The association between larger posterior ventricle index and reduced visual acuity and contrast sensitivity suggests disturbances of the posterior visual pathway due to diffuse white matter lesions.
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Affiliation(s)
- Annette Karimi
- Department of Surgical Sciences, Neuroradiology, Uppsala University, Uppsala, Sweden.
- Radiology Department, Uppsala University Hospital, Uppsala, Sweden.
| | - Sirkku Setänen
- Department of Pediatric Neurology, University of Turku, Turku, Finland
- Department of Pediatrics, Turku University Hospital, Turku, Finland
| | - Eva Larsson
- Department of Surgical Sciences, Ophthalmology, Uppsala University, Uppsala, Sweden
| | - Gerd Holmström
- Department of Surgical Sciences, Ophthalmology, Uppsala University, Uppsala, Sweden
| | | | - Olga Kochukhova
- Departments of Women's and Children's Health, Uppsala University, Uppsala, Sweden
- Departments of Psychology, Uppsala University, Uppsala, Sweden
| | - Martin Johansson
- Departments of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Cecilia Montgomery
- Departments of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | | | - Johan Wikström
- Department of Surgical Sciences, Neuroradiology, Uppsala University, Uppsala, Sweden
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Bornstein MH, Mash C, Romero R, Gandjbakhche AH, Nguyen T. Electrophysiological Evidence for Interhemispheric Connectivity and Communication in Young Human Infants. Brain Sci 2023; 13:brainsci13040647. [PMID: 37190612 DOI: 10.3390/brainsci13040647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 05/17/2023] Open
Abstract
Little is known empirically about connectivity and communication between the two hemispheres of the brain in the first year of life, and what theoretical opinion exists appears to be at variance with the meager extant anatomical evidence. To shed initial light on the question of interhemispheric connectivity and communication, this study investigated brain correlates of interhemispheric transmission of information in young human infants. We analyzed EEG data from 12 4-month-olds undergoing a face-related oddball ERP protocol. The activity in the contralateral hemisphere differed between odd-same and odd-difference trials, with the odd-different response being weaker than the response during odd-same trials. The infants' contralateral hemisphere "recognized" the odd familiar stimulus and "discriminated" the odd-different one. These findings demonstrate connectivity and communication between the two hemispheres of the brain in the first year of life and lead to a better understanding of the functional integrity of the developing human infant brain.
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Affiliation(s)
- Marc H Bornstein
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, 8404 Irvington Avenue, Bethesda, MD 20892, USA
- Institute for Fiscal Studies, London WC1E 7AE, UK
- United Nations Children's Fund, New York, NY 10017, USA
| | - Clay Mash
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, 8404 Irvington Avenue, Bethesda, MD 20892, USA
- Environmental Influences on Child Health Outcomes, National Institutes of Health, Bethesda, MD 20852, USA
| | - Roberto Romero
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, 8404 Irvington Avenue, Bethesda, MD 20892, USA
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI 48824, USA
| | - Amir H Gandjbakhche
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, 8404 Irvington Avenue, Bethesda, MD 20892, USA
| | - Thien Nguyen
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, 8404 Irvington Avenue, Bethesda, MD 20892, USA
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3
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Unraveling White Matter and Psychopathology After Preterm Birth. Biol Psychiatry 2023; 93:e13-e14. [PMID: 36792304 DOI: 10.1016/j.biopsych.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/05/2023] [Accepted: 01/05/2023] [Indexed: 02/15/2023]
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Kelly KJ, Hutton JS, Parikh NA, Barnes-Davis ME. Neuroimaging of brain connectivity related to reading outcomes in children born preterm: A critical narrative review. Front Pediatr 2023; 11:1083364. [PMID: 36937974 PMCID: PMC10014573 DOI: 10.3389/fped.2023.1083364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 02/06/2023] [Indexed: 03/06/2023] Open
Abstract
Premature children are at high risk for delays in language and reading, which can lead to poor school achievement. Neuroimaging studies have assessed structural and functional connectivity by diffusion MRI, functional MRI, and magnetoencephalography, in order to better define the "reading network" in children born preterm. Findings point to differences in structural and functional connectivity compared to children born at term. It is not entirely clear whether this discrepancy is due to delayed development or alternative mechanisms for reading, which may have developed to compensate for brain injury in the perinatal period. This narrative review critically appraises the existing literature evaluating the neural basis of reading in preterm children, summarizes the current findings, and suggests future directions in the field.
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Affiliation(s)
- Kaitlyn J. Kelly
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - John S. Hutton
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Division of General & Community Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Nehal A. Parikh
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Maria E. Barnes-Davis
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
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5
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Vanes LD, Murray RM, Nosarti C. Adult outcome of preterm birth: Implications for neurodevelopmental theories of psychosis. Schizophr Res 2022; 247:41-54. [PMID: 34006427 DOI: 10.1016/j.schres.2021.04.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/22/2022]
Abstract
Preterm birth is associated with an elevated risk of developmental and adult psychiatric disorders, including psychosis. In this review, we evaluate the implications of neurodevelopmental, cognitive, motor, and social sequelae of preterm birth for developing psychosis, with an emphasis on outcomes observed in adulthood. Abnormal brain development precipitated by early exposure to the extra-uterine environment, and exacerbated by neuroinflammation, neonatal brain injury, and genetic vulnerability, can result in alterations of brain structure and function persisting into adulthood. These alterations, including abnormal regional brain volumes and white matter macro- and micro-structure, can critically impair functional (e.g. frontoparietal and thalamocortical) network connectivity in a manner characteristic of psychotic illness. The resulting executive, social, and motor dysfunctions may constitute the basis for behavioural vulnerability ultimately giving rise to psychotic symptomatology. There are many pathways to psychosis, but elucidating more precisely the mechanisms whereby preterm birth increases risk may shed light on that route consequent upon early neurodevelopmental insult.
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Affiliation(s)
- Lucy D Vanes
- Centre for the Developing Brain, Department of Perinatal Imaging and Health, King's College London, UK; Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK.
| | - Robin M Murray
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Chiara Nosarti
- Centre for the Developing Brain, Department of Perinatal Imaging and Health, King's College London, UK; Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
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Sheng M, Guo T, Mabbott C, Chau V, Synnes A, de Vries LS, Grunau RE, Miller SP. Ventricular Volume in Infants Born Very Preterm: Relationship with Brain Maturation and Neurodevelopment at Age 4.5 Years. J Pediatr 2022; 248:51-58.e2. [PMID: 35561806 DOI: 10.1016/j.jpeds.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 04/19/2022] [Accepted: 05/05/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To evaluate the relationship of quantitative ventricular volume with brain maturation and neurodevelopmental outcomes at age 4.5 years in children born very preterm. STUDY DESIGN T1-weighted imaging, diffusion tensor imaging, and magnetic resonance spectroscopy were performed shortly after birth (n = 212) and at term-equivalent age (TEA) (n = 194). Intraventricular hemorrhage (IVH) grade and white matter injury (WMI) volume were measured on early T1-weighted magnetic resonance imaging (MRI) scans. Total cerebral volume and ventricular volume were quantified using the Multiple Automatically Generated Templates-Brain pipeline. At age 4.5 years, 178 children (84%) underwent cognitive and motor assessments. Multivariable linear regression was used to examine the relationships between ventricular volume and neurodevelopmental outcomes. Generalized estimating equations were used to account for repeated measures when analyzing neonatal MRI data. All models accounted for sex, postmenstrual age at scan, WMI volume, IVH grade, and total cerebral volume and were corrected for multiple comparisons. RESULTS On early MRI, 97 infants had IVH (grade 1, n = 22; grade 2, n = 66; grade 3, n = 9), and 68 had WMI (median, 44 mm3; IQR, 21-296 mm3). IQ at 4.5 years was associated with MRI ventricular volume at the early (β = -0.64; P < .001) and TEA (β = -0.44, P < .001) time points. Motor outcomes were associated with ventricular volume at TEA (β = -0.84, P = .01). Greater ventricular volume independently predicted lower fractional anisotropy in corpus callosum (genu: β = -0.0008, P = .002; splenium: β = -0.003, P < .001) and optic radiations (β = -0.001, P = .004); ventricular volume did not predict the N-acetylaspartate/choline ratio. CONCLUSIONS In children born very preterm, neonatal ventricular size was associated with 4.5-year neurodevelopmental outcomes. Our findings suggest that white matter maturation may be abnormal in the setting of enlarged ventricular size beyond that expected from concurrent brain injuries.
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Affiliation(s)
- Min Sheng
- Department of Paediatrics, University of Toronto and the Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ting Guo
- Department of Paediatrics, University of Toronto and the Hospital for Sick Children, Toronto, Ontario, Canada
| | - Connor Mabbott
- Department of Paediatrics, University of Toronto and the Hospital for Sick Children, Toronto, Ontario, Canada
| | - Vann Chau
- Department of Paediatrics, University of Toronto and the Hospital for Sick Children, Toronto, Ontario, Canada
| | - Anne Synnes
- Department of Pediatrics, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Linda S de Vries
- Department of Neonatology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Ruth E Grunau
- Department of Pediatrics, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Steven P Miller
- Department of Paediatrics, University of Toronto and the Hospital for Sick Children, Toronto, Ontario, Canada; Department of Pediatrics, University of British Columbia and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada.
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Kuula J, Martola J, Hakkarainen A, Räikkönen K, Savolainen S, Salli E, Hovi P, Björkqvist J, Kajantie E, Lundbom N. Brain Volumes and Abnormalities in Adults Born Preterm at Very Low Birth Weight. J Pediatr 2022; 246:48-55.e7. [PMID: 35301016 DOI: 10.1016/j.jpeds.2022.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/03/2022] [Accepted: 03/09/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To assess radiographic brain abnormalities and investigate volumetric differences in adults born preterm at very low birth weight (<1500 g), using siblings as controls. STUDY DESIGN We recruited 79 adult same-sex sibling pairs with one born preterm at very low birth weight and the sibling at term. We acquired 3-T brain magnetic resonance imaging from 78 preterm participants and 72 siblings. A neuroradiologist, masked to participants' prematurity status, reviewed the images for parenchymal and structural abnormalities, and FreeSurfer software 6.0 was used to conduct volumetric analyses. Data were analyzed by linear mixed models. RESULTS We found more structural abnormalities in very low birth weight participants than in siblings (37% vs 13%). The most common finding was periventricular leukomalacia, present in 15% of very low birth weight participants and in 3% of siblings. The very low birth weight group had smaller absolute brain volumes (-0.4 SD) and, after adjusting for estimated intracranial volume, less gray matter (-0.2 SD), larger ventricles (1.5 SD), smaller thalami (-0.6 SD), caudate nuclei (-0.4 SD), right hippocampus (-0.4 SD), and left pallidum (-0.3 SD). We saw no volume differences in total white matter (-0.04 SD; 95% CI, -0.13 to 0.09). CONCLUSIONS Preterm very low birth weight adults had a higher prevalence of brain abnormalities than their term-born siblings. They also had smaller absolute brain volumes, less gray but not white matter, and smaller volumes in several gray matter structures.
