abstract：:The activities of monoamine oxidase (MAO)-A and -B in subcellular fractions of bovine retina were determined using serotonin and beta-phenylethylamine, respectively, as substrates. The subcellular fractions were a P1 fraction containing photoreceptor cell synaptosomes and a P2 fraction enriched with small synaptosomes...

journal_title：Neuroscience letters

authors： Sparks DL,Thomas TN,Buckholtz NS

更新日期：1981-01-20 00:00:00

abstract：:Diurnal variation of N-acetylserotonin in the retina was studied in male rats housed under a photoperiod of 12 h light and 12 h darkness (lights on at 06.00 h) for two weeks. N-acetylserotonin was extracted from the retina by ethyl acetate at pH less than or equal to 3 and was determined by radioimmunoassay. There is ...

journal_title：Neuroscience letters

authors： Pang SF,Yu HS,Tang PL

更新日期：1981-01-20 00:00:00

abstract：:Iontophoretically applied 2-azido photoaffinity analogues of adenosine 5'-triphosphate (ATP) and adenosine 5'-monophosphate (AMP) have been tested on rat cerebral cortical neurons. 2-Azido-AMP and 2-azido-ATP had a powerful depressant action on the spontaneous firing of cortical neurons. Both compounds were equipotent...

journal_title：Neuroscience letters

authors： Phillis JW

更新日期：1981-01-01 00:00:00

abstract：:To investigate diurnal variations in opiate receptor binding, the amount of specifically bound [3H]naloxone was measured at 4-h intervals across a 24-h period in the forebrains of rats that had been housed under a controlled light--dark cycle (lights on from 07.00 to 19.00 h) for 3 weeks. A significant rhythm with a p...

journal_title：Neuroscience letters

authors： Naber D,Wirz-Justice A,Kafka MS

更新日期：1981-01-01 00:00:00

abstract：:A large dose of carbachol (5 micrograms/0.5 microliters) unilaterally microinjected into the rostral substantia nigra of rats induced stereotypy characterized by biting, gnawing and licking. A lower dose (0.5 micrograms/0.5 microliter) of the cholinomimetic potentiated normal food intake in satiated animals. Both the ...

journal_title：Neuroscience letters

authors： Taha EB,Redgrave P

更新日期：1980-12-01 00:00:00

abstract：:Post-mortem brain tissue from 15 patients dying with a diagnosis of senile dementia of Alzheimer type (SDAT) was compared with tissue obtained from 16 control patients at routine post-mortem. A significant fall in choline acetyltransferase (ChAT) activity was observed in the cortex, hippocampus and amygdala of the SDA...

journal_title：Neuroscience letters

authors： Rossor MN,Emson PC,Mountjoy CQ,Roth M,Iversen LL

更新日期：1980-12-01 00:00:00

abstract：:Electrical stimulation in the lateral midbrain reticular formation (LRF) inhibited the responses of spinal dorsal horn neurons to noxious (50 degrees C) skin heating. Systemic administration of naloxone (0.1-2 mg/kg) had no effect on inhibition produced by LRF stimulation in 10 units, while this inhibition was partial...

journal_title：Neuroscience letters

authors： Carstens E,Zimmermann M

更新日期：1980-12-01 00:00:00

abstract：:An attempt was made to identify the immunoreactive substance P (SP) released from isolated rat spinal cords using reversed-phase high-performance liquid chromatography (HPLC) combined with radioimmunoassay (RIA) for SP. Soaking the spinal cords of newborn rats in Krebs solution containing 90 mM K+ evoked a release of ...

journal_title：Neuroscience letters

authors： Akagi H,Otsuka M,Yanagisawa M

更新日期：1980-12-01 00:00:00

abstract：:The ionic detergent sodium cholate, in the presence of 1 M NaCl, solubilizes a 20S acetylcholinesterase from chick retina and other brain tissues previously extracted with a buffered solution containing 1% Triton X-100 and 1 M NaCl. This 20S acetylcholinesterase appears to be a tailed form of the enzyme which, upon co...

journal_title：Neuroscience letters

authors： Barat A,Escudero E,Gómez-Barriocanal J,Ramirez G

更新日期：1980-11-01 00:00:00

abstract：:Using the peroxidase-antiperoxidase complex (PAP) immunohistological method, a luteinizing hormone-releasing hormone (LH-RH)-containing nerve fiber tract was detected in the mesencephalon of intact rats, and in rats bearing a symmetrical cut in the coronal plane at the level of the superior collicle reaching down to t...

