Abstract：
:Hormones may produce long-term effects on excitability by regulating K+ channel gene expression. Previous studies demonstrated that administration of dexamethasone, a glucocorticoid receptor agonist, to adrenalectomized rats, rapidly induces Kv1.5 K+ channel expression in the ventricle of the hear. Here, RNase protection assays and Northern blots are used to examine the cell type specificity of dexamethasone action and to test whether Kv1.5 gene expression can be regulated by a physiological stimulus. We show that Kv1.5 mRNA expression in the central nervous system is highest in the hypothalamus. However, dexamethasone treatment of adrenalectomized rats fails to affect Kv1.5 mRNA levels in hypothalamus or lung. In contrast, dramatic upregulation of Kv1.5 mRNA is seen in skeletal muscle and pituitary. Increased Kv1.5 message also found in isolated ventricular cardiomyocytes following in vivo treatment with dexamethasone. Finally, it is shown that cold stress of intact rats significantly increases cardiac Kv1.5 mRNA expression. We conclude that dexamethasone induction of Kv1.5 gene is tissue-specific. Furthermore, our results suggest that stress may act via glucocorticoids to increase Kv1.5 gene expression in ventricular cardiomyocytes. Hence, K+ channel gene expression can be influenced by physiological and pharmacological stimuli.
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Levitan ES,Hershman KM,Sherman TG,Takimoto Ksubject
Has Abstractpub_date
1996-01-01 00:00:00pages
1001-6issue
7eissn
0028-3908issn
1873-7064pii
0028390896000950journal_volume
35pub_type
杂志文章abstract：:Dopamine (DA) is a major catecholamine neurotransmitter in the mammalian brain that controls neural circuits involved in the cognitive, emotional, and motor aspects of goal-directed behavior. Accordingly, perturbations in DA neurotransmission play a central role in several neuropsychiatric disorders. Somewhat surprisi...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2017.04.033
更新日期：2017-09-15 00:00:00
abstract：BACKGROUND:Alcohol use disorder (AUD) develops after chronic and heavy use of alcohol. Insomnia, a hallmark of AUD, plays a crucial role in the development of AUD. However, the causal mechanisms are unknown. Since chronic alcohol reduces acetylated histones and disrupts the epigenome, we hypothesized that chronic alcoh...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2020.108332
更新日期：2020-12-01 00:00:00
abstract：:Changes in brain reward and control systems of frontal cortical areas including the orbitofrontal cortex (OFC) are associated with alcohol use disorders (AUD). The OFC is extensively innervated by monoamines, and drugs that target monoamine receptors have been used to treat a number of neuropsychiatric diseases, inclu...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.04.019
更新日期：2018-07-15 00:00:00
abstract：:Using the technique of microelectrophoresis on spinal neurones in pentobarbitone-anaesthetized rats, (1S,3R)-1-aminocyclo-pentane-1,3-dicarboxylate (1S,3R-ACPD) reversibly and dose-dependently enhanced responses to alpha-amino-3-hydroxy-5-methyl-4-isoxazole-propionate (AMPA), kainate, N-methyl-D-aspartate (NMDA) and L...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(95)00046-9
更新日期：1995-08-01 00:00:00
abstract：:Nitric oxide synthase (NOS) enzyme activity was determined in a comprehensive selection of regions of the rat brain. The effects of lateral ventricular administration of N omega-nitro-L-arginine (L-NA, 30 micrograms) and its methyl ester (L-NAME, 3-100 micrograms) on NOS activity were examined in the ipsilateral and c...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(95)00036-6
更新日期：1995-06-01 00:00:00
abstract：:Orexin contributes to the expression of the cardiovascular and behavioural response of some forms of stress, including novelty stress. Thus, Almorexant, a dual receptor antagonist that blocks the two known orexin receptors, Ox1R and Ox2R, reduces these responses. However, it is not known if the reduction results from ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2014.09.012
更新日期：2015-02-01 00:00:00
abstract：:Tobacco addiction is highly co-morbid with a variety of mental health conditions, including schizophrenia, mood and anxiety disorders. Nicotine, the primary psychoactive compound in tobacco-related products is known to functionally modulate brain circuits that are disturbed in these disorders. Nicotine can potently re...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2020.108411
更新日期：2021-02-15 00:00:00
