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Gunn D, Yeldho C, Hoad C, Menys A, Gowland P, Marciani L, Spiller R. Mechanisms underlying the laxative effect of lactulose: A randomized placebo-controlled trial showing increased small bowel water and motility unaltered by the 5-HT 3 receptor antagonist, ondansetron. Neurogastroenterol Motil 2024; 36:e14754. [PMID: 38316636 DOI: 10.1111/nmo.14754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND Lactulose is a laxative which accelerates transit and softens stool. Our aim was to investigate its mechanism of action and use this model of diarrhea to investigate the anti-diarrheal actions of ondansetron. METHODS A double-blind, randomized, placebo-controlled crossover study of the effect of ondansetron 8 mg in 16 healthy volunteers. Serial MRI scans were performed fasted and 6 h after a meal. Participants then received lactulose 13.6 g twice daily and study drug for a further 36 h. On Day 3, they had further serial MRI scans for 4 h. Measurements included small bowel water content (SBWC), colonic volume, colonic gas, small bowel motility, whole gut transit, and ascending colon relaxation time (T1AC), a measure of colonic water content. KEY RESULTS Lactulose increased area under the curve (AUC) of SBWC from 0 to 240 min, mean difference 14.2 L · min (95% CI 4.1, 24.3), p = 0.009, and substantially increased small bowel motility after 4 h (mean (95% CI) 523 (457-646) a.u. to 852 (771-1178) a.u., p = 0.007). There were no changes in T1AC after 36 h treatment. Ondansetron did not significantly alter SBWC, small bowel motility, transit, colonic volumes, colonic gas nor T1AC, with or without lactulose. CONCLUSION & INFERENCES Lactulose increases SBWC and stimulates small bowel motility; however, unexpectedly it did not significantly alter colonic water content, suggesting its laxative effect is not osmotic but due to stimulation of motility. Ondansetron's lack of effect on intestinal water suggests its anti-diarrheal effect is not due to inhibition of secretion but more likely altered colonic motility.
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Affiliation(s)
- D Gunn
- NIHR Nottingham Biomedical Research Centre, Nottingham, UK
- Nottingham Digestive Diseases Centre, University of Nottingham, Nottingham, UK
| | - C Yeldho
- NIHR Nottingham Biomedical Research Centre, Nottingham, UK
- Nottingham Digestive Diseases Centre, University of Nottingham, Nottingham, UK
| | - C Hoad
- NIHR Nottingham Biomedical Research Centre, Nottingham, UK
- Sir Peter Mansfield Imaging Centre, University of Nottingham, Nottingham, UK
| | - A Menys
- Division of Medicine, Centre for Medical Imaging, University College London, London, UK
| | - P Gowland
- NIHR Nottingham Biomedical Research Centre, Nottingham, UK
- Sir Peter Mansfield Imaging Centre, University of Nottingham, Nottingham, UK
| | - L Marciani
- NIHR Nottingham Biomedical Research Centre, Nottingham, UK
- Nottingham Digestive Diseases Centre, University of Nottingham, Nottingham, UK
| | - R Spiller
- NIHR Nottingham Biomedical Research Centre, Nottingham, UK
- Nottingham Digestive Diseases Centre, University of Nottingham, Nottingham, UK
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Chen Q, Sahbaie P, Irvine KA, Clark JD. Mild Traumatic Brain Injury-Induced Augmented Postsurgical Pain Is Driven by Central Serotonergic Pain-Facilitatory Signaling. Anesth Analg 2024; 138:866-877. [PMID: 37083595 PMCID: PMC10589390 DOI: 10.1213/ane.0000000000006505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
BACKGROUND Individuals recovering from mild traumatic brain injury (mTBI) have increased rates of acute and chronic pain. However, the mechanism through which mTBI triggers heightened pain responses and the link between mTBI and postsurgical pain remain elusive. Recent data suggest that dysregulated serotonergic pain-modulating circuits could be involved. We hypothesized that mTBI triggers dysfunction in descending serotonergic pain modulation, which exacerbates acute pain and delays pain-related recovery after surgery. METHODS Using mouse models of mTBI and hindpaw incision for postsurgical pain in C57BL/6J mice, mechanical withdrawal thresholds were assessed throughout the postsurgical period. To determine whether mTBI leads to persistent alteration of endogenous opioid tone, mu-opioid receptors (MORs) were blocked with naloxone. Finally, the role of descending serotonergic signaling on postsurgical allodynia in animals with mTBI was examined using ondansetron (5-HT 3 receptor antagonist) or a serotonin-specific neurotoxin, 5,7-dihydroxytryptamine (5,7-DHT), to ablate descending serotonergic fibers. The treatment effects on withdrawal thresholds were normalized to baseline (percentage of maximum possible effect, MPE%), and analyzed using paired t -test or 2-way repeated-measures ANOVA with post hoc multiple comparisons. RESULTS Post-mTBI mice demonstrated transient allodynia in hindpaws contralateral to mTBI, while no nociceptive changes were observed in sham-mTBI animals (mean difference, MD, MPE%, post-mTBI day 3: -60.9; 95% CI, -88.7 to -35.0; P < .001). After hindpaw incision, animals without mTBI exhibited transient allodynia, while mice with prior mTBI demonstrated prolonged postsurgical allodynia (MD-MPE% postsurgical day 14: -65.0; 95% CI, -125.4 to -4.5; P = .04). Blockade of MORs using naloxone transiently reinstated allodynia in mTBI animals but not in sham-mTBI mice (MD-MPE% post-naloxone: -69.9; 95% CI, -94.8 to -45.1; P < .001). Intrathecal administration of ondansetron reversed the allodynia observed post-mTBI and postincision in mTBI mice (compared to vehicle-treated mTBI mice, MD-MPE% post-mTBI day 3: 82.7; 95% CI, 58.5-106.9; P < .001; postsurgical day 17: 62.5; 95% CI, 38.3-86.7; P < .001). Both the acute allodynia after TBI and the period of prolonged allodynia after incision in mTBI mice were blocked by pretreatment with 5,7-DHT (compared to sham-mTBI mice, MD-MPE% post-mTBI day 3: 0.5; 95% CI, -18.5 to 19.5; P = .99; postsurgical day 14: -14.6; 95% CI, -16.7 to 45.9; P = .48). Similar behavioral patterns were observed in hindpaw ipsilateral to mTBI. CONCLUSIONS Collectively, our results show that descending serotoninergic pain-facilitating signaling is responsible for nociceptive sensitization after mTBI and that central endogenous opioid tone opposes serotonin's effects. Understanding brain injury-related changes in endogenous pain modulation may lead to improved pain control for those with TBI undergoing surgery.
