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Haloperidol

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https://www.readbyqxmd.com/read/28547743/unremodelled-and-bradycardic-heart-of-the-anaesthetized-rabbit-is-applicable-for-detection-of-drug-induced-torsades-de-pointes-arrhythmias
#1
Mihoko Hagiwara, Seiji Shibuta, Kazuhiro Takada, Ryuichi Kambayashi, Misako Nakajo, Megumi Aimoto, Yoshinobu Nagasawa, Akira Takahara
BACKGROUND AND PURPOSE: Several rabbit proarrhythmia models have been recently developed by genetic or pharmacological methods to suppress the slow component of delayed rectifier K(+) currents in the ventricle, leading to reduction of the repolarization reserve. The present study was designed to characterize a novel rabbit in vivo proarrhythmia model with severe bradycardia caused by acute atrioventricular block (AVB). EXPERIMENTAL APPROACH: Bradycardia was induced in isoflurane-anaesthetized rabbits by creation of AVB using catheter ablation, and the ventricle was electrically driven at 60 beats min(-1) throughout the experiment except when extrasystole appeared...
May 26, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28523268/the-sedative-effect-of-propranolol-on-critically-ill-patients-a-case-series
#2
Junji Shiotsuka, Andrew Steel, James Downar
INTRODUCTION: Recent studies have examined the effectiveness of alpha-2 adrenergic agonists for controlling delirium and agitation. Propranolol, a non-selective beta-adrenergic antagonist with good penetration of the blood-brain barrier, has not been investigated for this purpose. MATERIALS AND METHODS: We retrospectively reviewed the medical records of all patients who were prescribed propranolol in our Medical Surgical ICU from January 1, 2010, to December 31, 2013...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28522847/a-molecular-basis-for-selective-antagonist-destabilization-of-dopamine-d3-receptor-quaternary-organization
#3
Sara Marsango, Gianluigi Caltabiano, Mireia Jiménez-Rosés, Mark J Millan, John D Pediani, Richard J Ward, Graeme Milligan
The dopamine D3 receptor (D3R) is a molecular target for both first-generation and several recently-developed antipsychotic agents. Following stable expression of this mEGFP-tagged receptor, Spatial Intensity Distribution Analysis indicated that a substantial proportion of the receptor was present within dimeric/oligomeric complexes and that increased expression levels of the receptor favored a greater dimer to monomer ratio. Addition of the antipsychotics, spiperone or haloperidol, resulted in re-organization of D3R quaternary structure to promote monomerization...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522313/neurotensin-in-the-nucleus-accumbens-reverses-dopamine-supersensitivity-evoked-by-antipsychotic-treatment
#4
Alice Servonnet, Ellie-Anna Minogianis, Claude Bouchard, Anne-Marie Bédard, Daniel Lévesque, Pierre-Paul Rompré, Anne-Noël Samaha
Long-term exposure to antipsychotics like haloperidol can increase sensitivity to dopamine agonist stimulation. This could contribute to treatment failure and increase relapse to psychosis. Chronic antipsychotic treatment elevates neurotensin levels in the nucleus accumbens (NAc), where the neuropeptide modulates dopamine function by signalling through NTS1 receptors. We hypothesized that increasing neurotensin activity in the NAc attenuates the expression of antipsychotic-induced dopamine supersensitivity, which is indicated by a potentiated psychomotor response to amphetamine...
May 15, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28521372/synthesis-and-characterization-of-new-azecine-derivatives-as-potential-neuroleptics
#5
Stephanie Zergiebel, Christian Fleck, Hans-Dieter Arndt, Christoph Enzensperger, Andreas Seeling
Dibenzo- and benzindolo-azecines represent a class of potential neuroleptics. To characterize the effectiveness at the dopamine and 5-HT2A-receptor representative structures were synthesized and tested by radio ligand binding studies, in vivo and in vitro studies.Neuroleptic potency and the risk of side effects of the prodrug 7-methyl-5,6,7,8,9,14-hexahydrodibenzo[d,g]azecin-3-yl isobutyrate, an ester derivative of the most promising azecine 7-methyl-5,6,7,8,9,14-hexahydrodibenzo[d,g]azecin-3-ol (LE404), was tested in vivo concerning conditioned avoidance response inhibition, locomotor activity and triggering of catalepsy vs...
