Abstract：
:The effects of intracerebroventricular (ICV) colchicine (70 micrograms per rat) on systolic pressures and levels of hexokinase activity in the hypothalamic paraventricular (PVH) and supraoptic (SON) nuclei were investigated in adult normotensive and spontaneously hypertensive rats (SHR). One day after colchicine injection, systolic pressures had dropped significantly in Sprague-Dawley (SD) rats, Wistar-Kyoto (WKY) rats, and SHR; the largest decrease was seen in SHR. Postinjection pressures in SHR were within the normotensive range. No further decreases were observed two days after injections. Quantitative analysis of hexokinase activity in control animals verified that the parvo- and magnocellular PVH (but not SON) of SHR contained significantly lower levels of hexokinase than in WKY or SD rats. Two days after colchicine injection, hexokinase activities in pPVH and mPVH were similar in all three strains. Activity had decreased significantly in SD and WKY rats. In SHR, no differences between control and postinjection values were found. Hexokinase activity in SON was significantly decreased to the same extent in all strains. As metabolic activity in the pPVH, mPVH, and SON decreased after colchicine injection in normotensive rats whereas no such decreases occurred in the pPVH and mPVH of SHR, the findings suggest that colchicine may have differential effects on the metabolic activity of specific cell groups in brain depending on the physiological state of the animal.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Krukoff TL,Vincent DHdoi
10.1016/0361-9230(89)90162-7subject
Has Abstractpub_date
1989-07-01 00:00:00pages
47-51issue
1-2eissn
0361-9230issn
1873-2747pii
0361-9230(89)90162-7journal_volume
23pub_type
杂志文章abstract：:Retinal injuries and diseases are major causes of human disability involving vision impairment by the progressive and permanent loss of retinal neurons. During development, assembly of this tissue entails a successive and overlapping, signal-regulated engagement of complex events that include proliferation of progenit...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2018.10.016
更新日期：2019-09-01 00:00:00
abstract：:Constant light exposure (LL) can result in "splitting" of circadian rhythms into two components coupled about 12 hr apart. Splitting has been interpreted as evidence for the presence of two main oscillators or groups of oscillators underlying circadian rhythms. Abolition of splitting after unilateral suprachiasmatic n...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(90)90164-u
更新日期：1990-04-01 00:00:00
abstract：:Urethane is often used as a central anaesthetic in neurophysiological studies of drug effects. In this experiment, the effect of morphine on cortical EEG and single units of hippocampus and medial thalamus were compared in urethane-anaesthetized and paralyzed-awake rats. In each case, there was evidence of a morphine-...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(80)90183-5
更新日期：1980-03-01 00:00:00
abstract：:Five polymorphisms (rs4713916, rs4713902, rs1360780, rs9296158 and rs3800373) of FKBP5 gene were analyzed in a case-control study comprising 423 Mexican individuals (146 individuals with suicide attempt and 277 controls). The SNP's were genotyped using the TaqMan-allelic assay. Genotype and allele frequencies were com...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.11.002
更新日期：2021-01-01 00:00:00
abstract：:Calcium channels affect many neuronal functions, including membrane electrical excitability, synaptic transmission, cellular homeostasis, gene transcription, growth, and development. We used recently developed methods for serum-free culture of adult and embryonic rat neurons to study the development of voltage-sensiti...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(98)00147-6
更新日期：1999-01-01 00:00:00
abstract：:We previously showed that inhibition of brain NO production suppresses sleep in rats and rabbits. In the present experiments we studied the effects of stimulation of NO-receptive brain mechanisms on sleep. Male rats were injected intra-cerebroventricularly with the NO donor S-nitroso-N-acetylpenicillamine (SNAP, 400 m...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(96)00227-4
更新日期：1996-01-01 00:00:00
abstract：:Calcitonin, a peptide hormone expressed in C-cells of the thyreoid gland, as well as capsaicin, isolated from chili, both, modify intracellular signalling in nociceptive neurones. The pathways triggered by the activation of either of these receptors results in a modulation of the intracellular calcium ([Ca(2+)](i)) co...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.02.006
更新日期：2011-04-25 00:00:00