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Affiliation(s)
- QiLiang Chen
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, School of Medicine, Stanford, CA 94305, USA
| | - Peyman Sahbaie
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, School of Medicine, Stanford, CA 94305, USA
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave (E4-220), Palo Alto, CA 94304, USA
| | - Karen-Amanda Irvine
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, School of Medicine, Stanford, CA 94305, USA
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave (E4-220), Palo Alto, CA 94304, USA
| | - J. David Clark
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, School of Medicine, Stanford, CA 94305, USA
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave (E4-220), Palo Alto, CA 94304, USA
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Hassan MAM, Wahdan SA, El-Naga RN, Abdelghany TM, El-Demerdash E. Ondansetron attenuates cisplatin-induced behavioral and cognitive impairment through downregulation of NOD-like receptor inflammasome pathway. Toxicol Appl Pharmacol 2024; 485:116875. [PMID: 38437957 DOI: 10.1016/j.taap.2024.116875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/21/2024] [Accepted: 02/27/2024] [Indexed: 03/06/2024]
Abstract
Cisplatin is an effective and commonly used chemotherapeutic drug; however, its use is accompanied by several adverse effects, including chemobrain. Ondansetron is a 5-HT3 antagonist, commonly used in prophylactic against chemotherapy-induced nausea and vomiting. Moreover, it has been identified as a novel neuroprotective agent in different animal models. However, its protective role against chemotherapy-induced chemobrain has not been investigated. The current study was the first study that explored the potential neuroprotective effect of ondansetron against cisplatin-induced chemobrain in rats. Cisplatin (5 mg/Kg) was injected intraperitoneally, once weekly, for 4 weeks with the daily administration of ondansetron (0.5 and 1 mg/Kg). Compared to the cisplatin-treated group, ondansetron administration showed a significant decrease in the latency time and a significant increase in ambulation, rearing, and grooming frequency in the open field test (OFT). Moreover, a significant improvement in the latency time in the rotarod and passive avoidance tests, following ondansetron administration. In addition, ondansetron treatment increased the percentage of alternation in the Y-maze test. Also, ondansetron showed a remarkable enhancement in the biochemical parameters in the hippocampus. It increased the acetylcholine (Ach) level and decreased the level of the acetylcholine esterase enzyme (AchE). Ondansetron significantly decreased interleukin-1β (Il-1β), tumor necrosis factor-alpha (TNF-α), toll-like receptor-4 (TLR-4), NOD-like receptor-3 (NLRP3) inflammasome as well as caspase-1 and caspase-3 levels. Furthermore, ondansetron significantly decreased the levels of copper transporter-1(CTR1) expression in the hippocampus. Collectively, these findings suggest that ondansetron may exhibit a neuroprotective and therapeutic activity against cisplatin-induced chemobrain.
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Affiliation(s)
- Mennat-Allah M Hassan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Sara A Wahdan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Egypt
| | - Reem N El-Naga
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Egypt
| | - Tamer M Abdelghany
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt; Department of Pharmacology and Toxicology, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr city, Cairo 11884, Egypt
| | - Ebtehal El-Demerdash
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Egypt.
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Liao C, Guo J, Rui J, Gao K, Lao J, Zhou Y. 5-HT3a receptor contributes to neuropathic pain by regulating central sensitization in a rat with brachial plexus avulsion. Physiol Behav 2024; 277:114503. [PMID: 38403260 DOI: 10.1016/j.physbeh.2024.114503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/24/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
PURPOSE As a frequently occurring complication resulting from brachial plexus avulsion (BPA), neuropathic pain significantly impacts the quality of life of patients and places a substantial burden on their families. Recent reports have suggested that the 5-HT3a receptor may play a role in the development and regulation of neuropathic pain. The current study aimed to explore the involvement of the 5-HT3a receptor in neuropathic pain resulting from BPA in rats. METHODS A rat model of neuropathic pain was induced through brachial plexus avulsion (BPA). The pain thresholds of the rats were measured after BPA. The spinal dorsal horn (SDH) of rats was collected at day 14 after surgery, and the expression and distribution of the 5-HT3a receptor were analyzed using immunohistochemistry and western blotting. The expression levels of various factors related to central sensitization were measured by western blot, including c-Fos, GFAP, IBA-1, IL-1β and TNF-α. The effects of 5-HT3a receptor antagonists on hyperalgesia were assessed through behavioral tests after intrathecal administration of ondansetron. Additionally, at 120 min postinjection, the SDH of rats was acquired, and the change of expression levels of protiens related to central sensitization were measured by western blot. RESULTS BPA induced mechanical and cold hypersensitivity in rats. The 5-HT3a receptor was increased and mainly distributed on neurons and microglia in the SDH after BPA, and the level of central sensitization and expression of inflammatory factors, such as c-Fos, GFAP, IBA-1, IL-1β and TNF-α, were also increased markedly. Ondansetron, which is a selective 5-HT3a receptor antagonist, reversed the behavioral changes caused by BPA. The antagonist also decreased the expression of central sensitization markers and inflammatory factors. CONCLUSION The results suggested that the 5-HT3a receptor is involved in neuropathic pain by regulating central nervous system sensitization in a rat brachial plexus avulsion model. Targeting the 5-HT3a receptor may be a promising approach for treating neuropathic pain after brachial plexus avulsion.
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Affiliation(s)
- Chengpeng Liao
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Jinding Guo
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Jing Rui
- NHC Key Laboratory of Hand Reconstruction (Fudan University), Shanghai, China; Shanghai Key Laboratory of Peripheral Nerve and Microsurgery, Shanghai, China; Institute of Hand Surgery, Fudan University, Shanghai, China
| | - Kaiming Gao
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Jie Lao
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Hand Reconstruction (Fudan University), Shanghai, China; Shanghai Key Laboratory of Peripheral Nerve and Microsurgery, Shanghai, China
| | - Yingjie Zhou
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Hand Reconstruction (Fudan University), Shanghai, China.
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Akhavanakbari G, Entezariasl M, Isazadehfar K. The Effect of Granisetron, Ondansetron, and Meperidine in Preventing Postoperative Shivering: Controlled Clinical Trial. Int Tinnitus J 2024; 27:160-166. [PMID: 38507630 DOI: 10.5935/0946-5448.20230025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
BACKGROUND Recently, use of HT35 receptor antagonists to prevent postoperative shivering has attracted a great deal of attention. This study was conducted with the aim of investigating the effectiveness of granisetron as an HT35 antagonist when compared with ondansetron and meperidine in preventing postoperative shivering. MATERIAL AND METHODS In this triple blind random clinical trial study, 90 patients 18-50 years of age with ASA Class I and II undergoing general anesthesia were randomly assigned into one of the three drug groups: O (4-mg ondansetron), G (40 μg/kg of granisetron), and P (25 mg meperidine), immediately before induction of anesthesia. After anesthesia induction, at the end of the surgery, after the entrance and after leaving the recovery state, central temperature, peripheral temperature, heart rate, systolic blood pressure, diastolic blood pressure, and shivering were measured and documented. Two-tailed P < 0.05 was considered significant. RESULTS In the meperidine, ondansetron, and granisetron groups, 4 (13.3%), 3 (10%), and 10 (33.3%) of patients experienced shivering during recovery, where the difference between the ondansetron and granisetron groups was significant (p-value=0.02). The variations in the mean arterial pressure during the investigation stages only in the ondansetron group were not significant (p>0.05). At the beginning of recovery, the reduction of peripheral temperature significantly was lower in the ondansetron group (p<0.05), while reduction of the central temperature was significantly (p<0.05) higher in the granisetron group. By the end of the recovery, the variations in the peripheral temperature across the three groups were consistent with the changes at the beginning of recovery, but variations of the central temperature across the three groups was not significantly diverse. CONCLUSION Granisetron was not found to be much effective in preventing postoperative shivering. Ondansetron and meperidine were equally effective in preventing postoperative shivering. Ondansetron also causes less hemodynamic changes compared to other drugs, while granisetron is more effective in terms of preventing nausea and vomiting.
