abstract：:A decline in the calcium-dependent release of neurotransmitters appears to underlie the decreased neuronal function that accompanies reduced oxygen tensions (hypoxia). To determine if alterations in calcium uptake are primary to these changes, synaptosomal calcium uptake was measured in the presence of 100%, 2.5%, or ...

journal_title：Journal of neurochemistry

authors： Peterson C,Gibson GE

更新日期：1984-01-01 00:00:00

abstract：:The characteristics of spiperone inhibition of [3H]5-hydroxytryptamine [(3H]5-HT; [3H]serotonin) binding were examined in dorsal (DH) and ventral (VH) hippocampus, corpus striatum (CS) or caudate nucleus (CN), and frontal cortex (FC) in the rabbit, guinea pig, and cat. Some of the properties of spiperone inhibition of...

journal_title：Journal of neurochemistry

authors： Schnellmann RG,Waters SJ,Nelson DL

更新日期：1984-01-01 00:00:00

abstract：:The metabolism of 6,7-dihydroxy (catecholic)-1,2,3,4-tetrahydroisoquinolines (TIQs) is of interest because the heterocyclic substances may form in mammals normally or during certain disease via condensations of catecholamines (CAs) with aldehydes or alpha-keto acids. With a specific capillary gas chromatography proced...

journal_title：Journal of neurochemistry

authors： Collins MA,Origitano TC

更新日期：1983-12-01 00:00:00

abstract：:In one 21-week-old fetus with prenatally diagnosed metachromatic leukodystrophy, galactolipid contents were determined in the forebrain cortex, cerebellum, brainstem, spinal cord, and kidney and compared to an appropriate control. Spinal cord and kidney showed the highest sulfatide accumulation as a consequence of def...

journal_title：Journal of neurochemistry

authors： Baier W,Harzer K

更新日期：1983-12-01 00:00:00

abstract：:PK 11195 [1-(2-chlorophenyl)-N-methyl-N-(1-methylpropyl)-3-isoquinolinecarboxamide] is a new ligand for the "peripheral-type" benzodiazepine binding sites, chemically unrelated to benzodiazepines. It displaces with a very high potency (IC50 congruent to 10(-9) M) [3H]-RO5-4864 (a benzodiazepine which specifically labe...

journal_title：Journal of neurochemistry

authors： Benavides J,Quarteronet D,Imbault F,Malgouris C,Uzan A,Renault C,Dubroeucq MC,Gueremy C,Le Fur G

更新日期：1983-12-01 00:00:00

abstract：:Microvessels were isolated from canine cerebral cortex, and the composition of the endothelial cell membrane was investigated. Endothelial cell membranes were separated from the surrounding basement membrane, solubilized, and subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis in 12% gels. Staining ...

journal_title：Journal of neurochemistry

authors： Lidinsky WA,Drewes LR

更新日期：1983-11-01 00:00:00

abstract：:The isolated neurointermediate lobe (NIL) of the rat hypophysis accumulates [3H]dopamine from the incubation medium. Column chromatographic analysis showed that 92% of the tissue radioactivity was contained in the catecholamine fraction. [3H]Dopamine represented 70% and [3H]noradrenaline 30% of the [3H]catecholamines....

journal_title：Journal of neurochemistry

authors： Racké K,Muscholl E

更新日期：1983-11-01 00:00:00

abstract：:The presence of a [3H]muscimol binding site on the purified benzodiazepine receptor was demonstrated. The purified protein was apparently homogeneous as shown by sodium dodecyl sulfate polyacrylamide gel electrophoresis (stained with silver), with a molecular weight of 60,000 +/- 3000. The benzodiazepine binding sites...

journal_title：Journal of neurochemistry

authors： Martini C,Rigacci T,Lucacchini A

更新日期：1983-10-01 00:00:00

abstract：:Rats fasted overnight were allowed to consume single meals containing 0, 18, or 40% protein or continued to fast; after 2 h, brains and sera were taken and assayed for various amino acids. In general, serum levels of most amino acids were reduced by the 0% protein meal and elevated by the high-protein meal when compar...

journal_title：Journal of neurochemistry

authors： Glaeser BS,Maher TJ,Wurtman RJ

更新日期：1983-10-01 00:00:00

abstract：:Microtubule-associated proteins (MAPs) were phosphorylated by a Ca2+- and calmodulin-dependent protein kinase from rat brain cytosol. The maximal amount of phosphate incorporated into MAPs was 25 nmol of phosphate/mg protein. A Ka value of the enzyme for calmodulin was 57.0 nM, with MAPs as substrates. Among MAPs, MAP...

