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Haloperidol

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https://www.readbyqxmd.com/read/28062232/interactions-between-estradiol-and-haloperidol-on-perseveration-and-reversal-learning-in-amphetamine-sensitized-female-rats
#1
Anne Almey, Lauren Arena, Joshua Oliel, Nada Hafez, Cynthia Mancinelli, Lukas Henning, Aleks Tsanev, Wayne G Brake
There are sex differences associated with schizophrenia, as women exhibit later onset of the disorder, less severe symptomatology, and better response to antipsychotic medications. Estrogens are thought to play a role in these sex differences; estrogens facilitate the effects of antipsychotic medications to reduce the positive symptoms of schizophrenia, but it remains unclear whether estrogens protect against the cognitive symptoms of this disorder. Amphetamine sensitization is used to model some symptoms of schizophrenia in rats, including cognitive deficits like excessive perseveration and slower reversal learning...
January 3, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28062203/semi-mechanistic-computer-simulation-of-psychotic-symptoms-in-schizophrenia-with-a-model-of-a-humanized-cortico-striatal-thalamocortical-loop
#2
Athan Spiros, Patrick Roberts, Hugo Geerts
Despite new insights into the pathophysiology of schizophrenia and clinical trials with highly selective drugs, no new therapeutic breakthroughs have been identified. We present a semi-mechanistic Quantitative Systems Pharmacology (QSP) computer model of a biophysically realistic cortical-striatal-thalamo-cortical loop. The model incorporates the direct, indirect and hyperdirect pathway of the basal ganglia and CNS drug targets that modulate neuronal firing, based on preclinical data about their localization and coupling to voltage-gated ion channels...
January 3, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28059034/midazolam-plus-haloperidol-as-adjuvant-analgesics-to-morphine-in-opium-dependent-patients-a-randomized-clinical-trial
#3
Mohammad Afzalimoghaddam, Maryam Edalatifard, Amir Nejati, Mehdi Momeni, Nader Isavi, Ehsan Karimialavijeh
BACKGROUND: Tolerance to opioids among opium-dependent patients creates obstacles for proper pain management of these patients in the emergency department (ED). The aim of the present study was to investigate the efficacy of intramuscular (IM) haloperidol plus midazolam on morphine analgesia among opium-dependent patients. METHODS: Opium-dependent adults who were admitted to the ED for new-onset severe pain in the limbs or abdomen (within 24 hours of admission and a pain score of over six, using a numerical rating scale [NRS]) were recruited...
January 6, 2017: Current Drug Abuse Reviews
https://www.readbyqxmd.com/read/28057524/involvement-of-presynaptic-5-ht1a-receptors-in-the-low-propensity-of-brexpiprazole-to-induce-extrapyramidal-side-effects-in-rats
#4
Cedric Mombereau, Jørn Arnt, Arne Mørk
Previous studies have shown that partial and full 5-HT1A receptor agonists reduce antipsychotic-induced catalepsy. Consequently, some antipsychotics combining balanced efficacy between dopamine (DA) D2 antagonism or partial agonism and 5-HT1A receptor agonism have a low propensity to induce extrapyramidal side effects (EPS), as reflected by low cataleptogenic activity in rodents. In the present experiments, we attempted to explore the importance of pre- and postsynaptic 5-HT1A agonistic properties of brexpiprazole and aripiprazole in the context of neurological side-effect liabilities...
January 3, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28052951/is-haloperidol-the-wonder-drug-for-cannabinoid-hyperemesis-syndrome
#5
Faisal Inayat, Hafeez Ul Hassan Virk, Waqas Ullah, Qulsoom Hussain
Cannabinoid hyperemesis syndrome (CHS) is a rare clinical syndrome characterised by nausea, cyclic vomiting and severe abdominal pain in association with chronic cannabis use. It is often under-recognised or misdiagnosed, resulting in the unnecessary workup and frequent hospitalisations. Long-term treatment of CHS is abstinence from cannabis, but acute symptomatic management has been a struggle for many clinicians. The present report highlights the use of haloperidol as an agent that successfully and safely treats the unrelenting symptoms of CHS...
