Abstract：
:The effect of sphingosine on intracellular calcium signalling in glioma C6 cells was studied with Fura-2 video imaging technique. Sphingosine had a direct effect on changes in cytosolic Ca2+ concentration only when applied at high concentration of 100 microM, causing the cytosolic Ca2+ level to rise. However, at a much lower concentration of 15 microM sphingosine diminished calcium responses triggered by thapsigargin (a specific inhibitor of calcium pump in the endoplasmic reticulum) and ionomycin (calcium ionophore). Since responses to thapsigargin and ionomycin were blocked in Ca(2+)-free medium, we postulate that sphingosine is acting on the intracellular calcium stores. Additionally, sphingosine (at 15 microM and 100 microM) markedly decreases thapsigargin-induced sustained elevation in cytosolic Ca2+ concentration, indicating its inhibitory effect on thapsigargin-evoked Ca2+ influx. Sphingosine is a known inhibitor of protein kinase C and the involvement of this enzyme is postulated in the modulatory effects of sphingosine on intracellular calcium dynamics.
journal_name
Acta Neurobiol Exp (Wars)journal_title
Acta neurobiologiae experimentalisauthors
Sabała P,Wiktorek M,Czarny M,Chaban V,Barańska Jsubject
Has Abstractpub_date
1996-01-01 00:00:00pages
507-13issue
2eissn
0065-1400issn
1689-0035journal_volume
56pub_type
杂志文章abstract：:Hypothyroidism affects neuron population dynamics in the hippocampus of the adult rat, with neuronal damage as the main feature of its effect. This effect is prevented by the blockade of NMDA receptors, which suggests that glutamatergic activity mediates cell death in this condition. Glutamate can also stimulate cell ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2014-01-01 00:00:00
abstract：:Huntington's disease is an autosomal dominant progressive neurodegenerative disease, which results in a decreased quality of life and an early death. A high prevalence of vitamin D deficiency was first described in a 2013 study in patients with manifest Huntington's disease, where serum vitamin D level was found to be...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：10.21307/ane-2017-017
更新日期：2016-01-01 00:00:00
abstract：:The intergeniculate leaflet (IGL) of the thalamus constitutes a small but important part of the neural network controlling circadian activity in rodents. It appears that IGL integrates photic cues from retina with non-photic information originating from different nonspecific brain systems. Subsequently, this integrate...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2015-01-01 00:00:00
abstract：:Trimethyltin, an organic compound of tin, is a potent neurotoxicant of a mechanism of action yet to be uncovered. The neuropathological findings that trimethyltin causes selective hippocampal damage with several unique features, highly reminiscent of Ammon's horn sclerosis as a final result, have raised the possibilit...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章,评审
doi：
更新日期：1996-01-01 00:00:00
abstract：:All myelinated fibres along the unbranched pant of the phrenic nerve were teased and measured at regular intervals. At the proximal level, the size frequency distribution is bimodal with peaks at 2 and 7 micrometers. Fibres in most size classes exhibit a slight progressive tapering along their unbranched course in the...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1974-01-01 00:00:00
abstract：:We investigated the responses to insect prey (dead houseflies) in 24 "derivative groups" of workers of the ant Formica polyctena created by taking sets of 25 workers out of nine larger "initial groups" kept in laboratory without queens and brood during the preceding five months. In the derivative groups the ants cease...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:Two experiments involving parallel procedures to investigate stimulus generalization in prefrontal dogs under alimentary and defensive reinforcement were compared. Twelve dogs in the alimentary study were trained on a 50 percent partial reinforcement schedule, and 24 dogs were trained to avoid shock with either contin...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1982-01-01 00:00:00
abstract：:In the filled-space (or Oppel-Kundt) illusion, the filled part of the stimulus for most observers appears longer in comparison with the empty one. In the first two experimental series of the present study, we investigated the illusory effect as a function of continuous filling (by a shaft-line segment) of the referenc...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：10.21307/ane-2017-048
更新日期：2017-01-01 00:00:00
abstract：: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...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2017-01-01 00:00:00
abstract：:Quercetin, one of the major flavonoids, exhibits many beneficial effects on human organism as antihistamine, antioxidant, anti-inflammatory, anticancer and antiviral drug. It is recommended as supplement of healthy diet but still the knowledge of its beneficial effect on normal cells is not satisfactory. We decided to...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:The influence of bilateral injections of serotonin (5-HT) and methysergide (MET) to antero-medial hypothalamus (HA) on carbachol-induced emotional-defensive behavior was investigated. Earlier (15 min) stimulation of 5-HT receptors in HA region by 5-HT injections evoked a decrease in the level of vocal response (number...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
abstract：:Dogs were trained to perform an instrumental avoidance reflex of lifting and holding a limb above a pre-determined level to prevent or to interrupt painful stimulation of the same limb. A tone preceding the stimulation by 0.5 s served as the CS. During the CS the excitability of the motoneuronal pools involved in the ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1973-01-01 00:00:00
abstract：:A subdivided path in the visual field usually appears longer than an empty path of the same length. This phenomenon, known as the filled/empty or Oppel-Kundt illusion, depends on multiple properties of the visual stimulus, but the functional dependences have not been yet precisely characterized. We studied the illusor...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2010-01-01 00:00:00
