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https://www.readbyqxmd.com/read/28320189/tempol-4-hydroxy-tempo-inhibits-anoxia-induced-progression-of-mitochondrial-dysfunction-and-associated-neurobehavioral-impairment-in-neonatal-rats
#1
Puneet K Samaiya, Gopeshwar Narayan, Ashok Kumar, Sairam Krishnamurthy
BACKGROUND: Anoxia leads to a robust generation of reactive oxygen species/nitrogen species which can result in mitochondrial dysfunction and associated cell death in the cerebral cortex of neonates. AIM: The present study investigated the pharmacological role of tempol in the treatment of rat neonatal cortical mitochondrial dysfunction induced insult progression (day-1 to day-7) and associated neurobehavioral alterations post-anoxia. METHODS: Rat pups of 30h age or postnatal day 2 (PND2) were randomly divided into 5 groups (n=5 per group): (1) Control; (2) Anoxia; (3) Anoxia+Tempol 75mg/kg; (4) Anoxia+Tempol 150mg/kg; and (5) Anoxia+Tempol 300mg/kg, and subjected to two episode of anoxia (10min each) at 24h of time interval in an enclosed chamber supplied with 100% N2...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319548/tanshinone-iia-attenuates-sevoflurane-neurotoxicity-in-neonatal-mice
#2
Yimeng Xia, Heng Xu, Chenfei Jia, Xiaodong Hu, Yu Kang, Xiaoxuan Yang, Qingsheng Xue, Guorong Tao, Buwei Yu
BACKGROUND: Sevoflurane is the most widely used inhalational anesthetic in pediatric medicine. Despite this, sevoflurane has been reported to exert potentially neurotoxic effects on the developing brain. Clinical interventions and treatments for these effects are limited. Tanshinone IIA (Tan IIA), extracted from Salvia miltiorrhiza (Danshen), has been documented to alleviate cognitive decline in traditional applications. Therefore, we hypothesized that preadministration of Tan IIA may attenuate sevoflurane-induced neurotoxicity, suggesting that Tan IIA is a new and promising drug capable of counteracting the effects of cognitive dysfunction produced by general anesthetics...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28318366/a-composite-neurobehavioral-test-to-evaluate-acute-functional-deficits-after-cerebellar-haemorrhage-in-rats
#3
Devin W McBride, Derek Nowrangi, Harpreet Kaur, Guangyong Wu, Lei Huang, Tim Lekic, Jiping Tang, John H Zhang
Cerebellar haemorrhage accounts for 5-10% of all intracerebral haemorrhages and leads to severe, long-lasting functional deficits. Currently, there is limited research on this stroke subtype, which may be due to the lack of a suitable composite neuroscoring system specific for cerebellar injury in rodents. The purpose of this study is to develop a comprehensive composite neuroscore test for cerebellar injury using a rat model of cerebellar haemorrhage. Sixty male Sprague-Dawley rats were subjected to either sham surgery or cerebellar haemorrhage...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28315981/the-development-of-severe-and-chronic-violence-among-youth-the-role-of-psychopathic-traits-and-reward-processing
#4
Dennis E Reidy, Elizabeth Krusemark, David S Kosson, Megan C Kearns, Joanne Smith-Darden, Kent A Kiehl
Psychopathic traits are a manifestation of a personality pathology that comprises a core affective-interpersonal dysfunction (callous-unemotional traits) and an impulsive-antisocial behavioral component. Of particular importance, psychopathic traits are associated with the perpetration of some of the most severe acts of violence, and they appear to indicate a subset of youth at risk for earlier onset, greater frequency, and persistence of violent offending. Although these youth represent a minority of the population, they commit a significant proportion of the violence in the general community...
March 18, 2017: Child Psychiatry and Human Development
https://www.readbyqxmd.com/read/28314862/epidemiology-and-prognosis-of-mild-traumatic-brain-injury-in-returning-soldiers-a-cohort-study
#5
Karen Schwab, Heidi P Terrio, Lisa A Brenner, Renee M Pazdan, Henry P McMillan, Margaret MacDonald, Sidney R Hinds, Ann I Scher
OBJECTIVE: Mild traumatic brain injury (mTBI; concussion) is common in returning service members yet limited definitive evidence exists on its prognosis. METHODS: Almost 25,000 non-medically evacuated soldiers returning from Afghanistan or Iraq to 2 military bases between 2009 and 2014 were screened for mTBI. We invited a random sample to participate in the present study, oversampling those screening positive, resulting in 557 mTBI cases and 1,010 controls, of whom 366 cases and 599 controls completed 3-month follow-up evaluations...
