Highly sensitive assay for dopamine-beta-hydroxylase activity in human cerebrospinal fluid by high performance liquid chromatography-electrochemical detection: properties of the enzyme.

abstract：:The objective of this study was to examine the role of dopamine (DA) receptors in the nucleus accumbens (ACB) in controlling feedback regulation of mesolimbic somatodendritic DA release in the ventral tegmental area (VTA) of Wistar rats using ipsilateral dual-probe in vivo microdialysis. Perfusion of the ACB for 60 mi...

journal_title：Journal of neurochemistry

authors： Rahman S,McBride WJ

更新日期：2000-02-01 00:00:00

abstract：:K-252b is a kinase inhibitor structurally related to K-252a, which is known to abolish selectively the effects of nerve growth factor (NGF) on PC12 cells and PNS neurons. We tested whether K-252b, K-252a, and staurosporine, another related compound, are effective and selective inhibitors of NGF actions on CNS neurons....

journal_title：Journal of neurochemistry

authors： Knüsel B,Hefti F

更新日期：1991-09-01 00:00:00

abstract：:The neurosteroid allopregnanolone, a reduced metabolite of progesterone, induces anxiolytic effects by enhancing GABA(A) receptor function. Neuropeptide Y (NPY) and GABA are thought to interact functionally in the amygdala, and this interaction may be important in the regulation of anxiety. By using Y(1)R/LacZ transge...

journal_title：Journal of neurochemistry

authors： Ferrara G,Serra M,Zammaretti F,Pisu MG,Panzica GC,Biggio G,Eva C

更新日期：2001-10-01 00:00:00

abstract：:N-Methyl-D-aspartate (NMDA) receptors mediate increases in intracellular calcium that can be modulated by protein kinase C (PKC). As PKC modulation of NMDA receptors in neurons is complex, we studied the effects of PKC activation on recombinant NMDA receptor-mediated calcium rises in a nonneuronal mammalian cell line,...

journal_title：Journal of neurochemistry

authors： Grant ER,Bacskai BJ,Anegawa NJ,Pleasure DE,Lynch DR

更新日期：1998-10-01 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

authors： Rehavi M,Skolnick P,Brownstein MJ,Paul SM

更新日期：1982-04-01 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：:Ascorbate is an essential antioxidant in the CNS, localized predominantly in neuronal cytosol. Slices of mammalian brain rapidly lose ascorbate, however, when incubated in ascorbate-free media; brain slices also take up water and swell. Here we investigated water gain in coronal slices of rat forebrain incubated with ...

journal_title：Journal of neurochemistry

authors： Brahma B,Forman RE,Stewart EE,Nicholson C,Rice ME

更新日期：2000-03-01 00:00:00

abstract：:MDL 72145, (E)-2-(3',4'-dimethoxyphenyl)-3-fluoroallylamine hydrochloride, was designed and synthesised as a potential enzyme-activated irreversible inhibitor of monoamine oxidase (MAO). In vitro, the compound displayed time-dependent pseudo-first-order irreversible inhibitory characteristics with high selectivity for...

journal_title：Journal of neurochemistry

authors： Zreika M,McDonald IA,Bey P,Palfreyman MG

更新日期：1984-08-01 00:00:00

abstract：:Pro-thyrotropin-releasing hormone (proTRH) is the precursor to thyrotropin-releasing hormone (TRH; pGlu-His-Pro-NH2), the hypothalamic releasing factor that stimulates synthesis and release of thyrotropin from the pituitary gland. Five copies of the TRH progenitor sequence (Gln-His-Pro-Gly) and seven cryptic peptides ...

journal_title：Journal of neurochemistry

authors： Nillni EA,Friedman TC,Todd RB,Birch NP,Loh YP,Jackson IM

更新日期：1995-12-01 00:00:00

abstract：:To examine whether the mitogen-activated protein kinase (MAPK) cascade and phospholipase A2 (PLA2) are involved in the signal transduction mechanism of the opioid receptor, the delta-, mu-, and kappa-opioid receptors were stably expressed from cDNA in Chinese hamster ovary cells. Activation of the delta-, mu-, and kap...

journal_title：Journal of neurochemistry

authors： Fukuda K,Kato S,Morikawa H,Shoda T,Mori K

更新日期：1996-09-01 00:00:00

abstract：:Gs alpha, the GTP-binding protein that mediates receptor stimulation of adenylyl cyclase, exists in small (Gs alpha-S) and large (Gs alpha-L) molecular forms. Previous work has established that these Gs alpha isoforms are products of alternatively spliced Gs alpha pre-mRNA. The present work examined the splicing patte...

