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https://www.readbyqxmd.com/read/29234600/prediction-of-cognitive-and-motor-development-in-preterm-children-using-exhaustive-feature-selection-and-cross-validation-of-near-term-white-matter-microstructure
#1
Kornél Schadl, Rachel Vassar, Katelyn Cahill-Rowley, Kristin W Yeom, David K Stevenson, Jessica Rose
Background: Advanced neuroimaging and computational methods offer opportunities for more accurate prognosis. We hypothesized that near-term regional white matter (WM) microstructure, assessed on diffusion tensor imaging (DTI), using exhaustive feature selection with cross-validation would predict neurodevelopment in preterm children. Methods: Near-term MRI and DTI obtained at 36.6 ± 1.8 weeks postmenstrual age in 66 very-low-birth-weight preterm neonates were assessed...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29228390/altered-brain-morphology-after-focal-radiation-reveals-impact-of-off-target-effects-implications-for-white-matter-development-and-neurogenesis
#2
Kiran G Beera, Yu-Qing Li, Jun Dazai, James Stewart, Shannon Egan, Mashal Ahmed, C Shun Wong, David A Jaffray, Brian J Nieman
Background: Children with brain tumors treated with cranial radiation therapy (RT) often exhibit cognitive late effects, commonly associated with reduced white matter (WM) volume and decreased neurogenesis. The impact of radiation damage in particular regions or tissues on brain development as a whole has not been elucidated. Methods: We delivered whole-brain or focal radiation (8 Gy single dose) to infant mice. Focal treatments targeted white matter (anterior commissure), neuronal (olfactory bulbs), or neurogenic (subventricular zone) regions...
November 2, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29224179/antidiabetic-polypill-improves-central-pathology-and-cognitive-impairment-in-a-mixed-model-of-alzheimer-s-disease-and-type-2-diabetes
#3
Carmen Infante-Garcia, Juan Jose Ramos-Rodriguez, Carmen Hierro-Bujalance, Esperanza Ortegon, Eleanor Pickett, Rosemary Jackson, Fernando Hernandez-Pacho, Tara Spires-Jones, Monica Garcia-Alloza
Type 2 diabetes (T2D) is an important risk factor to suffer dementia, being Alzheimer's disease (AD) as the most common form. Both AD and T2D are closely related to aging and with a growing elderly population it might be of relevance to explore new therapeutic approaches that may slow or prevent central complications associated with metabolic disorders. Therefore, we propose the use of the antidiabetic polypill (PP), a pharmacological cocktail, commonly used by T2D patients that include metformin, aspirin, simvastatin, and an angiotensin-converting enzyme inhibitor...
December 9, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/29208736/pathophysiological-and-behavioral-deficits-in-developing-mice-following-rotational-acceleration-deceleration-traumatic-brain-injury
#4
Guoxiang Wang, Yi Ping Zhang, Zhongwen Gao, Lisa B E Shields, Fang Li, Tianci Chu, Huayi Lv, Thomas Moriarty, Xiao-Ming Xu, Xiaoyu Yang, Christopher B Shields, Jun Cai
Abusive head trauma (AHT) is the leading cause of death from trauma in infants and young children. An AHT animal model was developed on 12-day-old mice subjected to 90° head extension-flexion sagittal shaking repeated 30, 60, 80, and 100 times. The mortality and time until return of consciousness were dependent on the number of repeats and severity of the injury. Under 60 times of repeated head shakings, the pups demonstrated apnea and/or bradycardia immediately after injury. Acute oxygen desaturation was observed by pulse oximetry during respiratory and cardiac suppression...
November 30, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29201824/assessment-of-preterm-infants-using-the-bayley-iii-scales-in-korea
#5
Sung Ho Ahn, Soo A Kim
Objective: To assess the well-being of preterm newborns using the Bayley-III scales in a Korean-based population, and to evaluate the perinatal risk factors influencing developmental outcome. Methods: Using the Bayley-III scales, we assessed 120 preterm infants who were referred for evaluation of neurodevelopmental performance. We subdivided them into an extremely preterm group (n=18) and a very/moderate to late preterm group (n=102). Bayley-III mean scores and the rate of infants showing a delay were compared for both groups...
