Abstract：
:Parecoxib is a recently described novel COX-2 inhibitor whose functional significance and neuroprotective mechanisms remain elusive. Therefore, in this study, we aimed to investigate whether delayed administration of parecoxib inhibited mitochondria-mediated neuronal apoptosis induced by ischemic reperfusion injury via phosphorylating Akt and its downstream target protein, glycogen synthase kinase 3β (GSK-3β). Adult male Sprague-Dawley rats were administered parecoxib (10 or 30 mg kg(-1), IP) or isotonic saline twice a day starting 24 h after middle cerebral artery occlusion (MCAO) for three consecutive days. Cerebral infarct volume, apoptotic neuron, caspase-3 immunoreactivity and the protein expression of p-Akt, p-GSK-3β and Cytochrome C in cerebral ischemic cortex were evaluated at 96 h after reperfusion. Parecoxib significantly diminished infarct volume and attenuated neuron apoptosis in a dose-independent manner, compared with MCAO group alone. Increased p-Akt and p-GSK-3β was observed in the ischemic penumbra of parecoxib group after stroke. Moreover, parecoxib also reduced the release of Cytochrome C from mitochondrial into cytosol and attenuated the caspase-3 immunoreactivity in the penumbra. Taken together, these results suggested that parecoxib ameliorated postischemic mitochondria-mediated neuronal apoptosis induced by focal cerebral ischemia in rats and this neuroprotective potential is involved in phosphorylation of Akt and GSK-3β.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Ye Z,Wang N,Xia P,Wang E,Yuan Y,Guo Qdoi
10.1007/s11064-011-0615-ysubject
Has Abstractpub_date
2012-02-01 00:00:00pages
321-9issue
2eissn
0364-3190issn
1573-6903journal_volume
37pub_type
杂志文章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...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1022423415238
更新日期：1998-06-01 00:00:00
abstract：:Neuropeptides are derived from large and inactive proteins which require endoproteolytic processing for the biosynthesis of the bioactive peptides. The maturation of pro-neuropeptide to neuropeptide is believed to be performed by ortholog pro-protein convertase EGL-3 in Caenorhabditis elegans (C. elegans). Furthermore...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-018-2636-2
更新日期：2018-11-01 00:00:00
abstract：:The study examined (a) whether there is sex difference in spinal cord and plasma oxidative stress profiles in Dark Agouti rats immunised for experimental autoimmune encephalomyelitis (EAE), the principal experimental model of multiple sclerosis, and (b) whether there is correlation between the oxidative stress in spin...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-2094-7
更新日期：2017-02-01 00:00:00
abstract：:GABAA-receptors were localized in explant cultures of rat cerebellum and in dissociated primary cultures of rat cerebellar granule cells and rat cerebellar astrocytes using the monoclonal antibody bd-17 directed against the beta-subunit of the GABAA/benzodiazepine/chloride channel complex. At the light microscope leve...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966097
更新日期：1991-03-01 00:00:00
abstract：:Myelinated axons were isolated by flotation from bovine pons, middle cerebellar peduncle, cervical spinal cord and three regions of the subcortical white matter. The myelinated axons were osmotically and mechanically shocked, followed by fractionation on a linear 15% sucrose to 45% sucrose density gradient. Axolemma-e...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF01268880
更新日期：1988-05-01 00:00:00
abstract：:The action of electroacupuncture (EA) may be similar to analgesia by electrode stimulation or transcutaneous nerve stimulation. Since EA may directly stimulate nerve activity or indirectly enhance the release of opiate peptides and other neurotransmitter substances, we have used (Na+ + K+)-ATPase as a model to study t...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964513
更新日期：1984-05-01 00:00:00
abstract：:Antipsychotics represent high affinity for sigma receptors and sigma-like drugs often have the psychotomimetic properties. Besides, the receptors are unevenly distributed in human brain. These findings suggest that sigma receptors might be involved in the pathophysiology of schizophrenia. Sigma receptors in rat and hu...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966825
更新日期：1992-10-01 00:00:00
abstract：:Clinical studies have demonstrated that decreased adiponectin is associated with the development of Type 2 diabetes mellitus (T2DM) and Alzheimer's disease (AD). We focused on determining the neuroprotective effect offered by adiponectin against streptozotocin-induced brain damage in ICV-STZ rat model. We found that a...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-017-2426-2