March 17, 2017: Neurology
https://www.readbyqxmd.com/read/28301980/an-investigation-of-intra-individual-variability-in-children-with-fetal-alcohol-spectrum-disorder-fasd
#6
Sheliza Ali, Kimberly A Kerns, Bryce P Mulligan, Heather Carmichael Olson, Susan J Astley
Intra-individual variability (IIV) is defined as systematic within-person variation in performance either across test sessions (e.g., test/retest performance on the same task) or in one session (e.g., variations in performance on multiple trials of a single task). Higher levels of IIV have been noted as a characteristic of neurodevelopmental disorders such as attention deficit/hyperactivity disorder​ (ADHD), but IIV is yet to be investigated in fetal alcohol spectrum disorder (FASD). FASD is a term used to describe a range of conditions resulting from prenatal exposure to alcohol...
March 16, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
https://www.readbyqxmd.com/read/28301775/the-microbiome-and-host-behavior
#7
Helen E Vuong, Jessica M Yano, Thomas C Fung, Elaine Y Hsiao
The microbiota is increasingly recognized for its ability to influence the development and function of the nervous system and several complex host behaviors. In this review, we discuss emerging roles for the gut microbiota in modulating host social and communicative behavior, stressor-induced behavior, and performance in learning and memory tasks. We summarize effects of the microbiota on host neurophysiology, including brain microstructure, gene expression, and neurochemical metabolism across regions of the amygdala, hippocampus, frontal cortex, and hypothalamus...
March 8, 2017: Annual Review of Neuroscience
https://www.readbyqxmd.com/read/28292872/targeting-different-monocyte-macrophage-subsets-has-no-impact-on-outcome-in-experimental-stroke
#8
Antje Schmidt, Jan-Kolja Strecker, Stephanie Hucke, Nils-Martin Bruckmann, Martin Herold, Matthias Mack, Kai Diederich, Wolf-Rüdiger Schäbitz, Heinz Wiendl, Luisa Klotz, Jens Minnerup
BACKGROUND AND PURPOSE: Peripheral immune cell infiltration contributes to neural injury after ischemic stroke. However, in contrast to lymphocytes and neutrophils, the role of different monocyte/macrophage subsets remains to be clarified. Therefore, we evaluated the effects of selective and unselective monocyte/macrophage depletion and proinflammatory (M1-) and anti-inflammatory (M2-) macrophage transfer on the outcome after experimental cerebral ischemia. METHODS: To assess short-term effects of monocytes/macrophages in acute ischemic stroke, mice underwent transient middle cerebral artery occlusion and received either clodronate liposomes for unselective macrophage depletion, MC-21-antibody for selective depletion of proinflammatory Ly-6C(high) monocytes, or proinflammatory (M1-) or anti-inflammatory (M2-) macrophage transfer...
March 14, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28291777/adolescent-but-not-adult-ethanol-binge-drinking-modulates-cocaine-withdrawal-symptoms-in-mice
#9
Juan Carlos Ledesma, Maria A Aguilar, Pablo Giménez-Gómez, José Miñarro, Marta Rodríguez-Arias
BACKGROUND: Ethanol (EtOH) binge drinking is an increasingly common behavior among teenagers that induces long-lasting neurobehavioral alterations in adulthood. An early history of EtOH abuse during adolescence is highly correlated with cocaine addiction in adulthood. Abstinence of cocaine abuse can cause psychiatric symptoms, such as anxiety, psychosis, depression, and cognitive impairments. This study assessed the consequences of adolescent exposure to EtOH on the behavioral alterations promoted by cocaine withdrawal in adulthood...
2017: PloS One
https://www.readbyqxmd.com/read/28291734/safety-assessment-of-the-aqueous-extract-of-the-flowers-of-nymphaea-lotus-linn-nymphaeaceae-acute-neuro-and-subchronic-oral-toxicity-studies-in-albinos-wistar-rats
#10
Mireille Kameni Poumeni, Danielle Claude Bilanda, Paul Désiré Dzeufiet Djomeni, Yolande Sandrine Mengue Ngadena, Marguerite Francine Mballa, Madeleine Chantal Ngoungoure, Agnès Carolle Ouafo, Théophile Dimo, Pierre Kamtchouing
BACKGROUND: Nymphaea lotus Linn (N. lotus) is a medicinal plant widely used in Cameroon popular medicine, to treat neuropsychiatric conditions, male sexual disorders or as food supplement. However, scientific data on the pharmacotoxic profile of this plant are not available. The safety of N. lotus was assessed in acute, neuro- and subchronic toxicity studies by following the OECD guidelines. Effectively, no data have been published until now in regard to its safety on the nervous system...