October 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29197979/genetic-differences-in-the-aryl-hydrocarbon-receptor-and-cyp1a2-affect-sensitivity-to-developmental-polychlorinated-biphenyl-exposure-in-mice-relevance-to-studies-of-human-neurological-disorders
#6
Kelsey Klinefelter, Molly Kromme Hooven, Chloe Bates, Breann T Colter, Alexandra Dailey, Smitha Krishnan Infante, Izabela Kania-Korwel, Hans-Joachim Lehmler, Alejandro López-Juárez, Clare Pickering Ludwig, Christine Perdan Curran
Polychlorinated biphenyls (PCBs) are persistent organic pollutants that remain a human health concern with newly discovered sources of contamination and ongoing bioaccumulation and biomagnification. Children exposed during early brain development are at highest risk of neurological deficits, but highly exposed adults reportedly have an increased risk of Parkinson's disease. Our previous studies found allelic differences in the aryl hydrocarbon receptor and cytochrome P450 1A2 (CYP1A2) affect sensitivity to developmental PCB exposure, resulting in cognitive deficits and motor dysfunction...
December 2, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/29194585/complex-interactions-between-hypoxia-ischemia-and-inflammation-in-preterm-brain-injury
#7
REVIEW
Robert Galinsky, Christopher A Lear, Justin M Dean, Guido Wassink, Simerdeep K Dhillon, Mhoyra Fraser, Joanne O Davidson, Laura Bennet, Alistair J Gunn
Children surviving preterm birth have a high risk of disability, particularly cognitive and learning problems. There is extensive clinical and experimental evidence that disability is now primarily related to dysmaturation of white and gray matter, defined by failure of oligodendrocyte maturation and neuronal dendritic arborization, rather than cell death alone. The etiology of this dysmaturation is multifactorial, with contributions from hypoxia-ischemia, infection/inflammation and barotrauma. Intriguingly, these factors can interact to both increase and decrease damage...
December 1, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29189166/oxytocin-and-eating-disorders-a-narrative-review-on-emerging-findings-and-perspectives
#8
Katrin Giel, Stephan Zipfel, Manfred Hallschmid
The hypothalamic neuropeptide oxytocin regulates reproductive behavior and mother-infant interaction, and conclusive studies in humans indicate that oxytocin is also a potent modulator of psychosocial function. Pilot experiments have yielded first evidence that this neuropeptide moreover influences eating behavior. Brain administration of oxytocin in animals with normal weight, but also with diet-induced or genetically induced obesity, attenuates food intake and reduces body weight. In normal-weight and obese individuals, acute intranasal oxytocin delivery curbs calorie intake from main dishes and snacks...
November 28, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/29186388/walking-gross-motor-development-and-brain-functional-connectivity-in-infants-and-toddlers
#9
Natasha Marrus, Adam T Eggebrecht, Alexandre Todorov, Jed T Elison, Jason J Wolff, Lyndsey Cole, Wei Gao, Juhi Pandey, Mark D Shen, Meghan R Swanson, Robert W Emerson, Cheryl L Klohr, Chloe M Adams, Annette M Estes, Lonnie Zwaigenbaum, Kelly N Botteron, Robert C McKinstry, John N Constantino, Alan C Evans, Heather C Hazlett, Stephen R Dager, Sarah J Paterson, Robert T Schultz, Martin A Styner, Guido Gerig, Bradley L Schlaggar, Joseph Piven, John R Pruett
Infant gross motor development is vital to adaptive function and predictive of both cognitive outcomes and neurodevelopmental disorders. However, little is known about neural systems underlying the emergence of walking and general gross motor abilities. Using resting state fcMRI, we identified functional brain networks associated with walking and gross motor scores in a mixed cross-sectional and longitudinal cohort of infants at high and low risk for autism spectrum disorder, who represent a dimensionally distributed range of motor function...
November 23, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29158073/methodological-challenges-in-the-comparison-of-infant-fmri-across-age-groups
#10
REVIEW
Rhodri Cusack, Olivia McCuaig, Annika C Linke
Functional MRI (fMRI) in infants is rapidly growing and providing fundamental insights into the origins of brain functions. Comparing brain development at different ages is particularly powerful, but there are a number of methodological challenges that must be addressed if confounds are to be avoided. With development, brains change in composition in a way that alters their tissue contrast, and in size, shape, and gyrification, requiring careful image processing strategies and age-specific standard templates...
