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Behavioural Brain Research

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https://www.readbyqxmd.com/read/28634108/disturbances-of-novel-object-exploration-and-recognition-in-a-chronic-ketamine-mouse-model-of-schizophrenia
#1
Maria Jelena Hauser, Dirk Isbrandt, Jochen Roeper
Schizophrenia is a chronic and devastating disease with an overall lifetime risk of 1%. While positive symptoms of schizophrenia such as hallucinations and delusions are reduced by antipsychotic medication based on the inhibition of type 2 dopaminergic receptors (D2R), negative symptoms (e.g. reduced motivation) and cognitive symptoms (e.g. impaired working memory) of schizophrenia are not effectively treated by current medication. This dichotomy might arise in part because of our limited understanding of the pathophysiology of negative and cognitive symptoms in schizophrenia...
June 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28634107/chronic-pramipexole-treatment-induces-compulsive-behavior-in-rats-with-6-ohda-lesions-of-the-substantia-nigra-and-ventral-tegmental-area
#2
D Dardou, L Reyrolle, C Chassain, F Durif
Dopamine replacement therapy (DRT) reduces motor symptoms in Parkinson's disease (PD), but also induces impulsive-compulsive behavior (ICB) in up to 25% of PD patients. These non-motor side effects of DRT generally follow a gradual transition from impulsive to compulsive-like-i.e. repetitive, compelled, and non-pleasurable-behavior. Here, we investigated the effect of chronic pramipexole (PPX) treatment on the onset of compulsive-like behavior, measured via the post-training signal attenuation (PTSA) procedure, in rats with dopaminergic lesions...
June 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28629964/a-novel-heterocyclic-compound-improves-working-memory-in-the-radial-arm-maze-and-modulates-the-dopamine-receptor-d1r-in-frontal-cortex-of-the-sprague-dawley-rat
#3
Ahmed M Hussein, Yogesh D Aher, Predrag Kalaba, Nilima Y Aher, Vladimir Dragačević, Bojana Radoman, Marija Ilic, Johann Leban, Tetyana Beryozkina, Abdel Baset M A Ahmed, Ernst Urban, Thierry Langer, Gert Lubec
A series of compounds have been shown to enhance cognitive function via the dopaminergic system and indeed the search for more active and less toxic compounds is continuing. It was therefore the aim of the study to synthetise and test a novel heterocyclic compound for cognitive enhancement in a paradigm for working memory. Specific and effective dopamine re-uptake inhibition (DAT (IC50=4,1 ± 0,8μM) made us test this compound in a radial arm maze (RAM) in the rat. CE-125 (4-((benzhydrylsulfinyl)methyl)-2-cyclopropylthiazole), was tested for dopamine (DAT), serotonin and norepinephrine re-uptake inhibition by a well-established system...
June 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28629963/environmental-enrichment-reduces-innate-anxiety-with-no-effect-on-depression-like-behaviour-in-mice-lacking-the-serotonin-transporter
#4
Jake Rogers, Shanshan Li, Laurence Lanfumey, Anthony J Hannan, Thibault Renoir
Along with being the main target of many antidepressant medications, the serotonin transporter (5-HTT) is known to be involved in the pathophysiology of depression and anxiety disorders. In line with this, mice with varying 5-HTT genotypes are invaluable tools to study depression- and anxiety-like behaviours as well as the mechanisms mediating potential therapeutics. There is clear evidence that both genetic and environmental factors play a role in the aetiology of psychiatric disorders. In that regard, housing paradigms which seek to enhance cognitive stimulation and physical activity have been shown to exert beneficial effects in animal models of neuropsychiatric disorders...
June 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28629962/pharmacological-inhibition-of-anaplastic-lymphoma-kinase-rescues-spatial-memory-impairments-in-neurofibromatosis-1-mutant-mice
#5
Joseph B Weiss, Sydney Weber, Tessa Marzulla, Jacob Raber
Heterozygous Neurofibromatosis 1 (NF1) loss of function mutations are found in 90% of patients with neurofibromatosis, a syndrome associated with disabling cognitive impairment. Drosophila studies have demonstrated a genetic interaction between Anaplastic Lymphoma Kinase (Alk) and NF1 in cognitive performance. In addition, pharmacologic inhibition of Alk improves cognitive performance in heterozygous NF1 mutant flies. In this study, we tested whether pharmacological inhibition of Alk in heterozygous NF1 mutant mice attenuates or rescues cognitive impairments...