journal_title：Neuroscience letters

authors： Liposits Z,Sétáló G

更新日期：1980-10-20 00:00:00

abstract：:The effect of acute phenylethanolamine-N-methyltransferase (PNMT) inhibition on rat brain catecholamine concentrations was studied. All PNMT inhibitors tested were effective in depleting hypothalamic and brain stem epinephrine. Norepinephrine concentrations were unaffected; however, dopamine levels were increased in a...

journal_title：Neuroscience letters

authors： Mefford IN,Roth KA,Barchas JD

更新日期：1980-10-20 00:00:00

abstract：:The neuritogenic activity of human peripheral nerve myelin proteins in Lewis rats was examined. Experimental allergic neuritis (EAN) was induced by human myelin fraction in all Lewis rats examined. Purified human P2 protein induced mild but definite EAN. None of purified P0 protein, total myelin lipids, gangliosides a...

journal_title：Neuroscience letters

authors： Suzuki M,Kitamura K,Uyemura K,Ogawa Y,Ishihara Y,Matsuyama H

更新日期：1980-10-02 00:00:00

abstract：:Horseradish peroxidase (HRP), injected into the rat caudal medulla oblongata, was detected by immunoperoxidase staining in 120 microns frozen sections, allowing examination of both the distribution and morphology of transporting neurons. In the hypothalamus, several groups of HRP-labeled neurons could be distinguished...

journal_title：Neuroscience letters

authors： Sofroniew MV,Schrell U

更新日期：1980-10-02 00:00:00

abstract：:Transection of the non-glutamatergic septohippocampal fibers 3-5 days prior to intrahippocampal microinjection of 1 microgram kainic acid (KA) or 3 micrograms ibotenic acid (IBO) protect dentate granule cells against KA but not IBO. In the transected animals, a significant reduction of KA-induced behavioral seizures c...

journal_title：Neuroscience letters

authors： Schwarcz R,Köhler C

更新日期：1980-10-02 00:00:00

abstract：:The effect of training on a passive avoidance test on incorporation of [3H]fucose into subcellular fractions of the anterior forebrain roof of 1-day-old chicks was determined. Isotope was injected intraperitoneally, and birds tested and killed after 3 h. There was an increase in incorporation in trained compared with ...

journal_title：Neuroscience letters

authors： Burgoyne RD,Rose SP

更新日期：1980-10-02 00:00:00

abstract：:Ibotenic acid was injected in the lateral geniculate nucleus of cats to investigate the suitability of the technique in studies involving anterograde degeneration in the thalamo-cortical pathway when it is important not to damage fibres of passage at the lesion site. Small injections cause localized degeneration of ne...

journal_title：Neuroscience letters

authors： Garey LJ,Hornung JP

更新日期：1980-09-01 00:00:00

abstract：:[35S]Methionine was injected into the mediodorsal nucleus of the thalamus of 5 adult tree shrews (Tupaia belangeri) and into the medioventral thalamic nucleus in another tree shrew. Three animals survived for 44 h and three others for two weeks (including the animal with the injection in the medioventral nucleus). Con...

journal_title：Neuroscience letters

authors： Divac I,Passingham RE

更新日期：1980-08-01 00:00:00

abstract：:Immunoreactive beta-endorphin is localized mainly in the synaptosome-enriched subcellular fraction from rat hypothalami. In this report, we demonstrate that release of immunoreactive beta-endorphin from the synaptosome-enriched subcellular fraction is increased by 150% in a medium containing high potassium. This stimu...

journal_title：Neuroscience letters

authors： Fukata J,Nakai Y,Imura H

更新日期：1980-08-01 00:00:00

abstract：:Penicillins are thought to be GABA receptor antagonists. In order to determine the affinities of various penicillin derivatives for the GABA receptor, their potencies as inhibitors of specific [3H]GABA binding to rat brain membranes were investigated. All investigated penicillins inhibit specific [3H]GABA binding, wit...

journal_title：Neuroscience letters

authors： Antoniadis A,Müller WE,Wollert U

更新日期：1980-07-01 00:00:00

abstract：:Most single fibers of the cochlear nerve (CN) in 22 cats exhibited effects of mechanical interaction in one cochlea between two sounds applied binaurally, similarly to results in two cats in which the contralateral CN was transected. In 11 of 189 fibers, the spontaneous and/or the sound-evoked activity was suppressed ...

