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https://www.readbyqxmd.com/read/28219764/gabaa-receptor-expression-and-white-matter-disruption-in-intrauterine-growth-restricted-piglets
#1
Viskasari P Kalanjati, Julie A Wixey, Stephanie M Miller, Paul B Colditz, Stella T Bjorkman
Intrauterine growth restriction (IUGR) is one of the most common causes of perinatal mortality and morbidity. White matter and neuronal injury are major pathophysiological features of the IUGR neonatal brain. GABAA (γ-aminobutyric acid type A) receptors have been shown to play a role in oligodendrocyte differentiation and proliferation in the neonatal brain and may be a key factor in white matter injury and myelination in IUGR neonates. Whether there are impairments to the GABAergic system and neuronal cytoskeleton in IUGR brain has yet to be elucidated...
February 17, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28159210/neurodevelopmental-outcomes-of-preterm-infants-fed-human-milk-a-systematic-review
#2
REVIEW
Beatrice E Lechner, Betty R Vohr
The neurodevelopmental benefits of breast milk feedings for preterm infants have been controversial. However, the effect on preterm infant neurodevelopment is sustained into childhood. The effects of breast milk feeding during the neonatal period and the duration of breastfeeding display effects on cognition into adolescence. The volume of breast milk received is a key factor in these effects. Additionally, emerging studies support the effects of human milk on structural brain development, such as increased white matter development and increased cortical thickness...
March 2017: Clinics in Perinatology
https://www.readbyqxmd.com/read/28158932/the-association-of-neonatal-morbidity-with-long-term-neurological-outcome-in-infants-who-were-growth-restricted-and-preterm-at-birth-secondary-analyses-from-truffle-trial-of-randomized-umbilical-and-fetal-flow-in-europe
#3
A G Van Wassenaer-Leemhuis, N Marlow, C Lees, H Wolf
OBJECTIVE: To study the relationship between neonatal morbidity (NNM) and two-year neurodevelopmental impairment (NDI) in surviving children after early fetal growth restriction (FGR). DESIGN: Secondary analysis of a European randomised trial (TRUFFLE) of delivery for very preterm fetuses dependent on venous Doppler or cardiotocographic criteria. SETTING: Tertiary perinatal centres, participants in TRUFFLE. POPULATION: 402 surviving children after early FGR...
February 3, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28151495/greater-brain-response-to-emotional-expressions-of-their-own-children-in-mothers-of-preterm-infants-an-fmri-study
#4
R Montirosso, F Arrigoni, E Casini, A Nordio, P De Carli, F Di Salle, S Moriconi, M Re, G Reni, R Borgatti
OBJECTIVE: The birth of a preterm infant and Neonatal Intensive Care Unit hospitalization constitute a potentially traumatic experience for mothers. Although behavioral studies investigated the parenting stress in preterm mothers, no study focused on the underlying neural mechanisms. We examined the effect of preterm births in mothers, by comparing brain activation in mothers of preterm and full-term infants. STUDY DESIGN: We used functional magnetic resonance imaging to measure the cerebral response of 10 first-time mothers of preterm infants (gestational age <32 weeks and/or birth weight <1500) and 11 mothers of full-term infants, viewing happy-, neutral- and distress-face images of their own infant, along with a matched unknown infant...
February 2, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28132814/deficits-in-top-down-sensory-prediction-in-infants-at-risk-due-to-premature-birth
#5
Lauren L Emberson, Alex M Boldin, Julie E Riccio, Ronnie Guillet, Richard N Aslin
A prominent theoretical view is that the brain is inherently predictive [1, 2] and that prediction helps drive the engine of development [3, 4]. Although infants exhibit neural signatures of top-down sensory prediction [5, 6], in order to establish that prediction supports development, it must be established that deficits in early prediction abilities alter trajectories. We investigated prediction in infants born prematurely, a leading cause of neuro-cognitive impairment worldwide [7]. Prematurity, independent of medical complications, leads to developmental disturbances [8-12] and a broad range of developmental delays [13-17]...
