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International Journal of Developmental Neuroscience

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https://www.readbyqxmd.com/read/28192175/increased-anxiety-like-phenotype-in-female-guinea-pigs-following-reduced-neurosteroid-exposure-in-utero
#1
Angela L Cumberland, Hannah K Palliser, Gabrielle K Crombie, David W Walker, Jonathan J Hirst
Neurosteroids are essential for aiding proper fetal neurodevelopment. Pregnancy compromises such as preterm birth, prenatal stress and intrauterine growth restriction are associated with an increased risk of developing behavioural and mood disorders, particularly during adolescence. These pathologies involve the premature loss or alteration of trophic steroid hormones reaching the fetus leading to impaired neurodevelopment. While the specific programming mechanisms are yet to be fully elucidated, in adult life, dysfunctions of allopregnanolone action are prevalent in individuals with depression, post-traumatic stress disorder and anxiety disorders...
February 9, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28179105/a-prenatal-nicotine-exposure-mouse-model-of-methylphenidate-responsive-adhd-associated-cognitive-phenotypes
#2
Jinmin Zhu, Fangfang Fan, Deirdre M McCarthy, Lin Zhang, Elisa N Cannon, Thomas J Spencer, Joseph Biederman, Pradeep G Bhide
Prenatal exposure to nicotine via cigarette smoke or other forms of tobacco use is a significant environmental risk factor for attention deficit hyperactivity disorder (ADHD). The neurobiological mechanisms underlying the link between prenatal nicotine exposure (PNE) and ADHD are not well understood. Animal models, especially rodent models, are beginning to bridge this gap in knowledge. Although ADHD is characterized by hyperactivity, inattention, impulsivity and working memory deficits, the majority of the animal models are based on only one or two ADHD associated phenotypes, in particular, hyperactivity or inattention...
February 4, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28167051/does-dual-tasking-ability-change-with-age-across-childhood-and-adolescence-a-systematic-scoping-review
#3
REVIEW
Shikha Saxena, Eda Cinar, Annette Majnemer, Isabelle Gagnon
The aim of this literature search was to identify nature and extent of the evidence supporting the development of dual tasking skills in typically developing children. We systematically searched PsycINFO, Ovid and Pubmed for studies evaluating dual task performances of children and adolescents<18 years of age. 31 studies published in English from 1990 to 2016 were included. A descriptive analysis was used for data extraction and charting. Study findings reported that age influenced dual task performances under difficult or complex task conditions but they were found to be inconclusive when the tasks were equated at everyone's difficulty level...
February 3, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28161254/pharmacological-inhibition-of-dna-methyltransferase-1-promotes-neuronal-differentiation-from-rodent-and-human-nasal-olfactory-stem-progenitor-cell-cultures
#4
I Franco, L Ortiz-López, B Roque-Ramírez, G B Ramírez-Rodríguez, M Lamas
Nasal olfactory stem and neural progenitor cells (NOS/PCs) are considered possible tools for regenerative stem cell therapies in neurodegenerative diseases. Neurogenesis is a complex process regulated by extrinsic and intrinsic signals that include DNA-methylation and other chromatin modifications that could be experimentally manipulated in order to increase neuronal differentiation. The aim of the present study was the characterization of primary cultures and consecutive passages (P2-P10) of NOS/PCs isolated from male Swiss-Webster (mNOS/PCs) or healthy humans (hNOS/PCs)...
February 1, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28153524/cellular-protein-and-mrna-expression-of-%C3%AE-1-nicotinic-acetylcholine-receptor-nachr-subunit-in-brain-skeletal-muscle-and-placenta
#5
Atqiya Aishah, Tina Hinton, Rita Machaalani
The β1 nicotinic acetylcholine receptor (nAChR) subunit is a muscle type subunit of this family and as such, is found predominantly in muscle. Recent reports document its expression in other tissues and cell lines including adrenal glands, carcinomas, lung and brain. However, the majority of studies were of tissue lysates, thus the cellular distribution was not determined. This study aimed to determine the cellular distribution of the β1 nAChR subunit in the brain, at both the mRNA and protein levels, using non-radioactive in situ hybridization (ISH) and immunohistochemistry (IHC), respectively, and to compare it to two muscle tissue types, skeletal and placenta...