June 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28629961/tortoises-in-front-of-mirrors-brain-asymmetries-and-lateralized-behaviours-in-the-tortoise-testudo-hermanni
#6
Valeria Anna Sovrano, Caterina Quaresmini, Gionata Stancher
Brain lateralization in response to social stimuli is well known for its involvement of the right hemisphere in several vertebrate species, including humans. This study aimed to investigate the laterality of the social behavior during the mirror-images inspection in tortoises (Testudo hermanni). In a rectangular apparatus, in presence or in absence of two mirrors as the longer walls, we assessed: 1) the animal's position and 2) the monocular viewing compared to the longer walls, 3) the paw used to start a movement from a resting position...
June 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28625549/the-long-term-effects-of-stress-and-kappa-opioid-receptor-activation-on-conditioned-place-aversion-in-male-and-female-california-mice
#7
Abigail R Laman-Maharg, Tiffany Copeland, Evelyn Ordoñes Sanchez, Katharine L Campi, Brian C Trainor
Psychosocial stress leads to the activation of kappa opioid receptors (KORs), which induce dysphoria and facilitate depression-like behaviors. However, less is known about the long-term effects of stress and KORs in females. We examined the long-term effects of social defeat stress on the aversive properties of KOR activation in male and female California mice (Peromyscus californicus) using a conditioned place aversion paradigm. Female California mice naïve to social defeat, formed a place aversion following treatment with 2...
June 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28625548/effect-of-a-change-in-housing-conditions-on-body-weight-behavior-and-brain-neurotransmitters-in-male-c57bl-6j-mice
#8
Noemi Pasquarelli, Patrizia Voehringer, Julia Henke, Boris Ferger
The development of modern housing regimes such as individually ventilated cage (IVC) systems has become very popular and attractive in order to reduce spreading of pathogenic organisms and to lower the risk to develop a laboratory animal allergy for staff members. Additionally, optimal housing of laboratory animals contributes to improve animal health status and ensures high and comparable experimental and animal welfare standards. However, it has not been clearly elucidated whether 1) a change to IVC systems have an impact on various physiological phenotypic parameters of mice when compared to conventional, standard cages and 2) if this is further affected by changing from social to single housing...
June 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28625547/contextual-fear-conditioning-is-enhanced-in-mice-lacking-functional-sphingosine-kinase-2
#9
Mona Lei, Adeena Shafique, Kani Shang, Timothy A Couttas, Hua Zhao, Anthony S Don, Tim Karl
The lipid sphingosine 1-phosphate (S1P) is a potent neuroprotective signalling molecule that signals through its own family of five G-protein coupled receptors. S1P signalling enhances presynaptic glutamate release and is essential for neural development. S1P is synthesized by the enzymes sphingosine kinases 1 and 2 (SphK1 and SphK2), of which SphK2 mRNA and activity is more abundant in the brain. In this study we investigated the consequences of global SphK2 knockout (SphK2(-/-)) on basic motor capabilities, anxiety, learning, and memory in mice, using a range of tests including the elevated plus maze, the cheeseboard, contextual and cued fear conditioning, and fear extinction...
June 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28625546/the-lateral-parabrachial-nucleus-and-central-angiotensinergic-mechanisms-in-the-control-of-sodium-intake-induced-by-different-stimuli
#10
Camila F Roncari, Richard B David, Patrícia M De Paula, Débora S A Colombari, Laurival A De Luca, Eduardo Colombari, José V Menani
Angiotensin II (ANG II) is a typical facilitatory stimulus for sodium appetite. Surprisingly, hyperosmolarity and central cholinergic stimulation, two classical antinatriorexigenic stimuli, also facilitate NaCl intake when they are combined with injections of the α2-adrenoceptor/imidazoline agonist moxonidine into the lateral parabrachial nucleus (LPBN). In the present study, we tested the relative importance of central angiotensinergic and cholinergic mechanisms for the control of water and NaCl intake by combining different dipsogenic or natriorexigenic stimuli with moxonidine injection into the LPBN...