February 6, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28131560/-eating-behavior-in-pediatric-obesity-of-the-advantages-of-combining-the-neurobiological-and-neuropsychological-approaches
#6
B Schoentgen, C Lancelot, D Le Gall
Obesity is currently considered a major public health concern, as shown by the growing number of people with excess weight, alarmingly in infants, and despite medical care. Many studies have underlined the reasons for medical care failure caused by an inability to sustain a resistant behavior towards palatable food (high sugar and fat content). Hence, previous research has highlighted connections between excessive eating behavior and the activity of neurotransmitters in brain areas involved in affective behavior and the reward circuit...
January 25, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28130959/evidence-of-altered-brain-regulatory-gene-expression-in-tobacco-exposed-fetuses
#7
Hamisu M Salihu, Arnut Paothong, Rachita Das, Lindsey M King, Anupam Pradhan, Bridget Riggs, Eknath Naik, Erin M Siegel, Valerie E Whiteman
AIM: We sought to determine the association between prenatal smoking status and expression of fetal brain regulatory genes. METHODS: At delivery, we collected information from parturient women on prenatal smoking habits and analyzed salivary cotinine levels. We obtained neonatal umbilical cord blood and extracted total RNA. We then employed the quantitative polymerase chain reaction (QPCR) analyses and the comparative CT method to calculate the relative gene expression of selected fetal brain regulatory genes responsible for (1) brain growth (brain-derived neutrotrophic factor, BDNF), (2) myelination (proteolipidic protein 1, PLP1 and myelin basic protein, MBP), and (3) neuronal migration and cell-cell interactions during fetal brain development or RLN...
January 28, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28130919/the-development-of-extremely-premature-infants
#8
Wolfgang Voss, Elke Hobbiebrunken, Uta Ungermann, Michael Wagner, Gabriele Damm
BACKGROUND: Until now, there has been no comprehensive long-term study in Germany on the development of extremely premature infants up to school age. METHODS: From October 2004 to September 2008, in the German federal state of Lower Saxony, 437 infants born at a gestational age less than 28 weeks were followed up at the ages of 2 and 5 years, and some at the age of 10 years. The 5-year follow-up data were collated with the peri- and neonatological parameters and compared with the 2- and 10-year follow-up data...
December 26, 2016: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28123645/dynamic-alteration-of-neprilysin-and-endothelin-converting-enzyme-in-age-dependent-appswe-ps1de9-mouse-model-of-alzheimer-s-disease
#9
Li Zhou, Jianxu Liu, Dong Dong, Chunsheng Wei, Rui Wang
Imbalance of Aβ production and Aβ removal leads to Aβ accumulation. Aβ degrading enzyme (including neprilysin-NEP, endothelin converting enzyme-ECE) as a therapeutic strategy for lowering brain Aβ deposition has attracted increasing attention. In this study, we investigated alteration of age and region-dependent in APP/PS1 double transgenic mice (3, 6, 9, 12 months) and their age-matched wild type mice including the ability of spatial memory, Aβ deposits, the protein expression, location and activity of NEP and ECE...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28120318/the-human-infant-brain-a-neural-architecture-able-to-learn-language
#10
Ghislaine Dehaene-Lambertz
To understand the type of neural computations that may explain how human infants acquire their native language in only a few months, the study of their neural architecture is necessary. The development of brain imaging techniques has opened the possibilities of studying human infants without discomfort, and although these studies are still sparse, several characteristics are noticeable in the human infant's brain: first, parallel and hierarchical processing pathways are observed before intense exposure to speech with an efficient temporal coding in the left hemisphere and, second, frontal regions are involved from the start in infants' cognition...