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Affiliation(s)
- Juho Kuula
- HUS Medical Imaging Center, Department of Radiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Population Health Unit, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland.
| | - Juha Martola
- HUS Medical Imaging Center, Department of Radiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Antti Hakkarainen
- HUS Medical Imaging Center, Department of Radiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Katri Räikkönen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Sauli Savolainen
- HUS Medical Imaging Center, Department of Radiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Physics, University of Helsinki, Helsinki, Finland
| | - Eero Salli
- HUS Medical Imaging Center, Department of Radiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Petteri Hovi
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland
| | - Johan Björkqvist
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland
| | - Eero Kajantie
- Population Health Unit, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland; PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Nina Lundbom
- HUS Medical Imaging Center, Department of Radiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Giordano V, Stummer S, Lindtner C, Fuiko R, Berger A, Pichler K. Neonatal sepsis is associated with behavioral abnormalities in very low birthweight infants at preschool age. Front Pediatr 2022; 10:906379. [PMID: 35923781 PMCID: PMC9339780 DOI: 10.3389/fped.2022.906379] [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: 03/28/2022] [Accepted: 06/24/2022] [Indexed: 12/05/2022] Open
Abstract
OBJECTIVE This study aimed to investigate neonatal sepsis as potential risk factor for adverse behavioral outcome in very low birth weight infants (VLBWI) at preschool age. Regardless of improvements in the obstetric and neonatal intensive care, preterm infants are still at high risk for behavioral problems later in life. The spectrum, origin and potential risk factors of these behavioral problems have not been well-defined. METHODS In this retrospective observational study, the influence of culture-proven neonatal sepsis on the behavioral outcome of VLBWI born at a gestational age <32 weeks was analyzed at 5 years of age in a multivariable regression model. Behavior was assessed with the Child Behavior Checklist (CBCL). Neonatal morbidities, socioeconomic status and neurodevelopmental outcome served as covariates in the analysis. RESULTS 312 VLBWI entered the final analysis, of whom 11% had experienced neonatal sepsis. Neonatal sepsis appeared to be a relevant risk factor for both internalizing, i.e., emotional reactivity and anxiety/depression, as well as externalizing behavioral problems, i.e., oppositional and aggressive behavior in this cohort of VLBWI. Low socioeconomic status and male gender were additional statistically significant risk factors for both internalizing and externalizing behavioral problems. No difference in neurocognitive development was observed between the groups. CONCLUSION The study supports the fact that VLBWI are vulnerable to multiple behavioral disorders independent of their cognitive development. In contrast to former assumptions, the results of the study emphasize that not only post-natal environment but also neonatal morbidities, especially neonatal sepsis, have an impact on behavioral outcome of VLBWI at preschool age.
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Affiliation(s)
- Vito Giordano
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics, Comprehensive Center for Paediatrics (CCP), Medical University of Vienna, Vienna, Austria
| | - Sophie Stummer
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics, Comprehensive Center for Paediatrics (CCP), Medical University of Vienna, Vienna, Austria
| | - Claudia Lindtner
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics, Comprehensive Center for Paediatrics (CCP), Medical University of Vienna, Vienna, Austria
| | - Renate Fuiko
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics, Comprehensive Center for Paediatrics (CCP), Medical University of Vienna, Vienna, Austria
| | - Angelika Berger
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics, Comprehensive Center for Paediatrics (CCP), Medical University of Vienna, Vienna, Austria
| | - Karin Pichler
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics, Comprehensive Center for Paediatrics (CCP), Medical University of Vienna, Vienna, Austria
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Carollo A, Bonassi A, Lim M, Gabrieli G, Setoh P, Dimitriou D, Aryadoust V, Esposito G. Developmental disabilities across the world: A scientometric review from 1936 to 2020. RESEARCH IN DEVELOPMENTAL DISABILITIES 2021; 117:104031. [PMID: 34333315 DOI: 10.1016/j.ridd.2021.104031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 06/07/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Developmental disabilities have been largely studied in the past years. Their etiological mechanisms have been underpinned to the interactions between genetic and environmental factors. These factors show variability across the world. Thus, it is important to understand where the set of knowledge obtained on developmental disabilities originates from and whether it is generalizable to low- and middle-income countries. AIMS This study aims to understand the origins of the available literature on developmental disabilities, keeping a focus on parenting, and identify the main trend of research. METHODS AND PROCEDURE A sample of 11,315 publications from 1936 to 2020 were collected from Scopus and a graphical country analysis was conducted. Furthermore, a qualitative approach enabled the clustering of references by keywords into four main areas: "Expression of the disorder", "Physiological Factors", "How it is studied" and "Environmental factors". For each area, a document co-citation analysis (DCA) on CiteSpace software was performed. OUTCOMES AND RESULTS Results highlight the leading role of North America in the study of developmental disabilities. Trends in the literature and the documents' scientific relevance are discussed in details. CONCLUSIONS AND IMPLICATIONS Results demand for investigation in different socio-economical settings to generalize our knowledge. What this paper adds? The current paper tries to provide insight into the origins of the literature on developmental disabilities with a focus on parenting, together with an analysis of the trends of research in the field. The paper consisted of a multi-disciplinary and multi-method review. In fact, the review tried to integrate the analysis of the relation between developmental disabilities with a closer look at the scientific contributions to the field across the world. Specifically, the paper integrates a total of 11,315 papers published on almost a century of research (from 1936 to 2020). An initial qualitative analysis on keywords was combined to a subsequent quantitative approach in order to maximize the comprehension of the impact of almost a century of scientific contributions. Specifically, documents were studied with temporal and structural metrics on a scientometric approach. This allowed the exploration of patterns within the literature available on Scopus in a quantitative way. This method not only assessed the importance of single documents within the network. As a matter of fact, the document co-citation analysis used on CiteSpace software provided insight into the relations existing between multiple documents in the field of research. As a result, the leading role of North America in the literature of developmental disabilities and parenting emerged. This was accompanied by the review of the main trends of research within the existing literature.
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Affiliation(s)
- Alessandro Carollo
- Department of Psychology and Cognitive Science, University of Trento, Rovereto, Italy
| | - Andrea Bonassi
- Department of Psychology and Cognitive Science, University of Trento, Rovereto, Italy; Mobile and Social Computing Lab, Bruno Kessler Foundation, Trento, Italy
| | - Mengyu Lim
- Psychology Program, School of Social Sciences, Nanyang Technological University, Singapore, Singapore
| | - Giulio Gabrieli
- Psychology Program, School of Social Sciences, Nanyang Technological University, Singapore, Singapore
| | - Peipei Setoh
- Psychology Program, School of Social Sciences, Nanyang Technological University, Singapore, Singapore
| | - Dagmara Dimitriou
- Sleep Research and Education Laboratory, UCL Institute of Education, London, United Kingdom
| | - Vahid Aryadoust
- National Institute of Education, Nanyang Technological University, Singapore, Singapore
| | - Gianluca Esposito
- Department of Psychology and Cognitive Science, University of Trento, Rovereto, Italy; Psychology Program, School of Social Sciences, Nanyang Technological University, Singapore, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
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10
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Sjöbom U, Hellström W, Löfqvist C, Nilsson AK, Holmström G, Pupp IH, Ley D, Blennow K, Zetterberg H, Sävman K, Hellström A. Analysis of Brain Injury Biomarker Neurofilament Light and Neurodevelopmental Outcomes and Retinopathy of Prematurity Among Preterm Infants. JAMA Netw Open 2021; 4:e214138. [PMID: 33797551 PMCID: PMC8019094 DOI: 10.1001/jamanetworkopen.2021.4138] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IMPORTANCE Circulating levels of neurofilament light (NfL) and glial fibrillary acidic protein (GFAP) are important in the course of brain injury in adults, but longitudinal postnatal circulating levels in preterm infants have not been investigated. OBJECTIVES To examine postnatal longitudinal serum levels of NfL and GFAP in preterm infants during the first 15 weeks of life and to explore possible associations between these biomarkers, neonatal morbidities, and neurodevelopmental outcomes at 2 years. DESIGN, SETTING, AND PARTICIPANTS This cohort study used data from 3 clinical studies, including 221 infants born before 32 weeks gestational age (GA) from 1999 to 2015; neurodevelopmental outcomes were evaluated in 120 infants. Data were collected at tertiary-level neonatal intensive care units in Gothenburg, Lund, and Uppsala, Sweden. Data analysis was conducted from January to October 2020. EXPOSURE Preterm birth. MAIN OUTCOMES AND MEASURES Serum NfL and GFAP levels, retinopathy of prematurity (ROP), intraventricular hemorrhage, and Bayley Scales of Infant Development II and III at 2 years of age, analyzed by multivariate logistic regression measured by odds ratio (OR), and receiver operating characteristic curve (ROC) analysis. Area under the curve (AUC) was also measured. RESULTS The 221 included infants (108 [48.9%] girls) had a mean (SD) GA at birth of 26.5 (2.1) weeks and a mean (SD) birth weight of 896 (301) grams. NfL levels increased after birth, remaining high during the first 4 weeks of life before declining to continuously low levels by postnatal age 12 weeks (median [range] NfL level at birth: 58.8 [11.5-1371.3] ng/L; 1 wk: 83.5 [14.1-952.2] ng/L; 4 wk: 24.4 [7.0-306.0] ng/L; 12 wk: 9.1 [3.7-57.0] ng/L). In a binary logistic regression model adjusted for GA at birth, birth weight SD score, Apgar status at 5 minutes, and mode of delivery, the NfL AUC at weeks 2 to 4 was independently associated with any ROP (OR, 4.79; 95% CI, 2.17-10.56; P < .001). In an exploratory analysis adjusted for GA at birth and sex, NfL AUC at weeks 2 to 4 was independently associated with unfavorable neurodevelopmental outcomes at 2 years corrected age (OR per 10-unit NfL increase, 1.07; 95% CI, 1.02-1.13; P = .01). Longitudinal GFAP levels were not significantly associated with neonatal morbidity or neurodevelopmental outcome. CONCLUSIONS AND RELEVANCE In this study, high NfL levels during the first weeks of life were associated with ROP and poor neurodevelopmental outcomes at 2 years of age. Associations between NfL and later neurovascular development in infants born prematurely should be investigated further.
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Affiliation(s)
- Ulrika Sjöbom
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Section for Ophthalmology, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - William Hellström
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Chatarina Löfqvist
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Section for Ophthalmology, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anders K. Nilsson
- Section for Ophthalmology, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Gerd Holmström
- Unit of Ophthalmology, Department of Neuroscience, University Hospital, Uppsala, Sweden
| | - Ingrid Hansen Pupp
- Pediatrics, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden
| | - David Ley
- Pediatrics, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden
| | - Kaj Blennow
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, Sweden
| | - Henrik Zetterberg
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, Sweden
- Department of Neurodegenerative Disease, University College of London Institute of Neurology, London, United Kingdom
- UK Dementia Research Institute at University College of London, London, United Kingdom
| | - Karin Sävman
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Region Västra Götaland, Department of Neonatology, The Queen Silvia Children’s Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Ann Hellström
- Section for Ophthalmology, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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11
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Hong HS, Kim SS, Park GY. MRI Findings to Predict Neurodevelopmental Outcomes in Preterm Infants Near Term-Equivalent Age. ACTA ACUST UNITED AC 2020. [DOI: 10.13104/imri.2020.24.1.30] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Hyun Sook Hong
- Department of Radiology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Sung Shin Kim
- Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Ga Young Park
- Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
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12
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Breastfeeding Duration Is Associated with Regional, but Not Global, Differences in White Matter Tracts. Brain Sci 2019; 10:brainsci10010019. [PMID: 31905875 PMCID: PMC7016985 DOI: 10.3390/brainsci10010019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/09/2019] [Accepted: 12/23/2019] [Indexed: 01/19/2023] Open
Abstract
Extended breastfeeding through infancy confers benefits on neurocognitive performance and intelligence tests, though few have examined the biological basis of these effects. To investigate correlations with breastfeeding, we examined the major white matter tracts in 4–8 year-old children using diffusion tensor imaging and volumetric measurements of the corpus callosum. We found a significant correlation between the duration of infant breastfeeding and fractional anisotropy scores in left-lateralized white matter tracts, including the left superior longitudinal fasciculus and left angular bundle, which is indicative of greater intrahemispheric connectivity. However, in contrast to expectations from earlier studies, no correlations were observed with corpus callosum size, and thus no correlations were observed when using such measures of global interhemispheric white matter connectivity development. These findings suggest a complex but significant positive association between breastfeeding duration and white matter connectivity, including in pathways known to be functionally relevant for reading and language development.
