Abstract:
:The ependymocytes lining the central canal of the spinal cord in rats have prominent F-actin networks in the apical cytoplasm, exhibiting significant regional heterogeneity between differing spinal levels. It is not clear when and how this regional heterogeneity develops. We examined F-actin in the central canal during postnatal development using fluorescein isothiocyanate-conjugated phalloidin staining and confocal laser scanning microscopy. The apical F-actin network in the central canal increased gradually in width during the first 2 weeks after birth, peaked rapidly in the third postnatal week, then decreased gradually to adult levels. Regional differences in the F-actin network did not appear until 21 postnatal days. When the intervertebral spine movements of rats aged 14 days are continuously restrained for 1 week, no regional differences of F-actin arose. These findings suggest that regional differentiation of the organization of F-actin network is related to the differing kinematics of the spine at different levels.
journal_name
Brain Resjournal_title
Brain researchauthors
Li YC,Bai WZ,Hashikawa Tdoi
10.1016/j.brainres.2008.08.045subject
Has Abstractpub_date
2008-11-06 00:00:00pages
100-6eissn
0006-8993issn
1872-6240pii
S0006-8993(08)02079-9journal_volume
1239pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract::The serotonin neurotoxin, 5,6-dihydroxytryptamine (5,6-DHT), was injected into the body cavity of snails. Changes induced in the central nervous system (CNS) by the neurotoxin were studied by morphological, electrophysiological and biochemical techniques for up to 90 days following injection. The neurotoxin induced a ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)90251-4
更新日期:1992-04-24 00:00:00
abstract::Protein phosphatases (PPs) regulate many substrates implicated in learning and memory. Conditioned taste aversion (CTA) learning, in which animals associate a novel taste paired with a toxin and subsequently avoid the taste, is dependent on several serine/threonine phosphatase substrates and the PP1-binding protein sp...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2010.06.029
更新日期:2010-08-12 00:00:00
abstract::Polyamines play critical roles during the development of brain neurons. In the present study we examined the effects of polyamines on neuronal apoptotic death. Rat cerebellar granule neurons were cultured in the presence of a depolarizing concentration of KCl (25 mM) in the medium. Apoptotic neuronal death was induced...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(97)00011-5
更新日期:1997-04-11 00:00:00
abstract::The effects of baclofen microinjected into the nucleus tractus solitarii (NTS) on blood pressure, heart rate and baroreflex bradycardia were studied in urethane-anesthetized rats. Baclofen caused dose-dependent pressor and tachycardic effects and inhibited the reflex bradycardia elicited by i.v. phenylephrine. The eff...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(90)91609-k
更新日期:1990-12-10 00:00:00
abstract::Male rats were treated with 10 mg/kg D-fenfluramine (DF) i.p., twice a day for 4 days. Five days later there was a strong reduction (70-100%) in the Bmax of [3H]citalopram binding and the Vmax of [3H]5-HT uptake in cortical and hippocampal synaptosomes; 2 months after the treatment these parameters were reduced by 40-...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(96)00435-0
更新日期:1996-08-19 00:00:00
abstract::The central nervous system (CNS) in adult mammals loses the ability to regenerate after injury. Although electrical stimulation (ES) has been shown to promote neural regeneration, the underlying mechanisms by which ES enhances CNS regeneration remain elusive. The aim of the present study was to investigate the effect ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2012.08.041
更新日期:2012-10-22 00:00:00
abstract::Administration of vitamin B12 (VB12) has been reported to normalize human sleep-wake rhythm disorders such as non-24-h sleep-wake syndrome (HNS), delayed sleep phase syndrome (DSPS) or insomnia. However, the mechanisms of the action of VB12 on the rhythm disorders are unknown. In the present study, therefore, effects ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(96)00349-6
更新日期:1996-07-15 00:00:00
abstract::Neovascularization within syngeneic rat fetal neocortical grafts transplanted into a previously prepared cavity in the cerebral cortex was studied 1 to 3 months after transplantation, utilizing scanning electron microscopy of vascular corrosion casts. The grafts were easily identified and the outer surface of the graf...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(95)00304-9