November 11, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29157996/longitudinal-interactions-between-brain-and-cognitive-measures-on-reading-development-from-6-months-to-14-years
#11
Kaisa Lohvansuu, Jarmo A Hämäläinen, Leena Ervast, Heikki Lyytinen, Paavo H T Leppänen
Dyslexia is a neurobiological disorder impairing learning to read. Brain responses of infants at genetic risk for dyslexia are abnormal already at birth, and associations from infant speech perception to preschool cognitive skills and reading in early school years have been documented, but there are no studies showing predicting power until adolescence. Here we show that in at-risk infants, brain activation to pseudowords at left hemisphere predicts 44% of reading speed at 14 years, and even improves the prediction after taking into account neurocognitive preschool measures of letter naming, phonology, and verbal short-term memory...
November 17, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29156647/effects-of-nutritional-interventions-during-pregnancy-on-infant-and-child-cognitive-outcomes-a-systematic-review-and-meta-analysis
#12
REVIEW
Rachael M Taylor, Shanna M Fealy, Alessandra Bisquera, Roger Smith, Clare E Collins, Tiffany-Jane Evans, Alexis J Hure
BACKGROUND: Epidemiological studies have demonstrated that folate, iodine and iron intake during pregnancy impacts on foetal brain development and cognitive function. However, in human studies, the relationship with other dietary nutrients is less clear. OBJECTIVE: This systematic review aims to critically appraise the current literature and meta-analyses results from nutritional interventions during pregnancy that aimed to optimise infant and child cognitive outcomes...
November 20, 2017: Nutrients
https://www.readbyqxmd.com/read/29146572/cognitive-trajectories-from-infancy-to-early-adulthood-following-birth-before-26-weeks-of-gestation-a-prospective-population-based-cohort-study
#13
Louise Linsell, Samantha Johnson, Dieter Wolke, Helen O'Reilly, Joan K Morris, Jennifer J Kurinczuk, Neil Marlow
OBJECTIVE: To determine the trajectory of cognitive test scores from infancy to adulthood in individuals born extremely preterm compared with term-born individuals. DESIGN: A prospective, population-based cohort study. SETTING: 276 maternity units in the UK and Ireland. PATIENTS: 315 surviving infants born less than 26 completed weeks of gestation recruited at birth in 1995 and 160 term-born classroom controls recruited at age 6...
November 16, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/29131075/the-cerebellar-cerebral-microstructure-is-disrupted-at-multiple-sites-in-very-preterm-infants-with-cerebellar-haemorrhage
#14
Vera Neubauer, Tanja Djurdjevic, Elke Griesmaier, Marlene Biermayr, Elke Ruth Gizewski, Ursula Kiechl-Kohlendorfer
BACKGROUND: Recent advances in magnetic resonance imaging (MRI) techniques have prompted reconsideration of the anatomical correlates of adverse outcomes in preterm infants. The importance of the contribution made by the cerebellum is now increasingly appreciated. The effect of cerebellar haemorrhage (CBH) on the microstructure of the cerebellar-cerebral circuit is largely unexplored. OBJECTIVES: To investigate the effect of CBH on the microstructure of cerebellar-cerebral connections in preterm infants aged <32 gestational weeks...
November 9, 2017: Neonatology
https://www.readbyqxmd.com/read/29098066/longitudinal-multi-scale-mapping-of-infant-cortical-folding-using-spherical-wavelets
#15
Dingna Duan, Islem Rekik, Shunren Xia, Weili Lin, John H Gilmore, Dinggang Shen, Gang Li
The dynamic development of brain cognition and motor functions during infancy are highly associated with the rapid changes of the convoluted cortical folding. However, little is known about how the cortical folding, which can be characterized on different scales, develops in the first two postnatal years. In this paper, we propose a curvature-based multi-scale method using spherical wavelets to map the complicated longitudinal changes of cortical folding during infancy. Specifically, we first decompose the cortical curvature map, which encodes the cortical folding information, into multiple spatial-frequency scales, and then measure the scale-specific wavelet power at 6 different scales as quantitative indices of cortical folding degree...
