Abstract:
:High-affinity binding sites for [3H]PK 11195 and [3H]Ro 5-4864 with the properties of the peripheral-type benzodiazepine receptor were detected in primary cultures of both mouse neocortical and cerebellar astrocytes. The binding sites were enriched in mitochondrial fractions on differential centrifugation. An 18-kDa polypeptide was specifically photolabelled in cerebellar astrocytes by [3H]PK 14105, a photolabel for the peripheral-type benzodiazepine receptor. However, this polypeptide did not show any reactivity with an antiserum previously raised against the corresponding polypeptide from rat adrenal gland. Various anticonvulsant and convulsant agents were tested for their ability and potency at inhibiting [3H]Ro 5-4864 binding to neocortical astrocytes. Many of these compounds previously reported to be inhibitors of diazepam binding to neocortical astrocytes, proved ineffective in this study. No correlation was observed between convulsant/anticonvulsant potency and ability to inhibit [3H]Ro 5-4864 binding to the peripheral-type benzodiazepine receptor in these cells. Thus, whereas some convulsants and anticonvulsants might interact with this astrocytic receptor, such a system has no validity as a general screening method for these agents.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Moynagh PN,Schousboe A,Williams DCdoi
10.1046/j.1471-4159.1994.62020673.xsubject
Has Abstractpub_date
1994-02-01 00:00:00pages
673-9issue
2eissn
0022-3042issn
1471-4159journal_volume
62pub_type
杂志文章abstract::In a study employing mouse brain synaptosomes and synaptosomal sonicates, the complete metabolic machinery was found to be present for transport of arginine into synaptosomes, its conversion to ornithine, and the formation from the latter of glutamic acid, gamma-aminobutyric acid, and proline. The results show that a ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1984.tb12719.x
更新日期:1984-04-01 00:00:00
abstract::While it has been reported that familial Alzheimer's disease (FAD)-linked mutants of amyloid precursor protein (APP) and presenilin (PS)2 induce neuronal cytotoxicity in a manner sensitive to antioxidant and pertussis toxin (PTX), little of the mechanism for PS1-mediated neuronal cell death has been characterized. We ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.0022-3042.2001.00722.x
更新日期:2002-02-01 00:00:00
abstract::Cell aggregation is one of several environmental cues that influence the expression of neurotransmitter phenotype during development. The expression of the catecholaminergic phenotype is increased in rat pheochromocytoma cells cultured at high density. In the present study we have investigated whether this cell densit...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1994.62030844.x
更新日期:1994-03-01 00:00:00
abstract::Previous work in this laboratory has shown that adrenal medullary transplants into the spinal cord subarachnoid space can reduce pain sensitivity. This analgesia most likely results from the release of neuroactive substances, particularly catecholamines and opioid peptides, from the transplanted cells into the CSF of ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1991.tb08195.x
更新日期:1991-02-01 00:00:00
abstract::Recently, we described estrogen and agonists of the G-protein coupled estrogen receptor GPR30 to induce protein kinase C (PKC)ε-dependent pain sensitization. PKCε phosphorylates the ion channel transient receptor potential, vanilloid subclass I (TRPV1) close to a novel microtubule-TRPV1 binding site. We now modeled th...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2011.07270.x
更新日期:2011-06-01 00:00:00
abstract::Environmental regulation of sensory function has provided an important model of plastic mechanisms mediating neural information processing. To define potential commonalities in information processing in different systems, we investigated molecular changes elicited by sensory deprivation in the developing rat olfactory...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1993.tb13410.x
更新日期:1993-05-01 00:00:00
abstract::The ubiquitous polyamines spermidine and spermine are known as modulators of glutamate receptors and inwardly rectifying potassium channels. They are synthesized by a set of specific enzymes in which spermidine synthase is the rate-limiting step catalysing the formation of the spermine precursor spermidine from putres...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2006.03721.x
更新日期:2006-04-01 00:00:00
abstract::Certain non-steroidal anti-inflammatory drugs (NSAIDs) preferentially inhibit production of the amyloidogenic Abeta42 peptide, presumably by direct modulation of gamma-secretase activity. A recent report indicated that NSAIDs could reduce Abeta42 by inhibition of the small GTPase Rho, and a single inhibitor of Rho kin...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2005.03553.x
