Characterization of high affinity and stereospecific [ (3)H ]d- fenfluramine binding to rat brain.

abstract：:Astrocytes, the most versatile cells of the central nervous system, play an important role in the regulation of neurotransmitter homeostasis, energy metabolism, antioxidant defenses and the anti-inflammatory response. Recently, our group characterized cortical astrocyte cultures from adult Wistar rats. In line with th...

journal_title：Neurochemistry international

authors： Souza DG,Bellaver B,Raupp GS,Souza DO,Quincozes-Santos A

更新日期：2015-11-01 00:00:00

abstract：:Phosphodiesterase 7B (PDE7B) inhibition has been considered as a therapeutic target for the treatment of several neurological disorders. Currently, there are no radio-labeled tracers available to determine receptor occupancy (RO) of this target. Developing such a tracer could greatly facilitate the identification of v...

journal_title：Neurochemistry international

authors： Chen J,Gu G,Chen M,Scott T,Heger L,Zook D,Chung D,Keenan T,Renick J,Santora VJ,Vivian J,Stauber K,Breitenbucher JG,Tabatabaei A

更新日期：2020-07-01 00:00:00

abstract：:The opening of pannexin-1 (Px1) hemichannels is regulated by the activity of P2X(7) receptors (P2X(7)Rs). At present, however, little is known about how extracellular ATP-sensitive P2X(7)Rs regulates the opening and closure of Px1 hemichannels. Several lines of evidence suggest that P2X(7)Rs are activated under pathol...

journal_title：Neurochemistry international

authors： Iwabuchi S,Kawahara K

更新日期：2011-02-01 00:00:00

abstract：:Following intravitreal injections of (35)S-amino acids to label axonally transported proteins, calpain I and II from the superior colliculi and the lateral geniculate bodies were isolated via hydrophobic interaction chromatography, anion exchange HPLC and sodium-dodecyl sulphate electrophoresis. Among the slowly trans...

journal_title：Neurochemistry international

authors： Nilsson E,Karlsson JO

更新日期：1990-01-01 00:00:00

abstract：:The developmental profile of cytosolic sialidase from the nerve ending and the nerve ending-free compartments of rat forebrain was studied from birth to 150 days. Soluble extracts containing the cytosol from nerve endings and nerve ending-free tissue were separately prepared; the recovery of cytosol in the two extract...

journal_title：Neurochemistry international

authors： Venerando B,Fiorilli A,Malesci A,Goi GC,Lombardo A,Preti A,Tettamanti G

更新日期：1983-01-01 00:00:00

abstract：:Several endogenous brain substances which inhibit [3H]muscimol binding were isolated, and one of them has been purified to apparent homogeneity. The purification involved the extraction of brain tissue with water, followed by several steps of gel filtration column chromatography and high performance liquid chromatogra...

journal_title：Neurochemistry international

authors： Tang XW,Yarom M,Carlson RG,Vander Velde D,Huang PY,Lee YH,Seah EC,Deupree D,Wu JY

更新日期：1993-11-01 00:00:00

abstract：:Phosphine-borane complexes are novel cell-permeable drugs that protect neurons from axonal injury in vitro and in vivo. These drugs activate the extracellular signal-regulated kinases 1/2 (ERK1/2) cell survival pathway and are therefore neuroprotective, but do not scavenge superoxide. In order to understand the intera...

journal_title：Neurochemistry international

authors： Niemuth NJ,Thompson AF,Crowe ME,Lieven CJ,Levin LA

更新日期：2016-10-01 00:00:00

abstract：:Na+-dependent uptake of excitatory neurotransmitter glutamate in astrocytes increases cell energy demands primarily due to the elevated ATP consumption by glutamine synthetase and Na+, K+-ATPase. The major pool of GLAST/EAAT1, the only glutamate transporter subtype expressed by human fetal astrocytes in undifferentiat...

journal_title：Neurochemistry international

authors： Gegelashvili M,Rodriguez-Kern A,Sung L,Shimamoto K,Gegelashvili G

更新日期：2007-06-01 00:00:00

abstract：:Structural analogues of ZAPA, Z-3-[(aminoiminomethyl)thio]prop-2-enoic acid, an isothiouronium analogue of GABA, are potent GABAA agonists as seen in the isolated guinea-pig ileum and in the facilitation of [3H]diazepam binding to rat brain membranes. Compounds with guanidino or amidine groups replacing the amino func...

journal_title：Neurochemistry international

authors： Allan RD,Dickenson HW,Johnston GA,Kazlauskas R,Mewett KN

更新日期：1997-06-01 00:00:00

abstract：:The cholinergic nerve terminals of Torpedo electric organ are a rich source of a hydrophobic protein, the mediatophore, which endows artificial membranes with a calcium dependent mechanism that translocates acetylcholine. An antiserum raised against purified mediatophore permitted the identification of two different p...

