abstract：:Chicken neurons in culture display measurable activities of mono- and diacylglycerol lipases. Treatment of chicken neuronal cultures with gangliosides (10(-8)M to 10(-5)M) resulted in a time and dose dependent increase in monoacylglycerol lipase activity. The diacylglycerol lipase showed significant increase in specif...

journal_title：Neurochemical research

authors： Freysz L,Farooqui AA,Horrocks LA,Massarelli R,Dreyfus H

更新日期：1991-11-01 00:00:00

abstract：:Calcium-naive synaptosomes were used to assess the effects of divalent cations on [3H]acetylcholine release from rat hippocampal homogenates. Following equilibration with calcium-free buffer (containing 10 microM EGTA), calcium reversibly increased [3H]acetylcholine efflux (up to five-fold) while causing no measurable...

journal_title：Neurochemical research

authors： Vickroy TW,Schneider CJ

更新日期：1991-10-01 00:00:00

abstract：:Tetrahydrobiopterin and the folate coenzymes can reciprocally interact in ways that would be useful to the metabolic pathways subserved by both of these coenzymes. Thus, through one of the reactions catalyzed by methylene tetrahydrofolate reductase, 5-CH3-H4-folate can regenerate BH4 from q-BH2 and q-BH2 can provide a...

journal_title：Neurochemical research

authors： Kaufman S

更新日期：1991-09-01 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

authors： Nunez J,Couchie D,Aniello F,Bridoux AM

更新日期：1991-09-01 00:00:00

abstract：:Oxidation of [2,3-14C]succinate in the intramitochondrial Krebs cycle was used as a probe to investigate the effect of ammonia on protein incorporation and Krebs cycle oxidation of succinate carbons in isolated rat hepatocytes. At low concentrations of ammonium chloride (0.1 to 0.5 mM) a slight increase in 14CO2 forma...

journal_title：Neurochemical research

authors： Bessman SP,Wang W,Mohan C

更新日期：1991-07-01 00:00:00

abstract：:The 7S NGF complex from the male mouse submaxillary gland consists of the alpha, gamma, and beta subunits in the ratio alpha 2 gamma 2 beta. The beta (NGF) subunit contains all the known biolocial activity of 7S NGF. The alpha and gamma subunits are both members of glandular kallikrein gene family, yet only gamma subu...

journal_title：Neurochemical research

authors： Burcham TS,Sim I,Bolin LM,Shooter EM

更新日期：1991-06-01 00:00:00

abstract：:Immunocytochemistry was used to determine sites of synthesis and pathways for the transport of the neuropeptide, Leucomyosuppressin (pQDVDHVFLRFamide) in the cockroach, Leucophaea maderae. This study led to identification of neurons in the brain and thoracic ganglia reactive to polyclonal antibodies raised against thi...

journal_title：Neurochemical research

authors： Meola SM,Wright MS,Holman GM,Thompson JM

更新日期：1991-05-01 00:00:00

abstract：:Some crustacean axons remain functional for months after injury. This unusual property may require stress proteins synthesized by those neurons or provided to them by glial cells. To begin to explore this hypothesis, we examined the conditions that stimulated stress protein synthesis by crayfish CNS tissue in vitro. I...

journal_title：Neurochemical research

authors： Rochelle JM,Grossfeld RM,Bunting DL,Tytell M,Dwyer BE,Xue ZY

更新日期：1991-05-01 00:00:00

abstract：:Nicotinic agonists stimulate 22Na flux in rat pheochromocytoma PC12 cells. The stimulatory effect of carbamylcholine is maximal at 1 mM, while the stimulatory effect of nicotine and anatoxin maximize at the same level at 100 microM and 10 microM, respectively. The tertiary amines arecolone and isoarecolone have no eff...

journal_title：Neurochemical research

authors： Daly JW,Nishizawa Y,Edwards MW,Waters JA,Aronstam RS

更新日期：1991-04-01 00:00:00

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

authors： Sarhan S,Casara P,Knödgen B,Seiler N

更新日期：1991-03-01 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

authors： Hansen GH,Hösli E,Belhage B,Schousboe A,Hösli L

更新日期：1991-03-01 00:00:00

abstract：:Phosphate activated glutaminase (PAG) was assayed in whole homogenate and synaptosomes of cerebral cortex from normal or fasted for 120 h rats. The specific activity (s.a.) of PAG was found diminished by 25% in the whole homogenate from the fasted animals compared to the normal. On the contrary, fasting did not affect...

journal_title：Neurochemical research

authors： Lellos V,Tselentis V,Galanopoulos E,Philippidis H,Palaiologos G

更新日期：1991-01-01 00:00:00

abstract：:ESR spin trapping technique was used to detect and analyze free radical formation. When 6-hydroxydopamine (6-OHDA) was incubated alone or in the presence of a free radical generating system (H2O2 and FeSO4), hydroxyl free radicals were observed in a concentration-dependent manner. Glutathione was found to be the most ...