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Affiliation(s)
- Ghodrat Akhavanakbari
- Department of Anesthesiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Masood Entezariasl
- Department of Anesthesiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Khatereh Isazadehfar
- Determinants of Health Research Center, Department of Community Medicine, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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Satoh H, Akiba Y, Urushidani T, Kaunitz JD. Gastroparesis Worsens Indomethacin-Induced Gastric Antral Ulcers by Bile Reflux via Activation of 5-HT 3 and Dopamine D 2 Receptors in Mice. Dig Dis Sci 2023; 68:3886-3901. [PMID: 37632663 DOI: 10.1007/s10620-023-08086-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/16/2023] [Indexed: 08/28/2023]
Abstract
BACKGROUND/AIMS We examined the contributions of gastric emptying and duodenogastric bile reflux in the formation of gastric antral ulcers induced by NSAIDs in mice. METHODS We used the murine re-fed indomethacin (IND) experimental ulcer model. Outcome measures included the appearance of gastric lesions 24 h after IND treatment and the assessment of gastric contents and the concentration of bile acids 1.5 h after re-feeding. The effects of atropine, dopamine, SR57227 (5-HT3 receptor agonist), apomorphine, ondansetron, haloperidol, and dietary taurocholate and cholestyramine were also examined. RESULTS IND (10 mg/kg, s.c.) induced severe lesions only in the gastric antrum in the re-fed model. The antral lesion index and the amount of food intake during the 2-h refeeding period were positively correlated. Atropine and dopamine delayed gastric emptying, increased bile reflux, and worsened IND-induced antral lesions. SR57227 and apomorphine worsened antral lesions with increased bile reflux. These effects were prevented by the anti-emetic drugs ondansetron and haloperidol, respectively. The anti-emetic drugs markedly decreased the severity of antral lesions and the increase of bile reflux induced by atropine or dopamine without affecting delayed gastric emptying. Antral lesions induced by IND were increased by dietary taurocholate but decreased by the addition of the bile acid sequestrant cholestyramine. CONCLUSIONS These results suggest that gastroparesis induced by atropine or dopamine worsens NSAID-induced gastric antral ulcers by increasing duodenogastric bile reflux via activation of 5-HT3 and dopamine D2 receptors.
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Affiliation(s)
- Hiroshi Satoh
- Department of Pathophysiology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kodo, Kyotanabe, Kyoto, 610-0395, Japan.
| | - Yasutada Akiba
- Greater Los Angeles Veterans Affairs Healthcare System, B114, R217, West LA VAMC, 11301 Wilshire Blvd., Los Angeles, CA, 90073, USA
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90025, USA
| | - Tetsuro Urushidani
- Department of Pathophysiology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kodo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Jonathan D Kaunitz
- Greater Los Angeles Veterans Affairs Healthcare System, B114, R217, West LA VAMC, 11301 Wilshire Blvd., Los Angeles, CA, 90073, USA
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90025, USA
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Tian ZR, Sharma A, Muresanu DF, Sharma S, Feng L, Zhang Z, Li C, Buzoianu AD, Lafuente JV, Nozari A, Sjöqvisst PO, Wiklund L, Sharma HS. Nicotine neurotoxicity exacerbation following engineered Ag and Cu (50-60 nm) nanoparticles intoxication. Neuroprotection with nanowired delivery of antioxidant compound H-290/51 together with serotonin 5-HT3 receptor antagonist ondansetron. Int Rev Neurobiol 2023; 172:189-233. [PMID: 37833012 DOI: 10.1016/bs.irn.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
Nicotine abuse is frequent worldwide leading to about 8 millions people die every year due to tobacco related diseases. Military personnel often use nicotine smoking that is about 12.8% higher than civilian populations. Nicotine smoking triggers oxidative stress and are linked to several neurodegenerative diseases such as Alzheimer's disease. Nicotine neurotoxicity induces significant depression and oxidative stress in the brain leading to neurovascular damages and brain pathology. Thus, details of nicotine neurotoxicity and factors influencing them require additional investigations. In this review, effects of engineered nanoparticles from metals Ag and Cu (50-60 nm) on nicotine neurotoxicity are discussed with regard to nicotine smoking. Military personnel often work in the environment where chances of nanoparticles exposure are quite common. In our earlier studies, we have shown that nanoparticles alone induces breakdown of the blood-brain barrier (BBB) and exacerbates brain pathology in animal models. In present investigation, nicotine exposure in with Ag or Cu nanoparticles intoxicated group exacerbated BBB breakdown, induce oxidative stress and aggravate brain pathology. Treatment with nanowired H-290/51 a potent chain-breaking antioxidant together with nanowired ondansetron, a potent 5-HT3 receptor antagonist significantly reduced oxidative stress, BBB breakdown and brain pathology in nicotine exposure associated with Ag or Cu nanoparticles intoxication. The functional significance of this findings and possible mechanisms of nicotine neurotoxicity are discussed based on current literature.
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Affiliation(s)
- Z Ryan Tian
- Dept. Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
| | - Dafin F Muresanu
- Dept. Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania; ''RoNeuro'' Institute for Neurological Research and Diagnostic, Mircea Eliade Street, Cluj-Napoca, Romania
| | - Suraj Sharma
- Blekinge Institute of Technology, BTH, Karlskrona, Sweden
| | - Lianyuan Feng
- Blekinge Institute of Technology, BTH, Karlskrona, Sweden
| | - Zhiqiang Zhang
- Department of Neurology, Bethune International Peace Hospital, Zhongshan Road (West), Shijiazhuang, Hebei Province, P.R. China
| | - Cong Li
- Department of Neurology, Bethune International Peace Hospital, Zhongshan Road (West), Shijiazhuang, Hebei Province, P.R. China
| | - Anca D Buzoianu
- The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Dade road No.111, Yuexiu District, Guangzhou, P.R. China; Department of Neurosurgery, Chinese Medicine Hospital of Guangdong Province, Guangzhou University of Chinese Medicine, Dade road No.111, Yuexiu District, Guangzhou, P.R. China
| | - José Vicente Lafuente
- Department of Clinical Pharmacology and Toxicology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ala Nozari
- Department of Anesthesiology, Boston University, Albany str, Boston, MA, USA
| | - Per-Ove Sjöqvisst
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden; LaNCE, Dept. Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.
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Koza J, Liebert A, Hołyńska-Iwan I, Piskorska E, Kaczorowski P. Reduced sodium absorption in the colon under serotonin is a potential factor aggravating secretory diarrhea. ADV CLIN EXP MED 2022; 32:481-488. [PMID: 36374545 DOI: 10.17219/acem/155111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 02/14/2022] [Accepted: 10/03/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Serotonin is a substance with a propulsive effect on the gastrointestinal tract. It stimulates the intestinal secretion of water and electrolytes, and plays an important role in the pathophysiology of secretory diarrhea. However, the influence of serotonin on intestinal absorption is very poorly understood. OBJECTIVES This study aimed to evaluate the serotonin and selected antagonists of serotonin receptors, i.e., ondansetron (5-HT3) and GR113808 (5-HT4), on electrogenic sodium ion absorption in the colon. MATERIAL AND METHODS The electrophysiologic method developed by Ussing and modified with a stimulating function on the mucosal side of the isolated colon wall was used. The influence of selected serotonergic compounds on the electrogenic transport of sodium ions under stationary conditions and mechanical stimulation was investigated. For this purpose, experiments were performed on specimens of isolated rabbit colon. Amiloride and bumetanide were used as reagents directly controlling individual ion transport. The data were analyzed using tests for paired samples (paired sample t-test, Wilcoxon signed-rank test and one-sided sign test). RESULTS Serotonin reduced stationary and stimulated colonic sodium absorption. The 5-HT3 receptor antagonist did not influence the studied phenomenon, while 5-HT4 antagonists acted contrary to serotonin. CONCLUSIONS Serotonin reduces both stationary and stimulated sodium ion absorption, thus playing an important role in the pathophysiology of secretory diarrhea. The described phenomenon depends on serotonin's action on 5-HT4 receptors.
