Abstract:
:Application of 4-aminopyridine (4AP) has previously been reported to produce different patterns of epileptiform discharges in entorhinal cortex-hippocampal-slices. Here we describe that 4-AP induced epileptiform activity in the EC becomes insensitive to anticonvulsant drugs (phenytoin, carbamazepine, valproic acid, phenobarbital) when GABAergic transmission is blocked by bicuculline. We propose that the activities induced by 4-aminopyridine and bicuculline may provide an in vitro model for the development of new drugs against difficult-to-treat focal epilepsy.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Brückner C,Stenkamp K,Meierkord H,Heinemann Udoi
10.1016/s0304-3940(99)00341-9keywords:
subject
Has Abstractpub_date
1999-06-25 00:00:00pages
163-5issue
3eissn
0304-3940issn
1872-7972pii
S0304-3940(99)00341-9journal_volume
268pub_type
杂志文章abstract::Reactive oxygen species and inflammatory signaling have been identified as pivotal pathophysiological factors contributing to epileptogenesis. Considering the development of combined anti-inflammatory and antioxidant treatment strategies with antiepileptogenic potential, a characterization of the time course of microg...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2015.05.041
更新日期:2015-07-10 00:00:00
abstract::Effects of the 1-methyl-4-phenylpyridinium ion (MPP+) on DOPA formation and phosphorylation of tyrosine hydroxylase (TH) of rat pheochromocytoma PC12h cells were examined after the cells were cultured with MPP+. DOPA formed from endogenous tyrosine in PC12h cells after a 3-day culture with 100 microM MPP+ was decrease...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(88)90383-7
更新日期:1988-06-29 00:00:00
abstract::Receptor gated Ca2+ entry has been associated with transient receptor potential (TRP) proteins encoded by several different genes. Here, we compare expression of mRNA for TRP isoforms encoded by genes TRP1-6 in the rat substantia nigra and whole brain. The substantia nigra and the whole brain expressed mRNA predominan...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(01)01533-6
更新日期:2001-03-09 00:00:00
abstract::In the neuritic plaques of Alzheimer's disease, abnormal neuritic processes cluster around a core of beta-amyloid protein. Previous data have shown that beta 1-28, a peptide homologous to the first 28 amino acid residues of beta-amyloid protein, enhanced survival without affecting neuritic extension or branching in cu...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(90)90867-9
更新日期:1990-03-14 00:00:00
abstract::Genetic factors have been reported to contribute to the liability of suicide. We aimed to investigate functional polymorphisms in eight genes (serotonin transporter, SLC6A4; receptors, 5HTR1A, 1B, 5HTR2A; Tryptophan Hydroxylase, TPH1, TPH2; Monoamine Oxidase, MAOA and G Protein Subunit Beta 3, GNB3) to investigate the...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2017.07.020
更新日期:2017-08-24 00:00:00
abstract::6-hydroxydopamine (6-OHDA) is usually thought to cross cell membrane through dopamine uptake transporters, to inhibit mitochondrial respiration and to generate intracellular reactive oxygen species. In this study, we show that the anti-oxidants catalase, glutathione and N-acetyl-cysteine are able to reverse the toxic ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(00)00948-4
更新日期:2000-04-14 00:00:00
abstract::Rat brain slices containing the nucleus tractus solitarius loaded with [3H]5-hydroxytryptamine ([3H]5-HT) for superfusion were stimulated at (3 Hz, 25 mA, 1 min) resulting in fractional release ratios S2/S1 of 0.89 for [3H]5-HT in the presence of the serotonin uptake inhibitor 1.0 microM 6-nitroquipazine (6-NQ). alpha...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(95)11450-b
更新日期:1995-04-14 00:00:00
abstract::The effect of PD-168077 (N-methyl-4-(2-cyanophenyl)piperazynil-3-methylbenzamide maleate), a selective D4 dopamine receptor agonist, injected into the paraventricular nucleus of the hypothalamus on penile erection was studied in male rats. PD-168077 (1-200 ng) induced penile erection in a dose-dependent manner. The mi...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2004.12.053
更新日期:2005-04-29 00:00:00
abstract::The insular cortex has emerged as a novel target for nicotine addiction research. One unresolved question about the insular cortex is whether its neurons exhibit nicotine-induced dendritic remodeling similar to other brain regions implicated in nicotine addiction. To test this question, Long-Evans rats were administer...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2012.03.064
