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Lappuse 1 no 49 rezultātiem
Pro-apoptotic properties of morphine in neuroblastoma × glioma NG108-15 hybrid cells: modulation by yohimbine.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Short-term incubation with pharmacologically relevant concentrations of morphine has been shown to transiently affect the metabolism and redox status of NG108-15 cells through δ-opioid receptor stimulation, but apparently did not provoke cell death. The present work tries to determine if incubation
Yohimbine protects against endotoxin-induced acute lung injury by blockade of alpha 2A adrenergic receptor in rats.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
BACKGROUND
Alpha 2A adrenergic receptor (AR) is a subtype of α2 AR belonging to G protein-coupled receptors, and exerts a variety of biological effects. Recent studies have demonstrated that the α2A AR activation was closely related with inflammatory reaction. The present study aimed to investigate
Yohimbine ameliorates lipopolysaccharide-induced acute kidney injury in rats.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Sepsis-induced acute kidney injury (AKI) is frequently observed in the intensive care unit. We previously revealed that yohimbine, an α2-adrenoceptor antagonist, has protective effects on renal ischemia/reperfusion injury-induced AKI in rats. This study aimed to investigate the
Temporal regulation by adrenergic receptor stimulation of macrophage (M phi)-derived tumor necrosis factor (TNF) production post-LPS challenge.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Macrophage (M phi) responsiveness can be regulated by various mediators, including those which emanate from, and mimic, the sympathetic nervous system. Whereas beta-adrenergic agonists suppress, alpha 2-adrenergic agonists augment lipopolysaccharide (LPS)-stimulated tumor necrosis factor (TNF)
Alpha-adrenergic receptors mediate the hypertriglyceridemia induced by endotoxin, but not tumor necrosis factor, in rats.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
We assessed the role of catecholamines in mediating the hypertriglyceridemia induced by lipopolysaccharide (LPS) or tumor necrosis factor-alpha (TNF alpha) in rats by employing specific adrenoreceptor antagonists. Pretreatment with phentolamine, an alpha-antagonist, but not propranolol, a
Antagonism of cocaine-induced hepatotoxicity by the alpha adrenergic antagonists phentolamine and yohimbine.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
The ability of the alpha adrenoreceptor antagonists phentolamine and yohimbine to antagonize cocaine-induced hepatotoxicity was determined in phenobarbital-induced B6C3/F1 mice. Hepatotoxicity was assessed by the histologic extent of necrosis, incidence of latent lethality and increases in serum
Antiarrhythmic and antinecrotic effects of yohimbine stereoisomers in rats during coronary occlusion and reperfusion.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
In pentobarbital-anesthetized rats the left coronary artery was ligated for 5 or 30 min and then opened for reperfusion of the ischemic myocardial area. Twelve min prior to the coronary occlusion yohimbine stereoisomers, namely corynanthine and rauwolscine, or saline solution were given
Renoprotective effect of yohimbine on ischaemia/reperfusion-induced acute kidney injury through α2C-adrenoceptors in rats.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Excitation of renal sympathetic nervous activity and the resulting increased levels of renal venous norepinephrine play important roles in renal ischaemia/reperfusion injury in rats. This study examined the effects of yohimbine, a non-selective α2-adrenoceptor antagonist, on renal venous
Yohimbine promotes cardiac NE release and prevents LPS-induced cardiac dysfunction via blockade of presynaptic α2A-adrenergic receptor.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Myocardial depression is an important contributor to mortality in sepsis. We have recently demonstrated that α2-adrenoceptor (AR) antagonist, yohimbine (YHB), attenuates lipopolysaccharide (LPS)-induced myocardial depression. However, the mechanisms for this action of YHB are unclear. Here, we
Interactions between the alpha(2)-adrenergic and the prostaglandin response in the regulation of macrophage-derived tumor necrosis factor.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Mediators such as prostaglandin E(2) (PGE(2)) and norepinephrine (NE) regulate macrophage (Mφ) responsiveness. Activation of alpha(2)-adrenergic receptors on Mφ potentiates lipopolysaccharide (LPS)-stimulated tumor necrosis factor (TNFalpha) production. PGE(2) inhibits LPS-stimulated
Stimulation of alpha-adrenergic receptor augments the production of macrophage-derived tumor necrosis factor.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Accumulating evidence supports the hypothesis that neuroendocrine hormones may participate in immunologic processes. In our study we have determined that UK-14304 (UK) and norepinephrine (NE), both alpha 2-adrenergic agonists, can augment LPS-stimulated TNF from elicited macrophages (MO). The
Effect of intraperitoneally administered propentofylline in a rat model of postoperative pain
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Background: In this study, we sought to evaluate whether systemic propentofylline (PPF) has antiallodynic effects in a rat model of postoperative pain, and to assess the mechanism involved.
Methods:
Effects of dexmedetomidine on regulating pulmonary inflammation in a rat model of ventilator-induced lung injury.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
BACKGROUND
We sought to elucidate the effects of dexmedetomidine, a selective alpha2-adrenergic receptor agonist, on the regulation of pulmonary inflammation in ventilator-induced lung injury (VILI) in a rat model.
METHODS
A total of 64 adult male Sprague-Dawley rats were assigned to receive either
Antioxidant eugenosedin-A protects against lipopolysaccharide-induced hypotension, hyperglycaemia and cytokine immunoreactivity in rats and mice.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Eugenosedin-A has been demonstrated to possess alpha/beta-adrenoceptor and serotonergic receptor blocking activities. We have investigated by what mechanisms eugenosedin-A prevents lipopolysaccharide (LPS)-induced hypotension, vascular hyporeactivity, hyperglycaemia, oxidative injury or inflammatory
Characterization of adrenoceptor involvement in skeletal and cardiac myotoxicity Induced by sympathomimetic agents: toward a new bioassay for beta-blockers.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Excessive levels of catecholamines have long been known to be cardiotoxic, but less well known are their toxic effects on skeletal muscle. By using an antimyosin monoclonal antibody and quantitative methods to measure the extent of myocyte necrosis, and by employing modulators of adrenoceptors
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