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13
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Mayne SL, Pellissier BF, Kershaw KN. Neighborhood Physical Disorder and Adverse Pregnancy Outcomes among Women in Chicago: a Cross-Sectional Analysis of Electronic Health Record Data. J Urban Health 2019; 96:823-834. [PMID: 31728900 PMCID: PMC6904761 DOI: 10.1007/s11524-019-00401-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Adverse pregnancy outcomes increase infants' risk for mortality and future health problems. Neighborhood physical disorder may contribute to adverse pregnancy outcomes by increasing maternal chronic stress. Google Street View technology presents a novel method for assessing neighborhood physical disorder but has not been previously examined in the context of birth outcomes. In this cross-sectional study, trained raters used Google's Street View imagery to virtually audit a randomly sampled block within each Chicago census tract (n = 809) for nine indicators of physical disorder. We used an item-response theory model and spatial interpolation to calculate tract-level neighborhood physical disorder scores across Chicago. We linked these data with geocoded electronic health record data from a large, academic women's hospital in Chicago (2015-2017, n = 14,309 births). We used three-level hierarchical Poisson regression to estimate prevalence ratios for the associations of neighborhood physical disorder with preterm birth (overall and spontaneous), small for gestational age (SGA), and hypertensive disorder of pregnancy (HDP). After adjustment for maternal sociodemographics, multiparity, and season of birth, living in a neighborhood with high physical disorder was associated with higher prevalence of PTB, SGA, and HDP (prevalence ratios and 95% confidence intervals 1.21 (1.06, 1.39) for PTB, 1.13 (1.01, 1.37) for SGA, and 1.23 (1.07, 1.42) for HDP). Adjustment for neighborhood poverty and maternal health conditions (e.g., hypertension, diabetes, asthma, substance use) attenuated associations. Results suggest that an adverse neighborhood physical environment may contribute to adverse pregnancy outcomes. However, future work is needed to disentangle the unique contribution of physical disorder from other characteristics of disadvantaged neighborhoods.
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Affiliation(s)
- Stephanie L Mayne
- Division of General Pediatrics, PolicyLab, and the Center for Pediatric Clinical Effectiveness, Children's Hospital of Philadelphia, Philadelphia, PA, USA. .,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Bernard F Pellissier
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Kiarri N Kershaw
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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14
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Loskutova E, Shah K, Flitcroft ID, Setti A, Butler JS, Nolan Y, Paudel N, Loughman J. Lutein and zeaxanthin: The possible contribution, mechanisms of action and implications of modern dietary intake for cognitive development in children. HRB Open Res 2019. [DOI: 10.12688/hrbopenres.12903.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background:Studies suggest that lutein and zeaxanthin may be important for cognitive development in children, but a comprehensive evidence synthesis is lacking. The purpose of this evidence synthesis was to analyse the available data regarding the role of lutein and zeaxanthin for cognition in children and propose a theoretical basis for future studies.Methods:The PubMed, Scopus, the ISRCTN registry and Cochrane Library databases were searched for studies that evaluated the relationship between lutein and zeaxanthin and cognitive function in children. Reference list and ancestry searches were performed on relevant articles. A total of 543 articles were identified, of which six cross-sectional studies were included.Results:The literature search revealed that the evidence concerning the effect of lutein and zeaxanthin on cognition in children is sparse. However, there is some preliminary evidence indicating a positive association between lutein and zeaxanthin and cognition in childhood.Conclusions:The cross-sectional nature of the few studies available and the lack of RCT data indicates a need for further investigation before any firm conclusions can be drawn.
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15
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Jurcoane A, Daamen M, Keil VC, Scheef L, Bäuml JG, Meng C, Wohlschläger AM, Sorg C, Busch B, Baumann N, Wolke D, Bartmann P, Boecker H, Lüchters G, Marinova M, Hattingen E. Automated quantitative evaluation of brain MRI may be more accurate for discriminating preterm born adults. Eur Radiol 2019; 29:3533-3542. [PMID: 30903339 DOI: 10.1007/s00330-019-06099-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 02/01/2019] [Accepted: 02/11/2019] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate the structural brain abnormalities and their diagnostic accuracy through qualitative and quantitative analysis in term born and very preterm birth or with very low birth weight (VP/VLBW) adults. METHODS We analyzed 3-T MRIs acquired in 2011-2013 from 67 adults (27 term born controls, mean age 26.4 years, 8 females; 40 VP/VLBWs, mean age 26.6 years, 16 females). We compared automatic segmentations of the white matter, deep gray matter and cortical gray matter, manual corpus callosum measurements and visual ratings of the ventricles and white matter with t tests, logistic regression, and receiver operator characteristic (ROC) curves. RESULTS Automatic segmentation correctly classified 84% of cases; visual ratings correctly classified 63%. Quantitative volumetry based on automatic segmentation revealed higher ventricular volume, lower posterior corpus callosum, and deep gray matter volumes in VP/VLBW subjects compared to controls (p < 0.01). Visual rating and manual measurement revealed a thinner corpus callosum in VP/VLBW adults (p = 0.04) and deformed lateral ventricles (p = 0.03) and tendency towards more "dirty" white matter (p = 0.06). Automatic/manual measures combined with visual ratings correctly classified 87% of cases. Stepwise logistic regression identified three independent features that correctly classify 81% of cases: ventricular volume, deep gray matter volume, and white matter aspect. CONCLUSION Enlarged and deformed lateral ventricles, thinner corpus callosum, and "dirty" white matter are prevalent in preterm born adults. Their visual evaluation has low diagnostic accuracy. Automatic volume quantification is more accurate but time consuming. It may be useful to ask for prematurity before initiating further diagnostics in subjects with these alterations. KEY POINTS • Our study confirms prior reports showing that structural brain abnormalities related to preterm birth persist into adulthood. • In the clinical practice, if large and deformed lateral ventricles, small and thin corpus callosum, and "dirty" white matter are visible on MRI, ask for prematurity before considering other diagnoses. • Although prevalent, visual findings have low accuracy; adding automatic segmentation of lateral ventricles and deep gray matter nuclei improves the diagnostic accuracy.
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Affiliation(s)
- Alina Jurcoane
- Functional Neuroimaging Group, Department of Radiology, University Hospital Bonn, Bonn, Germany.
- Section of Neuroradiology, Department of Radiology, University Hospital Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany.
- Department of Neonatology, University Hospital Bonn, Bonn, Germany.
- Institute for Neuroradiology, University Hospital Frankfurt, Frankfurt, Germany.
| | - Marcel Daamen
- Functional Neuroimaging Group, Department of Radiology, University Hospital Bonn, Bonn, Germany
- Department of Neonatology, University Hospital Bonn, Bonn, Germany
| | - Vera C Keil
- Section of Neuroradiology, Department of Radiology, University Hospital Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Lukas Scheef
- Functional Neuroimaging Group, Department of Radiology, University Hospital Bonn, Bonn, Germany
| | - Josef G Bäuml
- Department of Neuroradiology, Klinikum rechts der Isar, Munich, Germany
- TUM-NIC Neuroimaging Center, Technische Universität München, Munich, Germany
| | - Chun Meng
- Department of Neuroradiology, Klinikum rechts der Isar, Munich, Germany
- TUM-NIC Neuroimaging Center, Technische Universität München, Munich, Germany
| | - Afra M Wohlschläger
- Department of Neuroradiology, Klinikum rechts der Isar, Munich, Germany
- TUM-NIC Neuroimaging Center, Technische Universität München, Munich, Germany
| | - Christian Sorg
- Department of Neuroradiology, Klinikum rechts der Isar, Munich, Germany
- TUM-NIC Neuroimaging Center, Technische Universität München, Munich, Germany
- Department of Psychiatry, Klinikum rechts der Isar, Munich, Germany
| | - Barbara Busch
- Department of Neonatology, University Hospital Bonn, Bonn, Germany
| | - Nicole Baumann
- Department of Psychology, University of Warwick, Coventry, UK
| | - Dieter Wolke
- Department of Psychology, University of Warwick, Coventry, UK
- Warwick Medical School, University of Warwick, Coventry, UK
| | - Peter Bartmann
- Department of Neonatology, University Hospital Bonn, Bonn, Germany
| | - Henning Boecker
- Functional Neuroimaging Group, Department of Radiology, University Hospital Bonn, Bonn, Germany
| | - Guido Lüchters
- Center for Development Research, University of Bonn, Bonn, Germany
| | - Milka Marinova
- Section of Neuroradiology, Department of Radiology, University Hospital Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Elke Hattingen
- Section of Neuroradiology, Department of Radiology, University Hospital Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
- Institute for Neuroradiology, University Hospital Frankfurt, Frankfurt, Germany
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16
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Morris-Schaffer K, Sobolewski M, Allen JL, Marvin E, Yee M, Arora M, O'Reilly MA, Cory-Slechta DA. Effect of neonatal hyperoxia followed by concentrated ambient ultrafine particle exposure on cumulative learning in C57Bl/6J mice. Neurotoxicology 2018; 67:234-244. [PMID: 29920326 DOI: 10.1016/j.neuro.2018.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 01/01/2023]
Abstract
Hyperoxia during treatment for prematurity may enhance susceptibility to other risk factors for adverse brain development, such as air pollution exposure, as both of these risk factors have been linked to a variety of adverse neurodevelopmental outcomes. This study investigated the combined effects of neonatal hyperoxia followed by inhalation of concentrated ambient ultrafine particles (CAPS, <100 nm in aerodynamic diameter) on learning. C57BL/6 J mice were birthed into 60% oxygen until postnatal day (PND) 4 and subsequently exposed to filtered air or to CAPS using the Harvard University Concentrated Ambient Particle System (HUCAPS) from PND 4-7 and 10-13. Behavior was assessed on a fixed interval (FI) schedule of reinforcement in which reward is available only after a fixed interval of time elapses, as well as expected reductions in behavior during an extinction procedure when reward was withheld. Both produce highly comparable behavioral performance across species. Performance measures included rate of responding, response accuracy, and temporal control (quarter life). Exposure to hyperoxia or CAPS resulted in lower mean quarter life values, an effect that was further enhanced in males by combined exposure, findings consistent with delayed learning of the FI schedule. Females also initially exhibited greater reductions in quarter life values following the combined exposure to hyperoxia and CAPS and delayed reductions in response rates during extinction. Combined hyperoxia and CAPS produced greater learning deficits than either risk factor alone, consistent with enhanced neurodevelopmental toxicity, findings that could reflect a convergence of both insults on common neurobiological systems. The basis for sex differences in outcome warrants further research. This study highlights the potential for heightened risk of adverse neurodevelopment outcomes in individuals born preterm in regions with higher levels of ultrafine particle (UFP) air pollution, in accord with the multiplicity of risk factors extant in the human environment.
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Affiliation(s)
- Keith Morris-Schaffer
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester NY 14642, United States
| | - Marissa Sobolewski
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester NY 14642, United States
| | - Joshua L Allen
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester NY 14642, United States
| | - Elena Marvin
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester NY 14642, United States
| | - Min Yee
- Department of Pediatrics, University of Rochester Medical Center, Rochester NY, 14642, United States
| | - Manish Arora
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Michael A O'Reilly
- Department of Pediatrics, University of Rochester Medical Center, Rochester NY, 14642, United States
| | - Deborah A Cory-Slechta
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester NY 14642, United States.