abstract：:Memory reactivation has been shown to open a time window for memory modulation. The majority of the methodological or pharmacological approaches target disruption of reconsolidation to weaken aversive memories. However, methods to improve appetitive memory persistence through reconsolidation or to reverse drug-induced...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.08.015
更新日期：2018-10-01 00:00:00
abstract：:Radioligand binding assays were used to demonstrate the presence of alpha 1, alpha 2 and beta receptors in rat spinal cord. Specific and saturable binding was exhibited for [3H]-WB 4101 (alpha 1), [3H]-aminoclonidine (alpha 2) and [3H]-dihydroalprenolol (beta). Binding was of high affinity and the total number of bind...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(82)90162-9
更新日期：1982-02-01 00:00:00
abstract：:Tobacco smoking is a preventable cause of morbidity and mortality throughout the world. Very high rates of tobacco smoking are seen in patients with schizophrenia. Importantly, smokers with schizophrenia generally have higher nicotine dependence scores, experience more severe withdrawal symptoms upon smoking cessation...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2011.01.044
更新日期：2012-03-01 00:00:00
abstract：:Most current pharmacologic antidepressant treatments target monoaminergic systems confronts some problems such as low rate of remission and high risk for relapse indicating new therapeutic strategy is urgently need. Evidences showed that impairments in mitochondrial function were associated with the pathogenesis of mo...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2016.02.031
更新日期：2016-06-01 00:00:00
abstract：:To study the effects of maternal alcohol ingestion on brain adenylate cyclase in offspring, rats were given ethanol in the drinking water before, during and after gestation. Fifteen-day-old pups from alcoholic mothers had reduced body and wet brain weight and protein content with normal concentrations of DNA and RNA i...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(83)90201-0
更新日期：1983-11-01 00:00:00
abstract：:ORL-1 agonists have been proposed as potential therapeutics for substance abuse based on their propensity to counter the effects of mu opioid agonists in several systems, and to inhibit mesolimbic dopamine release, while mostly being devoid of aversive properties. In support of this, ORL-1 agonists have been shown to ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2005.04.008
更新日期：2005-09-01 00:00:00
abstract：:The influence of naloxone (a narcotic antagonist), bicuculline (a GABA antagonist), phentolamine (an alpha-blocking agent), propranolol (a beta-adrenergic blocking agent), haloperidol (a dopaminergic blocking agent), methysergide (a serotonergic blocking agent) and atropine (a muscarinic blocking agent), on the antino...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(84)90143-6
更新日期：1984-06-01 00:00:00
abstract：:Previously we have reported that astrocytes deprived of glucose were highly vulnerable to peroxynitrite (Choi and Kim, J. Neurosci. Res. 54 (1998) 870; Neurosci. Lett. 256 (1988) 109; Ju et al., J. Neurochem. 74 (2000) 1989). Here we report that ciclopirox, which is clinically used as an anti-fungal agent, completely ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(02)00081-3
更新日期：2002-09-01 00:00:00
abstract：:Paeoniflorin (PF) is a major bioactive ingredient in Radix Paeonia alba roots that has low toxicity and has been shown to have neuroprotective effects. Our in vitro experiments suggested that PF affords a significant neuroprotective effect against MPP+-induced damage and apoptosis in PC12 cells through Bcl-2/Bax/caspa...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2017.01.009
更新日期：2017-04-01 00:00:00
abstract：:24S-hydroxycholesterol (24S-HC) is a brain-derived product of lipid metabolism present in the systemic circulation, where its level can change significantly in response to physiological and pathophysiological conditions. Here, using electrophysiological and optical approaches, we have found a high sensitivity to 24S-H...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2017.01.030
更新日期：2017-05-01 00:00:00
abstract：:Dopamine (DA) efflux from terminals of the mesocorticolimbic system is linked to incentive motivation, drug dependency and schizophrenia. Strategies for modulating dopaminergic activity have focused on transmitter receptors or the DA transporter, not on DA release, largely due to lack of systemically available drugs a...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2009.02.001
更新日期：2009-05-01 00:00:00
abstract：:Tolcapone and entacapone are catechol-O-methyltransferase (COMT) inhibitors used as adjuncts to levodopa in the treatment of Parkinson's disease (PD). The use of tolcapone has been limited by its hepatotoxicity, the cause of which remains uncertain. Tolcapone compound is an uncoupler of mitochondrial respiration in is...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2003.10.015
