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https://www.readbyqxmd.com/read/28549636/amplitude-integrated-electroencephalography-improves-the-identification-of-infants-with-encephalopathy-for-therapeutic-hypothermia-and-predicts-neurodevelopmental-outcomes-at-2-years-of-age
#1
Janne Helen Skranes, Gro Løhaugen, Eva Margrethe Schumacher, Damjan Osredkar, Andres Server, Frances Mary Cowan, Tom Stiris, Drude Fugelseth, Marianne Thoresen
OBJECTIVES: To examine whether using an amplitude-integrated electroencephalography (aEEG) severity pattern as an entry criterion for therapeutic hypothermia better selects infants with hypoxic-ischemic encephalopathy and to assess the time-to-normal trace for aEEG and magnetic resonance imaging (MRI) lesion load as 24-month outcome predictors. STUDY DESIGN: Forty-seven infants meeting Norwegian therapeutic hypothermia guidelines were enrolled prospectively. Eight-channel EEG/aEEG was recorded from 6 hours until after rewarming, and read after discharge...
May 23, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28546087/region-specific-oligodendrocyte-transcription-factor-expression-in-a-model-of-neonatal-hypoxic-injury
#2
Bethann M Affeldt, Andre Obenaus, Jonathan Chan, Andrea C Pardo
White matter injury (WMI) of prematurity is associated with a spectrum of neurological disorders ranging from mild cognitive and behavioral deficits to cerebral palsy. Translational studies have implicated impaired oligodendrocyte development after hypoxia as the primary cause of WMI, but the underlying mechanisms remain poorly understood. The goal of this study was to identify alterations in the expression of oligodendrocyte precursor cell transcription factors in a mouse model of transient mild global hypoxia...
May 22, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28536205/severe-retinopathy-of-prematurity-predicts-delayed-white-matter-maturation-and-poorer-neurodevelopment
#3
Torin J A Glass, Vann Chau, Jane Gardiner, Justin Foong, Jillian Vinall, Jill G Zwicker, Ruth E Grunau, Anne Synnes, Kenneth J Poskitt, Steven P Miller
OBJECTIVE: To determine whether severe retinopathy of prematurity (ROP) is associated with (1) abnormal white matter maturation and (2) neurodevelopmental outcomes at 18 months' corrected age (CA) compared with neonates without severe ROP. DESIGN: We conducted a prospective longitudinal cohort of extremely preterm neonates born 24-28 weeks' gestational age recruited between 2006 and 2013 with brain MRIs obtained both early in life and at term-equivalent age. Severe ROP was defined as ROP treated with retinal laser photocoagulation...
May 23, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28526882/prediction-of-cognitive-and-motor-outcome-of-preterm-infants-based-on-automatic-quantitative-descriptors-from-neonatal-mr-brain-images
#4
Pim Moeskops, Ivana Išgum, Kristin Keunen, Nathalie H P Claessens, Ingrid C van Haastert, Floris Groenendaal, Linda S de Vries, Max A Viergever, Manon J N L Benders
This study investigates the predictive ability of automatic quantitative brain MRI descriptors for the identification of infants with low cognitive and/or motor outcome at 2-3 years chronological age. MR brain images of 173 patients were acquired at 30 weeks postmenstrual age (PMA) (n = 86) and 40 weeks PMA (n = 153) between 2008 and 2013. Eight tissue volumes and measures of cortical morphology were automatically computed. A support vector machine classifier was employed to identify infants who exhibit low cognitive and/or motor outcome (<85) at 2-3 years chronological age as assessed by the Bayley scales...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522659/validation-of-an-mri-brain-injury-and-growth-scoring-system-in-very-preterm-infants-scanned-at-29-to-35-week-postmenstrual-age
#5
J M George, S Fiori, J Fripp, X K Pannek, X J Bursle, X R X Moldrich, X A Guzzetta, X A Coulthard, X R S Ware, X S E Rose, X P B Colditz, X R N Boyd
BACKGROUND AND PURPOSE: The diagnostic and prognostic potential of brain MR imaging before term-equivalent age is limited until valid MR imaging scoring systems are available. This study aimed to validate an MR imaging scoring system of brain injury and impaired growth for use at 29 to 35 weeks postmenstrual age in infants born at <31 weeks gestational age. MATERIALS AND METHODS: Eighty-three infants in a prospective cohort study underwent early 3T MR imaging between 29 and 35 weeks' postmenstrual age (mean, 32(+2) ± 1(+3) weeks; 49 males, born at median gestation of 28(+4) weeks; range, 23(+6)-30(+6) weeks; mean birthweight, 1068 ± 312 g)...
