abstract：:At 1, 2, and 4 weeks after unilateral premotor and motor cortex ablation in rats, a significant and lasting decrease in glutamate levels in the ipsilateral versus contralateral striatum was observed. A significant corresponding fall in aspartate was seen only after 1 week. In contrast, there was a large increase in th...

journal_title：Journal of neurochemistry

authors： Hassler R,Haug P,Nitsch C,Kim JS,Paik K

更新日期：1982-04-01 00:00:00

abstract：:gamma-Aminobutyric acid (GABA) concentrations were measured in CSF specimens from two large groups of control subjects, one without neurological or psychiatric disease, and one with a variety of neurological disorders not known to involve altered GABAergic function in brain. CSF GABA was also measured in patients with...

journal_title：Journal of neurochemistry

authors： Perry TL,Hansen S,Wall RA,Gauthier SG

更新日期：1982-03-01 00:00:00

abstract：:Chromogranin A and two other proteins (A1 and A2) of the soluble proteins of bovine chromaffin granules were isolated by extraction from polyacrylamide gels after electrophoresis. The carbohydrate content of these proteins was 5%, with galactose, N-acetylgalactosamine, and sialic acid as the main sugars. Membranes of ...

journal_title：Journal of neurochemistry

authors： Fischer-Colbrie R,Schachinger M,Zangerle R,Winkler H

更新日期：1982-03-01 00:00:00

abstract：:Glycerol phosphate dehydrogenase (GPDH), glucose-6-phosphate dehydrogenase (G6PDH), and lactate dehydrogenase (LDH) activities were determined in oligodendrocytes, neurons, and astrocytes isolated from the brains of developing rats. The activity of each enzyme was significantly lower in both neurons and astrocytes tha...

journal_title：Journal of neurochemistry

authors： Cammer W,Snyder DS,Zimmerman TR Jr,Farooq M,Norton WT

更新日期：1982-02-01 00:00:00

abstract：:Slices of rabbit caudate and hypothalamus take up and accumulate [3H]imipramine. In superfused slices of both structures electrical stimulation or exposure to tyramine failed to release recently taken up [3H]imipramine. Depolarization by exposure to 30--60 mM-potassium caused only a small release of [3H]imipramine tha...

journal_title：Journal of neurochemistry

authors： Langer SZ,Galzin AM,Kamal LA

更新日期：1982-02-01 00:00:00

abstract：:Guanidino compounds in CSF of 57 human subjects were determined fluorometrically after reaction with phenanthrenequinone in alkali solution, using HPLC. Creatinine (65.2 +/- 13.4 nmol/ml), arginine (24.7 +/- 6.4 nmol/ml), and homoarginine (0.7 +/- 0.3 nmol/ml) were found in all subjects. Trace amounts of guanidinosucc...

journal_title：Journal of neurochemistry

authors： Mori A,Watanabe Y,Fujimoto N

更新日期：1982-02-01 00:00:00

abstract：:In vitro, the transport of [14C]nicotine into the isolated choroid plexus, the anatomical locus of the blood--CSF barrier, was studied. The isolated rabbit choroid plexus accumulated [14C]nicotine by two processes: an active saturable transport process and a nonsaturable process. The [14C]nicotine accumulation process...

journal_title：Journal of neurochemistry

authors： Spector R,Goldberg MJ

更新日期：1982-02-01 00:00:00

abstract：:A mass fragmentographic method for the determination of trace amounts of amino acid neurotransmitter candidates from brain perfusates is described. The analytical procedure includes the measurements of glycine, beta-alanine, gamma-aminobutyric acid, proline, aspartic acid, and glutamic acid; alpha-alanine, leucine, an...

journal_title：Journal of neurochemistry

authors： Wolfensberger M,Amsler U

更新日期：1982-02-01 00:00:00

abstract：:Three forms of acetylcholinesterase (AChE) have been reported: the 4S, 10S, and 16S forms. It was suggested previously that 16S AChE is characteristic of the end-plate region; subsequently its presence has also been demonstrated in sciatic nerve, vagus nerve, several nerve trunks, cardiac atria, and distal ileum of ra...

journal_title：Journal of neurochemistry

authors： Kása P,Rakonczay Z

更新日期：1982-01-01 00:00:00

abstract：:Peptide extracts of rat brain powerfully inhibited the cyclic AMP phosphodiesterase activity of rat brain homogenate. Similar extracts of ox brain showed comparable although less potent activity. Preliminary investigation of the physicochemical properties of brain extracts indicated that the rat brain extract containe...