January 24, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28112458/plasticity-of-neonatal-neuronal-networks-in-very-premature-infants-source-localization-of-temporal-theta-activity-the-first-endogenous-neural-biomarker-in-temporoparietal-areas
#11
L Routier, M Mahmoudzadeh, M Panzani, H Azizollahi, S Goudjil, G Kongolo, F Wallois
Temporal theta slow-wave activity (TTA-SW) in premature infants is a specific signature of the early development of temporal networks, as it is observed at the turning point between non-sensory driven spontaneous local processing and cortical network functioning. The role in development and the precise location of TTA-SW remain unknown. Previous studies have demonstrated that preterms from 28 weeks of gestational age (wGA) are able to discriminate phonemes and voice, supporting the idea of a prior genetic structural or activity-dependent fingerprint that would prepare the auditory network to compute auditory information at the onset of thalamocortical connectivity...
January 23, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28110393/nitric-oxide-production-in-the-striatum-and-cerebellum-of-a-rat-model-of-preterm-global-perinatal-asphyxia
#12
M Barkhuizen, W D J Van de Berg, J De Vente, C E Blanco, A W D Gavilanes, H W M Steinbusch
Encephalopathy due to perinatal asphyxia (PA) is a major cause of neonatal morbidity and mortality in the period around birth. Preterm infants are especially at risk for cognitive, attention and motor impairments. Therapy for this subgroup is limited to supportive care, and new targets are thus urgently needed. Post-asphyxic excitotoxicity is partially mediated by excessive nitric oxide (NO) release. The aims of this study were to determine the timing and distribution of nitric oxide (NO) production after global PA in brain areas involved in motor regulation and coordination...
January 21, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28104188/maternal-multiple-micronutrient-supplementation-and-other-biomedical-and-socioenvironmental-influences-on-children-s-cognition-at-age-9-12-years-in-indonesia-follow-up-of-the-summit-randomised-trial
#13
Elizabeth L Prado, Susy K Sebayang, Mandri Apriatni, Siti R Adawiyah, Nina Hidayati, Ayuniarti Islamiyah, Sudirman Siddiq, Benyamin Harefa, Jarrad Lum, Katherine J Alcock, Michael T Ullman, Husni Muadz, Anuraj H Shankar
BACKGROUND: Brain and cognitive development during the first 1000 days from conception are affected by multiple biomedical and socioenvironmental determinants including nutrition, health, nurturing, and stimulation. An improved understanding of the long-term influence of these factors is needed to prioritise public health investments to optimise human development. METHODS: We did a follow-up study of the Supplementation with Multiple Micronutrients Intervention Trial (SUMMIT), a double-blind, cluster-randomised trial of maternal supplementation with multiple micronutrients (MMN) or iron and folic acid (IFA) in Indonesia...
February 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28087242/brains-for-birds-and-babies-neural-parallels-between-birdsong-and-speech-acquisition
#14
REVIEW
Jonathan Prather, Kazuo Okanoya, Johan J Bolhuis
Language as a computational cognitive mechanism appears to be unique to the human species. However, there are remarkable behavioral similarities between song learning in songbirds and speech acquisition in human infants that are absent in non-human primates. Here we review important neural parallels between birdsong and speech. In both cases there are separate but continually interacting neural networks that underlie vocal production, sensorimotor learning, and auditory perception and memory. As in the case of human speech, neural activity related to birdsong learning is lateralized, and mirror neurons linking perception and performance may contribute to sensorimotor learning...
January 10, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28081026/the-effect-of-nebulized-glycopyrrolate-on-posterior-drooling-in-patients-with-brain-injury-two-cases-of-different-brain-lesions
#15
Zee-Ihn Lee, Kwang Jae Yu, Dae Hee Lee, Seong Kyung Hong, Seung Beom Woo, Jong Min Kim, Donghwi Park
Posterior drooling, which can lead to substantial respiratory morbidity, including unexplained lung diseases and recurrent pneumonia, is an important issue in the rehabilitation unit. There are various treatment options for posterior drooling, including pharmacologic therapy, oral motor or behavioral therapy, biofeedback, local glandular injection of botulinum toxin, irradiation, and surgery. Among them, nebulized glycopyrrolate has the following advantages: It is noninvasive and is relatively free of central adverse effects because it does not cross the blood-brain barrier unlike other anticholinergics...