journal_title：Neurochemical research

authors： Oldfield FF,Cowan DL,Sun AY

更新日期：1991-01-01 00:00:00

abstract：:The effects of mu, delta, and kappa receptor-agonists on forskolin stimulated cyclic adenosine-3',5'-monophosphate (cAMP) formation were examined in astroglial enriched primary cultures from the cerebral cortex of newborn rats. Intracellular cAMP accumulation was quantified by radioimmunoassay. Morphine was used as a ...

journal_title：Neurochemical research

authors： Eriksson PS,Hansson E,Rönnbäck L

更新日期：1990-11-01 00:00:00

abstract：:In membranes of rat striatum, phorbol 12-myristate 13-acetate (PMA), a potent activator of Ca2+/phospholipid-dependent protein kinase, enhanced adenylate cyclase activity by counteracting the inhibition elicited by GTP. Exposure to pertussis toxin caused a similar alteration of the GTP-regulation of the enzyme activit...

journal_title：Neurochemical research

authors： Olianas MC,Onali P

更新日期：1990-11-01 00:00:00

abstract：:The concentrations of noradrenaline (NA), dopamine (DA), serotonin (5-HT), and their metabolites were determined in 5 brain areas of non-pregnant, 15 and 20 day pregnant and 4 day post-partum rats. Striatal 5-HT content was significantly lower in 15 and 20 day pregnant rats than in estrous controls. A significant decr...

journal_title：Neurochemical research

authors： Glaser J,Russell VA,de Villiers AS,Searson JA,Taljaard JJ

更新日期：1990-10-01 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

authors： Larrivee D

更新日期：1990-09-01 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

authors： Biswas S,Poddar MK

更新日期：1990-08-01 00:00:00

abstract：:Intracerebral folate injections produce convulsions and brain lesions, folic acid itself and tetrahydrofolate being more potent toxins than 5-methyltetrahydrofolate, the primary folate of mammalian extracellular fluids. Folates are known to excite neurons, by unknown mechanisms Folates stimulate GTP binding and GTPase...

journal_title：Neurochemical research

authors： Hartley DM,Snodgrass SR

更新日期：1990-07-01 00:00:00

abstract：:Effects of single and repeated doses of acrylamide on fast and slow axonal transport of radio labeled proteins following the injection of L-[4,5-3H] leucine have been studied in the optic system of male Sprague-Dawley rats. A single dose of acrylamide (100 mg/kg) had no effect, but higher concentrations (200-300 mg/kg...

journal_title：Neurochemical research

authors： Sabri MI,Spencer PS

更新日期：1990-06-01 00:00:00

abstract：:Glutamine synthetase (GS) is the key enzyme in cerebral glutamine production. Understanding the regulation of the expression of GS is important for definition of the control of glutamine metabolism in brain. Therefore, we studied the control of GS expression by 8-bromo cyclic AMP in primary cultures of astrocytes prep...

journal_title：Neurochemical research

authors： Max SR,Landry ME,Zielke HR

更新日期：1990-06-01 00:00:00

abstract：:We have synthesized the tertiary amines of pyridostigmine and neostigmine, 3-pyridinol dimethylcarbamate (norpyridostigmine) and 3-dimethylaminophenol dimethylcarbamate (norneostigmine) respectively, and we have tested their abilities to cross the blood-brain barrier and inhibit mouse brain AChE activity. The in vivo ...

journal_title：Neurochemical research

authors： Arnal F,Coté LJ,Ginsburg S,Lawrence GD,Naini A,Sano M

更新日期：1990-06-01 00:00:00

abstract：:Synaptosomal membrane proteins solubilized with 8% CHAPS-8 M urea were analyzed with two-dimensional electrophoresis (2DE). The membrane proteins were resolved up to 250 spots on a 2DE map, ranging in isoelectric points (pI) from 3.5 to 10.0 and molecular weights (MW) from 10 kDa to 200 kDa. Comparison of the mapped p...

journal_title：Neurochemical research

authors： Ishioka N,Oda T,Natake Y,Kurioka S

更新日期：1990-05-01 00:00:00

abstract：:Autoantibodies to three eukaryotic 60S ribosomal phosphoproteins P0, P1 and P2 have been found in the sera of 10-20% of patients with systemic lupus erythematosus (SLE). These antibodies inhibit protein synthesis in vitro and when microinjected into cultured human fibroblasts. The three proteins share a common epitope...

journal_title：Neurochemical research

authors： Elkon K,Weissbach H,Brot N

更新日期：1990-04-01 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

authors： Fujita K,Guroff G,Yavin E,Goping G,Orenberg R,Lazarovici P

更新日期：1990-04-01 00:00:00

abstract：:The characteristics of endogenous Ca2+/calmodulin (CaM)- and Ca2+/phosphatidylserine (PS)-stimulated phosphorylated proteins in the striatum of rat were partially determined and compared in this study. The Ca2+/CaM-dependent phosphoproteins were associated with serine and threonine residues. The sensitivity of these p...