更新日期:1995-05-29 00:00:00
abstract::This study compared the responsivity of alpha 2-adrenoceptors to agonists in normotensive (WKY) and genetically hypertensive (SH) rats. Clonidine produced a greater degree of analgesia in SH as compared to WKY rats. This analgesia was antagonized by yohimbine. Neither naphazoline nor 4-hydroxy-clonidine produced analg...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)90340-8
更新日期:1984-06-25 00:00:00
abstract::Transthyretin (TTR) is mainly expressed in the liver and choroid plexus of the brain. The majority of familial amyloidotic polyneuropathy cases are caused by a mutant TTR gene. The origin of the TTR deposited in the peripheral nervous system is unknown. We studied the expression of TTR in the peripheral nerves of norm...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2010.06.017
更新日期:2010-08-12 00:00:00
abstract::An investigation of reflex responses of leg muscles to sural stimulation during stepping was performed on human subjects. Non-noxious electrical stimulation applied during the swing phase or the latter half of the stance phase produced a mixed increase and decrease of EMG activity in the hamstring muscles. No response...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(83)90123-3
更新日期:1983-12-12 00:00:00
abstract::Rats anticipate a scheduled daily meal by entrainment of a circadian pacemaker separate from the light-entrainable circadian pacemaker located in the suprachiasmatic nuclei (SCN). The site and molecular mechanisms of the food-entrainable pacemaker are unknown. The intrinsic period (tau) of the SCN pacemaker is signifi...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(01)03042-6
更新日期:2001-11-23 00:00:00
abstract::We studied the short- and long-term epileptogenic effects of massed stimulation (MS) of the piriform cortex. Sprague-Dawley rats with electrodes implanted bilaterally in the anterior piriform cortex and the dorsal and ventral hippocampi underwent MS: electrical stimulation of the left piriform cortex every 5 min for 6...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(97)00071-1
更新日期:1997-04-18 00:00:00
abstract::Using fMRI, cerebral activations were studied in 24 classically-trained keyboard performers and 12 musically unskilled control subjects. Two groups of musicians were recruited: improvising (n=12) and score-dependent (non-improvising) musicians (n=12). While listening to both familiar and unfamiliar music, subjects eit...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2015.06.050
更新日期:2015-10-22 00:00:00
abstract::Mouse neopallium was disaggregated at 3 developmental stages (E15, E18, PO) and grown in colony cultures for 7 days. On the seventh day of culturing the colonies of cells were transplanted into the cerebellums of neonatal mice. After 3 weeks the astrocytes within the transplants were identified with GFAP immunoperoxid...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0165-3806(83)90096-2
更新日期:1983-01-01 00:00:00
abstract::The use of the fluorescence retrograde double-labeling method has revealed that striatal neurons projecting to the globus pallidus in the squirrel monkey are mainly confined to the putamen whereas those projecting to the substantia nigra occur mostly in the caudate nucleus. Only about 10% of the striatal neurons were ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)91224-1
更新日期:1984-06-15 00:00:00
abstract::Microinjections of monosodium glutamate (MSG; 300 microgram/0.5 microliter) into the hippocampus of the adult rat result in only marginal damage to local neurons. Perforant path transections, removing glutamatergic afferents to hippocampal granule cells, make the latter markedly more vulnerable to a subsequent MSG inj...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(81)90978-1
更新日期:1981-05-04 00:00:00
abstract::Pretreatment with recombinant human interleukin-1 alpha (rhIL-1 alpha) 20 h before irradiation attenuates radiation-induced hyperthermia. Experiments were conducted to determine the role of antioxidant enzymes such as superoxide dismutase (SOD) and glutathione peroxidase (GSHPx) in rhIL-1 alpha-induced attenuation of ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(93)91576-e
更新日期:1993-03-19 00:00:00