journal_title：Journal of neurochemistry

authors： Yamamoto H,Fukunaga K,Tanaka E,Miyamoto E

更新日期：1983-10-01 00:00:00

abstract：:Adenosine uptake by cerebral smooth muscle cells is a carrier-mediated process. The Km value for adenosine uptake is 10.0 microM and the Vmax is 0.95 nmol/min-mg cell protein. This uptake system is inhibited by the adenosine analog 2-chloroadenosine at low adenosine concentrations. These results prove the existence of...

journal_title：Journal of neurochemistry

authors： Beck DW,Vinters HV,Moore SA,Hart MN,Cancilla PA

更新日期：1983-10-01 00:00:00

abstract：:The question of developmental relationships amongst myelin-related membranes in subfractions of myelinating mouse brain (15 days) was investigated by a time-staggered double isotope protocol using [3H]leucine and [14C]leucine. Preliminary results are interpreted and discussed in the context of a mathematical conceptua...

journal_title：Journal of neurochemistry

authors： Pereyra PM,Braun PE,Greenfield S,Hogan EL

更新日期：1983-10-01 00:00:00

abstract：:35SO4-labeled fast-transported proteins of bullfrog dorsal root ganglion neurons were separated by two-dimensional gel electrophoresis, and their mobilities were compared to similar species labeled with [3H]mannose or [3H]fucose. Fluorography revealed regions of poorly resolved, high molecular weight material, likely ...

journal_title：Journal of neurochemistry

authors： Stone GC,Hammerschlag R,Bobinski JA

更新日期：1983-10-01 00:00:00

abstract：:Rat brain benzodiazepine receptors have been solubilized by means of the zwitterionic detergent CHAPS under conditions in which the GABA stimulation of [3H]flunitrazepam binding to the benzodiazepine receptors is maintained intact. This stimulation is partially or totally abolished when using other conventional deterg...

journal_title：Journal of neurochemistry

authors： Mernoff ST,Cherwinski HM,Becker JW,de Blas AL

更新日期：1983-09-01 00:00:00

abstract：:The adenylate cyclase activity of rat hippocampal plasma membranes can be stimulated by vasoactive intestinal polypeptide (VIP). Low concentrations (10(-9) to 19(-7) M) of 5'-guanylyl-imido diphosphate (GppNHp) evoke a transient inhibition of the enzyme, which is followed by stimulation with increasing GppNHp concentr...

journal_title：Journal of neurochemistry

authors： Girardot JM,Kempf J,Cooper DM

更新日期：1983-09-01 00:00:00

abstract：:This study examined changes in composition and concanavalin A (Con A) binding of axonally transported glycoproteins and their pronase-generated glycopeptides in regenerating garfish olfactory nerve. A previous study had demonstrated a regeneration-related increase in the proportion of [3H]glucosamine label in lower-mo...

journal_title：Journal of neurochemistry

authors： Cole GJ,Elam JS

更新日期：1983-09-01 00:00:00

abstract：:The time course of Ca2+-dependent [3H]acetylcholine [( 3H]ACh) release and inactivation of 45Ca2+ entry were examined in rat brain synaptosomes depolarized by 45 mM [K+]0. Under conditions where the intrasynaptosomal stores of releasable [3H]ACh were neither exhausted nor replenished in the course of stimulation, the ...

journal_title：Journal of neurochemistry

authors： Suszkiw JB,O'Leary ME

更新日期：1983-09-01 00:00:00

abstract：:Modulation of [3H]muscimol binding by picrotoxin, pentobarbitone, and etomidate was investigated in rat cerebellar and cerebral cortical membranes. In cerebellum, at 37 degrees C in the presence of chloride ions (150 mM), picrotoxin and picrotoxinin decreased specific [3H]muscimol binding to 43 +/- 3% of control, with...

journal_title：Journal of neurochemistry

authors： Quast U,Brenner O

更新日期：1983-08-01 00:00:00

abstract：:A neutral, mannose-rich, concanavalin A (Con A)-binding glycopeptide fraction was obtained by proteolytic digestion of defatted beef brain tissue. Hydrazinolysis followed by gel filtration of the reaction products provided three oligosaccharides. A portion of each oligosaccharide was treated by exhaustive digestion wi...

journal_title：Journal of neurochemistry

authors： Somawardhana CW,Brunngraber EG

更新日期：1983-08-01 00:00:00

abstract：:Nuclei from the cerebral cortices of animals of different ages were separated into neuronal and neuroglial populations. Nuclei from cerebellar neurons were also studied. Using the enzyme micrococcal nuclease as a probe for chromatin structure, we found that the DNA from both neuronal preparations showed a decreased su...