更新日期：2018-02-01 00:00:00
abstract：:In human pathology little is known about the activating enzymes for fatty acids of different carbon chain length. In order to have a better insight into disorders of lipid metabolism in human skeletal muscle, we studied the distribution of acyl-CoA synthetases in muscular subcellular fractions. We find that in muscle ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964696
更新日期：1983-05-01 00:00:00
abstract：:The presynaptic dopamine (DA) D2 receptor-mediated regulation of ATP-sensitive potassium (K+ATP) channels was examined in slices of the rat caudate-putamen. When slices were incubated with the specific D2 receptor antagonist (-)-sulpiride (SLP), a concentration-dependent increase of extracellular DA release was observ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1026620316090
更新日期：2000-12-01 00:00:00
abstract：:Mutations in genes for Alzheimer's disease (AD) result in a modulating of gene expressions in the brains of patients with AD. The aim of this study was to identify genes whose expression is modulated due to the over-expression of human mutant presenilin-2 (N141I) (hPS2m) in transgenic mice, which has previously been p...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-005-6787-6
更新日期：2005-08-01 00:00:00
abstract：:Exercise increases both the consumption of oxygen and the production of reactive species in biological tissues, and this is counterbalanced by antioxidant adaptations to regular physical training. When the intensity of exercise fluctuates between mild and moderate, it improves the status of reduction-oxidation balance...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-014-1339-6
更新日期：2014-08-01 00:00:00
abstract：:Heme oxygenase-1 (HO-1) plays a crucial role in oxidative stress processes, apoptosis and cell differentiation. Further, some proteins related to cell cycle including cyclins and p21 are important markers of astrocyte cultures. Aim of investigation was to study the effects of cholinergic precursors (choline, CDP-choli...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-012-0873-3
更新日期：2012-12-01 00:00:00
abstract：:The concentration of vitamin E (alpha-tocopherol) was measured in samples of cortex from patients with Alzheimer's disease (AD), fetuses with Down's syndrome (DS), and also in a group of centenarians. The mean tocopherol concentrations in the two patient groups did not differ significantly from appropriate controls. W...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965511
更新日期：1989-12-01 00:00:00
abstract：:Harpagophytum procumbens, popularly known as devil's claw, is a plant commonly used in the treatment of diseases of inflammatory origin. The anti-inflammatory effects of H. procumbens have been studied; however, the mechanism of action is not elucidated. It is known that excess of reactive oxygen and nitrogen species ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-013-1133-x
更新日期：2013-11-01 00:00:00
abstract：:A panel of mouse monoclonal antibodies to rat and human myelin-associated glycoprotein (MAG) was developed. Normal mice were unresponsive to rat MAG, and successful immunization with rat MAG was only achieved in autoimmune NZB mice. By contrast, all strains of mice were responsive to human MAG. The monoclonal antibodi...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964654
更新日期：1985-04-01 00:00:00
abstract：:The significant increase of free calcium concentration ([Ca2+]i) was found in rat cerebral cortex synaptosomes and hippocampal crude synaptosomal fraction after their exposure to glutamate. But no change of [Ca2+]i was revealed in cerebellar synaptosomes, the slight increase of [Ca2+]i in striatal synaptosomes was not...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1020752101736
更新日期：1999-09-01 00:00:00
abstract：:Metabotropic glutamate receptors (mGluR) play a role in synaptic transmission, neuronal modulation and plasticity but their action in epileptic activity is still controversial. On the other hand adenosine acts as a neuromodulator with endogenous anticonvulsive properties. Since cerebellum from epileptic patients has s...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-006-9275-8
更新日期：2007-07-01 00:00:00
abstract：:Several previous studies utilizing selective pharmacological antagonists have demonstrated that type 5 metabotropic glutamate receptors (mGluR5) are potential therapeutic targets for the treatment of numerous disorders of the central nervous system, but the role of mGluR5 activation in traumatic brain injury (TBI) is ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-011-0691-z
