keyword
MENU ▼
Read by QxMD icon Read
search

5 ht3

keyword
https://www.readbyqxmd.com/read/28216898/depolarizing-effects-of-daikenchuto-on-interstitial-cells-of-cajal-from-mouse-small-intestine
#1
Hyungwoo Kim, Hyun Jung Kim, Dongki Yang, Myeong Ho Jung, Byung Joo Kim
BACKGROUND: Daikenchuto (DKT; TJ-100, TU-100), a traditional herbal medicineis used in modern medicine to treat gastrointestinal (GI) functional disorders. Interstitial cells of Cajal (ICCs) are the pacemaker cells of the GI tract and play important roles in the regulation of GI motility. OBJECTIVE: The objective of this study was to investigate the effects of DKT on the pacemaker potentials (PPs) of cultured ICCs from murine small intestine. MATERIALS AND METHODS: Enzymatic digestions were used to dissociate ICCs from mouse small intestine tissues...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28211304/granisetron-and-carvedilol-can-protect-experimental-rats-againstadjuvant-induced-arthritis
#2
Yasmin Moustafa Ahmed, Basim Anwar Shehata Messiha, Ali Ahmed Abo-Saif
CONTEXT: Rheumatoid arthritis (RA), a disabling autoimmune disorder of the joints as well as other organs, affects about 1% of population. Unfortunately, all current treatments of RA cause severe gastrointestinal, renal and other complications. OBJECTIVE: We aimed to evaluate the possible antiarthritic effects of a serotonin 5-HT3 receptor blocker, granisetron, and a nonselective adrenergic receptor blocker, carvedilol, on complete Freund's adjuvant-induced RA in adult female albino rats...
April 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28156640/efficacy-of-rolapitant-for-prevention-of-chemotherapy-induced-nausea-and-vomiting-cinv-in-patients-with-gastrointestinal-and-colorectal-cancers
#3
Karin Jordan, Bernardo Leon Rapoport, Ian D Schnadig, Martin Chasen, Sujata Arora, Daniel Powers, Lee Steven Schwartzberg
: 222 Background: Rolapitant (VARUBI) is a selective, long-acting neurokinin-1 receptor antagonist (RA) for the prevention of CINV. Rolapitant effectively prevented CINV in phase 3 trials of patients (pts) receiving highly or moderately emetogenic chemotherapy (HEC, MEC). While MEC and HEC regimens are commonly used to treat pts with gastrointestinal and colorectal cancers (GI/CRC), very few studies have evaluated the effectiveness of a neurokinin-1 RA regimen in these pts. We assessed the incidence of CINV and efficacy of rolapitant in a subset of pts with GI/CRC...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152932/national-comprehensive-cancer-network-petitions-submissions-and-outcomes
#4
Dinah Faith Huff, William J Hrushesky, Charles Lee Bennett, Kevin Knopf, Michael Baum
: 248 Background: The National Comprehensive Cancer Network (NCCN) invites petitions to its scientific panels. Most ( > 95%) are from the pharmaceutical industry lobbying to include their products in the NCCN Guidelines. Rarely, physicians request scientific scrutiny of the guidelines. We report the experience of Oncology Analytics (OA) with petition submissions and the possible impact on guidelines. METHODS: From 2011-2015, OA made 7 petitions to NCCN. The content of each was tracked into subsequent NCCN Guidelines to ascertain whether any changes resulted...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152708/influencing-antiemetic-prescribing-practices-and-funding-changes-through-evidence-based-guidelines
#5
Michael Wan, Aliya Pardhan, Erin Redwood, Andrea Crespo, Nita Lakhani, Leonard Kaizer
: 31 Background: In 2013 Cancer Care Ontario released updated antiemetic recommendations supporting the use of aprepitant-based combinations as 1(st) line therapy for highly emetogenic and 2(nd) line therapy for moderately emetogenic chemotherapy and discouraging the prolonged use of 5-HT3 antagonists. In 2014 changes were made in the Ontario drug formulary to align public funding to those recommendations. The impact of the changes in guidance and public funding on prescribing practices are now being analyzed...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152579/5htr3a-driven-gfp-labels-immature-olfactory-sensory-neurons
#6
Thomas E Finger, Dianna L Bartel, Nicole Shultz, Noah B Goodson, Charles Greer
The ionotropic serotonin receptor, 5-HT3 , is expressed by many developing neurons within the central nervous system. Since the olfactory epithelium continues to generate new olfactory sensory neurons (OSNs) throughout life, we investigated the possibility that 5-HT3 is expressed in the adult epithelium. Using a transgenic mouse in which the promoter for the 5-HT3a subunit drives expression of GFP, we assessed the expression of this marker in the olfactory epithelium of adult mice. Both the native 5-HT3a mRNA and GFP are expressed within globose basal cells of the olfactory and vomeronasal epithelium in adult mice...
