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https://www.readbyqxmd.com/read/28914976/haloperidol-versus-5-ht3-receptor-antagonists-for-postoperative-vomiting-and-qtc-prolongation-a-noninferiority-meta-analysis-and-trial-sequential-analysis-of-randomized-controlled-trials
#1
REVIEW
Preet Mohinder Singh, Anuradha Borle, Jeetinder Kaur Makkar, Anjan Trikha, David Fish, Ashish Sinha
Haloperidol is an antipsychotic with well-known antiemetic potential. It is underutilized for postoperative nausea vomiting due to reported corrected QT interval (QTc) prolongation. This meta-analysis evaluates its safety and efficacy as an antiemetic in the perioperative period. Trials comparing haloperidol to 5-HT3 -receptor antagonists (5-HT3 -RA) for 24 postoperative vomiting incidences published up to May 2017 were searched in the medical database. Comparisons were made for antiemetic efficiency variables (vomiting incidence, rescue antiemetic need, and patients with complete response) during early (until 6 hours) and late postoperative phases...
September 15, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28901281/review-5-ht1-5-ht2-5-ht3-and-5-ht7-receptors-and-their-role-in-the-modulation-of-pain-response-in-the-central-nervous-system
#2
Cortes-Altamirano José Luis, Olmos-Hernández Adriana, Bonilla-Jaime Herlinda, Carrillo-Mora Paul, Bandala Cindy, S Reyes-Long, Alfaro-Rodríguez Alfonso
BACKGROUND: The aim of this review was to identify the mechanisms by which serotonin receptors involved at the central level are able to modulate the nociceptive response. Pain is a defense mechanism of the body that entails physiological, anatomical, neurochemical, and psychological changes, and is defined as an unpleasant sensory and emotional experience with potential risk of tissue damage, comprising the leading cause of appointments with Physicians worldwide. Treatment for this symptom has generated several neuropharmacological lines of research, due to the different types of pain and the various drugs employed to treat this condition...
September 11, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28890736/the-psychoactive-drug-25b-nbome-recapitulates-rhabdomyolysis-in-zebrafish-larvae
#3
Genri Kawahara, Hideyuki Maeda, Ruri Kikura-Hanajiri, Ken-Ichi Yoshida, Yukiko K Hayashi
N-Benzyl-substituted 2C class phenethylamines (NBOMes) are psychoactive designer drugs, with strong hallucinogenic and stimulant effects, even at low doses. The designer drug, 2-(4-bromo-2, 5-dimethoxyphenyl)-N-(2-methoxybenzyl) ethanamine (25B-NBOMe) is considered to be one of the most potent agonists of the serotonin-2A (5-HT2A) receptor. Recently, we reported the first lethal case of 25B-NBOMe intoxication with severe rhabdomyolysis, concluded by clinical, pathological and toxicological analyses. There are currently no good animal models that closely recapitulate serotonin receptor-dependent rhabdomyolysis...
2017: Forensic Toxicology
https://www.readbyqxmd.com/read/28861718/repeated-forced-swim-exacerbates-methamphetamine-induced-neurotoxicity-neuroprotective-effects-of-nanowired-delivery-of-5-ht3-receptor-antagonist-ondansetron
#4
José Vicente Lafuente, Aruna Sharma, Dafin F Muresanu, Asya Ozkizilcik, Z Ryan Tian, Ranjana Patnaik, Hari S Sharma
The possibility that stress associated with chronic forced swim (FS) may exacerbate methamphetamine (METH) neurotoxicity was examined in a rat model. Rats were subjected to FS in a pool (30 °C) for 15 min daily for 8 days. Control rats were kept at room temperature. METH was administered (9 mg/kg, s.c.) in both control and FS rats and allowed to survive 4 h after the drug injection. METH in FS rats exacerbated BBB breakdown to Evans blue albumin (EBA) by 150 to 220% and ([131])-Iodine by 250 to 380% as compared to naive rats after METH...
August 31, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28861627/is-the-addition-of-a-neurokinin-1-receptor-antagonist-beneficial-in-moderately-emetogenic-chemotherapy-a-systematic-review-and-meta-analysis
#5
Karin Jordan, Luisa Blättermann, Axel Hinke, Carsten Müller-Tidow, Franziska Jahn
PURPOSE: This systematic review evaluates the efficacy of neurokinin-1 receptor antagonists (NK1RAs) for the prevention of chemotherapy-induced nausea and vomiting (CINV) in moderately emetogenic chemotherapy (MEC) excluding anthracycline-cyclophosphamide-based regimens. METHODS: A systematic review of MEDLINE (via PubMed and OVID) and Central databases, plus major oncology conferences, identified randomized trials evaluating NK1RAs in combination with a 5-HT3 RA plus a glucocorticoid for management of CINV...