journal_title：Journal of neurochemistry

authors： Collier HO,Butt NM,Saeed SA

更新日期：1982-01-01 00:00:00

abstract：:Dermorphin and its Hyp6 analogue are opiate-like heptapeptides originally discovered in frog skin and characterized by the presence of a D-Ala2 residue in their sequence. They were assayed for their capacity to compete with [3H]Leu-enkephalin for binding to opioid receptors in membranes of neuroblastoma x glioma hybri...

journal_title：Journal of neurochemistry

authors： Glaser T,Hübner K,de Castiglione R,Hamprecht B

更新日期：1981-12-01 00:00:00

abstract：:We previously reported that nerve terminals and glial cells lack an active uptake system capable of terminating transmitter action of substance P (SP). In the present study, we demonstrated the existence of an active uptake system for SP carboxy-terminal heptapeptide, (5-11)SP. When the slices from either rat brain or...

journal_title：Journal of neurochemistry

authors： Nakata Y,Kusaka Y,Yajima H,Segawa T

更新日期：1981-12-01 00:00:00

abstract：:The effect of 6-aminonicotinamide (6AN) treatment on the activities of alternative pathways of glucose metabolism in 20-day-old rat brain was evaluated by measurements of yields of 14CO2 from glucose labeled with 14C on carbons 1, 2, 3 + 4, or 6 and uniformly labeled glucose, and from the incorporation of 14C from spe...

journal_title：Journal of neurochemistry

authors： Hothersall JS,Zubairu S,McLean P,Greenbaum AL

更新日期：1981-12-01 00:00:00

abstract：:Synaptosomes (vesicles of nerve endings) isolated from rabbit brain were studied as a model system for the uptake of inorganic phosphate. The phosphate uptake showed a sodium-dependent, saturable component with a Kt of 0.29 mM. The sodium-dependent component was larger at pH 6 than at pH 7.4 or 8. Application of potas...

journal_title：Journal of neurochemistry

authors： Salamin A,Deshusses J,Straub RW

更新日期：1981-12-01 00:00:00

abstract：:A specific and sensitive gas chromatographic-mass spectrometric assay for measurement of normetanephrine (NMN) in different rat brain regions is presented. The results show that hypothalamus contains the highest concentrations of the norepinephrine metabolite. An increase of NMN concentrations has been detected in ani...

journal_title：Journal of neurochemistry

authors： Mocchetti I,De Angelis L,Racagni G

更新日期：1981-12-01 00:00:00

abstract：:Antisera raised to the 68,000, 145,000 and 200,000 molecular weight subunits of rat neurofilaments were used for immunochemical staining of polypeptides separated by one- and two-dimensional gel electrophoresis. It was found that each antiserum reacts intensely with its corresponding neurofilament subunit and weakly w...

journal_title：Journal of neurochemistry

authors： Autilio-Gambetti L,Velasco ME,Sipple J,Gambetti P

更新日期：1981-11-01 00:00:00

abstract：:Regulation of muscarinic acetylcholine receptor concentration by receptor activity in neuron-like NG108-15 hybrid cells is a highly specific process. Receptor levels, monitored by binding of [3H]quinuclidinyl benzilate ([3H]QNB), decreased 50--75% following 24-h incubation of cells with muscarinic agonists, but none o...

journal_title：Journal of neurochemistry

authors： Siman RG,Klein WL

更新日期：1981-11-01 00:00:00

abstract：:The regional distribution and acylation of intraventricularly injected [14C]cadaverine was studied in the rat brain over a 48-h period. The concentrations of labeled cadaverine and its acyl derivatives, N-monoacetylcadaverine and N-monopropionylcadaverine, were determined in the telencephalon, striatum, hypothalamus, ...

journal_title：Journal of neurochemistry

authors： Salzman SK,Stepita-Klauco M

更新日期：1981-11-01 00:00:00

abstract：:Parameters affecting the binding of [3H]glycine to membrane fractions isolated from the cerebral cortex, midbrain, cerebellum, medulla oblongata, and spinal cord of the rat were investigated in a Na+-free medium. A [3H]glycine binding assay was established in which the binding was specific, saturable, pH-sensitive, an...

journal_title：Journal of neurochemistry

authors： Kishimoto H,Simon JR,Aprison MH

更新日期：1981-10-01 00:00:00

abstract：:A distinctive autofluorescence under ultraviolet light has been observed in the cerebral cortex of young ruminants suffering from cerebrocortical necrosis. The fluorescence is intimately connected with structural elements of the brain and cannot be extracted into solvents by normal procedures. The work presented here ...