February 2, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28137449/the-binding-orientations-of-structurally-related-ligands-can-differ-a-cautionary-note
#7
Marc-David Ruepp, Hao Wei, Michele Leuenberger, Martin Lochner, Andrew J Thompson
Crystal structures can identify ligand-receptor interactions and assist the development of novel therapeutics, but experimental challenges sometimes necessitate the use of homologous proteins. Tropisetron is an orthosteric ligand at both 5-HT3 and α7 nACh receptors and its binding orientation has been determined in the structural homologue AChBP (pdbid: 2WNC). Co-crystallisation with a structurally-related ligand, granisetron, reveals an almost identical orientation (pdbid; 2YME). However, there is a >1000-fold difference in the affinity of tropisetron at 5-HT3 versus α7 nACh receptors, and α7 nACh receptors do not bind granisetron...
January 27, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28115218/contrasting-effects-of-5-ht3-receptor-stimulation-of-the-nucleus-accumbens-or-ventral-tegmentum-on-food-intake-in-the-rat
#8
Wayne E Pratt, Peagan Lin, Zachary Pierce-Messick, Adeolu O Ilesanmi, Kara A Clissold
Although serotonin (5-HT) signaling is known to regulate food intake and energy homeostasis, the roles of the 5-HT3 receptor in feeding processes have been elusive. 5-HT3 receptors are found throughout mesolimbic circuitry that promote feeding not only in response to hunger, but also to the palatable and rewarding properties of food. These experiments examined if stimulation or blockade of the 5-HT3 receptor of the nucleus accumbens (NAcc) or ventral tegmentum affected food intake in the rat in response to hunger or the presence of a palatable diet...
January 20, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28108820/prevention-of-chemotherapy-induced-nausea-the-role-of-neurokinin-1-nk1-receptor-antagonists
#9
Snežana M Bošnjak, Richard J Gralla, Lee Schwartzberg
Chemotherapy-induced nausea (CIN) has a significant negative impact on the quality of life of cancer patients. The use of 5-hydroxytryptamine-3 (5-HT3) receptor antagonists (RAs) has reduced the risk of vomiting, but (except for palonosetron) their effect on nausea, especially delayed nausea, is limited. This article reviews the role of NK1RAs when combined with 5-HT3RA-dexamethasone in CIN prophylaxis. Aprepitant has not shown consistent superiority over a two-drug (ondansetron-dexamethasone) combination in nausea control after cisplatin- or anthracycline-cyclophosphamide (AC)-based highly emetogenic chemotherapy (HEC)...
January 20, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28047407/su-f-t-110-lkb-modeling-of-acute-hematologic-toxicity-in-rectal-cancer
#10
H Deng, K Cheng, X Wan
PURPOSE: To investigate dosimetric parameters correlated with acute hematologic toxicity (HT) in patients with rectal cancer treated with IMRT and concurrent chemotherapy. METHODS: We analyzed 127 rectal cancer patients receiving IMRT and concurrent chemotherapy. Whole pelvic bone marrow (PBM) was contoured for each patient including lumbosacral spine (LSSP), ilium and lower pelvic (LP). The equivalent uniform dose (EUD) of each region and the PBM were calculated...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28034961/role-of-prefrontal-serotonergic-and-dopaminergic-systems-in-encounter-induced-hyperactivity-in-methamphetamine-sensitized-mice
#11
Tatsunori Tanaka, Yukio Ago, Chiaki Umehara, Emina Imoto, Shigeru Hasebe, Hitoshi Hashimoto, Kazuhiro Takuma, Toshio Matsuda
BACKGROUND: Isolation-reared mice show social encounter-induced hyperactivity with activation of prefrontal serotonergic and dopaminergic systems, but it is not known whether this stress response is observed in other pathological conditions. Here we examined whether the social encounter stimulation induces abnormal behavior during withdrawal in chronic methamphetamine (METH)-treated mice. METHODS: To induce METH-induced behavioral sensitization, male mice were injected with METH (1 mg/kg) once daily for 7 days...
