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Neurobehavior

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https://www.readbyqxmd.com/read/28642137/overexpression-cdc42-attenuates-isoflurane-induced-neurotoxicity-in-developmental-brain-of-rats
#1
Xi Fang, Shiyong Li, Qiang Han, Yilin Zhao, Jie Gao, Jing Yan, Ailin Luo
Nowadays many children receive operations with general anesthesia. Isoflurane is a commonly-used general anesthetic. Numbers of studies demonstrated that isoflurane induced neurotoxicity and neurobehavioral deficiency in young rats, however, the underlying mechanism remained unknown. Cell division cycle 42 (cdc42) played an important role in regulating synaptic vesicle trafficking and actin dynamics in neuron, which closely linked to synaptic plasticity and dendritic spine formation. Meanwhile, cdc42 also involved in many neurodegenerative diseases...
June 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28642080/impact-of-juvenile-chronic-stress-on-adult-cortico-accumbal-function-implications-for-cognition-and-addiction
#2
REVIEW
Michael J Watt, Matthew A Weber, Shaydel R Davies, Gina L Forster
Repeated exposure to stress during childhood is associated with increased risk for neuropsychiatric illness, substance use disorders and other behavioral problems in adulthood. However, it is not clear how chronic childhood stress can lead to emergence of such a wide range of symptoms and disorders in later life. One possible explanation lies in stress-induced disruption to the development of specific brain regions associated with executive function and reward processing, deficits in which are common to the disorders promoted by childhood stress...
June 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28641491/nicotine-and-cigarette-smoke-modulate-nrf2-bdnf-dopaminergic-signal-and-neurobehavioral-disorders-in-adult-rat-cerebral-cortex
#3
Nibedita Naha, D N Gandhi, A K Gautam, J Ravi Prakash
BACKGROUND: Nicotine and cigarette smoking (CS) are associated with addiction behavior, drug-seeking, and abuse. However, the mechanisms that mediate this association especially, the role of brain-derived neurotrophic factor (BDNF), dopamine (DA), and nuclear factor erythroid 2-related factor 2 (Nrf2) signaling in the cerebral cortex, are not fully known. Therefore, we hypothesized that overexpression of BDNF and DA, and suppression of Nrf2 contribute to several pathological and behavioral alterations in adult cerebral cortex...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28638328/protocol-for-the-reconstructing-consciousness-and-cognition-reccognition-study
#4
Kaitlyn L Maier, Andrew R McKinstry-Wu, Ben Julian A Palanca, Vijay Tarnal, Stefanie Blain-Moraes, Mathias Basner, Michael S Avidan, George A Mashour, Max B Kelz
Important scientific and clinical questions persist about general anesthesia despite the ubiquitous clinical use of anesthetic drugs in humans since their discovery. For example, it is not known how the brain reconstitutes consciousness and cognition after the profound functional perturbation of the anesthetized state, nor has a specific pattern of functional recovery been characterized. To date, there has been a lack of detailed investigation into rates of recovery and the potential orderly return of attention, sensorimotor function, memory, reasoning and logic, abstract thinking, and processing speed...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28635664/adolescent-exposure-to-the-synthetic-cannabinoid-win-55212-2-modifies-cocaine-withdrawal-symptoms-in-adult-mice
#5
María A Aguilar, Juan Carlos Ledesma, Marta Rodríguez-Arias, Carles Penalva, Carmen Manzanedo, José Miñarro, M Carmen Arenas
Chronic cannabinoid consumption is an increasingly common behavior among teenagers and has been shown to cause long-lasting neurobehavioral alterations. Besides, it has been demonstrated that cocaine addiction in adulthood is highly correlated with cannabis abuse during adolescence. Cocaine consumption and subsequent abstinence from it can cause psychiatric symptoms, such as psychosis, cognitive impairment, anxiety, and depression. The aim of the present research was to study the consequences of adolescent exposure to cannabis on the psychiatric-like effects promoted by cocaine withdrawal in adult mice...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28634776/evidence-supporting-the-internal-validity-of-the-proposed-nd-pae-disorder
#6
Julie A Kable, Claire D Coles
The internal validity of the proposed Neurobehavioral Disorder Associated with Prenatal Alcohol Exposure (ND-PAE) was evaluated in children diagnosed with either Fetal Alcohol Syndrome (FAS) or partial FAS who were 3-10 years of age and had enrolled in a math intervention study. Symptoms were coded as present or absent using assessments conducted in the study, including standardized measures of neurocognitive and behavioral functioning, parent interview, and direct observations of the child. The number of endorsed ND-PAE symptoms was not related to environmental factors but was moderately related to the child's age...
