Abstract:
:The neurite promoting factors in the astroglial conditioned medium (As-CM) were characterized by using primary cultures of embryonic rat neocortical neurons. The factors in the As-CM bind to lectins such as wheat germ agglutinin (WGA), suggesting that they contain sugar moieties. When the WGA-bound fractions were applied on a Superose 6 column, the activity was recovered mainly in two fractions, peak I and peak II. The peak II fraction was further purified by Mono Q anion exchange chromatography. A single protein band of 180 kDa was detected in the final Mono Q fraction by sodium dodecylsulfate polyacrylamide gel electrophoresis. The molecular weight coincided with that of alpha 2-macroglobulin (alpha 2M). Western blotting showed that the single protein band was reacted with anti-alpha 2M antibody but not with anti-fibronectin and anti-laminin antisera. The neurite-promoting activity of the Mono Q fraction was inhibited by anti-alpha 2M antibody. Furthermore, commercially available alpha 2M also promotes neurite outgrowth in our assay system. These results strongly suggested that alpha 2M is one of the neurite-promoting factors in the As-CM.
journal_name
Brain Resjournal_title
Brain researchauthors
Mori T,Iijima N,Kitabatake K,Kohsaka Sdoi
10.1016/0006-8993(90)91059-psubject
Has Abstractpub_date
1990-09-10 00:00:00pages
55-61issue
1eissn
0006-8993issn
1872-6240pii
0006-8993(90)91059-Pjournal_volume
527pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract::The hypothalamic paraventricular nucleus is known to send projections to the dorsal medullary area where it appears to innervate the nucleus tractus solitarius and the dorsal motor nucleus of the vagus. Experiments were carried out in urethane anesthetized rats to identify single vagal motor neurons identified by anti...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(85)90399-3
更新日期:1985-04-15 00:00:00
abstract::Previous studies in piglets show that opioid-induced pial artery dilation was impaired following fluid percussion brain injury (FPI). This study was designed to determine the role of the newly described opioid nociceptin orphanin FQ (NOC/oFQ) in such impaired dilation to other opioids after FPI. CSF NOC/oFQ concentrat...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(00)02367-2
更新日期:2000-06-30 00:00:00
abstract::Male guinea pigs were given 3 tests for sexual behavior. Animals that never ejaculated were classified as low activity (LA), animals that ejaculated on one test were classified as medium activity (MA), and animals that ejaculated on two or more tests were classified as high activity (HA). Subsequently, animals from ea...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(76)90929-x
更新日期:1976-03-19 00:00:00
abstract::The regulation of corticosteroid receptor expression in the rat brain by adrenal steroids remains controversial. The results of in vivo studies [Brinton and McEwen, 1988; Luttge et al., 1989] suggest that activation of type I receptors can modulate both mineralocorticoid (MR; type I) and glucocorticoid (GR; type II) r...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90174-0
更新日期:1994-02-04 00:00:00
abstract::After studying pathway selection in the brain of Rana pipiens during unilateral optic nerve regeneration, several frogs were allowed to survive for lengthy periods for use in the present investigation. Retina flat-mounts were prepared from both eyes at 42-50 weeks postoperation. In some cases, HRP was infiltrated into...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(85)90804-2
更新日期:1985-10-07 00:00:00
abstract::Lysosomal storage diseases are a heterogeneous group of hereditary disorders characterized by a deficiency in lysosomal function. Although these disorders differ in their etiology and phenotype those that affect the nervous system generally manifest as a profound deterioration in neurologic function with age. Over the...