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17
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Executive functioning (fully) and processing speed (mostly) mediate intelligence deficits in children born very preterm. INTELLIGENCE 2018. [DOI: 10.1016/j.intell.2018.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Wei FF, Raaijmakers A, Zhang ZY, van Tienoven TP, Huang QF, Yang WY, Thijs L, Struijker-Boudier HA, Verhamme P, Allegaert K, Staessen JA. Association between cognition and the retinal microvasculature in 11-year old children born preterm or at term. Early Hum Dev 2018; 118:1-7. [PMID: 29413869 PMCID: PMC5885985 DOI: 10.1016/j.earlhumdev.2018.01.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 12/07/2017] [Accepted: 01/29/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Retinal microvessels can be visualized non-invasively and mirror the status of the cerebral microvasculature. AIMS To investigate whether in young children born prematurely or at term cognitive performance is related to retinal microvascular traits. STUDY DESIGN, SUBJECTS In 93 prematurely born infants (birth weight < 1000 g) and 87 controls born at term, we measured head circumference (HC) and determined intelligence quotient (IQ) by combining matrix reasoning and spatial span (Wechsler Non-Verbal test, Dutch version) and post-processed retinal photographs using Singapore I Vessel Assessment software (version 3.6). OUTCOME MEASURES, RESULTS Compared with controls, cases had smaller HC (51.7 vs 53.4 cm; p < 0.001), lower IQ (93.9 vs 109.2; p < 0.001), smaller retinal arteriolar (CRAE; 162.7 vs 174.0 μm; p < 0.001) and venular (CRVE; 234.9 vs 242.8 μm; p = 0.003) diameters and CRAE/CRVE ratio (0.69 vs 0.72; p = 0.001). A 1-SD decrease in CRAE was associated with smaller HC (-0.53 cm; p < 0.001) and lower total IQ (-3.74; p < 0.001), matrix reasoning (-1.77; p = 0.004) and spatial span (-2.03; p = 0.002). These associations persisted after adjustment for sex and age and risk factors for cognitive impairment, including blood pressure, body mass index and parental educational attainment. CONCLUSIONS HC, total IQ, matrix reasoning and spatial span decrease with smaller retinal arteriolar diameter. Our findings suggest that maldevelopment of the cerebral microcirculation, as mirrored by the retinal microvasculature, has lasting effects on the growth of the brain and cognitive performance of prematurely born children.
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Affiliation(s)
- Fang-Fei Wei
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Siciences, University of Leuven, Leuven, Belgium
| | - Anke Raaijmakers
- Department of Development and Regeneration, University of Leuven, Belgium
| | - Zhen-Yu Zhang
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Siciences, University of Leuven, Leuven, Belgium
| | | | - Qi-Fang Huang
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Siciences, University of Leuven, Leuven, Belgium
| | - Wen-Yi Yang
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Siciences, University of Leuven, Leuven, Belgium
| | - Lutgarde Thijs
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Siciences, University of Leuven, Leuven, Belgium
| | | | - Peter Verhamme
- Centre for Molecular and Vascular Biology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
| | - Karel Allegaert
- Department of Development and Regeneration, University of Leuven, Belgium,Department of Pediatric Surgery and Intensive Care, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Jan A. Staessen
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Siciences, University of Leuven, Leuven, Belgium,Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands,Corresponding author at: Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Campus Sint Rafaël, Kapucijnenvoer 35, Box 7001, BE-3000 Leuven, Belgium.Studies Coordinating CentreResearch Unit Hypertension and Cardiovascular EpidemiologyKU Leuven Department of Cardiovascular SciencesUniversity of LeuvenCampus Sint Rafaël, Kapucijnenvoer 35Box 7001LeuvenBE-3000Belgium
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19
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Mayne SL, Pool LR, Grobman WA, Kershaw KN. Associations of neighbourhood crime with adverse pregnancy outcomes among women in Chicago: analysis of electronic health records from 2009 to 2013. J Epidemiol Community Health 2018; 72:230-236. [PMID: 29305526 PMCID: PMC6314677 DOI: 10.1136/jech-2017-209801] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 12/07/2017] [Accepted: 12/14/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Adverse pregnancy outcomes are associated with higher cardiovascular disease risk among mothers and future health problems of offspring. Neighbourhood crime may contribute to adverse pregnancy outcomes by increasing chronic stress, yet the association has been relatively understudied. METHODS Electronic health records from 34 383 singleton births at a single hospital in Chicago (2009-2013) were geocoded and linked to 1-year rates of police-recorded crime at the neighbourhood (Chicago community area) level. Crimes included homicide, assault/battery, criminal offences and incivilities. Cross-sectional associations of total neighbourhood crime rates with hypertensive disease of pregnancy (HDP: pre-eclampsia/gestational hypertension), preterm birth (PTB), spontaneous preterm birth (sPTB) and small-for-gestational-age (SGA) birth were assessed using multilevel logistic regression with community-area random intercepts. Models controlled for maternal and infant characteristics and neighbourhood poverty. We then assessed associations between individual crime categories and all outcomes. RESULTS Total neighbourhood crime rates ranged from 11.6 to 303.5 incidents per 1000 persons per year (mean: 61.5, SD: 40.3). A 1-SD higher total neighbourhood crime rate was associated with higher odds of HDP (OR: 1.06, 95% CI 1.00 to 1.13), PTB (OR: 1.09, 95% CI 1.03 to 1.15), sPTB (OR: 1.09, 95% CI 1.03 to 1.16) and SGA (OR: 1.05, 95% CI 1.01 to 1.10) in fully adjusted models. Associations were generally consistent across crime categories, although only assault/battery and incivilities were associated with HDP. CONCLUSIONS Higher neighbourhood crime rates were associated with small but significant increases in the odds of adverse pregnancy outcomes. Interventions that cultivate safer neighbourhoods may be a promising approach for improving pregnancy outcomes.
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Affiliation(s)
- Stephanie L. Mayne
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Lindsay R. Pool
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - William A. Grobman
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Kiarri N. Kershaw
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
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20
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Regional brain volume reduction and cognitive outcomes in preterm children at low risk at 9 years of age. Childs Nerv Syst 2017; 33:1317-1326. [PMID: 28484867 DOI: 10.1007/s00381-017-3421-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 04/19/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE More information is needed on "low-risk" preterm infants' neurological outcome so that they can be included in follow-up programs. A prospective study was performed to examine the regional brain volume changes compared to term children and to assess the relationship between the regional brain volumes to cognitive outcome of the low-risk preterm children at 9 years of age. PATIENTS Subjects comprised 22 preterm children who were determined to be at low risk for neurodevelopmental deficits with a gestational age between 28 and 33 weeks without a major neonatal morbidity in the neonatal period and 24 age-matched term control children term and matched for age, sex, and parental educational and occupational status. METHODS Regional volumetric analysis was performed for cerebellum, hippocampus, and corpus callosum area. Cognitive outcomes of both preterm and control subjects were assessed by Weschler Intelligence Scale for Children Revised (Turkish version), and attention and executive functions were assessed by Wisconsin Card Sorting Test and Stroop Test TBAG version. RESULTS Low-risk preterm children showed regional brain volume reduction in cerebellum, hippocampus, and corpus callosum area and achieved statistical significance when compared with term control. When the groups were compared for all WISC-R subscale scores, preterm children at low risk had significantly lower scores on information, vocabulary, similarities, arithmetics, picture completion, block design, object assembly, and coding compared to children born at term. Preterm and term groups were compared on the Stroop Test for mistakes and corrections made on each card, the time spent for completing each card, and total mistakes and corrections. In the preterm group, we found a positive correlation between regional volumes with IQ, attention, and executive function scores. Additionally, a significant correlation was found between cerebellar volume and attention and executive function scores in the preterm group. CONCLUSION Low-risk preterm children achieve lower scores in neurophysiological tests than children born at term. Preterm birth itself has a significant impact on regional brain volumes and cognitive outcome of children at 9 years of age. It is a risk factor for regional brain volume reductions in preterm children with low risk for neurodevelopmental deficits. The significant interaction between cerebellar volume reduction and executive function and attention may suggest that even in preterm children at low risk can have different trajectories in the growth and development of overall brain structure.
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21
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Biometry of the corpus callosum assessed by 3D ultrasound and its correlation to neurodevelopmental outcome in very low birth weight infants. J Perinatol 2017; 37:448-453. [PMID: 27977014 DOI: 10.1038/jp.2016.231] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 10/10/2016] [Accepted: 11/02/2016] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Several studies have shown a relation between the size of corpus callosum (CC) and outcome in preterm infants. Three-dimensional ultrasound (3D-US) offers new perspectives in cerebral imaging. To establish reference values for biometry of the CC in very low birth weight infants and to correlate these measurements to neurodevelopmental outcome at 5 years of age. STUDY DESIGN Forty-three preterm infants with a gestational age <32 weeks were included. Transfontanellar 3D-US measurements were obtained at nine different timepoints. RESULTS 3D-US-based reference values for size, length, circumference and surface area of the CC could be established. Measurements at term-equivalent age showed a correlation to neurodevelopment outcome. CONCLUSION Reliable biometric data of the CC can be established in preterm infants by 3D-US and correlate with neurodevelopmental outcome.
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Bivoleanu A, Avasiloaiei A, Moscalu M, Stamatin M. The Role of Follow-up in Monitoring the Outcomes of Prematurity in a Cohort of Romanian Infants. Balkan Med J 2017; 34:21-27. [PMID: 28251019 PMCID: PMC5322514 DOI: 10.4274/balkanmedj.2015.1125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 01/25/2016] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND The rate of preterm births in Romania is one of the highest among European countries. However, there is little information regarding the ways in which premature birth affects the outcome in Romanian preterm infants. AIMS To investigate the effects of early developmental intervention after discharge from the hospital on motor and cognitive development in preterm infants. STUDY DESIGN Longitudinal observational study. METHODS We performed the Amiel-Tison neurologic evaluation at discharge and the Bayley Scales of Infant Development from 3 to 24 months. Based on these evaluations, an outcome score was formulated. RESULTS Between 2007 and 2010, 1157 of 2793 premature infants were included into the study. There was a negative correlation between the number of evaluations and the risk of developing neurologic sequelae (p<0.001). The correlation analysis demonstrated a significant association between the final category of risk at the end of the follow up program and the degree of compliance (p<0.01). At 24 months evaluation, there was a correlation between the low gestational age and the risk of developing severe neurologic sequelae (p<0.001). CONCLUSION This study shows the importance of follow up program in decreasing the risk of developing neurologic sequelae in preterm infants.
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Affiliation(s)
- Anca Bivoleanu
- Regional Neonatal Intensive Care Unit, Grigore T. Popa University of Medicine and Pharmacy, Cuza-Voda Clinical Hospital of Obstetrics and Gynaecology, Iasi, Romania
| | - Andreea Avasiloaiei
- Regional Neonatal Intensive Care Unit, Division of Neonatology, Department of Mother and Child Care, Grigore T. Popa University of Medicine and Pharmacy, Cuza-Voda Clinical Hospital of Obstetrics and Gynaecology, Iasi, Romania
| | - Mihaela Moscalu
- Department of Preventive Medicine and Interdisciplinary Sciences, Grigore T. Popa University of Medicine and Pharmacy, Iasi, Romania
| | - Maria Stamatin
- Regional Neonatal Intensive Care Unit, Division of Neonatology, Department of Mother and Child Care, Grigore T. Popa University of Medicine and Pharmacy, Cuza-Voda Clinical Hospital of Obstetrics and Gynaecology, Iasi, Romania
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Kim DY, Park HK, Kim NS, Hwang SJ, Lee HJ. Neonatal diffusion tensor brain imaging predicts later motor outcome in preterm neonates with white matter abnormalities. Ital J Pediatr 2016; 42:104. [PMID: 27906083 PMCID: PMC5134238 DOI: 10.1186/s13052-016-0309-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 11/12/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND White matter (WM) abnormalities associated with prematurity are one of the most important causes of neurological disability that involves spastic motor deficits in preterm newborns. This study aimed to evaluate regional microstructural changes in diffusion tensor imaging (DTI) associated with WM abnormalities. METHODS We prospectively studied extremely low birth weight (ELBW; <1000 g) preterm infants who were admitted to the Neonatal Intensive Care Unit of Hanyang University Hospital between February 2011 and February 2014. WM abnormalities were assessed with conventional magnetic resonance (MR) imaging and DTI near term-equivalent age before discharge. Region-of-interests (ROIs) measurements were performed to examine the regional distribution of fractional anisotropy (FA) values. RESULTS Thirty-two out of 72 ELBW infants underwent conventional MR imaging and DTI at term-equivalent age. Ten of these infants developed WM abnormalities associated with prematurity. Five of ten of those with WM abnormalities developed cerebral palsy (CP). DTI in the WM abnormalities with CP showed a significant reduction of mean FA in the genu of the corpus callosum (p = 0.022), the ipsilateral posterior limb of the internal capsule (p = 0.019), and the ipsilateral centrum semiovale (p = 0.012) compared to normal WM and WM abnormalities without CP. In infants having WM abnormalities with CP, early FA values in neonatal DTI revealed abnormalities of the WM regions prior to the manifestation of hemiparesis. CONCLUSIONS DTI performed at term equivalent age shows different FA values in WM regions among infants with or without WM abnormalities associated with prematurity and/or CP. Low FA values of ROIs in DTI are related with later development of spastic CP in preterm infants with WM abnormalities.