abstract：:The antinociceptive response of mice to the amino acid L-arginine (L-ARG) has been attributed to either an opioid mechanism or a non-opioid but nitric oxide (NO)-dependent mechanism. Earlier it was reported that the mechanism of nitrous oxide-induced antinociception involved opioid components and was also dependent on...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2006.05.008
更新日期：2006-07-31 00:00:00
abstract：:Single-unit recordings were made from lateral hypothalamic area (LHA) neurons of infant (8 through 21 days of age) male and female albino rats. Basal (or spontaneous) firing rates of LHA neurons were recorded for 20 min from rats 8 through 21 days of age, and mean basal firing rates did not differ across ages. Basal f...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(76)90081-2
更新日期：1976-11-01 00:00:00
abstract：:The study examines the influence of vestibular and leg proprioceptive cues on the maintenance of the body vertical in human stance. Vestibular body orientation cues were changed by applying bipolar currents to both mastoid bones (cosine-bell wave form of 3.3 s duration, 1 mA current intensity). Proprioceptive input wa...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(96)00138-4
更新日期：1996-01-01 00:00:00
abstract：:Chronic cerebral hypofusion (CCH) after bilateral carotid artery occlusion (2VO) causes cognitive damage and neuronal degeneration in the cortex and hippocampal CA1 area, and influences the oxygen and glucose supply in the brain which often results in metabolic alterations and oxidative stress. AMP-activated protein k...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.03.019
更新日期：2018-06-01 00:00:00
abstract：:The olfactostriatum is a portion of the basal ganglia of snakes situated ventromedially to the nucleus accumbens proper. It receives a major vomeronasal input from the nucleus sphericus, the primary target of accessory olfactory bulb efferents. Recently, the ophidian olfactostriatum has been characterized on the basis...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2005.02.020
更新日期：2005-09-15 00:00:00
abstract：:The distribution of substance P-containing fibers in the cerebral cortex and the hippocampal formation of the Japanese monkey (Macaca fuscata fuscata) was studied by immunohistochemistry using a monoclonal antibody raised against substance P. The results were compared with the distribution in homologous regions of the...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(89)90057-9
更新日期：1989-02-01 00:00:00
abstract：:Field-evoked potentials from the main olfactory bulb in response to stimulation of the olfactory nerve and lateral olfactory tract were measured without and with conditioning stimulation of the locus coeruleus noradrenergic system. The locus coeruleus conditioning stimulus suppressed or inhibited the late components o...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(87)90213-9
更新日期：1987-06-01 00:00:00
abstract：:In vitro and in vivo studies have demonstrated that lithium treatment can protect neurons against excitotoxic and ischemic damage. Yet the possible beneficial effect of chronic low dose lithium on a model of traumatic brain injury (TBI) has not been intensively investigated. In this study, lithium (1 mmol/kg) was give...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2010.07.008
更新日期：2010-10-30 00:00:00
abstract：:We have studied the effects of 14-methoxymetopon (HS 198), a potent opioid agonist, on the responses to the tail electric stimulation test and plus-maze activity of adult male rats. The prototype mu agonist morphine was used as the drug of reference. Besides we addressed the effects of HS 198 on the serum corticostero...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(01)00760-2
更新日期：2002-03-15 00:00:00
abstract：:On the basis of the evidence that approximately 45% of Schaffer collateral boutons are zinc-positive, zinc release from Schaffer collaterals and its action were examined in hippocampal slices. When zinc release from Schaffer collaterals was examined using ZnAF-2, a membrane-impermeable zinc indicator, ZnAF-2 signal in...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2005.10.001
更新日期：2006-02-15 00:00:00
abstract：:Sex differences are prominent influences on spatial performance. One of the most common tasks to assess sex differences in spatial navigation in rodents is the Morris water task (MWT). In this task rats swim in a pool of water to locate a hidden platform employing the topographical relationships among the distal visua...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2009.10.017
更新日期：2010-01-15 00:00:00
abstract：:The large neurons in the rat neostriatum consist of at least two morphologically distinct types in Golgi preparations: Type I large cells had smooth somata whereas type II large cells had somatic spines. In the present study, the ultrastructural morphology of the Golgi-stained large neostriatal neurons in the rat was ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(82)90091-0
