Abstract:
:Effects of L-arginine in the nervous system are often attributed to nitric oxide. Using whole-cell patch pipettes to record membrane currents in voltage-clamp from dopamine neurons in the rat midbrain slice, the present studies found that L-arginine potentiates GABA-dependent membrane currents via a nitric oxide-independent mechanism. L-Arginine (0.3-10 mM) increased the peak amplitude, half-width duration and time constant of decay of GABA(B) receptor-mediated inhibitory postsynaptic currents in a concentration-dependent manner. In the presence of CGP 35348 (300 microM), a GABA(B) receptor antagonist, L-arginine also prolonged the duration of inhibitory postsynaptic currents mediated by GABA(A) receptors, but their amplitudes were reduced. L-Arginine (10 mM) also evoked 17+/-3 pA of outward current (at -60 mV) which was significantly increased in the presence of exogenous GABA (100 microM). Pressure-ejection of GABA from micropipettes produced outward currents mediated by GABA(B) receptors (recorded in bicuculline) or GABA(A) receptors (recorded in CGP 35348); both types of receptor-mediated currents were increased by L-arginine (10 mM). In contrast, outward currents evoked by baclofen, a GABA(B) receptor agonist, were not potentiated by L-arginine. The GABA transport inhibitors NO 711 (1 microM) and nipecotic acid (1 mM) significantly increased the half-width duration and time-constant of decay of GABA(B)-mediated inhibitory postsynaptic currents, thus mimicking effects of L-arginine. However, nitric oxide donors failed to mimic effects of L-arginine on GABA(B) inhibitory postsynaptic currents, and inhibitors of nitric oxide synthesis failed to selectively block the action of L-arginine. These findings suggest that L-arginine potentiates GABA synaptic transmission by a nitric oxide-independent mechanism. Similarities between effects of L-arginine, NO 711 and nipecotic acid suggest that L-arginine inhibits a GABA transporter.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Shen KZ,Cox BA,Johnson SWdoi
10.1016/s0306-4522(97)00024-9subject
Has Abstractpub_date
1997-08-01 00:00:00pages
649-58issue
3eissn
0306-4522issn
1873-7544pii
S0306-4522(97)00024-9journal_volume
79pub_type
杂志文章相关文献
NEUROSCIENCE文献大全abstract::In a previous study, it was shown that populations of climbing fibers, derived from the inferior olivary complex (IOC) contain the peptide corticotropin releasing factor (CRF) and that the expression of this peptide in climbing fibers could be modulated by the level of activity in olivary afferents. The intent of this...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2008.01.076
更新日期:2008-04-22 00:00:00
abstract::The specific mechanism of migraine chronification remains unclear. We previously demonstrated that synaptic plasticity was associated with migraine chronification. EphB receptors and their ligands, ephrinBs, are considered to be key molecules regulating the synaptic plasticity of the central nervous system. However, w...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2019.12.038
更新日期:2020-01-21 00:00:00
abstract::Two major systems of cholinergic projection neurons are found within the centrum of the mammalian brain: the basal nuclear complex, projecting predominantly to the cerebral cortex, amygdala, and hippocampus, and the pontomesencephalotegmental network, innervating primarily the thalamus. Neurons comprising the latter n...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(90)90102-a
更新日期:1990-01-01 00:00:00
abstract::The distribution of seven different binding sites for the transmitters L-glutamate (L-glutamate binding sites and N-methyl-D-aspartate receptor), GABA (GABAA receptor), noradrenaline (alpha 1 receptor), acetylcholine (muscarinic M1 and M2 receptors) and serotonin (5-hydroxytryptamine1 receptor) are analysed in the pri...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(93)90134-2
更新日期:1993-10-01 00:00:00
abstract::Specific high-affinity neurotensin binding sites were labeled in sections of the rat caudal brainstem using a monoiodinated ligand, and their distribution was examined by light microscopic radioautography after fixation with glutaraldehyde. In the medulla, labeled binding sites were mainly concentrated within the dors...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(87)90282-x
更新日期:1987-10-01 00:00:00
abstract::The midbrain is essential for prepulse inhibition (PPI) of the startle reflex, but the exact neural circuits for PPI are not yet determined. Electrical stimulation of the superior colliculus (SC) or pedunculopontine tegmentum was used to characterize the neurons and pathways that mediate PPI and the activation of star...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2006.06.025
更新日期:2006-11-03 00:00:00