April 2017: Proceedings of the IEEE International Symposium on Biomedical Imaging: from Nano to Macro
https://www.readbyqxmd.com/read/29096216/rhythmic-eeg-patterns-in-extremely-preterm-infants-classification-and-association-with-brain-injury-and-outcome
#16
Lauren C Weeke, Inge M van Ooijen, Floris Groenendaal, Alexander C van Huffelen, Ingrid C van Haastert, Carolien van Stam, Manon J Benders, Mona C Toet, Lena Hellström-Westas, Linda S de Vries
OBJECTIVE: Classify rhythmic EEG patterns in extremely preterm infants and relate these to brain injury and outcome. METHODS: Retrospective analysis of 77 infants born <28 weeks gestational age (GA) who had a 2-channel EEG during the first 72 h after birth. Patterns detected by the BrainZ seizure detection algorithm were categorized: ictal discharges, periodic epileptiform discharges (PEDs) and other waveforms. Brain injury was assessed with sequential cranial ultrasound (cUS) and MRI at term-equivalent age...
October 3, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29089437/transient-hypoxemia-chronically-disrupts-maturation-of-preterm-fetal-ovine-subplate-neuron-arborization-and-activity
#17
Evelyn McClendon, Daniel C Shaver, Kiera Degener-O'Brien, Xi Gong, Thuan Nguyen, Anna Hoerder-Suabedissen, Zoltán Molnár, Claudia Mohr, Ben D Richardson, David J Rossi, Stephen A Back
Preterm infants are at risk for a broad spectrum of neurobehavioral disabilities associated with diffuse disturbances in cortical growth and development. During brain development, subplate neurons (SPNs) are a largely transient population that serves a critical role to establish functional cortical circuits. By dynamically integrating into developing cortical circuits they assist in consolidation of intra and extracortical circuits. Although SPNs reside in close proximity to cerebral white matter, which is particularly vulnerable to oxidative stress, the susceptibility of SPNs remains controversial...
October 31, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29069607/prenatal-methamphetamine-exposure-is-associated-with-reduced-subcortical-volumes-in-neonates
#18
Fleur L Warton, Ernesta M Meintjes, Christopher M R Warton, Christopher D Molteno, Nadine M Lindinger, R Colin Carter, Lilla Zöllei, Pia Wintermark, Joseph L Jacobson, Andre van der Kouwe, Sandra W Jacobson
OBJECTIVES: Prenatal exposure to methamphetamine is associated with a range of neuropsychological, behavioural and cognitive deficits. A small number of imaging studies suggests that these may be mediated by neurostructural changes, including reduced volumes of specific brain regions. This study investigated potential volumetric changes in the brains of neonates with prenatal methamphetamine exposure. To our knowledge no previous studies have examined methamphetamine effects on regional brain volumes at this age...
October 22, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/29062978/interneuronopathies-and-their-role-in-early-life-epilepsies-and-neurodevelopmental-disorders
#19
Anna-Maria Katsarou, Solomon L Moshé, Aristea S Galanopoulou
GABAergic interneurons control the neural circuitry and network activity in the brain. The advances in genetics have identified genes that control the development, maturation and integration of GABAergic interneurons and implicated them in the pathogenesis of epileptic encephalopathies or neurodevelopmental disorders. For example, mutations of the Aristaless-Related homeobox X-linked gene (ARX) may result in defective GABAergic interneuronal migration in infants with epileptic encephalopathies like West syndrome (WS), Ohtahara syndrome or X-linked lissencephaly with abnormal genitalia (XLAG)...
September 2017: Epilepsia Open
https://www.readbyqxmd.com/read/29035302/oligoarticular-hemarthroses-and-osteomyelitis-complicating-pasteurella-meningitis-in-an-infant
#20
Charles Nathan Nessle, Allison K Black, Justin Farge, Victoria A Statler
A 5-month-old previously healthy female presented with a one-week history of fever and increased fussiness. Her presentation revealed an ill-appearing infant with an exam and cerebrospinal fluid (CSF) studies concerning bacterial meningitis; CSF cultures grew Pasteurella multocida. Additionally, brain magnetic resonance imaging (MRI) demonstrated cervical osteomyelitis. Despite multiple days of antibiotic therapy, she remained febrile with continued pain; MRI showed oligoarticular effusions, and aspiration of these joints yielded bloody aspirates...
October 16, 2017: Children
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