abstract：:Hippocampal cells dissociated from 5-day-old rat pups were grown in a suitable chemically defined basal medium, supplemented or not with 3,3',5-triiodo-L-thyronine (T3), [Arg8]-vasopressin (AVP), or both, at different concentrations. Four days after plating, neuron-like cells began to degenerate drastically in the bas...

journal_title：Neurochemical research

authors： Clos J,Gabrion J

更新日期：1989-10-01 00:00:00

abstract：:Postmortem cerebral neocortical and hippocampal samples were taken from patients who died with dementia of the Alzheimer type (DAT) and individuals without diagnoses of neurological or psychiatric disease (control). Nicotinic binding was assayed with 20 nM [3H]acetylcholine [( 3H]ACh) in the presence of atropine, or w...

journal_title：Neurochemical research

authors： London ED,Ball MJ,Waller SB

更新日期：1989-08-01 00:00:00

abstract：:Analysis in mouse brain slices of the uptake of acetyl-L-[N-methyl-14C]carnitine with time showed it to be concentrative, and kinetic analysis gave a Km of 1.92 mM and a Vmax of 1.96 mumol/min per ml, indicating the presence of a low-affinity carrier system. The uptake was energy-requiring and sodium-dependent, being ...

journal_title：Neurochemical research

authors： Burlina AP,Sershen H,Debler EA,Lajtha A

更新日期：1989-05-01 00:00:00

abstract：:In order to obtain further evidence of putative neurotransmitters in primary sensory neurons and interneurons in the dorsal spinal cord, we have studied the effects of unilateral section of dorsal roots and unilateral occlusion of the dorsal spinal artery on cholinergic enzyme activity and on selected amino acid level...

journal_title：Neurochemical research

authors： Fujita K,Nagata Y

更新日期：1989-05-01 00:00:00

abstract：:The effects of palmitate on intracellular and extracellular amino acid concentrations of cultured astrocytes was studied. Exposure of astrocytes to either 0.72 mM or 0.36 mM palmitate was associated with a significant reduction in the intracellular pool of glutamine and taurine. In contrast, the intracellular concentr...

journal_title：Neurochemical research

authors： Yudkoff M,Nissim I,Nissim I,Stern J,Pleasure D

更新日期：1989-04-01 00:00:00

abstract：:With the aid of histochemical and electrophoretic techniques activities for esterase and esterprotease were investigated in the digastric and masseter muscles from normal and dystrophic mice. The substrates used were alpha-naphthyl acetate and N-acetyl-L-alanine alpha-naphthyl ester. According to the microscopic obser...

journal_title：Neurochemical research

authors： Kirkeby S,Moe D,Vilmann H

更新日期：1989-03-01 00:00:00

abstract：:DNase I sensitivity experiments were performed utilizing DNA probes to genes which are either transcribed in rat cortical neurons (the 68 kDa neurofilament gene and the neuron-specific enolase gene) or are transcriptionally silent (albumin). Results suggest that unlike liver, in which a hierarchy in chromatin conforma...

journal_title：Neurochemical research

authors： Ivanov TR,Brown IR

更新日期：1989-02-01 00:00:00

abstract：:The effect of 4-aminopyridine on [3H]acetylcholine release was studied in rat cerebral cortical synaptosomes in the presence of a several secretagogues that have different mechanisms of action. As found previously, 4-aminopyridine increased [3H]acetylcholine release in a concentration-dependent manner (5-10 mM); a hig...

journal_title：Neurochemical research

authors： Meyer EM,Otero DH

更新日期：1989-02-01 00:00:00

abstract：:The insoluble fraction of ox-brain, which had previously been shown to have a non-linear affinity for Na+ and K+, was prepared. Acetylcholine (1 x 10(-8) mol/l and 1 x 10(-7) mol/l) reduced the affinity of the fraction for Na+ and K+ to zero, while at 1 x 10(-6) mol/l, the affinity for the cations was almost as high a...

journal_title：Neurochemical research

authors： Ahmed N,Hillman H

更新日期：1989-02-01 00:00:00

abstract：:Incubation of membranes derived from sarcotubular system of rabbit skeletal muscle with increasing concentrations of Triton X-100 produced both stimulation of the AChE activity and solubilization of this enzyme. Mild proteolytic treatment of microsomal membranes produced a several fold activation of the still membrane...

