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International Journal of Developmental Neuroscience

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https://www.readbyqxmd.com/read/28412445/methylphenidate-effects-in-the-young-brain-friend-or-foe
#1
REVIEW
Sara Loureiro-Vieira, Vera Marisa Costa, Maria de Lourdes Bastos, Félix Carvalho, João Paulo Soares Capela
Attention deficit hyperactivity disorder (ADHD) is one of the most prevalent neuropsychiatry disorders in children and adolescents, and methylphenidate (MPH) is a first-line stimulant drug available worldwide for its treatment. Despite the proven therapeutic efficacy, concerns have been raised regarding the possible consequences of chronic MPH exposure during childhood and adolescence. Disturbances in the neurodevelopment at these crucial stages are major concerns given the unknown future life consequences...
April 12, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28396290/neuroanatomical-demonstration-of-calbindin-2a-and-calbindin-2b-like-calcium-binding-proteins-in-the-early-embryonic-development-of-zebrafish-mrna-study
#2
Rahul C Bhoyar, Arun G Jadhao, Sridhar Sivasubbu, A R Singh, Ankit Sabharwal, Nikhil V Palande, Saikat Biswas
Certain calcium binding proteins (CaBPs) are essential for metabolic processes but the role of these proteins in the development is not well known. We have investigated the mRNA expression of CaBPs, calbindin 2a (Calb2a) and calbindin 2b (Calb2b) in the zebrafish embryos 24, 36, 48 and 72hour post fertilization (hpf). We have seen very high Calb2a mRNA expression in the tegmentum (Tg), midbrain-hindbrain boundary (Mhb), hindbrain (Hb), spinal cord (Sc), retina and cranial ganglion (Crg). Also very high Calb2b mRNA expression was noted in olfactory cells, cerebellum, Tg, Mhb, Hb, optic tectum, retina, retinal ganglion cell layer, retinal inner nuclear layer, Sc, Neural crest, infraorbital neuromasts, pharyngeal arch 3-7 skeleton and mandibular neuromasts...
April 7, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28389369/prenatal-stress-and-depression-associated-neuronal-development-in-neonates
#3
REVIEW
Mahino Fatima, Saurabh Srivastav, Amal Chandra Mondal
Prenatal maternal depression has its direct effects on early brain development deficits with permanent changes in neuroendocrine functions and impaired behavior in offsprings. Prenatal stress (PS) transmits its affect on developing fetus and on pregnancy outcomes in adult offsprings. This results in impaired neurodevelopment, delayed cognitive and motor development with impaired behavior towards stressful conditions. There are sufficient evidences in animal models suggesting depression responsive hypothalamic-pituitary-adrenal (HPA) axis and its hormonal response via cortisol, responsible for its critical effects in both the mother and offspring...
April 4, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28377130/food-restriction-affects-y-maze-spatial-recognition-memory-in-developing-mice
#4
Yu Fu, Yanmei Chen, Liane Li, Yumei Wang, Xiangyang Kong, Jianhong Wang
The ambiguous effects of food restriction (FR) on cognition in rodents have been mostly explored in the aged brain by a variety of paradigms, in which either rewards or punishments are involved. This study aims to examine the effects of chronic and acute FR with varying intensities on spatial recognition memory in developing mice. We have used a Y-maze task that is based on the innate tendency of rodents to explore novel environments. In chronic FR, mice had 70-30% chow of control for seven weeks. In acute FR, mice were food restricted for 12-48h before the tests...
April 1, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28377129/analysis-of-expression-of-transcription-factors-in-early-human-retina
#5
Jing Chen, Lixiang Ma, Songtao Wang, Xiaobing Wang, Yan Sun, Lu Gao, Jin Li, Guomin Zhou
The retina originates in the central nervous system. Due to its accessibility and simplicity, the retina has become an invaluable model for studying the basic mechanisms involved in development. To date, considerable knowledge regarding the interactions among genes that coordinate retinal development has been gained from extensive research in model animals. However, our understanding of retinal development in humans remains undeveloped. Here, we analyze the expression of transcription factors that are involved in the early development of the retina in human embryos at 6 to 12 weeks post-conception...