August 31, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28853174/blockade-of-5-ht3-receptors-with-granisetron-does-not-affect-trigeminothalamic-nociceptive-transmission-in-rats-implication-for-migraine
#6
Alexey Y Sokolov, Ivan B Sivachenko, Sergey S Panteleev, Olga A Lyubashina
A perspective way to expand the existing range of anti-migraine drugs seems to be the search for pharmacological agents with anti-cephalalgic properties among medicines approved for clinical indications other than migraine. Numerous experimental and clinical data imply that selective serotonin 5-HT3 receptor antagonists can be considered as potential anti-migraine agents. Therefore, the objective of our work was to examine the impact of selective 5-HT3 receptor blockade with granisetron on migraine-related nociceptive transmission within the spinal trigeminal nucleus (STN) and the ventroposteromedial nucleus of the thalamus (VPM)...
August 29, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28839431/hwangryunhaedok-tang-induces-the-depolarization-of-pacemaker-potentials-through-5-ht3-and-5-ht4-receptors-in-cultured-murine-small-intestine-interstitial-cells-of-cajal
#7
Hyun Jung Kim, Guem San Lee, Hyungwoo Kim, Byung Joo Kim
AIM: To investigate the effects of a water extract of Hwangryunhaedok-tang (HHTE) on the pacemaker potentials of mouse interstitial cells of Cajal (ICCs). METHODS: We dissociated ICCs from small intestines and cultured. ICCs were immunologically identified using an anti-c-kit antibody. We used the whole-cell patch-clamp configuration to record the pacemaker potentials generated by cultured ICCs under the current clamp mode (I = 0). All experiments were performed at 30 °C-32 °C...
August 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28826537/actions-and-regulation-of-ionotropic-cannabinoid-receptors
#8
Luciano De Petrocellis, Massimo Nabissi, Giorgio Santoni, Alessia Ligresti
Almost three decades have passed since the identification of the two specific metabotropic receptors mediating cannabinoid pharmacology. Thereafter, many cannabinoid effects, both at central and peripheral levels, have been well documented and characterized. However, numerous evidences demonstrated that these pharmacological actions could not be attributable solely to the activation of CB1 and CB2 receptors since several important cannabimimetic actions have been found in biological systems lacking CB1 or CB2 gene such as in specific cell lines or transgenic mice...
2017: Advances in Pharmacology
https://www.readbyqxmd.com/read/28814338/anti-nausea-effects-and-pharmacokinetics-of-ondansetron-maropitant-and-metoclopramide-in-a-low-dose-cisplatin-model-of-nausea-and-vomiting-in-the-dog-a-blinded-crossover-study
#9
Hannah Kenward, Jonathan Elliott, Terry Lee, Ludovic Pelligand
BACKGROUND: Nausea is a subjective sensation which is difficult to measure in non-verbal species. The aims of this study were to determine the efficacy of three classes of antiemetic drugs in a novel low dose cisplatin model of nausea and vomiting and measure change in potential nausea biomarkers arginine vasopressin (AVP) and cortisol. A four period cross-over blinded study was conducted in eight healthy beagle dogs of both genders. Dogs were administered 18 mg/m(2) cisplatin intravenously, followed 45 min later by a 15 min infusion of either placebo (saline) or antiemetic treatment with ondansetron (0...
August 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28801850/amisulpride-in-the-prevention-of-nausea-and-vomiting-induced-by-cisplatin-based-chemotherapy-a-dose-escalation-study
#10
Jørn Herrstedt, Yvonne Summers, Gedske Daugaard, Thomas B Christensen, Karin Holmskov, Paul D Taylor, Gabriel M Fox, Alexander Molassiotis
PURPOSE: The purpose of this study was to investigate the antiemetic effect of the dopamine D2- and dopamine D3-receptor antagonist, amisulpride, in patients receiving cisplatin-based chemotherapy. METHODS: This dose-finding, non-comparative study investigated the antiemetic effect and safety of increasing doses (2.5, 7.5 and 20 mg) of amisulpride against acute nausea and vomiting in the period 0-24 h after initiation of cisplatin-based chemotherapy. The 20 mg dose was also investigated in combination with the 5-HT3-receptor antagonist, ondansetron...