journal_title：Neurochemical research

authors： Campoy FJ,Cánovas MD,Muñoz-Delgado E,Vidal CJ

更新日期：1989-02-01 00:00:00

abstract：:This study attempted to investigate the possible involvement of the brain stem noradrenergic system in the development of hypertension in spontaneously hypertensive rats. Steady-state norepinephrine, dopamine, serotonin and 5-hydroxyindoleacetic acid concentrations and norepinephrine turnover were determined in the in...

journal_title：Neurochemical research

authors： Yao H,Matsumoto T,Hirano M,Kuroki T,Tsutsumi T,Uchimura H,Nakamura K,Nakahara T,Fujishima M

更新日期：1989-01-01 00:00:00

abstract：:Convulsions and brain levels of amino acids and 5-hydroxytryptamine (5-HT) in E1 mice were examined after oral administration of a 1% guanidinoethane sulfonate (GES) solution. The incidence of convulsions increased 3 days after starting GES administration, and this effect continued throughout the 6 months of drug admi...

journal_title：Neurochemical research

authors： Hiramatsu M,Edamatsu R,Kabuto H,Higashihara Y,Mori A

更新日期：1989-01-01 00:00:00

abstract：:Ochratoxin A (OA) is a mycotoxin produced by several storage fungi, such as Aspergillus ochraceus and several Penicillium species. OA (3 mg/kg) was given intraperitoneally to pregnant mice on day 11 of gestation (day 1 = day of insemination), and neurochemical changes in brains of their offspring were examined at feta...

journal_title：Neurochemical research

authors： Tamaru M,Hirata Y,Matsutani T

更新日期：1988-12-01 00:00:00

abstract：:The objective of the present study was to investigate the effects of senescence on the binding characteristics of muscarinic receptors by using [3H]quinuclidinyl benzilate ([3H]QNB) and [3H]N-methylscopolamine ([3H]NMS) as ligands in young (3 months), middle-age (10 months) and old (24 months) male Fischer 344 rats. M...

journal_title：Neurochemical research

authors： Surichamorn W,Kim ON,Lee NH,Lai WS,el-Fakahany EE

更新日期：1988-12-01 00:00:00

abstract：:Experimental evidence has suggested that the high endogenous levels of taurine found in the rat heart and retina are maintained to a large extent by transport processes out of the blood, rather than by endogenous biosynthesis. When these high levels are depleted, dysfunction ensues. In vitro studies have shown that be...

journal_title：Neurochemical research

authors： Lake N,De Marte L

更新日期：1988-10-01 00:00:00

abstract：:We measured the activity of several acid hydrolases in oligodendrocyte and mixed glial (predominantly astrocytic) cell cultures prepared from neonatal rat cerebra. When compared with the mixed glial cultures, the cultured oligodendrocytes exhibited higher levels for all the hydrolases when activities were normalized t...

journal_title：Neurochemical research

authors： Bradel EJ,Sloan HR

更新日期：1988-10-01 00:00:00

abstract：:The concentrations of dopamine (DA), 5-hydroxytryptamine (5-HT) and noradrenaline (NA) in the rat vas deferens divided in eight or four sections were determined by high performance liquid chromatography with electrochemical detection. Dopamine and NA had the same regional distribution; their concentrations were maxima...

journal_title：Neurochemical research

authors： Celuch SM,Sloley BD

更新日期：1988-10-01 00:00:00

abstract：:Bovine brain synaptic membranes which were frozen and then extensively washed showed low affinity [3H]muscimol binding. These membranes contained GABA and calmodulin, apparently tightly bound within the membrane fraction. Membranes which were additionally treated with the detergent Triton X-100 showed high affinity [3...

journal_title：Neurochemical research

authors： O'Neill C,Williams DC

更新日期：1988-09-01 00:00:00

abstract：:We report here the isolation of fractions enriched in components of the myelin-like membranes surrounding the giant axons of the earthworm. Lumbricus terrestris L. The composition and purity of the fractions have been assessed using SDS-protein electrophoresis, Western immunoblots, and electron microscopy. Preliminary...

journal_title：Neurochemical research

authors： Pereyra PM,Roots BI

更新日期：1988-09-01 00:00:00

abstract：:Ethylcholine mustard aziridinium ion (ECMA) was infused intracerebroventricularly (icv) to rats followed by measurement of two markers of presynaptic cholinergic neurons, choline acetyltransferase (ChAT) activity and high affinity choline transport (HAChT), in the hippocampus and cortex. Bilateral icv administration o...