June 20, 2017: Child Psychiatry and Human Development
https://www.readbyqxmd.com/read/28634441/roles-of-pannexin-1-channels-in-inflammatory-response-through-the-tlrs-nf-kappa-b-signaling-pathway-following-experimental-subarachnoid-hemorrhage-in-rats
#7
Ling-Yun Wu, Zhen-Nan Ye, Chen-Hui Zhou, Chun-Xi Wang, Guang-Bin Xie, Xiang-Sheng Zhang, Yong-Yue Gao, Zi-Huan Zhang, Meng-Liang Zhou, Zong Zhuang, Jing-Peng Liu, Chun-Hua Hang, Ji-Xin Shi
Background: Accumulating evidence suggests that neuroinflammation plays a critical role in early brain injury after subarachnoid hemorrhage (SAH). Pannexin-1 channels, as a member of gap junction proteins located on the plasma membrane, releases ATP, ions, second messengers, neurotransmitters, and molecules up to 1 kD into the extracellular space, when activated. Previous studies identified that the opening of Pannexin-1 channels is essential for cellular migration, apoptosis and especially inflammation, but its effects on inflammatory response in SAH model have not been explored yet...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28630251/valnoctamide-inhibits-cytomegalovirus-infection-in-developing-brain-and-attenuates-neurobehavioral-dysfunctions-and-brain-abnormalities
#8
Sara Ornaghi, Lawrence S Hsieh, Angélique Bordey, Patrizia Vergani, Michael J Paidas, Anthony N van den Pol
Cytomegalovirus (CMV) is the most common infectious cause of brain defects and neurological dysfunction in developing human babies. Due to the teratogenicity and toxicity of available CMV antivirals, treatment options during early development are markedly limited. Valnoctamide (VCD), a neuroactive mood stabilizer with no known teratogenic activity, was recently demonstrated to have anti-CMV potential. However, it is not known whether this can be translated into an efficacious therapeutic effect to improve CMV-induced adverse neurological outcomes...
June 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28629990/employment-stability-in-veterans-and-service-members-with-traumatic-brain-injury-a-va-traumatic-brain-injury-model-systems-study
#9
Christina Dillahunt-Aspillaga, Mary Jo Pugh, Bridget A Cotner, Marc A Silva, Adam Haskin, Xinyu Tang, Marie E Saylors, Risa Nakase-Richardson
OBJECTIVE: To examine incidence and predictors of employment stability in Veterans and Military Service Members (V/SM) with traumatic brain injury (TBI) who return to work. DESIGN: Prospective observational cohort study. SETTING: Four Department of Veterans Affairs (VA) Polytrauma Rehabilitation Centers (PRCs). PARTICIPANTS: 110 V/SM with mild (26%), moderate (22%), or severe (52%) TBI enrolled in the VA PRC TBI Model Systems database within 2 years of injury who were discharged between January 2009 and June 2015...
June 16, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28629741/establishment-of-an-ideal-time-window-model-in-hypothermic-targeted-temperature-management-after-traumatic-brain-injury-in-rats
#10
Wan-Yong Zhao, Shao-Bo Chen, Jing-Jing Wang, Chao Xu, Ming-Liang Zhao, Hua-Jiang Dong, Hai-Qian Liang, Xiao-Hong Li, Yue Tu, Sai Zhang, Chong Chen, Hong-Tao Sun
Although hypothermic-targeted temperature management (HTTM) holds great potential for the treatment of traumatic brain injury (TBI), translation of the efficacy of hypothermia from animal models to TBI patientshas no entire consistency. This study aimed to find an ideal time window model in experimental rats which was more in accordance with clinical practice through the delayed HTTM intervention. Sprague-Dawley rats were subjected to unilateral cortical contusion injury and received therapeutic hypothermia at 15 mins, 2 hours, 4 hours respectively after TBI...