January 4, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28051998/prex1-integrates-g-protein-coupled-receptor-and-phosphoinositide-3-kinase-signaling-to-promote-glioblastoma-invasion
#6
Alexander Gont, Manijeh Daneshmand, John Woulfe, Sylvie J Lavictoire, Ian A J Lorimer
A defining feature of the brain cancer glioblastoma is its highly invasive nature. When glioblastoma cells are isolated from patients using serum free conditions, they accurately recapitulate this invasive behaviour in animal models. The Rac subclass of Rho GTPases has been shown to promote invasive behaviour in glioblastoma cells isolated in this manner. However the guanine nucleotide exchange factors responsible for activating Rac in this context have not been characterized previously. PREX1 is a Rac guanine nucleotide exchange factor that is synergistically activated by binding of G protein αγ subunits and the phosphoinositide 3-kinase pathway second messenger phosphatidylinositol 3,4,5 trisphosphate...
December 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/28043128/formulation-and-evaluation-of-anisamide-targeted-amphiphilic-cyclodextrin-nanoparticles-to-promote-therapeutic-gene-silencing-in-a-3d-prostate-cancer-bone-metastases-model
#7
James C Evans, Meenakshi Malhotra, Kathleen A Fitzgerald, Jianfeng Guo, Michael F Cronin, Caroline M Curtin, Fergal J O'Brien, Raphael Darcy, Caitriona M O'Driscoll
In recent years, RNA interference (RNAi) has emerged as a potential therapeutic offering the opportunity to treat a wide range of diseases, including prostate cancer. Modified cyclodextrins have emerged as effective gene delivery vectors in a range of disease models. The main objective of the current study was to formulate anisamide-targeted cyclodextrin nanoparticles to interact with the sigma receptor (overexpressed on the surface of prostate cancer cells). The inclusion of octaarginine in the nanoparticle optimized uptake and endosomal release of siRNA in two different prostate cancer cell lines (PC3 and DU145 cells)...
January 3, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28039892/enantioselective-synthesis-of-oxetanes-bearing-all-carbon-quaternary-stereocenters-via-iridium-catalyzed-c-c-bond-forming-transfer-hydrogenation
#8
Michael Joseph Krische, Yi-An Guo, Wonchul Lee
Oxetanes bearing all-carbon quaternary stereocenters are readily prepared through the iridium catalyzed anti-diastereo- and enantioselective C-C coupling of primary alcohols and isoprene oxide. Based on this methodology, an oxetane containing analogue of haloperidol was prepared. A related azetidine formation also is described.
December 30, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28029546/determination-of-antipsychotic-drugs-in-hospital-and-wastewater-treatment-plant-samples-by-gas-chromatography-tandem-mass-spectrometry
#9
F Logarinho, T Rosado, C Lourenço, M Barroso, A R T S Araujo, E Gallardo
The development and performance evaluation of a method for the simultaneous determination of six antipsychotic drugs in hospital effluents and wastewater treatment plants (WWTP) samples are herein presented. The method involves an off-line mixed mode (reversed-phase and strong cation exchange) solid phase extraction (SPE) with gas chromatography (GC) coupled to tandem mass spectrometry (MS/MS). The present methodology was validated following internationally accepted criteria, and the studied parameters included selectivity, linearity, limits of detection (LOD) and quantitation (LLOQ), instrumental limits, precision and accuracy, stability and recovery...
October 24, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28027109/the-relationship-between-early-haloperidol-response-and-associated-extrapyramidal-side-effects
#10
Sean A Rasmussen, Patricia I Rosebush, Michael F Mazurek
BACKGROUND: Early response to antipsychotic medication within 2 weeks of initiating treatment can predict psychiatric outcomes. However, it is unclear whether early response is also predictive of extrapyramidal side effects (EPSs) associated with antipsychotic medications. METHODS: In this study, we investigated 136 consecutive antipsychotic-naive, first-episode psychosis patients naturalistically treated with haloperidol. Patients were assessed at baseline and weekly after treatment initiation using the Brief Psychiatric Rating Scale, Hamilton Depression Rating Scale, and Hamilton Anxiety Rating Scale...