journal_title:Brain research
pub_type: 杂志文章,评审
doi:10.1016/j.brainres.2014.05.029
更新日期:2014-07-21 00:00:00
abstract::Uptake of 5-hydroxytryptamine (5-HT) by adult and fetal rabbit's ileum was studied. The adult myenteric plexus accumulated tritium when incubated with tritiated 5-HT. However, in addition to labeled 5-HT, tritiated 5-hydroxyindole acetic acid and, when monoamine oxidase (MAO) was inhibited, 5-HT-o-glucuronide were fou...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(76)90360-7
更新日期:1976-10-22 00:00:00
abstract::Cerebral autoregulation was tested here in 3- and 18-month-old spontaneously hypertensive rats (SHR) and Wistar Kyoto controls (WKY). Cerebral blood flow (CBF) was measured in each rat using radioactive micropheres under unanesthetized control conditions and after hypotension induced by ganglionic blockade. Under cont...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(81)90454-6
更新日期:1981-06-09 00:00:00
abstract:BACKGROUND:Chronic exposure to estradiol-17β (E2) in adult female rats increases mean arterial pressure by stimulating superoxide production in the rostral ventrolateral medulla (RVLM). However the mechanisms behind this phenomenon are unknown. We hypothesized that E2 exposure induces the gene expression of cytokines, ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2015.09.007
更新日期:2015-11-19 00:00:00
abstract::The two major metabolites of (+/-)3,4-methylenedioxyamphetamine (MDA), alpha-methyldopamine (alpha-MeDA) and 3-O-methyl-alpha-methyldopamine (3-O-Me-alpha-MeDA), were administered to rats intracerebroventricularly and into brain parenchyma. In addition, their precursors, (alpha-MeDOPA and 3-O-Me-alpha-MeDOPA, respecti...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)91297-e
更新日期:1991-04-05 00:00:00
abstract::Female B6C3F1 mice were rendered tolerant-dependent on morphine by a combination of injections and pellet implantation. Mice were injected with morphine sulfate (20 mg/kg, s.c.) twice a day on day 1. On day 2, they were implanted s.c. with a 75 mg morphine pellet for 3 days. On day 5, the pellets were either left inta...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90899-0
更新日期:1994-04-11 00:00:00
abstract::Intracellular free calcium concentration ([Ca2+]i) was measured in cultured explants of myenteric plexus neurones by using the fluorescent calcium indicator Indol in combination with patch-clamp techniques. The basal [Ca2+]i was 94 nM and spontaneous oscillations in the internal free calcium concentration were recorde...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(93)90065-u
更新日期:1993-10-08 00:00:00
abstract::The polar head group of the phospholipid phosphatidylserine is similar in structure to the glutamate analogue 2-amino-4-phosphonobutyric acid (APB), an antagonist of excitatory transmission in the brain. When tested in ligand binding assays phosphatidylserine and its polar head group components O-phosphoserine and L-a...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(82)90328-6
更新日期:1982-06-24 00:00:00
abstract::Effects of hypothalamic stimulation (HS) were studied in intracellular recordings obtained from 125 neurons of the motor cortex (MC). HS that was effective in reinforcing bar-press behavior, i.e. satisfactory for intracranial self-stimulation (ICSS), evoked short-latency (less than 3 ms) activation of these cortical n...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)91458-8
更新日期:1988-01-26 00:00:00
abstract::Previous research has shown that, in freely moving laboratory rats, the odors of benzyl alcohol, camphor, carvacrol, isopentenyl methyl sulfide, 2-propylthietane, salicylaldehyde, trimethylthiazoline, and xylene (plus other compounds) elicit high amplitude bursts of roughly 20-Hz waves (beta-waves) in the olfactory bu...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(01)03225-5
更新日期:2002-01-11 00:00:00
abstract::Human seizure disorders represent a heterogeneous collection of neuropathies, many of which are poorly understood. To investigate the etiology of seizure disorders, we have used a group of Drosophila mutants known as the bang-sensitive (BS) paralytics. The BS mutants exhibit seizure-like activity (SLA) following a wid...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2009.12.036
更新日期:2010-02-26 00:00:00
abstract::The mechanism of action of norepinephrine (NE)-induced potentiation of the population spike in the dentate gyrus of hippocampal slices was examined and compared with NE effects in field CA1. NE-induced potentiation was confined to the dentate gyrus, where slices perfused for 30 min with concentrations of NE as low as ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(85)91299-5
更新日期:1985-12-30 00:00:00
abstract::In this study, the effects of chronic morphine administration (20-30 days) on long-term potentiation (LTP) were investigated at the Schaffer collateral-CA1 pyramidal cell synapses of the rat hippocampal slices. Orthodromic population spike (OPS) amplitude and delay (peak latency) were measured as indices of increase i...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(98)01148-2