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Affiliation(s)
- Jarosław Koza
- Department of Gastroenterology and Nutrition Disorders, Faculty of Health Sciences, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
- Clinic of Gastroenterology, Jan Biziel University Hospital No. 2 in Bydgoszcz, Poland
| | - Ariel Liebert
- Department of Gastroenterology and Nutrition Disorders, Faculty of Health Sciences, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
- Clinic of Gastroenterology, Jan Biziel University Hospital No. 2 in Bydgoszcz, Poland
| | - Iga Hołyńska-Iwan
- Department of Pathobiochemistry and Clinical Chemistry, Faculty of Pharmacy, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
| | - Elżbieta Piskorska
- Department of Pathobiochemistry and Clinical Chemistry, Faculty of Pharmacy, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
| | - Piotr Kaczorowski
- Department of Pathobiochemistry and Clinical Chemistry, Faculty of Pharmacy, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland
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Jillani U, Mudassir J, Ijaz QA, Latif S, Qamar N, Aleem A, Ali E, Abbas K, Wazir MA, Hussain A, Abbas N, Arshad MS. Design and Characterization of Agarose/HPMC Buccal Films Bearing Ondansetron HCl In Vitro and In Vivo: Enhancement Using Iontophoretic and Chemical Approaches. Biomed Res Int 2022; 2022:1662194. [PMID: 35372569 PMCID: PMC8975656 DOI: 10.1155/2022/1662194] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/16/2021] [Accepted: 02/24/2022] [Indexed: 11/23/2022]
Abstract
The study was aimed at designing and characterizing the ondansetron hydrochloride (OND) bearing agarose (AG), and hydroxypropyl methyl cellulose (HPMC) mucoadhesive buccal films employing glycerol as a plasticizer. The buccal delivery of ondansetron hydrochloride was remarkably boosted by employing physical (iontophoresis) and chemical enhancement approaches (chemical penetration enhancers). To explore the influence of different formulation components, i.e., agarose, hydroxypropyl methyl cellulose (HPMC), and glycerol on various evaluating parameters, i.e., tensile strength, swelling index, ex vivo mucoadhesion time, and subsequently on in vitro drug release, a D-optimal design was opted. A buccal film bearing OND was mounted on bovine buccal mucosa for ex vivo permeation studies and impact of chemical and physical enhancement techniques on the permeation profile was also analysed. A linear release profile was revealed in in vitro drug release of OND over 60 minutes and outcomes ascertained the direct relationship between HPMC content and in vitro drug release and inverse relationship was depicted by AG content. The FTIR and DSC thermal analysis was executed to determine the physicochemical interactions and results exposed no chemical interactions between drug and polymers. The drug (OND) appeared as tiny crystals on smooth film surface during scanning electron microscopy (SEM) analysis. A notable enhancement in permeation flux, i.e., 761.02 μg/min of OND during ex vivo permeation studies was witnessed after the application of current (0.5-1 mA) without any time lag and with enhancement ratio of 3.107. A time lag of 15 minutes, 19 minutes, and 26 minutes with permeation flux of 475.34 μg/min, 399.35 μg/min, and 244.81 μg/min was observed after chemical enhancer pretreatment with propylene glycol, Tween 80, and passive, respectively. Rabbit was employed as the experimental animal for pharmacokinetic studies (in vivo) and cats for pharmacological activity (in vivo), and the results illustrated the enhanced bioavailablity (2.88 times) in the iontophoresis animal group when compared with the rabbits of control group. Likewise, a remarkable reduction in emesis events was recorded in cats of iontophoresis group. Conclusively, the histopathological examinations on excised buccal mucosa unveiled no severe necrotic or cytopathetic outcomes of current.
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Affiliation(s)
- Umair Jillani
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Jahanzeb Mudassir
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Qazi Amir Ijaz
- Akson College of Pharmacy, Mirpur University of Science and Technology, Azad Jammu and Kashmir, Pakistan
- College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Sumera Latif
- Institute of Pharmacy, Lahore college for women university, Lahore, Pakistan
| | - Nadia Qamar
- College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Ambreen Aleem
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Ejaz Ali
- College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Khizar Abbas
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | | | - Amjad Hussain
- College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Nasir Abbas
- College of Pharmacy, University of the Punjab, Lahore, Pakistan
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Goodarzi P, Habibi M, Roberts K, Sutton J, Shili CN, Lin D, Pezeshki A. Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet Model. Nutrients 2021; 13:2561. [PMID: 34444719 PMCID: PMC8399558 DOI: 10.3390/nu13082561] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/10/2021] [Accepted: 07/21/2021] [Indexed: 12/21/2022] Open
Abstract
Low birthweight (LBW) is associated with metabolic complications, such as glucose and lipid metabolism disturbances in early life. The objective of this study was to assess: (1) the effect of dietary tryptophan (Trp) on glucose and fat metabolism in an LBW piglet model, and (2) the role peripheral 5-hydroxytryptamine type 3 (5HT3) receptors in regulating the feeding behavior in LBW piglets fed with Trp-supplemented diets. Seven-day-old piglets were assigned to 4 treatments: normal birthweight-0%Trp (NBW-T0), LBW-0%Trp (LBW-T0), LBW-0.4%Trp (LBW-T0.4), and LBW-0.8%Trp (LBW-T0.8) for 3 weeks. Compared to LBW-T0, the blood glucose was decreased in LBW-T0.8 at 60 min following the meal test, and the triglycerides were lower in LBW-T0.4 and LBW-T0.8. Relative to LBW-T0, LBW-T0.8 had a lower transcript and protein abundance of hepatic glucose transporter-2, a higher mRNA abundance of glucokinase, and a lower transcript of phosphoenolpyruvate carboxykinase. LBW-T0.4 tended to have a lower protein abundance of sodium-glucose co-transporter 1 in the jejunum. In comparison with LBW-T0, LBW-T0.4 and LBW-T0.8 had a lower transcript of hepatic acetyl-CoA carboxylase, and LBW-T0.4 had a higher transcript of 3-hydroxyacyl-CoA dehydrogenase. Blocking 5-HT3 receptors with ondansetron reduced the feed intake in all groups, with a transient effect on LBW-T0, but more persistent effect on LBW-T0.8 and NBW-T0. In conclusion, Trp supplementation reduced the hepatic lipogenesis and gluconeogenesis, but increased the glycolysis in LBW piglets. Peripheral serotonin is likely involved in the regulation of feeding behavior, particularly in LBW piglets fed diets supplemented with a higher dose of Trp.
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Affiliation(s)
- Parniyan Goodarzi
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA; (P.G.); (M.H.); (K.R.); (J.S.); (C.N.S.)
| | - Mohammad Habibi
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA; (P.G.); (M.H.); (K.R.); (J.S.); (C.N.S.)
| | - Kennedy Roberts
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA; (P.G.); (M.H.); (K.R.); (J.S.); (C.N.S.)
| | - Julia Sutton
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA; (P.G.); (M.H.); (K.R.); (J.S.); (C.N.S.)
| | - Cedrick Ndhumba Shili
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA; (P.G.); (M.H.); (K.R.); (J.S.); (C.N.S.)
| | - Dingbo Lin
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA;
| | - Adel Pezeshki
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA; (P.G.); (M.H.); (K.R.); (J.S.); (C.N.S.)
