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Behavioural Brain Research

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https://www.readbyqxmd.com/read/27913257/prodynorphin-and-kappa-opioid-receptor-mrna-expression-in-the-brain-relates-to-social-status-and-behavior-in-male-european-starlings
#1
Lauren V Riters, Melissa A Cordes, Sharon A Stevenson
Numerous animal species display behavioral changes in response to changes in social status or territory possession. For example, in male European starlings only males that acquire nesting sites display high rates of sexual and agonistic behavior. Past studies show that mu and delta opioid receptors regulate behaviors associated with social ascension or defeat. Opioids also act at kappa receptors, with dynorphin binding with the highest affinity; however, the role of these opioids in social behavior has not been well studied...
November 29, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27913256/rapid-upregulation-of-the-hippocampal-connexins-36-and-45-mrna-levels-during-memory-consolidation
#2
Siamak Beheshti, Reyhaneh Zeinali, Abolghasem Esmaeili
Gap junction channels are implicated in learning and memory process. However, their role on each of the particular stages of memory formation have been studied less. In this study, the time profile of the expression levels of hippocampal connexins 36 and 45 (Cx36 and Cx45) mRNAs was measured during memory consolidation, in a passive avoidance paradigm. Totally 36 adult male rats were distributed into 5 groups of each 6. At different times profiles (30min, 3, 6 and 24h) following training, rats were decapitated and their hippocampi were immediately removed and frozen in liquid nitrogen...
November 29, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27913255/using-the-bitola-system-to-identify-candidate-molecules-in-the-interaction-between-oral-lichen-planus-and-depression
#3
Yuanbo Zhan, Shuang Zhou, Ying Li, Sen Mu, Xuejing Song, Feng Lin, Ruimin Zhang, Bin Zhang
Exacerbations of oral lichen planus (OLP) have been linked to the periods of psychological stress, anxiety and depression. The specific mechanism of the interaction is unclear. The aim of this study was to explore the candidate genes or molecules that play important roles in the interaction between OLP and depression. The BITOLA system was used to search all intermediate concepts relevant to the "Gene or Gene Product" for OLP and depression, and the gene expression data and tissue-specific gene data along with manual checking were then employed to filter the intermediate concepts...
November 29, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27913254/quetiapine-treatment-reverses-depressive-like-behavior-and-reduces-dna-methyltransferase-activity-induced-by-maternal-deprivation
#4
Zuleide M Ignácio, Gislaine Z Réus, Helena M Abelaira, Amanda L Maciel, Airam B de Moura, Danyela Matos, Júlia P Demo, Júlia B I da Silva, Fernanda F Gava, Samira S Valvassori, André F Carvalho, João Quevedo
Stress in early life has been appointed as an important phenomenon in the onset of depression and poor response to treatment with classical antidepressants. Furthermore, childhood trauma triggers epigenetic changes, which are associated with the pathophysiology of major depressive disorder (MDD). Treatment with atypical antipsychotics such as quetiapine, exerts therapeutic effect for MDD patients and induces epigenetic changes. This study aimed to analyze the effect of chronic treatment with quetiapine (20mg/kg) on depressive-like behavior of rats submitted to maternal deprivation (MD), as well as the activity of histone acetylation by the enzymes histone acetyl transferases (HAT) and deacetylases (HDAC) and DNA methylation, through DNA methyltransferase enzyme (DNMT) in the prefrontal cortex (PFC), nucleus accumbens (NAc) and hippocampus...
November 29, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27913253/vibrissal-paralysis-produces-increased-corticosterone-levels-and-impairment-of-spatial-memory-retrieval
#5
William E Patarroyo, Milady García-Perez, Marisol Lamprea, Alejandro Múnera, Julieta Troncoso
This research was aimed at establishing how the absence of active whisking in rats affects acquisition and recovery of spatial memory. The mystacial vibrissae were irreversibly paralyzed by cutting the facial nerve's mandibular and buccal branches bilaterally in the facial nerve lesion group (N=14); control animals were submitted to sham-surgery (N=15). Sham-operated (N=11) and facial nerve-lesioned (N=10) animals were trained (one session, eight acquisition trials) and tested 24hours later in a circular Barnes maze...
