Abstract：
:Rats were given daily injections of increasing doses of morphine sulfate (40-100 mg/kg, s.c.), for 4 days. Twenty hours after the last injection of morphine, the animals received bilateral injections of naloxone (1-10 micrograms) into the substantia nigra, ventral tegmental area or sites 2 mm rostral, caudal or dorsal to the site in the nigra. Withdrawal signs were monitored for 20 min after the intracerebral injection. Naloxone administered into the nigra in morphine-dependent rats produced dose-dependent significant increases in wet dog shakes, irritability to touch, teeth chattering, diarrhea and locomotion, compared to morphine-dependent animals that received injections of saline into the nigra. The injection of naloxone (3 micrograms) into the ventral tegmental area of morphine-dependent animals, produced irritability to touch and diarrhea, compared to morphine-dependent controls that received saline in this region of the brain. Significant differences in withdrawal signs were observed between morphine-dependent animals, that received injections of naloxone (3 micrograms) into the nigra and those that received naloxone (3 micrograms) into the ventral tegmental area or rostral or caudal sites. No differences between the substantia nigra and the dorsal sites were observed. However, withdrawal symptoms were produced by injections of naloxone into the substantia nigra and ventral tegmental area, even when the guide cannulae were angled to avoid penetration of sites dorsal to these regions of the brain. Naloxone, injected into the ventral midbrain of non-dependent animals, produced no signs of withdrawal. These studies suggest that the ventral midbrain mediates physical dependence on morphine.
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Baumeister AA,Anticich TG,Hebert G,Hawkins MF,Nagy Mdoi
10.1016/0028-3908(89)90204-9subject
Has Abstractpub_date
1989-11-01 00:00:00pages
1151-7issue
11eissn
0028-3908issn
1873-7064journal_volume
28pub_type
杂志文章abstract：:Ethanol addiction is a serious public health problem that still needs more effective pharmacological treatment. A key factor in the development and maintenance of this disease is the advent of neuroadaptations in the mesocorticolimbic brain pathway upon chronic ethanol abuse. In general, these neuroadaptations are mal...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2016.07.009
更新日期：2016-11-01 00:00:00
abstract：:Anandamide and 2-arachidonoyl glycerol, referred to as endocannabinoids (eCBs), are the endogenous agonists for the cannabinoid receptor type 1 (CB1). Several pieces of evidence support a role for eCBs in the attenuation of anxiety-related behaviours, although the precise mechanism has remained uncertain. The fatty ac...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2007.07.005
更新日期：2008-01-01 00:00:00
abstract：:Long-term L-DOPA treatment for Parkinson's disease (PD) is limited by motor complications, particularly L-DOPA-induced dyskinesia (LID). A therapy with the ability to ameliorate LID without reducing anti-parkinsonian benefit would be of great value. We assessed the ability of TC-8831, an agonist at nicotinic acetylcho...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2013.06.005
更新日期：2013-10-01 00:00:00
abstract：:Inhibition in the brain is dominated by the neurotransmitter gamma-aminobutyric acid (GABA); operating through GABA(A) receptors. This form of neural inhibition was presumed to be mediated by synaptic receptors, however recent evidence has highlighted a previously unappreciated role for extrasynaptic GABA(A) receptors...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2008.08.004
更新日期：2009-01-01 00:00:00
abstract：:Cannabidiol (CBD), a non-euphorigenic compound derived from Cannabis, shows promise for improving recovery following cerebral ischemia and has recently been shown effective for the treatment of childhood seizures caused by Dravet and Lennox-Gastaut syndromes. Given evidence for activity to mitigate effects of CNS insu...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2019.107716
更新日期：2019-11-01 00:00:00
abstract：:The effect of acute or repeated treatment with the antidepressant clomipramine (CIM) on N-methyl-D-aspartate (NMDA) evoked changes in extracellular 5-hydroxytryptamine (5-HT) in the raphe nuclei and frontal cortex of the same rat has been studied using microdialysis. Acute injection of CIM (10 or 20 mg/kg) caused an i...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(01)00078-8
更新日期：2001-09-01 00:00:00
abstract：:The posterior hypothalamic receptors involved in the cardiovascular responses to electrical stimulation of the rostral ventrolateral medulla were investigated in urethane-anaesthetized rats. Electrical stimulation of the rostral ventrolateral medulla produced a significant increase in systolic blood pressure. This res...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(91)90183-c
