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https://www.readbyqxmd.com/read/28447301/management-of-chemotherapy-induced-nausea-and-vomiting-in-pediatric-patients
#1
REVIEW
Rudolph M Navari
Chemotherapy-induced nausea and vomiting (CINV) is associated with a significant deterioration in quality of life and is perceived by patients as a major adverse effect of the treatment. This review summarizes the safety and efficacy of current antiemetic agents for the prevention of CINV in children. Information on antiemetic prophylaxis for CINV in children was obtained from a literature review of current peer-reviewed articles and recent international guidelines. The literature review and the international antiemetic guidelines provide recommendations for use of specific antiemetics in children based on the emetogenicity of the chemotherapy...
April 21, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28439683/genistein-modulation-of-seizure-involvement-of-estrogen-and-serotonin-receptors
#2
Saeed Amiri Gheshlaghi, Razieh Mohammad Jafari, Mohammad Algazo, Nastaran Rahimi, Hussein Alshaib, Ahmad Reza Dehpour
Genistein, a major source of phytoestrogen exposure for humans and animals, has been shown to mediate neuroprotection in Alzheimer's disease and status epilepticus. In the present study, we investigated the effect of genistein on pentylenetetrazole-induced seizures in ovariectomized mice and the possible involvement of estrogenic and serotonergic pathways in the probable effects of genistein. Intraperitoneal (i.p.) administration of genistein (10 mg/kg) significantly increased the seizure threshold 30 min prior to induction of seizures 14 days after ovariectomy surgery...
April 24, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28414050/a-study-of-time-and-sex-dependent-effects-of-vortioxetine-on-rat-sexual-behavior-possible-roles-of-direct-receptor-modulation
#3
Yan Li, Alan L Pehrson, Ronald S Oosting, Maria Gulinello, Berend Olivier, Connie Sanchez
Treatment-related sexual dysfunction is a common side effect of antidepressants and contributes to patient non-compliance or treatment cessation. However, the multimodal antidepressant, vortioxetine, demonstrates low sexual side effects in depressed patients. To investigate the mechanisms involved, sexual behavior was assessed in male and female rats after acute, and repeated (7 and 14 days) treatment with vortioxetine, flesinoxan (a 5-HT1A agonist), CP-94253 (a 5-HT1B agonist), or ondansetron (a 5-HT3 antagonist)...
April 13, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28408644/human-derived-gut-microbiota-modulates-colonic-secretion-in-mice-by-regulating-5-ht3-receptor-expression-via-acetate-production
#4
Yogesh Bhattarai, Bradley A Schmidt, David R Linden, Eric D Larson, Madhusudan Grover, Arthur Beyder, Gianrico Farrugia, Purna C Kashyap
Serotonin (5-hydroxytryptamine, 5-HT), an important neurotransmitter and a paracrine messenger in the gastrointestinal (GI) tract, regulates intestinal secretion by its action primarily on 5-HT3 and 5-HT4 receptors. Recent studies highlight the role of gut microbiota in 5-HT biosynthesis. In this study we determine if human-derived gut microbiota affect host secretory response to 5-HT and 5-HT receptor expression. We used proximal colonic mucosa-submucosa preparation from age matched Swiss Webster germ free (GF) and humanized (HM; ex-GF colonized with human gut microbiota) mice...
April 13, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28396308/new-options-and-controversies-in-the-management-of-chemotherapy-induced-nausea-and-vomiting
#5
Sara M Koth, Jill Kolesar
PURPOSE: An expanding array of options for prevention and treatment of chemotherapy-induced nausea and vomiting (CINV), including regimens containing olanzapine or recently approved neurokinin 1 (NK1) receptor antagonists, are reviewed. SUMMARY: Up to 80% of patients receiving chemotherapy have CINV. Current practice guidelines recommend that patients treated with highly emetogenic chemotherapy also receive a 3-drug antiemetic regimen initiated on the day of and continued for 3 days after chemotherapy administration, with the most commonly used 3-drug regimen consisting of an NK1 receptor antagonist, a 5-hydroxytryptamine type 3 (5-HT3) receptor antagonist, and dexamethasone...