February 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28017790/the-cb1-receptor-is-required-for-the-establishment-of-the-hyperlocomotor-phenotype-in-developmentally-induced-hypothyroidism-in-mice
#11
Elena Giné, Victor Echeverry-Alzate, Jose Antonio Lopez-Moreno, Fernando Rodriguez de Fonseca, Ana Perez-Castillo, Angel Santos
Alterations in motor functions are well-characterized features observed in humans and experimental animals with thyroid hormone dysfunctions during development. We have previously suggested the implication of the endocannabinoid system in the hyperlocomotor phenotype observed in developmentally induced hypothyroidism in rats. In this work we have further analyzed the implication of endocannabinoids in the effect of hypothyroidism on locomotor activity. To this end, we evaluated the locomotor activity in adult mice lacking the cannabinoid receptor type 1 (CB1R(-/-)) and in their wild type littermates (CB1R(+/+)), whose hypothyroidism was induced in day 12 of gestation and maintained during the experimental period...
December 23, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/28009070/effects-of-aripiprazole-and-haloperidol-on-neural-activation-during-a-simple-motor-task-in-healthy-individuals-a-functional-mri-study
#12
Rhianna Goozee, Owen O'Daly, Rowena Handley, Tiago Reis Marques, Heather Taylor, Grant McQueen, Kathryn Hubbard, Carmine Pariante, Valeria Mondelli, Antje A T S Reinders, Paola Dazzan
The dopaminergic system plays a key role in motor function and motor abnormalities have been shown to be a specific feature of psychosis. Due to their dopaminergic action, antipsychotic drugs may be expected to modulate motor function, but the precise effects of these drugs on motor function remain unclear. We carried out a within-subject, double-blind, randomized study of the effects of aripiprazole, haloperidol and placebo on motor function in 20 healthy men. For each condition, motor performance on an auditory-paced task was investigated...
December 23, 2016: Human Brain Mapping
https://www.readbyqxmd.com/read/28008348/do-doctors-agree-on-doses-of-antipsychotic-medications
#13
Johan Schill, Hans Olsson
BACKGROUND: The objective of this study was to investigate the concordance in attitudes of psychiatrists towards the doses of antipsychotics given to stable outpatients with schizophrenia and to examine the psychiatrists' estimates of equally potent doses of haloperidol and olanzapine. METHODS: We asked all 22 doctors serving at the psychiatry department of Jönköping County Hospital if they considered the combined dose of antipsychotics for 20 individual patients to be 'low', 'medium' or 'high'...
December 2016: Therapeutic Advances in Psychopharmacology
https://www.readbyqxmd.com/read/28008301/iloperidone-in-the-treatment-of-schizophrenia-an-evidence-based-review-of-its-place-in-therapy
#14
REVIEW
Fernanda S Tonin, Astrid Wiens, Fernando Fernandez-Llimos, Roberto Pontarolo
INTRODUCTION: Schizophrenia is a chronic and debilitating mental disorder that affects the patient's and their family's quality of life, as well as financial costs and health care settings. Despite the variety of available antipsychotics, optimal treatment outcomes are not always achieved. Novel drugs, such as iloperidone, can provide more effective, tolerable and safer strategies. AIM: To review the evidence for the clinical impact of iloperidone on the treatment of patients with schizophrenia...
2016: Core Evidence
https://www.readbyqxmd.com/read/28002167/haloperidol-versus-ondansetron-for-treatment-of-established-nausea-and-vomiting-following-general-anesthesia-a-randomized-clinical-trial
#15
Vanda G Yazbeck-Karam, Sahar M Siddik-Sayyid, Hanane B Barakat, Serge Korjian, Marie T Aouad
BACKGROUND: Haloperidol is an antipsychotic. At low doses, it is a useful agent for the prophylaxis of postoperative nausea and vomiting (PONV). However, its use for treating established PONV has not been well studied. METHODS: This randomized double-blinded trial tested whether haloperidol is noninferior to ondansetron for the early treatment of established PONV in adult patients undergoing general anesthesia. The primary outcome is whether patients were PONV free during the first 4 hours...
