Abstract：
:Rats learning the Morris water maze exhibit hippocampal changes in synaptic morphology and physiology that manifest as altered synaptic efficacy. Learning requires structural changes in the synapse, and multiple cell adhesion molecules appear to participate. The activity of these cell adhesion molecules is, in large part, dependent on their interaction with the extracellular matrix (ECM). Given that matrix metalloproteinases (MMPs) are responsible for transient alterations in the ECM, we predicted that MMP function is critical for hippocampal-dependent learning. In support of this, it was observed that hippocampal MMP-3 and -9 increased transiently during water maze acquisition as assessed by western blotting and mRNA analysis. The ability of the NMDA receptor channel blocker MK801 to attenuate these changes indicated that the transient MMP changes were in large part dependent upon NMDA receptor activation. Furthermore, inhibition of MMP activity with MMP-3 and -9 antisense oligonucleotides and/or MMP inhibitor FN-439 altered long-term potentiation and prevented acquisition in the Morris water maze. The learning-dependent MMP alterations were shown to modify the stability of the actin-binding protein cortactin, which plays an essential role in regulating the dendritic cytoskeleton and synaptic efficiency. Together these results indicate that changes in MMP function are critical to synaptic plasticity and hippocampal-dependent learning.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Meighan SE,Meighan PC,Choudhury P,Davis CJ,Olson ML,Zornes PA,Wright JW,Harding JWdoi
10.1111/j.1471-4159.2005.03565.xkeywords:
subject
Has Abstractpub_date
2006-03-01 00:00:00pages
1227-41issue
5eissn
0022-3042issn
1471-4159pii
JNC3565journal_volume
96pub_type
杂志文章abstract：:N alpha-Acyl amino acid releasing enzyme (NAARE), an enzyme cleaving acetylMet-Ala at the Met-Ala bond was purified from rat brain cytosol to apparent homogeneity by salt precipitation, gel filtration, and several steps of ion exchange. Levels of NAARE exceeded acylase measured with acetylmethionine in all brain regio...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1983.tb13670.x
更新日期：1983-07-01 00:00:00
abstract：:This paper describes a new, sensitive assay for dopamine-beta-hydroxylase (DBH) activity in human cerebrospinal fluid (CSF), serum and brain tissues by high performance liquid chromatography (HPLC) with electrochemical detection (ED). Dopamine (DA) was used as a substrate and was incubated under optimal conditions. No...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1981.tb00454.x
更新日期：1981-08-01 00:00:00
abstract：:The ontogeny of chick brain and heart ventricle calcium antagonist binding sites was determined, using [3H]nitrendipine ([3H]NDP), as the ligand. The binding of [3H]NDP to adult heart and brain was kinetically very similar, with the former displaying a KD of 0.28 +/- 0.02 nM and a Bmax of 138 +/- 17 fmol/mg protein, a...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1984.tb02792.x
更新日期：1984-05-01 00:00:00
abstract：:The incorporation of radioactive phosphate into proteins of both normal and regenerating ganglia of the sympathetic nervous system of the rat is reported. The incorporation reactions were carried out in vitro by incubating homogenates of excised ganglia with [gamma-32P]ATP under various conditions. It was found that i...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1989.tb07247.x
更新日期：1989-06-01 00:00:00
abstract：:In vivo microdialysis in C57BL/6J (B6) mouse was used to test the hypothesis that activating adenosine A(2A) receptors in the pontine reticular formation (PRF) increases acetylcholine (ACh) release and rapid eye movement (REM) sleep. Eight concentrations of the adenosine A(2A) receptor agonist 2-p-(2-carboxyethyl)phen...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2006.03700.x
更新日期：2006-03-01 00:00:00
abstract：:Postmortem changes in catecholamines, indoleamines, and their metabolites in rat brain regions following decapitation were determined by LCEC. In the three regions studied neurotransmitter levels declined after decapitation, whereas the metabolite levels increased. Microwave irradiation at 10 kW rapidly inactivated br...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1985.tb04083.x
更新日期：1985-09-01 00:00:00
abstract：:Tau pathologically aggregates in Alzheimer's disease, and evidence suggests that reducing tau expression may be safe and beneficial for the prevention or treatment of this disease. We sought to examine the role of the 3'-untranslated region (3'-UTR) of human tau mRNA in regulating tau expression. Tau expresses two 3'-...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.12437
更新日期：2013-12-01 00:00:00