January 9, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28062175/intranasal-c3a-treatment-ameliorates-cognitive-impairment-in-a-mouse-model-of-neonatal-hypoxic-ischemic-brain-injury
#16
Javier Morán, Anna Stokowska, Frederik R Walker, Carina Mallard, Henrik Hagberg, Marcela Pekna
Perinatal asphyxia-induced brain injury is often associated with irreversible neurological complications such as intellectual disability and cerebral palsy but available therapies are limited. Novel neuroprotective therapies as well as approaches stimulating neural plasticity mechanism that can compensate for cell death after hypoxia-ischemia (HI) are urgently needed. We previously reported that single i.c.v. injection of complement-derived peptide C3a 1h after HI induction prevented HI-induced cognitive impairment when mice were tested as adults...
January 4, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28059709/microstructure-of-the-default-mode-network-in-preterm-infants
#17
J Cui, O Tymofiyeva, R Desikan, T Flynn, H Kim, D Gano, C P Hess, D M Ferriero, A J Barkovich, D Xu
BACKGROUND AND PURPOSE: Diffusion and fMRI has been providing insights to brain development in addition to anatomic imaging. This study aimed to evaluate the microstructure of white matter tracts underlying the default mode network in premature infants by using resting-state functional MR imaging in conjunction with diffusion tensor imaging-based tractography. MATERIALS AND METHODS: A cohort of 44 preterm infants underwent structural T1-weighted imaging, resting-state fMRI, and DTI at 3T, including 21 infants with brain injuries and 23 infants with normal-appearing structural imaging as controls...
February 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28042822/enduring-sexually-dimorphic-impact-of-in-utero-exposure-to-elevated-levels-of-glucocorticoids-on-midbrain-dopaminergic-populations
#18
REVIEW
Glenda E Gillies, Kanwar Virdee, Ilse Pienaar, Felwah Al-Zaid, Jeffrey W Dalley
Glucocorticoid hormones (GCs) released from the fetal/maternal glands during late gestation are required for normal development of mammalian organs and tissues. Accordingly, synthetic glucocorticoids have proven to be invaluable in perinatal medicine where they are widely used to accelerate fetal lung maturation when there is risk of pre-term birth and to promote infant survival. However, clinical and pre-clinical studies have demonstrated that inappropriate exposure of the developing brain to elevated levels of GCs, either as a result of clinical over-use or after stress-induced activation of the fetal/maternal adrenal cortex, is linked with significant effects on brain structure, neurological function and behaviour in later life...
December 30, 2016: Brain Sciences
https://www.readbyqxmd.com/read/28017265/cortical-specialisation-to-social-stimuli-from-the-first-days-to-the-second-year-of-life-a-rural-gambian-cohort
#19
S Lloyd-Fox, K Begus, D Halliday, L Pirazzoli, A Blasi, M Papademetriou, M K Darboe, A M Prentice, M H Johnson, S E Moore, C E Elwell
Brain and nervous system development in human infants during the first 1000days (conception to two years of age) is critical, and compromised development during this time (such as from under nutrition or poverty) can have life-long effects on physical growth and cognitive function. Cortical mapping of cognitive function during infancy is poorly understood in resource-poor settings due to the lack of transportable and low-cost neuroimaging methods. Having established a signature cortical response to social versus non-social visual and auditory stimuli in infants from 4 to 6 months of age in the UK, here we apply this functional Near Infrared Spectroscopy (fNIRS) paradigm to investigate social responses in infants from the first postnatal days to the second year of life in two contrasting environments: rural Gambian and urban UK...
November 27, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28011793/protecting-the-premature-brain-current-evidence-based-strategies-for-minimising-perinatal-brain-injury-in-preterm-infants
#20
Charlotte L Lea, Adam Smith-Collins, Karen Luyt
Improving neurodevelopmental outcome for preterm infants is an important challenge for neonatal medicine. The disruption of normal brain growth and neurological development is a significant consequence of preterm birth and can result in physical and cognitive impairments. While advances in neonatal medicine have led to progressively better survival rates for preterm infants, there has only been a modest improvement in the proportion of surviving infants without neurological impairment, and no change in the proportion with severe disability...
March 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
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