August 11, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28795477/exogenous-serotonin-regulates-colorectal-motility-via-the-5-ht2-and-5-ht3-receptors-in-the-spinal-cord-of-rats
#11
H Nakamori, K Naitou, Y Sano, H Shimaoka, T Shiina, Y Shimizu
BACKGROUND: We previously reported that intrathecal injection of noradrenaline or dopamine causes enhancement of colorectal motility. As these monoamines are neurotransmitters of descending pain inhibitory pathways in the spinal cord, we hypothesized that serotonin, which is one of the neurotransmitters involved in descending pain inhibition, also influences the lumbosacral defecation center. Therefore, we examined whether serotonin acting on the spinal defecation center enhances colorectal motility...
August 10, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28778093/htr3a-and-htr3e-gene-polymorphisms-and-diarrhea-predominant-irritable-bowel-syndrome-risk-evidence-from-a-meta-analysis
#12
Tangming Guan, Ting Li, Weiming Cai, Dong Huang, Peipei Ouyang, Yan Wang, Huayan Chen, Kefeng Wu, Xiaoli Ma
Several studies have reported an association between serotonin receptor type 3 (5-HT3) subunit genes HTR3A (rs1062613) and HTR3E (rs62625044) and diarrhea predominant irritable bowel syndrome (IBS-D). However, the results remain inconclusive and controversial, particularly for the data derived from different ethnicities and genders. Therefore, we performed a meta-analysis to evaluate this association. All eligible case-control studies that met the search criteria were retrieved from multiple databases, and five case-control studies were included for detailed evaluation...
July 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28771848/5-ht-modulates-the-rat-mesenteric-vasopressor-outflow-by-5-ht1d-sympatholytic-receptors
#13
José-Ángel García-Pedraza, Mónica García-Domingo, Miriam Gómez-Roso, Alicia Rodríguez-Barbero, María-Luisa Martín, Asunción Morán
5-hydroxytryptamine (5-HT) modulates noradrenergic activity in different cardiovascular territories, but its effect on the mesenteric vasopressor outflow has not yet been clarified. This study investigated the in vivo serotonergic influence, characterizing 5-HT receptors implicated, in sympathetic innervation of mesenteric vasculature. Wistar rats were anaesthetised and prepared for the in situ autoperfused rat mesentery, monitoring systemic blood pressure (SBP), heart rate (HR) and mesenteric perfusion pressure (MPP)...
August 3, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28764154/effect-of-agonist-and-antagonist-on-the-in-vitro-contractility-of-inflamed-vermiform-appendix
#14
Phani Bhushan Singh, Pushpakant Tiwary, Sanjeev K Singh, Ratna Pandey, Atanu Roy, Amrita Ghosh Kar, Somprakas Basu, Anil Kumar Tiwari
INTRODUCTION: Appendicitis poses a great health problem worldwide. Previous studies demonstrated structural damage to neuronal network and interstitial cell of Cajal in appendicitis. Above observations suggest for the alterations in appendicular motility/contractility in appendicitis. But the mechanisms involved in mediating the contractility in inflamed vermiform appendix is not known till date. AIM: The present in vitro study was performed to find out the mechanisms responsible for contractility in the inflamed human vermiform appendix...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28755368/expression-biochemistry-and-stabilization-with-camel-antibodies-of-membrane-proteins-case-study-of-the-mouse-5-ht3-receptor
#15
Ghérici Hassaïne, Cédric Deluz, Luigino Grasso, Romain Wyss, Ruud Hovius, Henning Stahlberg, Takashi Tomizaki, Aline Desmyter, Christophe Moreau, Lucie Peclinovska, Sonja Minniberger, Lamia Mebarki, Xiao-Dan Li, Horst Vogel, Hugues Nury
There is growing interest in the use of mammalian protein expression systems, and in the use of antibody-derived chaperones, for structural studies. Here, we describe protocols ranging from the production of recombinant membrane proteins in stable inducible cell lines to biophysical characterization of purified membrane proteins in complex with llama antibody domains. These protocols were used to solve the structure of the mouse 5-HT3 serotonin receptor but are of broad applicability for crystallization or cryo-electron microscopy projects...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28752054/serotonergic-modulation-of-the-activity-of-glp-1-producing-neurons-in-the-nucleus-of-the-solitary-tract-in-mouse
#16
Marie K Holt, Ida J Llewellyn-Smith, Frank Reimann, Fiona M Gribble, Stefan Trapp
OBJECTIVE: Glucagon-like peptide-1 (GLP-1) and 5-HT are potent regulators of food intake within the brain. GLP-1 is expressed by preproglucagon (PPG) neurons in the nucleus tractus solitarius (NTS). We have previously shown that PPG neurons innervate 5-HT neurons in the ventral brainstem. Here, we investigate whether PPG neurons receive serotonergic input and respond to 5-HT. METHODS: We employed immunohistochemistry to reveal serotonergic innervation of PPG neurons...
