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Acta Neurobiologiae Experimentalis

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https://www.readbyqxmd.com/read/29369302/antimuscarinic-induced-convulsions-in-fasted-mice-after-food-intake-no-evidence-of-spontaneous-seizures-behavioral-changes-or-neuronal-damage
#1
Nurhan Enginar, Asiye Nurten, Aslı Zengin Türkmen, Gül İpek Gündoğan, Zeynep Güneş Özünal
Prolonged or repeated seizures have been shown to cause spontaneous recurrent seizures, increased anxiety‑related behavior, locomotor hyperactivity, impaired functions of learning and memory, and neuronal damage in the hippocampus and other brain regions in animals. Mice and rats treated with antimuscarinic drugs after fasting for two days or less develop convulsions after being allowed to eat ad libitum. To address whether such behavioral and neuroanatomic changes occur following these convulsions, mice treated i...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29369301/effects-of-ascorbic-acid-on-anxiety-state-and-affect-in-a-non-clinical-sample
#2
Bettina Moritz, Marcelo Liborio Schwarzbold, Ricardo Guarnieri, Alexandre Paim Diaz, Ana Lúcia S Rodrigues, Alcir Luiz Dafre
Objective Given that the literature data indicates that ascorbic acid may have an anxiolytic effect, we hypothesized that a single oral administration of ascorbic acid could acutely affect emotional states. Methods The effects of acid ascorbic supplementation on anxiety and other emotional states were evaluated by the State‑Trait Anxiety Inventory (STAI), and Visual Analogue Mood Scale (VAMS). Immediately before, and 2 hours after receiving a single ascorbic acid dose (1000 mg) or placebo, 142 graduate students were evaluated by the STAI and VAMS in a randomized, double‑blind, placebo‑controlled trial...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29369300/interaction-between-the-serotoninergic-and-gabaergic-systems-in-frog-retina-as-revealed-by-electroretinogram
#3
Elka Popova, Petia Kupenova
Functional interactions between serotoninergic and GABAergic systems in the vertebrate retina are largely unknown. In this study, the effects of isolated or combined stimulation of the serotonin receptors (with 100 μM serotonin) and ionotropic GABAA and GABAC receptors (with 5 mM TACA) on the electroretinographic (ERG) ON (b‑wave) and OFF (d‑wave) responses were investigated in frog eyecup preparations. It was found that serotonin alone produced a significant enhancement of the b‑ and d‑wave amplitude, while TACA alone caused its marked diminution...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29369299/axonal-outgrowth-stimulation-after-alginate-mesenchymal-stem-cell-therapy-in-injured-rat-spinal-cord
#4
Juraj Blaško, Eva Szekiova, Lucia Slovinska, Jozef Kafka, Dasa Cizkova
Despite strong efforts in the field, spinal cord trauma still belongs among the untreatable neurological conditions at present. Given the complexity of the nervous system, an effective therapy leading to complete recovery has still not been found. One of the potential tools for supporting tissue regeneration may be found in mesenchymal stem cells, which possess anti‑inflammatory and trophic factor‑producing properties. In the context of transplantations, application of degradable biomaterials which could form a supportive environment and scaffold to bridge the lesion area represents another attractive strategy...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29369298/effects-of-different-delayed-exercise-regimens-on-cognitive-performance-in-fimbria%C3%A2-fornix-transected-rats
#5
Elise Wogensen, Linda Marschner, Marie Gajhede Gram, Siri Mehlsen, Valdemar H B Uhre, Pernille Bülow, Jesper Mogensen, Hana Malá
Studies have shown that exercise can positively influence cognitive performance after brain injury. This study investigated the effects of different exercise regimens on allocentric place learning after fimbria‑fornix (FF) transection. One hundred and sixteen pre‑shaped rats were subjected either to a mechanical transection of the FF or control sham surgery and divided into following groups: i) no exercise (NE), ii) voluntary exercise in a running wheel (RW), iii) forced swimming exercise administered as interval training of short (3x5 min) duration (FS‑SI), iv) forced swimming exercise administered as interval training of long (3x15 min) duration (FS‑LI), v) forced swimming exercise administered as one session of short (5 min) duration (FS‑SS), and vi) forced swimming exercise administered as one session of long (15 min) duration (FS‑LS)...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29369297/antiallodynic-effect-of-intrathecal-resiniferatoxin-on-neuropathic-pain-model-of-chronic-constriction-injury
#6
Julia Risso Parisi, Ana Laura Martins de Andrade, Josie Resende Torres Silva, Marcelo Lourenço Silva
INTRODUCTION: Injuries and/or dysfunctions in the somatosensory system can lead to neuropathic pain. Transient receptor potential vanilloid sub‑type 1 (TRPV1) play an important role in the development of allodynia and hyperalgesia following injury and the ensuing inflammatory conditions. Resiniferatoxin (RTX) is an ultrapotent synthetic TRPV1 agonist and many different administration routes are available for different mechanisms and different effects. RTX is used intraperitonially as a model of neuropathic pain or epidurally and topically to produce prolonged analgesic effects...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29369296/top-down-and-bottom-up-competition-in-visual-stimuli-processing
#7
Tomasz S Ligeza, Agnieszka D Tymorek, Mirosław Wyczesany