March 14, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28291262/effects-of-bumetanide-on-neurobehavioral-function-in-children-and-adolescents-with-autism-spectrum-disorders
#11
E Lemonnier, N Villeneuve, S Sonie, S Serret, A Rosier, M Roue, P Brosset, M Viellard, D Bernoux, S Rondeau, S Thummler, D Ravel, Y Ben-Ari
In animal models of autism spectrum disorder (ASD), the NKCC1 chloride-importer inhibitor bumetanide restores physiological (Cl(-))i levels, enhances GABAergic inhibition and attenuates electrical and behavioral symptoms of ASD. In an earlier phase 2 trial; bumetanide reduced the severity of ASD in children and adolescents (3-11 years old). Here we report the results of a multicenter phase 2B study primarily to assess dose/response and safety effects of bumetanide. Efficacy outcome measures included the Childhood Autism Rating Scale (CARS), the Social Responsive Scale (SRS) and the Clinical Global Impressions (CGI) Improvement scale (CGI-I)...
March 14, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28290146/cyclooxygenase-2-directs-microglial-activation-mediated-inflammation-and-oxidative-stress-leading-to-intrinsic-apoptosis-in-zn-induced-parkinsonism
#12
Amit Kumar Chauhan, Namrata Mittra, Devendra Kumar Patel, Chetna Singh
Inflammation is decisive in zinc (Zn)-induced nigrostriatal dopaminergic neurodegeneration; however, the contribution of cyclooxygenase-2 (COX-2) is not yet known. The present study aimed to explore the role of COX-2 in Zn-induced Parkinsonism and its association with the microglial activation. Male Wistar rats were treated intraperitoneally (i.p.) with Zn as zinc sulphate (20 mg/kg) along with respective controls for 2-12 weeks. In a few sets, animals were also treated with/without celecoxcib (CXB, 20 mg/kg, i...
March 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28288948/memory-and-depressive-effect-on-male-and-female-swiss-mice-exposed-to-tannery-effluent
#13
Abraão Tiago Batista Guimarães, Raíssa de Oliveira Ferreira, Aline Sueli de Lima Rodrigues, Guilherme Malafaia
Although tannery industries generate substantial profits to the countries they are located in, they work with one of the most environmentally harmful human activities. Tannery effluents (TE) are highly toxic; thus, their improper release into water bodies may cause severe problems to individuals depending on this water. Therefore, the aim of the current study is to assess the effects of oral exposure to TE on the anxiety-, memory deficit- and depression-predictive behaviors in male and female Swiss adult mice...
March 10, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28288352/effects-of-dechlorane-plus-exposure-on-axonal-growth-musculature-and-motor-behavior-in-embryo-larval-zebrafish
#14
Xiangping Chen, Qiaoxiang Dong, Yuanhong Chen, Zhenxuan Zhang, Changjiang Huang, Yaxian Zhu, Yong Zhang
Developmental neurobehavioral toxicity of Dechlorane Plus (DP) was investigated using the embryo-larval stages of zebrafish (Danio rerio). Normal fertilized embryos were waterborne exposed to DP at 15, 30, 60 μg/L beginning from 6 h post-fertilization (hpf). Larval teratology, motor activity, motoneuron axonal growth and muscle morphology were assessed at different developmental stages. Results showed that DP exposure significantly altered embryonic spontaneous movement, reduced touch-induced movement and free-swimming speed and decreased swimming speed of larvae in response to dark stimulation...
March 10, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28288114/disruption-of-the-atxn1-cic-complex-causes-a-spectrum-of-neurobehavioral-phenotypes-in-mice-and-humans
#15
Hsiang-Chih Lu, Qiumin Tan, Maxime W C Rousseaux, Wei Wang, Ji-Yoen Kim, Ronald Richman, Ying-Wooi Wan, Szu-Ying Yeh, Jay M Patel, Xiuyun Liu, Tao Lin, Yoontae Lee, John D Fryer, Jing Han, Maria Chahrour, Richard H Finnell, Yunping Lei, Maria E Zurita-Jimenez, Priyanka Ahimaz, Kwame Anyane-Yeboa, Lionel Van Maldergem, Daphne Lehalle, Nolwenn Jean-Marcais, Anne-Laure Mosca-Boidron, Julien Thevenon, Margot A Cousin, Della E Bro, Brendan C Lanpher, Eric W Klee, Nora Alexander, Matthew N Bainbridge, Harry T Orr, Roy V Sillitoe, M Cecilia Ljungberg, Zhandong Liu, Christian P Schaaf, Huda Y Zoghbi
Gain-of-function mutations in some genes underlie neurodegenerative conditions, whereas loss-of-function mutations in the same genes have distinct phenotypes. This appears to be the case with the protein ataxin 1 (ATXN1), which forms a transcriptional repressor complex with capicua (CIC). Gain of function of the complex leads to neurodegeneration, but ATXN1-CIC is also essential for survival. We set out to understand the functions of the ATXN1-CIC complex in the developing forebrain and found that losing this complex results in hyperactivity, impaired learning and memory, and abnormal maturation and maintenance of upper-layer cortical neurons...