May 18, 2017: Drug Research
https://www.readbyqxmd.com/read/28516373/class-side-effects-decreased-pressure-in-the-lower-oesophageal-and-the-pyloric-sphincters-after-the-administration-of-dopamine-antagonists-neuroleptics-anti-emetics-l-name-pentadecapeptide-bpc-157-and-l-arginine
#6
Zeljka Belosic Halle, Josipa Vlainic, Domagoj Drmic, Dean Strinic, Kresimir Luetic, Mario Sucic, Maria Medvidovic-Grubisic, Tatjana Pavelic Turudic, Igor Petrovic, Sven Seiwerth, Predrag Sikiric
The ulcerogenic potential of dopamine antagonists and L-NAME in rats provides unresolved issues of anti-emetic neuroleptic application in both patients and experimental studies. Therefore, in a 1-week study, we examined the pressures within the lower oesophageal and the pyloric sphincters in rats [assessed manometrically (cm H2O)] after dopamine neuroleptics/prokinetics, L-NAME, L-arginine and stable gastric pentadecapeptide BPC 157 were administered alone and/or in combination. Medication (/kg) was given once daily intraperitoneally throughout the 7 days, with the last dose at 24 h before pressure assessment...
May 17, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28515915/superior-effects-of-quetiapine-compared-with-aripiprazole-and-iloperidone-on-mk-801-induced-olfactory-memory-impairment-in-female-mice
#7
Ahmet Mutlu, Oguz Mutlu, Guner Ulak, Furuzan Akar, Havva Kaya, Faruk Erden, Pelin Tanyeri
Cognitive dysfunction is commonly observed in schizophrenic patients and the administration of antipsychotic treatments results in different outcomes. Although the typical antipsychotic treatments, such as haloperidol, appear to be unable to improve cognition dysfunction, the atypical antipsychotic drugs (quetiapine, aripiprazole and iloperidone) exert a beneficial effect. The purpose of the current study was to investigate the effects of atypical antipsychotics on olfactory memory in mice, utilizing the social transmission of food preference (STFP) tests to evaluate the effects of drugs on MK-801-induced cognitive dysfunction...
May 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28511206/antipsychotic-treatment-of-22q11-2-deletion-syndrome-related-psychoses
#8
Elias Angelopoulos, Christos Theleritis, Marina Economou, Korina Georgatou, Charalambos C Papageorgiou, Eleftheria Tsaltas
In the recent study by Verhoeven and Egger, 2015 and the recent letter to the editor by Boot et al. 2015 an emphasis is given to the best possible pharmacological treatment of 22q11-2 Deletion-Syndrome related psychoses. We would like to present the case of a 23-year old Cypriot patient with 22q11.2 deletion syndrome who fulfilled criteria for treatment resistant schizophrenia (TRS). He was sequentially treated with aripiprazole, risperidone, olanzapine, haloperidol and a combination treatment with olanzapine and haloperidol...
May 16, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28510417/correction-to-classics-in-chemical-neuroscience-haloperidol
#9
Marshall W Tyler, Josefa Zaldivar-Diez, Stephen J Haggarty
No abstract text is available yet for this article.
May 16, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28508340/comparative-effects-of-sertraline-haloperidol-or-olanzapine-treatments-on-ketamine-induced-changes-in-mouse-behaviours
#10
O J Onaolapo, T B Paul, A Y Onaolapo
Effects of sertraline, haloperidol or olanzapine administration on ketamine-induced behaviours in mice were examined. The aim was to ascertain the degree of reversal of such behaviours by sertraline, and compare its effectiveness to haloperidol and olanzapine. Ten-week old mice (N = 120) were equally divided into main groups; 1 (open-field, radial-arm maze and elevated plus maze {EPM} tests), and 2 (social interaction test). Mice in each main group were assigned into six groups of ten (n = 10) each. Group 1 received intraperitoneal (i...