更新日期:2006-01-01 00:00:00
abstract::Adrenomedullary chromaffin cells represent an excellent model to study the molecular events linked to exocytosis, because they use the same type of SNAREs for vesicle docking and fusion as neurons. In these cells, both in the intact tissue and in isolated cells in culture, syntaxin-1 and SNAP-25 are present in the pla...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/j.1471-4159.2010.06872.x
更新日期:2010-09-01 00:00:00
abstract::Mitogen-activated protein (MAP) kinases have been implicated in multiple responses to extracellular stimuli. In this study we show that MAP kinase activity is enhanced after a KCl pulse. This activation correlates with an increased tyrosine phosphorylation of a 42-kDa protein as determined by antiphosphotyrosine immun...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1996.66031005.x
更新日期:1996-03-01 00:00:00
abstract::The two proteins reggie-1/flotillin-2 and reggie-2/flotillin-1 form microdomains at the plasma membrane and at intracellular compartments where src tyrosine kinases associate with them. Specific GPI-anchored proteins, in particular prion protein and Thy-1, co-cluster with reggie microdomains at the plasma membrane and...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/j.1471-4159.2010.07007.x
更新日期:2011-03-01 00:00:00
abstract::Uptake of L-glutamine (2 mM) by rat brain cortex slices against a concentration gradient is markedly inhibited (40%) by branched-chain L-amino acids (1 mM), L-phenylalanine (1 mM), or L-methionine (1 mM); that of L-asparagine (2 mM) is much less affected by these amino acids. Other amino acids investigated have little...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1980.tb12491.x
更新日期:1980-07-01 00:00:00
abstract::Measurements were made of the amino acid content of a cellular clone (K55) derived from mouse cerebellar cultures transformed in vitro by simian virus-40 (Alliot and Pessac, 1981) and that appears to be astroglial. Both the total amount of amino acids as well as the percentage of glycine in K55 cells were higher than ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1983.tb13564.x
更新日期:1983-05-01 00:00:00
abstract::We have previously shown that acrolein, a lipid peroxidation byproduct, is significantly increased following spinal cord injury in vivo, and that exposure to neuronal cells results in oxidative stress, mitochondrial dysfunction, increased membrane permeability, impaired axonal conductivity, and eventually cell death. ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2007.05002.x
更新日期:2008-02-01 00:00:00
abstract::The effectiveness of intranasal drug administration to stimulate central neuronal systems is well known from drug addiction and has also been considered as an alternative pharmacokinetic approach to treat brain disorders such as Parkinson's disease. In the present study, the possible neurochemical effects of intranasa...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1997.68010233.x
更新日期:1997-01-01 00:00:00
abstract::Dystonia musculorum (dt) mice suffer from a severe sensory neuropathy caused by mutations in the gene encoding the cytoskeletal cross-linker protein dystonin/bullous pemphigoid antigen 1 (Bpag1). Loss of function of dystonin/Bpag1 within neurons leads to a loss in the maintenance of cytoskeletal organization and to th...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.01861.x
更新日期:2003-08-01 00:00:00
abstract::We recently demonstrated that the presenilin-dependent gamma-secretase complex regulates the expression and activity of neprilysin, one of the main enzymes that degrade the amyloid beta-peptide (Abeta) which accumulates in Alzheimer's disease. Here, we examined the influence of endogenous nicastrin (NCT), a member of ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2006.03822.x
更新日期:2006-05-01 00:00:00
abstract::The release of endogenous dopamine from the axon terminal field in the nucleus accumbens and from the A10 dopamine cell bodies of conscious rats was measured using intracranial dialysis. Release of dopamine from both areas was calcium-dependent and markedly inhibited by the presence of the D2 agonist, quinpirole, in t...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1991.tb02015.x
更新日期:1991-03-01 00:00:00
abstract::The effect of morphine on serotonin (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) in the CNS of unanesthetized rats was investigated by microdialysis. Morphine was administered either subcutaneously, by local perfusion into the diencephalon, or by intraraphe microinjection. Systemic administration of morphine resulte...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1994.63020517.x