abstract::Classic neurotransmitter phenotypes are generally predetermined and develop as a consequence of target-independent lineage decisions. A unique mode of target-dependent phenotype instruction is the acquisition of the cholinergic phenotype in the peripheral sympathetic nervous system. A body of work suggests that the sw...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2008.06.074
更新日期:2008-10-02 00:00:00
abstract::In the brain of young (two weeks old) rats, angiotensin II receptors (AT2 receptors) are found in brain nuclei which receive and integrate direct visual input from the retina, the suprachiasmatic nuclei (containing only AT1 receptors), the lateral geniculate nuclei (containing AT2 receptors) and the superior colliculu...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(94)90460-x
更新日期:1994-02-01 00:00:00
abstract::Postoperative cognitive dysfunction (POCD) is an important complication following major surgery and general anesthesia in older patients. However, the etiology of POCD remains largely to be determined. It is unknown how surgical stress and psychological stress affect the postoperative learning and memory function in g...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2016.02.015
更新日期:2016-04-21 00:00:00
abstract::Amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) are neurodegenerative diseases that overlap clinically, genetically, and pathologically. Dysregulation of fused in sarcoma (FUS) has been hypothesized to cause ALS and FTLD in gain-of-function and/or loss-of-function manners. However, the...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2014.12.007
更新日期:2015-02-26 00:00:00
abstract::Mutations in γ-aminobutyric acid A receptor (GABAA) subunits and sodium channel genes, especially GABRG2 and SCN1A, have been reported to be associated with febrile seizures (FS) and genetic epilepsy with febrile seizures plus (GEFS+). GEFS+ is a well-known family of epileptic syndrome with autosomal dominant inherita...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2020.04.049
更新日期:2020-07-01 00:00:00
abstract::Production of tissue inhibitors of matrix metalloproteinases (TIMPs), a family of secreted proteins with inhibitory actions on matrix metalloproteinases (MMPs), is up-regulated following nerve injuries and is suggested to have protective effects against MMP-mediated tissue damages. To clarify the extracellular signals...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2007.04.047
更新日期:2007-07-13 00:00:00
abstract::Whole-cell voltage-clamp recordings were made from acutely dissociated neurons obtained from the embryonic chick ciliary ganglion. Recording pipettes were filled with salines containing 120 mM CsCl or 120 mM tetraethylammonium-Cl. Application of depolarizing voltage commands evoked L-type Ca2+ currents and, at voltage...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(91)90086-4
更新日期:1991-01-01 00:00:00
abstract::The release of chemical transmitter from nerve terminals is critically dependent on a transient increase in intracellular Ca2+. The increase in Ca2+ may be due to influx of Ca2+ from the extracellular fluid or release of Ca2+ from intracellular stores such as mitochondria. Whether Ca2+ utilized in transmitter release ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(99)00509-6
更新日期:2000-01-01 00:00:00
abstract::In the cerebral cortex, the voltage-gated potassium channel, Kv3.1b, a splicing variant of Kv3.1, has been associated with fast-firing interneurons. Here, we report strong expression of Kv3.1b-protein and mRNA in both Betz and Meynert pyramidal cells of the monkey, as shown by immunohistochemistry and in situ hybridiz...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2004.08.005
更新日期:2004-01-01 00:00:00
abstract::Recent studies have shown a decrease in glial number and glial fibrillary acidic protein (GFAP) levels in the frontal and cingulate cortices of individuals with mood disorders and schizophrenia. In an attempt to verify and expand these findings we examined GFAP messenger ribonucleic acid (mRNA) levels in postmortem se...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2005.02.037
更新日期:2005-01-01 00:00:00
abstract::Cerebral ischemia/reperfusion (I/R) usually leads to the exacerbation of brain injury. In the present research, the effect of BTB and CNC homology 1 (BACH1) on cerebral I/R injury was studied. Mice model of middle cerebral artery occlusion/reperfusion (MCAO/R) and Neuro-2a (N2a) cell model of oxygen-glucose deprivatio...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2020.04.014
更新日期:2020-06-01 00:00:00
abstract::Cognitive flexibility, the ability to adjust behavior in response to new and unexpected conditions in the environment, is essential for adaptation to new challenges and survival. The cholinergic system is an important modulator of this complex behavior however, the exact cholinergic circuits involved in this modulatio...