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11
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Rahmadi M, Su'aida N, Yustisari P, Agung Dewaandika W, Oktavia Hanaratri E, Andarsari MR, Sumarno, Aryani T. Gastroprotective effect of fluvoxamine and ondansetron on stress-induced gastric ulcers in mice. J Basic Clin Physiol Pharmacol 2021; 32:485-490. [PMID: 34214344 DOI: 10.1515/jbcpp-2020-0424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 02/21/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVES The association between stress and gastric ulcers has been well reported. This study is divided into two parts: the first part of this study is consisted of analyzing the effect of fluvoxamine administration by intracerebroventricular (ICV) and intraperitoneal (IP) injections on stress-induced gastric ulcers. The second part investigates the effect of ondansetron in influencing the protection of the gastric mucous by giving fluvoxamine to the mice before being induced with stress. METHODS Water immersion restraint stress (WIRS) was used to induce stress. Fluvoxamine 50 and 100 mg/kg by IP injection, fluvoxamine 9.3 µg, and 18.6 µg by ICV injection 30 min before the induction of stress. Meanwhile, single drug and in combination administered to the mice, ondansetron 3 mg/kg was given by IP at 60 min, and fluvoxamine 50, 100 mg/kg orally at 30 min before stress induction. RESULTS The obtained results show fluvoxamine 50 and 100 mg/kg by IP, and fluvoxamine 18.6 µg by ICV had significantly reduced ulcer index with p<0.005, p<0.001, and p<0.005 while fluvoxamine 9.3 µg showed the insignificant result. Fluvoxamine 50 mg/kg, fluvoxamine 100 mg/kg, and ondansetron 3 mg/kg monotherapy have a significant reduction in ulcers with p<0.005, p<0.001, and p<0.05, while the combination drugs showed an insignificant reduction in ulcers. CONCLUSIONS Fluvoxamine with different administration routes and ondansetron monotherapy before stress reduce the occurrence of gastric ulcers, while the combination drugs did not increase the protective effect of the gastric mucosa.
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Affiliation(s)
- Mahardian Rahmadi
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Airlangga, Surabaya, Indonesia
| | - Nily Su'aida
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Airlangga, Surabaya, Indonesia
| | - Pratiwi Yustisari
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Airlangga, Surabaya, Indonesia
| | - Wahyu Agung Dewaandika
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Airlangga, Surabaya, Indonesia
| | - Elma Oktavia Hanaratri
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Airlangga, Surabaya, Indonesia
| | - Mareta Rindang Andarsari
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Airlangga, Surabaya, Indonesia
| | - Sumarno
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Airlangga, Surabaya, Indonesia
| | - Toetik Aryani
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Airlangga, Surabaya, Indonesia
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12
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Sasaki M, Kamiya Y, Bamba K, Onishi T, Matsuda K, Kohno T, Kurabe M, Furutani K, Yanagimura H. Serotonin Plays a Key Role in the Development of Opioid-Induced Hyperalgesia in Mice. J Pain 2021; 22:715-729. [PMID: 33465503 DOI: 10.1016/j.jpain.2020.12.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 01/02/2023]
Abstract
Opioid usage for pain therapy is limited by its undesirable clinical effects, including paradoxical hyperalgesia, also known as opioid-induced hyperalgesia (OIH). However, the mechanisms associated with the development and maintenance of OIH remain unclear. Here, we investigated the effect of serotonin inhibition by the 5-HT3 receptor antagonist, ondansetron (OND), as well as serotonin deprivation via its synthesis inhibitor para-chlorophenylalanine, on mouse OIH models, with particular focus on astrocyte activation. Co-administering of OND and morphine, in combination with serotonin depletion, inhibited mechanical hyperalgesia and astrocyte activation in the spinal dorsal horn of mouse OIH models. Although previous studies have suggested that activation of astrocytes in the spinal dorsal horn is essential for the development and maintenance of OIH, herein, treatment with carbenoxolone (CBX), a gap junction inhibitor that suppresses astrocyte activation, did not ameliorate mechanical hyperalgesia in mouse OIH models. These results indicate that serotonin in the spinal dorsal horn, and activation of the 5-HT3 receptor play essential roles in OIH induced by chronic morphine, while astrocyte activation in the spinal dorsal horn serves as a secondary effect of OIH. Our findings further suggest that serotonergic regulation in the spinal dorsal horn may be a therapeutic target of OIH. PERSPECTIVE: The current study revealed that the descending serotonergic pain-facilitatory system in the spinal dorsal horn is crucial in OIH, and that activation of astrocytes is a secondary phenotype of OIH. Our study offers new therapeutic targets for OIH and may help reduce inappropriate opioid use.
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Affiliation(s)
- Mika Sasaki
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Yoshinori Kamiya
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan.
| | - Keiko Bamba
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Takeshi Onishi
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Keiichiro Matsuda
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Tatsuro Kohno
- Department of Anesthesiology, International University of Health and Welfare, Narita City, Japan
| | - Miyuki Kurabe
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Kenta Furutani
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Harue Yanagimura
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
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13
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Zirak MR, Karimi G, Rahimian R, Jafarian AH, Hayes AW, Mehri S. Tropisetron ameliorates cyclophosphamide-induced hemorrhagic cystitis in rats. Eur J Pharmacol 2020; 883:173310. [PMID: 32619674 DOI: 10.1016/j.ejphar.2020.173310] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/20/2020] [Accepted: 06/22/2020] [Indexed: 01/05/2023]
Abstract
Hemorrhagic cystitis is one of the most important complications of cyclophosphamide, a drug widely used in cancer chemotherapy and bone marrow transplantation. 5-HT3 antagonists are anti-emetic agents and have been shown to have notable anti-inflammatory and antioxidant properties. This study was designed to investigate the possible protective effects of tropisetron against cyclophosphamide-induced hemorrhagic cystitis in rats. Hemorrhagic cystitis was induced in female rats by cyclophosphamide (270 mg/kg). Tropisetron (2.5, 5 and 7.5 mg/kg), granisetron (2.5 and 5 mg/kg), and ondansetron (5 mg/kg) were injected 15 min before, 4 and 8 h after cyclophosphamide. To evaluate the role of alpha7 nicotinic acetylcholine receptor (α7nAChR), its antagonist, methyllycaconitine (5 mg/kg) was administered 30 min before tropisetron. After 24 h, animals were killed under anesthesia. Macroscopic and histological changes were evaluated. Malondialdehyde (MDA), glutathione (GSH) and Evans blue were measured spectrophotometrically. Furthermore, the protein levels of p38 mitogen-activated protein kinases (P38 MAPK), p-P38, signal transducer and activator of transcription 3 (STAT3), p-STAT3 and Poly (ADP-ribose) polymerase (PARP) were determined using Western blot. Cyclophosphamide administration significantly induced histopathological damages and increased MDA, p-p38/p38, p-STAT3/STAT3, and PARP levels compared with the saline group. Tropisetron treatment diminished histopathological injuries as well as MDA level, and STAT3 activity compared to cyclophosphamide treated rats. Co-administration of methyllycaconitine with tropisetron, partially or completely reversed the protective effects of tropisetron. Our results showed that prophylactic administration of tropisetron markedly ameliorated the cyclophosphamide-induced bladder hemorrhage and inflammation in rats. These effects of tropisetron were α7nAChR dependent.
