Abstract：
:We observed that AP-3, an antagonist of metabotropic glutamate receptors, reduced carbachol-induced hydrolysis of phospholipids in hippocampal slices. This inhibition could be explained in different ways, e.g.: 1) AP-3 acts also as antagonist of muscarinic receptors mediating the hydrolysis of phospholipids induced by carbachol, 2) Carbachol induces the release of glutamate which, by activating metabotropic glutamate receptors, leads to additional hydrolysis of phospholipids. The aim of this work was to test these possibilities. It is shown that AP-3 reduces carbachol-induced hydrolysis of phospholipids in hippocampal slices but not in cerebellar neurons at 10-14 days of culture, when these cells are not able to induce hydrolysis of phospholipids following activation of metabotropic glutamate receptors. It is also shown that carbachol induces a release of [3H]aspartate in hippocampal slices. The results reported suggest that the hydrolysis of phospholipids induced by carbachol in hippocampal slices would have two components. One part would be due to direct activation by carbachol of muscarinic receptors associated to activation of phospholipase C. This part would not be inhibited by AP-3. The second part would be due to subsequent release of glutamate and activation of metabotropic glutamate receptors. This part would be inhibited by AP-3.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Llansola M,Hermenegildo C,Miñana MD,Felipo Vdoi
10.1023/a:1022423415238subject
Has Abstractpub_date
1998-06-01 00:00:00pages
913-8issue
6eissn
0364-3190issn
1573-6903journal_volume
23pub_type
杂志文章abstract：:Cathepsin B (EC 3.4.22.1) was purified 746-fold with a 21% recovery from bovine brain by autolysis, fractional precipitation with acetone, carboxy-methyl-Sephadex chromatography, affinity chromatography on a cystamine containing column and gel filtration chromatography. The purified cathepsin B eluted on gel filtratio...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965209
更新日期：1986-06-01 00:00:00
abstract：:Several epidemiological studies have shown that consumption of large quantities of vegetables especially cruciferous vegetables (Broccoli and Brussels sprouts) can protect against chronic diseases. Sulforaphane, an isothiocynate found in cruciferous vegetables has been demonstrated to have neuroprotective effects in s...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-1965-2
更新日期：2016-10-01 00:00:00
abstract：:Single exposure of adult male rats to low environmental temperature (LET, 12 +/- 0.5 degrees C) for 2 h significantly increased the hypothalamic and striatal GABA levels without affecting those in other regions of brain. The activity of glutamate decarboxylase (GAD) was elevated in hypothalamus (H) and corpus striatum...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00968559
更新日期：1990-08-01 00:00:00
abstract：:Serotonin-synthesizing raphé/parapyramidal neurons (5-HT neurons) may function as sympathetic premotor neurons regulating sympathetic outflow to the cutaneous vascular bed. In the present study a genetically engineered pseudorabies virus (PRV) expressing green fluorescent protein (GFP) was injected into the rat tail. ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-005-9018-2
更新日期：2006-02-01 00:00:00
abstract：:The incorporation of [gamma-32P]ATP into proteins of rat brain polyribosomes was studied in vitro. The effects of cyclic nucleotides, calcium, hemin, ACTH, GTP, and spermine were examined. The incorporation of phosphate into proteins increased with time and phosphatase activity was very low; thus, the extent of phosph...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00973039
更新日期：1984-09-01 00:00:00
abstract：:The three essential amino acids, valine, leucine and isoleucine, constitute the group of branched-chain amino acids (BCAAs). BCAAs are rapidly taken up into the brain parenchyma, where they serve several distinct functions including that as fuel material in brain energy metabolism. As one function of astrocytes is con...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-008-9895-2
更新日期：2009-07-01 00:00:00
abstract：:The effect of optic nerve transsection on proteolytic degradation of axonally transported proteins in the superior colliculus of the rabbit was studied. Proteolysis of labeled proteins was determined in vitro in small pieces of the superior colliculus. Within 2 hours after sectioning the optic nerve there was a decrea...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00973280
更新日期：1988-07-01 00:00:00
abstract：:Alterations in lysosomal proteases have been implicated in many neurodegenerative diseases. The current study demonstrates a concentration-dependent decrease in PC12 cell viability and transient changes in cystatin C (CYSC), cathepsin B (CATB), cathepsin D (CATD) and caspase-3 following exposure to H2O2. Furthermore, ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-007-9338-5