April 1, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28373023/cognitive-deficits-associated-with-a-high-fat-diet-and-insulin-resistance-are-potentiated-by-overexpression-of-ecto-nucleotide-pyrophosphatase-phosphodiesterase-1
#6
REVIEW
J M Kasper, A J Milton, A E Smith, F Laezza, G Taglialatela, J D Hommel, N Abate
There is growing evidence that over consumption of high-fat foods and insulin resistance may alter hippocampal-dependent cognitive function. To study the individual contributions of diet and peripheral insulin resistance to learning and memory, we used a transgenic mouse line that overexpresses ecto-nucleotide pyrophosphatase phosphodiesterase-1 in adipocytes, which inhibits the insulin receptor. Here, we demonstrate that a model of peripheral insulin resistance exacerbates high-fat diet induced deficits in performance on the Morris Water Maze task...
March 31, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28341538/the-differential-impact-of-oxytocin-receptor-gene-in-violence-exposed-boys-and-girls
#7
Livia C Merrill, Christopher W Jones, Stacy S Drury, Katherine P Theall
Childhood violence exposure is a prevalent public health problem. Understanding the lasting impact of violence requires an enhanced appreciation for the complex effects of violence across behavioral, physiologic, and molecular outcomes. This subject matched, cross-sectional study of 80 children explored the impact of violence exposure across behavioral, physiologic, and cellular outcomes. Externalizing behavior, diurnal cortisol rhythm, and telomere length (TL) were examined in a community recruited cohort of Black youth...
March 22, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28330828/early-postnatal-iron-deficiency-impacts-plasticity-in-the-dorsal-and-ventral-hippocampus-in-piglets
#8
Ellis Nelissen, Jochen De Vry, Alexandra Antonides, Dean Paes, Melissa Schepers, Franz Josef van der Staay, Jos Prickaerts, Tim Vanmierlo
In this study, we investigated whether alterations in plasticity markers such as brain-derived neurotrophic factor (BDNF), p75 neurotrophin receptor (p75(NTR)) and tyrosine receptor kinase B (TrkB) are underlying iron deficiency (ID)-induced cognitive impairments in iron depleted piglets. Newborn piglets were either fed an iron-depleted diet (21mg Fe/kg) or an iron-sufficient diet (88mg Fe/kg) for four weeks. Subsequently, eight weeks after iron repletion (190-240mg Fe/kg) we found a significant decrease in mature BDNF (14kDa) and proBDNF (18kDa and 24kDa) protein levels in the ventral hippocampus, whereas we found increases in the dorsal hippocampus...
March 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28330827/intrauterine-exposure-to-maternal-stress-alters-bdnf-iv-dna-methylation-and-telomere-length-in-the-brain-of-adult-rat-offspring
#9
Jennifer Blaze, Arun Asok, Kristyn Borrelli, Christina Tulbert, Justin Bollinger, April E Ronca, Tania L Roth
DNA methylation (addition of methyl groups to cytosines) and changes in telomere length (TTAGGG repeats on the ends of chromosomes) are two molecular modifications that result from stress and could contribute to the long-term effects of intrauterine exposure to maternal stress on offspring behavior. Here, we measured methylation of DNA associated with the Brain-derived neurotrophic factor (Bdnf) gene, a gene important in development and plasticity, and telomere length in the brains of adult rat male and female offspring whose mothers were exposed to unpredictable and variable stressors throughout gestation...
March 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28330826/the-influence-of-methamphetamine-on-maternal-behavior-and-development-of-the-pups-during-the-neonatal-period
#10
Mária Ševčíková, Ivana Hrebíčková, Eva Macúchová, Romana Šlamberová
Since it enters breast milk, methamphetamine (MA) abuse during lactation can not only affect the quality of maternal behavior but also postnatal development of pups. The aim of the present study was to examine the effect of injected MA (5mg/kg) on maternal behavior of rats and the differences in postnatal development, during postnatal days (PD) 1-11, of pups when the pups were directly exposed (i.e., injected) to MA or received MA indirectly via breast milk. Maternal behavior was examined using observation test (PD 1-22) and pup retrieval test (PD 1-12)...
