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Behavioural Brain Research

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https://www.readbyqxmd.com/read/29355675/anxiety-like-behavior-and-neuropeptide-receptor-expression-in-male-and-female-prairie-voles-the-effects-of-stress-and-social-buffering
#1
Meghan Donovan, Yan Liu, Zuoxin Wang
Strong social support can negate negative health outcomes - an effect defined as 'social buffering'. In the present study, using the socially monogamous prairie vole (Microtus ochrogaster), we examined whether the presence of a bonded partner during a stressful event can reduce stress responses. Adult, pair-bonded female and male voles were assigned into experimental groups that were either handled (Control), experienced a 1-hr immobilization (IMO) stress alone (IMO-Alone), or experienced IMO with their partner (IMO-Partner)...
January 18, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29355674/sex-differences-in-rat-decision-making-the-confounding-role-of-extraneous-feeder-sampling-between-trials
#2
Clifford H Donovan, Scott A Wong, Sienna H Randolph, Rachel A Stark, Robbin L Gibb, Aaron J Gruber
Although male and female rats appear to perform differently in some tasks, a clear picture of sex differences in decision-making has yet to develop. This is in part due to significant variability arising from differences in strains and tasks. The aim of this study was to characterize the effects of sex on specific response elements in a reinforcement learning task so as to help identify potential explanations for this variability. We found that the primary difference between sexes was the propensity to approach feeders out of the task context...
January 17, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29355673/a-role-for-ca3-in-social-recognition-memory
#3
Ming-Ching Chiang, Arthur J Y Huang, Marie E Wintzer, Toshio Ohshima, Thomas J McHugh
Social recognition memory is crucial for survival across species, underlying the need to correctly identify conspecifics, mates and potential enemies. In humans the hippocampus is engaged in social and episodic memory, however the circuit mechanisms of social memory in rodent models has only recently come under scrutiny. Work in mice has established that the dorsal CA2 and ventral CA1 regions play critical roles, however a more comprehensive comparative analyses of the circuits and mechanisms required has not been reported...
January 17, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29355672/assessment-of-impulsivity-in-adolescent-mice-a-new-training-procedure-for-a-3-choice-serial-reaction-time-task
#4
Hitomi Sasamori, Yu Ohmura, Takuya Kubo, Takayuki Yoshida, Mitsuhiro Yoshioka
Immaturity in impulse control among adolescents could result in substance abuse, criminal involvement, and suicide. The brains of adolescents and adults are anatomically, neurophysiologically, and pharmacologically different. Therefore, preclinical models of adolescent impulsivity are required to screen drugs for adolescents and elucidate the neural mechanisms underlying age-related differences in impulsivity. The conventional 3- or 5-choice serial reaction time task, which is a widely used task to assess impulsivity in adult rodents, cannot be used for young mice because of two technical problems: impaired growth caused by food restriction and the very long training duration...
January 17, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29355671/reversible-inactivation-of-interpeduncular-nucleus-impairs-memory-consolidation-and-retrieval-but-not-learning-in-rats-a-behavioral-and-molecular-study
#5
Leila Khatami, Fariba Khodagholi, Fereshteh Motamedi
The Interpedundular nucleus (IPN) is a small midbrain structure located deeply between the two cerebral peduncles. The strategic placement of this nucleus makes it a possible relay between structures involved in the modulation of hippocampal theta rhythm activity. In this study we aimed to investigate how reversible inactivation of IPN could affect the acquisition, consolidation and retrieval phases of memory in passive avoidance (PA) and Morris water maze (MWM) tasks. To support our data, molecular studies were performed in order to detect possible changes in the expression of proteins related to learning and memory in the hippocampus...
January 17, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29339006/food-allergy-induces-alteration-in-brain-inflammatory-status-and-cognitive-impairments
#6
Liqing Zhou, Long Chen, Xiaohuan Li, Tingyu Li, Zhifang Dong, Yu Tian Wang
Accumulating evidence supports an increase in emotional and behavioral problems in patients with food allergy, but the underlying mechanism remains poorly understood. Here we found that in addition to inducing an increase of allergic factors in serum, food allergy also increased levels of antigen-specific immunoglobulins and mast cell marker in the brain. In particular, food allergy increased the number of total microglia and the percentage of active microglia in the cerebral cortex and hippocampal CA1 areas, and induced the increase of TNF-α in the cerebral cortex...