May 18, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28515367/association-of-impaired-neuronal-migration-with-cognitive-deficits-in-extremely-preterm-infants
#6
Ken-Ichiro Kubo, Kimiko Deguchi, Taku Nagai, Yukiko Ito, Keitaro Yoshida, Toshihiro Endo, Seico Benner, Wei Shan, Ayako Kitazawa, Michihiko Aramaki, Kazuhiro Ishii, Minkyung Shin, Yuki Matsunaga, Kanehiro Hayashi, Masaki Kakeyama, Chiharu Tohyama, Kenji F Tanaka, Kohichi Tanaka, Sachio Takashima, Masahiro Nakayama, Masayuki Itoh, Yukio Hirata, Barbara Antalffy, Dawna D Armstrong, Kiyofumi Yamada, Ken Inoue, Kazunori Nakajima
Many extremely preterm infants (born before 28 gestational weeks [GWs]) develop cognitive impairment in later life, although the underlying pathogenesis is not yet completely understood. Our examinations of the developing human neocortex confirmed that neuronal migration continues beyond 23 GWs, the gestational week at which extremely preterm infants have live births. We observed larger numbers of ectopic neurons in the white matter of the neocortex in human extremely preterm infants with brain injury and hypothesized that altered neuronal migration may be associated with cognitive impairment in later life...
May 18, 2017: JCI Insight
https://www.readbyqxmd.com/read/28505363/impact-of-high-iron-intake-on-cognition-and-neurodegeneration-in-humans-and-in-animal-models-a-systematic-review
#7
Sonal Agrawal, Kiersten L Berggren, Eileen Marks, Jonathan H Fox
Accumulation of brain iron is linked to aging and protein-misfolding neurodegenerative diseases. High iron intake may influence important brain health outcomes in later life. The aim of this systematic review was to examine evidence from animal and human studies of the effects of high iron intake or peripheral iron status on adult cognition, brain aging, and neurodegeneration. MEDLINE, Scopus, CAB Abstracts, the Cochrane Central Register of Clinical Trials, and OpenGrey databases were searched. Studies investigating the effect of elevated iron intake at all postnatal life stages in mammalian models and humans on measures of adult brain health were included...
May 15, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28494105/empathy-in-pediatric-intensive-care-nurses-part-2-neural-correlates
#8
Philip L Jackson, Margot Latimer, Fanny Eugène, Emily Macleod, Tara Hatfield, Etienne Vachon-Presseau, Pierre-Emmanuel Michon, Kenneth M Prkachin
AIMS: To determine if there are brain activity differences between pediatric intensive care nurses and allied health professionals during pain intensity rating tasks and test whether these differences are related to the population observed (infant or adult) and professional experience. BACKGROUND: The underestimation of patients' pain by healthcare professionals has generally been associated with patterns of change in neural response to vicarious pain, notably reduced activation in regions associated with affective sharing and increased activation in regions associated with regulation, compared with controls...
May 11, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28486543/preterm-brain-injury-on-term-equivalent-age-mri-in-relation-to-perinatal-factors-and-neurodevelopmental-outcome-at-two-years
#9
Margaretha J Brouwer, Karina J Kersbergen, Britt J M van Kooij, Manon J N L Benders, Ingrid C van Haastert, Corine Koopman-Esseboom, Jeffrey J Neil, Linda S de Vries, Hiroyuki Kidokoro, Terrie E Inder, Floris Groenendaal
OBJECTIVES: First, to apply a recently extended scoring system for preterm brain injury at term-equivalent age (TEA-)MRI in a regional extremely preterm cohort; second, to identify independent perinatal factors associated with this score; and third, to assess the prognostic value of this TEA-MRI score with respect to early neurodevelopmental outcome. STUDY DESIGN: 239 extremely preterm infants (median gestational age [range] in weeks: 26.6 [24.3-27.9]), admitted to the Wilhelmina Children's Hospital between 2006 and 2012 were included...
2017: PloS One
https://www.readbyqxmd.com/read/28484867/regional-brain-volume-reduction-and-cognitive-outcomes-in-preterm-children-at-low-risk-at-9%C3%A2-years-of-age
#10
Ebru Arhan, Kıvılcım Gücüyener, Şebnem Soysal, Şafak Şalvarlı, M Ali Gürses, Ayşe Serdaroğlu, Ercan Demir, Ebru Ergenekon, Canan Türkyılmaz, Esra Önal, Esin Koç, Yıldız Atalay
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...
