Abstract:
:The development of supersensitivity to dopamine by striatal neurons is widely considered to be a response to interruption of dopaminergic synaptic function. However, it is not clear whether pre-existing dopaminergic innervation is in fact necessary for supersensitivity to develop. In this study, rat foetal striatal cells were obtained prior to their innervation by dopaminergic fibres, and grafted into the cortex or thalamus of adult rats. In the absence of dopaminergic innervation, the grafts developed and became organized into striatum-like and non-striatum-like patches. Both in animals with intrathalamic and in animals with intracortical grafts, systemic administration of a low dose of apomorphine (0.25 mg/kg) induced intense fos expression in striatum-like patches not innervated by dopaminergic fibres. These results indicate that pre-existing dopaminergic innervation is not required for the development of supersensitivity, and that dopaminergic innervation is necessary to develop an adequate synergistic interaction between D1 and D2 receptors.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Guerra MJ,Liste I,Rozas G,Tobio J,Labandeira-Garcia JLdoi
10.1016/s0304-3940(96)12445-9subject
Has Abstractpub_date
1996-03-15 00:00:00pages
137-40issue
2-3eissn
0304-3940issn
1872-7972pii
S0304-3940(96)12445-9journal_volume
206pub_type
杂志文章abstract::Restoring corticospinal function after spinal cord injury is a significant challenge as the corticospinal tract elicits no substantive, spontaneous regeneration, and its interruption leaves a permanent deficit. The corticospinal circuit serves multiple motor and sensory functions within the mammalian nervous system as...
journal_title:Neuroscience letters
pub_type: 杂志文章,评审
doi:10.1016/j.neulet.2016.12.003
更新日期:2017-06-23 00:00:00
abstract::Several evidences indicate that PPARgamma stimulation promotes neuronal differentiation. However, to date, no data describe the effects of PPARgamma agonists on neurite outgrowth. Here we have evaluated the effects of pioglitazone, a synthetic PPARgamma agonist, on differentiation and neurite outgrowth in SH-SY5Y huma...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2009.03.014
更新日期:2009-04-24 00:00:00
abstract::We examined the somatotopical relationship between cortical activity and sensory stimulation of reflex areas in reflexology using functional magnetic resonance imaging. Three reflex areas on the left foot, relating to the eye, shoulder, and small intestine were stimulated during the experiment. A statistical analysis ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2008.10.022
更新日期:2008-12-19 00:00:00
abstract::In the present study, we describe the distribution of GABAC ρ3 receptor immunoreactivity in the cortex, striatum and hippocampus of wild type (wt) and 11 weeks old HD transgenic (tg) R6/2 mouse brain. In the brain of wt mice, GABAC ρ3 immunoreactivity is well expressed in neuronal cells, nerve fibers and axonal proces...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2017.01.035
更新日期:2017-02-15 00:00:00
abstract::Transcranial magnetic stimulation is a non-invasive tool in clinical diagnostics and therapy for physiological and psychological diseases and has an increased application in experimental neurophysiology. Despite this, the mechanisms of magnetic stimulation of the central nervous system remain still unclear. We applied...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2012.08.024
更新日期:2012-09-27 00:00:00
abstract::The effects of bilateral cut of the stria terminalis (ST) on the dosage of estradiol benzoate (EB) needed to induce the lordosis reflex in the ovariectomized female rat were examined. Seven different doses ranging 0.5-20 micrograms were given s.c. in oil, daily for 2 days in a counterbalanced order, at 3-week interval...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(94)11173-g
更新日期:1995-01-23 00:00:00
abstract::In vivo electrochemistry was used to determine the effects of locally applied raclopride (a D2 receptor antagonist) and SCH-23390 (a D1 receptor antagonist) on the clearance of locally applied dopamine in the striatum, nucleus accumbens, and medial prefrontal cortex of rats. Chronoamperometric recordings were continuo...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(94)90096-5
更新日期:1994-08-01 00:00:00
abstract::Benzodiazepine (Bzd) agonist, diazepam (Dzp) and inverse agonist methyl beta-carboline-3-carboxylate (beta-CCM); acetylcholinesterase inhibitor, physostigmine (Physo) and muscarinic antagonist, scopolamine (Scopo), were investigated for their mnesic effect in a passive avoidance (PA) task in rats. Impairments were obs...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(94)90808-7