abstract：:cAMP is known to regulate neurotransmitter release via protein kinase A (PKA)-dependent and/or PKA-independent signal transduction pathways at a variety of central synapses. Here we report the cAMP-mediated long-lasting enhancement of glycinergic transmission in developing rat spinal substantia gelatinosa neurons. For...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2009.06275.x
更新日期：2009-09-01 00:00:00
abstract：:The intracerebroventricular injection of pyridoxal phosphate (PLP, 0.125-1.25 mumol/rat) causes epileptic seizures (4 min leads to 1 min) that are preventable or reversible by GABA (1 mumol/rat), by muscimol (0.025 mumol/rat), or by diazepam (1.75 mumol/rat). At the peak of PLP-induced convulsions, the activities of G...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1981.tb02401.x
更新日期：1981-01-01 00:00:00
abstract：:The effect of the neuropeptide substance P on the binding of the cholinergic ligands to the nicotinic acetylcholine receptor of Torpedo electroplaque membranes was examined at a physiological concentration of NaCl (150 mM). Substance P had no effect on the initial rate of 125I-alpha-bungarotoxin binding at concentrati...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1993.tb03510.x
更新日期：1993-06-01 00:00:00
abstract：:We have investigated the transport characteristics of dehydroepiandrosterone sulfate (DHEAS), a neuroactive steroid, at the blood-brain barrier (BBB) in a series of functional in vivo and in vitro studies. The apparent BBB efflux rate constant of [(3)H]DHEAS evaluated by the brain efflux index method was 2.68 x 10(-2)...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2000.0751907.x
更新日期：2000-11-01 00:00:00
abstract：:To determine whether prolonged nicotine exposure persistently inactivates rat alpha4beta2 nicotinic receptors expressed in Xenopus oocytes, we measured the voltage-clamped alpha4beta2 response to acetylcholine (ACh) before and 24 h after, 1-h or 12-h incubations in 10 microm nicotine. A 12-h incubation in 10 microm ni...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2003.01578.x
更新日期：2003-02-01 00:00:00
abstract：:The intraaxonal transport of phospholipids in regenerating hypoglossal nerve of the rabbit was investigated by administration of labeled lipid precursors into the medulla oblongata. At various time intervals after crushing the left hypoglossal nerve at the level of the digastric muscle, a mixture of 60 mu Ci of [2-3H]...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1983.tb12648.x
更新日期：1983-01-01 00:00:00
abstract：:It has been suggested that disturbances during neurodevelopment may play a crucial role in the etiology of schizophrenia (SZ). This premise is supported by brain imaging, epidemiological, and pathological studies as well as the discovery of susceptibility genes for SZ that appear to be implicated in development of the...
journal_title：Journal of neurochemistry
pub_type： 杂志文章,评审
doi：10.1111/j.1471-4159.2007.04628.x
更新日期：2007-08-01 00:00:00
abstract：:Imprinting in chicks is a form of juvenile learning that has been used to study the basic cellular mechanisms of learning and memory. The forebrain area mediorostral neostriatum/hyperstriatum ventrale (MNH) is a center for acoustic imprinting. Electrophysiological and pharmacological behavioral studies in the MNH have...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1996.66031167.x
更新日期：1996-03-01 00:00:00
abstract：:This laboratory has previously demonstrated that the mu-selective opiate receptor agonist sufentanil can produce a naloxone-reversible increase or decrease in the stimulated formation of cyclic AMP (cAMP) in the myenteric plexus, depending on the concentration of opioid used. On the basis of these results, it was sugg...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1995.64031102.x
更新日期：1995-03-01 00:00:00
abstract：:The simple, freshwater polyp Hydra is often used as a model to study development in cnidarians. Recently, a neuropeptide, < Glu-Gln-Pro-Gly-Leu-Trp-NH2, has been isolated from sea anemones that induces metamorphosis in a hydroid planula larva to become a polyp. Here, we have cloned a preprohormone from Hydra magnipapi...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1997.68031319.x
更新日期：1997-03-01 00:00:00
abstract：:Exposure of primary astrocyte cultures to isosmotic ethanol from 10-100 mM led to both swelling of the cells and release of [3H]taurine and D-[3H]aspartate. Exposure to hyperosmotic ethanol, in the same concentration range, caused neither swelling nor release. Release was inhibited by the anion transport blocker L-644...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1993.tb13391.x
更新日期：1993-05-01 00:00:00
abstract：:In this editorial, we highlight the recent work of Dorninger et al. that demonstrates a reduction in plasmalogens in the motor end plate is associated with a reduction in motor end plate function. This reduction in function is illuminated in reduced muscle function in these mice, corresponding with the reduction in ac...