更新日期：1982-06-01 00:00:00
abstract：:After sustaining a traumatic brain injury (TBI), a person's ability to make daily decisions can be affected. Simple tasks such as, deciding what to wear are no longer effortless choices, but are instead difficult decisions. This study explored the use of a discrimination task with a magnesium treatment in order to exa...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.02.019
更新日期：2018-05-01 00:00:00
abstract：:During a single-step visual tracking task of monkeys, parametric changes of the wrist extension-flexion movement and related discharge rate changes of pyramidal tract neurons (PTNs) of hand-arm motor area were studied. The task consisted of preparatory, precontraction, contraction and target periods. If the displaceme...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(79)90289-2
更新日期：1979-03-01 00:00:00
abstract：OBJECTIVE:Transcranial near-infrared stimulation (tNIRS) can penetrate the scalp and skull and can reach the superficial layers of the cerebral cortex. In this study, we evaluated whether an 820-nm tNIRS can modulate the excitability of the primary motor cortex (M1) as measured by transcranial magnetic stimulation (TMS...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2019.12.007
更新日期：2020-02-01 00:00:00
abstract：:Metformin (MET),an antidiabetic drug, has shown antioxidative and neuroprotective effects. In the present investigation, we aimed to study the probable effects of MET on cerebral ischemia/reperfusion in rats. Rats underwent cerebral ischemia/reperfusion and MET was administered orally at doses of 100 and 200 mg/kg for...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.07.015
更新日期：2020-10-01 00:00:00
abstract：:Since years there is a hotly discussed dispute whether event-related potentials are either generated by an evoked component or by resetting of ongoing phase. We argue that phase-reset must not be proven in order to accept the general involvement of phase in ERP-generation as it is only one of several possible mechanis...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.03.025
更新日期：2011-07-15 00:00:00
abstract：:"Responder" Sprague-Dawley (SD) rats that were sensitive to electroacupuncture (EA) in an acute thermal pain test (i.e. tail flick latency [TFL] test) maintained sensitivity to EA in the warm allodynia test after peripheral nerve injury. Similarly, the "non-responder" SD rats that were insensitive to EA in the TFL tes...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.07.006
更新日期：2007-10-19 00:00:00
abstract：:Recent studies demonstrate that activation of Ca(2+)-permeable N-methyl-D-aspartate (NMDA) receptors upregulates phosphorylation of mitogen-activated protein kinases (MAPKs) in heterologous cells and neurons. In cultured rat striatal neurons, the present work systematically evaluated the role of a number of protein ki...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2008.11.004
更新日期：2009-03-30 00:00:00
abstract：:This study tested for the presence of androgen receptor-immunoreactivity in somatostatin, galanin, vasopressin, corticotropin-releasing hormone, and oxytocin neurons in the rat forebrain. The brains of adult male Sprague-Dawley rats were fixed with 4% paraformaldehyde. Androgen receptor was visualized in coronal secti...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(94)90117-1
更新日期：1994-01-01 00:00:00
abstract：:The projections from the rat medial prefrontal cortex to the amygdaloid complex were investigated using retrograde transport of fluorescent dyes and anterograde transport of horseradish peroxidase-WGA. The ventral anterior cingulate, prelimbic, infralimbic and medial orbital areas and the taenia tecta were found to pr...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90237-6
更新日期：1986-09-01 00:00:00
abstract：:Ethanol has a pharmacological profile similar to other centrally acting drugs, which facilitate GABAergic transmission. GABA is known to produce its effects by increasing the conductance to Cl- ions. In this study, we have examined the effect of ethanol on GABA-induced 36Cl-influx in primary spinal cord cultured neuro...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90168-1
更新日期：1986-07-01 00:00:00
abstract：:In alpha-chloralose-anesthetized Sprague-Dawley (SD) rats with unilateral nucleus tractus solitarius (NTS) lesions, injection of the alpha(1)-adrenergic receptor agonist phenylephrine into the contralateral NTS dose-dependently increased arterial pressure (AP). Bunazosin (0.1 nmol) or prazosin (0.36 nmol), an alpha(1)...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(02)00757-8
更新日期：2002-08-15 00:00:00