更新日期:1994-12-05 00:00:00
abstract::Several studies have shown that blockade of colony stimulating factor-1 (CSF-1) or its receptor (CSF-1R) inhibits disease progression in rodent models of rheumatoid arthritis (RA); however, the role of the CSF-1/CSF-1R pathway in RA-induced pain and functional deficits has not been studied. Thus, we examined the effec...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2014.09.053
更新日期:2015-01-01 00:00:00
abstract::Intrathecal (i.t.) administration of substance P in the awake rat decreases reaction time (RT) in the tail flick test. In the anaesthetized rat, noxious thermal stimulation of the tail (by immersion of tip in water at 55 degrees C) also decreases RT; this effect is blocked by a substance P antagonist. The present stud...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(89)90085-2
更新日期:1989-07-31 00:00:00
abstract::The epithelial membrane protein 1 (EMP1) plays a role in neuronal differentiation and neurite outgrowth, which are involved in the pathogenesis of major depressive disorder (MDD). We sought to determine whether the EMP1 gene is implicated in MDD. We determined the mRNA expression levels of the EMP1 gene in peripheral-...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2010.12.001
更新日期:2011-02-04 00:00:00
abstract::Effects of severe and mild hypothyroidism on the immobile response to inescapable stress were examined in male Wistar rats using the forced swim paradigm. Rats were exposed to two sessions of inescapable swim stress: pretest (for 15 min) followed by test (for 5 min) 24 h later. Surgically thyroidectomized rats showed ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00664-2
更新日期:1997-10-03 00:00:00
abstract::An event-related decrease in alpha power contralateral to the presentation of a stimulus is now a well-established phenomenon. Two distinct accounts of the functional role of alpha changes are present in the literature that either focus on alpha changes observed during attentional or simple perceptual tasks. This stud...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2019.04.058
更新日期:2019-07-13 00:00:00
abstract::We report a sporadic case of tauopathy with unusual clinical and neuropathological features. The patient presented with progressive symmetric rigid-akinetic parkinsonism and dementia of the subcortical type. Magnetic resonance imaging of the brain revealed atrophy resembling multiple system atrophy. The level of cereb...
journal_title:Neuroscience letters
pub_type: 杂志文章,评审
doi:10.1016/s0304-3940(02)00616-x
更新日期:2002-09-13 00:00:00
abstract::The influence of transient forebrain ischemia on the temporal alteration of NMDA receptor (NMDAR1) mRNAs in the hippocampal formation was analysed by in situ hybridization, RNA blot and in vitro receptor autoradiography ([3H]3-((+)2-carboxypiperazin-4-yl)-propyl-1- phosphonic acid). In the CA1 subfield of the hippocam...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(94)90233-x
更新日期:1994-03-28 00:00:00
abstract::In an isolated preparation which consists of the buccal ganglia and the salivary nerve of Helix lucorum, neuron B2 can be identified by simultaneously recording the soma spike intracellularly and the axon spike extracellularly from the peripheral salivary nerve. The convulsant drug pentylenetetrazol (PTZ) eliminates t...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(99)00382-1
更新日期:1999-06-18 00:00:00
abstract::To evaluate the roles of complement in kainic acid (KA)-induced neuronal damages, the immunohistochemical localization of the complement protein C3 was examined in rat hippocampus after systemic KA injection. The immunoreactivity for C3 was found in glial cells in control rats, and such glial cells were increased in n...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2006.09.037
更新日期:2006-11-27 00:00:00
abstract::The effect of 5-hydroxytryptamine on the spontaneous activity of neurons of the subthalamic nucleus was examined by recording the extracellular unitary activity in an in vitro slice preparation. The most frequent response to 5-hydroxytryptamine (84% of 57 neurons tested) was an increase (twofold of basal at 10 microM)...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(95)11597-p
更新日期:1995-06-02 00:00:00