June 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28624318/differential-urinary-metabolites-related-with-the-severity-of-major-depressive-disorder
#11
Jian-Jun Chen, Chan-Juan Zhou, Peng Zheng, Ke Cheng, Hai-Yang Wang, Juan Li, Li Zeng, Peng Xie
Major depressive disorder (MDD) is a common mental disorder that affects a person's general health. However, there is still no objective laboratory test for diagnosing MDD. Here, an integrated analysis of data from our previous studies was performed to identify the differential metabolites in the urine of moderate and severe MDD patients. A dual platform approach (NMR spectroscopy and GC-MS) was used. Consequently, 14 and 22 differential metabolites responsible for separating moderate and severe MDD patients, respectively, from their respective healthy controls (HCs) were identified...
June 14, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28624317/modulatory-effects-of-ampicillin-sulbactam-on-glial-glutamate-transporters-and-metabotropic-glutamate-receptor-1-as-well-as-reinstatement-to-cocaine-seeking-behavior
#12
Alaa M Hammad, Fawaz Alasmari, Yusuf S Althobaiti, Youssef Sari
The glutamatergic system has an important role in cocaine-seeking behavior. Studies have reported that chronic exposure to cocaine induces downregulation of glutamate transporter-1 (GLT-1) and cystine/glutamate exchanger (xCT) in the central reward brain regions. Ceftriaxone, a β-lactam antibiotic, restored GLT-1 expression and consequently reduced cue-induced reinstatement of cocaine-seeking behavior. In this study, we investigated the reinstatement to cocaine (20mg/kg, i.p.) seeking behavior using a conditioned place preference (CPP) paradigm in male alcohol-preferring (P) rats...
June 14, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28624316/reversal-learning-in-c58-mice-modeling-higher-order-repetitive-behavior
#13
Cristina M Whitehouse, Lisa S Curry-Pochy, Robin Shafer, Joseph Rudy, Mark H Lewis
Restricted, repetitive behaviors are diagnostic for autism and prevalent in other neurodevelopmental disorders. These behaviors cluster as repetitive sensory-motor behaviors and behaviors reflecting resistance to change. The C58 mouse strain is a promising model for these behaviors as it emits high rates of aberrant repetitive sensory-motor behaviors. The purpose of the present study was to extend characterization of the C58 model to resistance to change. This was done by comparing C58 to C57BL/6 mice on a reversal learning task under either a 100% or 80%/20% probabilistic reinforcement schedule...
June 14, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28627387/observational-fear-learning-in-degus-is-correlated-with-temporal-vocalization-patterns
#14
Navdeep Lidhar, Nathan Insel, June Yue Dong, Kaori Takehara-Nishiuchi
Some animals learn to fear a situation after observing another individual come to harm, and this learning is influenced by the animals' social relationship and history. An important but sometimes overlooked factor in studies of observational fear learning is that social context not only affects observers, but may also influence the behavior and communications expressed by those being observed. Here we sought to investigate whether observational fear learning in the degu (Octodon degus) is affected by social familiarity, and the degree to which vocal expressions of alarm or distress contribute...
June 13, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28610917/rapid-and-sustained-antidepressant-effects-of-resolvin-d1-and-d2-in-a-chronic-unpredictable-stress-model
#15
Yuka Ishikawa, Satoshi Deyama, Kento Shimoda, Kotomi Yoshikawa, Soichiro Ide, Masamichi Satoh, Masabumi Minami
Resolvin D1 (RvD1) and D2 (RvD2) are lipid mediators that are derived from docosahexaenoic acid. We recently demonstrated that intracerebroventricular (i.c.v.) infusions of RvD1 or RvD2 attenuate lipopolysaccharide-induced depression-like behaviors via mammalian target of rapamycin complex 1 signaling. However, the antidepressant effects of RvD1 and RvD2 have not been fully investigated. Here, we examined the antidepressant effects of RvD1 and RvD2 using the tail suspension test (TST) and forced swim test (FST) in murine chronic unpredictable stress (CUS) model...