April 10, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28388860/chemotherapy-induced-nausea-and-vomiting-incidence-and-management-in-jordan
#6
Mohammad Al Qadire
Cancer patients experience a considerable number of symptoms during the course of their disease. Of these symptoms, chemotherapy-induced nausea and vomiting (CINV) is one of the most reported and it increases the cancer burden on patients. This study aims to assess the current status of CINV among Jordanian cancer patients, with regard to its incidence and management. A descriptive cross-sectional survey design was used. The study sample was 185 cancer patients. The mean age of participants was 46.6 years ( SD = 15...
April 1, 2017: Clinical Nursing Research
https://www.readbyqxmd.com/read/28387936/the-plasticity-of-descending-controls-in-pain-translational-probing
#7
Kirsty Bannister, A H Dickenson
Descending controls, comprising pathways that originate in midbrain and brainstem regions and project onto the spinal cord, have long been recognized as key links in the multiple neural networks that interact to produce the overall pain experience. There is clear evidence from preclinical and clinical studies that both peripheral and central sensitisation play important roles in determining the level of pain perceived. Much emphasis has been put on spinal cord mechanisms in central excitability, but it now becoming clear that spinal hyperexcitability can be regulated by descending pathways from the brain that originate from predominantly noradrenergic and serotonergic systems...
April 7, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28373467/efficacy-of-single-dose-first-generation-5-ht3-receptor-antagonist-and-dexamethasone-for-preventing-nausea-and-vomiting-induced-by-low-dose-carboplatin-based-chemotherapy
#8
Daizo Kaito, Hirotoshi Iihara, Norihiko Funaguchi, Junki Endo, Fumitaka Ito, Komei Yanase, Sayaka Toyoshi, Yuka Sasaki, Chiemi Hirose, Natsumi Arai, Mika Kitahora, Yasushi Ohno, Yoshinori Itoh, Shinya Minatoguchi
BACKGROUND: Carboplatin (CBDCA) is known to exhibit a high emetic risk among moderate-emetic risk anticancer drugs, and the dose of CBDCA varies in different therapies. In concurrent chemoradiotherapy (CCRT) for non-small cell lung cancer (NSCLC), the weekly administration of CBDCA (area under the curve (AUC) 2 mg/ml/min) and paclitaxel (PTX: 40 mg/m(2)) is frequently applied as standard therapy. However, the optimal antiemetic measures in the use of such low-dose CBDCA remain unclear...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28367632/subtle-differences-among-5-ht3ac-5-ht3ad-and-5-ht3ae-receptors-are-revealed-by-partial-agonists
#9
Kerry L Price, Yuri Hirayama, Sarah C R Lummis
5-HT3 receptors are members of the Cys-loop family of ligand-gated ion channels, and, like most members of this family, there are multiple subunits that can contribute to functional pentameric receptors. 5-HT3A and 5-HT3AB receptors have been extensively characterized, but there are few studies on 5-HT3AC, 5-HT3AD, and 5-HT3AE receptors. Here we explore the properties of a range of partial agonists at 5-HT3AC, 5-HT3AD, and 5-HT3AE receptors following expression in Xenopus oocytes. The data show that the characteristics of receptor activation differ in the different heteromeric receptors when they are challenged with 5-HT, m-chlorophenylbiguanide (mCPBG), varenicline, 5-fluorotryptamine (5-FT), or thymol...
April 3, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28363413/action-of-bacopa-monnieri-to-antagonize-cisplatin-induced-emesis-in-suncus-murinus-house-musk-shrew
#10
Ihsan Ullah, Fazal Subhan, Zengbing Lu, Sze Wa Chan, John A Rudd
Bacopa monnieri (BM, family Scrophulariaceae) is used in several traditional systems of medicine for the management of epilepsy, depression, neuropathic pain, sleep disorders and memory deficits. The present study investigated the potential of BM methanol (BM-MetFr) and BM n-butanol fractions (BM-ButFr) to reduce chemotherapy-induced emesis in Suncus murinus (house musk shrew). Cisplatin (30 mg/kg, i.p.) reliably induced retching and/or vomiting over a 2 day period. BM-MetFr (10-40 mg/kg, s.c.) and BM-ButFr (5-20 mg/kg, s...