January 30, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28130065/measuring-neuroplasticity-associated-with-cerebral-palsy-rehabilitation-an-mri-based-power-analysis
#6
Lee B Reid, Alex M Pagnozzi, Simona Fiori, Roslyn N Boyd, Nicholas Dowson, Stephen E Rose
Researchers in the field of child neurology are increasingly looking to supplement clinical trials of motor rehabilitation with neuroimaging in order to better understand the relationship between behavioural training, brain changes, and clinical improvements. Randomised controlled trials are typically accompanied by sample size calculations to detect clinical improvements but, despite the large cost of neuroimaging, not equivalent calculations for concurrently acquired imaging neuroimaging measures of changes in response to intervention...
January 24, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28122258/effects-of-early-or-late-prenatal-immune-activation-in-mice-on-behavioral-and-neuroanatomical-abnormalities-relevant-to-schizophrenia-in-the-adulthood
#7
Vivian T da Silveira, Daniel de Castro Medeiros, Jivago Ropke, Patricia A Guidine, Gustavo H Rezende, Marcio Flavio D Moraes, Eduardo Mazoni A M Mendes, Danielle Macedo, Fabricio A Moreira, Antonio Carlos P de Oliveira
Maternal immune activation (MIA) during pregnancy in rodents increases the risk of the offspring to develop schizophrenia-related behaviors, suggesting a relationship between the immune system and the brain development. Here we tested the hypothesis that MIA induced by the viral mimetic polyinosinic-polycytidylic acid (poly I:C) in early or late gestation of mice leads to behavioral and neuroanatomical disorders in the adulthood. On gestational days (GDs) 9 or 17 pregnant dams were treated with poly I:C or saline via intravenous route and the offspring behaviors were measured during adulthood...
January 22, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28119021/reduced-relative-volume-in-motor-and-attention-regions-in-developmental-coordination-disorder-a-voxel-based-morphometry-study
#8
Jess E Reynolds, Melissa K Licari, Siobhan L Reid, Catherine Elliott, Anne M Winsor, Michael Bynevelt, Jac Billington
BACKGROUND AND OBJECTIVES: Developmental coordination disorder (DCD) is a prevalent childhood movement disorder, impacting the ability to perform movement skills at an age appropriate level. Although differences in grey matter (GM) volumes have been found in related developmental disorders, no such evidence has been linked with DCD to date. This cross-sectional study assessed structural brain differences in children with and without DCD. METHODS: High-resolution structural images were acquired from 44 children aged 7...
January 21, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28111255/delayed-treatment-of-6-bromoindirubin-3-oxime-stimulates-neurogenesis-and-functional-recovery-after-focal-ischemic-stroke-in-mice
#9
Li-Li Wang, Jimei Li, Xiaohuan Gu, Ling Wei, Shan Ping Yu
Glycogen synthase kinase 3β (GSK3β) was originally identified as a regulator for glycogen metabolism and is now an important therapeutic target for a variety of brain disorders including neurodegenerative diseases due to it's pivotal role in cellular metabolism, proliferation and differentiation. In the development of stroke therapies focusing on tissue repair and functional recovery, promoting neurogenesis is a main approach in regenerative medicine. In the present investigation, we explored the effects of a GSK3β specific inhibitor, 6-Bromoindirubin-3'-oxime (BIO), on regenerative activities of neuroblasts in the subventricular zone (SVZ) and functional recovery after focal cerebral ischemia...
January 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28111254/neonatal-blockade-of-gaba-a-receptors-alters-behavioral-and-physiological-phenotypes-in-adult-mice
#10
Ali-Akbar Salari, Mohammad Amani
Gamma-aminobutyric acid (GABA) plays an inhibitory role in the mature brain, and has a complex and bidirectional effect in different parts of the immature brain which affects proliferation, migration and differentiation of neurons during development. There is also increasing evidence suggesting that activation or blockade of the GABA-A receptors during early life can induce brain and behavioral abnormalities in adulthood. We investigated whether neonatal blockade of the GABA-A receptors by bicuculline can alter anxiety- and depression-like behaviors, body weight, food intake, corticosterone and testosterone levels in adult mice (postnatal days 80-95)...