January 12, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29339005/effects-of-exercise-and-enrichment-on-behaviour-in-cd-1-mice
#7
Amiirah B Aujnarain, Owen D Luo, Natalie Taylor, Jonathan K Y Lai, Jane A Foster
A host of scholarly work has characterized the positive effects of exercise and environmental enrichment on behaviour and cognition in animal studies. The purpose of this study was to investigate the uptake and longitudinal impact of exercise and enrichment on the behavioural phenotype of male and female CD-1 mice. CD-1 mice housed in standard (STD) or exercise and enrichment (EE) conditions post-weaning were tested in the 3-chamber sociability test, open field, and elevated plus maze and exercise activity was monitored throughout the enrichment protocol...
January 12, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29331712/genetic-biomarkers-for-differential-diagnosis-of-major-depressive-disorder-and-bipolar-disorder-a-systematic-and-critical-review
#8
REVIEW
Itiana Castro Menezes, Cristiane von Werne Baes, Riccardo Lacchini, Mario Francisco Juruena
Depressive symptoms are present in the depressive mood state of bipolar disorder (BPD) and major depression disorder (MDD). Often, in clinical practice, BPD patients are misdiagnosed with MDD. Therefore, genetic biomarkers could contribute to the improvement of differential diagnosis between BPD and MDD. This systematic and critical review aimed to find in literature reliable genetic biomarkers that may show differences between BPD and MDD. This systematic review followed the PRISMA-P method. The terms used to search PubMed, Scopus, PsycINFO, and Web of Science were depress*, bipolar, diagnos*, genetic*, biomark*...
January 10, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29330004/recovery-of-stress-impaired-social-behavior-by-an-antagonist-of-the-crf-binding-protein-crf6-33-in-the-bed-nucleus-of-the-stria-terminalis-of-male-rats
#9
Mailton Vasconcelos, Dirson J Stein, Lucas Albrechet-Souza, Klaus A Miczek, Rosa Maria M de Almeida
No abstract text is available yet for this article.
January 9, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29330003/effects-of-5-ht5a-receptor-blockade-on-amnesia-or-forgetting
#10
L Aparicio-Nava, L A Márquez-García, A Meneses
Previously the effects (0.01-3.0 mg/kg) of post-training SB-699551 (a 5-HT5A receptor antagonist) were reported in the associative learning task of autoshaping, showing that SB-699551 (0.1 mg/kg) decreased lever-press conditioned responses (CR) during short-term (STM; 1.5-h) or (3.0 mg/kg) long-term memory (LTM; 24-h); relative to the vehicle animals. Moreover, as pro-cognitive efficacy of SB-699551 was reported in the ketamine-model of schizophrenia. Hence, firstly aiming improving performance (conditioned response, CR), in this work autoshaping lever-press vs...
January 9, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29326059/differential-requirement-of-de-novo-arc-protein-synthesis-in-the-insular-cortex-and-the-amygdala-for-safe-and-aversive-taste-long-term-memory-formation
#11
Guzmán-Ramos Kioko, Venkataraman Archana, Morin Jean-Pascal, Osorio-Gómez Daniel, Bermúdez-Rattoni Federico
Several immediate early genes products are known to be involved in the facilitation of structural and functional modifications at distinct synapses activated through experience. The IEG-encoded protein Arc (activity regulated cytoskeletal-associated protein) has been widely implicated in long-term memory formation and stabilization. In this study, we sought to evaluate a possible role for de novo Arc protein synthesis in the insular cortex (IC) and in the amygdala (AMY) during long-term taste memory formation...