May 15, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28506204/antibiotic-effects-of-loperamide-homology-of-human-targets-of-loperamide-with-targets-in-acanthamoeba-spp
#11
Abdul Mannan Baig, Zohaib Rana, M Mohsin Mannan, S Sumayya Tariq, H R Ahmad
BACKGROUND: Loperamide is an anti-diarrheal drug prescribed for non-infectious diarrhea. The drug is an opioid receptor agonist, a blocker of voltage-dependent calcium channel (Cav) and a calmodulin (CaM) inhibitor on human cells. Loperamide has been reported to exert anti-amoebic effects against pathogenic strains of Acanthamoeba castellanii. OBJECTIVES: The precise mode of antibiotic action, cellular target homology with human counterparts and the pattern of cell death induced by loperamide in Acanthamoeba castellanii remain to be established...
April 25, 2017: Recent Patents on Anti-infective Drug Discovery
https://www.readbyqxmd.com/read/28498176/effectiveness-of-haloperidol-prophylaxis-in-critically-ill-patients-with-a-high-risk-of-delirium-a-systematic-review
#12
Eduardo Santos, Daniela Cardoso, Hugo Neves, Madalena Cunha, Manuel Rodrigues, João Apóstolo
BACKGROUND: Delirium is associated with increased intensive care unit and hospital length of stay, prolonged duration of mechanical ventilation, unplanned removal of tubes and catheters, and increased morbidity and mortality. Prophylactic treatment with low-dose haloperidol may have beneficial effects for critically ill patients with a high risk of delirium. OBJECTIVES: To identify the effectiveness of haloperidol prophylaxis in critically ill patients with a high risk for delirium...
May 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/28495246/clonidine-adhesive-patch-for-the-treatment-of-tic-disorders-a-systematic-review-and-meta-analysis
#13
Shuai Wang, Yan-Zhao Wei, Jianhong Yang, Yuming Zhou, Yi Zheng
OBJECTIVE: The aim of this study was to evaluate the efficacy and safety of clonidine adhesive patch for tic disorders (TDs). METHODS: Medline, Embase, Cochrane central register of controlled trials and Chinese databases of CBM, CNKI were searched from inception to 08.2016 for randomized controlled studies (RCTs), open-label control studies of clonidine adhesive patch versus other medications or/and placebo for TDs. The cochrane Handbook for Systematic Reviews of Interventions was used to guide our study...
April 7, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28494335/ultrasound-assisted-low-density-solvent-dispersive-liquid-liquid-microextraction-for-the-simultaneous-determination-of-12-new-antidepressants-and-2-antipsychotics-in-whole-blood-by-gas-chromatography-mass-spectrometry
#14
Xiujuan Chen, Shuiqing Zheng, Jian Le, Zheyuan Qian, Runsheng Zhang, Zhanying Hong, Yifeng Chai
Antidepressant drugs are widely used in the treatment of different psychiatric disorders, as well as in conjunction with antipsychotics for the treatment of major depressive disorder. In this study, a simple and rapid ultrasound-assisted low-density solvent dispersive liquid-liquid microextraction (UA-LDS-DLLME) method was developed for the simultaneous determination of 12 new antidepressants (norfluoxetine, fluoxetine, fluvoxamine, agomelatine, mirtazapine, moclobemide, melitracen, N-desmethylmirtazapine, maprotiline, sertraline, citalopram, paroxetine) and 2 antipsychotics (clozapine and haloperidol) in human whole blood by gas chromatography-mass spectrometry (GC-MS)...