January 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28104460/fetal-growth-retardation-and-brain-sparing-by-malnutrition-are-associated-to-changes-in-neurotransmitters-profile
#11
C García-Contreras, D Valent, M Vázquez-Gómez, L Arroyo, B Isabel, S Astiz, A Bassols, A Gonzalez-Bulnes
The present study assesses possible changes in the levels of different neurotransmitters (catecholamines and indoleamines) in fetuses affected by nutrient shortage. Hence, we determined the concentration of catecholamines and indoleamines at the hypothalamus of 56 swine fetuses obtained at both 70 and 90days of pregnancy (n=33 and 23 fetuses, respectively). The degree of fetal development and the fetal sex affected the neurotransmitters profile at both stages. At Day 70, there were found higher mean concentrations of l-DOPA in both female and male fetuses with severe IUGR; male fetuses with severe IUGR also showed higher concentrations of TRP than normal male littermates...
January 16, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28099880/modifications-of-inhibitory-transmission-onto-pyramidal-neurons-by-postnatal-exposure-to-mk-801-effects-of-enriched-environment
#12
Amir Shojaei, Afsaneh Kamali Anaraki, Javad Mirnajafi-Zadeh, Nafiseh Atapour
Early enriched environment (EE) prevents several deficits associated with postnatal MK-801 [N-Methyl-d-Aspartate (NMDA) receptor antagonist] treatment such as cognitive and locomotor deficits. We sought physiological correlates to such changes by looking at inhibitory synaptic inputs onto pyramidal cells in a prefrontal cortex slice preparation. Pharmacologically isolated γ-amino-butyric acid A (GABAA) receptor-mediated currents were measured using whole-cell patch clamp recordings. Wistar rats were raised in standard or EE from birth up to the time of experiments and were injected with saline or MK-801 (1mg/kg) on postnatal days (P) 6-10...
January 15, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28088366/serum-levels-of-glial-fibrillary-acidic-protein-in-chinese-children-with-autism-spectrum-disorders
#13
Jingwei Wang, Qiuyan Zou, Renfeng Han, Yupeng Li, Yulin Wang
OBJECTIVE: Glial fibrillary acidic protein (GFAP) has been studied in many neurological diseases. The purpose of this study is to investigate the potential role of GFAP in Chinese children with autism spectrum disorders (ASD) by measuring serum circulating levels of GFAP and comparing them with age and gender-matched typical development children. METHODS: A total of one hundred and fifty 2-6 years old Chinese children (75 confirmed autism cases and 75 their age-gender matched typical development children) participated in this study...
January 11, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28088365/stem-cells-for-als-an-overview-of-possible-therapeutic-approaches
#14
REVIEW
Joanna Czarzasta, Aleksandra Habich, Tomasz Siwek, Adam Czapliński, Wojciech Maksymowicz, Joanna Wojtkiewicz
Amyotrophic lateral sclerosis (ALS) is an unusual, fatal, neurodegenerative disorder leading to the loss of motor neurons. After diagnosis, the average lifespan ranges from 3 to 5 years, and death usually results from respiratory failure. Although the pathogenesis of ALS remains unclear, multiple factors are thought to contribute to the progression of ALS, such as network interactions between genes, environmental exposure, impaired molecular pathways and many others. The neuroprotective properties of neural stem cells (NSCs) and the paracrine signaling of mesenchymal stem cells (MSCs) have been examined in multiple pre-clinical trials of ALS with promising results...
January 11, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28065748/the-effects-of-early-life-stress-on-dopamine-system-function-in-adolescent-female-rats
#15
Iwona Majcher-Maślanka, Anna Solarz, Krzysztof Wędzony, Agnieszka Chocyk
During adolescence, many neural systems, including the dopamine system, undergo essential remodeling and maturation. It is well known that early-life stress (ELS) increases the risk for many psychopathologies during adolescence and adulthood. It is hypothesized that ELS interferes with the maturation of the dopamine system. There is a sex bias in the prevalence of stress-related mental disorders. Information regarding the effects of ELS on brain functioning in females is very limited. In the current study, maternal separation (MS) procedures were carried out to study the effects of ELS on dopamine system functioning in adolescent female rats...