June 16, 2017: Brain Research
https://www.readbyqxmd.com/read/28625925/vanadium-exposure-induced-striatal-learning-and-memory-alterations-in-rats
#11
Liping Sun, Keyue Wang, Yan Li, Qiyuan Fan, Wei Zheng, Hong Li
Occupational and environmental exposure to vanadium has been associated with toxicities in reproductive, respiratory, and cardiovascular systems. The knowledge on whether and how vanadium exposure caused neurobehavioral changes remains incomplete. This study was designed to investigate the changes in learning and memory following drinking water exposure to vanadium, and to conduct the preliminary study on underlying mechanisms. Male Sprague-Dawley rats were exposed to vanadium dissolved in drinking water at the concentration of 0...
June 15, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28625210/household-everyday-functioning-in-the-internet-age-online-shopping-and-banking-skills-are-affected-in-hiv-associated-neurocognitive-disorders
#12
Steven Paul Woods, Jennifer E Iudicello, Erin E Morgan, Marizela Verduzco, Tyler V Smith, Clint Cushman
OBJECTIVES: The Internet is a fundamental tool for completing many different instrumental activities of daily living (IADL), including shopping and banking. Persons with HIV-associated Neurocognitive Disorders (HAND) are at heightened risk for IADL problems, but the extent to which HAND interferes with the performance of Internet-based household IADLs is not known. METHODS: Ninety-three individuals with HIV disease, 43 of whom were diagnosed with HAND, and 42 HIV- comparison participants completed Internet-based tests of shopping and banking...
June 19, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28624747/who-is-most-affected-by-prenatal-alcohol-exposure-boys-or-girls
#13
Philip A May, Barbara Tabachnick, Julie M Hasken, Anna-Susan Marais, Marlene M de Vries, Ronel Barnard, Belinda Joubert, Marise Cloete, Isobel Botha, Wendy O Kalberg, David Buckley, Zachary R Burroughs, Heidre Bezuidenhout, Luther K Robinson, Melanie A Manning, Colleen M Adnams, Soraya Seedat, Charles D H Parry, H Eugene Hoyme
OBJECTIVE: To examine outcomes among boys and girls that are associated with prenatal alcohol exposure. METHODS: Boys and girls with fetal alcohol spectrum disorders (FASD) and randomly-selected controls were compared on a variety of physical and neurobehavioral traits. RESULTS: Sex ratios indicated that heavy maternal binge drinking may have significantly diminished viability to birth and survival of boys postpartum more than girls by age seven...
June 15, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28624433/the-highs-and-lows-of-the-human-brain-on-dopaminergics-evidence-from-neuropharmacology
#14
REVIEW
Daniel Martins, Mitul A Mehta, Diana Prata
Rewards are appetitive events that elicit approach. Ground-breaking findings from neurophysiological experiments in animals, alongside neuropharmacology and neuroimaging research in human samples have identified dopamine as the main neurochemical messenger of global reward processing in the brain. However, dopamine's contribution to the different components of reward processing remains to be precisely defined. To facilitate the informed design and interpretation of reward studies in humans, we have systematically reviewed all existing human pharmacological studies investigating how drug manipulation of the dopamine system affects reward-related behaviour and its neural correlates...
June 15, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28622594/the-role-of-apitoxin-in-alleviating-propionic-acid-induced-neurobehavioral-impairments-in-rat-pups-the-expression-pattern-of-reelin-gene
#15
Maha H Daghestani, Manar E Selim, Yasmina M Abd-Elhakim, Enas N Said, Noura E Abd El-Hameed, Samah R Khalil, Osama S El-Tawil
The efficacy of apitoxin (bee venom; BV) in ameliorating propionic acid (PPA) -induced neurobehavioral impacts was studied. Sixty rat pups were enrolled in a split litter design to six groups: a control group, a PPA-treated group, a BV-treated group, a BV/PPA protective group, a PPA/BV therapeutic group, and a BV/PPA/BV protective and therapeutic group. Exploratory, social, locomotor, and repetitive/stereotype-like activities were assessed and prosocial, empathy, and acquired behavior were evaluated. Levels of neurotransmitter including serotonin, dopamine, and gamma-aminobutyric acid (GABA) were determined and a quantitative analysis of Reelin gene expression was performed...