January 8, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29326058/sleep-architecture-is-altered-in-the-reserpine-induced-fibromyalgia-model-in-ovariectomized-rats
#12
Alberto Hernandez-Leon, Alonso Fernández-Guasti, Adrián Martínez, Francisco Pellicer, María Eva González-Trujano
Fibromyalgia (FM) is a musculoskeletal chronic pain syndrome with various concomitant symptoms like sleep disorders. FM patients are mainly women and menopause might play an important role in the altered processing of somatosensory information. Adverse effects and moderated efficacy of drugs promote treatment discontinuation by patients. Animal models of FM report pain and depression-like behaviors, but none of them have explored sleep disturbance as possible marker in the preclinic diagnostic. The aim of this study was to investigate alterations of the sleep architecture in the reserpine (RES)-induced FM model in ovarectomized (OVX) rats...
January 8, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29326057/antidepressant-effects-of-focused-ultrasound-induced-blood-brain-barrier-opening
#13
Skyler J Mooney, José N Nobrega, Anthony J Levitt, Kullervo Hynynen
In many cases, hippocampal neurogenesis appears to be a hallmark of antidepressant treatments. One novel technique for inducing this type of neurogenesis is using focused ultrasound waves, in conjunction with circulating microbubbles, to open the blood-brain-barrier. The present experiment aimed to test whether this technique has antidepressant effects in a rodent model. Rats were subjected to 1, 2 or 3 weekly treatments of magnetic resonance-guided focused ultrasound in order to open the blood-brain-barrier in the hippocampal region...
January 8, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29317248/cognitive-decline-and-increased-hippocampal-p-tau-expression-in-mice-with-hearing-loss
#14
So Young Park, Min Jung Kim, Hong Lim Kim, Dong Kee Kim, Sang Won Yeo, Shi Nae Park
Hearing and cognition are commonly involved in both normal and pathological aging. Current clinical interest lies in whether peripheral hearing loss promotes cognitive decline. In our previous publication, the authors have shown a causal relationship between hearing and cognitive impairments in C57BL/6 mice. Here we extended the follow-up to 12 months to determine the long-term effects of hearing loss on cognition and to observe hippocampal p-tau and lipofuscin. One month old male mice were randomly allocated into two groups, the control (n = 12) and noise-induced hearing loss (NIHL) (n = 12)...
January 6, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29307664/chronic-nicotine-differentially-alters-spontaneous-recovery-of-contextual-fear-in-male-and-female-mice
#15
Jessica M Tumolo, Munir Gunes Kutlu, Thomas J Gould
Post-traumatic stress disorder (PTSD) is a devastating disorder with symptoms such as flashbacks, hyperarousal, and avoidance of reminders of the traumatic event. Exposure therapy, which attempts to extinguish fear responses, is a commonly used treatment for PTSD but relapse following successful exposure therapy is a frequent problem. In rodents, spontaneous recovery (SR), where extinguished fear responses resurface following extinction treatment, is used as a model of fear relapse. Previous studies from our lab showed that chronic nicotine impaired fear extinction and acute nicotine enhanced SR of contextual fear in adult male mice...
January 5, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29307666/role-of-silent-information-regulator-1-in-the-protective-effect-of-hydrogen-sulfide-on-homocysteine-induced-cognitive-dysfunction-involving-reduction-of-hippocampal-er-stress
#16
Yi-Yun Tang, Ai-Ping Wang, Hai-Jun Wei, Man-Hong Li, Wei Zou, Xiang Li, Chun-Yan Wang, Ping Zhang, Xiao-Qing Tang
Homocysteine (Hcy) causes cognitive deficits and hippocampal endoplasmic reticulum (ER) stress. Our previous study has confirmed that Hydrogen sulfide (H2S) attenuates Hcy-induced cognitive dysfunction and hippocampal ER stress. Silent information regulator 1 (Sirt-1) is indispensable in the formation of learning. Therefore, the aim of this study was to explore the role of Sirt-1 in the protective effect of H2S against Hcy-induced cognitive dysfunction. We found that NaHS (a donor of H2S) markedly up-regulated the expression of Sirt-1 in the hippocampus of Hcy-exposed rats...