January 5, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28049028/morphine-exposure-during-early-life-alters-thermal-and-mechanical-thresholds-in-rats
#16
Ellen A Nunes, Liciane Fernandes Medeiros, Joice Soares de Freitas, Isabel Cristina Macedo, Jonnsin Kuo, Andressa de Souza, Joanna Rippol Rozisky, Wolnei Caumo, Iraci L S Torres
BACKGROUND: Morphine is an opioid analgesic used to relieve moderate-to-severe pain, including pain in neonates at the intensive care unit. In our previous study, we showed that repeated morphine exposure during early life could trigger long-lasting implications on the developing nervous system, such as long-term neurochemical and behavioral alterations in adult rats. AIMS: The aim of our study was to determine the short-, intermediate-, and long-term effects of repeated morphine administration during early life on the thermal and mechanical thresholds and on the central levels (cerebral cortex and brainstem) of neurotrophins (brain-derived neurotrophic factor [BDNF] and nerve growth factor [NGF]) and cytokines (interleukin-6 [IL-6] and IL-10)...
December 31, 2016: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28043894/propionic-acid-metabolism-asd-and-vitamin-b12-is-there-a-role-for-environmental-nitrous-oxide
#17
Keith Fluegge
Foley et al. (2014) published their findings in this journal on the role of prenatal exposure to propionic acid (PPA) and behavioral outcomes in treated rat pups. The authors show that PPA treated pups displayed subtle differences in behavior including nest seeking, novel object recognition, and locomotor activity. Others have previously proposed that PPA infusion in rat could represent a valid animal model of ASD since many of the diagnostic criteria for the disorder spectrum manifest under such conditions...
December 30, 2016: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28040491/temporal-processsing-demands-in-the-hiv-1-transgenic-rat-amodal-gating-and-implications-for-diagnostics
#18
Kristen A McLaurin, Rosemarie M Booze, Charles F Mactutus
Despite the success of combination antiretroviral therapy (cART), approximately 50% of HIV-1 seropositive individuals develop HIV-1 associated neurocognitive disorders (HAND). Unfortunately, point-of-care screening tools for HAND lack sensitivity and specificity, especially in low-resource countries. Temporal processing deficits have emerged as a critical underlying dimension of neurocognitive impairments observed in HIV-1 and may provide a key target for the development of a novel point-of-care screening tool for HAND...
December 28, 2016: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28039090/effects-of-previous-physical-exercise-to-chronic-stress-on-long-term-aversive-memory-and-oxidative-stress-in-amygdala-and-hippocampus-of-rats
#19
Tiago Marcon Dos Santos, Janaína Kolling, Cassiana Siebert, Helena Biasibetti, Carolina Gessinger Bertó, Lucas Kich Grun, Carla Dalmaz, Florencia María Barbé-Tuana, Angela T S Wyse
Since stressful situations are considered risk factors for the development of depression and there are few studies evaluating prevention therapies for this disease, in the present study we evaluated the effect of previous physical exercise in animals subjected to chronic variable stress (CVS), an animal model of depression, on behavior tasks. We also investigated some parameters of oxidative stress and Na(+), K(+)-ATPase activity, immunocontent and gene expression of alpha subunits in amygdala and hippocampus of rats...
December 27, 2016: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28034769/sfpq-associates-to-lsd1-and-regulates-the-migration-of-newborn-pyramidal-neurons-in-the-developing-cerebral-cortex
#20
K Saud, J Cánovas, C I Lopez, F A Berndt, E López, J C Maass, A Barriga, M Kukuljan
The development of the cerebral cortex requires the coordination of multiple processes ranging from the proliferation of progenitors to the migration and establishment of connectivity of the newborn neurons. Epigenetic regulation carried out by the COREST/LSD1 complex has been identified as a mechanism that regulates the development of pyramidal neurons of the cerebral cortex. We now identify the association of the multifunctional RNA-binding protein SFPQ to LSD1 during the development of the cerebral cortex...
December 26, 2016: International Journal of Developmental Neuroscience
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