journal_title：Neurochemistry international

authors： Morel N,Israel M,Synguelakis M,Le Gal la Salle G

更新日期：1989-01-01 00:00:00

abstract：:The influx of extracellular Zn(2+) into dentate granule cells is nonessential for dentate gyrus long-term potentiation (LTP) and the physiological significance of extracellular Zn(2+) dynamics is unknown in the dentate gyrus. Excess increase in extracellular Zn(2+) in the hippocampal CA1, which is induced with excitat...

journal_title：Neurochemistry international

authors： Suzuki M,Fujise Y,Tsuchiya Y,Tamano H,Takeda A

更新日期：2015-08-01 00:00:00

abstract：:Immunohistochemical study on growth inhibitory factor (GIF) in rat brain has revealed that a glial cell layer on the surface of cerebral cortex and the cells surrounding Purkinje cells has been reported. In addition, neurons in gray matter were weakly immunostained for GIF. In situ hybridization using digoxigenin-labe...

journal_title：Neurochemistry international

authors： Anezaki T,Ishiguro H,Hozumi I,Inuzuka T,Hiraiwa M,Kobayashi H,Yuguchi T,Wanaka A,Uda Y,Miyatake T

更新日期：1995-07-01 00:00:00

abstract：:Neurodegenerative disorders are strongly associated with oxidative stress, which is induced by reactive oxygen species including hydrogen peroxide (H₂O₂). Epidemiological studies have suggested that coffee may be neuroprotective, but the molecular mechanisms underlying this effect have not been clarified. In this stud...

journal_title：Neurochemistry international

authors： Kim J,Lee S,Shim J,Kim HW,Kim J,Jang YJ,Yang H,Park J,Choi SH,Yoon JH,Lee KW,Lee HJ

更新日期：2012-04-01 00:00:00

abstract：:Cholesterol, a molecule critical for cellular function, is found in particular high concentration in the brain and has been implicated to synaptic plasticity and neuronal regeneration. This study was undertaken to investigate the mechanism by which cholesterol shortage modulates glutamate (Glu)-induced excitotoxicity ...

journal_title：Neurochemistry international

authors： Chou YC,Lin SB,Tsai LH,Tsai HI,Lin CM

更新日期：2003-08-01 00:00:00

abstract：:ATPase activities in CNS membranes were studied after administration of desipramine (DMI), a noradrenaline (NA) uptake inhibitor. In a previous paper we reported that Na+,K(+)-ATPase activity significantly increased 3 h after DMI administration (10 mg/kg) in hypothalamus and mesencephalus but not in cerebral cortex an...

journal_title：Neurochemistry international

authors： Viola MS,Rodríguez de Lores Arnaiz G,Enero MA

更新日期：1994-01-01 00:00:00

abstract：:We have previously demonstrated that acute hyperhomocysteinemia induces oxidative stress in rat brain. In the present study, we initially investigated the effect of chronic hyperhomocysteinemia on some parameters of oxidative damage, namely total radical-trapping antioxidant potential and activities of antioxidant enz...

journal_title：Neurochemistry international

authors： Matté C,Mackedanz V,Stefanello FM,Scherer EB,Andreazza AC,Zanotto C,Moro AM,Garcia SC,Gonçalves CA,Erdtmann B,Salvador M,Wyse AT

更新日期：2009-01-01 00:00:00

abstract：:The observation that autophosphorylation converts CaM kinase II from the Ca(2+)-dependent form to the Ca(2+)-independent form has led to speculation that the formation of the Ca(2+)-independent form of the enzyme could encode frequency of synaptic usage and serve as a molecular explanation of "memory". In cultured rat...

journal_title：Neurochemistry international

authors： Fukunaga K,Muller D,Miyamoto E

更新日期：1996-04-01 00:00:00

abstract：:Neurons differentiated in vitro from embryonic stem cells (ESCs) have the potential to serve both as models of disease states and in drug discovery programs. In this study, we use sonic hedgehog (SHH) and fibroblast growth factor 8 (FGF-8) to enrich for forebrain and midbrain phenotypes from mouse ESCs. We then invest...

journal_title：Neurochemistry international

authors： Khaira SK,Nefzger CM,Beh SJ,Pouton CW,Haynes JM

更新日期：2011-09-01 00:00:00

abstract：:We examined the vesicular accumulation of the excitatory amino-acid (EAA) neurotransmitters, L-glutamate and L-aspartate, together with the non-metabolisable EAA analogue D-aspartate. Synaptosomes derived from whole brain were incubated in various concentrations of [3H]-amino acids under conditions to facilitate vesic...