March 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28330777/altered-visual-repetition-suppression-in-fragile-x-syndrome-new-evidence-from-erps-and-oscillatory-activity
#11
Simon Rigoulot, Inga S Knoth, Marc-Philippe Lafontaine, Phetsamone Vannasing, Philippe Major, Sébastien Jacquemont, Jacques L Michaud, Karim Jerbi, Sarah Lippé
Fragile X Syndrome (FXS) is a neurodevelopmental genetic disorder associated with cognitive and behavioural deficits. In particular, neuronal habituation processes have been shown to be altered in FXS patients. Yet, while such deficits have been primarily explored using auditory stimuli, less is known in the visual modality. Here, we investigated the putative alteration of repetition suppression using faces in FXS patients compared to controls that had the same age distribution. Electroencephalographic (EEG) signals were acquired while participants were presented with 18 different faces, each repeated ten times successively...
March 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28323039/pomc-and-npy-mrna-expression-during-development-is-increased-in-rat-offspring-brain-from-mothers-fed-with-a-high-fat-diet
#12
Marianne Orlandini Klein, Harry MacKay, Alexander Edwards, Su-Bin Park, Ana Carolina Inhasz Kiss, Luciano Freitas Felicio, Alfonso Abizaid
Developmental programming is influenced by perinatal nutrition and it has long-lasting impacts on adult metabolism in the offspring. In particular, maternal high fat diet has been associated with increased risk of obesity and metabolic disorders during adulthood in the descendants. These effects may be due to the effects of the high fat diet on the development of the systems that regulate food intake and energy balance in the offspring hypothalamus. The arcuate nucleus (ARC) may be a particularly sensitive region to it as this nucleus contains the POMC and AgRP/NPY neurons that integrate the melanocortin system...
March 18, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28323038/monocular-denervation-of-visual-nuclei-modulates-app-processing-and-sapp%C3%AE-production-a-possible-role-on-neural-plasticity
#13
Juliana Ferreira Vasques, Pedro Vinícius Bastos Heringer, Renata Guedes de Jesus Gonçalves, Paula Campello-Costa, Claudio Alberto Serfaty, Adriana da Cunha Faria-Melibeu
Amyloid precursor protein (APP) is essential to physiological processes such as synapse formation and neural plasticity. Sequential proteolysis of APP by beta- and gamma-secretases generates amyloid-beta peptide (Aβ), the main component of senile plaques in Alzheimer Disease. Alternative APP cleavage by alpha-secretase occurs within Aβ domain, releasing soluble α-APP (sAPPα), a neurotrophic fragment. Among other functions, sAPPα is important to synaptogenesis, neural survival and axonal growth. APP and sAPPα levels are increased in models of neuroplasticity, which suggests an important role for APP and its metabolites, especially sAPPα, in the rearranging brain...
March 18, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28285946/development-of-rostral-inferior-parietal-lobule-area-functional-connectivity-from-late-childhood-to-early-adulthood
#14
Mengxing Wang, Jilei Zhang, Guangheng Dong, Hui Zhang, Haifeng Lu, Xiaoxia Du
Although the mirror neuron system (MNS) has been extensively studied in monkeys and adult humans, very little is known about its development. Previous studies suggest that the MNS is present by infancy and that the brain and MNS-related cognitive abilities (such as language, empathy, and imitation learning) continue to develop after childhood. In humans, the PFt area of the inferior parietal lobule (IPL) seems to particularly correlate with the functional properties of the PF area in primates, which contains mirror neurons...