更新日期：1991-07-01 00:00:00
abstract：:Effects of cations on binding of 0.1-10 nM 3H-ADTN to calf caudate membranes included decreased apparent Bmax by [Na+] greater than or equal to 100 mM, little effect on Kd or on affinity of other dopamine (DA) agonists (DA and apomorphine), decreased slopes of inhibition curves produced by agonists, but increased affi...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(87)90159-6
更新日期：1987-06-01 00:00:00
abstract：:Human genetic variation in the gene CACNA1C, which codes for the alpha-1c subunit of Cav1.2 L-type calcium channels (LTCCs), has been broadly associated with enhanced risk for neuropsychiatric disorders including major depression, bipolar and schizophrenia. Little is known about the specific neural circuits through wh...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.08.033
更新日期：2019-01-01 00:00:00
abstract：:The effects of various benzodiazepine receptor ligands on the GABA autoreceptor have been studied in slices of cerebral cortex of the rat. The GABAA receptor agonist muscimol inhibited the K+-stimulated release of [3H]GABA with a pIC25 of 7.65 +/- 0.11. This effect was antagonised by the GABAA receptor antagonist bicu...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(88)90059-7
更新日期：1988-10-01 00:00:00
abstract：:The aim of the present study was to evaluate functional changes of mGluR5 expression in advanced Alzheimer's disease (AD) using positron emission tomography (PET) with an mGluR5 specific radiotracer ([18F]FPEB) in 5xFAD AD model. Subsequently, in the same animal, mGluR5 expression was quantified by immunoassay techniq...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.02.003
更新日期：2018-05-01 00:00:00
abstract：:Melanopsin-dependent phototransduction in intrinsically photosensitive retinal ganglion cells (ipRGCs) involves a Gq-coupled phospholipase C (PLC) signaling cascade. Acetylcholine, released in the mammalian retina by starburst amacrine cells, can also activate Gq-PLC pathways through certain muscarinic acetylcholine r...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2016.04.001
更新日期：2016-09-01 00:00:00
abstract：:Recent genetic and pharmacological studies have implicated the α3, β4 and α5 subunits of the nicotinic acetylcholine receptor (nAChR) in dependence to nicotine and other abused drugs and nicotine withdrawal. The α3β4* nAChR subtype has been shown to co-assemble with the α5 or β3 nAChR subunits, and is found mainly in ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2013.09.023
更新日期：2014-02-01 00:00:00
abstract：:In the present studies, an attempt was made to elucidate the role of endogenous opioid inputs to the depressor region of the caudal ventrolateral medulla in the tonic regulation of arterial pressure and to examine the subtype(s) of receptor underlying any observed effects by use of receptor-specific antagonists. The d...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(91)90064-i
更新日期：1991-04-01 00:00:00
abstract：:The stable transcription factor ΔFosB is induced in the nucleus accumbens (NAc) by chronic exposure to several drugs of abuse, and transgenic expression of ΔFosB in the striatum enhances the rewarding properties of morphine and cocaine. However, the mechanistic basis for these observations is incompletely understood. ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2011.08.046
更新日期：2011-12-01 00:00:00
abstract：:The properties of central ATP-mediated synaptic currents were studied using whole-cell patch-clamp recording in rat medial habenula slices. Release was shown to be calcium dependent with a Hill coefficient of approximately 2. The voltage dependence of synaptic current amplitudes was approximately linear. Some reductio...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(97)00127-5
更新日期：1997-09-01 00:00:00
abstract：:The effects of high-K, glutamate and glutamate receptor agonists on the efflux of Ca2+ were studied in cultured primary astrocytes, prepared from the brains of newborn rats. An increase in efflux of 45Ca2+ of produced by a large extracellular concentration of K+ was effectively inhibited by verapamil, a blocker of vol...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(90)90123-9
更新日期：1990-08-01 00:00:00
abstract：:Gastrin-releasing peptide (GRP) receptor-expressing (GRPR)+ neurons have a central role in the spinal transmission of itch. Because their fundamental regulatory mechanisms are not yet understood, it is important to determine how such neurons are excited and integrate itch sensation. In this study, we investigated the ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2020.108025
更新日期：2020-06-15 00:00:00