journal_title：Journal of neurochemistry

authors： Edwin EE,Jackman R

更新日期：1981-10-01 00:00:00

abstract：:Recovery of AChE activity in the motor end plate region and end plate free region of the rat diaphragm was studied after irreversible inhibition by soman. Recovery was slow during the first 2 days and only 4 S and 10 S molecular forms of AChE were present in the end plate region. However, cytochemical evidence indicat...

journal_title：Journal of neurochemistry

authors： Grubić Z,Sketelj J,Klinar B,Brzin M

更新日期：1981-10-01 00:00:00

abstract：:Brain gangliosides from four vertebrate classes (fish, amphibia, aves, and mammalia) were studied by patterns generated with the use of two-dimensional thin-layer chromatography. In an effort to retain possible alkalilabile gangliosides, samples were not base-hydrolyzed. Resultant chromatograms revealed complex patter...

journal_title：Journal of neurochemistry

authors： Hunter GD,Wiegant VM,Dunn AJ

更新日期：1981-10-01 00:00:00

abstract：:The activities of choline acetyltransferase (CAT) and glutamic acid decarboxylase (GAD), markers of cholinergic and GABAergic terminals, were measured in growing and adult Gunn rats, which possess an autosomal recessive gene for jaundice or kernicterus. In the olfactory tubercle, hippocampus, neostriatum, thalamus, an...

journal_title：Journal of neurochemistry

authors： Ohno T

更新日期：1981-10-01 00:00:00

abstract：:In the present study, the properties, such as pH optima, detergent requirement, and effects of various lipids, of cholesterol ester hydrolase in human cerebrospinal fluid (CSF) were examined, and the activity levels of the enzyme in CSF from multiple sclerosis (MS) patients and non-MS individuals were compared. Our da...

journal_title：Journal of neurochemistry

authors： Johnson RC,Shah SN

更新日期：1981-09-01 00:00:00

abstract：:Fever is thought to be mediated by leukocytic pyrogen (LP), a polypeptide synthesized by phagocytic leukocytes and which is responsible for the upwards resetting of the hypothalamic thermostat. In an attempt to study the effects of LP directly on brain tissue, purified human LP was incubated with rabbit brain slices i...

journal_title：Journal of neurochemistry

authors： Dinarello CA,Bernheim HA

更新日期：1981-09-01 00:00:00

abstract：:The kinetic properties of soluble tyrosine hydroxylase from rat striatum and the activation of the enzyme by the polyanion heparin were assessed as a function of the monovalent cations K+, Na+, tetramethylammonium (TMA+), and Tris. Substitution of K+ or Na+ for TMA+ or Tris can alter the kinetic properties of tyrosine...

journal_title：Journal of neurochemistry

authors： Kuczenski R

更新日期：1981-09-01 00:00:00

abstract：:Pumiliotoxins (PTX) A, B, and 251D, members of a new class of indolizidine alkaloids isolated from the skin of poison frogs of the family Dendrobatidae, inhibit Ca2+-ATPase activity in sarcoplasmic reticulum vesicles from frog and rat hind-limb muscles. PTX-B and PTX-A appear to be relatively specific inhibitors of Ca...

journal_title：Journal of neurochemistry

authors： Tamburini R,Albuquerque EX,Daly JW,Kauffman FC

更新日期：1981-09-01 00:00:00

abstract：:Evidence based on the ability to accumulate [3H]noradrenaline by a mechanism sensitive to desmethylimipramine suggests that there is a period of hyperinnervation of the cerebellum by noradrenergic fibres around the beginning of the second postnatal week. Different developmental profiles for specific noradrenaline upta...

journal_title：Journal of neurochemistry

authors： Waddington G,Banks P

更新日期：1981-09-01 00:00:00

abstract：:The development of the specific binding sites for L-[3H]glutamic acid (KD = 370 nM) and for [3H]kainic acid (KD = 39 nM) was studied in the rat cerebellum. Specific binding at both sites remains low during the first week after birth but increases markedly during the second and third weeks after birth, when glutamaterg...

journal_title：Journal of neurochemistry

authors： Slevin JT,Coyle JT

更新日期：1981-08-01 00:00:00

abstract：:GM1 ganglioside binding to the crude mitochondrial fraction of rat brain and its effect on (Na+, K+)-ATPase were studied, the following results being obtained: (a) the binding process followed a biphasic kinetics with a break at 50 nM-GM1; GM1 at concentrations below the break was stably associated, while over the bre...