November 29, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27908749/a-new-role-for-gabaergic-transmission-in-the-control-of-male-rat-sexual-behavior-expression
#6
Gabriela Rodríguez-Manzo, Ana Canseco-Alba
GABAergic transmission in the ventral tegmental area (VTA) exerts a tonic inhibitory influence on mesolimbic dopaminergic neurons' activity. Blockade of VTA GABAA receptors increases dopamine release in the nucleus accumbens (NAcc). Increases in NAcc dopamine levels typically accompany sexual behavior display. Copulation to satiety is characterized by the instatement of a long lasting (72h) sexual behavior inhibition and the mesolimbic system appears to be involved in this phenomenon. GABAergic transmission in the VTA might play a role in the maintenance of this long lasting sexual inhibitory state...
November 28, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27908748/the-chemotherapeutic-agent-paclitaxel-selectively-impairs-learning-while-sparing-source-memory-and-spatial-memory
#7
Alexandra E Smith, Richard A Slivicki, Andrea G Hohmann, Jonathon D Crystal
: Chemotherapeutic agents are widely used to treat patients with systemic cancer. The efficacy of these therapies is undermined by their adverse side-effect profiles such as cognitive deficits that have a negative impact on the quality of life of cancer survivors. Cognitive side effects occur across a variety of domains, including memory, executive function, and processing speed. Such impairments are exacerbated under cognitive challenges and a subgroup of patients experience long-term impairments...
November 28, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27899292/engrampigenetics-epigenetics-of-engram-memory-cells
#8
Cristian Ripoli
For long time, the epidemiology of late-onset sporadic Alzheimer's disease (AD) risk factors has centered on adult life-style. Recent studies have, instead, focused on the role of early life experiences in progression of such disease especially in the context of prenatal and postnatal life. Although no single unfavorable environmental event has been shown to be neither necessary nor sufficient for AD development, it is possible that the sum of several environmentally induced effects, over time from early life, contribute to its pathophysiology through epigenetic mechanisms...
November 26, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27899291/dynamic-changes-in-sleep-pattern-during-post-partum-in-normal-pregnancy-in-rat-model
#9
Neelima Sivadas, Arathi Radhakrishnan, B S Aswathy, Velayudhan Mohan Kumar, Kamalesh K Gulia
To develop an animal model for studies on peri-partum sleep disorders, sleep patterns in female Wistar rats during pregnancy, post-partum and after weaning, were assessed and associated adaptive changes in their anxiety were examined. Adult nulliparous female rats, maintained in standard laboratory conditions with ad libitum food and water, were surgically implanted with electroencephalogram and electromyogram electrodes under anaesthesia for objective assessment of sleep-wakefulness (S-W). After post-surgical recovery, three control recordings of S-W were taken for 24h before the animals were kept for mating...
November 26, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27890441/the-ability-for-cocaine-and-cocaine-associated-cues-to-compete-for-attention
#10
Kyle K Pitchers, Taylor R Wood, Cari J Skrzynski, Terry E Robinson, Martin Sarter
In humans, reward cues, including drug cues in addicts, are especially effective in biasing attention towards them, so much so they can disrupt ongoing task performance. It is not known, however, whether this happens in rats. To address this question, we developed a behavioral paradigm to assess the capacity of an auditory drug (cocaine) cue to evoke cocaine-seeking behavior, thus distracting thirsty rats from performing a well-learned sustained attention task (SAT) to obtain a water reward. First, it was determined that an auditory cocaine cue (tone-CS) reinstated drug-seeking equally in sign-trackers (STs) and goal-trackers (GTs), which otherwise vary in the propensity to attribute incentive salience to a localizable drug cue...
