Abstract：
:At present neurobiological interests are directing more attention towards the major role of the amygdalar GABA(A) receptor on orexin-dependent behaviors. This telencephalic region has been widely studied especially in view of its control on various psychiatric disorders such as anxiety and depression. Recently, cross-talking relationships between these two specific neuroreceptor systems of the central-cortical amygdalar complex has been considered an important element for anxiety type of behaviors. In the present study, we investigated the effects of central amygdalar infusions with orexin-A, orexin-B±GABA(A) receptor α₂ subunit agonist (flunitrazepam) on elevated plus-maze and light-dark explorative behaviors of the facultative hibernating Syrian hamster. In a first case, it seemed that doses of orexin administered directly into the central nucleus were responsible for greater anxiogenic type of effects as shown by more time being spent both in the dark compartment and the closed arm of the elevated plus-maze, whereas, these effects were suppressed in the presence of flunitrazepam. At the cellular level, the effects of orexin accounted for evident argyrophilic reactions (neurodegeneration phenomena) including altered cell membrane and loss of cytoplasmic architecture in most amygdalar and hippocampal neuronal fields, while in the presence of flunitrazepam these reactions resulted to either be unappreciable or absent. Overall the actions of α₂-dependent inhibitory signals tend to corroborate, for the first time, a neuroprotective role against the over-excitatory orexinergic neurodegeneration reactions and thus its abnormal anxiety-like indications may prove to be therapeutically useful for orexin-dependent sleeping disorders.
journal_name
Behav Brain Resjournal_title
Behavioural brain researchauthors
Avolio E,Alò R,Carelli A,Canonaco Mdoi
10.1016/j.bbr.2010.11.014subject
Has Abstractpub_date
2011-04-15 00:00:00pages
288-95issue
2eissn
0166-4328issn
1872-7549pii
S0166-4328(10)00738-2journal_volume
218pub_type
杂志文章abstract：:In the present study we investigated the action of alpha-tocopherol and ascorbic acid on the effects elicited by chronic hyperprolinemia on rat performance in the Morris water maze. Rats received subcutaneous injections of proline (experimental group) twice a day, with 10 h-interval, from the 6 to 28th days of age or ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2005.08.014
更新日期：2006-04-03 00:00:00
abstract：:A chronic 10-day amphetamine (Amp) protocol was used to induce significant long-term decrements of the striatal [18F]fluoro-L-DOPA influx rate constant (FDOPA Ki) in the vervet monkey. Longitudinal FDOPA-positron emission tomography (PET) assessment in Amp-treated subjects subsequently revealed a gradual recovery of s...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(97)83333-5
更新日期：1997-03-01 00:00:00
abstract：:Spontaneous alternation was examined in young rats following microinjections of antinicotinic agents into one of the 4 hippocampal sites: anterodorsal, or posteroventral dentate gyrus, hippocampal gyrus, or entorhinal cortex. In control and saline-injected animals, the alternation rate was shown to grow suddenly from ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(89)80142-1
更新日期：1989-12-01 00:00:00
abstract：:Value-based action selection has been suggested to be realized in the corticostriatal local circuits through competition among neural populations. In this article, we review theoretical and experimental studies that have constructed and verified this notion, and provide new perspectives on how the local-circuit select...
journal_title：Behavioural brain research
pub_type： 杂志文章,评审
doi：10.1016/j.bbr.2016.05.017
更新日期：2016-09-15 00:00:00
abstract：:In this study we have explored differences in animal reactivity to conditioned aversive stimuli using the conditioned fear test (a contextual fear-freezing response), in rats subjected to the selective lesion of the prefrontal cortex serotonergic innervation, and differing in their response to the acute painful stimul...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2008.04.003
更新日期：2008-10-10 00:00:00
abstract：:The performance of subjects walking blindly to previously inspected visual targets (located at 5, 10 or 15 m from the subjects) was studied in 2 experiments. In Expt. 1, subjects selected as good visual imagers were instructed to build up a mental representation of the target. Then they had to either actually walk or ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(89)80088-9
更新日期：1989-08-01 00:00:00
abstract：:Autism is a heterogeneous, behaviorally defined developmental disorder with unknown etiology but thought to be the result of environmental insult acting upon the developing brain of a genetically susceptible individual. Approximately 30% of individuals with autism have normal development up to the age of about 30 mont...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2010.02.032
更新日期：2010-07-11 00:00:00
abstract：:Male rats both eat more and weigh more than females. Differences in food intake and body weight result, at least partly, from differences in gonadal hormone secretions. The present experiments were designed to investigate whether sex differences in food motivation might contribute to the behavioral differences observe...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/0166-4328(88)90118-0
更新日期：1988-03-01 00:00:00
abstract：:This study determined if the hippocampal theta rhythm showed phase relationships or changes in amplitude and frequency with the onset of stimuli and locomotion in a task in which auditory cues initiated and suppressed approach locomotion. Rats with electrodes in the dorsal hippocampus lapped at a milk dipper and were ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2004.12.006
更新日期：2005-05-28 00:00:00
abstract：:In the USA, the stimulant drug methylphenidate (MPH) is used to treat a large number (2 million or more per year) of children with Attention Deficit Hyperactivity Disorder (ADHD). Although the US FDA approved MPH in the 1960s, the pharmacokinetic (PK) properties of serum concentrations of MPH in children with ADHD wer...
