Abstract：
:Calpains, cathepsins and caspases play crucial role in mediating cell death. In the present study we observed a cascade of events involving the three proteases during middle cerebral artery occlusion (MCAo) in Wistar rats. The rats were MCA occluded and reperfused at various time points. We observed a maximal increase in the levels of calpains during 1h and 12 h after reperfusion than permanently occluded rats. Further, these levels were reduced by 1st and 3rd day of reperfusion. Similarly the cathepsin-b levels were significantly increased during 1h and 12 h, of reperfusion, followed by activation of caspase-3 which reached maximal levels by 1st and 3rd day of reperfusion. The sequential activation of calpains, cathepsin-b and cleaved caspase-3 is evident by the Western blot analysis which was further confirmed by the cleavage of substrates like PSD-95 and spectrin. The differences in the regional distribution and elevation of these proteases at different reperfusion time periods indicates that differential mode of cell death occur in the brain during cerebral ischemia in rat model.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Chaitanya GV,Babu PPdoi
10.1007/s11064-007-9567-7subject
Has Abstractpub_date
2008-11-01 00:00:00pages
2178-86issue
11eissn
0364-3190issn
1573-6903journal_volume
33pub_type
杂志文章abstract：:Metal ions are often used to block calcium channels in various tissues, including synaptosomes. In the present study, Fura-2 was used to determine the effectiveness of various metal ions as calcium channel blockers in rat brain synaptosomes in vitro. In buffer solutions, La3+ and Cd2+ increased the Fura-2 fluorescence...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965611
更新日期：1989-11-01 00:00:00
abstract：:Increasing evidence indicates that adhesion molecules are critically involved in the regulation of mechanisms of synaptic plasticity including synapse formation, but also synaptic remodeling associated to changes in synaptic strength. Among these, the Neural Cell Adhesion Molecule (NCAM) and its polysialylated form PS...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-008-9653-5
更新日期：2008-03-20 00:00:00
abstract：:We investigated the ability of hydrogen peroxide (H2O2) to cause apoptotic cell death in cultured rat forebrain neurons and the potential mechanisms by which oxidative stress triggers delayed neuronal death. H2O2 (25 microM for 5 min) reduced cell viability to 34.5 +/- 8.3% of untreated controls 20 h after exposure, a...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1022403224901
更新日期：1997-03-01 00:00:00
abstract：:Diurnal changes in Chordc1 mRNA were recently described in mouse hypothalamus. This report shows that Chordc1 mRNA changes rhythmically throughout the entire adult brain with highest expression levels occurring around the dark-light transition. The rhythmic cycling pattern of Chordc1 was retained under various light-d...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-006-9271-z
更新日期：2007-02-01 00:00:00
abstract：:The metabolic effects of ganglioside GM1 were found to be quite different in brain synaptosomes and phagocytic cells. Incubation of rat brain cortex synaptosomes with GM1 was shown to decrease the production of reactive oxygen species induced by Fe2+-H2O2 system and measured by chemiluminometric method in the presence...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1020296605444
更新日期：2002-08-01 00:00:00
abstract：:Evidence that brain glutamatergic activity is pathologically elevated in bipolar disorder suggests that mood stabilizers are therapeutic in the disease in part by downregulating glutamatergic activity. Such activity can involve the second messenger, arachidonic acid (AA, 20:4n - 6). We tested this hypothesis with rega...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-008-9700-2
更新日期：2008-11-01 00:00:00
abstract：:Lewy bodies and Lewy neurites in the brain constitute the main histopathological features of Parkinson's disease (PD) and dementia with Lewy bodies. They comprise amyloid-like fibrils composed of α-synuclein (αS), a small protein (~14 kDa). Because the aggregation of αS in the brain has been implicated as a critical s...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-017-2382-x
更新日期：2017-12-01 00:00:00
abstract：:Changes in oxygen consumption, body temperature and energy metabolism were studied while mice were repeatedly exposed to a sealed environment. The average tolerance limits of environmental oxygen level (vol%) and the average oxygen consumption rates (ml/g x min) were exponentially decreased and the average body rectal...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1021092023253
更新日期：1999-05-01 00:00:00
abstract：:Umbilical cord blood-derived marrow stromal cells (UCB-MSCs) with high proliferation capacity and immunomodulatory properties are considered to be a good candidate for cell-based therapies. But until now, little work has been focused on the differentiation of UCB-MSCs. In this work, UCB-MSCs were demonstrated to be ne...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-013-1186-x
更新日期：2013-12-01 00:00:00
abstract：:Isozyme patterns of cholinesterase (ChE) from heart, tongue, and skeletal muscle of normal and dystrophic hamsters are presented. Two principal bands, bands 1 and 2, were evaluated. Band 1 migrates faster towards the anode than does band 2. While bands 1 and 2 stain for AChE and were found in control muscles, only ban...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964958
更新日期：1980-12-01 00:00:00
abstract：:Proteasome inhibition has been observed in many neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. Here, the effect of proteasome inhibition on the morphology of cultured rat cortical astrocytes was investigated. Increasing evidence suggests that the function of astrocytes is related close...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-008-9830-6
更新日期：2009-05-01 00:00:00
abstract：:Brofaromine, a selective and reversible inhibitor of monoamine oxidase-A (MAO-A) was given to 19 women while 17 received placebo for 8 weeks. All met DSM III-R criteria for bulimia nervosa, a psychiatric disorder in which uncontrolled overeating episodes are accompanied by purging activities and extreme concerns about...