journal_title：Journal of neurochemistry

authors： Berkowitz EM,Sanborn AC,Vaughan DW

更新日期：1983-08-01 00:00:00

abstract：:Perilymph, which bathes the sensory cells of the cochlea, was collected from guinea pigs exposed to noise and analyzed via two cation-exchange HPLC procedures with fluorescence detection, resolving 51 and 81 primary-amine compounds, respectively, at a sensitivity limit of 0.1 pmol relative to leucine. During a first p...

journal_title：Journal of neurochemistry

authors： Drescher MJ,Drescher DG,Medina JE

更新日期：1983-08-01 00:00:00

abstract：:N alpha-Acyl amino acid releasing enzyme (NAARE), an enzyme cleaving acetylMet-Ala at the Met-Ala bond was purified from rat brain cytosol to apparent homogeneity by salt precipitation, gel filtration, and several steps of ion exchange. Levels of NAARE exceeded acylase measured with acetylmethionine in all brain regio...

journal_title：Journal of neurochemistry

authors： Marks N,Lo ES,Stern F,Danho W

更新日期：1983-07-01 00:00:00

abstract：:The oxidation of differentially labelled glucose, pyruvate and glutamate in brain slices from rats aged 20 days to 26 months has been studied and the partition of the glucose used into the glycolytic-tricarboxylic acid cycle pathway, the pentose phosphate pathway and the glutamate-GABA shunt has been calculated. Over ...

journal_title：Journal of neurochemistry

authors： Zubairu S,Hothersall JS,El-Hassan A,McLean P,Greenbaum AL

更新日期：1983-07-01 00:00:00

abstract：:Compound AF64A, ethylcholine mustard aziridinium ion (0.4-8 nmol) was stereotaxically administered into rat dorsal hippocampus, and neurochemical changes were determined 5 days later. AF64A treatment, over an almost 10-fold dose range, resulted in a significant (up to 70%) decline in choline acetyltransferase activity...

journal_title：Journal of neurochemistry

authors： Mantione CR,Zigmond MJ,Fisher A,Hanin I

更新日期：1983-07-01 00:00:00

abstract：:In frozen-thawed repeatedly washed rat cortical synaptic membranes, Ca2+ (1-5 mM) decreased the binding of [3H]muscimol whereas it increased the binding of [3H]gamma-aminobutyric acid (GABA). However, the binding of [3H]GABA was decreased by the same extent as the binding of [3H]muscimol when the membranes were incuba...

journal_title：Journal of neurochemistry

authors： Corda MG,Guidotti A

更新日期：1983-07-01 00:00:00

abstract：:The effects of temperature on the interaction of various ligands with the benzodiazepine receptor were studied in rat brain membrane preparations. The affinities of all ligands studied were reduced on raising the temperature from 4 to 37 degrees C. The variation of affinity constant with temperature deviated from the ...

journal_title：Journal of neurochemistry

authors： Doble A

更新日期：1983-06-01 00:00:00

abstract：:A study was made of the actions of the excitant neurotoxin, kainic acid, on the uptake and the release of D-[2,3-3H]aspartate (D-ASP) in slices of guinea pig cerebral neocortex and striatum. The slices took up D-ASP, reaching concentrations of the amino acid in the tissue which were 14-23 times that in the medium. Sub...

journal_title：Journal of neurochemistry

authors： Potashner SJ,Gerard D

更新日期：1983-06-01 00:00:00

abstract：:An aminopeptidase with specificity directed toward peptides with acidic N-terminal amino acid residues has been isolated from mouse brain cytosol. Purification by ion-exchange chromatography and gel filtration resulted in an enzyme that hydrolyzed aspartyl-phenylalanine methyl ester at a rate of 13.2 mumols/min/mg pro...

journal_title：Journal of neurochemistry

authors： Kelly JA,Neidle EL,Neidle A

更新日期：1983-06-01 00:00:00

abstract：:The present paper describes the isolation and characterization of a clone of hybrid myelomas (3-E7) secreting a mouse monoclonal antibody to beta-endorphin. An examination of its specificity against a series of human beta-lipotropin fragments and other opioid peptides revealed that the N-terminus portion of beta-endor...

journal_title：Journal of neurochemistry

authors： Gramsch C,Meo T,Riethmüller G,Herz A

更新日期：1983-05-01 00:00:00

abstract：:Primary astrocyte cultures from neonatal rat brains show uptake of [3H]norepinephrine ([3H]NE). This uptake has a high-affinity component with an apparent Km of approximately 3 X 10(-7) M. At 10(-7) M [3H]NE both the initial rate of uptake and steady-state content of [3H]NE is inhibited by up to 95% by omission of ext...