journal_title：Journal of neurochemistry

authors： Granneman JG,Bannon MJ

更新日期：1991-09-01 00:00:00

abstract：:The effects of the protein kinase inhibitor H-7 on early and delayed responses to nerve growth factor (NGF) were investigated in PC12 cells. H-7 reduced the NGF-induced expression of c-Fos in a dose-dependent manner without affecting the time course of c-Fos appearance. Conversely, H-7 potentiated delayed NGF effects,...

journal_title：Journal of neurochemistry

authors： Kahle P,Mangold M,Kuwahara T,Schubenel R,Hertel C

更新日期：1994-02-01 00:00:00

abstract：:This Editorial highlights an ingenious study by Li and Freeman published in this issue of J. Neurochem. Accurately knowing the brain extracellular levels of the two main substrates, that is, glucose and lactate, while a well-controlled and graded-stimulus is applied, might be extremely useful to finely understand how ...

journal_title：Journal of neurochemistry

authors： Leloup C

更新日期：2015-11-01 00:00:00

abstract：:Multiple lines of evidence implicate lysosomes in a variety of pathogenic events that produce neurodegeneration. Genetic mutations that cause specific enzyme deficiencies account for more than 40 lysosomal storage disorders. These mostly pre-adult diseases are associated with abnormal brain development and mental reta...

journal_title：Journal of neurochemistry

authors： Bahr BA,Bendiske J

更新日期：2002-11-01 00:00:00

abstract：:Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induc...

journal_title：Journal of neurochemistry

authors： Catania MV,Hollingsworth Z,Penney JB,Young AB

更新日期：1993-01-01 00:00:00

abstract：:The nervous system is frequently the site of symptomatic toxicity of antineoplastic agents. However, there is limited information about the differential vulnerability of neurons, astrocytes and glioma cells. We have analyzed the effects of four chemotherapeutic drugs (lomustine, cisplatin, topotecan and vincristine) o...

journal_title：Journal of neurochemistry

authors： Wick A,Wick W,Hirrlinger J,Gerhardt E,Dringen R,Dichgans J,Weller M,Schulz JB

更新日期：2004-12-01 00:00:00

abstract：:Calcium-activated neutral proteases (calpains) are regulated by specific endogenous protein inhibitors, the calpastatins, which are widely distributed in mammalian tissues. Calpastatins from different species or in various tissues from the same species exhibit considerable size heterogeneity on sodium dodecyl sulfate ...

journal_title：Journal of neurochemistry

authors： Mohan PS,Nixon RA

更新日期：1995-02-01 00:00:00

abstract：:Autophosphorylation of Ca2+/calmodulin-dependent protein kinase II (CaMKII) at Thr286 generates Ca2+-independent activity. As an initial step toward understanding CaMKII inactivation, protein phosphatase classes (PP1, PP2A, PP2B, or PP2C) responsible for dephosphorylation of Thr286 in rat forebrain subcellular fractio...

journal_title：Journal of neurochemistry

authors： Strack S,Barban MA,Wadzinski BE,Colbran RJ

更新日期：1997-05-01 00:00:00

abstract：:This study investigates the implication of mitochondria- and caspase-dependent pathways in the death of retinal neurones exposed to the neurosteroid pregnenolone sulfate (PS) shown to evoke apoptosis and contribute to amplification and propagation of excitotoxicity. After a brief PS challenge of intact retinas, caspas...

journal_title：Journal of neurochemistry

authors： Cascio C,Guarneri R,Russo D,De Leo G,Guarneri M,Piccoli F,Guarneri P

更新日期：2002-12-01 00:00:00

abstract：:Abstract Huntingtin is a large, multi-domain protein of unknown function in the brain. An abnormally elongated polyglutamine stretch in its N-terminus causes Huntington's disease (HD), a progressive neurodegenerative disorder. Huntingtin has been proposed to play a functional role in membrane trafficking via proteins ...

journal_title：Journal of neurochemistry

authors： Suopanki J,Götz C,Lutsch G,Schiller J,Harjes P,Herrmann A,Wanker EE

更新日期：2006-02-01 00:00:00

abstract：:Tau is a microtubule-associated protein that loses microtubule binding activity and aggregates into paired helical filaments (PHFs) in Alzheimer's disease. Nonenzymic glycation is one of the posttranslational modifications detected in PHF-tau, but not in normal tau. PHF-tau has reduced ability to bind to microtubules....