April 29, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28491312/neuroleptic-malignant-syndrome-following-catatonia-vigilance-is-the-price-of-antipsychotic-prescription
#15
Thomas J Reilly, Sean Cross, David M Taylor, Richard Haslam, Sophie C Tomlin, Benjamin Gaastra
OBJECTIVES: To describe a case of neuroleptic malignant syndrome following antipsychotic treatment of catatonia, highlighting the potentially serious complications of this rare adverse drug reaction. METHODS: We present a case report of a patient who developed this syndrome with various sequelae. RESULTS: The patient developed neuroleptic after being treated with lorazepam and olanzapine for catatonia. He subsequently developed the complications of rhabdomyolysis, acute kidney injury, pulmonary embolism, urinary retention and ileus...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28489007/-frequency-of-symptoms-and-drug-treatment-among-dying-patients-in-the-last-24-hours-of-life-at-landspitali-the-national-university-hospital-of-iceland-and-in-nursing-homes
#16
Svandis Iris Halfdanardottir, Kristin Lara Olafsdottir, Valgerdur Sigurdardottir
INTRODUCTION: The purpose of this study was to evaluate the frequency of 5 common symptoms and drug treatments prescribed and given in the last 24 hours of life in 11 medical units at Landspitali National University Hospital of Iceland (LUH) and in 7 nursing homes (NH). MATERIAL AND METHODS: Data was collected retrospectively from 232 charts of patients who died in 2012, using documentation in the Liverpool Care Pathway (LCP) and the medication management system...
May 2017: Læknablađiđ
https://www.readbyqxmd.com/read/28487497/the-involvement-of-darpp-32-in-the-pathophysiology-of-schizophrenia
#17
REVIEW
Haitao Wang, Mohd Farhan, Jiangping Xu, Philip Lazarovici, Wenhua Zheng
Schizophrenia is one of the most devastating heterogeneous psychiatric disorders. The dopamine hypothesis is the longest standing pathoetiologic theory of schizophrenia based on neurochemical evidences of elevated brain striatal dopamine synthesis capacity and increased dopamine release in response to stress. Dopamine and cyclic AMP-regulated phosphoprotein of relative molecular mass 32,000 (DARPP-32) is a cytosolic protein highly enriched in the medium spiny neurons of the neostriatum, considered as the most important integrator between the cortical input and the basal ganglia, and associated with motor control...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28481766/haloperidol-does-not-activate-thrombogenic-factors-in-older-nonpsychotic-hospitalized-patients
#18
Astrid M van Strien, Edmée J M Schrijver, Carolina Karen J P W Keijsers, Nathalie C Péquériaux, Prabath W B Nanayakkara, Hieronymus Jeroen J Derijks, Rob J van Marum
No abstract text is available yet for this article.
May 5, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28479415/off-label-medication-use-in-the-inpatient-palliative-care-unit
#19
Jung Hye Kwon, Min Ji Kim, Sebastian Bruera, Minjeong Park, Eduardo Bruera, David Hui
CONTEXT: Although off-label medications are frequently prescribed in palliative care, there are no published studies examining their use in the United States. OBJECTIVES: We examined the frequency of off-label medication use in cancer patients admitted to an acute palliative care unit (APCU). METHODS: This prospective observational study enrolled consecutive patients with advanced cancer admitted to the APCU of a tertiary care cancer center...
May 4, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28465867/differences-in-antipsychotic-related-adverse-events-in-adult-pediatric-and-geriatric-populations
#20
Hersh Sagreiya, Yi-Ren Chen, Narmadan A Kumarasamy, Karthik Ponnusamy, Doris Chen, Amar K Das
In recent years, antipsychotic medications have increasingly been used in pediatric and geriatric populations, despite the fact that many of these drugs were approved based on clinical trials in adult patients only. Preliminary studies have shown that the "off-label" use of these drugs in pediatric and geriatric populations may result in adverse events not found in adults. In this study, we utilized the large-scale U.S. Food and Drug Administration (FDA) Adverse Events Reporting System (AERS) database to look at differences in adverse events from antipsychotics among adult, pediatric, and geriatric populations...
February 26, 2017: Curēus
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