March 7, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28285945/hanging-drop-culture-enhances-differentiation-of-human-adipose-derived-stem-cells-into-anterior-neuroectodermal-cells-using-small-molecules
#15
Noushin Amirpour, Shahnaz Razavi, Ebrahim Esfandiari, Batoul Hashemibeni, Mohammad Kazemi, Hossein Salehi
Inspired by in vivo developmental process, several studies were conducted to design a protocol for differentiating of mesenchymal stem cells into neural cells in vitro. Human adipose-derived stem cells (hADSCs) as mesenchymal stem cells are a promising source for this purpose. At current study, we applied a defined neural induction medium by using small molecules for direct differentiation of hADSCs into anterior neuroectodermal cells. Anterior neuroectodermal differentiation of hADSCs was performed by hanging drop and monolayer protocols...
March 7, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28274759/insulin-deficiency-a-possible-link-between-obesity-and-cognitive-function
#16
Ghazaleh Nameni, Mahdieh Abbasalizad Farhangi, Ghazaleh Hajiluian, Parviz Shahabi, Mehran Mesgari Abbasi
BACKGROUND: Epidemiological studies proposed a linear connection between developing dementia including Alzheimer's disease (AD) and obesity. Adiposity, insulin resistance and dementia indicated probable mechanistic links in this process. Indeed, it has been known that optimum insulin action in the brain plays critical role in cognitive function; whereas, insulin resistance in obese individuals finally leads to insulin deficiency in central nervous system (CNS) and down regulation of the efficiency of insulin uptake from periphery into CSF...
March 6, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28257945/effect-of-high-fat-diets-on-the-ntpdase-5-nucleotidase-and-acetylcholinesterase-activities-in-the-central-nervous-system
#17
Rosilene Rodrigues Kaizer, Rosélia Maria Spanevello, Eduarda Costa, Vera Maria Morsch, Maria Rosa Chitolina Schetinger
High fat diets are associated with the promotion of neurological diseases, such as Alzheimer disease (AD). This study aim investigate the high fat diets role to promotion of AD using as biochemistry parameter of status of central nervous system through the NTPDase, 5'-nucleotidase and acetylcholinesterase (AChE) activities in brain of young rats. The intake of high fat diets promotes an inhibition of purinergic and cholinergic functions, mainly in the long-term exposure to saturated and saturated/unsaturated diets...
March 1, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28242183/evaluation-of-changes-in-magnetic-resonance-diffusion-tensor-imaging-of-the-bilateral-optic-tract-in-monocular-blind-rats
#18
Rong Wang, Yufeng Zhong, Weijun Tang, Zuohua Tang, Xinghuai Sun, Xiaoyuan Feng, Jiawen Fan, Lingjie Wu, Jie Wang, Zebin Xiao, Lixin Jin
Some studies have used diffusion tensor imaging (DTI) to investigate white matter development of the visual pathway in humans and animals after visual deprivation. However, the alterations in the bilateral optic tract after the transection of unilateral optic nerve have not been well explored. In this study, we attempted to investigate the structural integrity of and pathological changes to the bilateral optic tract after transection of the unilateral optic nerve in rats using DTI. Eight healthy male Sprague-Dawley (SD) rats were randomly divided into 2 groups, with 4 in each group...
February 24, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28238464/type-1-diabetes-cognition-and-the-neurologist-exploring-go-no-go-and-maze-tasks-in-the-search-for-a-practical-screening-tool
#19
Jullyanna S M Shinosaki, Joaquim C Rossini, Maria Luiza P M Jorge, Lorena B C Macedo, Paulo J Tannús
AIMS: The objectives were to use inexpensive and easy-to-apply tasks in order to investigate the differences between type 1 diabetes mellitus (T1DM) patients and controls regarding attention and impulsivity, which are the basis for key-executive function components that are traditionally assessed using subjective, long and difficult to reproduce questionnaires. Additionally, we sought to correlate these differences with clinical characteristics, and to explore correlations between the tasks...
February 23, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28219764/gabaa-receptor-expression-and-white-matter-disruption-in-intrauterine-growth-restricted-piglets
#20
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 20, 2017: International Journal of Developmental Neuroscience
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