May 8, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28470961/language-ability-in-preterm-children-is-associated-with-arcuate-fasciculi-microstructure-at-term
#11
Piergiorgio Salvan, J Donald Tournier, Dafnis Batalle, Shona Falconer, Andrew Chew, Nigel Kennea, Paul Aljabar, Ghislaine Dehaene-Lambertz, Tomoki Arichi, A David Edwards, Serena J Counsell
In the mature human brain, the arcuate fasciculus mediates verbal working memory, word learning, and sublexical speech repetition. However, its contribution to early language acquisition remains unclear. In this work, we aimed to evaluate the role of the direct segments of the arcuate fasciculi in the early acquisition of linguistic function. We imaged a cohort of 43 preterm born infants (median age at birth of 30 gestational weeks; median age at scan of 42 postmenstrual weeks) using high b value high-angular resolution diffusion-weighted neuroimaging and assessed their linguistic performance at 2 years of age...
May 4, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28467888/auditory-object-perception-a-neurobiological-model-and-prospective-review
#12
Julie A Brefczynski-Lewis, James W Lewis
Interaction with the world is a multisensory experience, but most of what is known about the neural correlates of perception comes from studying vision. Auditory inputs enter cortex with its own set of unique qualities, and leads to use in oral communication, speech, music, and the understanding of emotional and intentional states of others, all of which are central to the human experience. To better understand how the auditory system develops, recovers after injury, and how it may have transitioned in its functions over the course of hominin evolution, advances are needed in models of how the human brain is organized to process real-world natural sounds and "auditory objects"...
April 30, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28460842/the-emergence-of-network-inefficiencies-in-infants-with-autism-spectrum-disorder
#13
John D Lewis, Alan C Evans, John R Pruett, Kelly N Botteron, Robert C McKinstry, Lonnie Zwaigenbaum, Annette Estes, D Louis Collins, Penelope Kostopoulos, Guido Gerig, Stephen Dager, Sarah Paterson, Robert T Schultz, Martin Styner, Heather Hazlett, Joseph Piven
BACKGROUND: Autism spectrum disorder (ASD) is a developmental disorder defined by behavioral features that emerge during the first years of life. Research indicates that abnormalities in brain connectivity are associated with these behavioral features. However, the inclusion of individuals past the age of onset of the defining behaviors complicates interpretation of the observed abnormalities: they may be cascade effects of earlier neuropathology and behavioral abnormalities. Our recent study of network efficiency in a cohort of 24-month-olds at high and low familial risk for ASD reduced this confound; we reported reduced network efficiencies in toddlers classified with ASD...
March 16, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28439876/functional-vision-and-cognition-in-infants-with-congenital-disorders-of-the-peripheral-visual-system
#14
Naomi Dale, Elena Sakkalou, Michelle O'Reilly, Clare Springall, Michelle De Haan, Alison Salt
AIM: To investigate how vision relates to early development by studying vision and cognition in a national cohort of 1-year-old infants with congenital disorders of the peripheral visual system and visual impairment. METHOD: This was a cross-sectional observational investigation of a nationally recruited cohort of infants with 'simple' and 'complex' congenital disorders of the peripheral visual system. Entry age was 8 to 16 months. Vision level (Near Detection Scale) and non-verbal cognition (sensorimotor understanding, Reynell Zinkin Scales) were assessed...
April 25, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28422948/beyond-the-uterine-environment-nonhuman-primate-model-to-investigate-maternal-fetal-and-neonatal-outcomes-following-chronic-intrauterine-infection
#15
Meredith A Kelleher, Zheng Liu, Xiaojie Wang, Christopher D Kroenke, Lisa A Houser, Brandy L Dozier, Lauren D Martin, Ken B Waites, Cindy McEvoy, Robert L Schelonka, Peta L Grigsby
BACKGROUND: Intrauterine infection is a significant cause of early preterm birth. We have developed a fetal-neonatal model in the rhesus macaque to determine the impact of chronic intrauterine infection with Ureaplasma parvum on early neonatal reflexes and brain development. METHODS: Time-mated, pregnant rhesus macaques were randomized to be inoculated with U. parvum (serovar 1; 10(5)cfu) or control media at ~120 dGA. Neonates were delivered by elective hysterotomy at 135-147 dGA (term=167d) stabilized and cared for in our nonhuman primate neonatal intensive care unit...