Limited attention capacity results that not all the stimuli present in the visual field are equally processed. While processing of salient stimuli is automatically boosted by bottom‑up attention, processing of task‑relevant stimuli can be boosted volitionally by top‑down attention. Usually, both top‑down and bottom‑up influences are present simultaneously, which creates a competition between these two types of attention. We examined this competition using both behavioral and electrophysiological measures...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29369295/omitted-stimulus-potential-depends-on-the-sensory-modality
#8
Oscar Hernando Hernández, Karla María Hernández-Sánchez
Determining the characteristics of Omitted Stimulus Potential (OSP) parameters using different sensory modalities is important because they reflect timing processes and have a substantial influence on time perception. At the same time, the central mechanisms of time perception associated with sensory processing can modulate cortical brain waves related to cognition. This experiment tested the relationship between parameters of the whole OSP brain wave when trains of auditory, visual or somatosensory stimuli were applied...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29369294/developmental-neurotoxicants-and-the-vulnerable-male-brain-a-systematic-review-of-suspected-neurotoxicants-that-disproportionally-affect-males
#9
Janet K Kern, David A Geier, Kristin G Homme, Paul G King, Geir Bjørklund, Salvatore Chirumbolo, Mark R Geier
The prevalence of neurodevelopmental disorders (NDs), including autism spectrum disorder, attention‑deficit/hyperactivity disorder, tic disorder, obsessive‑compulsive disorder, and emotional disturbances, has increased notably in the past few decades. To date, debate continues as to the origins of NDs. Increases in widespread exposure to and bioaccumulation of chemical neurotoxicants have paralleled the upsurge in NDs, and are suggested to be causal agents for NDs. One consistent aspect of NDs is the male preponderance...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29182617/in-vivo-stimulation-of-locus-coeruleus-effects-on-amygdala-subnuclei
#10
Elisa Rodríguez-Ortega, Fernando Cañadas, Francisca Carvajal, Diana Cardona
The locus coeruleus (LC) is the major noradrenergic nucleus and sends projections to almost all brain areas. A marked increase in norepinephrine release has been demonstrated in several brain areas in response to exposure to acute stressful stimuli, especially those innervated by LC projections. One of the brain areas innervated by LC neurons is the amygdala, a structure highly involved in emotional processes and memory formation. The aim of this study was to increase knowledge of the functional connectivity between the LC and the amygdala subnuclei...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29182616/marble-burying-as-compulsive-behaviors-in-male-and-female-mice
#11
George T Taylor, Sandra Lerch, Sabine Chourbaji
Marble burying is considered an, albeit controversial, animal model of the compulsive like behaviors of obsessive-compulsive disorder (OCD). Hallmark features of OCD patients are similarities and, more prominent, differences from anxiety disorders, e.g., the absence of sex differences and resistance to spontaneous remission. We report an experiment on marble burying by male and female C57/BL6/N mice. Animals were administered either the classic anxiolytic drug, diazepam, that targets the GABA receptor or a "pure" inhibitor of the serotonin transporter, escitalopram, that has been reported to be particularly effective in OCD...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29182615/effects-of-individual-stressors-used-in-a-battery-of-chronic-unpredictable-stress-on-long-term-plasticity-in-the-hippocampus-of-juvenile-rats
#12
Alexandra A Gorbunova, Irina V Kudryashova, Anna O Manolova, Margarita R Novikova, Mikhail Yu Stepanichev, Natalia V Gulyaeva
We have studied alterations in the properties of long-term potentiation (LTP) in hippocampal slices of juvenile rats induced by the exposure of animals to different individual stressors usually used in batteries of chronic unpredictable stress (CUS), a widely used model of depression. Social isolation for 16 h did substantially affect neither the magnitude and nor the development of LTP. The effects of stroboscopic illumination and water deprivation appeared most severe, though opposite: the first stressor had activating effect, whereas the second one inhibited the development of LTP...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29182614/tiapride-prevents-the-aversive-but-not-the-rewarding-effect-induced-by-parabrachial-electrical-stimulation-in-a-place-preference-task
#13
María M Hurtado, Raquel García, Amadeo Puerto
The parabrachial complex has been related to the processing of both rewarding and aversive signals. This pontine area is activated after the gastrointestinal administration of rewarding nutrients, in taste aversion learning, and in response to the reinforcing and aversive effects of some drugs of abuse. Electrical stimulation of this region can induce, in different animals, preference or aversion behaviors towards a place in a rectangular three-chamber maze task. This study examined the effect of tiapride, a D2/D3 receptor antagonist, on the aversive or rewarding effects induced by electrical stimulation of the external lateral parabrachial subnucleus (NLPBe)...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29182613/assessment-of-type-1-and-type-3-deiodinase-expression-levels-in-depressive-disorders
#14