journal_title：Neurochemical research

authors： Johnson GV,Simonato M,Jope RS

更新日期：1988-08-01 00:00:00

abstract：:The search for neuronotrophic factors addressing CNS neurons requires CNS neuronal cell cultures to quantitate putative effects on neuronal survival. Investigation of neurons dissociated from several embryonic CNS tissues have shown that their short-term survival requires supplementation of the culture medium with eit...

journal_title：Neurochemical research

authors： Chau RM,Skaper SD,Varon S

更新日期：1988-07-01 00:00:00

abstract：:The effect of optic nerve transsection on proteolytic degradation of axonally transported proteins in the superior colliculus of the rabbit was studied. Proteolysis of labeled proteins was determined in vitro in small pieces of the superior colliculus. Within 2 hours after sectioning the optic nerve there was a decrea...

journal_title：Neurochemical research

authors： Gustavsson S,Karlsson JO

更新日期：1988-07-01 00:00:00

abstract：:The stability of somatostatin (SS) in brain tissue was studied in human material obtained post-mortem and in the rat. In both human and rat brain, loss of SS was found to occur in tissue frozen to -70 degrees C. In the rat, this loss varied from 26 to 70 percent depending on the type of tissue processing used. These d...

journal_title：Neurochemical research

authors： Cooper PE,Rahman Q,Phillips T,Tu J

更新日期：1988-06-01 00:00:00

abstract：:Experimental hyperphenylalaninemia has been induced in 5-day-old chicks by dietary treatments with phenylalanine and alpha-methylphenylalanine. An increase of nearly 8-fold in plasma Phe/Tyr ratio was found after 4 days of supplementation the standard diet with 5% phenylalanine plus 0.4% alpha-methylphenylalanine. The...

journal_title：Neurochemical research

authors： Castillo M,Zafra MF,Garcia-Peregrin E

更新日期：1988-06-01 00:00:00

abstract：:Protein kinase C has recently attracted considerable attention because of its importance in the control of cell division, cell differentiation, and signal transduction across the cell membrane. The activity of this enzyme is altered by several lipids such as diacylglycerol, free fatty acids, lipoxins, gangliosides, an...

journal_title：Neurochemical research

authors： Farooqui AA,Farooqui T,Yates AJ,Horrocks LA

更新日期：1988-06-01 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

authors： Detskey PZ,Bigbee JW,DeVries GH

更新日期：1988-05-01 00:00:00

abstract：:The presence and specificity of insulin receptors was investigated in culture cells obtained from 15-16 days old embryonic mouse cerebra. Developmental studies suggested that the maximum insulin binding occurred at about 11 days in vitro (DIV). Scatchard analysis of binding data revealed two types of binding sites. On...

journal_title：Neurochemical research

authors： Shanker G,Pieringer RA

更新日期：1988-05-01 00:00:00

abstract：:A phosphoinositide-linked peptide response in cultured rat astrocytes was studied by measuring the accumulation of [3H]inositol phosphates in the presence of lithium. Cultures derived from cortex, cerebellum and spinal cord each showed a unique pattern or degree of stimulation to a panel of neuropeptides. Cortical and...

journal_title：Neurochemical research

authors： Cholewinski AJ,Hanley MR,Wilkin GP

更新日期：1988-04-01 00:00:00

abstract：:The concentrations of taurine in a number of brain regions and in other tissues of rhesus monkeys fed a taurine-free human infant formula for 3 months are substantially lower than in similar monkeys fed the same formula supplemented with taurine. Activities of enzymes involved in taurine biosynthesis were not differen...

journal_title：Neurochemical research

authors： Sturman JA,Messing JM,Rossi SS,Hofmann AF,Neuringer MD

更新日期：1988-04-01 00:00:00

abstract：:An in vitro model of anoxia-induced brain damage was utilized to help elucidate the biochemical basis of cell damage due to reduced oxygen availability. Previous studies suggest that anoxia-induced damage may vary presynaptically, post-synaptically or in the cell body. Thus, the consequences of an anoxic treatment inc...

journal_title：Neurochemical research

authors： Gibson GE,Freeman GB,Mykytyn V

更新日期：1988-04-01 00:00:00

abstract：:The standard ELISA technique was improved for the detection of antigalactocerebroside antibody in biological fluid. Mouse monoclonal antigalactocerebroside antibody was used to demonstrate specificity and sensitivity of the technique. After optimization of the assay, the usefulness of this measurement for the evaluati...