April 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28401835/brain-activity-and-infant-attachment-history-in-young-men-during-loss-and-reward-processing
#16
Karina Quevedo, Theodore E A Waters, Hannah Scott, Glenn I Roisman, Daniel S Shaw, Erika E Forbes
There is now ample evidence that the quality of early attachment experiences shapes expectations for supportive and responsive care and ultimately serves to scaffold adaptation to the salient tasks of development. Nonetheless, few studies have identified neural mechanisms that might give rise to these associations. Using a moderately large sample of low-income male participants recruited during infancy (N = 171), we studied the predictive significance of attachment insecurity and disorganization at age 18 months (as measured in the Strange Situation Procedure) for patterns of neural activation to reward and loss at age 20 years (assessed during a reward-based task as part of a functional magnetic resonance imaging scan)...
May 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28394273/hippocampal-neuronal-loss-in-infant-macaques-orally-infected-with-virulent-simian-immunodeficiency-virus-siv
#17
Heather Carryl, Koen K A Van Rompay, Kristina De Paris, Mark W Burke
The neurological impact of Human Immunodeficiency Virus (HIV) on children includes loss of brain growth, motor abnormalities and cognitive dysfunction. Despite early antiretroviral treatment (ART) intervention to suppress viral load, neurological consequences of perinatal HIV-1 infection persist. Utilizing the pediatric simian immunodeficiency virus (SIV) infection model, we tested the hypothesis that early-life SIV infection depletes neuronal population in the hippocampus. A total of 22 ART-naïve infant rhesus macaques (Macaca mulatta) from previous studies were retrospectively analyzed...
April 10, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28388601/early-postnatal-exposure-to-intermittent-hypoxia-in-rodents-is-proinflammatory-impairs-white-matter-integrity-and-alters-brain-metabolism
#18
Robert A Darnall, Xi Chen, Krishnamurthy V Nemani, Chrystelle M Sirieix, Barjor Gimi, Susan Knoblach, Betty L McEntire, Carl E Hunt
BackgroundPreterm infants are frequently exposed to intermittent hypoxia (IH) associated with apnea and periodic breathing that may result in inflammation and brain injury that later manifests as cognitive and executive function deficits. We used a rodent model to determine whether early postnatal exposure to IH would result in inflammation and brain injury.MethodsRat pups were exposed to IH from P2 to P12. Control animals were exposed to room air. Cytokines were analyzed in plasma and brain tissue at P13 and P18...
May 3, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28355229/surgery-increases-cell-death-and-induces-changes-in-gene-expression-compared-with-anesthesia-alone-in-the-developing-piglet-brain
#19
Kevin D Broad, Go Kawano, Igor Fierens, Eridan Rocha-Ferreira, Mariya Hristova, Mojgan Ezzati, Jamshid Rostami, Daniel Alonso-Alconada, Badr Chaban, Jane Hassell, Bobbi Fleiss, Pierre Gressens, Robert D Sanders, Nicola J Robertson
In a range of animal species, exposure of the brain to general anaesthesia without surgery during early infancy may adversely affect its neural and cognitive development. The mechanisms mediating this are complex but include an increase in brain cell death. In humans, attempts to link adverse cognitive development to infantile anaesthesia exposure have yielded ambiguous results. One caveat that may influence the interpretation of human studies is that infants are not exposed to general anaesthesia without surgery, raising the possibility that surgery itself, may contribute to adverse cognitive development...
2017: PloS One
https://www.readbyqxmd.com/read/28351446/on-the-relationship-between-head-circumference-brain-size-prenatal-long-chain-pufa-5-methyltetrahydrofolate-supplementation-and-cognitive-abilities-during-childhood
#20
Andrés Catena, Cristina Martínez-Zaldívar, Carolina Diaz-Piedra, Francisco J Torres-Espínola, Pilar Brandi, Miguel Pérez-García, Tamás Decsi, Berthold Koletzko, Cristina Campoy
Head circumference in infants has been reported to predict brain size, total grey matter volume (GMV) and neurocognitive development. However, it is unknown whether it has predictive value on regional and subcortical brain volumes. We aimed to explore the relationship between several head circumference measurements since birth and distributions of GMV and subcortical volumes at later childhood. We examined seventy-four, Caucasian, singleton, term-born infants born to mothers randomised to receive fish oil and/or 5-methyltetrahydrofolate or placebo prenatal supplementation...
March 29, 2017: British Journal of Nutrition
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