更新日期：2012-05-01 00:00:00
abstract：:Turnover rate of individual molecular species of sphingomyelin of adult rat brain myelin and microsomal membranes was determined after an intracerebral injection of 100 microCi of [C3H3]choline. Myelin and microsomal membrane sphingomyelins were isolated from the rest of the lipids. The individual molecular species of...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964414
更新日期：1981-10-01 00:00:00
abstract：:Nerve growth factor (NGF) has been isolated from human placental tissue. Using the chicken embryo dorsal root ganglia assay, we determined levels of NGF activity for the amnion, placental cotyledons, cord serum, fetal serum, and maternal serum. The highest levels of NGF activity were measured in placental cotyledons. ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964058
更新日期：1978-04-01 00:00:00
abstract：:Acrylamide, a prototype neurotoxin, alters neurofilament protein (NF) gene expression in rat brain. Levels of mRNA coding for neurofilament protein subunits NF-L, NF-M, and NF-H have been determined by Northern blot analysis using 32P-labeled cDNA probes. Acrylamide given acutely (100 mg/kg, single intraperitoneal inj...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00967449
更新日期：1994-07-01 00:00:00
abstract：:We have adopted the PC12 cell line as in vitro cell model for studying Dp71 function in neuronal cells. These cells express a cytoplasmic (Dp71f) and a nuclear (Dp71d) isoform of Dp71 as well as various dystrophin-associated proteins (DAPs). In this study, we revealed by confocal microscopy analysis and Western blotti...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-009-0064-z
更新日期：2010-03-01 00:00:00
abstract：:Alcohol abuse affects several neurological pathways and causes significant alterations in the brain. Abstention from alcohol causes only a marginal decrease in oxidative stress and neuro inflammation. Our previous studies had shown that an active metabolite of vitamin A, all trans retinoic acid (ATRA), ameliorates alc...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-018-2595-7
更新日期：2018-09-01 00:00:00
abstract：:The decline in neuronal function during aging may result from increases in extracellular glutamate (Glu), Glu-induced neurotoxicity, and altered mitochondrial metabolism. To study metabolic responses to persistently high levels of Glu at synapses during aging, we used transgenic (Tg) mice that over-express the enzyme ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-014-1239-9
更新日期：2014-01-01 00:00:00
abstract：:Ketogenic diet (KD) has been shown to be beneficial in a range of neurological disorders, with ketone metabolite β-hydroxybutyrate (βOHB) reported to block the nucleotide oligomerization domain-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome in bone marrow-derived macrophages. In this study, we sh...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-020-03156-2
更新日期：2020-10-27 00:00:00
abstract：:The effect of ageing and the relationships between the catalytic properties of enzymes linked to Krebs' cycle, electron transfer chain, glutamate and aminoacid metabolism of cerebral cortex, a functional area very sensitive to both age and ischemia, were studied on mitochondria of adult and aged rats, after complete i...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-009-0004-y
更新日期：2009-12-01 00:00:00
abstract：:It has been reported that central dopaminergic system is implicated in the mechanism underlying general anesthesia. Whether dopamine (DA) neurons in midbrain ventral periaqueductal gray (vPAG) are involved in general anesthesia and how general anesthetics affect these neurons remain sparsely documented. To determine t...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-018-2486-y
更新日期：2018-04-01 00:00:00
abstract：:A rapid and specific method for assaying 4-aminobutyrate-2-oxoglutarate aminotransferase was developed. The method was based on the selectivity of ion exchange resin and the speed of vacuum filtration. With this new method, the aminotransferase activity in various tissues has been determined as follows: brain, 10.2; s...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964061
更新日期：1978-04-01 00:00:00
abstract：:The influence of theophylline (2.5--100 mg/kg p.o.) on cyclic 3',5'-adenosine monophosphate (cAMP) and cyclic 3',5'-guanosine monophosphate (cGMP) in brain of Sprague-Dawley rats (0.5--3.0 hr after administration of theophylline) was investigated. It was found that theophylline increases cAMP and cGMP levels when admi...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964436
更新日期：1979-10-01 00:00:00