更新日期:1999-01-09 00:00:00
abstract::Intraocular injections of tetrodotoxin were used to block activity for 27 days in normal fish and for the first 27 or 31 days of regeneration in fish with one optic nerve crushed. Synaptic activity was then assessed by a current source-density analysis of field potentials evoked by optic nerve shock at different times...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(83)90958-7
更新日期:1983-06-13 00:00:00
abstract::In the present study, we observed chronological changes of antioxidant-like protein 1 (AOP-1) in the gerbil hippocampal CA1 region after 5 min of transient forebrain ischemia using immunohistochemistry and western blot. AOP-1 was significantly altered in the CA1 region after transient ischemia. In the sham-operated gr...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2005.09.022
更新日期:2005-11-16 00:00:00
abstract::The localization of adenosine receptors labelled with [3H]cyclohexyladenosine ([3H]CHA) and adenosine transport sites labelled with [3H]nitrobenzylthioinosine ([3H]NBI) was examined in striatum and superior colliculus (SC) using radioligand binding and lesioning methods. Striatal kainic acid lesions significantly redu...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)91033-4
更新日期:1986-01-22 00:00:00
abstract::Although extracellular matrix (ECM) glycoproteins play important roles in neural development, their levels are generally believed to decrease in the adult brain. Immunohistochemical analysis indicates that the anti-adhesive ECM glycoprotein SPARC/osteonectin, which contains a follistatin 'module,' is expressed in the ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(95)00101-u
更新日期:1995-04-03 00:00:00
abstract::A new compound, 3-((+/-)-2-carboxypiperazin-4-yl)-propyl-1-phosphonic acid (CPP), has been evaluated as an excitatory amino acid receptor antagonist using electrophysiological assays and radioligand binding. In autoradiographic preparations, CPP reduces L-[3H]glutamate binding in regions of the hippocampus rich in N-m...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)90128-9
更新日期:1986-09-10 00:00:00
abstract::The effects of selective axotomy of serotoninergic neurons produced by an intracerebroventricular injection of 5,7-dihydroxytryptamine (200 micrograms free base) on 5-HT1B binding sites labeled with S-CM-G-[125I]TNH2 were investigated by quantitative autoradiography in the rat brain. Results show, 21 days after surger...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(93)91452-x
更新日期:1993-10-01 00:00:00
abstract::Photic entrainment of the circadian oscillator located in the hypothalamic suprachiasmatic nucleus (SCN) is considered to be mediated at least partly by release of glutamate from the retinal presynaptic nerve terminals acting via a NMDA receptor. Several NMDA receptor subtypes have been cloned and expressed in model s...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(93)91171-n
更新日期:1993-12-31 00:00:00
abstract::Recent research has shown that familiarity contributes to associative memory when the to-be-associated stimuli are unitized during encoding. However, the specific processes underlying familiarity-based recognition of unitized representations are still indefinite. In this study, we present electrophysiologically dissoc...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2010.08.089
更新日期:2010-11-11 00:00:00
abstract::The frequency-dependent effect of various anticonvulsant drugs on the conduction in central axons was studied in the corpus callosum of rat and guinea pig brain slices from the parietal region. Extracellularly recorded compound action potentials (CAPs) were evoked by either single stimulus or high frequency stimulatio...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)91636-s
更新日期:1992-07-24 00:00:00
abstract::Transient global cerebral ischemia has been shown to induce marked changes in the polyamine pathway with a significant increase in putrescine, the product of the ornithine decarboxylase reaction. This study examined the relationship between tissue and extracellular polyamines and regional cerebral blood flow and brain...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/S0006-8993(96)01116-X
更新日期:1997-01-09 00:00:00
abstract::Binge-like ethanol treatment of septal neurons blunts GABAAR-mediated miniature postsynaptic currents (mPSCs), suggesting it arrests synaptic development. Ethanol may disrupt postsynaptic maturation by blunting feedback signaling through immature GABAARs. Here, the impact of ethanol on the sensitivity of mPSCs to zolp...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2006.03.023
更新日期:2006-05-17 00:00:00
abstract::Cocaine increases dopamine concentration in the nucleus accumbens through competitive binding to the dopamine transporter (DAT). However, it also increases the frequency of dopamine release events, a finding that cannot be explained by action at the DAT alone. Rather, this effect may be mediated by cocaine-induced mod...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2016.10.022
更新日期:2017-01-15 00:00:00