Abstract:
:Alpha adrenergic receptor subtypes in rat hippocampal membranes were studied, using [3H] clonidine as the radioactive ligand. On the basis of competitive binding studies, using the selective antagonist-prazosin, WB-4101, and yohimbine, [3H] clonidine appeared to bind to a population of presynaptic sites that are pharmacologically similar to receptors previously classified as alpha 2. A computerized model that linearized and produced the best possible fit to the experimental data points indicated that [3H] clonidine binds to a single population of receptors possessing equal affinity for the ligand. Binding data also indicated that rat hippo-campus contains significantly fewer [3H]clonidine binding sites than rat cortex.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
George CRdoi
10.1007/BF00965058subject
Has Abstractpub_date
1982-02-01 00:00:00pages
205-11issue
2eissn
0364-3190issn
1573-6903journal_volume
7pub_type
杂志文章abstract::(4S)-4-Amino-5,6-heptadienoic acid [S)-gamma-allenyl-GABA; MDL 72483) is a potent inactivator of brain GABA-T in mice; (ED50 (i.p.) = 60 mg.kg-1; ED50 (oral) = 70 mg.kg-1). Its anticonvulsant effects against 3-mercaptopropionic acid (MPA)-induced seizures in mice is related to the elevation of whole brain GABA concent...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00966092
更新日期:1991-03-01 00:00:00
abstract::This study investigated the effects of aging on the actions of a specific glutamate reuptake blocker, L-trans-pyrrolidine-2, 4-dicarboxylic acid (PDC), in extracellular glutamate and glutamine in striatum of the awake rat. Microdialysis experiments were performed on young (2-3 months), middle-aged (12-14 months), aged...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/a:1007624531077
更新日期:2001-01-01 00:00:00
abstract::The adaptation of cells to hyperosmotic conditions involves accumulation of organic osmolytes to achieve osmotic equilibrium and maintenance of cell volume. The Na+ and Cl(-)-coupled betaine/GABA transporter, designated BGT-1, is responsible for the cellular accumulation of betaine and has been proposed to play a role...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-005-6879-3
更新日期:2005-06-01 00:00:00
abstract::The immediate and long-term effects of the selective serotonergic neurotoxin 5,7-dihydroxytryptamine (5,7-DHT) on rat striatal serotonergic neurons were examined after its intracerebroventricular administration using in vivo voltammetry. Extracellular concentration of 5-hydroxyindoles increased immediately following i...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/a:1022460216822
更新日期:1998-01-01 00:00:00
abstract::The role of repulsive guidance molecule A (RGMa) in cerebral ischemia remains unclear. In the study, we examined the expression of RGMa in ischemic brain tissues following focal cerebral ischemia/reperfusion (IR) in rats. An established middle cerebral artery suture occlusion model was employed. A dipolar electrode wa...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-012-0809-y
更新日期:2012-09-01 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 synaptic glutamate level homeostasis is mainly maintained by the astrocytes membrane bound glutamate transporter type-1 (GLT-1/EAAT2). Alterations in its expression during development and aging and the underlying mechanisms are not well studied. Here, we report that NF-κB interaction was highest in both cerebral a...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-013-1200-3
更新日期:2014-01-01 00:00:00
abstract::Growth-promoting macroglia (aldynoglia) with growth properties and immunological markers similar to Schwann cells, are found in loci of the mammalian CNS where axon regeneration occurs throughout life, like the olfactory sytem, hypothalamus-hypophysis and the pineal gland. Contrary to Schwann cells, aldynoglia mingle ...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1023/a:1026056921037
更新日期:2003-11-01 00:00:00
abstract::The aim of this study was to determine the anticancer potential of Leonurus sibiricus extract derived from in vitro transgenic roots transformed by Agrobacetrium rhizogenes with AtPAP1 transcriptional factor, and that of transformed roots without construct, on grade IV human glioma cells and the U87MG cell line, and a...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-018-2551-6
更新日期:2018-07-01 00:00:00