journal_title：Neurochemical research

authors： Ichioka T,Uobe K,Stoskopf M,Kishimoto Y,Tennekoon G,Tourtellotte WW

更新日期：1988-03-01 00:00:00

abstract：:The MAO inhibitor phenelzine (PLZ) at a dose of 25 mg/kg does not affect the behavior of rats. In contrast, the equivalent dose of a deuterated analog (alpha, alpha, beta, beta-tetradeutero-PLZ, d4PLZ) elicits a biphasic behavioral syndrome in rats. In an attempt to correlate changes in cerebral monoamines with behavi...

journal_title：Neurochemical research

authors： Dewar KM,Dyck LE,Durden DA,Boulton AA

更新日期：1988-02-01 00:00:00

abstract：:A hemagglutinating activity was detected in a synaptic vesicle-enriched fraction prepared from adult rat brain, using trypsinized glutaraldehyde-fixed rabbit erythrocytes. The specific activity of the fraction, in two series of experiments, was 7.5 and 16-fold higher than in the other subcellular fractions. The activi...

journal_title：Neurochemical research

authors： Popoli M,Mengano A

更新日期：1988-01-01 00:00:00

abstract：:Glutamine synthetase (GS) from the chick brain was purified to apparent homogeneity by ammonium sulfate fractionation followed by affinity chromatography, electrofocusing and Sephadex G-150 chromatography. The purified enzyme showed a single band on sodium dodecyl sulfate analysis in polyacrylamide gel. By sedimentati...

journal_title：Neurochemical research

authors： Tholey G,Bloch S,Ledig M,Mandel P,Wedler F

更新日期：1987-11-01 00:00:00

abstract：:Selective and limited proteolysis is a key step in the post-translational modification of peptide hormone precursors. This process appears to involve a proteolytic machinery including highly specific endoproteases. Some of the enzyme systems possibly involved in the processing of pro-neuropeptides will be described an...

journal_title：Neurochemical research

authors： Gluschankof P,Cohen P

更新日期：1987-10-01 00:00:00

abstract：:Ciliary ganglion neurons and nonneurons can be separated from each other, based on the greater adhesivity of the nonneurons to untreated tissue culture plastic in the presence of serum. When the separation was carried out in the presence of Serum Plus (a commercially available supplemented serum), two populations of n...

journal_title：Neurochemical research

authors： Needels DL,Nieto-Sampedro M,Cotman CW

更新日期：1987-10-01 00:00:00

abstract：:We examined the effects of small unilamellar vesicles composed of dipalmitoylphosphatidylcholine on rat cerebral cortical [3H]acetylcholine release. Synaptosomes from this region were loaded with the labeled transmitter, and then incubated with the lipid (0-6 mg/ml) for specified intervals before adding various secret...

journal_title：Neurochemical research

authors： Bottiglieri DF,Meyer EM

更新日期：1987-08-01 00:00:00

abstract：:The oxidation of pyruvate is mediated by the pyruvate dehydrogenase complex (PDHC; EC 1.2.4.1, EC 2.3.1.12 and EC 1.6.4.3) whose catalytic activity is influenced by phosphorylation and by product inhibition. 2-Oxoglutarate and 3-hydroxybutyrate are readily utilized by brain mitochondria and inhibit pyruvate oxidation....

journal_title：Neurochemical research

authors： Lai JC,Sheu KF

更新日期：1987-08-01 00:00:00

abstract：:Attempts were made to solubilize acetylcholinesterase (AChE) from microsomal membranes isolated from rabbit white muscle. The preparative procedure included a step in which the microsomes were incubated in a solution containing high salt concentration (0.6 M KCl). About 15% of the total enzyme activity could be solubi...

journal_title：Neurochemical research

authors： Muñoz-Delgado E,Vidal CJ

更新日期：1987-07-01 00:00:00

abstract：:Endogenous and xenobiotic sulphur-containing convulsant and non-convulsant compounds containing structural moieties of, or bearing a structural resemblance to, GABA and homocysteine were tested in binding studies for their potency in displacing the GABA-mimetic [3H]muscimol from specific, high-affinity sites (Kd = 3.6...

journal_title：Neurochemical research

authors： Egbuta JO,Griffiths R

更新日期：1987-07-01 00:00:00