December 29, 2016: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28032216/effectiveness-of-aprepitant-in-addition-to-ondansetron-in-the-prevention-of-nausea-and-vomiting-caused-by-fractionated-radiotherapy-to-the-upper-abdomen-avert
#12
Steven Ades, M Halyard, K Wilson, T Ashikaga, R Heimann, S Kumar, W Blackstock
PURPOSE: Despite a lower risk of nausea and vomiting in patients receiving radiotherapy to the upper abdomen (UA-RINV) with prophylactic 5-HT3 antagonist therapy, patients can still experience UA-RINV. The aim of this multicenter phase II study was to assess effectiveness, safety, and tolerability of protracted dual NK1-receptor and 5-HT3 antagonist prophylaxis against UA-RINV. METHODS: Patients receiving fractionated radiotherapy with radiosensitizing chemotherapy received oral ondansetron 8 mg po q12 h and aprepitant 125/80/80 mg on a Monday, Wednesday, Friday schedules throughout radiotherapy...
December 28, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28025094/serotonergic-mechanisms-of-trigeminal-meningeal-nociception-implications-for-migraine-pain
#13
Erkan Kilinc, Cindy Guerrero-Toro, Andrey Zakharov, Carmela Vitale, Max Gubert-Olive, Ksenia Koroleva, Arina Timonina, Liliana L Luz, Irina Shelukhina, Raisa Giniatullina, Fatma Tore, Boris V Safronov, Rashid Giniatullin
Serotonergic mechanisms play a central role in migraine pathology. However, the region-specific effects of serotonin (5-HT) mediated via multiple types of receptors in the nociceptive system are poorly understood. Using extracellular and patch-clamp recordings, we studied the action of 5-HT on the excitability of peripheral and central terminals of trigeminal afferents. 5-HT evoked long-lasting TTX-sensitive firing in the peripheral terminals of meningeal afferents, the origin site of migraine pain. Cluster analysis revealed that in majority of nociceptive fibers 5-HT induced either transient or persistent spiking activity with prevailing delta and theta rhythms...
December 23, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/28017279/cardiovascular-remodeling-and-the-peripheral-serotonergic-system
#14
REVIEW
Estelle Ayme-Dietrich, Gaëlle Aubertin-Kirch, Luc Maroteaux, Laurent Monassier
Plasma 5-hydroxytryptamine (5-HT; serotonin), released from blood platelets, plays a major role in the human cardiovascular system. Besides the effect of endogenous serotonin, many drugs targeting serotonergic receptors are widely used in the general population (antiobesity agents, antidepressants, antipsychotics, antimigraine agents), and may enhance the cardiovascular risk. Depending on the type of serotonin receptor activated and its location, the use of these compounds triggers acute and chronic effects...
January 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28007031/comparative-safety-and-effectiveness-of-serotonin-receptor-antagonists-in-patients-undergoing-chemotherapy-a-systematic-review-and-network-meta-analysis
#15
Andrea C Tricco, Erik Blondal, Areti Angeliki Veroniki, Charlene Soobiah, Afshin Vafaei, John Ivory, Lisa Strifler, Roberta Cardoso, Emily Reynen, Vera Nincic, Huda Ashoor, Joanne Ho, Carmen Ng, Christy Johnson, Erin Lillie, Jesmin Antony, Derek J Roberts, Brenda R Hemmelgarn, Sharon E Straus
BACKGROUND: Although serotonin (5-HT3) receptor antagonists are effective in reducing nausea and vomiting, they may be associated with increased cardiac risk. Our objective was to examine the comparative safety and effectiveness of 5-HT3 receptor antagonists (e.g., dolasetron, granisetron, ondansetron, palonosetron, tropisetron) alone or combined with steroids for patients undergoing chemotherapy. METHODS: We searched MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials from inception until December 2015 for studies comparing 5-HT3 receptor antagonists with each other or placebo in chemotherapy patients...