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Affiliation(s)
- Do-Yeon Kim
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, South Korea
| | - Hyun-Kyung Park
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, South Korea
| | - Nam-Su Kim
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, South Korea
| | - Se-Jin Hwang
- Division of Neuroanatomy, Department of Anatomy and Histology, Hanyang University College of Medicine, Seoul, South Korea
| | - Hyun Ju Lee
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, South Korea.
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24
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Jiang ZD, Ping LL. Reduced wave amplitudes of brainstem auditory response in high-risk babies born at 28-32week gestation. Brain Dev 2016; 38:885-892. [PMID: 27287666 DOI: 10.1016/j.braindev.2016.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/11/2016] [Accepted: 05/25/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To examine brainstem auditory electrophysiology in high-risk babies born at 28-32week gestation by analysing the amplitudes of wave components in maximum length sequence brainstem auditory evoked response (MLS BAER). METHODS 94 preterm babies, ranging in gestation 28-32weeks, with perinatal problems (high-risk) were recruited. The amplitudes of MLS BAER wave components were studied at term age (37-42weeks postconceptional age). RESULTS Compared with normal term controls, the amplitude in the high-risk preterm babies was significantly smaller at the highest click rate 910/s for wave I (p<0.01), at all 91-910/s for wave III (all p<0.01) and at 455 and 910/s (p<0.05 and 0.01) for wave V. Compared with age-matched low-risk preterm controls, the amplitude was significantly smaller at 455 and 910/s for wave I (p<0.05 and 0.05), 91-910/s for wave III (p<0.05-0.001), and 227-910/s (p<0.05 and 0.01) for wave V. No differences in the V/I and V/III amplitude ratios were found between the high-risk preterm babies and the controls. CONCLUSIONS The amplitudes of MLS BAER wave components, mainly more central components, were reduced in the high-risk preterm babies born at 28-32week gestation. Electrophysiological activity of the brainstem auditory neuron in such babies is depressed, mainly attributed to or related to the associated perinatal problems.
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Affiliation(s)
- Ze Dong Jiang
- Children's Hospital, Shanghai Medical University, Shanghai, China.
| | - Li Li Ping
- Children's Hospital, Shanghai Medical University, Shanghai, China
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25
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Mooney-Leber SM, Brummelte S. Neonatal pain and reduced maternal care: Early-life stressors interacting to impact brain and behavioral development. Neuroscience 2016; 342:21-36. [PMID: 27167085 DOI: 10.1016/j.neuroscience.2016.05.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 03/22/2016] [Accepted: 05/02/2016] [Indexed: 12/21/2022]
Abstract
Advances in neonatal intensive care units (NICUs) have drastically increased the survival chances of preterm infants. However, preterm infants are still exposed to a wide range of stressors during their stay in the NICU, which include painful procedures and reduced maternal contact. The activation of the hypothalamic-pituitary-adrenal (HPA) axis, in response to these stressors during this critical period of brain development, has been associated with many acute and long-term adverse biobehavioral outcomes. Recent research has shown that Kangaroo care, a non-pharmacological analgesic based on increased skin-to-skin contact between the neonate and the mother, negates the adverse outcomes associated with neonatal pain and reduced maternal care, however the biological mechanism remains widely unknown. This review summarizes findings from both human and rodent literature investigating neonatal pain and reduced maternal care independently, primarily focusing on the role of the HPA axis and biobehavioral outcomes. The physiological and positive outcomes of Kangaroo care will also be discussed in terms of how dampening of the HPA axis response to neonatal pain and increased maternal care may account for positive outcomes associated with Kangaroo care.
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Affiliation(s)
- Sean M Mooney-Leber
- Department of Psychology, Wayne State University, Detroit, MI, United States
| | - Susanne Brummelte
- Department of Psychology, Wayne State University, Detroit, MI, United States.
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26
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Montagna A, Nosarti C. Socio-Emotional Development Following Very Preterm Birth: Pathways to Psychopathology. Front Psychol 2016; 7:80. [PMID: 26903895 PMCID: PMC4751757 DOI: 10.3389/fpsyg.2016.00080] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 01/14/2016] [Indexed: 01/07/2023] Open
Abstract
Very preterm birth (VPT; < 32 weeks of gestation) has been associated with an increased risk to develop cognitive and socio-emotional problems, as well as with increased vulnerability to psychiatric disorder, both with childhood and adult onset. Socio-emotional impairments that have been described in VPT individuals include diminished social competence and self-esteem, emotional dysregulation, shyness and timidity. However, the etiology of socio-emotional problems in VPT samples and their underlying mechanisms are far from understood. To date, research has focused on the investigation of both biological and environmental risk factors associated with socio-emotional problems, including structural and functional alterations in brain areas involved in processing emotions and social stimuli, perinatal stress and pain and parenting strategies. Considering the complex interplay of the aforementioned variables, the review attempts to elucidate the mechanisms underlying the association between very preterm birth, socio-emotional vulnerability and psychopathology. After a comprehensive overview of the socio-emotional impairments associated with VPT birth, three main models of socio-emotional development are presented and discussed. These focus on biological vulnerability, early life adversities and parenting, respectively. To conclude, a developmental framework is used to consider different pathways linking VPT birth to psychopathology, taking into account the interaction between medical, biological, and psychosocial factors.
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Affiliation(s)
- Anita Montagna
- Department of Perinatal Imaging and Health, Centre for the Developing Brain, St. Thomas' Hospital, King's College LondonLondon, UK
| | - Chiara Nosarti
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College LondonLondon, UK
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27
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Paquette N, Vannasing P, Tremblay J, Lefebvre F, Roy MS, McKerral M, Lepore F, Lassonde M, Gallagher A. Early electrophysiological markers of atypical language processing in prematurely born infants. Neuropsychologia 2015; 79:21-32. [DOI: 10.1016/j.neuropsychologia.2015.10.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 09/10/2015] [Accepted: 10/12/2015] [Indexed: 11/16/2022]
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28
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Shi J, Wang Y, Lao Y, Ceschin R, Mi L, Nelson MD, Panigrahy A, Leporé N. Abnormal Ventricular Development in Preterm Neonates with Visually Normal MRIs. PROCEEDINGS OF SPIE--THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 2015; 9681. [PMID: 31178622 DOI: 10.1117/12.2213297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Children born preterm are at risk for a wide range of neurocognitive and neurobehavioral disorders. Some of these may stem from early brain abnormalities at the neonatal age. Hence, a precise characterization of neonatal neuroanatomy may help inform treatment strategies. In particular, the ventricles are often enlarged in neurocognitive disorders, due to atrophy of surrounding tissues. Here we present a new pipeline for the detection of morphological and relative pose differences in the ventricles of premature neonates compared to controls. To this end, we use a new hyperbolic Ricci flow based mapping of the ventricular surfaces of each subjects to the Poincaré disk. Resulting surfaces are then registered to a template, and a between group comparison is performed using mulitvariate tensor-based morphometry. We also statistically compare the relative pose of the ventricles within the brain between the two groups, by performing a Procrustes alignment between each subject's ventricles and an average shape. For both types of analyses, differences were found in the left ventricles between the two groups.
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Affiliation(s)
- Jie Shi
- School of Computing, Informatics, and Decision Systems Engineering, Arizona State University, Tempe, AZ, USA
| | - Yalin Wang
- School of Computing, Informatics, and Decision Systems Engineering, Arizona State University, Tempe, AZ, USA
| | - Yi Lao
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA.,CIBORG Laboratory, Department of Radiology, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Rafael Ceschin
- Department of Radiology, Children's Hospital of Pittsburgh UPMC, Pittsburgh, PA, USA
| | - Liang Mi
- School of Computing, Informatics, and Decision Systems Engineering, Arizona State University, Tempe, AZ, USA
| | - Marvin D Nelson
- Department of Radiology, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Department of Radiology, University of Southern California, CA, USA
| | - Ashok Panigrahy
- Department of Radiology, Children's Hospital of Pittsburgh UPMC, Pittsburgh, PA, USA.,Department of Radiology, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Natasha Leporé
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA.,CIBORG Laboratory, Department of Radiology, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Department of Radiology, University of Southern California, CA, USA
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29
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Thompson DK, Lee KJ, van Bijnen L, Leemans A, Pascoe L, Scratch SE, Cheong J, Egan GF, Inder TE, Doyle LW, Anderson PJ. Accelerated corpus callosum development in prematurity predicts improved outcome. Hum Brain Mapp 2015; 36:3733-48. [PMID: 26108187 DOI: 10.1002/hbm.22874] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 06/01/2015] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVES To determine: (1) whether corpus callosum (CC) size and microstructure at 7 years of age or their change from infancy to 7 years differed between very preterm (VP) and full-term (FT) children; (2) perinatal predictors of CC size and microstructure at 7 years; and (3) associations between CC measures at 7 years or trajectories from infancy to 7 years and neurodevelopmental outcomes. EXPERIMENTAL DESIGN One hundred and thirty-six VP (gestational age [GA] <30 weeks and/or birth weight <1,250 g) and 33 FT children had usable magnetic resonance images at 7 years of age, and of these, 76 VP and 16 FT infants had usable data at term equivalent age. The CC was traced and divided into six sub-regions. Fractional anisotropy, mean, axial, radial diffusivity and volume were measured from tractography. Perinatal data were collected, and neurodevelopmental tests administered at 7 years' corrected age. PRINCIPAL OBSERVATIONS VP children had smaller posterior CC regions, higher diffusivity and lower fractional anisotropy compared with FT 7-year-olds. Reduction in diffusivity over time occurred faster in VP than FT children (P ≤ 0.002). Perinatal brain abnormality and earlier GA were associated with CC abnormalities. Microstructural abnormalities at 7 years or slower development of the CC were associated with motor dysfunction, poorer mathematics and visual perception. CONCLUSIONS This study is the first to demonstrate an accelerated trajectory of CC white matter diffusion following VP birth, associated with improved neurodevelopmental functioning. Findings suggest there is a window of opportunity for neurorestorative intervention to improve outcomes. Hum Brain Mapp 36:3733-3748, 2015. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Deanne K Thompson
- Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.,Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Katherine J Lee
- Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Loeka van Bijnen
- Murdoch Childrens Research Institute, Melbourne, Victoria, Australia
| | - Alexander Leemans
- Imaging Science Institute, University Medical Center, Utrecht, Netherlands
| | - Leona Pascoe
- Murdoch Childrens Research Institute, Melbourne, Victoria, Australia
| | - Shannon E Scratch
- Murdoch Childrens Research Institute, Melbourne, Victoria, Australia
| | - Jeanie Cheong
- Royal Women's Hospital, Melbourne, Victoria, Australia.,Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne, Victoria, Australia
| | - Gary F Egan
- Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia.,Biomedical Imaging, Monash University, Melbourne, Victoria, Australia
| | - Terrie E Inder
- Brigham and Women's Hospital, Boston, Massachusetts.,Department of Pediatrics, Washington University in St Louis Medical School, St Louis, Missouri
| | - Lex W Doyle
- Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.,Royal Women's Hospital, Melbourne, Victoria, Australia.,Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne, Victoria, Australia
| | - Peter J Anderson
- Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Department of Pediatrics, Washington University in St Louis Medical School, St Louis, Missouri
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30
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Chu C, Lagercrantz H, Forssberg H, Nagy Z. Investigating the use of support vector machine classification on structural brain images of preterm-born teenagers as a biological marker. PLoS One 2015; 10:e0123108. [PMID: 25837791 PMCID: PMC4383582 DOI: 10.1371/journal.pone.0123108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 02/27/2015] [Indexed: 12/03/2022] Open
Abstract
Preterm birth has been shown to induce an altered developmental trajectory of brain structure and function. With the aid support vector machine (SVM) classification methods we aimed to investigate whether MRI data, collected in adolescence, could be used to predict whether an individual had been born preterm or at term. To this end we collected T1-weighted anatomical MRI data from 143 individuals (69 controls, mean age 14.6y). The inclusion criteria for those born preterm were birth weight ≤ 1500g and gestational age < 37w. A linear SVM was trained on the grey matter segment of MR images in two different ways. First, all the individuals were used for training and classification was performed by the leave-one-out method, yielding 93% correct classification (sensitivity = 0.905, specificity = 0.942). Separately, a random half of the available data were used for training twice and each time the other, unseen, half of the data was classified, resulting 86% and 91% accurate classifications. Both gestational age (R = -0.24, p<0.04) and birth weight (R = -0.51, p < 0.001) correlated with the distance to decision boundary within the group of individuals born preterm. Statistically significant correlations were also found between IQ (R = -0.30, p < 0.001) and the distance to decision boundary. Those born small for gestational age did not form a separate subgroup in these analyses. The high rate of correct classification by the SVM motivates further investigation. The long-term goal is to automatically and non-invasively predict the outcome of preterm-born individuals on an individual basis using as early a scan as possible.