journal_title：Journal of neurochemistry
pub_type： 评论,社论
doi：10.1111/jnc.14156
更新日期：2017-12-01 00:00:00
abstract：:There is extensive experimental evidence indicating a crucial role for glutamate in epileptogenesis and epileptic activity. The glial glutamate transporters GLT1 and GLAST are proposed to account for the majority of extracellular glutamate re-uptake. In the present study, polyclonal antibodies specific to GLT1 and GLA...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2001.00612.x
更新日期：2001-11-01 00:00:00
abstract：:Mouse monoclonal B-50 antibodies (Mabs) were screened to select a Mab that may interfere with suggested functions of B-50 (GAP-43), such as involvement in neurotransmitter release. Because the Mab NM2 reacted with peptide fragments of rat B-50 containing the unique protein kinase C (PKC) phosphorylation site at serine...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.62030881.x
更新日期：1994-03-01 00:00:00
abstract：:We investigated the mechanism by which rat retina conserves docosahexaenoic acid during essential fatty acid deficiency. Weanling female albino rats were fed diets containing either 10% by weight hydrogenated coconut oil, safflower oil, or linseed oil for 15 weeks. Plasma and rod outer segment (ROS) membranes were pre...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1991.tb06369.x
更新日期：1991-11-01 00:00:00
abstract：:K-252b is a kinase inhibitor structurally related to K-252a, which is known to abolish selectively the effects of nerve growth factor (NGF) on PC12 cells and PNS neurons. We tested whether K-252b, K-252a, and staurosporine, another related compound, are effective and selective inhibitors of NGF actions on CNS neurons....
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1991.tb08243.x
更新日期：1991-09-01 00:00:00
abstract：:Serotonin-1A (5-HT(1A) receptors in the dorsal raphe nucleus (DRN) function as somatodendritic autoreceptors, and therefore play a critical role in controlling serotonergic cell firing and serotonergic neurotransmission. We hypothesized that a decrease in the capacity of 5-HT(1A) receptors to activate G proteins was a...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2007.05201.x
更新日期：2008-05-01 00:00:00
abstract：:NNC 01-0012, a second-generation benzazepine compound, pharmacologically differentiates multiple vertebrate D1 receptor subtypes (D1A, D1B, D1C, and D1D) and displays high selectivity and affinity for dopamine D1C receptors. Functionally, whereas NNC 01-0012 acts as a full or poor antagonist at D1C and D1A receptor-me...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1998.71062593.x
更新日期：1998-12-01 00:00:00
abstract：:Two biochemical strategies using nick translation-type of incubation and terminal tranferase-catalyzed reaction were used to assess single-(SSB) and double-strand (DSB) breaks in DNA of permeabilized neurons isolated from young, adult, and old rat cerebral cortex. Both SSBs and DSBs accumulate with age. On prior treat...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1996.67041559.x
更新日期：1996-10-01 00:00:00
abstract：:Nitric oxide (NO) has been implicated in both the pathogenesis of and protection from NMDA receptor-mediated neuronal injury. This apparent paradox has been attributed to alternate redox states of nitrogen monoxide, whereby, depending on the redox milieu, nitrogen monoxide can be neuroprotective via nitrosation chemis...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1999.0721843.x
更新日期：1999-05-01 00:00:00
abstract：:We investigated the role of Ca(2+)-dependent protein kinases in the regulation of astrocytic cell volume. Calmodulin (CaM) antagonists were used to inhibit CaM and thus Ca2+/CaM-dependent protein kinase. The effect of these inhibitors as well as activators and inhibitors of protein kinase C (PKC) on astrocytic volume ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1992.tb10064.x
更新日期：1992-05-01 00:00:00
abstract：:To identify the transductional mechanisms responsible for the neuroprotective effect of nitric oxide (NO) during ischemic preconditioning (IPC), we investigated the effects of this gaseous mediator on mitochondrial Mn-superoxide dismutase (Mn-SOD) expression and activity. In addition, the possible involvement of Ras/e...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2007.04845.x
更新日期：2007-11-01 00:00:00
abstract：:In adult New Zealand white rabbits, the effects of food deprivation and of massive elevations of plasma uridine or thymidine concentrations on CSF and plasma nucleoside and oxypurine concentrations were studied. Nucleoside and oxypurine levels were determined by high performance liquid chromatography using unequivocal...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1984.tb12751.x
更新日期：1984-06-01 00:00:00