journal_title：Neurochemistry international

authors： Fleck MW,Barrionuevo G,Palmer AM

更新日期：2001-09-01 00:00:00

abstract：:Neuroinflammation is believed to play an important role in neurological diseases such as Alzheimer's disease (AD). Growing evidence suggests that n-3 PUFA have protective effects by inhibiting inflammatory processes including synthesis of eicosanoids from arachidonic acid. There is also some evidence suggesting that i...

journal_title：Neurochemistry international

authors： Boudrault C,Bazinet RP,Kang JX,Ma DW

更新日期：2010-03-01 00:00:00

abstract：:Parkinson's disease (PD) is the second most common neurodegenerative disorder characterized by the progressive loss of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc). Rupture of lysosome is a major cellular stress condition leading to cell death in PD. We have previously shown that environmenta...

journal_title：Neurochemistry international

authors： Dong H,Qin Y,Huang Y,Ji D,Wu F

更新日期：2019-06-01 00:00:00

abstract：:Flavonoids that are found in nutraceuticals have many and varied effects on the activation of ionotropic receptors for GABA, the major inhibitory neurotransmitter in our brains. They can act as positive or negative modulators enhancing or reducing the effect of GABA. They can act as allosteric agonists. They can act t...

journal_title：Neurochemistry international

authors： Johnston GA

更新日期：2015-10-01 00:00:00

abstract：:Short-term supplementation of low protein diet (LPD) or high protein diet (HPD) to the aged (18 months old) rats did not change the hypothalamic GABAergic activity and immune response. Long-term supplementation of LPD on the other hand, enhanced hypothalamic GABAergic activity with an immunopotentiation by increasing ...

journal_title：Neurochemistry international

authors： Bandyopadhyay BC,Poddar MK

更新日期：1998-02-01 00:00:00

abstract：:The effects of hypoxia on the metabolism of the central nervous system were investigated in rats submitted to a low oxygen atmosphere (8% O(2); 92% N(2)). [1-(13)C]glucose and [2-(13)C]acetate were used as substrates, this latter being preferentially metabolized by glial cells. After 1-h substrate infusion, the incorp...

journal_title：Neurochemistry international

authors： Chateil J,Biran M,Thiaudière E,Canioni P,Merle M

更新日期：2001-04-01 00:00:00

abstract：:To clarify molecular mechanism for sustained activation of gamma protein kinase C (gammaPKC), a neuron-specific subtype, we investigated the involvement of phospholipase A2 (PLA2) products in the membrane association of gammaPKC upon activation of G protein coupled purinoceptors in CHO-K1 and NG 108-15 cells. In addit...

journal_title：Neurochemistry international

authors： Yagi K,Shirai Y,Hirai M,Sakai N,Saito N

更新日期：2004-07-01 00:00:00

abstract：:A procedure for studying 5-hydroxytryptamine synthesis by determining the rate of accumulation of 5-hydroxytryptophan after administering m-hydroxybenzylhydrazine, an inhibitor of aromatic-l-amino acid decarboxylase, and large doses of l-tryptophan was characterized. The utility of this method as an index of 5-hydroxy...

journal_title：Neurochemistry international

authors： Nielsen JA

更新日期：1986-01-01 00:00:00

abstract：:Acetylcholine is an excitatory neurotransmitter in the central nervous system of insects and the nicotinic acetylcholine receptor (nAChR) is a target for neonicotinoid insecticides. Functional insect nAChRs are difficult to express in host cells, and hence difficult to study. In mammals, acetylcholine and nicotine evo...

journal_title：Neurochemistry international

authors： Pyakurel P,Shin M,Venton BJ

更新日期：2018-03-01 00:00:00

abstract：:The changes in intracellar Ca(2+)-concentration, which occur during stimulation of vascular smooth muscle cells with excitatory agonists, are discussed. The effects of these agonists on the membrane potential of these cells are indirect, and mainly due to an activation of K(+)- and Cl(?)-channels by the release of cal...

journal_title：Neurochemistry international

authors： Casteels R,Droogmans G,Missiaen L

更新日期：1990-01-01 00:00:00

abstract：:A biochemical study of the endogenous levels of serotonin (5-HT), noradrenaline (NA) and the activity of choline acetyltransferase (CAT) was carried out in the intestinal tract of the rat. High levels of 5-HT and NA were detected in the caecum and the colon. These anatomical regions also presented the highest activity...

journal_title：Neurochemistry international

authors： Legay C,Faudon M,Ternaux JP

更新日期：1983-01-01 00:00:00

abstract：:The mobilization of inositol triphosphate ip3 by N-methyl D-aspartate (NMDA) and kainate, two excitatory amino acid EAA receptor agonists, was studied in cultured chick retina cells as a function of culture differentiation. Kainate (EC50 = 30 microM) stimulated from 6 to 9-fold the production of [3H]ip3 between E8C3 (...

journal_title：Neurochemistry international

authors： Reis RA,Kubrusly RC,de Mello MC,de Mello FG

更新日期：1995-04-01 00:00:00