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Affiliation(s)
- Mohammad Reza Zirak
- Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gholamreza Karimi
- Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Rahimian
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada
| | - Amir Hossein Jafarian
- Cancer Molecular Pathology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A Wallace Hayes
- University of South Florida College of Public Health, Tampa, FL, USA; Michigan State University, East Lansing, MI, USA
| | - Soghra Mehri
- Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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14
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Afzal A, Khan A, Khan A, Farooqi R, Khan BT, Ara I. Effect of paroxetine on intestinal motility in the presence of ondansetron. Pak J Pharm Sci 2020; 33:1169-1172. [PMID: 33191244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chemotherapy, radiotherapy, surgery and depression are the conditions that run in parallel fashions. All these conditions cause the release of an increased amount of serotonin in the body. Serotonin acts on these 5HT3 receptors and causes nausea and vomiting. Ondansetron acts by blocking serotonin from acting on the receptors and thus is useful in decreasing episodes of nausea and vomiting but when used concomitantly with SSRIs (selective serotonin reuptake inhibitors) as cancer patient also suffered from depression. This combination tends to decrease the efficacy of ondansetron. The present study was carried out to observe the modulatory role of ondansetron on ileal smooth muscle motility in vitro. Experiments were performed in four groups (n=6) and ileal smooth muscle activity was recorded on the power lab (USA). The effects of increasing concentrations of serotonin, ondansetron and paroxetine alone were observed. In the fourth group effects of paroxetine in the presence of fixed concentration (1ml) of ondansetron (10-6M) was observed. The maximum response obtained by serotonin served as a control for our study (100%). Paroxetine response on intestinal motility was completely blocked in the presence of ondansetron. Our findings hence, reinforce the hypothesis that paroxetine decreases the antiemetic activity of serotonin antagonist ondansetron, by super sensitization of serotonergic receptors resulting in an increased incidence of nausea and vomiting in cancer patient despite adequate antiemetic prophylaxis.
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Affiliation(s)
- Ayesha Afzal
- Department of Pharmacology, Wah Medical College (NUMS), Wah Cantt, Pakistan
| | - Ammara Khan
- Department of Pharmacology, Nawaz Sharif Medical College University of Gujrat, Gujrat, Pakistan
| | - Asma Khan
- Department Pharmacology, Fazaia Medical College (NUMS), Islamabad, Pakistan
| | - Rashida Farooqi
- Department of Pharmacology, Wah Medical College (NUMS), Wah Cantt, Pakistan
| | - Bushra Tayyaba Khan
- Department of Pharmacology, Army medical College (NUMS), Rawalpindi, Pakistan
| | - Iffat Ara
- Department of Pharmacology, Wah Medical College (NUMS), Wah Cantt, Pakistan
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15
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Miller J, House S, Lovato L, Meltzer A, Hahn B, Avarello J, Plasse T, Kalfus I, Fathi R, Silverman R. Absence of QT prolongation after administration of a 24-mg bimodal-release ondansetron pill (RHB-102). Am J Emerg Med 2020; 43:205-209. [PMID: 32139212 DOI: 10.1016/j.ajem.2020.02.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 02/09/2020] [Accepted: 02/25/2020] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES Prospective data evaluating the effect of ondansetron on the corrected QT (QTc) interval is lacking in emergency department clinical use. As part of a randomized trial of a 24-mg bimodal-release ondansetron (RHB-102) pill, we tested the effect of RHB-102 compared to placebo on QTc change. METHODS This was a planned safety outcome analysis within a multicenter, double-blind, placebo-controlled trial. The trial compared the effects of RHB-102 among patients ≥12 years who presented to 21 centers with symptoms of acute gastroenteritis. Patients with an initial baseline electrocardiogram as well as a follow-up electrocardiogram 4 h later were included in the analysis. The safety endpoint for this analysis was the change from baseline in QTc interval at 4 h, the median time at which ondansetron serum level peaks. RESULTS A total of 147 patients were included with a mean baseline QTc in the RHB-102 and placebo arms of 410 and 406 ms, respectively. There was no difference in the change in QTc at 4 h post-study drug administration between the RHB-102 (+4, 95% CI 1-8 ms) and placebo group (+5, 95% CI 1-9 ms). In the RHB-102 arm, 6.6% of patients had a QTc change >30 ms and in the placebo arm 3.6% (p = 0.48). No patient in either arm had a QTc change >60 ms after study drug administration. CONCLUSION In patients with normal baseline QTc, 24-mg bimodal-release ondansetron did not prolong the QTc in comparison to placebo.
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Affiliation(s)
- Joseph Miller
- Department of Emergency Medicine, Henry Ford Hospital and Wayne State University, Detroit, MI, United States.
| | - Stacey House
- Division of Emergency Medicine, Washington University School of Medicine, St. Louis, MO, United States.
| | - Luis Lovato
- Department of Emergency Medicine, University of California Los Angeles, Los Angeles, CA, United States.
| | - Andrew Meltzer
- Department of Emergency Medicine, George Washington University School of Medicine & Health Sciences, Washington, DC, United States.
| | - Barry Hahn
- Department of Emergency Medicine, Northwell Health, Queens, NY, United States
| | - Jahn Avarello
- Department of Emergency Medicine, Northwell Health, Queens, NY, United States.
| | - Terry Plasse
- RedHill Biopharma Ltd., 21 Ha'arba'a Street, Tel Aviv 64739, Israel.
| | - Ira Kalfus
- RedHill Biopharma Ltd., 21 Ha'arba'a Street, Tel Aviv 64739, Israel.
| | - Reza Fathi
- RedHill Biopharma Ltd., 21 Ha'arba'a Street, Tel Aviv 64739, Israel.
| | - Robert Silverman
- Department of Emergency Medicine, Northwell Health, Queens, NY, United States.
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16
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Shinohara M, Shinohara M, Zhao J, Fu Y, Liu CC, Kanekiyo T, Bu G. 5-HT3 Antagonist Ondansetron Increases apoE Secretion by Modulating the LXR-ABCA1 Pathway. Int J Mol Sci 2019; 20:ijms20061488. [PMID: 30934555 PMCID: PMC6471172 DOI: 10.3390/ijms20061488] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/10/2019] [Accepted: 03/21/2019] [Indexed: 12/20/2022] Open
Abstract
Apolipoprotein E (apoE) is linked to the risk for Alzheimer’s disease (AD) and thus has been suggested to be an important therapeutic target. In our drug screening effort, we identified Ondansetron (OS), an FDA-approved 5-HT3 antagonist, as an apoE-modulating drug. OS at low micromolar concentrations significantly increased apoE secretion from immortalized astrocytes and primary astrocytes derived from apoE3 and apoE4-targeted replacement mice without generating cellular toxicity. Other 5-HT3 antagonists also had similar effects as OS, though their effects were milder and required higher concentrations. Antagonists for other 5-HT receptors did not increase apoE secretion. OS also increased mRNA and protein levels of the ATB-binding cassette protein A1 (ABCA1), which is involved in lipidation and secretion of apoE. Accordingly, OS increased high molecular weight apoE. Moreover, the liver X receptor (LXR) and ABCA1 antagonists blocked the OS-induced increase of apoE secretion, indicating that the LXR-ABCA1 pathway is involved in the OS-mediated facilitation of apoE secretion from astrocytes. The effects of OS on apoE and ABCA1 were also observed in human astrocytes derived from induced pluripotent stem cells (iPSC) carrying the APOE ε3/ε3 and APOE ε4/ε4 genotypes. Oral administration of OS at clinically-relevant doses affected apoE levels in the liver, though the effects in the brain were not observed. Collectively, though further studies are needed to probe its effects in vivo, OS could be a potential therapeutic drug for AD by modulating poE metabolism through the LXR-ABCA1 pathway.