abstract::The present investigations were designed to assess the effect of the serotoninergic system on luteinizing hormone (LH) and LH-releasing hormone (LH-RH) secretion in female rats aged 14 and 30 days. The administration of 5-hydroxytryptophan (5-HTP; 75 mg/kg i.p.) increased hypothalamic serotonin (5-HT) concentrations i...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(90)91634-s
更新日期:1990-07-16 00:00:00
abstract::Scratching elicited by the intrathecal (i.t.) administration of substance P (SP) into the lumbosacral spinal cord of rats was not reduced by spinalization or i.t. pretreatment with the analgesic morphine. Spinalization also did not affect scratching elicited by i.t. kainic acid and potentiated scratching elicited by i...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)90081-9
更新日期:1988-07-12 00:00:00
abstract::Extracellular field recordings were made in CA1 in the hippocampal explant cultures in oxygenated artificial cerebrospinal fluid. Schaffer collaterals were stimulated with 1-s trains of 60 Hz pulses every 10 min. Seizures were reliably elicited with progressive lengthening over 1-2 h. D-APV, an N-methyl-D-aspartate (N...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)91171-a
更新日期:1992-08-28 00:00:00
abstract::The size differences in the midsagittal cerebellum, its individual lobules and its layers are studied in homozygous diabetic (HOM) and heterozygous Brattleboro rats on postnatal days 12, 24 and 180. As has been reported for total cerebellar weight, no significant reduction in cerebellar size in HOM rats occurs at day ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0165-3806(86)90296-8
更新日期:1986-05-01 00:00:00
abstract::The control of hypoglossal motoneurons during sleep is important from a basic science perspective as well as to understand the bases for pharyngeal occlusion which results in the obstructive sleep apnea syndrome. In the present work, we used intracellular recording techniques to determine changes in membrane propertie...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(00)02955-3
更新日期:2000-12-08 00:00:00
abstract::The first phase of this study involves injecting a different fluorescent retrograde axonal tracer into the subthalamic nucleus, the substantia nigra, and the mesopontine tegmentum. Multiple labeled cells are found within the caudal third of the globus pallidus. The entopeduncular nucleus and adjacent basal forebrain s...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(89)90948-7
更新日期:1989-05-15 00:00:00
abstract::Binding sites for iodinated endothelin (ET)-2, ET-3 and vasoactive intestinal contractor (VIC) were visualised in the adult rat brain using quantitative autoradiography and have a similar anatomical distribution to that of ET-1 and sarafotoxin S6b. Highest densities of binding sites for all 5 labelled peptides were pr...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)90201-6
更新日期:1991-07-19 00:00:00
abstract::The activities of tyrosine hydroxylase and dopamine-beta-hydroxylase were measured in the medial basal hypothalamus and remaining hyothalamic tissue of female rats at various times during diestrus 2, proestrus and estrus. Tyrosine hydroxylase activity in the medial basal hypothalamus was significantly lower at 12.00 h...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(80)90407-2
更新日期:1980-09-08 00:00:00
abstract::The solitary tract nucleus (NTS) is the termination site for cranial visceral afferents-peripheral primary afferent neurons which differ by phenotype (e.g. myelinated and unmyelinated). These afferents have very uniform glutamate release properties calculated by variance mean analysis. In the present study, we optical...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2009.11.042
更新日期:2010-02-02 00:00:00
abstract::The role of periventricular tissue surrounding the anteroventral third ventricle (AV3V) in mediating drinking behavior induced by angiotensin II was investigated rats. Electrolytic lesions which bilaterally destroyed preoptic-hypothalamic periventricular tissue surrounding AV3V abolished drinking responses normally el...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(78)90592-9
更新日期:1978-06-23 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::Developmental alcohol exposure can permanently alter brain structures and produce functional impairments in many aspects of behavior, including learning and memory. This study evaluates the effect of neonatal alcohol exposure on adult neurogenesis in the dentate gyrus of the hippocampus and the implications of such ex...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2011.07.027
更新日期:2011-09-15 00:00:00