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Affiliation(s)
- Carlton Chu
- DeepMind Technologies Ltd., London, United Kingdom
- Wellcome Trust Centre for Neuroimaging, UCL Institute of Neurology, London, United Kingdom
| | - Hugo Lagercrantz
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Hans Forssberg
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Zoltan Nagy
- Laboratory for Social and Neural Systems Research, University of Zurich, Zurich, Switzerland
- Wellcome Trust Centre for Neuroimaging, UCL Institute of Neurology, London, United Kingdom
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31
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Chang CL, Hung KL, Yang YC, Ho CS, Chiu NC. Corpus callosum and motor development in healthy term infants. Pediatr Neurol 2015; 52:192-7. [PMID: 25497120 DOI: 10.1016/j.pediatrneurol.2014.10.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 10/08/2014] [Accepted: 10/09/2014] [Indexed: 11/27/2022]
Abstract
BACKGROUND Corpus callosum atrophy has been associated with cognitive and motor deficits in elderly people. However, the role of the corpus callosum in infant development is unclear. The aim of this study was to assess the impact of corpus callosum size on motor development in infants. METHODS We investigated cerebral ultrasonograms performed on healthy infants aged 4 to 6 months. The correlation between the development of rolling over and corpus callosum size was calculated for determining odds ratios. Covariates, including gestational age, sex, age in months, and head circumference were tested using logistic regression. RESULTS We investigated 244 cerebral ultrasonograms performed on term infants from 2009 to 2011. The percentage of rolling over development in the examined infants increased with age (47.8%, 78.4%, and 97.5% at ages 4, 5, and 6 months, respectively). There was no significant difference in the development of rolling over between male (67.9%) and female (73.6%) children or among different gestational age groups. After the other covariates in the logistic model were adjusted, only age and corpus callosum size (length and thickness) were significantly associated with the development of rolling over: 3.86 times the odds (confidence interval, 2.1 to 7.0) for age in months, 1.14 times the odds (confidence interval, 1.0 to 1.3) for corpus callosum length, and 3.92 times the odds (confidence interval, 1.6 to 9.6) for corpus callosum thickness. CONCLUSIONS Corpus callosum size is positively associated with the development of rolling over in healthy term infants, independent of the gestational age, sex, age, and head circumference.
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Affiliation(s)
- Chaw-Liang Chang
- Department of Pediatrics, Cathay General Hospital, Hsinchu, Taiwan; Center for Medical Education and Research, Cathay General Hospital, Hsinchu, Taiwan
| | - Kun-Long Hung
- Department of Pediatrics, Cathay General Hospital, Taipei, Taiwan; School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Yi-Chen Yang
- Center for Medical Education and Research, Cathay General Hospital, Hsinchu, Taiwan
| | - Che-Sheng Ho
- Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan; Mackay Junior College of Medicine, Nursing, and Management, New Taipei City, Taiwan
| | - Nan-Chang Chiu
- Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan; Mackay Junior College of Medicine, Nursing, and Management, New Taipei City, Taiwan.
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32
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Micali N, Kothari R, Nam KW, Gioroukou E, Walshe M, Allin M, Rifkin L, Murray RM, Nosarti C. Eating disorder psychopathology, brain structure, neuropsychological correlates and risk mechanisms in very preterm young adults. EUROPEAN EATING DISORDERS REVIEW 2015; 23:147-55. [PMID: 25645448 DOI: 10.1002/erv.2346] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 12/19/2014] [Accepted: 12/27/2014] [Indexed: 12/11/2022]
Abstract
This study investigates the prevalence of eating disorder (ED) psychopathology, neuropsychological function, structural brain correlates and risk mechanisms in a prospective cohort of very preterm (VPT) young adults. We assessed ED psychopathology and neuropsychological correlates in 143 cohort individuals born at <33 weeks of gestation. Structural brain correlates and risk factors at birth, in childhood and adolescence, were investigated using prospectively collected data throughout childhood/adolescence. VPT-born individuals had high levels of ED psychopathology at age 21 years. Executive function did not correlate with ED symptomatology. VPT adults presenting with ED psychopathology had smaller grey matter volume at age 14/15 years in the left posterior cerebellum and smaller white matter volume in the fusiform gyrus bilaterally, compared with VPT adults with no ED psychopathology. Caesarean delivery predicted engaging in compensatory behaviours, and severe eating difficulty at age 14 years predicted ED symptomatology in young adulthood. VPT individuals are at risk for ED symptomatology, with evidence of associated structural alterations in posterior brain regions. Further prospective studies are needed to clarify the pathways that lead from perinatal/obstetric complications to ED and relevant neurobiological mechanisms. © 2015 The Authors. European Eating Disorders Review published by John Wiley &Sons, Ltd.
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Affiliation(s)
- Nadia Micali
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, London, UK
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33
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Kalpakidou AK, Allin MPG, Walshe M, Giampietro V, McGuire PK, Rifkin L, Murray RM, Nosarti C. Functional neuroanatomy of executive function after neonatal brain injury in adults who were born very preterm. PLoS One 2014; 9:e113975. [PMID: 25438043 PMCID: PMC4250191 DOI: 10.1371/journal.pone.0113975] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 11/01/2014] [Indexed: 02/01/2023] Open
Abstract
Individuals who were born very preterm (VPT; <33 gestational weeks) are at risk of experiencing deficits in tasks involving executive function in childhood and beyond. In addition, the type and severity of neonatal brain injury associated with very preterm birth may exert differential effects on executive functioning by altering its neuroanatomical substrates. Here we addressed this question by investigating with functional magnetic resonance imaging (fMRI) the haemodynamic response during executive-type processing using a phonological verbal fluency and a working memory task in VPT-born young adults who had experienced differing degrees of neonatal brain injury. 12 VPT individuals with a history of periventricular haemorrhage and ventricular dilatation (PVH+VD), 17 VPT individuals with a history of uncomplicated periventricular haemorrhage (UPVH), 13 VPT individuals with no history of neonatal brain injury and 17 controls received an MRI scan whilst completing a verbal fluency task with two cognitive loads (‘easy’ and ‘hard’ letters). Two groups of VPT individuals (PVH+VD; n = 10, UPVH; n = 8) performed an n-back task with three cognitive loads (1-, 2-, 3-back). Results demonstrated that VPT individuals displayed hyperactivation in frontal, temporal, and parietal cortices and in caudate nucleus, insula and thalamus compared to controls, as demands of the verbal fluency task increased, regardless of type of neonatal brain injury. On the other hand, during the n-back task and as working memory load increased, the PVH+VD group showed less engagement of the frontal cortex than the UPVH group. In conclusion, this study suggests that the functional neuroanatomy of different executive-type processes is altered following VPT birth and that neural activation associated with specific aspects of executive function (i.e., working memory) may be particularly sensitive to the extent of neonatal brain injury.
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Affiliation(s)
- Anastasia K. Kalpakidou
- Department of Psychosis Studies, Institute of Psychiatry, King's Health Partners, King's College London, London, United Kingdom
- * E-mail:
| | - Matthew P. G. Allin
- Department of Psychosis Studies, Institute of Psychiatry, King's Health Partners, King's College London, London, United Kingdom
| | - Muriel Walshe
- Department of Psychosis Studies, Institute of Psychiatry, King's Health Partners, King's College London, London, United Kingdom
| | - Vincent Giampietro
- Department of Neuroimaging, Institute of Psychiatry, King's Health Partners, King's College London, London, United Kingdom
| | - Philip K. McGuire
- Department of Psychosis Studies, Institute of Psychiatry, King's Health Partners, King's College London, London, United Kingdom
| | - Larry Rifkin
- Department of Psychosis Studies, Institute of Psychiatry, King's Health Partners, King's College London, London, United Kingdom
| | - Robin M. Murray
- Department of Psychosis Studies, Institute of Psychiatry, King's Health Partners, King's College London, London, United Kingdom
| | - Chiara Nosarti
- Department of Psychosis Studies, Institute of Psychiatry, King's Health Partners, King's College London, London, United Kingdom
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Oluwole AA, Adegbesan-Omilabu MA, Okunade KS. Preterm delivery and low maternal serum cholesterol level: Any correlation? Niger Med J 2014; 55:406-10. [PMID: 25298606 PMCID: PMC4178338 DOI: 10.4103/0300-1652.140381] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The study assessed whether low maternal serum cholesterol during early pregnancy is associated with preterm delivery. PATIENTS AND METHODS It was a prospective observational cohort study involving pregnant women at gestational age of 14-20 weeks over a period of 12 months. Blood samples were obtained to measure total serum cholesterol concentrations and the sera were then analysed enzymatically by the cholesterol oxidase: p-aminophenazone (CHOD PAP) method. RESULTS The study showed an incidence of 5.0% for preterm delivery in the low risk study patients. Preterm birth was 4.83-times more common with low total maternal cholesterol than with midrange total cholesterol (11.8% versus 2.2%, P = 0.024). CONCLUSION Low maternal serum cholesterol (hypocholesterolaemia) is associated with preterm delivery. Optimal maternal serum cholesterol during pregnancy may have merit, therefore pregnant women should be encouraged to follow a healthy, balanced diet.