更新日期：2004-03-01 00:00:00
abstract：:The anticonvulsant action and the long-term effects on learning, memory and behavior of the new generation antiepileptic drug gabapentin (GBP) were investigated in immature animals. Kainic acid (KA) was administered to rats on postnatal day (P) 35. Animals were treated with GBP or saline from P36 to P75 and spontaneou...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(00)00103-9
更新日期：2001-01-01 00:00:00
abstract：:Drugs modulating the levels of specific central neurotransmitters may influence both the rate and amount of functional recovery after focal brain injuries such as stroke. Because such drugs may be effective long after brain injury, the "therapeutic window" may be widened beyond the first few hour after stroke and an e...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/s0028-3908(99)00249-x
更新日期：2000-03-03 00:00:00
abstract：:Increasing evidence suggests that oxidative stress may be implicated in the degeneration of dopaminergic neurons in Parkinson's disease (PD), and anti-oxidation have been shown to be effective to PD treatment. Myricetin has been reported to have the biological functions of anti-oxidation, anti-apoptosis, anti-inflamma...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2011.04.021
更新日期：2011-07-01 00:00:00
abstract：:Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels have a key role in the control of cellular excitability. HCN2, a subgroup of the HCN family channels, are heavily expressed in small dorsal root ganglia (DRG) neurons and their activation seems to be important in the determination of pain intensity. In...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2016.04.038
更新日期：2016-09-01 00:00:00
abstract：:The effect of neurotrophic factors on apoptosis induced by ionomycin, a potent Ca2+ ionophore, was investigated using cultured cortical neurons from embryonic rats. Brain-derived neurotophic factor (BDNF) and neurotrophin-3 (NT-3) prevented the ionomycin-mediated cell death in a dose-dependent manner. In contrast to t...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(98)00189-0
更新日期：1999-02-01 00:00:00
abstract：:In dorsal horn neurones of the cat spinal cord iontophoretically administered (+/-)-beta-p-chlorophenylglutamate (chlorpheg) markedly enhanced the excitatory responses induced by L-homocysteate, L-homocysteine sulphinate, S-sulpho L-cysteine, L-cysteate and quisqualate, while responses to NMDA, kainate, L-glutamate, L...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(85)90178-9
更新日期：1985-02-01 00:00:00
abstract：:Different neurotransmitter systems are involved in behavioural and molecular responses to morphine. The brain stress system is activated by acute administration of drugs of abuse, being CRF the main neuropeptide of this circuitry. In this study we have studied the role of CRF1R in the rewarding effects of morphine usi...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2014.12.021
更新日期：2015-08-01 00:00:00
abstract：:Both psychostimulants and antidepressants target monoamine transporters and, as a consequence, augment monoamine transmission. These two groups of drugs also increase motor activity in preclinical behavioural screens for antidepressants. Substance P-preferring receptor (NK1R) antagonists similarly increase both motor ...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2014.03.021
更新日期：2014-12-01 00:00:00
abstract：:The present study measured oxygen consumption and core body temperature following central injections of bombesin (1.0 microgram) in food-deprived rats. Oxygen consumption did not differ for bombesin- and control-injected rats while mean core body temperature decreased significantly following bombesin administrations. ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(84)90060-1
更新日期：1984-11-01 00:00:00
abstract：:Phenytoin (DPH) is a clinically useful sodium (Na) channel blocker with efficacy against partial and generalized seizures. We have developed a novel hydantoin compound (HA) using comparative molecular field analysis (CoMFA) and evaluated its effects on hNa(v)1.2 channels. Both DPH and HA demonstrated affinity for rest...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2006.11.001
更新日期：2007-03-01 00:00:00
abstract：:This paper evaluates the involvement of hippocampal ATP-sensitive potassium channels (K(ATP)) in learning and memory. After confirming expression of the Kir6.2 subunit in the CA3 region of C57BL/6J mice, we performed intra-hippocampal pharmacological injections of specific openers and blockers of K(ATP) channels. The ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2008.11.001
更新日期：2009-03-01 00:00:00