December 19, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27999544/mitragyna-speciosa-leaf-extract-exhibits-antipsychotic-like-effect-with-the-potential-to-alleviate-positive-and-negative-symptoms-of-psychosis-in-mice
#16
Kamini Vijeepallam, Vijayapandi Pandy, Thubasni Kunasegaran, Dharmani D Murugan, Murali Naidu
In this study, we investigated the antipsychotic-like effect of methanolic extract of Mitragyna speciosa leaf (MMS) using in vivo and ex vivo studies. In vivo studies comprised of apomorphine-induced climbing behavior, haloperidol-induced catalepsy, and ketamine-induced social withdrawal tests in mice whereas the ex vivo study was conducted utilizing isolated rat vas deferens preparation. Acute oral administration of MMS (50-500 mg/kg) showed an inverted bell-shaped dose-response in apomorphine-induced cage climbing behavior in mice...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27994714/factors-associated-with-adherence-to-the-hedis-quality-measure-in-medicaid-patients-with-schizophrenia
#17
Marie-Hélène Lafeuille, Christian Frois, Michel Cloutier, Mei Sheng Duh, Patrick Lefebvre, Jacqueline Pesa, Zoe Clancy, John Fastenau, Mike Durkin
BACKGROUND: Treatment continuity is a major challenge in the long-term management of patients with schizophrenia; poor patient adherence to antipsychotic drugs has been associated with negative clinical outcomes. Long-acting injectable therapies may improve adherence and lessen the risk for psychiatric-related relapse, often leading to rehospitalization and higher healthcare costs. Therefore, understanding the determinants of adherence to antipsychotics is critical in the management of patients with schizophrenia...
October 2016: American Health & Drug Benefits
https://www.readbyqxmd.com/read/27993107/anti-psychotic-activity-of-aqueous-root-extract-of-hemidesmus-indicus-a-time-bound-study-in-rats
#18
Madhu Sudan, Gaurav Gupta, Bharati Arali, Dinesh Kumar Chellappan, Kamal Dua
AIMS AND BACKGROUND: Psychosis is a neurological disorder which is usually defined as "loss of contact with reality." As medicine 'Hemidesmusindicus' hold a reputed place in all systems of medicine in India. It is given in the form of infusion, fine particles, or syrup. It is also a component of several medicinal preparations. The present research work is pertaining to find out an anti-psychotic activity of an aqueous root extract of Hemidesmusindicus- a time bound study in rats. METHODS: In the present study, the dried roots of Hemidesmusindicus were crushed to a coarse powder and extracted with water under reflux for 36 hours to obtain the aqueous extract of roots of Hemidesmusindicus (AERHI)...
December 16, 2016: Recent Patents on Drug Delivery & Formulation
https://www.readbyqxmd.com/read/27984264/reducing-restraint-with-clozapine-in-involuntarily-admitted-patients-with-schizophrenia
#19
Petru Ifteni, Andreea S Szalontay, Andreea Teodorescu
BACKGROUND: In the entire world, restraint and seclusion are common interventions in psychiatric inpatient settings because of aggressive behavior. STUDY QUESTION: Our objective was to test for the immediate antiaggressive property of clozapine compared with other antipsychotic treatments in an enriched cohort with high rates of restraint during early hospitalization. METHODS: We present a retrospective chart review in all involuntary admissions with schizophrenia during 2011-2014 in Psychiatry and Neurology Hospital, Brasov, Romania...
November 24, 2016: American Journal of Therapeutics
https://www.readbyqxmd.com/read/27981679/effects-of-antipsychotics-on-intestinal-motility-in-zebrafish-larvae
#20
K A F de Alvarenga, E K Sacramento, D V Rosa, B R Souza, V B de Rezende, M A Romano-Silva
BACKGROUND: Antipsychotics are essential for the treatment of schizophrenia. However, due to side effects, both continuity of treatment and patients' general health can be jeopardized. Some of these drugs, especially clozapine, have a class of side effects attributed to their antimuscarinic properties, such as dysmotility, a condition in which muscles of the digestive system become impaired. Dysmotility may also alter the speed, strength or coordination of the digestive organs, causing distention, disturbing gastrointestinal transit, leading to symptoms such as bloating, nausea, vomiting, and even malnutrition...
December 16, 2016: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
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