journal_title：Neuroscience letters

authors： Murata K,Tanahashi T,Horikawa J,Funai H

更新日期：1980-07-01 00:00:00

abstract：:The accumulation of choline acetyltransferase (CAT) proximal to and nerve growth factor (NGF) distal to the intraneural site of tetrodotoxin (TTX) or batrachotoxin (BTX) injection in vivo was used to monitor orthograde and retrograde axonal transport. Orthograde axonal transport was blocked by BTX for up to 7-10 days ...

journal_title：Neuroscience letters

authors： Boegman RJ,Riopelle RJ

更新日期：1980-06-01 00:00:00

abstract：:The effects have been investigated of anesthetic and convulsant barbiturates on the spontaneous and potassium-stimulated efflux of [3H]D-aspartate from rat cortex minislices. In concentrations (100 microM) which have previously been shown to alter calcium ATPase activity in synaptosomes, anaesthetic barbiturates depre...

journal_title：Neuroscience letters

authors： Willow M,Bornstein JC,Johnston GA

更新日期：1980-06-01 00:00:00

abstract：:By means of a new photographic method to quantitate catecholamine fluorescence in tissue sections it has been possible to demonstrate a high dopamine (DA) turnover within the DA cell bodies of the midbrain. The medially located small-sized DA cell bodies of the A10 DA cell group has a very high DA turnover which was s...

journal_title：Neuroscience letters

authors： Agnati LF,Fuxe K,Andersson K,Benfenati F,Cortelli P,D'Alessandro R

更新日期：1980-05-15 00:00:00

abstract：:During and after degeneration of the optic nerve afferents in the rat suprachiasmatic nucleus (SCN) postsynaptic density (PD) material is added to existing symmetrical and asymmetrical appositions of non-optic synapses on optic target neurons. If the correlation between thickness of the postsynaptic density and excita...

journal_title：Neuroscience letters

authors： Güldner FH,Ingham CA

更新日期：1980-04-01 00:00:00

abstract：:The effect of unilateral electrical stimulation of the posterior interposate nucleus of the cerebellum was examined on the activity of the nigro-striatal dopaminergic pathways on both sides of the brain in alpha-chloralose anaesthetized cats. Push-pull cannulae were inserted into both caudate nuclei and both substanti...

journal_title：Neuroscience letters

authors： Nieoullon A,Dusticier N

更新日期：1980-04-01 00:00:00

abstract：:We have prepared dissociated cell cultures from adult rat optic nerve. After 48 h in culture cells of both fibroblastic and process-bearing morphology could be recognised. Using indirect immunofluroescence and cell-type specific markers it was possible to unambiguously identify astrocytes and oligodendrocytes in cultu...

journal_title：Neuroscience letters

authors： Kennedy PG,Lisak RP

更新日期：1980-03-01 00:00:00

abstract：:Secondary optic projections were studied in the toad, Bufo marinus using the method of transneuronal transport of triated proline and fucose. Following a survival of 14 days after eye injection autoradiographic label was transported transneuronally to the contralateral nucleus isthmi, the deeper layers of the contrala...

journal_title：Neuroscience letters

authors： Mayner L

更新日期：1980-03-01 00:00:00

abstract：:A Golgi-Cox, cresyl violet, and histofluorescence study has revealed the presence of dendrite bundles in nuclei raphe dorsalis (NRD) and centralis superior (NCS) in the rabbit brain stem. In NRD, bundles were found in the midline, traversing the medial longitudinal fasciculus (MLF) and in a circumferential location ar...

journal_title：Neuroscience letters

authors： Felten DL,Harrigan P

更新日期：1980-03-01 00:00:00

abstract：:A method for the histochemical demonstration of cells with the capacity to synthesize the enzyme GABA-transaminase is described. Intraventricular injection of ethanolamine-O-sulfate irreversibly inhibits brain GABA-transaminase activity. Within 17 h after the injection sufficient new enzyme is synthesized to allow his...

journal_title：Neuroscience letters

authors： Vincent SR,Kimura H,McGeer EG

更新日期：1980-03-01 00:00:00

abstract：:Indirect Wallerian degeneration after sectioning the infraorbital nerve, and retrograde axonal transport following injection of horseradish peroxidase (HRP) into the maxillary nerve were studied in rats. These experiments showed the existence of primary trigeminal neurons in the pars caudalis of the ipsilateral trigem...