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Affiliation(s)
- Ayodeji A Oluwole
- Department of Obstetrics and Gynaecology, Lagos University Teaching Hospital, Lagos, Nigeria
| | | | - Kehinde S Okunade
- Department of Obstetrics and Gynaecology, Lagos University Teaching Hospital, Lagos, Nigeria
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35
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Muller M, Sigurdsson S, Kjartansson O, Jonsson PV, Garcia M, von Bonsdorff MB, Gunnarsdottir I, Thorsdottir I, Harris TB, van Buchem M, Gudnason V, Launer LJ. Birth size and brain function 75 years later. Pediatrics 2014; 134:761-70. [PMID: 25180277 PMCID: PMC4179101 DOI: 10.1542/peds.2014-1108] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND There are several lines of evidence pointing to fetal and other early origins of diseases of the aging brain, but there are no data directly addressing the hypotheses in an older population. We investigated the association of fetal size to late-age measures of brain structure and function in a large cohort of older men and women and explored the modifying effect of education on these associations. METHODS Within the AGES (Age Gene/Environment Susceptibility)-Reykjavik population-based cohort (born between 1907 and 1935), archived birth records were abstracted for 1254 men and women who ∼75 years later underwent an examination that included brain MRI and extensive cognitive assessment. RESULTS Adjustment for intracranial volume, demographic and medical history characteristics, and lower Ponderal index at birth (per kg/m(3)), an indicator of third-trimester fetal wasting, was significantly associated with smaller volumes of total brain and white matter; βs (95% confidence intervals) were -1.0 (-1.9 to -0.0) and -0.5 (-1.0 to -0.0) mL. Furthermore, lower Ponderal index was associated with slower processing speed and reduced executive functioning but only in those with low education (β [95% confidence interval]: -0.136 [-0.235 to -0.036] and -0.077 [-0.153 to -0.001]). CONCLUSIONS This first study of its kind provides clinical measures suggesting that smaller birth size, as an indicator of a suboptimal intrauterine environment, is associated with late-life alterations in brain tissue volume and function. In addition, it shows that the effects of a suboptimal intrauterine environment on late-life cognitive function were present only in those with lower educational levels.
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Affiliation(s)
- Majon Muller
- Laboratory of Epidemiology and Population Sciences, Intramural Research Program, National Institute on Aging, Bethesda, Maryland;,Departments of Gerontology and Geriatrics, and
| | | | - Olafur Kjartansson
- The Icelandic Heart Association, Kopavogur, Iceland;,Departments of Neurology and Radiology, and
| | - Palmi V. Jonsson
- The Icelandic Heart Association, Kopavogur, Iceland;,Department of Geriatrics, and
| | - Melissa Garcia
- Laboratory of Epidemiology and Population Sciences, Intramural Research Program, National Institute on Aging, Bethesda, Maryland
| | - Mikaela B. von Bonsdorff
- Laboratory of Epidemiology and Population Sciences, Intramural Research Program, National Institute on Aging, Bethesda, Maryland;,Department of Health Sciences, Gerontology Research Centre, University of Jyväskylä, Jyväskylä, Finland
| | | | - Inga Thorsdottir
- Unit for Nutrition Research, Landspitali University Hospital, Reykjavik, Iceland
| | - Tamara B. Harris
- Laboratory of Epidemiology and Population Sciences, Intramural Research Program, National Institute on Aging, Bethesda, Maryland
| | - Mark van Buchem
- Radiology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Lenore J. Launer
- Laboratory of Epidemiology and Population Sciences, Intramural Research Program, National Institute on Aging, Bethesda, Maryland
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Liu F, Cao S, Liu J, Du Z, Guo Z, Ren C. Ultrasound measurement of the corpus callosum and neural development of premature infants. Neural Regen Res 2014; 8:2432-40. [PMID: 25206553 PMCID: PMC4146107 DOI: 10.3969/j.issn.1673-5374.2013.26.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 07/20/2013] [Indexed: 11/18/2022] Open
Abstract
Length and thickness of 152 corpus callosa were measured in neonates within 24 hours of birth. Using ultrasonic diagnostic equipment with a neonatal brain-specific probe, corpus callosum length and thickness of the genu, body, and splenium were measured on the standard mid-sagittal plane, and the anteroposterior diameter of the genu was measured in the coronal plane. Results showed that corpus callosum length as well as thickness of the genu and splenium increased with tional age and birth weight, while other measures did not. These three factors on the standard mid-sagittal plane are therefore likely to be suitable for real-time evaluation of corpus callosum velopment in premature infants using cranial ultrasound. Further analysis revealed that thickness of the body and splenium and the anteroposterior diameter of the genu were greater in male infants than in female infants, suggesting that there are sex differences in corpus callosum size during the neonatal period. A second set of measurements were taken from 40 premature infants whose gestational age was 34 weeks or less. Corpus callosum measurements were corrected to a gestational age of 40 weeks, and infants were grouped for analysis depending on the outcome of a neonatal behavioral neurological assessment. Compared with infants with a normal neurological assessment, corpus callosum length and genu and splenium thicknesses were less in those with abnormalities, indicating that corpus callosum growth in premature infants is associated with neurobehavioral development during the early extrauterine stage.
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Affiliation(s)
- Fang Liu
- Department of Pediatrics, NICU, Bethune International Peace Hospital, Shijiazhuang 050082, Hebei Province, China
| | - Shikao Cao
- Department of Ultrasound, Bethune International Peace Hospital, Shijiazhuang 050082, Hebei Province, China
| | - Jiaoran Liu
- Department of Ultrasound, Bethune International Peace Hospital, Shijiazhuang 050082, Hebei Province, China
| | - Zhifang Du
- Department of Ultrasound, Bethune International Peace Hospital, Shijiazhuang 050082, Hebei Province, China
| | - Zhimei Guo
- Department of Ultrasound, Bethune International Peace Hospital, Shijiazhuang 050082, Hebei Province, China
| | - Changjun Ren
- Department of Pediatrics, NICU, the First Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei Province, China
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Abstract
Long-term follow-up of infants born prematurely is necessary to determine neurodevelopmental outcomes, particularly with the expansion of interest from major disabilities to high prevalence/low severity dysfunctions. Models of pathogenesis include changes due to developmental disruptions and to injury, the magnitude and type of change influenced by the infant's age, and central nervous system recovery and reorganization. Alterations in neurogenesis, migration, myelination, cell death, and synaptogenesis occur even in the absence of insult. Despite increased knowledge regarding these processes, the functional significance of brain abnormalities is unclear. Because of methodologic problems in follow-up studies, it is difficult to characterize outcome definitively. Nonetheless, an acceptable degree of agreement across studies is found with regard to specific neurodevelopmental outcomes: motor/neurologic function, visuomotor integrative skills, IQ, academic achievement, language, executive function, and attention-deficit hyperactivity disorder/behavioral issues. In general, children born prematurely have more problems in these areas than do their normal birth weight counterparts. Suggestions for improved analyses and clarification of outcomes include use of cluster analysis, structural equation modeling, growth curve analysis, developmental epidemiologic approaches, and better control of background variables using risk indexes and factor scores. Better assessment techniques measuring functions documented to be at higher risk of problems are discussed.
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Jiang ZD, Chen C. Impaired neural conduction in the auditory brainstem of high-risk very preterm infants. Clin Neurophysiol 2014; 125:1231-7. [DOI: 10.1016/j.clinph.2013.11.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 11/12/2013] [Accepted: 11/19/2013] [Indexed: 10/26/2022]
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Aukland SM, Elgen IB, Odberg MD, Chong WK, Eide GE, Rosendahl K. Ventricular dilatation in ex-prematures: only confined to the occipital region? MRI-based normative standards for 19-year-old ex-prematures without major handicaps. Acta Radiol 2014; 55:470-7. [PMID: 23939381 DOI: 10.1177/0284185113497476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Premature birth may be associated with white matter injury later developing with widening of the ventricles. However, population-based data on normal ventricular size by age are sparse, making the evaluation of possible ventricular dilatation difficult. PURPOSE To present the linear measurements of the ventricular system, to compare these to subjectively assessed ventricular size, and to examine differences in ventricular size between ex-prematures and controls. MATERIAL AND METHODS Eligible survivors (n = 113) from the initial birth cohort (n = 217, born in 1986-1988, birth weight <2000 g) underwent MRI during 2006-2007. One hundred and three were ex-premature and included in the study. The ventricular size was subjectively judged by a pediatric neuroradiologist, and scored as normal, mildly, moderately, or severely dilated. Objective measurements, including width and depth of the frontal and occipital horns, were performed in a blinded fashion, by a pediatric radiologist. RESULTS The normative standards for different parts of the ventricular system in ex-premature young adults varied considerably. We found significant associations between the objective measurements and the subjectively classification of ventricular dilatation. Ex-prematures had smaller heads than those born term (control group). After adjustment for head circumference, there were no significant group differences regarding the frontal horns, but the occipital horns were proportionately wider among ex-prematures. CONCLUSION Young adults born prematurely, with a birth weight <2000 g, do not have larger lateral ventricles than healthy controls born term, even after correcting for a smaller head size. However, they do have larger occipital horns, confirming previous studies and strengthening our belief of a specific vulnerability of the occipital region.
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Affiliation(s)
- Stein M Aukland
- Department of Radiology, Haukeland University Hospital, Bergen, Norway
- Institute of Surgical Sciences, Section for Radiology, University of Bergen, Bergen, Norway
| | - Irene B Elgen
- Institute of Clinical Medicine, Section for Paediatrics, University of Bergen, Bergen, Norway
| | - Morten D Odberg
- Institute of Clinical Medicine, Section for Paediatrics, University of Bergen, Bergen, Norway
| | - W Kling Chong
- Department of Radiology, Great Ormond Street Hospital for Children, London, UK
| | - Geir E Eide
- Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway
- Department of Public Health and Primary Health Care, University of Bergen, Norway
| | - Karen Rosendahl
- Department of Radiology, Haukeland University Hospital, Bergen, Norway
- Institute of Surgical Sciences, Section for Radiology, University of Bergen, Bergen, Norway
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40
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Abstract
White matter injury and hemorrhage are common findings in extremely preterm infants. Large hemorrhages and extensive cystic lesions are identified with cranial ultrasound. MRI, which is more sensitive, is especially useful in the identification of small intraventricular hemorrhage; cerebellar hemorrhage; punctate lesion in the white matter and cerebellum; and diffuse, noncystic white matter injury. Imaging sequences such as diffusion-weighted, diffusion tensor, and susceptibility weighted imaging may improve recognition and prediction of outcome. These techniques improve understanding of the underlying pathophysiology of white matter injury and its effects on brain development and neurodevelopmental outcome.
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Clark CAC, Fang H, Espy KA, Filipek PA, Juranek J, Bangert B, Hack M, Taylor HG. Relation of neural structure to persistently low academic achievement: a longitudinal study of children with differing birth weights. Neuropsychology 2013; 27:364-377. [PMID: 23688218 DOI: 10.1037/a0032273] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE This study examined the relation of cerebral tissue reductions associated with VLBW to patterns of growth in core academic domains. METHOD Children born <750 g, 750 to 1,499 g, or >2,500 g completed measures of calculation, mathematical problem solving, and word decoding at time points spanning middle childhood and adolescence. K. A. Espy, H. Fang, D. Charak, N. M. Minich, and H. G. Taylor (2009, Growth mixture modeling of academic achievement in children of varying birth weight risk, Neuropsychology, Vol. 23, pp. 460-474) used growth mixture modeling to identify two growth trajectories (clusters) for each academic domain: an average achievement trajectory and a persistently low trajectory. In this study, 97 of the same participants underwent magnetic resonance imaging (MRI) in late adolescence, and cerebral tissue volumes were used to predict the probability of low growth cluster membership for each domain. RESULTS Adjusting for whole brain volume (wbv), each 1-cm(3) reduction in caudate volume was associated with a 1.7- to 2.1-fold increase in the odds of low cluster membership for each domain. Each 1-mm(2) decrease in corpus callosum surface area increased these odds approximately 1.02-fold. Reduced cerebellar white matter volume was associated specifically with low calculation and decoding growth, and reduced cerebral white matter volume was associated with low calculation growth. Findings were similar when analyses were confined to the VLBW groups. CONCLUSIONS Reduced volume of structures involved in connectivity, executive attention, and motor control may contribute to heterogeneous academic trajectories among children with VLBW.