更新日期:2012-05-10 00:00:00
abstract::Central administration of colchicine causes accumulation of catecholamines in nerve cell bodies and enhances their visualisation in the rat brain by the formaldehyde-glutaraldehyde (FAGLU) histofluorescence method. The detection of catecholamine-containing nerve cells by the FAGLU method was considerably improved in r...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(84)90176-9
更新日期:1984-12-21 00:00:00
abstract::In the present study, we demonstrate that the histopathologic features of myelin oligodendrocyte glycoprotein (MOG) peptide 35-55-induced experimental autoimmune encephalomyelitis (EAE) in C57BL/6 mice closely mirror the hallmarks of MS pathology. On the one hand, we depict a time-dependent transition from acute infla...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2011.03.021
更新日期:2011-05-02 00:00:00
abstract::Orthodromic stimulation with frequencies from 1 to 30 Hz causes facilitation of extracellularly recorded population spikes and a decrease of extracellular Ca2+ concentration ( [Ca2+]o ) monitored with ion selective microelectrodes at the cell body layer of area CA1 of the hippocampal slice. Reducing the Ca2+ content o...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(83)90271-9
更新日期:1983-12-11 00:00:00
abstract::Microrecording of single unit response to contact heat-evoked potential (CHEP) were performed in right ventral posterior lateral (VPL) thalamus during deep brain stimulation (DBS) surgery in a patient with chronic neurogenic pain. In our patient, neurons (n = 10) recorded in the ventral thalamus fired at a higher rate...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2004.06.024
更新日期:2004-09-09 00:00:00
abstract::The periaqueductal gray (PAG) is involved in motor activities, such as movements of the neck, back and hind limbs, cardiovascular regulation, micturition, vocalization, and mating behavior, as well as in nociception control. To accomplish these functions the PAG uses information from other parts of the limbic system, ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00714-3
更新日期:1997-11-28 00:00:00
abstract::A neurogenic contribution to joint inflammation has been demonstrated in rat adjuvant arthritis, however as inflammatory mechanisms vary between species it is unclear whether these observations can be applied more generally. The aim of this study was to assess the neurogenic contribution to cellular infiltration and o...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(00)01790-0
更新日期:2001-02-23 00:00:00
abstract::Nitric oxide (NO) exerts cytotoxic effects on various cells including neuronal cells. Glial NO production, mediated via induction of inducible NO synthase (iNOS), enhances neurotoxicity associated with the N-methyl-D-aspartate (NMDA) receptor. The present study examined whether nicotinamide, an inhibitor of poly (ADP-...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00373-x
更新日期:1997-06-06 00:00:00
abstract::Methamphetamine (METH) may cause long‒lasting neurotoxic effects and cognitive impairment. On the other hand, the ovarian hormones estrogen and progesterone have neuroprotective effects. In the current study, we aimed to examine the effects of estrogen and progesterone on anxiety‒like behavior and neuronal damage in M...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2021.135652
更新日期:2021-01-19 00:00:00
abstract:BACKGROUND:Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a subcortical, inherited, cerebral small vessel disease. Several studies have revealed the involvement of specific cortical regions. However, the structural brain alterations and their clinical correlation...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2020.135388
更新日期:2020-11-01 00:00:00
abstract::To investigate the working mechanism of the conflict processing system, pairs of colored numbers were sequentially presented on a screen to subjects. They were asked to determine if the magnitude or the color of the two numbers was identical. Event-related potentials (ERPs) were recorded at the same time. A negative p...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(00)01757-2
更新日期:2001-02-09 00:00:00