abstract:BACKGROUND:Animal and neuroimaging studies suggest that the volume of the motor-circuit region decreases in tardive dyskinesia (TD). This study examined the differences in functional connectivity within the motor circuit of patients with schizophrenia with and without TD to further clarify how the dysfunction is relate...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2020.135548
更新日期:2021-01-18 00:00:00
abstract::Argiotoxin636, a component of the spider venom of argiope species, was chemically synthesized together with a number of derivatives in order to analyse their blocking activity on mammalian glutamate receptors. Xenopus laevis oocytes injected with rat brain mRNA served as assay system. The results showed that argiotoxi...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(91)90298-8
更新日期:1991-11-11 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::The potential neurotoxicity of the solvent toluene to the nigrostriatal dopaminergic system was assessed in a rat model of Parkinson's disease. Rats, 1 day after a unilateral injection of 6-hydroxydopamine (6-OH DA) into the substantia nigra, inhaled air or different concentrations of toluene (80, 300 or 1000 ppm), 6 ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(96)13049-4
更新日期:1996-10-11 00:00:00
abstract::It has long been known that primary neurons in the brain and spinal cord exhibit very distinctive dendritic structures. However, it remains unclear whether dendritic processing for signal propagation and channel activation over dendrites is a function of the cell type-specific dendritic structure. By applying an exten...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2015.10.017
更新日期:2015-11-16 00:00:00
abstract::Intracolonic (i.col.) administration of the PAR2-activating peptide (PAR2AP) SLIGRL-NH2 slowly develops visceral hypersensitivity to i.col. capsaicin in ddY mice. Thus, we further analyzed roles of PAR2 in colonic hypersensitivity, using the novel potent PAR2AP, 2-furoyl-LIGRL-NH2 and PAR2-knockout (KO) mice. In ddY m...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2006.03.074
更新日期:2006-07-10 00:00:00
abstract::Diffusion MRI studies characterizing the changes in white matter (WM) due to vascular cognitive impairment, which includes all forms of small vessel disease are reviewed. We reviewed the usefulness of diffusion methods in discriminating the affected WM regions and its relation to cognitive impairment. These studies we...
journal_title:Neuroscience letters
pub_type: 杂志文章,评审
doi:10.1016/j.neulet.2018.12.007
更新日期:2019-02-16 00:00:00
abstract::Despite much study since its discovery in 1995, the effects of orphanin FQ/nociceptin (OFQ/N), the endogenous ligand of the 'orphan' opioid receptor, on nociceptive sensitivity remain unclear. Different laboratories have variously reported hyperalgesic, analgesic, anti-analgesic or no effect of the peptide on thermal ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(99)00012-9
更新日期:1999-02-19 00:00:00
abstract::Foxp2(R552H) knock-in (KI) mice carrying a mutation related to human speech-language disorder exhibit impaired ultrasonic vocalization and poor Purkinje cell development. Foxp2 is a forkhead domain-containing transcriptional repressor that associates with its co-repressor CtBP; Foxp2(R552H) displays reduced DNA bindin...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2011.11.022
更新日期:2012-01-11 00:00:00
abstract::Male and female eels were hypophysectomized by a buccal approach and examined either 2 and 7 weeks (males) or 4 and 5 months (females) later. Intact and sham-operated eels served as controls. Fish were killed by decapitation, and the brains fixed in sublimated Bouin-Hollande solution and embedded in paraffin wax. Fron...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(88)90692-1
更新日期:1988-09-12 00:00:00
abstract::Parkinson's disease (PD) is a common neurodegenerative disease characterized pathologically by the selective loss of dopaminergic neurons in the substantia nigra and the intracellular accumulation of α-synuclein in the Lewy bodies. While the pathogenic mechanisms of PD are poorly understood, many lines of evidence poi...
journal_title:Neuroscience letters
pub_type: 杂志文章,评审
doi:10.1016/j.neulet.2018.04.013
更新日期:2019-04-01 00:00:00
abstract::The myelin oligodendrocyte glycoprotein (MOG) is a minor CNS myelin-specific protein that is an important candidate autoantigen in multiple sclerosis. We now report that MOG mRNA transcripts are present in the peripheral nervous system of rodents and primates at levels approximately ten-fold lower than in brain as dem...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(03)00899-1
更新日期:2003-10-30 00:00:00