abstract::In vitro aggregation and fibrillization of synthetic amyloid beta-protein Abeta 1-40 was assessed in the conditioned media from rhabdomyosarcoma (CRL 1598, HTB 82, HTB 153, CCL 136), adenocarcinoma (CCL 218), neuroblastoma (SY5Y), and COS cells cultured in the absence and presence of 10% heat-inactivated fetal bovine ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/a:1027379926976
更新日期:1997-02-01 00:00:00
abstract::Protein kinase A (PKA) plays a crucial role in tau hyperphosphorylation, an early event of Alzheimer disease (AD), and 17beta-estradiol replacement in aging women forestalls the onset of AD. However, the role of estradiol in PKA-induced tau hyperphosphorylation is not known. Here, we investigated the effect of 17beta-...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-008-9638-4
更新日期:2008-09-01 00:00:00
abstract::3-Nitropropionic acid (3-NP)-induced neurotoxicity can be used as a model for the genetic neurodegenerative disorder Huntington's disease (HD). A metabolic profiling strategy was adopted to explore the biochemical consequences of 3-NP administered to rats in specific brain regions. (1)H NMR spectroscopy was used to ch...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-008-9904-5
更新日期:2009-07-01 00:00:00
abstract::Amphiphile dependency, solubility in aqueous solutions, and sensitivity to proteolysis of acetylcholinesterase (AChE) and nonspecific cholinesterase (nsChE) in the rat superior cervical ganglion were studied and compared to properties of soluble plasma cholinesterases. Ganglion AChE shows strong amphiphile dependency:...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964537
更新日期:1985-06-01 00:00:00
abstract::The central control of growth hormone (GH) secretion from the pituitary gland is ultimately achieved by the interaction between two hypothalamic neurohormones, somatostatin which inhibits and growth hormone-releasing hormone (GHRH) which stimulates GH release. The regulation of the somatostatin and GHRH release from t...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1007/s11064-005-9017-3
更新日期:2006-02-01 00:00:00
abstract::N-methyl-D-aspartate (NMDA) inhibits carbachol-stimulated phosphoinositide breakdown in rat brain cortical slices but not in isolated membranes (1). To gain insight into the mechanisms, we examined the effects of NMDA on carbachol-stimulated [3H]inositol phosphate and intermediates of phosphatidylinositol cycle accumu...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/a:1022426204583
更新日期:1997-05-01 00:00:00
abstract::Pathophysiological concentrations of branched chain keto-acids (BCKAs), such as those that occur in maple syrup urine disease, inhibit oxygen consumption in liver homogenates and brain slices and the enzymatic activity of alpha-ketoglutarate- and pyruvate dehydrogenase complexes. Consistent with previous work, studies...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-007-9291-3
更新日期:2007-04-01 00:00:00
abstract::Pig brain extracts from both soluble and membrane fractions were found to contain potent inhibitors for GABA synthesizing enzyme, GAD, referred to as endogenous GAD inhibitors (EGIs) and for the binding of GABA agonist, muscimol, referred to as muscimol binding inhibitors (MBIs). EGIs and MBIs were first purified thro...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00966871
更新日期:1992-01-01 00:00:00
abstract::Glutamate, the primary excitatory neurotransmitter in the central nervous system (CNS), exerts neuromodulatory actions via the activation of metabotropic glutamate (mGlu) receptors. There are eight known mGlu receptor subtypes (mGlu1-8), which are widely expressed throughout the brain, and are divided into three group...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1007/s11064-014-1415-y
更新日期:2014-10-01 00:00:00
abstract::In the present work we investigated the in vitro effect of the branched-chain amino acids (BCAA) accumulating in maple syrup urine disease (MSUD) on some parameters of energy metabolism in cerebral cortex of rats. 14CO2 production from [1-14C]acetate, [1-5-14C]citrate and [U-14C]glucose, as well as glucose uptake by t...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-007-9423-9
更新日期:2008-01-01 00:00:00
abstract::Microglia can exacerbate central nervous system disorders, including stroke and chronic progressive neurodegenerative diseases such as Alzheimer disease. Mounting evidence points to ion channels expressed by microglia as contributing to these neuropathologies. The Chloride Intracellular Channel (CLIC) family represent...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-013-1084-2