August 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28737264/review-article-the-many-potential-roles-of-intestinal-serotonin-5-hydroxytryptamine-5-ht-signalling-in-inflammatory-bowel-disease
#17
REVIEW
M D Coates, I Tekin, K E Vrana, G M Mawe
BACKGROUND: Serotonin (5-hydroxytryptamine, 5-HT) is an important mediator of every major gut-related function. Recent investigations also suggest that 5-HT can influence the development and severity of inflammation within the gut, particularly in the setting of inflammatory bowel disease (IBD). AIM: To review the roles that the intestinal serotonin signalling system plays in gut function, with a specific focus on IBD. METHODS: We reviewed manuscripts from 1952 to 2017 that investigated and discussed roles for 5-HT signalling in gastrointestinal function and IBD, as well as the influence of inflammation on 5-HT signalling elements within the gut...
July 24, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28736641/bone-marrow-tolerance-during-postoperative-chemotherapy-in-colorectal-carcinomas
#18
Neil B Newman, Rebecca A Moss, Nell Maloney-Patel, Kristen Donohue, Teresa V Brown, Michael J Nissenblatt, Shou-En Lu, Salma K Jabbour
BACKGROUND: This study seeks to quantify and compare bone marrow tolerance during postoperative chemotherapy therapy between rectal cancer vs. colon cancer patients. During rectal cancer treatment, patients receive neoadjuvant chemoradiation (CRT) irradiation which can exacerbate the hematologic toxicity (HT) via incidental irradiation of the pelvic bone marrow (PBM) during myelosuppressive postoperative chemotherapy. In contrast, colon cancer patients receive the same postoperative myelosuppressive chemotherapy but do not routinely receive preoperative chemoradiation therapy...
June 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28729118/hbk-14-and-hbk-15-triple-5-ht1a-5-ht7-and-5-ht3-antagonists-with-potent-antidepressant-and-anxiolytic-like-properties-increase-seizure-threshold-in-various-seizure-tests-in-mice
#19
Karolina Pytka, Katarzyna Socała, Anna Rapacz, Dorota Nieoczym, Mateusz Pieróg, Anna Gryboś, Agata Siwek, Anna Waszkielewicz, Piotr Wlaź
Most antidepressants lower seizure threshold, which might be due to the modulation of serotonergic neurotransmission. Here, we investigated the effects of two 5-HT1A, 5-HT7 and 5-HT3 antagonists, i.e., 1-(2-(2-(2,6-dimethylphenoxy)ethoxy)ethyl)-4-(2-methoxyphenyl)piperazine hydrochloride (HBK-14) and 1-{2-[2-(2-chloro-6-methylphenoxy)ethoxy]ethyl}-4-(2-methoxyphenyl)piperazine hydrochloride (HBK-15), with antidepressant- and anxiolytic-like properties, on seizure thresholds in three acute seizure tests, i.e...
July 17, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28719042/serotonergic-paraneurons-in-the-female-mouse-urethral-epithelium-and-their-potential-role-in-peripheral-sensory-information-processing
#20
F Aura Kullmann, Huiyi H Chang, Christian Gauthier, Bronagh M McDonnell, Jih-Chao Yeh, Dennis R Clayton, Anthony J Kanai, William C de Groat, Gerard L Apodaca, Lori A Birder
AIM: The mechanisms underlying detection and transmission of sensory signals arising from visceral organs, such as the urethra, are poorly understood. Recently, specialized ACh-expressing cells embedded in the urethral epithelium have been proposed as chemosensory sentinels for detection of bacterial infection. Here we examined the morphology and potential role in sensory signaling of a different class of specialized cells that express serotonin (5-HT), termed paraneurons. METHODS: Urethrae, dorsal root ganglia neurons and spinal cords were isolated from adult female mice and used for immunohistochemistry and calcium imaging...
July 18, 2017: Acta Physiologica
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