Elżbieta Gałecka, Anna Kumor-Kisielewska, Agata Orzechowska, Michael Maes, Paweł Górski, Janusz Szemraj
A depressive disorder is a disease characterized by a heterogenous background. The important processes observed and diagnosed in depressed patients indicate that the etiology of depression may include disturbances in thyroid hormone (TH) levels and the occurrence of immune-inflammatory activation. Type 1 (DIO1) and type 3 (DIO3) iodothyronine deiodinases are the enzymes which determine the peripheral and tissue levels of TH, but also interfere with immunological cells and inflammatory processes. We aimed to investigate the levels of DIO1 and DIO3 in the patients suffering from recurrent depressive disorders (rDD)...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29182612/nucleus-accumbens-local-field-potential-power-spectrums-phase-amplitude-couplings-and-coherences-following-morphine-treatment
#15
Chayaporn Reakkamnuan, Dania Cheaha, Ekkasit Kumarnsit
In the past decade, neural processing has been extensively studied in cognitive neuroscience. However, neural signaling in the nucleus accumbens (NAc) that might clarify reward process remained to be investigated. Male Swiss albino ICR mice implanted with intracranial electrodes into the NAc and the ventral tegmental area (VTA) were used for morphine administration and local field potential (LFP) recording. One-way ANOVA revealed significant increases in low (30.3-44.9 Hz) and high (60.5-95.7 Hz) gamma powers in the NAc following morphine administration (5 and 15 mg/kg, i...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29182611/the-differential-effects-of-neuroleptic-drugs-and-pacap-on-the-expression-of-bdnf-mrna-and-protein-in-a-human-glioblastoma-cell-line
#16
Marta Jóźwiak-Bębenista, Magdalena Jasińska-Stroschein, Edward Kowalczyk
Despite numerous studies, the molecular mechanisms underpinning the action of antipsychotic drugs remain not fully understood. It has been suggested that, in addition to the modulation of monoaminergic neurotransmission, antipsychotic drugs can also affect the expression of neurotrophic factors in the brain. The present study examines the effects of a first-generation neuroleptic drug (FGA; haloperidol) and two second-generation neuroleptic drugs (SGAs; olanzapine and amisulpride) on the expression and levels of brain-derived neurotrophic factor (BDNF) in an astrocyte-like T98G glioblastoma cell line...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/29182610/bdnf-expression-in-cat-striate-cortex-is-regulated-by-binocular-pattern-deprivation
#17
Karolina Laskowska-Macios, Lutgarde Arckens, Małgorzata Kossut, Kalina Burnat
Deprivation of patterned visual information, as in early onset congenital cataract patients, results in a severe impairment in global motion perception. Previously we reported a delayed maturation of the peripheral visual field representation in primary visual area 17, based on a 2-D DIGE screen for protein expression changes and in situ hybridization for the activity reporter gene ZIF268. To corroborate these findings we here explore the binocular pattern deprivation (BD)-regulated expression of brain-derived neurotrophic factor (BDNF), a well-described neurotrophin precipitously regulated by early visual experience...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28691723/effect-of-ethanol-on-the-visual-evoked-potential-in-rat-dynamics-of-on-and-off-responses
#18
Redas Dulinskas, Rokas Buisas, Valentina Vengeliene, Osvaldas Ruksenas
The effect of acute ethanol administration on the flash visual-evoked potential (VEP) was investigated in numerous studies. However, it is still unclear which brain structures are responsible for the differences observed in stimulus onset (ON) and offset (OFF) responses and how these responses are modulated by ethanol. The aim of our study was to investigate the pattern of ON and OFF responses in the visual system, measured as amplitude and latency of each VEP component following acute administration of ethanol...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28691722/potential-role-of-dopamine-transporter-in-behavioral-flexibility
#19
Anita Cybulska-Klosowicz, Julia Dabrowska, Sebastian Niedzielec, Renata Zakrzewska, Aleksandra Rozycka
Behavioral flexibility is subserved by the prefrontal cortex and the basal ganglia. Orbitofrontal cortex (OFC) and dorsomedial striatum (DMS) form a functional frontocorticostriatal circuit crucial for the mediation of flexibility during reversal learning via dopamine (DA) neurotransmission. The regulatory control in maintaining DA homeostasis and function is provided by the dopamine transporter (DAT), which therefore likely plays a significant role in controlling the influence of DA on cognitive processes...
2017: Acta Neurobiologiae Experimentalis
https://www.readbyqxmd.com/read/28691721/nonlinear-dynamics-analysis-of-the-human-balance-control-subjected-to-physical-and-sensory-perturbations
#20
Mohammed N Ashtiani, Azghani Mahmood-Reza
Postural control after applying perturbation involves neural and muscular efforts to limit the center of mass (CoM) motion. Linear dynamical approaches may not unveil all complexities of body efforts. This study was aimed at determining two nonlinear dynamics parameters (fractal dimension (FD) and largest Lyapunov exponent (LLE)) in addition to the linear standing metrics of balance in perturbed stance. Sixteen healthy young males were subjected to sudden rotations of the standing platform. The vision and cognition during the standing were also interfered...
2017: Acta Neurobiologiae Experimentalis
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