November 24, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27888021/heightened-aggressive-behavior-in-mice-deficient-in-aldo-keto-reductase-1a-akr1a
#11
Takujiro Homma, Ryusuke Akihara, Satoshi Okano, Mototada Shichiri, Yasukazu Yoshida, Ken-Ichi Yamada, Satoshi Miyata, Osamu Nakajima, Junichi Fujii
Aldehyde reductase (Akr1a) is involved in the synthesis of ascorbic acid (AsA) which may play a role in social behavior. In the current study, we performed analyses on Akr1a-deficient (Akr1a(-/-)) mice that synthesize about 10% as much AsA as wild-type mice from the viewpoint of intermale aggression. The use of the resident-intruder test revealed that the Akr1a(-/-) mice exhibited more aggressive phenotypes than wild-type control mice. Unexpectedly, however, the oral administration of additional AsA failed to reduce the aggressive behavior of Akr1a(-/-) mice, suggesting that the heightened aggression was independent of AsA biosynthesis...
November 22, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27888020/neural-correlates-of-affective-empathy-and-reinforcement-learning-in-boys-with-conduct-problems-fmri-evidence-from-a-gambling-task
#12
Christina Schwenck, Angela Ciaramidaro, Marina Selivanova, Jennifer Tournay, Christine M Freitag, Michael Siniatchkin
BACKGROUND: Conduct problems (CP) comprise abnormal behaviors associated with aberrant aspects of affective empathy as well as learning. However, behavioral measures for affective empathy are challenging, and previous results concerning learning in patients with CP are inconsistent. METHODS: Nineteen boys with CP and 24 typically developing (TD) boys aged 11-17 years (M=14.34, SD=1.93) participated in the study. An ultimatum-game was applied in order to elicit the feeling of like or dislike towards the opponent for a subsequent gambling task, which was played by the opponents (OTHER-condition) and by the participants themselves (SELF-condition)...
November 22, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27888019/ifenprodil-infusion-in-agranular-insular-cortex-alters-social-behavior-and-vocalizations-in-rats-exposed-to-moderate-levels-of-ethanol-during-prenatal-development
#13
Clark W Bird, Daniel Barto, Christy M Magcalas, Carlos I Rodriguez, Tia Donaldson, Suzy Davies, Daniel D Savage, Derek A Hamilton
Moderate exposure to alcohol during development leads to subtle neurobiological and behavioral effects classified under the umbrella term fetal alcohol spectrum disorders (FASDs). Alterations in social behaviors are a frequently observed consequence of maternal drinking, as children with FASDs display inappropriate aggressive behaviors and altered responses to social cues. Rodent models of FASDs mimic the behavioral alterations seen in humans, with rats exposed to ethanol during development displaying increased aggressive behaviors, decreased social investigation, and altered play behavior...
November 22, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27888018/1400w-ameliorates-acute-hypobaric-hypoxia-reoxygenation-induced-cognitive-deficits-by-suppressing-the-induction-of-inducible-nitric-oxide-synthase-in-rat-cerebral-cortex-microglia
#14
Qinghai Shi, Xin Liu, Ning Wang, Xinchuan Zheng, Jihua Ran, Zhengxiang Liu, Jianfeng Fu, Jiang Zheng
Nitric oxide (NO) is involved in neuronal modifications, and overproduction of NO contributes to memory deficits after acute hypobaric hypoxia-reoxygenation. This study investigated the ability of the iNOS inhibitor 1400W to counteract spatial memory deficits following acute hypobaric hypoxia-reoxygenation, and to affect expression of NOS, NO, 3-NT and MDA production, and apoptosis in rat cerebral cortex. We also used primary rat microglia to investigate the effect of 1400W on expression of NOS, NO, 3-NT and MDA production, and apoptosis...
November 22, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27884768/intact-renewal-after-extinction-of-conditioned-suppression-with-lesions-of-either-the-retrosplenial-cortex-or-dorsal-hippocampus
#15
Travis P Todd, Matthew Y Jiang, Nicole E DeAngeli, David J Bucci
Extinction of fear to a Pavlovian conditioned stimulus (CS) is known to be context-specific. When the CS is tested outside the context of extinction, fear returns, or renews. Several studies have demonstrated that renewal depends upon the hippocampus, although there are also studies where renewal was not impacted by hippocampal damage, suggesting that under some conditions context encoding and/or retrieval of extinction depends upon other regions. One candidate region is the retrosplenial cortex (RSC), which is known to contribute to contextual and spatial learning and memory...