更新日期：2007-09-01 00:00:00
abstract：:Although nitric oxide (NO) plays key signaling roles in the nervous systems, excess NO leads to cell death. In this study, the involvement of p38 mitogen-activated protein kinase (p38 MAPK) and apoptosis signal-regulating kinase-1 (ASK1) in NO-induced cell death was investigated in PC12 cells. NO donor transiently act...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1010917129951
更新日期：2001-05-01 00:00:00
abstract：:Propofol and ketamine may provide certain degree of neuroprotection, but the underlying mechanism remains unclear to date. The cAMP response element-binding protein (CREB) was proposed that its phosphorylation at Ser133 (P-CREB) constituted a convergence point involved in neuroprotection. The purpose of this study was...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-011-0582-3
更新日期：2012-01-01 00:00:00
abstract：:Biotinylated derivatives of tetanus toxin were prepared and isolated by chromatofocusing and ganglioside-affinity chromatography. Biotinylation was monitored by the appearance of a 210,00 dalton complex upon SDS-polyacrylamide gel electrophoresis in the presence of avidin, and by selective binding to an avidin-Sepharo...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00969922
更新日期：1990-04-01 00:00:00
abstract：:Acetate is a two carbon intermediate in metabolism. It is an accepted marker of astrocytic metabolism, and a substrate for production of metabolites such as glutamine, glutamate and GABA. However, anomalies exist in the current explanations of compartmentation and metabolism of acetate. Here, we investigated these ano...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-012-0847-5
更新日期：2012-11-01 00:00:00
abstract：:A very large body of evidence from in vivo studies has been accumulated on a link between the change of energy and cell survival/apoptosis. Using an in vitro ischemia model, we have previously shown that ischemia could induce apoptosis in astrocytes. In this study, we utilized the same in vitro model to investigate ch...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1021691112190
更新日期：2002-12-01 00:00:00
abstract：:We have previously reported that angiotensin receptor blockade reduces reperfusion hemorrhage in a suture occlusion model of stroke, despite increasing matrix metalloproteinase (MMP-9) activity. We hypothesized that candesartan will also decrease hemorrhage associated with delayed (6 h) tissue plasminogen activator (t...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-013-1185-y
更新日期：2013-12-01 00:00:00
abstract：:Caspase activation and apoptotic events may take place in terminal regions far removed from the cell body and contribute to synapse loss in neurodegenerative diseases. For examination of events in terminals, we have developed a cell-free assay using quantitative flow cytometric analysis (fluorescence-activated cell so...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1019840417796
更新日期：2002-06-01 00:00:00
abstract：:Ecto-nucleotidases play a pivotal role in terminating the signalling via ATP and in producing adenosine, a neuromodulator in the nervous system. We have now investigated the pattern of adenosine formation with different concentrations of extracellular ATP in rat hippocampal nerve terminals. It was found that adenosine...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1012392719601
更新日期：2001-09-01 00:00:00
abstract：:The effects of neuroleptic treatments on dopamine transporters and on dopamine receptors was investigated in the forebrain of adult rats treated for 21 days with either haloperidol, clozapine or saline. The dopamine D1 receptors, labeled with [3H]SCH23390, increased in nucleus accumbens, latero-dorsal rostral neostria...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1022405621365
更新日期：1998-01-01 00:00:00
abstract：:Neonatal hypoxia/ischemia (HI) is the most common cause of developmental neurological, cognitive and behavioral deficits in children, with hyperoxia (HHI) treatment being a clinical therapy for newborn resuscitation. Although cerebral edema is a common outcome after HI, the mechanisms leading to excessive fluid accumu...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-010-0308-y
更新日期：2010-12-01 00:00:00
abstract：:Exercise has been regarded as an effective rehabilitation strategy to facilitate motor and cognitive functional recovery after stroke, even though the complex effects associated with exercise-induced repair of cerebral ischemic injury are not fully elucidated. The enhancement of angiogenesis and neurogenesis, and the ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-019-02728-1