journal_title：Journal of neurochemistry

authors： Leon A,Facci L,Toffano G,Sonnino S,Tettamanti G

更新日期：1981-08-01 00:00:00

abstract：:This paper describes a new, sensitive assay for dopamine-beta-hydroxylase (DBH) activity in human cerebrospinal fluid (CSF), serum and brain tissues by high performance liquid chromatography (HPLC) with electrochemical detection (ED). Dopamine (DA) was used as a substrate and was incubated under optimal conditions. No...

journal_title：Journal of neurochemistry

authors： Matsui H,Kato T,Yamamoto C,Fujita K,Nagatsu T

更新日期：1981-08-01 00:00:00

abstract：:The ability of cholinergic vesicles to incorporate acetylcholine (ACh) was studied using highly purified synaptic vesicles from Torpedo electric organ. Depleted vesicles were capable of rapidly taking up exogenous ACh. Evidence that this represented true incorporation was that labelled ACh comigrated with vesicular AT...

journal_title：Journal of neurochemistry

authors： Diebler MF,Morot-Gaudry Y

更新日期：1981-08-01 00:00:00

abstract：:Protein biosynthesis in the retina and fast axonal transport along the optic pathway were studied in rabbits in which diabetes had been experimentally induced. Retinal protein biosynthesis and axonal transport were significantly reduced in the diabetic rabbits, and the reduction was correlated to the severity of the d...

journal_title：Journal of neurochemistry

authors： Chihara E

更新日期：1981-07-01 00:00:00

abstract：:The cholesterol esterifying enzyme which incorporates exogenous free [1-14C]oleate into cholesteryl ester is present in rat sciatic endoneurium. Cholesterol esterification is optimal at pH 4.8. Exogenous ATP, CoA, and oleyl-CoA do not greatly affect its activity. Various detergents and bile salts are inhibitory. Enzym...

journal_title：Journal of neurochemistry

authors： Yao JK,Dyck PJ

更新日期：1981-07-01 00:00:00

abstract：:Ischemia, anoxia, and hypoxia of the brain have been shown to inhibit protein synthesis in the central nervous system. To obtain data on the changes in DNA-dependent RNA and DNA polymerase as they pertain specifically to neurons and glia, nuclear enriched neuronal and glial fractions were prepared, by sucrose-gradient...

journal_title：Journal of neurochemistry

authors： Gottlieb M,Chavko M,Marsala J

更新日期：1981-07-01 00:00:00

abstract：:The circadian rhythm of methionine S-adenosyltransferase, which catalyzes the formation of S-adenosylmethionine, a cosubstrate for melatonin in the pineal gland, follows the pattern of hydroxyindole-O-methyltransferase. Around the middle of the dark period, methionine S-adenosyltransferase and hydroxyindole-O-methyltr...

journal_title：Journal of neurochemistry

authors： Guchhait RB,Monjan AA

更新日期：1981-06-01 00:00:00

abstract：:Deacetylation of melatonin to 5-methoxytryptamine (5-MT) in vitro and in vivo was investigated in rat liver and brain tissue, using a gas chromatographic--mass spectrometric 5-MT assay method. In vitro incubation of liver but not brain (hypothalamic, Mesencephalic) slices with melatonin led to a concentration-dependen...

journal_title：Journal of neurochemistry

authors： Beck O,Jonsson G

更新日期：1981-06-01 00:00:00

abstract：:The nuclear mitochondrial and synaptosomal fractions of rat brain were each found to contain some 25-30% of the total aldehyde dehydrogenase activity. The cytoplasmic fraction had a very low total aldehyde dehydrogenase activity. There were differences in the distribution of the activity when different aldehydes were ...

journal_title：Journal of neurochemistry

authors： Koivula T,Turner AJ,Huttunen M,Koivusalo M

更新日期：1981-06-01 00:00:00

abstract：:The turnover of acetylcholine (ACh) in rat brain synaptosomes and its compartmentation in the labile bound and stable bound pools were investigated. The P(2) fraction from rat brain was subjected to three sequential incubations, each terminated by centrifugation followed by determination of ACh concentrations by gas c...

journal_title：Journal of neurochemistry

authors： Jope RS

更新日期：1981-05-01 00:00:00

abstract：:Adult rat cerebral cortex slices when incubated in media in increasing K+ concentrations, from 3 to 20 mM ("physiological" conditions), exhibited an increase of Ki+ and a decrease of Nai+ and Cli-. This phenomenon appeared at 30 days postnatally, which is fairly late during development. Over 20 mM-K+ ("pathological" c...

journal_title：Journal of neurochemistry

authors： Grisar T,Franck G

更新日期：1981-05-01 00:00:00