Abstract：
:It has been suggested that the stimulation of the secretion of PRL by the alpha 2 adrenergic receptor antagonists (yohimbine, piperoxane) results from blockade of an inhibitory influence imposed on PRL release by the central alpha 2 receptors (7, 15). Our present results do not support these conclusions for the following reasons: 1) The effectiveness of the alpha 2 receptor antagonists yohimbine (YOH), rauwolscine (RAU), Wy 26392 and idazoxan (IDAZ) respectively to activate secretion of PRL was not related to their alpha 2 antagonist potencies. RAU was more effective in activation of PRL secretion than either YOH or Wy 26392 although it had a similar alpha 2 antagonist activity, while IDAZ, the most potent alpha 2 blocker among the four compounds, did not stimulate PRL secretion. 2) The PRL-releasing effect of YOH or Wy 26392 was reversed by the alpha 2 agonist clonidine but the same effect of RAU was not, speaking against a common alpha 2-mediated mechanism of action of the three antagonists. 3) The PRL-stimulating effect of YOH, RAU or Wy 26392 persisted following inhibition of NE synthesis and presumably release with FLA 63, DDC or combination of reserpine and DDC. 4) Conversely, we found no indication for an inhibiting influence of activation of the alpha 2 receptors on the secretion of PRL. We conclude that the stimulation of PRL secretion by the alpha 2 receptor antagonists is not derived from blockade of the central alpha 2 receptors but from other, not yet defined properties of the drugs.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Jurcovicová J,Le T,Krulich Ldoi
10.1016/0361-9230(89)90184-6subject
Has Abstractpub_date
1989-12-01 00:00:00pages
425-32issue
6eissn
0361-9230issn
1873-2747pii
0361-9230(89)90184-6journal_volume
23pub_type
杂志文章abstract：:A high correlation between alcohol use and smoking has long been suggested by epidemiological data. We examined the potential behavioral interactions between ethanol and nicotine using ethanol-induced motor incoordination as the test response in mice. Effect of pretreatment of various doses of (-)-nicotine, (-)-cotini...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(93)90314-2
更新日期：1993-01-01 00:00:00
abstract：:The use of neurons induced from stem cells has been introduced as an effective strategy for promoting peripheral nerve regeneration (PNR). The evolution and role of native denervated Schwann cells (SCs) were often ignored when exploring the mechanisms underlying neural transplantation therapy for PNR. The aim of this ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.03.005
更新日期：2018-05-01 00:00:00
abstract：:We showed previously that the number and time of spike-wave discharges (SWDs) were increased after intraperitoneal (i.p.) injection of lipopolysaccharide (LPS), an effect, which was completely abolished by cyclooxygenase-2 (COX-2) inhibitor indomethacin (IND) pretreatment in Wistar Albino Glaxo/Rijswijk (WAG/Rij) rats...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2014.03.003
更新日期：2014-05-01 00:00:00
abstract：:Somatosensory input to 431 neurons in MsI has been studied in unanesthetized, paralyzed raccoons (Procyon lotor). The type of sensory input to neurons in lateral sigmoid gyrus (cytoarchitectonic area 4) and in posterior sigmoid gyrus (areas 4 and 3a) was not significantly different. Of these neurons, 36% were activate...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(90)90146-q
更新日期：1990-06-01 00:00:00
abstract：:A biotinylated oligonucleotide probe was used to demonstrate the presence in the heart of the portion of the proopiomelanocortin messenger RNA which contains the sequence for beta-endorphin. The probe indicated the presence of beta-endorphin messenger RNA in cardiac tissue and specifically in the cardiac muscle cell. ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(92)90045-y
更新日期：1992-03-01 00:00:00
abstract：:The inhibition of excitatory mechanisms by components of low molecular weight, isolated from spiders and solitary wasps, such as, the acyl-polyamines, has demonstrated, on the one hand, neuroprotection potential, and on the other hand, it is well known that some arthropod venom components have convulsant activity. Whi...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(00)00300-2
更新日期：2000-08-01 00:00:00
abstract：:Single unit recordings were used to map the spatial distribution of motor (MI) cortical influences on thalamic somatosensory relay nuclei in the rat. A total of 215 microelectrode penetrations were made to record single neurons in tracks through the medial and lateral ventroposterior (VPM and VPL), ventrolateral (VL),...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(90)90213-j
更新日期：1990-02-01 00:00:00
abstract：:This review focuses on the maturation of brain white-matter, as revealed by magnetic resonance (MR) imaging carried out in healthy subjects. The review begins with a brief description of the nature of the MR signal and its possible biological underpinnings, and proceeds with a description of MR findings obtained in ne...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(00)00434-2
更新日期：2001-02-01 00:00:00
abstract：:Age-related macular degeneration (AMD) is the leading cause of irreversible blindness in people over 60 years of age in the US and many other developed countries. Increasingly sophisticated methods for the diagnosis and treatment of macular degeneration are not effective for the majority of patients in whom late stage...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/S0361-9230(03)00072-8