June 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28620347/neural-consequences-of-chronic-short-sleep-reversible-or-lasting
#16
REVIEW
Zhengqing Zhao, Xiangxiang Zhao, Sigrid C Veasey
Approximately one-third of adolescents and adults in developed countries regularly experience insufficient sleep across the school and/or work week interspersed with weekend catch up sleep. This common practice of weekend recovery sleep reduces subjective sleepiness, yet recent studies demonstrate that one weekend of recovery sleep may not be sufficient in all persons to fully reverse all neurobehavioral impairments observed with chronic sleep loss, particularly vigilance. Moreover, recent studies in animal models demonstrate persistent injury to and loss of specific neuron types in response to chronic short sleep (CSS) with lasting effects on sleep/wake patterns...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28620279/interleukin-6-deficiency-attenuates-retinal-ganglion-cell-axonopathy-and-glaucoma-related-vision-loss
#17
Franklin D Echevarria, Cathryn R Formichella, Rebecca M Sappington
The pleotropic cytokine interleukin-6 (IL-6) is implicated in retinal ganglion cell (RGC) survival and degeneration, including that associated with glaucoma. IL-6 protects RGCs from pressure-induced apoptosis in vitro. However, it is unknown how IL-6 impacts glaucomatous degeneration in vivo. To study how IL-6 influences glaucomatous RGC axonopathy, accompanying glial reactivity, and resultant deficits in visual function, we performed neural tracing, histological, and neurobehavioral assessments in wildtype (B6;129SF2/J; WT) and IL-6 knock-out mice (B6;129S2-IL6(t)(m1kopf)/J; IL-6-/-) after 8 weeks of unilateral or bilateral microbead-induced glaucoma (microbead occlusion model)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28620235/a-non-ionotropic-activity-of-nmda-receptors-contributes-to-glycine-induced-neuroprotection-in-cerebral-ischemia-reperfusion-injury
#18
Juan Chen, Rong Hu, Huabao Liao, Ya Zhang, Ruixue Lei, Zhifeng Zhang, Yang Zhuang, Yu Wan, Ping Jin, Hua Feng, Qi Wan
NMDA receptor (NMDAR) is known for its ionotropic function. But recent evidence suggests that NMDAR also has a non-ionotropic property. To determine the role of non-ionotropic activity of NMDARs in clinical relevant conditions, we tested the effect of glycine, a co-agonist of NMDARs, in rat middle cerebral artery occlusion (MCAO), an animal model of cerebral ischemia-reperfusion injury after the animals were injected with the NMDAR channel blocker MK-801 and the glycine receptor antagonist strychnine. We show that glycine reduces the infarct volume in the brain of ischemic stroke animals pre-injected with MK-801 and strychnine...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28619286/neuroprotective-potential-of-aloe-arborescens-against-copper-induced-neurobehavioral-features-of-parkinson-s-disease-in-rat
#19
Abdellatif Abbaoui, Omar El Hiba, Halima Gamrani
Copper (Cu) is an important trace element for the organism survival, which ensures the normal functioning of different biosystems. However, excessive levels of this heavy metal are responsible for profound physiological alterations including the central nervous system. Numerous findings sustain the involvement of heavy metals, as an environmental risk factor such as copper (Cu), in the neuropathology of Parkinson's disease (PD) which is a chronic neurodegenerative disorder that principally affects the motor system...
June 12, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28616094/arbaclofen-in-fragile-x-syndrome-results-of-phase-3-trials
#20
Elizabeth Berry-Kravis, Randi Hagerman, Jeannie Visootsak, Dejan Budimirovic, Walter E Kaufmann, Maryann Cherubini, Peter Zarevics, Karen Walton-Bowen, Paul Wang, Mark F Bear, Randall L Carpenter
BACKGROUND: Arbaclofen improved multiple abnormal phenotypes in animal models of fragile X syndrome (FXS) and showed promising results in a phase 2 clinical study. The objective of the study is to determine safety and efficacy of arbaclofen for social avoidance in FXS. METHODS: Two phase 3 placebo-controlled trials were conducted, a flexible dose trial in subjects age 12-50 (209FX301, adolescent/adult study) and a fixed dose trial in subjects age 5-11 (209FX302, child study)...
2017: Journal of Neurodevelopmental Disorders
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