journal_title：Behavioural brain research
pub_type： 杂志文章,评审
doi：10.1016/s0166-4328(01)00433-8
更新日期：2002-03-10 00:00:00
abstract：:Behavioral and neurobiological parallels between rabbits and humans in eyeblink classical conditioning (EBCC) make this paradigm potentially useful for preclinical and clinical trials. The known involvement of hippocampal pyramidal cells in EBCC in rabbits led us to evaluate the nootropic compound, nefiracetam. In Exp...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(97)86065-2
更新日期：1997-02-01 00:00:00
abstract：:Previous experiments have shown that a post-training glucose injection can retroactively and non-contingently improve the retention of a previously learned association. To date, the memory-improving action of glucose has only been demonstrated in rats for negatively-motivated tasks. The present experiment sought to ge...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/0166-4328(88)90022-8
更新日期：1988-12-01 00:00:00
abstract：:Pigeon hippocampal neurons display two spatial response profiles: location fields frequently at goals, and path fields connecting goals. We recorded from 15 location and six path cells, with color cues positioned near four goal locations. Following color cue rotation, most location cells (12/15) shifted their response...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2007.09.031
更新日期：2008-03-05 00:00:00
abstract：:The aim of present research is to study the temporal structure of the behavior in two strains of rats with different basal level of emotionality. To this purpose, the temporal profile of the behavior in Wistar rat and in the spontaneously more anxious DA/Han strain was analyzed in the Elevated Plus Maze. Both quantita...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2013.05.016
更新日期：2013-08-01 00:00:00
abstract：:Coca-paste (CP) is a drug of abuse that so far has not been extensively characterized. CP is an intermediate product of the cocaine alkaloid extraction process from coca leaves, hence it has a high content of cocaine base mixed with other chemical substances (impurities) and it is probably adulterated when it reaches ...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2011.03.005
更新日期：2011-08-01 00:00:00
abstract：:The complexity of the brain, in which different neuronal cell types are interspersed and complexly interconnected, has posed a major obstacle in identifying pathophysiological mechanisms underlying prevalent neurological disorders. This is largely based in the inability of classical experimental approaches to target d...