更新日期：2004-02-15 00:00:00
abstract：:GnRH release from hypothalamic explants from young and aged male Wistar-Kyoto rats was evaluated following stimulation with glutamate receptor agonists. Glutamate stimulated GnRH release to a similar extent in hypothalami from young and old animals, whereas N-methyl-D-Aspartate (NMDA) and kainate appeared more efficac...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(96)00199-2
更新日期：1996-01-01 00:00:00
abstract：:Glucokinase (GCK) may be involved in inflammatory pathological changes, while the P2X3 receptor in the stellate ganglia (SG) is related to diabetic cardiac autonomic neuropathy. In this study, we explored the relationship between the upregulated GCK in SG and diabetic cardiac sympathy. The expression and location of G...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.10.004
更新日期：2020-12-01 00:00:00
abstract：:The neuronal networks of the frontal lobe that represent motor or executive memories are probably the same networks that cooperate with other cerebral structures in the temporal organization of behavior. The prefrontal cortex, at the top of the perception-action cycle, plays a critical role in the mediation of conting...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(99)00258-0
更新日期：2000-07-15 00:00:00
abstract：:The effects of administration of isoproterenol, a beta-adrenergic agonist, and angiotensin II, a peptide, separately and in combination, on water intake and blood pressure of rats were studied. The results of 6 factorially designed studies in which 4 different doses of each compound were administered revealed that wat...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90099-0
更新日期：1983-03-01 00:00:00
abstract：:A current response induced by superfusing adenosine was examined in substantia gelatinosa (SG) neurons of adult rat spinal cord slices by using the whole-cell patch-clamp technique. In 78% of the neurons examined, adenosine induced an outward current at -70 mV [18.8 +/- 1.1 pA (n = 98) at 1mM] in a dose-dependent mann...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2004.05.002
更新日期：2004-07-30 00:00:00
abstract：:Spinocerebellar ataxia type 2 is caused by a polyglutamine stretch in the protein ataxin-2 that is due to an expansion of a CAG repeat in the spinocerebellar ataxia-2 gene. The function of wild-type ataxin-2 has not been clarified. A widespread distribution of this protein throughout the brain has been reported. We ex...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(01)00601-3
更新日期：2001-10-01 00:00:00
abstract：:In response to the growing interest in the prosimian Microcebus murinus for studies on cerebral aging, the stereotaxic atlas of its brain was carried out in view of further anatomical, biochemical, electrophysiological, and behavioral investigations as well as for therapeutic experiments. This primate, which could be ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(97)00458-9
更新日期：1998-05-01 00:00:00
abstract：:We investigated whether a continuous supply of glial cell line-derived neurotrophic factor (GDNF) via encapsulated genetically modified cells can promote survival and fiber outgrowth from xenotransplanted human dopaminergic neurons. Cells genetically engineered to continuously secrete GDNF were confined in hollow fibe...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2005.04.009
更新日期：2005-07-30 00:00:00
abstract：:Autophagy is the lysosome-mediated bulk degradation of cellular components for material recycling to maintain cellular homeostasis. Autophagy was initially regarded as a nonselective process, however, recent evidence indicates that this process can in fact be highly selective, especially for targeting and degrading or...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2017.11.009
更新日期：2018-03-01 00:00:00
abstract：:The distribution of enkephalin-like cell bodies in the thalamus of the rat was studied by means of intratissular injections of colchicine and using an indirect immunoperoxidase technique. The densest clusters of immunoreactive perikarya were observed in the nuclei geniculatum lateralis ventralis, medialis dorsalis, ce...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(89)90209-8
更新日期：1989-10-01 00:00:00
abstract：:Intelligence depends on the ability of the brain to acquire and apply rules and representations. At the neuronal level these properties have been shown to critically depend on the prefrontal cortex. Here we present, in the context of the Distributed Adaptive Control architecture (DAC), a biologically based model for f...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2010.11.008
更新日期：2011-06-30 00:00:00
abstract：:Zinc is a basic trace element that plays important roles in brain and, consequently, its homeostasis needs to be critically controlled. High zinc concentrations in the interneuron synaptic space may induce neuronal death through mechanisms still partially solved. Undifferentiated pheochromocytoma (PC12) cells have bee...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2009.11.008
更新日期：2010-03-16 00:00:00
abstract：:The effect of environmental odors emanating from large-scale hog operations on the mood of nearby residents was determined using the POMS (Profile of Mood States). The scores for six POMS factors and the TMD (total mood disturbance score) for 44 experimental subjects were compared to those of 44 control subjects who w...