abstract：:Stroke is the second leading cause of death worldwide, affecting about 240 people a day in South Africa and leaving survivors with residual disabilities. At the moment, there is no clinically approved neuroprotective product for stroke but the consumption of plant polyphenols has been suggested to offer some protectio...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：10.21307/ane-2017-040
更新日期：2017-01-01 00:00:00
abstract：:The involvement of calcium ions in mechanisms of ischemic brain injury has been suggested for several years. Our understanding of the role of intracellular Ca2+ as a trigger of acute neurotoxicity and in the induction of long lasting processes leading to necrotic and/or apoptotic postischemic delayed neuronal death or...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章,评审
doi：
更新日期：1996-01-01 00:00:00
abstract：:The registration of the step phases and the relations between them for all of the four limbs were described in the amygdalar, rubral and funicular cats. The evident changes in motor behavior observed after damage of the amygdala and red nucleus did not result from coordination disorders. Conversely, the damage of the ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
abstract：:A motor alimentary conditioned reflex was elaborated in hippocampectomized and intact albino rats. Food reinforcement followed 100 percent, 50 percent, 33 percent or 25 percent of conditional stimulus presentations (click from a rotating food box). No differences were found in the rate of conditioned alimentary reflex...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1974-01-01 00:00:00
abstract：:Leukemia inhibitory factor (LIF) is a neuroprotective cytokine that is necessary for the normal development of astrocytes. Oxygen-glucose deprivation (OGD) can induce astrocyte proliferation by increasing hypoxia-inducible factor alpha (HIF-1alpha) and vascular endothelial growth factor (VEGF). Here, we studied whethe...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2013-01-01 00:00:00
abstract：:Persons with trisomy 21 (Down syndrome) present different phenotypes, including early neurodegeneration, which is prominent in the brain olfactory areas, and olfactory deficit. The use of in vivo techniques in animal models allows to characterize and follow up these slowly developing phenomena. We explored by means of...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2020-01-01 00:00:00
abstract：:Eight cats were binocularly deprived of pattern vision by rearing in masks from the time of eye opening. Twenty five groups of 3 neurons and 28 neuronal pairs were studied in visual orientation columns of their striate cortices. The crosscorrelograms of neuronal discharges were analyzed and the inference of underlying...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:The pineal hormone melatonin is a potent free radical scavenger. In particular, it quenches what is generally considered the most toxic and damaging free radical produced in the organism, the hydroxyl radical (.OH). Melatonin production in the pineal gland declines progressively with age such that in old animals and e...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章,评审
doi：
更新日期：1994-01-01 00:00:00
abstract：:The changes of intertrial response (ITR) rate along the intertrial interval duration were examined in 30 rats trained in two-way avoidance. The lowest ITR rate was observed just after a cross-through response terminating a trial. Rats trained with a warning signal of darkness showed over-all higher ITR rates and short...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:The aim of this study was to investigate the influence of the GABAergic inhibitory neurones on the absolute and increment retinal sensitivity, determined be measuring b-wave threshold of frog electroretinogram (ERG). We found that GABAergic blockade by picrotoxin (PT -noncompetitive GABA antagonist) had no apparent ef...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:The effects of injections of M- and N-cholinergic blocking agents into the antero-medial hypothalamus (HM) and the midbrain central gray (GC) on the aggressive behavior of cats, evoked by microinjections of carbachol into those areas, were investigated in chronic experiments. The influence of pharmacological suppressi...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:Anxiety disorders are a social problem due to their prevalence and consequences. It is crucial to explore the influence of anxiety on cognitive processes. In this study we recorded EEG activity from 73 subjects (35 patients, 38 controls, matched for age and education) during performance of the Continuous Attention Tas...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：10.21307/ane-2017-007
更新日期：2016-01-01 00:00:00
abstract：:Twenty two months old and eight months old rats were used. They were submitted to object recognition test with 1 min interval between two successive presentations of the same object or two different objects. Initial exploration of the object was lower in aged than in young rats. However, both groups showed comparable ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:In normal dogs a differentiation task consisting of lifting the left or right foreleg in response to the tactile stimuli administered to the left or right side of the body respectively is very difficult, requiring from 500 to 1,000 trials. On the contrary the same task presented to other dogs after transection of the ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1973-01-01 00:00:00
abstract：:The relationship between neocortical high voltage spindle activity (HVS) and the level of arousal (state of vigilance) was investigated in imp-DAK rats. Two groups of single records (6 h and 24 h) and one group of repeated ones (6 h daily for three consecutive days) were analysed. Five levels of arousal (states) were ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:Our work assesses the effects of mu opioid receptor activation on high-threshold Ca2+/Ba2+ currents in freshly dispersed pyramidal neurons of the medial prefrontal cortex in rats. Application of the specific mu receptor agonist (D-Ala2+, N-Me-Phe4+, Gly5+-ol)-enkephalin (DAMGO) at 1 microM decreased Ca2+ current ampli...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:During paradoxical sleep electrical stimulation of the mesencephalic reticular formation and emotiogenic structures in the mesencephalon and diencephalon produced depression or an increase in the theta rhythm of the hippocampal and entorhinal electrical activity. However, stimulation not involving behavioral arousal d...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