January 4, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29307665/effects-of-ketamine-on-vocal-impairment-gait-changes-and-anhedonia-induced-by-bilateral-6-ohda-infusion-into-the-substantia-nigra-pars-compacta-in-rats-therapeutic-implications-for-parkinson-s-disease
#17
Débora Dalla Vecchia, Luiz Kae Sales Kanazawa, Etiéli Wendler, Palloma de Almeida Soares Hocayen, Estevan Bruginski, Francinete Ramos Campos, Cristina Aparecida Jark Stern, Maria Aparecida Barbato Frazão Vital, Edmar Miyoshi, Markus Wöhr, Rainer K W Schwarting, Roberto Andreatini
Parkinson's disease is a chronic neurodegenerative disorder characterized by cardinal motor features, such as bradykinesia, but also vocal deficits (e.g. difficulties to articulate words and to keep the tone of voice) and depression. In the present study, rats with bilateral 6-hydroxydopamine lesion of the substantia nigra pars compacta were evaluated for changes in the emission of 50-kHz ultrasonic vocalizations, gait impairment (catwalk test), and depressive-like behaviour (sucrose preference test).Furthermore, we evaluated the effect of repeated treatment (28 days) with ketamine (5, 10, and 15 mg/kg, ip, once per week) or imipramine (15 mg/kg, ip, daily)...
January 4, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29305318/behavioral-phenotyping-of-calcium-channel-cacn-subunit-%C3%AE-2%C3%AE-3-knockout-mice-consequences-of-sensory-cross-modal-activation
#18
Julia Landmann, Franziska Richter, Joseph Classen, Angelika Richter, Josef M Penninger, Ingo Bechmann
Sensory cross-activation is still ill-defined and research concerning the consequences of sensory mergence on normal brain function is very limited. Human studies describe behavioral benefits of people with synesthesia- a peculiar form of perception possibly due to cross-modal activation- regarding sensory and memory abilities. Here, we studied behavioral alterations in calcium channel (CACN) subunit α2δ3 knockout (KO) mice exhibiting pain-induced cortical cross-modal activation. Knockout mice exhibited an increased response upon touch of a pinna and impaired audition, while elementary olfaction, vision, somatosensation and motor function were not altered...
January 2, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29292159/monoacylglycerol-lipase-inhibition-alters-social-behavior-in-male-and-female-rats-after-post-weaning-social-isolation
#19
Jazmin Fontenot, Esteban Loetz, Matthew Ishiki, Sondra T Bland
Post-weaning social isolation (PSI) has been shown to increase aggressive behavior and alter medial prefrontal cortex (mPFC) function in rats. The present study sought to determine whether this phenotype would be normalized by increasing levels of the endocannabinoid 2-arachidonoylglycerol (2-AG) using pharmacological inhibition of monoacylglycerol lipase (MAGL). Male and female Sprague-Dawley rats were exposed to either 4 weeks of PSI or social rearing (SR) starting on postnatal day 21, then underwent a 15 min trial of social interaction with a novel, same-sex juvenile rat...
December 29, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29292158/using-c-jun-to-identify-fear-extinction-learning-specific-patterns-of-neural-activity-that-are-affected-by-single-prolonged-stress
#20
Dayan Knox, Briana R Stanfield, Jennifer M Staib, Nina P David, Thomas DePietro, Marisa Chamness, Elizabeth K Schneider, Samantha M Keller, Caroline Lawless
Neural circuits via which stress leads to disruptions in fear extinction is often explored in animal stress models. Using the single prolonged stress (SPS) model of post traumatic stress disorder and the immediate early gene (IEG) c-Fos as a measure of neural activity, we previously identified patterns of neural activity through which SPS disrupts extinction retention. However, none of these stress effects were specific to fear or extinction learning and memory. C-Jun is another IEG that is sometimes regulated in a different manner to c-Fos and could be used to identify emotional learning/memory specific patterns of neural activity that are sensitive to SPS...
December 29, 2017: Behavioural Brain Research
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