June 10, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28606631/restraint-stress-enhances-alcohol-intake-in-adolescent-female-rats-but-reduces-alcohol-intake-in-adolescent-male-and-adult-female-rats
#16
Aranza Wille-Bille, Ana Ferreyra, Martina Sciangula, Florencia Chiner, Michael E Nizhnikov, Ricardo Marcos Pautassi
Adolescents may be more sensitive to stress-induced alcohol drinking than adults, which would explain the higher prevalence of alcohol abuse and dependence in late adolescence than in adulthood. The present study analyzed the impact of restraint stress on the initiation of alcohol intake across 2 weeks of intermittent, two-bottle choice intake in male and female adolescent rats and adult female rats. Restraint stress significantly increased alcohol intake and preference in female adolescent rats but decreased alcohol intake and preference in male adolescent and female adult rats...
June 10, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28606630/long-term-contextual-memory-in-infant-rats-as-evidenced-by-an-ethanol-conditioned-tolerance-procedure
#17
Stefanía Castelló, Juan Carlos Molina, Carlos Arias
Conditioned tolerance can be conceptualized as a particular case of Pavlovian conditioning in which contextual cues play the role of the conditioned stimulus. Although the evidence is contradictory, it is frequently assumed that long-term contextual conditioning in pre-weanling rats is weak or even absent. This hypothesis comes from and is sustained mainly by behavioral studies that explored different contextual effects in 16-18day-old rats using a fear-conditioning paradigm, but their conclusions are stated in terms of an immature (hippocampal-dependent) declarative memory system...
June 9, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28606629/neural-substrates-underlying-balanced-time-perspective-a-combined-voxel-based-morphometry-and-resting-state-functional-connectivity-study
#18
Yiqun Guo, Zhiyi Chen, Tingyong Feng
Balanced time perspective (BTP), which is defined as a mental ability to switch flexibly among different time perspectives Zimbardo and Boyd (1999), has been suggested to be a central component of positive psychology Boniwell and Zimbardo (2004). BTP reflects individual's cognitive flexibility towards different time frames, which leads to many positive outcomes, including positive mood, subjective wellbeing, emotional intelligence, fluid intelligence, and executive control. However, the neural basis of BTP is still unclear...
June 9, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28606628/hippocampal-and-cerebellar-histological-changes-and-their-behavioural-repercussions-caused-by-brain-ischaemic-hypoxia-experimentally-induced-by-sodium-nitrite
#19
Mara Cláudia Ribeiro, Thiago Dos Santos Bezerra, Aluízio Carlos Soares, Raphael Boechat-Ramos, Fabiana Pirani Carneiro, Leonora Maciel de Souza Vianna, Lilian Rosana Ferreira Faro, Mônica Valero da Silva, Matheus Papa Vieira, Isabelle de Oliveira Monteiro, Vania Moraes Ferreira
INTRODUCTION: Brain ischaemic hypoxia can produce severe neurological damage that leads to behavioural disorders. This research analysed the hippocampal and cerebellar histological alterations caused by brain ischaemic hypoxia experimentally induced by sodium nitrite (NaNO2) and possible direct repercussions of this hypoxia on behaviour. METHODOLOGY: An experimental study was carried out by administering 60mg/kg NaNO2 to 10 Wistar rats at 3 months of age for 15 consecutive days...
June 9, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28606627/re-evaluation-of-the-reward-comparison-hypothesis-for-alcohol-abuse
#20
Alan Bo-Han He, Yu-Chieh Chang, Anna Wan Yun Meng, Andrew Chih Wei Huang
This study examined whether various doses of ethanol induced reward or aversion and then evaluated Grigson's reward comparison hypothesis (1997). Rats were given a 0.1% saccharin solution (conditioned stimulus 1 [CS1]) 15min prior to administration of a 0, 0.05, 0.125, 0.20, 0.35, or 0.50g/kg dose of ethanol (unconditioned stimulus [US]). The rats were then exposed to a paired compartment (CS2) for 30min. The low dose of 0.05g/kg ethanol did not induce conditioned suppression (i.e., conditioned taste aversion [CTA]) or conditioned place preference (CPP)...
June 9, 2017: Behavioural Brain Research
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