Abstract：
:Glutamate receptors play an essential role in fear-related learning and memory. The present study was designed to assess the role of the group I metabotropic glutamate receptor (mGluR) subtype 5 in the acquisition and retrieval of conditioned fear in rats. The selective mGluR5 antagonist 2-methyl-6-(phenylethynyl)-pyridine (MPEP) was applied systemically (0.0, 0.3, 3.0, 30.0 mg/kg per os) 60 min before the acquisition training and before the expression of conditioned fear, respectively, in the fear-potentiated startle paradigm. MPEP dose-dependently blocked the acquisition of fear. This effect was not due to state-dependent learning. MPEP also prevented the expression of fear at a dose of 30.0 mg/kg. As a positive control for these effects, we showed that the benzodiazepine anxiolytic compound diazepam (1.25 mg/kg intraperitoneally) also blocked acquisition and expression of fear potentiated startle. MPEP did not affect the baseline startle magnitude, short-term habituation of startle, sensitisation of startle by footshocks or prepulse inhibition of startle. These data indicate a crucial role for mGluR5 in the regulation of fear conditioning. In the highest dose MPEP might exert anxiolytic properties.
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Schulz B,Fendt M,Gasparini F,Lingenhöhl K,Kuhn R,Koch Mdoi
10.1016/s0028-3908(01)00036-3subject
Has Abstractpub_date
2001-07-01 00:00:00pages
1-7issue
1eissn
0028-3908issn
1873-7064pii
S0028390801000363journal_volume
41pub_type
杂志文章abstract：:Dopamine (DA) neurotransmission, particularly the ventral tegmental area-nucleus accumbens (VTA-NAcc) projection, underlies reward and aversion processing, and deficient DA function could underlie motivational impairments in psychiatric disorders. 6-hydroxydopamine (6-OHDA) injection is an established method for chron...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2016.03.048
更新日期：2016-10-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2009.04.017
更新日期：2009-08-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(98)00135-x
更新日期：1998-10-01 00:00:00
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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
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2016.11.023
更新日期：2017-03-01 00:00:00
abstract：:Peristaltic reflex activity in the guinea-pig isolated ileum was elicited by slow intraluminal infusion of Tyrode solution. The reflex was abolished by the ganglionic blocking drug hexamethonium. However, in more than half of the preparations, the peristaltic reflex was restored by the opioid antagonist naloxone. Hexa...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(87)90018-9
更新日期：1987-11-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(85)90031-0
更新日期：1985-05-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(88)90048-2
更新日期：1988-03-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(02)00090-4
更新日期：2002-08-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2020.108332
更新日期：2020-12-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2011.05.013
更新日期：2011-09-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2007.07.014
更新日期：2007-10-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2007.05.019
更新日期：2007-09-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(00)00103-9
更新日期：2001-01-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.06.002
更新日期：2018-08-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2016.09.010
更新日期：2016-12-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(88)90164-5
更新日期：1988-02-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(83)90125-9
更新日期：1983-07-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章,评审
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更新日期：2008-11-01 00:00:00
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pub_type： 杂志文章
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更新日期：2000-04-27 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2015.02.007
更新日期：2015-06-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(91)90022-4
更新日期：1991-12-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(91)90203-n
更新日期：1991-02-01 00:00:00
abstract：:Cyclosporine, a calcineurin inhibitor, significantly enhances spontaneous acetylcholine release after a brief tetanus and potentiates the effect of phorbol 12,13-dibutyrate. Both actions are prevented by the protein kinase C inhibitor, bisindolylmaleimide iodide. Protein kinase C and calcineurin thus play important ro...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(98)00178-6
更新日期：1999-01-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2003.09.011
更新日期：2004-03-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2014.01.020
更新日期：2014-04-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(85)90169-8
更新日期：1985-02-01 00:00:00
abstract：:Nicotine stimulates the secretion of catecholamines from sympathetic nerve endings and adrenal medulla by acting on peripheral nicotinic cholinergic receptors. Nicotine is also a potent stimulant in the central nervous system but the significance of nicotinic receptors in brain in mediating cardiovascular and sympatho...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(90)90071-x
更新日期：1990-06-01 00:00:00
abstract：:Recent studies indicated that epigenetic modification, especially DNA methylation, play an important role in the persistence of addiction-related memory. 5-aza-2-deoxycytidine (5-aza), an inhibitor of DNA methyltransferases, was approved for clinical treatment. However, it is not clear whether 5-aza is involved in opi...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2014.08.005
更新日期：2014-11-01 00:00:00
abstract：:The integrity of dynamic actin structures is coupled to a variety of neurological processes. Actin-binding proteins play a critical role in regulating actin structure dynamics. A link between actin-binding proteins and receptor interacting scaffolding proteins may provide a conduit for transmitting signaling events to...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2005.05.022
更新日期：2005-12-01 00:00:00