journal_title：Behavioural brain research
pub_type： 杂志文章,评审
doi：10.1016/j.bbr.2013.07.007
更新日期：2013-10-15 00:00:00
abstract：:We aimed to analyze whether hypertension and changes in nitric oxide (NO) generation are associated with alterations of locomotor activity in rats. Male Wistar rats treated with an inhibitor of NO synthase, NG-nitro-L-arginine methyl ester (L-NAME, 40 mg/kg/day) for 6 weeks, control Wistar rats, spontaneously hyperten...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2006.07.021
更新日期：2006-11-01 00:00:00
abstract：:Genetically altered mice are available on different background strains. While respective backcrosses are often performed for pragmatic reasons, e.g. references, comparability, or existing protocols, the interaction between the mutations per se and the background strain often remains a neglected factor. The heterozygou...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2017.07.037
更新日期：2017-09-29 00:00:00
abstract：:Regional cerebral blood flow (rCBF) was studied in a task, where a preparatory stimulus (S1) cued for an imperative second stimulus (S2) which was associated with a response. Two preparatory stimuli cued unequivocally each for one response. In contrast, a third preparatory stimulus cued for two response alternatives w...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2005.05.014
更新日期：2005-09-08 00:00:00
abstract：:Previous behavioural studies strongly indicated on potential antidepressant-like activity of mGlu7 positive allosteric modulator, AMN082 (N,N'-dibenzhydrylethane-1,2-diamine dihydrochloride). However, the mechanism of action of this drug was not clear. Some recent data, showing possible off-target activities of AMN082...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2012.10.004
更新日期：2013-02-01 00:00:00
abstract：:Cyclooxygenase-2 (COX-2) is thought to play a role in the pathogenesis of various neurodegenerative disorders. However, clinical trials with COX-2 inhibitors have yielded contradictory results. In the present study we investigated whether COX-2 plays a role in the behavioral and cognitive impairments seen in olfactory...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2012.07.007
更新日期：2012-10-01 00:00:00
abstract：:Rats readily learn to anticipate a reward signaled by an external stimulus. Anticipatory behaviors evoked by conditioned stimuli include 50 kHz ultrasonic vocalizations (USVs), a proposed behavioral correlate of positive affect and activation of midbrain dopamine pathways. Rats can also anticipate a reward, such as fo...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2015.02.003
更新日期：2015-05-01 00:00:00
abstract：:The inferior olive (IO) is a required component of neural circuits controlling the classical conditioning of eyeblink responses. Previous reports indicated that lesioning or inactivating the IO abolishes conditioned eyeblinks (CRs), but there was disagreement regarding the timing of the CR performance deficit. As a re...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2006.12.012
更新日期：2007-03-12 00:00:00
abstract：:Is addiction a medical disorder, and if so, what kind of disorder is it? Addiction is considered a brain disease by NIDA, based on observed brain changes in addicts that are interpreted as brain damage. Critics argue that the brain changes result instead from normal neuroplasticity and learning in response to the inte...
journal_title：Behavioural brain research
pub_type： 杂志文章,评审
doi：10.1016/j.bbr.2020.112665
更新日期：2020-07-01 00:00:00
abstract：:Stressful life events and chronic stress are implicated in the development of depressive disorder in humans. Neuropeptide Y (NPY) and galanin have been shown to modulate the stress response, and exert antidepressant-like effects in rodents. To further investigate these neuropeptides in depression-like behaviour, NPY a...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2010.08.044
更新日期：2011-01-20 00:00:00
abstract：:Serotonin plays a major role in sensory processing especially with in the primary auditory cortex. The so-called loudness dependence of auditory evoked potentials is generated by pyramidal cells of the primary auditory cortex (LDAEP) which are modulated by serotonergic projection fibers to the main regulators of pyram...
journal_title：Behavioural brain research
pub_type： 杂志文章,评审
doi：10.1016/j.bbr.2014.05.042
更新日期：2015-01-15 00:00:00
abstract：:Bipolar disorder is a psychiatric condition characterised by episodes of mania, depression, and underlying mood instability. Anticonvulsant drugs have an established place in the treatment of the disorder, but identifying novel drugs in this class is complicated by the absence of validated animal models. We have evalu...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2004.08.015
更新日期：2005-03-07 00:00:00
abstract：:Midbrain tectum (MT) structures such as the dorsal periaqueductal gray matter and deep layers of superior colliculus are well-known for the organization and generation of defensive behaviour. Electrical stimulation or microinjection of GABA antagonists into these structures produce aversive behaviour. In order to dete...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/0166-4328(93)90159-n
更新日期：1993-12-31 00:00:00
abstract：:It has been proposed that long-term potentiation (LTP), a form of activity-dependent modification of synaptic efficacy, may be a synaptic mechanism for certain types of learning. Recent studies on the insular cortex (IC), a region of the temporal cortex implicated in the acquisition and storage of conditioned taste av...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/s0166-4328(01)00329-1
更新日期：2002-02-01 00:00:00
abstract：:We hypothesized that memantine, an anti-dementia drug, may be useful for the treatment of excessive daytime sleepiness. The effect of memantine on excessive sleepiness after 6 h sleep deprivation was studied in comparison with that of methylphenidate, and the involvement of the dopaminergic system in the wakefulness-p...
journal_title：Behavioural brain research
pub_type： 杂志文章
doi：10.1016/j.bbr.2009.09.025
更新日期：2010-01-20 00:00:00