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Affiliation(s)
- Motoko Shinohara
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
- Department of Aging Neurobiology, National Center for Geriatrics and Gerontology, Aichi 474-8511, Japan.
| | - Mitsuru Shinohara
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
- Department of Aging Neurobiology, National Center for Geriatrics and Gerontology, Aichi 474-8511, Japan.
| | - Jing Zhao
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
| | - Yuan Fu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
| | - Chia-Chen Liu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
| | - Takahisa Kanekiyo
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
- Neuroscience Graduate Program, Mayo Clinic, Jacksonville, FL 32224, USA.
| | - Guojun Bu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
- Neuroscience Graduate Program, Mayo Clinic, Jacksonville, FL 32224, USA.
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17
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Stern ER, Shahab R, Grimaldi SJ, Leibu E, Murrough JW, Fleysher L, Parides MK, Coffey BJ, Burdick KE, Goodman WK. High-dose ondansetron reduces activation of interoceptive and sensorimotor brain regions. Neuropsychopharmacology 2019; 44:390-398. [PMID: 30116006 PMCID: PMC6300545 DOI: 10.1038/s41386-018-0174-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 07/22/2018] [Accepted: 07/29/2018] [Indexed: 01/16/2023]
Abstract
Several psychiatric disorders involve abnormalities of interoception and associated neural circuitry centered on the insula. The development of interventions modulating interoceptive circuits could lead to novel treatment approaches for these disorders. The 5-HT3 receptor antagonist ondansetron is a good candidate for the modulation of interoceptive circuits, as 5-HT3 receptors are located abundantly on sensory pathways and ondansetron has shown some clinical utility in disorders characterized by sensory and interoceptive abnormalities. The present study tested the ability of three different doses of ondansetron to engage neural regions involved in interoception to determine the drug's utility as a therapeutic agent to target circuit abnormalities in patients. Fifty-three healthy subjects were randomized to receive a single 8-mg (n = 18), 16-mg (n = 17), or 24-mg (n = 18) dose of ondansetron and placebo before MRI scanning on separate days. Subjects performed an fMRI task previously shown to engage interoceptive circuitry in which they viewed videos depicting body movements/sensation and control videos. The results revealed a highly significant relationship between dosage and activation in bilateral insula, somatosensory and premotor regions, cingulate cortex, and temporal cortex for control but not body-focused videos. These effects were driven by a robust reduction in activation for ondansetron compared to placebo for the 24-mg group, with weaker effects for the 16-mg and 8-mg groups. In conclusion, high-dose ondansetron reduces activation of several areas important for interoception, including insula and sensorimotor cortical regions. This study reveals the potential utility of this drug in modulating hyperactivity in these regions in patients.
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Affiliation(s)
- Emily R Stern
- Department of Psychiatry, The New York University School of Medicine, New York, NY, USA.
- The Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, USA.
| | - Rebbia Shahab
- Department of Psychiatry, The New York University School of Medicine, New York, NY, USA
- The Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, USA
| | | | - Evan Leibu
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - James W Murrough
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lazar Fleysher
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Michael K Parides
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Barbara J Coffey
- Department of Psychiatry, University of Miami Medical School, Miami, FL, USA
| | | | - Wayne K Goodman
- Department of Psychiatry, Baylor College of Medicine, Houston, TX, USA
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Patel R, Dickenson AH. Modality selective roles of pro-nociceptive spinal 5-HT 2A and 5-HT 3 receptors in normal and neuropathic states. Neuropharmacology 2018; 143:29-37. [PMID: 30240783 PMCID: PMC6277848 DOI: 10.1016/j.neuropharm.2018.09.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/23/2018] [Accepted: 09/17/2018] [Indexed: 12/20/2022]
Abstract
Descending brainstem control of spinal nociceptive processing permits a dynamic and adaptive modulation of ascending sensory information. Chronic pain states are frequently associated with enhanced descending excitatory drive mediated predominantly through serotonergic neurones in the rostral ventromedial medulla. In this study, we examine the roles of spinal 5-HT2A and 5-HT3 receptors in modulating ascending sensory output in normal and neuropathic states. In vivo electrophysiology was performed in anaesthetised spinal nerve ligated (SNL) and sham-operated rats to record from wide dynamic range neurones in the ventral posterolateral thalamus. In sham rats, block of spinal 5-HT3Rs with ondansetron revealed tonic facilitation of noxious punctate mechanical stimulation, whereas blocking 5-HT2ARs with ketanserin had minimal effect on neuronal responses to evoked stimuli. The inhibitory profiles of both drugs were altered in SNL rats; ondansetron additionally inhibited neuronal responses to lower intensity punctate mechanical stimuli and noxious heat evoked responses, whereas ketanserin inhibited innocuous and noxious evaporative cooling evoked responses. Neither drug had any effect on dynamic brush evoked responses nor on spontaneous firing rates in both sham and SNL rats. These data identify novel modality and intensity selective facilitatory roles of spinal 5-HT2A and 5-HT3 receptors on sensory neuronal processing within the spinothalamic-somatosensory cortical pathway.
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Affiliation(s)
- Ryan Patel
- University College London, Gower Street, Department of Neuroscience, Physiology and Pharmacology, London, WC1E 6BT, UK.
| | - Anthony H Dickenson
- University College London, Gower Street, Department of Neuroscience, Physiology and Pharmacology, London, WC1E 6BT, UK
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Niewiński PA, Wojciechowski R, Śliwiński M, Hurkacz ME, Głowacka K, Orzechowska-Juzwenko K, Wiela-Hojeńska AK. CYP2D6 basic genotyping as a potential tool to improve the antiemetic efficacy of ondansetron in prophylaxis of postoperative nausea and vomiting. ADV CLIN EXP MED 2018; 27:1499-1503. [PMID: 30058787 DOI: 10.17219/acem/69451] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Postoperative nausea and vomiting (PONV) is a common complication after anesthesia and surgery. Ondansetron is one of the most widely used drugs in the prophylaxis of PONV and is extensively metabolized in humans. In vitro metabolism studies have shown that ondansetron is a substrate for human hepatic cytochrome P450 enzymes. The cytochrome P450 (human hepatic cytochrome [CYP]) 2D6 inhibitor quinidine reduced in vitro hydroxylation of ondansetron, which indicates the important role of CYP2D6 in ondansetron metabolism. Genotyping these alleles allows the prediction of the extensive metabolizer (EM) and poor metabolizer (PM) phenotypes with approx. 90-96% accuracy. OBJECTIVES The aim of our study was to evaluate whether the pharmacological prevention of PONV with ondansetron depends on the most common CYP2D6 alleles (CYP2D6*1, *3, *4, *5, and NxN [multiplication gene]). MATERIAL AND METHODS Genotyping for the defective CYP2D6*3, CYP2D6*4 and CYP2D6*5 alleles among 93 surgical female patients was performed by polymerase chain reaction amplification and restriction fragment length polymorphism (PCR-RFLP). RESULTS The genetically defined EMs and ultrarapid metabolizers (UMs) of CYP2D6 had a statistically significant (p < 0.02) higher frequency of nausea and vomiting after strumectomy (33.3%) than intermediate metabolizers (IMs) (10.3%) and PMs (0%). The relative risk (odds ratio [OR]) of PONV occurrence was 5 times higher for EMs/UMs than IMs/PMs. CONCLUSIONS Our results suggest that PONV treatment with ondansetron could be improved by basic, widely available and inexpensive PCR-RFLP genetic tests.