journal_title：Journal of neurochemistry

authors： Kimelberg HK,Pelton EW 2nd

更新日期：1983-05-01 00:00:00

abstract：:In vitro, the transport into and release of [3H]deoxycytidine from the isolated choroid plexus, the anatomical locus of the blood-cerebrospinal fluid barrier, were studied separately. By use of the ability of nitrobenzylthioinosine (NBTI) to inhibit deoxycytidine efflux from choroid plexus, the transport of 1 microM [...

journal_title：Journal of neurochemistry

authors： Spector R,Huntoon S

更新日期：1983-05-01 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

authors： Cambier D,Alliot F,Pessac B

更新日期：1983-05-01 00:00:00

abstract：:Synaptosomes and mitochondria were isolated from the brains of warm-adapted, hibernating, and cold-acclimated golden hamsters (Mesocricetus auratus). Lipid extracts of these subcellular fractions were prepared and assayed for plasmenylethanolamine (ethanolamine plasmalogen) and cholesterol levels. The ganglioside comp...

journal_title：Journal of neurochemistry

authors： Demediuk P,Moscatelli EA

更新日期：1983-04-01 00:00:00

abstract：:The levels of hexokinase, as well as those of the cytoplasmic glycolytic enzyme lactate dehydrogenase and the mitochondrial tricarboxylic acid cycle enzymes fumarase and citrate synthase, have been determined in whole rat brain and in neuronal, astrocytic, and oligodendroglial fractions isolated from rat brain. Compar...

journal_title：Journal of neurochemistry

authors： Snyder CD,Wilson JE

更新日期：1983-04-01 00:00:00

abstract：:Electrophorus electroplax microsomes were examined for Ca2+- and Mg2+-dependent ATPase activity. In addition to the previously reported low-affinity ATPase, a high-affinity (Ca2+,Mg2+)-ATPase was found. At low ATP and Mg2+ concentrations (200 microM or less), the high-affinity (Ca2+,Mg2+)-ATPase exhibits an activity o...

journal_title：Journal of neurochemistry

authors： Amende LM,Chock SP,Albers RW

更新日期：1983-04-01 00:00:00

abstract：:The processes of acetylation, phosphorylation, and methylation of nuclear proteins in cerebral hemispheres of 10- and 30-day-old rats were investigated. The experiments were carried out in vitro by measuring the incorporation of labeled precursors into histones and nonhistone chromosomal proteins (NHP) extracted from ...

journal_title：Journal of neurochemistry

authors： Serra I,Kamiyama M,Hashim GA,Ragonese P,Giuffrida AM

更新日期：1983-03-01 00:00:00

abstract：:Regional distribution of endogenous gamma-aminobutyric acid (GABA), its synthesizing enzyme, glutamic acid decarboxylase (GAD), and metabolic enzyme, GABA transaminase (GABA-T), were determined in the intestinal tract of guinea pigs and cats and the findings compared with the number of ganglion cells in Auerbach's ple...

journal_title：Journal of neurochemistry

authors： Miki Y,Taniyama K,Tanaka C,Tobe T

更新日期：1983-03-01 00:00:00

abstract：:The ability of catecholestrogens to induce cytosolic progestin binding sites in the hypothalamus, pituitary gland, and uterus of ovariectomised-adrenalectomised rats was demonstrated by the increase in high-affinity [3H]promegestone binding sites (KD 1.39, 0.50, and 0.54 nM, respectively) following a single subcutaneo...

journal_title：Journal of neurochemistry

authors： Kirchhoff J,Reinhardt W,Grünke W,Ghraf R,Ball P,Knuppen R

更新日期：1983-02-01 00:00:00

abstract：:The distribution of basal and of H2O2-stimulated cyclooxygenase activity in the primary fractions of rat brain homogenates and in the subfractions of crude mitochondrial fraction was studied. For comparison, the localization of H2O2-generating monoamine oxidase (MAO) as well as that of the mitochondrial marker succina...

journal_title：Journal of neurochemistry

authors： Seregi A,Serfözö P,Mergl Z

更新日期：1983-02-01 00:00:00

abstract：:The effects of ATP and taurine on the kinetics of calcium uptake in rat retinal membrane preparations were determined. ATP increased calcium uptake at low calcium ion concentrations. Addition of ATP plus taurine further increased calcium uptake. Cooperative relationships were observed for calcium uptake in the absence...

journal_title：Journal of neurochemistry

authors： Lombardini JB

更新日期：1983-02-01 00:00:00