更新日期:1994-08-01 00:00:00
abstract::Acetylcholinesterase (AChE) is found both in motor end-plate (MEP)-free and MEP-rich regions of rat or mouse muscle. We studied the developmental aspects of the localization of asymmetric 16S AChE in both regions of the sternocleidomastoid muscle, which has a well-defined zone of motor innervation. In the rat, the pro...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1984.tb02725.x
更新日期:1984-03-01 00:00:00
abstract::Dietary n-6 polyunsaturated fatty acid (PUFA) deprivation in rodents reduces brain arachidonic acid (20:4n-6) concentration and 20:4n-6-preferring cytosolic phospholipase A(2) (cPLA(2) -IVA) and cyclooxygenase (COX)-2 expression, while increasing brain docosahexaenoic acid (DHA, 22:6n-3) concentration and DHA-selectiv...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2011.07597.x
更新日期:2012-03-01 00:00:00
abstract::Choline acetyltransferase (ChAT), the enzyme synthesizing acetylcholine, is known to be activated by brain derived neurotrophic factor (BDNF). We found that the specific removal of the carbohydrate polysialic acid (PSA) significantly increased BDNF-induced ChAT-activity in embryonic septal neurons. Using a p75 neurotr...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2006.04110.x
更新日期:2006-11-01 00:00:00
abstract::Melanocortin-4 receptors (MC4 R) are unique among G-protein-coupled receptors (GPCRs) as they have endogenous ligands that can exhibit inverse agonistic properties in the case of elevated basal activity. It is known that the constitutive activity of GPCRs strongly affects the ligand-dependent physiological responses, ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14933
更新日期:2020-05-01 00:00:00
abstract::Parkinson's disease is a debilitating neurodegenerative disease characterized by loss of midbrain dopaminergic neurons. These neurons are particularly sensitive to the neurotoxin 1-methyl-4-phenylpyridinium (MPP+), the active metabolite of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), which causes parkinsonian ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2005.03329.x
更新日期:2005-09-01 00:00:00
abstract::High-affinity binding sites (apparent KD = 1.5 nM) for [3H]desipramine have been demonstrated and characterized in membranes prepared from rat brain. The binding of [3H]desipramine was found to be saturable, reversible, heat-sensitive, sodium-dependent, and regionally distributed among various regions of the brain. Hi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1982.tb05326.x
更新日期:1982-04-01 00:00:00
abstract::Preincubation of D384 cells, derived from the human astrocytoma cell line G-CCM, with dopamine resulted in a time-dependent attenuation of cyclic AMP responsiveness to subsequent dopamine stimulation. This effect was agonist specific because the prostaglandin E1 (PGE1) stimulation of cyclic AMP of similarly treated ce...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb05803.x
更新日期:1990-12-01 00:00:00
abstract::Thymosin beta 4 (Tβ4), a secreted 43 amino acid peptide, promotes oligodendrogenesis, and improves neurological outcome in rat models of neurologic injury. We demonstrated that exogenous Tβ4 treatment up-regulated the expression of the miR-200a in vitro in rat brain progenitor cells and in vivo in the peri-infarct are...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.13394
更新日期:2016-01-01 00:00:00
abstract::The biogenic amine serotonin (5-HT) plays a key role in the regulation and modulation of many physiological and behavioural processes in both vertebrates and invertebrates. These functions are mediated through the binding of serotonin to its receptors, of which 13 subtypes have been characterized in vertebrates. We ha...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2006.04012.x
更新日期:2006-09-01 00:00:00
abstract::Long-chain polyunsaturated (n-3) fatty acids have been reported to influence the efficiency of membrane receptors, transporters and enzymes. Because the brain is particularly rich in docosahexaenoic acid (DHA, 22:6 n-3), the present study addresses the question of whether the 22:6 n-3 fatty acid deficiency induces dis...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2002.00932.x
更新日期:2002-06-01 00:00:00
abstract::For more than three decades, the venom of the black widow spider and its principal active components, latrotoxins, have been used to induce release of neurotransmitters and hormones and to study the mechanisms of exocytosis. Given the complex nature of alpha--latrotoxin (alpha-LTX) actions, this research has been cont...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/j.1471-4159.2009.06329.x
更新日期:2009-10-01 00:00:00