journal_title:Neuroscience
pub_type: 杂志文章,评审
doi:10.1016/j.neuroscience.2016.09.013
更新日期:2017-03-14 00:00:00
abstract::Interleukin-31 receptor A (IL-31RA) is a newly identified type I cytokine receptor, that is related to gp130, the common receptor of the interleukin (IL) -6 family cytokines. Recent studies have shown that IL-31RA forms a functional receptor complex for IL-31 together with the beta subunit of oncostatin M receptor (OS...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2006.07.009
更新日期:2006-11-03 00:00:00
abstract::There is considerable evidence that on the anterior surface of the heart (which is usually supplied by the left anterior descending and the proximal part of the left circumflex coronary arteries), sympathetic efferent reflexes characterized by tachycardia and/or hypertension predominate following experimental or patho...
journal_title:Neuroscience
pub_type: 杂志文章,评审
doi:10.1016/0306-4522(92)90398-l
更新日期:1992-01-01 00:00:00
abstract::Mice provide a highly valuable resource for investigating learning and memory processes; however, many of the established tasks for evaluating learning and memory were developed for rats. Behaviors of mice in these tasks appear to be driven by different motivational factors, and as a result, they often do not perform ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.12.029
更新日期:2010-03-10 00:00:00
abstract::Interneurons expressing the calcium-binding protein parvalbumin (PV) are a critical component of the inhibitory circuitry of the basolateral nuclear complex (BLC) of the mammalian amygdala. These neurons form interneuronal networks interconnected by chemical and electrical synapses, and provide a strong perisomatic in...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2008.11.017
更新日期:2009-02-18 00:00:00
abstract::Peripheral and central diabetic neuropathies were studied in streptozotocin-diabetic rats, using behavioral, biochemical and electrophysiological techniques. Diabetic rats showed thermal hypoalgesia and decreasing motor nerve conduction velocity at 4 and 8 weeks of diabetes. In addition, amplitude of the evoked potent...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.02.047
更新日期:2009-05-05 00:00:00
abstract::This study compared the pharmacology of adrenergic agents that influence plasma extravasation in normal animals with those agents that influence tissue injury in an inflammatory disease model. Specifically we studied the effects of beta 2- and alpha 2-adrenergic receptor agonists and antagonists on bradykinin-induced ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(91)90184-p
更新日期:1991-01-01 00:00:00
abstract::Properties of excitatory synaptic responses in fast-spiking interneurons (FSIs) and pyramidal neurons (PNs) are different; however, the mechanisms and determinants of this diversity have not been fully investigated. In the present study, voltage-clamp recording of miniature excitatory post-synaptic currents (mEPSCs) w...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.06.034
更新日期:2015-08-20 00:00:00
abstract::Despite a long history of interrogation, the functional organization of motor cortex remains obscure. A major barrier has been the inability to measure and perturb activity with sufficient resolution to reveal clear functional elements within motor cortex and its associated circuits. Increasingly, the mouse has been e...
journal_title:Neuroscience
pub_type: 杂志文章,评审
doi:10.1016/j.neuroscience.2020.07.054
更新日期:2020-12-01 00:00:00
abstract::Adrenergic neurons in the C1 region in the ventrolateral medulla oblongata send descending axons into spinal cord which terminate in thoracic and upper lumbar segments, overlapping the distribution of sympathetic preganglionic neurons. The present study was undertaken to determine whether adrenergic fibers synapse dir...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(89)90099-7
更新日期:1989-01-01 00:00:00
abstract::In synaptosomes prepared from dentate gyrus, activation of the metabotropic glutamate receptor by the specific agonist, trans-1-amino-cyclopentyl-1,3-dicarboxylate, increases release of glutamate in the presence of a low concentration of arachidonic acid. A similar interaction between trans-1-amino-cyclopentyl-1,3-dic...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(95)00579-x
更新日期:1996-06-01 00:00:00
abstract::Rats segregated according to low (LA) or high (HA) anxiety levels have been used as an important tool in the study of fear and anxiety. Since the efficacy of an anxiolytic compound is a function of the animal's basal anxiety level, it is possible that chronic treatment with a benzodiazepine (Bzp) affects LA and HA ani...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.03.073
更新日期:2009-07-07 00:00:00
abstract::Insulin plays diverse roles, including learning and memory, in the central nervous system. SIRT1 has been reported to be involved in the processes of normal learning, memory, and synaptic plasticity. However, whether insulin is directly involved in regulating SIRT1 expression in neurons or whether it affects synapses ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2013.01.034
更新日期:2013-05-15 00:00:00