journal_title：Journal of neurochemistry

authors： Nacharaju P,Ko L,Yen SH

更新日期：1997-10-01 00:00:00

abstract：:Type 1 cannabinoid receptor (CB1) is expressed in different neuronal populations in the mammalian brain. In particular, CB1 on GABAergic or glutamatergic neurons exerts different functions and display different pharmacological properties in vivo. This suggests the existence of neuron-type specific signalling pathways ...

journal_title：Journal of neurochemistry

authors： Steindel F,Lerner R,Häring M,Ruehle S,Marsicano G,Lutz B,Monory K

更新日期：2013-03-01 00:00:00

abstract：:In Aplysia, serotonin mediates behavioral sensitization by increasing the strength of the synapse between sensory and motor neurons, a process known as facilitation. The retention of long-term facilitation is blocked by rapamycin, an inhibitor of a specific translational pathway. One possible rapamycin-sensitive targe...

journal_title：Journal of neurochemistry

authors： Carroll M,Warren O,Fan X,Sossin WS

更新日期：2004-09-01 00:00:00

abstract：:The F3 molecule is a member of the immunoglobulin superfamily anchored to plasma membranes by a glycosylphosphatidylinositol group. In adult mouse cerebellum, F3 is predominantly expressed on a subset of axons, the parallel fibers, and at their synapses. In vitro studies established that it is a plurifunctional molecu...

journal_title：Journal of neurochemistry

authors： Olive S,Dubois C,Schachner M,Rougon G

更新日期：1995-11-01 00:00:00

abstract：:Axonal degeneration is a key component of many neurodegenerative diseases. Injured axons undergo a program of self-destruction termed Wallerian degeneration that is an active, well-regulated process. The pathways leading to axon fragmentation are uncharacterized, but experiments with wld(s) mutant mice led to the disc...

journal_title：Journal of neurochemistry

authors： Press C,Milbrandt J

更新日期：2009-04-01 00:00:00

abstract：:Ketamine is an anesthetic that exhibits analgesic, psychotomimetic, and rapid antidepressant effects that are of particular neuropharmacological interest. Recent studies revealed astrocytic Ca(2+) signaling and regulated exocytosis as ketamine-targeted processes. Thus high-resolution cell-attached membrane capacitance...

journal_title：Journal of neurochemistry

authors： Lasič E,Rituper B,Jorgačevski J,Kreft M,Stenovec M,Zorec R

更新日期：2016-09-01 00:00:00

abstract：:The incorporation of radioactive phosphate into proteins of both normal and regenerating ganglia of the sympathetic nervous system of the rat is reported. The incorporation reactions were carried out in vitro by incubating homogenates of excised ganglia with [gamma-32P]ATP under various conditions. It was found that i...

journal_title：Journal of neurochemistry

authors： Watterson JG,Good R,Moses E,Hearn MT,Austin L

更新日期：1989-06-01 00:00:00

abstract：:(R)-[3H]Tomoxetine is a radioligand that binds to the norepinephrine (NE) uptake site with high affinity but also binds to a second, lower-affinity site. The goal of the present study was to identify the nature of this low-affinity site by comparing the binding properties of (R)-[3H]tomoxetine with those of (R/S)-[3H]...

journal_title：Journal of neurochemistry

authors： Gehlert DR,Schober DA,Gackenheimer SL

更新日期：1995-06-01 00:00:00

abstract：:In this study, we examined the molecular and functional characterization of choline uptake into cultured rat cortical astrocytes. Choline uptake into astrocytes showed little dependence on extracellular Na+. Na+-independent choline uptake was saturable and mediated by a single transport system, with an apparent Michae...

journal_title：Journal of neurochemistry

authors： Inazu M,Takeda H,Matsumiya T

更新日期：2005-09-01 00:00:00

abstract：:Ammonium (NH(4) (+) ) is required to maintain pathways involved in shuttling metabolic precursors between astrocytes and neurones. Under hyperammonaemic conditions, increases in the cellular influx of NH(4) (+) , and accompanying changes in ion concentrations, may contribute to disruptions in metabolism and neurotrans...

journal_title：Journal of neurochemistry

authors： Kelly T,Rose CR

更新日期：2010-12-01 00:00:00