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Affiliation(s)
| | - Hua Fang
- Department of Quantitative Health Sciences, University of Massachusetts Medical School
| | | | - Pauline A Filipek
- Department of Pediatrics, University of Texas Health Sciences Center at Houston
| | - Jenifer Juranek
- Department of Pediatrics, University of Texas Health Sciences Center at Houston
| | - Barbara Bangert
- Departments of Pediatrics and Radiology, Case Western Reserve University
| | - Maureen Hack
- Departments of Pediatrics and Radiology, Case Western Reserve University
| | - H Gerry Taylor
- Departments of Pediatrics and Radiology, Case Western Reserve University
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Bauer G, Płonka-Półtorak E, Bauer R, Unterberger I, Kuchukhidze G. Corpus callosum and epilepsies. JOURNAL OF EPILEPTOLOGY 2013. [DOI: 10.1515/joepi-2015-0008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
SUMMARYIntroduction.Corpus callosum (CC) is the largest forebrain commissure. Structural anomalies and accompanying clinical symptoms are not in the focus of neurologists, epileptologists or neurosurgeons.Aim and method.Anatomy, embryological development, normal functions, structural abnormalities, additional malformations, clinical symptoms and seizure disorders with CC anomalies are reviewed from the literature.Review.The detection of callosal anomalies increased rapidly with widespread use of brain imaging methods. Agenesis or dysgenesis of corpus callosum (AgCC) might be considered an accidental finding. Epileptic seizures occur in up to 89% of patients with AgCC. The causal relationship correctly is questioned. However, additional causative malformations of midline and/or telencephalic structures can be demonstrated in most seizure patients. The interruption of bilateral spread of seizure activities acts as the concept for callosotomy as epilepsy surgery. Indications are drug-resistant generalized, diffuse, or multifocal epilepsies. A resectable seizure onset zone should be excluded. Most treated patients are diagnosed as Lennox-Gastaut or Lennox-like syndrome.Conclusions.In cases with callosal abnormalities and clinical symptoms additional malformations are frequently observed, especially with seizure disorders. Callosotomy is the most effective option against drop attacks. The method probably is underused. After callosotomy a circumscript seizure focus might be unveiled and a second step of resective epilepsy surgery can be successful.
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Groeschel S, Tournier JD, Northam GB, Baldeweg T, Wyatt J, Vollmer B, Connelly A. Identification and interpretation of microstructural abnormalities in motor pathways in adolescents born preterm. Neuroimage 2013; 87:209-19. [PMID: 24185027 DOI: 10.1016/j.neuroimage.2013.10.034] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 10/09/2013] [Accepted: 10/21/2013] [Indexed: 12/11/2022] Open
Abstract
There has been extensive interest in assessing the long-term effects of preterm birth on brain white matter microstructure using diffusion MRI. Our aim in this study is to explore diffusion MRI differences between adolescents born preterm and term born controls, with a specific interest in characterising how such differences are manifested in white matter regions containing predominantly single or crossing fibre populations. Probabilistic high angular resolution tractography together with large deformation spatial normalisation were used to objectively investigate diffusion tensor parameters at regular intervals along fibre tracts of 45 adolescents born before 33 weeks of gestation and 30 term-born typically developing adolescents. Diffusion parameters were significantly different between preterms and controls at several levels along the cortico-spinal, thalamo-cortical and transcallosal pathways. Within the predominantly single fibre regions of the corpus callosum and internal capsule, in the preterms mean diffusivity (MD) was found to be increased while fractional anisotropy (FA) was decreased compared to controls. In contrast, however, where these pathways traversed the centrum semiovale, FA and MD were both significantly increased. The major contributor to reduced FA in preterms in predominantly single fibre regions was the increased radial eigenvalue (i.e. increased radial diffusivity). In predominantly crossing-fibre regions, the tensor eigenvalues are not meaningful, and the observed increase in FA is likely to be due to a decrease in anisotropy in one of the contributing fibre bundles. Similar differences (although less pronounced) were observed after excluding preterms with radiological signs of preterm brain injury from the sample. In summary, white matter microstructure was found to be altered in motor pathways in adolescents born preterm. Disruption of white matter (WM) microstructure in a single fibre region with resulting higher radial diffusivity leads to lower FA, whereas selective disruption of one fibre population in a crossing fibre region is observed to lead to higher FA. These findings challenge the common simplistic interpretation of FA as a measure of WM tract integrity.
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Affiliation(s)
| | - J-Donald Tournier
- Florey Institute of Neuroscience and Mental Health, Melbourne, Australia
| | | | | | | | - Brigitte Vollmer
- Karolinska Institutet, Stockholm, Sweden; University of Southampton, Southampton, UK
| | - Alan Connelly
- Florey Institute of Neuroscience and Mental Health, Melbourne, Australia
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Kok R, Lucassen N, Bakermans-Kranenburg MJ, van IJzendoorn MH, Ghassabian A, Roza SJ, Govaert P, Jaddoe VW, Hofman A, Verhulst FC, Tiemeier H. Parenting, corpus callosum, and executive function in preschool children. Child Neuropsychol 2013; 20:583-606. [DOI: 10.1080/09297049.2013.832741] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Skranes J, Løhaugen GC, Martinussen M, Håberg A, Brubakk AM, Dale AM. Cortical surface area and IQ in very-low-birth-weight (VLBW) young adults. Cortex 2013; 49:2264-71. [DOI: 10.1016/j.cortex.2013.06.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 03/26/2013] [Accepted: 06/07/2013] [Indexed: 10/26/2022]
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Griffiths ST, Elgen IB, Chong WK, Odberg MD, Markestad T, Neto E, Aukland SM. Cerebral magnetic resonance imaging findings in children born extremely preterm, very preterm, and at term. Pediatr Neurol 2013; 49:113-8. [PMID: 23859857 DOI: 10.1016/j.pediatrneurol.2013.03.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 02/25/2013] [Accepted: 03/10/2013] [Indexed: 11/18/2022]
Abstract
BACKGROUND The aim of this study was to compare findings on cerebral MRI scans of infants born extremely preterm (i.e., gestation < 28 weeks, very preterm; gestation 28-31 weeks) and at term. METHODS MRI scans obtained in a cohort of 29 extremely preterm children at 11 years, 51 very preterm young adults at 19 years, and respective term-born controls were scored according to presence and degree of MRI pathology. RESULTS MRI pathology was found in 76% of the extremely preterm children vs 31% of their controls (odds ratio 4.3; 95% confidence interval, 1.5-137.5) and in 55% of the very preterm group vs 19% of their controls (odds ratio 5.2; 95% confidence interval, 2.5-10.9). The distribution of moderate and severe pathology did not differ among the groups. CONCLUSIONS The extremely preterm, very preterm, and term subjects shared the same morphological pathology, revealing no specific preterm MRI pattern, but both premature cohorts had higher frequencies. Differences were mainly limited to mild pathology. Whether MRI lesions were more common in the extremely preterm than in the very preterm group is uncertain as the difference in frequency was similar in the two control groups, suggesting a lack of objective criteria for differentiating mild pathology from normality or that MRI scans normally differ at 11 and 19 years of age.
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Pavlova MA, Krägeloh-Mann I. Limitations on the developing preterm brain: impact of periventricular white matter lesions on brain connectivity and cognition. ACTA ACUST UNITED AC 2013; 136:998-1011. [PMID: 23550112 DOI: 10.1093/brain/aws334] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Brain lesions to the white matter in peritrigonal regions, periventricular leukomalacia, in children who were born prematurely represent an important model for studying limitations on brain development. The lesional pattern is of early origin and bilateral, that constrains the compensatory potential of the brain. We suggest that (i) topography and severity of periventricular lesions may have a long-term predictive value for cognitive and social capabilities in preterm birth survivors; and (ii) periventricular lesions may impact cognitive and social functions by affecting brain connectivity, and thereby, the dissociable neural networks underpinning these functions. A further pathway to explore is the relationship between cerebral palsy and cognitive outcome. Restrictions caused by motor disability may affect active exploration of surrounding and social participation that may in turn differentially impinge on cognitive development and social cognition. As an outline for future research, we underscore sex differences, as the sex of a preterm newborn may shape the mechanisms by which the developing brain is affected.
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Affiliation(s)
- Marina A Pavlova
- Department of Paediatric Neurology and Developmental Medicine, Children's Hospital, Medical School, Eberhard Karls University of Tübingen, Hoppe-Seyler-Strasse 1, 72076 Tübingen, Germany.
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Johnson S, Wolke D. Behavioural outcomes and psychopathology during adolescence. Early Hum Dev 2013; 89:199-207. [PMID: 23455605 DOI: 10.1016/j.earlhumdev.2013.01.014] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 01/29/2013] [Indexed: 11/25/2022]
Abstract
Preterm birth is associated with a high risk of residual neurodevelopmental disability and cognitive impairment. These problems are closely associated with psychiatric disorders and thus it is unsurprising that preterm birth also confers high risk for poor long term mental health. The risk associated with preterm birth is not a general one, but appears to be specific to symptoms and disorders associated with anxiety, inattention and social and communication problems, and manifest in a significantly higher prevalence of emotional disorders, ADHD and Autism. Adolescence is a key period for mental health and studies have shown that problems evident in childhood persist over this time and are more stable amongst preterm individuals than term-born peers. There is also modest evidence for an increased prevalence of psychotic symptoms in preterm adolescents. The high prevalence of psychiatric disorders, present in around 25% of preterm adolescents, requires long term screening and intervention.
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Affiliation(s)
- Samantha Johnson
- Department of Health Sciences, University of Leicester, 22-28 Princess Road West, Leicester, UK.
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Association between maternal periapical lesions and brain inflammation in rat pups. Arch Oral Biol 2013; 58:266-71. [DOI: 10.1016/j.archoralbio.2012.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 11/01/2012] [Accepted: 11/14/2012] [Indexed: 11/24/2022]
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Grunewaldt KH, Løhaugen GCC, Austeng D, Brubakk AM, Skranes J. Working memory training improves cognitive function in VLBW preschoolers. Pediatrics 2013; 131:e747-54. [PMID: 23400616 DOI: 10.1542/peds.2012-1965] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Preterm born children perform poorer than term peers on tests of attention and executive functions including working memory tests. Our aim was to evaluate if preterm born preschoolers with very low birth weight (VLBW) would benefit from a computerized working memory training program and if the training would have a generalizing effect on memory, learning, attention, behavior, and anxiety. METHODS A prospective intervention study with a stepped wedge design where 20 VLBW preschoolers aged 5 to 6 years participated. The children trained with the Cogmed JM program for 10 to 15 minutes a day, 5 days a week over a 5-week period. Extensive neuropsychological assessment and parental questionnaires regarding behavior and anxiety were performed before and 4 weeks after intervention. RESULTS The children improved significantly on trained (mean Start Index 42.1 [SD 6.3]), mean Max Index 60.6 [SD 5.7]), and nontrained working memory tasks (Spatial Span backward; 2.3 [before] to 3.6 [after training] [confidence interval {CI} -2.2 to -0.4] and Spatial Span total score; 6.4-8.3 [CI -3.7 to -0.1]). A generalization effect was found on auditory attention (49.6-58.2 [CI -15.5 to -1.6]), phonological awareness (9.3-12.6 [CI -5.2 to -1.4]), visual (memory for faces 20.0-24.9 [CI -7.4 to -2.5]), as well as verbal memory (narrative memory; 12.9-17.5 [CI -7.1 to -2.0], and sentence repetition 15.7-17.7 [CI -3.3 to -0.7]). CONCLUSION This study shows that VLBW preschoolers benefit from a computerized working memory training program. We speculate that such training before starting school may prevent or reduce cognitive problems that impact educational achievement.
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Affiliation(s)
- Kristine Hermansen Grunewaldt
- Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway.
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