March 13, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28287287/reporting-of-symptoms-associated-with-concussion-by-oef-oif-ond-veterans-comparison-between-research-and-clinical-contexts
#16
Colleen E Jackson, Leslie Nordstrom, Jennifer R Fonda, Catherine B Fortier, William P Milberg, Regina E McGlinchey
OBJECTIVE: Veterans from recent military conflicts frequently report persisting symptoms associated with concussion well beyond the expected period of recovery following mild traumatic brain injury. This study examined differences in the reporting of symptoms associated with concussion between clinical and research contexts. METHODS: This naturalistic comparison included 91 Veterans from Operations Enduring Freedom (OEF), Iraqi Freedom (OIF) and New Dawn (OND). All participants were enrolled in a longitudinal study focused on traumatic brain injury and stress-related disorders and had also completed a VHA Comprehensive TBI Evaluation...
March 13, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28286158/smith-magenis-syndrome-patients-often-display-antibody-deficiency-but-not-other-immune-pathologies
#17
Tiffany Perkins, Jacob M Rosenberg, Carole Le Coz, Joseph T Alaimo, Melissa Trofa, Sureni V Mullegama, Richard J Antaya, Soma Jyonouchi, Sarah H Elsea, Paul J Utz, Eric Meffre, Neil Romberg
BACKGROUND: Smith-Magenis syndrome (SMS) is a complex neurobehavioral disorder associated with recurrent otitis. Most SMS cases result from heterozygous interstitial chromosome 17p11.2 deletions that encompass not only the intellectual disability gene retinoic acid-induced 1 but also other genes associated with immunodeficiency, autoimmunity, and/or malignancy. OBJECTIVES: The goals of this study were to describe the immunological consequence of 17p11.2 deletions by determining the prevalence of immunological diseases in subjects with SMS and by assessing their immune systems via laboratory methods...
March 9, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28282629/manganese-exposure-and-neurotoxic-effects-in-children
#18
REVIEW
Geir Bjørklund, Max Stanley Chartrand, Jan Aaseth
Manganese (Mn) is the fifth most abundant metal on earth. Although it is a well understood essential trace element, in excess, Mn is neurotoxic. Initial toxic symptoms associated with Mn are of psychiatric nature and are clinically defined as locura manganica. Neurological signs of Mn toxicity include dystonia, progressive bradykinesia, and disturbance of gait, slurring, and stuttering of speech with diminished volume. Studies indicate that children who ingested Mn in the drinking water (WMn) at or above a level of 0...
March 7, 2017: Environmental Research
https://www.readbyqxmd.com/read/28281498/from-resection-to-ablation-a-review-of-resective-surgical-options-for-temporal-lobe-epilepsy-and-rationale-for-an-ablation-based-approach
#19
REVIEW
Anne Coyle, Jonathan Riley, Chengyuan Wu, Ashwini Sharan
Surgical intervention is of proven benefit in an appropriately selected subset of patients with medically refractory temporal lobe epilepsy. In these patients, a surgical cure both provides the quality of life improvement that comes from seizure freedom as well as a survival benefit. However, patients who undergo open surgical intervention may have a worsening in neurobehavioral outcomes. Laser interstitial thermal therapy (LITT) represents a minimally invasive surgical intervention that has shown promise in improving post-operative neurobehavioral outcomes...
2017: Neurology India
https://www.readbyqxmd.com/read/28281492/comorbidities-of-epilepsy
#20
REVIEW
H V Srinivas, Urvashi Shah
In epilepsy management, control of seizures is the prime objective. However, the quality of life is affected by comorbid conditions that include the neurological, neuropsychiatric, and neurobehavioural disorders. These are not only reactive processes to a chronic condition but also have a bidirectional relationship, sharing common underlying pathogenesis. This article besides addressing these issues also explores the therapeutic management. A systematic search of PubMed from Jan 2006 to August 2016 was undertaken using the terms "comorbidities" and "epilepsy...
2017: Neurology India
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