November 21, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27880890/potential-antidepressant-and-resilience-mechanism-revealed-by-metabolomic-study-on-peripheral-blood-mononuclear-cells-of-stress-resilient-rats
#16
Juan Li, Shu-Xiao Zhang, Wei Wang, Ke Cheng, Hua Guo, Cheng-Long Rao, De-Yu Yang, Yong He, De-Zhi Zou, Yu Han, Li-Bo Zhao, Peng-Fei Li, Peng Xie
Resilience is an active coping response to stress, which plays a very important role in major depressive disorder study. The molecular mechanisms underlying such resilience are poorly understood. Peripheral blood mononuclear cells (PBMCs) were promising objects in unveiling the underlying pathogenesis of resilience. Hereby we carried out successive study on PBMCs metabolomics in resilient rats of chronic unpredictable mild stress (CUMS) model. A gas chromatography-mass spectrometry (GC-MS) metabolomic approach coupled with principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA) was used to detect differential metabolites in PBMCs of resilient rats...
November 20, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27876668/activation-of-the-orbitofrontal-and-anterior-cingulate-cortices-during-the-expression-of-a-naturalistic-compulsive-like-behavior-in-the-rabbit
#17
Hugo Cano-Ramírez, Kurt L Hoffman
We propose that maternal nest building in the female laboratory rabbit is a useful model for compulsions in obsessive-compulsive disorder (OCD). This repetitive behavior comprises collecting straw, depositing it into the nest box, and then returning to collect more straw. We reasoned that if "straw carrying" behavior is homologous to compulsive behavior, then it should be associated with activation of prefrontal regions associated with OCD, namely, the orbitofrontal and anterior cingulate cortices (OFC and ACC, respectively)...
November 19, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27876667/comparative-efficacy-and-acceptability-of-electroconvulsive-therapy-versus-repetitive-transcranial-magnetic-stimulation-for-major-depression-a-systematic-review-and-multiple-treatments-meta-analysis
#18
Jian-Jun Chen, Li-Bo Zhao, Yi-Yun Liu, Song-Hua Fan, Peng Xie
BACKGROUNDS: The effects of electroconvulsive therapy (ECT) and bilateral, left prefrontal, and right prefrontal repetitive transcranial magnetic stimulation (rTMS) on major depressive disorder (MDD) have not been adequately addressed by previous studies. Here, a multiple-treatments meta-analysis, which incorporates evidence from direct and indirect comparisons from a network of trials, was performed to assess the efficacy and acceptability of these four treatment modalities on MDD. METHOD: The literature was searched for randomized controlled trials (RCTs) on ECT, bilateral rTMS, and unilateral rTMS for treating MDD up to May 2016...
November 19, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27871866/effects-of-the-glun2b-nmda-receptor-antagonist-ro-25-6981-on-two-types-of-behavioral-flexibility-in-rats
#19
Emma Clark, Kristen Antoniak, Alyssandra Feniquito, Hans C Dringenberg
Recent evidence has implicated N-methyl-d-aspartate receptors (NMDARs) in several aspects of learning and behavioral flexibility in rodents. Here, we examined the effects of treatment with Ro 25-6981, a selective antagonist of NMDARs containing GluN2B subunits, on two types of behavioral flexibility in rats, spatial reversal learning and set-shifting (spatial vs. motor strategy). To examine spatial reversal learning, rats were trained to swim to a hidden platform in a water maze over four days. On the following day, the platform was moved to a new location in the maze...
November 18, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27867102/neural-correlates-of-response-inhibition-in-current-and-former-smokers
#20
Christina R Weywadt, Kent A Kiehl, Eric D Claus
Loss of behavioral control is a hallmark of addiction. Individual differences in basic cognitive processes such as response inhibition may be important for interrupting automatic behaviors associated with smoking and supporting prolonged abstinence. To examine how response inhibition and error monitoring processes differ as a function of smoking status, current smokers, former smokers and never smokers (N=126) completed a simple Go/No-Go task while undergoing functional magnetic resonance imaging. All groups performed similarly on the task and similarly engaged the inferior frontal gyrus and dorsal anterior cingulate cortex, regions traditionally associated with response inhibition and error monitoring, respectively...
November 17, 2016: Behavioural Brain Research
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