journal_title：Brain research bulletin
pub_type： 临床试验,杂志文章
doi：10.1016/0361-9230(95)00015-1
更新日期：1995-01-01 00:00:00
abstract：:Waxing and waning electrographic responses (augmenting) and primary evoked responses could be induced in restricted regions of hippocampus, thalamus, and skeletal muscle by bipolar, low-frequency (7-10 Hz), low-amplitude (35 mV-4V) stimulation of selected sites within the hippocampus or thalamus of rabbits. Induction ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(77)90003-x
更新日期：1977-03-01 00:00:00
abstract：:The neuronal tracer DiI was applied to different brain centers of the rainbow trout in order to study the connections of pretectal nuclei. Our results showed that some pretectal nuclei receive a direct projection from the contralateral retina: the parvocellular superficial pretectal nucleus, the central pretectal nucl...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.10.020
更新日期：2008-03-18 00:00:00
abstract：:Intra-arterial administration of papaverine has been revealed to cause an increase in the blood-brain tumor barrier (BTB) permeability. The exact mechanism of papaverine opening the BTB in chemotherapy of malignant cerebral tumors, however, has not been well described. We used a rat brain glioma (C6) model for studyin...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2010.08.009
更新日期：2010-11-20 00:00:00
abstract：:We examined whether reticulospinal sympathoexcitatory neurons in the rostral ventrolateral medulla (RVLM) have muscarinic receptors and ACh inputs, and whether these cholinergic mechanisms on RVLM neurons are involved in the pressor response induced by peripheral administration of physostigmine. Microiontophoretic app...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(96)00256-0
更新日期：1997-01-01 00:00:00
abstract：:Abundance of muscle spindles is most likely related to gradual recruitment and functional specialization of motor units, as well as to their fundamental role in reflex intermuscular interaction and cooperation with other sensory systems. Spindle afferents per se usually convey ambiguous kinesthetic information to the ...
journal_title：Brain research bulletin
pub_type： 评论,杂志文章
doi：10.1016/j.brainresbull.2007.12.002
更新日期：2008-03-28 00:00:00
abstract：:Groups of male Sprague-Dawley rats were predominantly fed either a high-fat or a high-carbohydrate (CHO) diet. For designated 2-day periods, their diets were switched. After baseline measurements of food and water intake, the rats were made diabetic by injections of either 40 or 46-50 mg/kg streptozotocin. Food and wa...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90100-0
更新日期：1986-12-01 00:00:00
abstract：PURPOSE:We assessed the potential of resting-state fMRI lag analysis (RSLA) in detecting epileptic activation and in estimating anti-epileptic effects of Levetiracetam (LEV) in Rolandic epilepsy. METHODS:Forty-three children with Rolandic epilepsy underwent simultaneous EEG-fMRI. They were grouped into LEV vs drug-naï...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.05.016
更新日期：2020-09-01 00:00:00
abstract：:This paper provides an introduction to a special issue dedicated to the action of environmental estrogens on neural circuits and behavior. The problem of endocrine disrupting chemicals (EDCs), i.e. chemicals that have the capacity to interfere with the endocrine system, has gained increasing attention as it has become...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2005.01.007
更新日期：2005-04-15 00:00:00