abstract：:Although selective activation of the M1 muscarinic acetylcholine receptor (mAChR) subtype has been shown to improve cognitive function in animal models of neuropsychiatric disorders, recent evidence suggests that enhancing M4 mAChR function can also improve memory performance. Positive allosteric modulators (PAMs) tar...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2017.07.013
更新日期：2018-01-01 00:00:00
abstract：:Mitochondria are essential for neuronal survival and function, and mitochondrial dysfunction plays a critical role in the pathological development of Parkinson's disease (PD). Mitochondrial quality control is known to contribute to the survival of dopaminergic (DA) neurons, with mitophagy being a key regulator of the ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2020.108360
更新日期：2020-10-26 00:00:00
abstract：:Compound FLZ (cFLZ) is a synthetic novel derivative of natural squamosamide. Previous pharmacological study found that cFLZ improved the abnormal behavior and the decrease of dopamine content in striatum in 1-methyl-4-phenyl-1,2,3,6-tetra-hydropyridine (MPTP) model mice. 1-Methyl 4-phenylpyridinium (MPP+) is the activ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2006.08.020
更新日期：2007-02-01 00:00:00
abstract：:The GABA(B) receptor has been shown to consist of a heterodimer of two related 7-transmembrane receptors GABAB-R1 and GABA(B)-R2. These receptors share close homology to the Ca2+-sensing receptor and also to the metabotropic glutamate receptors, which have also been shown to respond to extracellular calcium. We show h...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(99)00119-7
更新日期：1999-11-01 00:00:00
abstract：:Tobacco use is prevalent in the adolescent population. It is a major concern because tobacco is highly addictive and has also been linked to illicit drug use. There is not much research, however, on the interaction between nicotine and other stimulant drugs in animal models of early adolescence. This study examined th...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2003.09.024
更新日期：2004-03-01 00:00:00
abstract：:In the present study, the effects of bilateral injections of the GABAergic receptor agents into the dorsal hippocampal CA1 regions (intra-CA1) on morphine-induced amnesia were examined in morphine sensitized-mice. Pre-training subcutaneous (s.c.) administration of morphine (5 mg/kg) suppressed the learning of a one-tr...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2007.11.004
更新日期：2008-03-01 00:00:00
abstract：:Heterogeneous binding interactions of cerebellar GABA(A) receptors were investigated with GABA agonists and neurosteroids. GABA(A) receptors of rat cerebellum were labelled with [(3)H]ethynylbicycloorthobenzoate (EBOB), a convulsant radioligand. Saturation analysis revealed a homogenous, nanomolar population of [(3)H]...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2005.04.003
更新日期：2005-09-01 00:00:00
abstract：:The heart rate of the anaesthetized rabbit was slowed by electrical stimulation of the hypothalamus with 7-9 sec trains of 250-330 microA pulses, duration 1 msec, frequency 60 Hz. This vagally-mediated cardio-decelerator response was attenuated in a dose-dependent manner after intravenous administration of phenoxybenz...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(83)90258-7
更新日期：1983-01-01 00:00:00
abstract：:Electrophysiology, immunostaining and time lapse imaging techniques were employed to study the mechanism of long-term depression (LTD) induced by DHPG, a specific group I metabotropic glutamate receptor (mGluR) agonist. Experiments were performed in primary hippocampal culture or in the CA1 area of acute rat hippocamp...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(01)00134-4
更新日期：2001-11-01 00:00:00
abstract：:In the present study we examined the effect of MPEP [2-methyl-6-(phenylethynyl)-pyridine] a potent, selective and systemically active metabotropic glutamate receptor (mGluR) type I (subtype mGluR5) antagonist on conditioned morphine reward in mice. In an unbiased version of conditioned place preference (CPP) paradigm,...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(02)00309-x
更新日期：2002-12-01 00:00:00
abstract：:FK1706, a derivative of FK506, is a non-immunosuppressive immunophilin ligand with significant neurotrophic activity mediated via FKBP-52 and the RAS/RAF/MAPK signaling pathway. Here, we tested the effect of FK1706 on painful diabetic neuropathy in rat model of diabetes induced by streptozotocin (STZ). FK1706 ameliora...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2008.07.048
更新日期：2008-12-01 00:00:00
abstract：:Muscarinic acetylcholine receptors (mAChRs) are G proteincoupled receptors (GPCRs) that mediate the metabotropic actions of acetylcholine (ACh). There are five subtypes of mAChR, M1 - M5, which are expressed throughout the central nervous system (CNS) on numerous cell types and represent promising treatment targets fo...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2017.11.018
更新日期：2018-07-01 00:00:00