更新日期:2013-09-01 00:00:00
abstract::The binding of the enkephalin dimer [D-Ala2, Leu5-NH-CH2-]2 (DPE2) is characterized by its high affinity for receptors on NG108-15 hybrid cells, the affinity constant K = 4.7 X 10(9) M-1 is up to 8-fold that of monomers (0.6 to 1.0 X 10(9) M-1), and a maximal binding capacity equal to one half that of the monomers. Ki...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00965208
更新日期:1986-06-01 00:00:00
abstract::Exploring the neurochemical continuum between frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) with respect to monoamines and kynurenines in cerebrospinal fluid (CSF) and serum, may be useful to identify possible new research/therapeutic targets. Hence, we analysed monoamines and kynurenines in CS...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-020-03002-5
更新日期:2020-05-01 00:00:00
abstract::The most important therapeutic effect of cholinesterase inhibitors (ChEI) on approximately 50% of Alzheimer's disease (AD) patients is to stabilize cognitive function at a steady level during a 1-year period of treatment as compared to placebo. Recent studies show that in a certain percentage (approximately 20%) of pa...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1023/a:1022869222652
更新日期:2003-04-01 00:00:00
abstract::Human dental follicle cells (DFCs) are ectomesenchymal multipotent stem cells that form spheroid cell clusters (SCCs) under serum free medium cell culture conditions (SFM). Until today, molecular mechanisms for the formation of SCCs are unknown. In this study a quantitative phosphoproteomics approach revealed regulate...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-014-1298-y
更新日期:2014-07-01 00:00:00
abstract::The overlapping distribution of opioid and cholecystokinin (CCK) peptides and their receptors (mu and delta opioid receptors; CCK-A and CCK-B receptors) in the central nervous system have led to a large number of studies aimed at clarifying the functional relationships between these two neuropeptides. Most of the phar...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1007/BF02532381
更新日期:1996-11-01 00:00:00
abstract::A major part of the Ca-activated proteolytic activity in the soluble fraction from rabbit brain could be due to the activity of the neutral thiol-proteases calpain I and II. The activity of calpains exceeded that of the endogenous inhibitor, calpastatin, at all developmental stages studied. The level of calpains incre...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00965622
更新日期:1989-11-01 00:00:00
abstract::It has been proposed that taurine may function as an oxidant in a dose-dependent manner in vivo and in vitro. The present study was carried out to investigate the relationship between taurine concentration and 3-nitrotyrosine level, a stable marker of peroxynitrite action, in hepatocytes of guinea pig in endotoxemia b...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-007-9395-9
更新日期:2007-11-01 00:00:00
abstract::SENP3 (SUMO-specific proteases 3), a member of the small ubiquitin-like modifier specific protease family, was identified as a molecule that deconjugates SUMOylation of modified protein substrates and functions as an isopeptidase by disrupting SUMO homeostasis to facilitate cancer development and progression. However,...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-012-0869-z
更新日期:2012-12-01 00:00:00
abstract::Alzheimer's disease (AD) is a common neurodegenerative condition that affects the elderly population. Its primary symptom is memory loss. The memory dysfunction in AD has been associated with cortical cholinergic deficiency and loss of cholinergic neurons of the nucleus basalis of Meynert (NBM). Zizyphus jujube (ZJ) a...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-013-1232-8
更新日期:2014-02-01 00:00:00
abstract::The present work describes the kinetics of enkephalin hydrolysis by plasma enzymes and the fragmentation pattern of both the parent peptide and of the first hydrolysis by-products. The degradation kinetics were followed by positive identification of the hydrolysis fragments by chromatographic methods, by amino acid an...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964980
更新日期:1985-10-01 00:00:00