March 12, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28343185/frameworking-memory-and-serotonergic-markers
#11
Alfredo Meneses
The evidence for neural markers and memory is continuously being revised, and as evidence continues to accumulate, herein, we frame earlier and new evidence. Hence, in this work, the aim is to provide an appropriate conceptual framework of serotonergic markers associated with neural activity and memory. Serotonin (5-hydroxytryptamine [5-HT]) has multiple pharmacological tools, well-characterized downstream signaling in mammals' species, and established 5-HT neural markers showing new insights about memory functions and dysfunctions, including receptors (5-HT1A/1B/1D, 5-HT2A/2B/2C, and 5-HT3-7), transporter (serotonin transporter [SERT]) and volume transmission present in brain areas involved in memory...
March 27, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28333866/prevention-of-gastrointestinal-side-effects-in-paediatric-oncology-what-are-the-guidelines
#12
Karis K F Cheng
PURPOSE OF REVIEW: Gastrointestinal side-effects, particularly with regard to alimentary tract mucositis and chemotherapy-induced nausea and vomiting (CINV), continue to be frequent and debilitating symptomatic conditions among children and adolescents receiving cytotoxic cancer therapy. Further avenues of progress for mucositis and CINV prevention in paediatric oncology setting are warranted. RECENT FINDINGS: The current article reviews the major guidelines and literature published in 2016 pertaining to the prevention of mucositis and CINV...
March 22, 2017: Current Opinion in Supportive and Palliative Care
https://www.readbyqxmd.com/read/28316078/5-ht3a-driven-gfp-delineates-gustatory-fibers-innervating-sour-responsive-taste-cells-a-labeled-line-for-sour-taste
#13
J M Stratford, E D Larson, R Yang, E Salcedo, T E Finger
Taste buds contain multiple cell types with each type expressing receptors and transduction components for a subset of taste qualities. The sour sensing cells, Type III cells, release serotonin (5-HT) in response to the presence of sour (acidic) tastants and this released 5-HT activates 5-HT3 receptors on the gustatory nerves. We show here, using 5-HT3A GFP mice, that 5-HT3 -expressing nerve fibers preferentially contact and receive synaptic contact from Type III taste cells. Further, these 5-HT3 -expressing nerve fibers terminate in a restricted central-lateral portion of the nucleus of the solitary tract (nTS) - the same area that shows increased c-Fos expression upon presentation of a sour tastant (30 mM citric acid)...
March 17, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28291778/efficacy-and-safety-of-5-hydroxytryptamine-3-receptor-antagonists-in-irritable-bowel-syndrome-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#14
Yongping Zheng, Ting Yu, Yurong Tang, Wenjie Xiong, Xiaoxue Shen, Ling Jiang, Lin Lin
AIM: We assessed the efficacy and safety of 5-hydroxytryptamine (5-HT3) receptor antagonists in adults with non-constipated irritable bowel syndrome (IBS) or diarrhea-predominant IBS (IBS-D). METHODS: We searched PubMed, MEDLINE, EMBASE, and the Cochrane Controlled Trials Register for randomized controlled trials (RCTs) involving adults with non-constipated IBS or IBS-D that compared 5-HT3 receptor antagonists with placebo or other conventional treatment. Dichotomous symptom data were pooled to obtain the relative risk (RR) and 95% confidence intervals (CIs) for improving global IBS symptoms, abdominal pain and abnormal bowel habits, or stool consistency symptoms after therapy, and adverse events, including constipation...
2017: PloS One
https://www.readbyqxmd.com/read/28280410/lamotrigine-an-antiepileptic-drug-inhibits-5-ht3-receptor-currents-in-ncb-20-neuroblastoma-cells
#15
Ki Jung Kim, Seung Hyun Jeun, Ki-Wug Sung
Lamotrigine is an antiepileptic drug widely used to treat epileptic seizures. Using whole-cell voltage clamp recordings in combination with a fast drug application approach, we investigated the effects of lamotrigine on 5-hydroxytryptamine (5-HT)3 receptors in NCB-20 neuroblastoma cells. Co-application of lamotrigine (1~300 µM) resulted in a concentration-dependent reduction in peak amplitude of currents induced by 3 µM of 5-HT for an IC50 value of 28.2±3.6 µM with a Hill coefficient of 1.2±0.1. These peak amplitude decreases were accompanied by the rise slope reduction...