December 23, 2016: BMC Medicine
https://www.readbyqxmd.com/read/28002639/clinical-pharmacogenetics-implementation-consortium-cpic-guideline-for-cyp2d6-genotype-and-use-of-ondansetron-and-tropisetron
#16
Gillian C Bell, Kelly E Caudle, Michelle Whirl-Carrillo, Ronald J Gordon, Keiko Hikino, Cynthia A Prows, Andrea Gaedigk, Jose A G Agundez, Senthilkumar Sadhasivam, Teri E Klein, Matthias Schwab
5-hydroxytryptamine type 3 (5-HT3 ) receptor antagonists are used in the prevention of chemotherapy- induced, radiation-induced and postoperative nausea and vomiting. CYP2D6 polymorphisms can influence the metabolism of some of these drugs (i.e. ondansetron and tropisetron) thereby affecting drug efficacy. We summarize evidence from the published literature supporting these associations and provide therapeutic recommendations for ondansetron and tropisetron based on CYP2D6 genotype (updates at www.pharmgkb...
December 21, 2016: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28002447/influence-of-polymorphisms-in-the-htr3a-and-htr3b-genes-on-experimental-pain-and-the-effect-of-the-5-ht3-antagonist-granisetron
#17
Sofia Louca Jounger, Nikolaos Christidis, Britt Hedenberg-Magnusson, Thomas List, Peter Svensson, Martin Schalling, Malin Ernberg
The aim of this study was to investigate experimentally if 5-HT3 single nucleotide polymorphisms (SNP) contribute to pain perception and efficacy of the 5-HT3-antagonist granisetron and sex differences. Sixty healthy participants were genotyped regarding HTR3A (rs1062613) and HTR3B (rs1176744). First, pain was induced by bilateral hypertonic saline injections (HS, 5.5%, 0.2 mL) into the masseter muscles. Thirty min later the masseter muscle on one side was pretreated with 0.5 mL granisetron (1 mg/mL) and on the other side with 0...
2016: PloS One
https://www.readbyqxmd.com/read/27996982/-vortioxetine-in-the-treatment-of-major-depression
#18
Andrea de Bartolomeis, Andrea Fagiolini, Giuseppe Maina
Notwithstanding the high prevalence, functional burden, negative consequences and risk of chronicity of major depressive disorder, few innovative medications have been developed in recent years for the treatment of this heterogeneous disease. Vortioxetine is a multi-modal antidepressant that functions both as serotonin transporter (SERT) inhibitor and as 5-HT3, 5-HT7 and 5-HT1D receptors antagonist, 5-HT1A receptor agonist and 5-HT1B receptor partial agonist. A recent meta-analysis of 11 randomized, double-blind, placebo controlled, acute (6-8 weeks) treatment studies has demonstrated the efficacy of vortioxetine 5-20 mg/day in the treatment of depression, with an increasing effect associated with increasing dose...
November 2016: Rivista di Psichiatria
https://www.readbyqxmd.com/read/27992509/palonosetron-and-ramosetron-compared-for-effectiveness-in-preventing-postoperative-nausea-and-vomiting-a-systematic-review-and-meta-analysis
#19
EunJin Ahn, GeunJoo Choi, Hyun Kang, ChongWha Baek, YongHun Jung, YoungCheol Woo, SangSeok Lee, YeoGoo Chang
Previous randomized controlled trials have reported conflicting findings on the superiority of palonosetron over ramosetron for preventing postoperative nausea and vomiting (PONV). Therefore, the present systematic review was registered in PROSPERO (CRD42016038120) and performed to compare the efficacy of perioperative administration of palonosetron to that of ramosetron for preventing PONV. We searched MEDLINE, EMBASE, and CENTRAL to identify all randomized controlled trials that compared the effectiveness of perioperative administration of palonosetron to that of ramosetron...
2016: PloS One
https://www.readbyqxmd.com/read/27988869/comparative-pharmacology-and-guide-to-the-use-of-the-serotonin-5-ht3-receptor-antagonists-for-postoperative-nausea-and-vomiting
#20
Anthony L Kovac
Since the introduction of the serotonin 5-hydroxy tryptamine 3 (5-HT3) receptor antagonists in the early 1990s, the incidence of postoperative nausea and vomiting (PONV) and post-discharge nausea and vomiting (PDNV) has decreased, yet continues to be a problem for the surgical patient. The clinical application of the 5-HT3 receptor antagonists has helped define the approach and role of these antiemetics in the prevention and treatment of PONV and PDNV. Pharmacological and clinical differences exist among these medications resulting in corresponding differences in effectiveness, safety, optimal dosage, time of administration, and use as combination and rescue antiemetic therapy...
December 2016: Drugs
keyword
keyword
41365
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"