journal_title：Neuroscience letters

authors： Gonzálo-Sanz LM,Insausti R

更新日期：1980-02-01 00:00:00

abstract：:Aspartate, glutamate and GABA levels were determined in afferent and efferent projection nuclei of the striatum after unilateral cylindric lesion in the head of the caudate nucleus in cats. Two and four weeks after operation, GABA content was significantly reduced in substantia nigra and pallidum ipsilateral to the le...

journal_title：Neuroscience letters

authors： Taniyama K,Nitsch C,Wagner A,Hassler R

更新日期：1980-02-01 00:00:00

abstract：:The gamma-aminobutyric acid (GABA) antagonist (+/-)-bicuculline inhibits specific [3H]strychnine binding to postsynaptic glycine receptor sites in rat spinal cord synaptosomal membranes with an inhibition constant of about 5 microM, which is fairly similar to its inhibition constant reported for the GABA receptor. Thi...

journal_title：Neuroscience letters

authors： Goldinger A,Müller WE

更新日期：1980-01-01 00:00:00

abstract：:Spontaneous gasps were recorded in pentobarbitone-anesthetized adult cats. Mean interval between gasps in 11 cats with their buffer nerves intact was of 65 sec; it was significantly prolonged to 174 sec after unilateral carotid neurotomy and to 403 sec after bilateral carotid neurotomy. Additional sectioning of both a...

journal_title：Neuroscience letters

authors： Zuazo A,Zapata P

更新日期：1980-01-01 00:00:00

abstract：:Stereotaxic injections of ibotenic acid (IBO) and kainic acid (KA) into either the dorsal hippocampus or the lateral cerebroventricle were performed in order to determine the relative potencies of the drugs and the vulnerability of different hippocampal cell types to their neurotoxic action, IBO was found to be approx...

journal_title：Neuroscience letters

authors： Köhler C,Schwarcz R,Fuxe K

更新日期：1979-12-01 00:00:00

abstract：:The neurons located in the mesencephalic ventro-medial tegmentum (VMT) and projecting to the nucleus accumbens, the septum and the frontal cortex were identified by the antidromic activation method. The activity of single VMT cells was extracellularly recorded in Ketamine anaesthetized rats. The effect of the stimulat...

journal_title：Neuroscience letters

authors： Thierry AM,Deniau JM,Feger J

更新日期：1979-12-01 00:00:00

abstract：:Daily administration of clonidine for 5 weeks (approx. 300 micrograms/kg/day, p.o.) produced significant decreases in blood pressure and renal sympathetic efferent activity in spontaneously hypertensive rats (SHR). After cessation of clonidine administration, blood pressure and sympathetic nerve activity recovered rap...

journal_title：Neuroscience letters

authors： Yomaida I,Murao M,Togashi H,Shimamura K,Koike Y,Monma Y,Saito HA

更新日期：1979-12-01 00:00:00

abstract：:Intrastriatal injections of kainic acid in rat brain, which destroyed striatal nerve cell bodies and their axons projecting to the substantia nigra (s. nigra) decreased the rate of breakdown of exogenuously added substance P by washed slice preparations of s. nigra. Injection of 6-hydroxydopamine (6-OHDA) into the s. ...

journal_title：Neuroscience letters

authors： Quik M,Emson PC

更新日期：1979-12-01 00:00:00

abstract：:Thyrotropin releasing hormone (TRH) was applied iontophoretically to single neruones in the rat bulbar reticular formation. TRH excited 41 to 56 cells tested; none were inhibited. Excitation developed slowly and was prolonged, and desensitization often occurred. TRH effects were not correlated with effects of acetylch...

journal_title：Neuroscience letters

authors： Briggs I

更新日期：1979-11-01 00:00:00

abstract：:A two pulse technique was used to study the decay of mechanical activation in TTX poisoned mouse extensor digitorum longus (EDL) and soleus muscle fibres. A two microelectrode point voltage clamp technique was used with visual endpoint determination of the threshold potential for activation. The excitatory effect of a...

journal_title：Neuroscience letters

authors： Dulhunty AF

更新日期：1979-10-01 00:00:00

abstract：:A partially purified toxin obtained from the coral reef crab, Lophozozymus pictor was found to be a potent inhibitor of Na+-dependent [14C]-GABA uptake by rat brain synaptosomes. Inhibition was potentiated in the presence of external K+. The I50 value for the toxin was found to be in the region of 10 microgram/ml at a...

journal_title：Neuroscience letters

authors： Tan CH,Abkowitz SJ

更新日期：1979-10-01 00:00:00