March 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28272863/serotonin-transporter-independent-actions-of-the-antidepressant-vortioxetine-as-revealed-using-the-sert-met172-mouse
#16
Alex G Nackenoff, Linda D Simmler, Nicole L Baganz, Alan L Pehrson, Connie Sánchez, Randy D Blakely
Selective serotonin (5-HT, SERT) reuptake inhibitors (SSRIs) are the most commonly prescribed treatments for depression. However, they have delayed efficacy and can induce side-effects that can encourage discontinuation. Recently, agents have been developed, including vortioxetine (Trintellix), that augment SERT blockade with interactions at other targets. At therapeutic doses, vortioxetine interacts with SERT as well as 5-HT1A, 5-HT1B, 5-HT3, and 5-HT7 receptors. We assessed the SERT-dependency of vortioxetine action using the SERT Met172 mouse model, which disrupts high-affinity interactions of many antidepressants with the transporter...
March 20, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28270854/antiemetic-and-myeloprotective-effects-of-rhus-verniciflua-stoke-in-a-cisplatin-induced-rat-model
#17
Hyo-Seon Kim, Hyeong-Geug Kim, Hwi-Jin Im, Jin-Seok Lee, Sung-Bae Lee, Won-Yong Kim, Hye-Won Lee, Sam-Keun Lee, Chang Kyu Byun, Chang-Gue Son
Rhus verniciflua Stoke has been commonly used in traditional medicine to treat gastrointestinal (GI) dysfunction diseases. In order to investigate pharmacological properties of Rhus verniciflua Stoke water extract (RVX) on cisplatin-induced amnesia, RVX (0, 25, 50, or 100 mg/kg) was orally administrated for five consecutive days after a single intraperitoneal injection of cisplatin (6 mg/kg) to SD rat. Cisplatin injection significantly increased the kaolin intake (emesis) but reduced the normal diet intake (anorexia) whereas the RVX treatment significantly improved these abnormal diet behaviors at both the acute and delayed phase...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28259598/tropisetron-sensitizes-%C3%AE-7-containing-nicotinic-receptors-to-low-levels-of-acetylcholine-in%C3%A2-vitro-and-improves-memory-related-task-performance-in-young-and-aged-animals
#18
Patrick M Callahan, Daniel Bertrand, Sonia Bertrand, Marc R Plagenhoef, Alvin V Terry
Tropisetron, a 5-HT3 receptor antagonist commonly prescribed for chemotherapy-induced nausea and vomiting also exhibits high affinity, partial agonist activity at α7 nicotinic acetylcholine receptors (α7 nAChRs). α7 nAChRs are considered viable therapeutic targets for neuropsychiatric disorders such as Alzheimer's disease (AD). Here we further explored the nAChR pharmacology of tropisetron to include the homomeric α7 nAChR and recently characterized heteromeric α7β2 nAChR (1:10 ratio) and we evaluated its cognitive effects in young and aged animals...
March 1, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28245760/peripheral-corticotropin-releasing-factor-signaling-inhibits-gastric-emptying-mechanisms-of-action-and-role-in-stress-related-gastric-alterations-of-motor-function
#19
József Czimmer, Yvette Taché
The activation of corticotrophin releasing-factor (CRF) receptors in the brain is well established to coordinate the endocrine, behavioral, autonomic and visceral responses to stress. In addition, CRF receptors are also expressed within the gut where they exert biological actions and play a role in modulating stress-related gastrointestinal function. In particular, peripheral injection of CRF and related peptides, urocortin 1, 2 or 3 inhibit gastric emptying (GE) and alters fasted and fed pattern of gastroduodenal motility in several experimental species...
February 28, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28243846/protective-effect-of-tropisetron-on-high-glucose-induced-apoptosis-and-oxidative-stress-in-pc12-cells-roles-of-jnk-p38-mapks-and-mitochondria-pathway
#20
Azadeh Aminzadeh
Tropisetron, a selective 5-HT3 receptor (5-HT3R) antagonist, is widely used to counteract chemotherapy-induced emesis. There is growing interest concerning the beneficial effects of tropisetron on the treatment of several diseases. This study was carried out to examine effects of tropisetron on high glucose (HG) induced apoptosis in PC12 cells as a suitable culture model for studying neuronal functions. Apoptosis was induced by HG, and cells were treated with HG in the absence and presence of tropisetron for varying periods of time...
February 27, 2017: Metabolic Brain Disease
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