更新日期：2019-04-01 00:00:00
abstract：:The protein composition of myelin isolated from the CNS of four different fish species (trout, goldfish), eel, Tilapia) was analysed by SDS-polyacrylamide gel electrophoresis and compared with that of pig and rat brain. Thereby the following features were found typical to the myelin of fish: (1) a basic protein of par...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965193
更新日期：1983-08-01 00:00:00
abstract：:Endogenous and xenobiotic sulphur-containing convulsant and non-convulsant compounds containing structural moieties of, or bearing a structural resemblance to, GABA and homocysteine were tested in binding studies for their potency in displacing the GABA-mimetic [3H]muscimol from specific, high-affinity sites (Kd = 3.6...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00971006
更新日期：1987-07-01 00:00:00
abstract：:Methylphenidate is commonly used for the treatment of attention deficit/hyperactivity disorder. There are still few works regarding the effects of methylphenidate on brain energy metabolism. Thus, in the present study we evaluated the effect of chronic administration of methylphenidate on the activities of mitochondri...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-010-0229-9
更新日期：2010-11-01 00:00:00
abstract：:Recent studies have demonstrated a scrutinized association of diabetes mellitus with depressive symptoms and major depression. Glycogen synthase kinase-3 (GSK-3) is a protein kinase enzyme constitutively active in non-stimulated cells and in multiple signalings. Independent lines of research provide a converging evide...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-015-1670-6
更新日期：2015-09-01 00:00:00
abstract：:Exposure to Hg2+ below 10 micrometer destroys synaptosomal membrane-associated sialidase of bovine brain in situ. Inhibition by Cu2+ occurs only at relatively higher concentrations, and is demonstrable after the synaptosomal membrane preparation has been presaturated with Cu2+ . Pb2+ does not inhibit enzymatic activit...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964363
更新日期：1978-02-01 00:00:00
abstract：:The expression and localization of syntaxin isoforms 1A and 1B in adrenergic and noradrenergic chromaffin cells were examined by both immunoblot analysis and confocal immunofluorescence microscopy. Syntaxin 1A was found in higher levels in noradrenergic cells, whereas syntaxin 1B was similarly expressed in most noradr...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1025658005937
更新日期：2003-10-01 00:00:00
abstract：:Glioblastoma is one of the most frequent and aggressive primary tumor of glial brain tumors. Long non-coding RNA Prostate cancer-associated ncRNA transcript 6 (PCAT6) has been identified to influence the progression of many cancers, but its expression and functions in glioblastoma remain unclear. In this study, we int...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-020-03138-4
更新日期：2020-12-01 00:00:00
abstract：:Niemann-Pick disease type C (NPC) is a neurovisceral disorder characterized by lysosomal sequestration of endocytosed LDL-cholesterol, premature and abnormal enrichment of cholesterol in trans Golgi cisternae and accompanying anomalies in intracellular sterol trafficking. In addition to cholesterol, the NPC lesion has...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1023/a:1022575511354
更新日期：1999-04-01 00:00:00
abstract：:Acute tryptophan depletion (ATD) is extensively used to investigate the role of central serotonin (5-HT). However, several studies reported that ATD had no significant effect on central 5-HT concentration and some ATD-induced changes was independent of 5-HT in the rodent brain. Therefore, the potential mechanism of AT...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-013-1177-y
更新日期：2013-12-01 00:00:00
abstract：:Abnormally high levels of iron are observed in the brain of patients suffering from neurodegenerative disorders. The mechanisms involved in iron accumulation in neurodegenerative disorders remain poorly understood. In the present study we investigated the effects of aging and neonatal iron overload on the mRNA express...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-009-0100-z
更新日期：2010-04-01 00:00:00
abstract：:The cellular uptake of the GABA-transaminase inhibitors gamma-vinyl GABA (GVG) and gamma-acetylenic GABA (GAG) was studied in cultured neurons and astrocytes. By the use of the individual enantiomers R- and S-GVG and R- and S-GAG it could be shown that in both cell types only the S-enantiomers could be actively transp...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965769
更新日期：1986-11-01 00:00:00