journal_title：Neurochemical research
pub_type： 临床试验,杂志文章
doi：10.1007/BF00975048
更新日期：1993-12-01 00:00:00
abstract：:Repeated electroconvulsive shock is an effective treatment for affective disorders. Striatum, hippocampus and brainstem are involved in affective disorders. Sodium-potassium/ATPase is of paramount importance for the proper functioning of the brain and its involvement in the affective disorders has been claimed for a l...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-006-9046-6
更新日期：2006-04-01 00:00:00
abstract：: ...
journal_title：Neurochemical research
pub_type： 传,社论,历史文章
doi：10.1007/s11064-018-02702-3
更新日期：2019-01-01 00:00:00
abstract：:Single prolonged stress (SPS) is one of the preclinical models of posttraumatic stress disorder (PTSD) in humans. Not every traumatized person develops PTSD and the onset of the disease varies from months to many years after exposure to life-threatening events. The pathogenetic neurometabolites in PTSD have not been i...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-017-2232-x
更新日期：2017-08-01 00:00:00
abstract：:A simple, rapid method for determining depolarization-induced 45Ca influx into synaptosomes is described. Synaptosomes which had been depolarized in the presence of 45Ca were applied to a small column of Chelex-100 resin to separate free Ca2+ from that taken up by the tissue. Approximately 70% of the synaptosomal prot...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965062
更新日期：1982-02-01 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：:A number of axonal proteins display changes in phosphorylation during goldfish optic nerve regeneration (Larrivee and Grafstein, 1989). (1) To determine whether the phosphorylation of these proteins was closely linked to their synthesis in the retinal ganglion cell body, cycloheximide was injected intraocularly into g...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965906
更新日期：1990-09-01 00:00:00
abstract：:The neurotrophins brain derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) are both expressed in developing cerebellum in addition to their tyrosine kinase receptors. TrkB and TrkC. In contrast to BDNF.NT-3 has only a negligible or a transient survival activity on cultured cerebellar granule neurons. The gra...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF02532309
更新日期：1996-07-01 00:00:00
abstract：:The activity of guanine deaminase (GAH, E.C.3.5.4.3) was lower in rat cerebellum soluble and microsomal fractions than in rat brain subfractions. Adenosine deaminase (ADA, E.C.3.5.4.4) activity was released in higher proportion than guanine deaminase, purine nucleoside phosphorylase (PNP, E.C.2.1.2.4), 5'-nucleotidase...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965016
更新日期：1986-03-01 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：:In this review we examine successively: 1) the major effects of thyroid hormone deficiency seen during brain development with special emphasis on the changes in neuronal morphology and migration occurring postnatally in the cerebellum. 2) The effects of this hormone on microtubule assembly during neurite outgrowth and...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/BF00965840
更新日期：1991-09-01 00:00:00
abstract：:The exposure to hypobaric hypoxia increased lipid peroxidation as indicated by thiobarbituric acid-reactive substances [TBARS] in rat brain. Plasma lactate/pyruvate ratio was used as a marker of hypoxia. We compared the protective effect of alpha-tocopherol with the effect of L-carnitine or phosphocreatine. Rats pretr...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1020339530924
更新日期：2002-09-01 00:00:00
abstract：:Berberine and palmatine exhibit a mild and competitive inhibition on bovine adrenal tyrosine hydroxylase (EC 1.14.16.2; TH). In this study, the inhibitory effects of protoberberine alkaloids (such as berberine, palmatine and coptisine) on dopamine biosynthesis in PC12 cells were investigated. Treatment with berberine ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1007541020736
更新日期：2000-03-01 00:00:00
abstract：:The steady-state mRNA levels of NGF, BDNF and NT-3, and the mRNA levels of their receptors p75NGFR, trk, trkB, and trkC were examined in various human peripheral neuropathies, to determine the correlation with myelinated fiber pathology and T cell and macrophage invasions in the diseased nerves. Steady state levels of...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1022434209787
更新日期：1998-06-01 00:00:00
abstract：:The release of labeled norepinephrine from preloaded synaptosomes requires the presence of potassium and calcium. ATP-dependent binding of calcium to synaptic plasma membranes (SPM) may provide a means of maintaining the cation in a readily available pool for the triggering of transmitter release. A high Ca-binding ca...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965106
更新日期：1983-04-01 00:00:00
abstract：:Age related changes in brain cortex NO metabolism were investigated in mitochondria and cytosolic extracts from youth to adulthood. Decreases of 19%, 40% and 71% in NO production were observed in mitochondrial fractions from 3, 7, and 14 months old rats, respectively, as compared with 1-month-old rats. Decreased nNOS ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-007-9570-z
更新日期：2008-07-01 00:00:00
abstract：:Uridine, a pyrimidine nucleoside, has been proposed to be a potential signaling molecule in the central nervous system. The understanding of uridine release in the brain is therefore of fundamental importance. The present study was performed to determine the characteristics of basal and morphine-induced uridine releas...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-012-0903-1
更新日期：2013-01-01 00:00:00
abstract：:Acetylcholinesterase (AChE) inhibition has been described as the main mechanism of organophosphate (OP)-evoked toxicity. OPs represent a human health threat, because chronic exposure to low doses can damage the developing brain, and acute exposure can produce long-lasting damage to adult brains, despite post-exposure ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-015-1548-7
更新日期：2015-10-01 00:00:00
abstract：:The p53 tumor suppressor gene is a sequence-specific transcription factor that activates the expression of genes engaged in promoting growth arrest or cell death in response to multiple forms of cellular stress. p53 expression is elevated in damaged neurons in acute models of injury such as ischemia and epilepsy and i...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1023/a:1021687810103
更新日期：2003-01-01 00:00:00