abstract::Damaged axons in the adult central nervous system (CNS) fail to regenerate spontaneously due to several intrinsic and extrinsic factors that inhibit axon elongation. An extrinsic inhibitory factor, repulsive guidance molecule-a (RGMa), is upregulated around spinal cord lesion sites. Inhibition of RGMa using an antibod...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2019.134329
更新日期:2019-09-14 00:00:00
abstract::In decerebrate cats, intracellular recordings were made in 124 expiratory neurons displaying either a plateau-phase of depolarization during post-inspiration or a steadily decrementing depolarization throughout expiration. Both groups consisted of vagal motoneurons and non-antidromically activated neurons. Five neuron...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(93)90779-k
更新日期:1993-01-12 00:00:00
abstract::The sexual differences and the seasonal variation in the vasoactive intestinal peptide (VIP) content of the suprachiasmatic nucleus (SCN) of a desert rodent, the jerboa (Jaculus orientalis) were studied using immunocytochemical techniques. During the period of sexual activity (spring-early summer), the VIP immunoreact...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(92)90708-f
更新日期:1992-09-14 00:00:00
abstract::This study investigates whether potassium ion (K+) channels are involved in the nitric oxide (NO)-induced relaxation in segments of the isolated rat basilar artery, mounted onto a wire myograph. A high extracellular K+ concentration partly inhibited the relaxant effects of the NO donors DEA/NO and SIN-1 (3-morpholino-...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(01)02225-x
更新日期:2001-11-02 00:00:00
abstract::Activation of the complement system is believed to be involved in degenerative processes of certain neurological diseases, including Alzheimer disease. Recent data have shown that the mRNAs for these proteins can be detected in brain-derived mRNA. In this study, C4 mRNA was detected by polymerase chain reaction (PCR) ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(93)90652-2
更新日期:1993-07-09 00:00:00
abstract::Parkinson's disease (PD) is a progressive age-related debilitating motor disorder and the second most common neurodegenerative disease after Alzheimer's disease. In this study, we aimed to investigate the expression of 24 candidate miRNAs in PD and to assess their diagnostic value in patients with PD. We collected ser...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2017.02.045
更新日期:2017-03-22 00:00:00
abstract::We have recently observed that the free radical-generating mixture of xanthine and xanthine oxidase (X/XO) can suppress the inhibitory effects of adenosine on synaptic transmission in the hippocampus, but that this action can be mimicked by xanthine alone. We have now clarified the mechanism of these interactions by u...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2004.04.075
更新日期:2004-07-29 00:00:00
abstract::In the rat, unilateral intrastriatal injection of monoclonal antibodies to acetylcholinesterase (AChE) produced ipsilateral disappearance of AChE-positive nerve terminals within striatum and adjacent cortex. No alterations in striatal staining patterns were observed for tyrosine hydroxylase, somatostatin, neuropeptide...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(91)90078-8
更新日期:1991-11-25 00:00:00
abstract::Experiments were done in conscious rats to investigate the effect of intravenous infusion of hypertonic saline on the induction of the protein Fos, in brainstem neurons. Neurons containing Fos-like immunoreactivity were observed in the caudal nucleus of the solitary tract (NTS), the caudal and rostral ventrolateral me...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(93)90270-u
更新日期:1993-08-20 00:00:00
abstract::Attention deficit hyperactivity disorder (ADHD) is a developmental disorder characterized by inattentiveness, motor hyperactivity and impulsivity. According to neuroimaging data, the neural substrate underlying ADHD seems to involve fronto-striatal circuits and the cerebellum. However, there are important discrepancie...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2005.07.020
更新日期:2005-12-02 00:00:00
abstract::Adult mouse sciatic nerves (SNs) with attached dorsal root ganglia (DRG) were analysed for the presence of mitogen activated protein kinase (MAP-K) during normal and regenerative conditions. By immunohistochemistry, MAP-K was found to be present in the normal nerve at low levels in both Schwann cells and DRG nerve cel...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(95)12066-d
更新日期:1995-11-10 00:00:00