journal_title：Neurochemical research

authors： Lau YS

更新日期：1990-03-01 00:00:00

abstract：:Synaptosomes isolated from mouse brain were incubated with [14C]glutamate and [3H]gamma-amino-butyric acid ([3H]GABA), and then [14C]GABA (newly synthesized GABA) and [3H]GABA (newly captured GABA) in the synaptosomes were analysed. (1) the [3H]GABA was rapidly degraded in the synaptosomes, (2) when the synaptosomes w...

journal_title：Neurochemical research

authors： Asakura T,Matsuda M

更新日期：1990-03-01 00:00:00

abstract：:Schwann cell biosynthesis of glycolipids was studied by in vitro incorporation of [3H]galactose into neonatal rat sciatic nerves before and after endoneurial explant culture and in culture of purified Schwann cells. In neonatal nerves prior to culture, [3H]galactose was actively incorporated into galactocerebrosides (...

journal_title：Neurochemical research

authors： Yao JK,Windebank AJ,Poduslo JF,Yoshino JE

更新日期：1990-03-01 00:00:00

abstract：:During the past decade a new approach to pathogenetic studies of hepatic encephalopathy has been undertaken to identify the neurochemical alterations which characterize the syndrome. Using animal models of hepatic encephalopathy electrophysiological, behavioral, pharmacological and biochemical evidence were provided o...

journal_title：Neurochemical research

authors： Baraldi M

更新日期：1990-02-01 00:00:00

abstract：:Complementary DNA (cDNA) clones containing the entire coding sequence for Diazepam Binding Inhibitor (DBI) peptide, a 10-kDa precursor of putative natural ligands of benzodiazepine recognition sites, were isolated from rat, human and cow libraries. The sequence of all these clones is highly conserved; however, the N-t...

journal_title：Neurochemical research

authors： Mocchetti I

更新日期：1990-02-01 00:00:00

abstract：:Activation of cholinergic muscarinic receptors results in an increased turnover of membrane inositol phospholipids. In rat cerebral cortex slices, carbachol- and acetylcholine-induced inositol phosphates ([3H]InsPs) accumulation is maximal in 7 day-old rats and lowest in adults, while the density of muscarinic binding...

journal_title：Neurochemical research

authors： Balduini W,Costa LG,Murphy SD

更新日期：1990-01-01 00:00:00

abstract：:The release of endogenous amino acids from depolarized rat hippocampal mossy fiber synaptosomes was investigated to assess the possible role(s) of glutamate and aspartate in mediating the excitatory mossy fiber synaptic input. The relative proportions of prodynorphin-derived peptides concomitantly released with amino ...

journal_title：Neurochemical research

authors： Terrian DM,Gannon RL,Rea MA

更新日期：1990-01-01 00:00:00

abstract：:Ingestion of ammonium induces hyperammonemia which increases tubulin content in cerebrum but not in cerebellum. We have dissected 11 discrete areas of cerebrum and quantified the tubulin content in control and hyperammonemic rats. An heterogeneity in the induction of tubulin is shown. The areas more affected are ventr...

journal_title：Neurochemical research

authors： Miñana MD,Felipo V,Quel A,Pallardó F,Grisolía S

更新日期：1989-12-01 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

authors： Metcalfe T,Bowen DM,Muller DP

更新日期：1989-12-01 00:00:00

abstract：:Evidence is presented that multiple forms of cyclic nucleotide phophodiesterase (PDE) activity chromatographically separated from the soluble fraction of bovine hypothalamus are co-eluted with multiple forms of 5'-nucleotidase (5'N) activity. The enzymes could not be resolved from each other by anion-exchange chromato...

journal_title：Neurochemical research

authors： Galoyan AA,Gurvitz BYa,Sharova NP

更新日期：1989-12-01 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

authors： Blomgren K,Karlsson JO

更新日期：1989-11-01 00:00:00

abstract：:Consumption of fifteen percent alcohol, during gestation did not cause any decrease in the total calorie or fluid intake of the rats maintained on normal dietary regimen. However, the alcohol consumption by gestating mothers resulted in a decreased contents of both DNA and protein in the CNS of the in utero alcohol ex...

journal_title：Neurochemical research

authors： Prasad VV

更新日期：1989-11-01 00:00:00

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

authors： Sun YD,Benishin CG

更新日期：1989-11-01 00:00:00

abstract：:Convulsant doses of penicillin and elevated ambient pressure of 41 bar enhance the excitability of neurons. Their effects have been studied in neostriatal tissue with methods allowing differentiation between transmitter and metabolic glutamate pools. Levels of glutamate (Glu), glutamine (Gln), aspartate (Asp); gamma-a...

journal_title：Neurochemical research

authors： Furset K,Engelsen BA

更新日期：1989-11-01 00:00:00

abstract：:Brain regional 5-HT (5-hydroxytryptamine) and 5-HIAA (5-hydroxyindole-3-acetic acid) concentrations in male LE rats at three times were measured by a fluorescence method, to evaluate effects of intracranial surgery and administration of melatonin on the changes in these compounds during the first part of the dark phas...

journal_title：Neurochemical research

authors： Quay WB

更新日期：1989-10-01 00:00:00