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Affiliation(s)
- Przemysław A Niewiński
- Department of Clinical Pharmacology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, Poland
| | - Robert Wojciechowski
- Department of Anesthesiology and Intensive Therapy, Faculty of Medicine, Wroclaw Medical University, Poland
| | - Marek Śliwiński
- Department of Anesthesiology and Intensive Therapy, Faculty of Medicine, Wroclaw Medical University, Poland
| | - Magdalena E Hurkacz
- Department of Clinical Pharmacology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, Poland
| | - Krystyna Głowacka
- Department of Clinical Pharmacology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, Poland
| | - Krystyna Orzechowska-Juzwenko
- Department of Clinical Pharmacology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, Poland
| | - Anna K Wiela-Hojeńska
- Department of Clinical Pharmacology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, Poland
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20
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Kiesewetter B, Duan H, Lamm W, Haug A, Riss P, Selberherr A, Scheuba C, Raderer M. Oral Ondansetron Offers Effective Antidiarrheal Activity for Carcinoid Syndrome Refractory to Somatostatin Analogs. Oncologist 2018; 24:255-258. [PMID: 30171068 DOI: 10.1634/theoncologist.2018-0191] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/05/2018] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Somatostatin analogs (SSAs) are standard for symptomatic patients with neuroendocrine tumors (NETs). However, most patients experience tachyphylaxis, and limited options exist for this so-called "refractory carcinoid syndrome." Recently, 5-HT3 antagonist ondansetron has been associated with reduction of bowel movement in a small series. The aim of this analysis was to assess effectiveness of ondansetron for symptomatic treatment of carcinoid syndrome. DESIGN AND PATIENTS We have analyzed patients given ondansetron as bridging therapy for refractory carcinoid syndrome. The dose was 2 × 8 mg for 5 days, followed by reduction to 1 × 8 mg in case of benefit. RESULTS A total of 14 patients with small bowel NETs metastatic to the liver were identified. All patients had been treated with SSAs for a median time of 18 months before aggravation of diarrhea. One patient had to be excluded because of an underlying infectious cause of diarrhea. The median number of daily bowel movements was 7 (range, 5-13) before initiation of therapy. At this time, seven patients had stable disease, whereas six patients showed radiological progression with symptomatic breakthrough. All 13 patients were scheduled for salvage therapy. Remarkably, in 85% (11/13) ondansetron resulted in a clinically relevant decrease of bowel movements to a median of 3 (1-4). The median time of ondansetron intake was 29 days (7 days to 29 months). In four patients, diarrhea recurred after initial improvement at an interval of 22-43 days, whereas the remaining seven had an ongoing benefit, including two long-term responders who refused further therapy because of pronounced decrease of symptoms (ondansetron for 14+ and 29+ months). CONCLUSION Ondansetron offers symptomatic relief in the majority of patients. Although there was no influence on 5-HIAA levels, evidence from two patients suggests prolonged benefit. IMPLICATIONS FOR PRACTICE Somatostatin analogs are standard treatment in patients with carcinoid syndrome and have an overall response rate of up to 50%. This symptomatic benefit, however, is lost in many patients because of the development of tachyphylaxis or tumor progression. Patients with this "refractory carcinoid syndrome" pose a therapeutic challenge and are sometimes faced with a detrimental effect on quality of life. In this article, the authors suggest the 5-HT3 receptor antagonist ondansetron as potential symptomatic therapy for patients with refractory diarrhea due to carcinoid syndrome. Although the number of patients in this retrospective series is limited, treatment was easily applicable, feasible, and safe and resulted in an ongoing symptomatic benefit in 85% of patients, including two long-term responders.
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Affiliation(s)
- Barbara Kiesewetter
- Division of Oncology, Department of Internal Medicine I, Medical University Vienna, Vienna, Austria
- Neuroendocrine Tumor Unit, Comprehensive Cancer Center Vienna, Medical University Vienna, Vienna, Austria
| | - Heying Duan
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-guided Therapy, Medical University Vienna, Vienna, Austria
| | - Wolfgang Lamm
- Division of Oncology, Department of Internal Medicine I, Medical University Vienna, Vienna, Austria
- Neuroendocrine Tumor Unit, Comprehensive Cancer Center Vienna, Medical University Vienna, Vienna, Austria
| | - Alexander Haug
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-guided Therapy, Medical University Vienna, Vienna, Austria
| | - Philipp Riss
- Section of Endocrine Surgery, Division of General Surgery, Department of Surgery, Medical University Vienna, Vienna, Austria
- Neuroendocrine Tumor Unit, Comprehensive Cancer Center Vienna, Medical University Vienna, Vienna, Austria
| | - Andreas Selberherr
- Section of Endocrine Surgery, Division of General Surgery, Department of Surgery, Medical University Vienna, Vienna, Austria
- Neuroendocrine Tumor Unit, Comprehensive Cancer Center Vienna, Medical University Vienna, Vienna, Austria
| | - Christian Scheuba
- Section of Endocrine Surgery, Division of General Surgery, Department of Surgery, Medical University Vienna, Vienna, Austria
- Neuroendocrine Tumor Unit, Comprehensive Cancer Center Vienna, Medical University Vienna, Vienna, Austria
| | - Markus Raderer
- Division of Oncology, Department of Internal Medicine I, Medical University Vienna, Vienna, Austria
- Neuroendocrine Tumor Unit, Comprehensive Cancer Center Vienna, Medical University Vienna, Vienna, Austria
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Ko JS, Guo S, Hassel J, Celestino-Soper P, Lynnes TC, Tisdale JE, Zheng JJ, Taylor SE, Foroud T, Murray MD, Kovacs RJ, Li X, Lin SF, Chen Z, Vatta M, Chen PS, Rubart M. Ondansetron blocks wild-type and p.F503L variant small-conductance Ca 2+-activated K + channels. Am J Physiol Heart Circ Physiol 2018; 315:H375-H388. [PMID: 29677462 PMCID: PMC6139629 DOI: 10.1152/ajpheart.00479.2017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 04/11/2018] [Accepted: 04/11/2018] [Indexed: 01/24/2023]
Abstract
Apamin-sensitive small-conductance Ca2+-activated K+ (SK) current ( IKAS) is encoded by Ca2+-activated K+ channel subfamily N ( KCNN) genes. IKAS importantly contributes to cardiac repolarization in conditions associated with reduced repolarization reserve. To test the hypothesis that IKAS inhibition contributes to drug-induced long QT syndrome (diLQTS), we screened for KCNN variants among patients with diLQTS, determined the properties of heterologously expressed wild-type (WT) and variant KCNN channels, and determined if the 5-HT3 receptor antagonist ondansetron blocks IKAS. We searched 2,306,335 records in the Indiana Network for Patient Care and found 11 patients with diLQTS who had DNA available in the Indiana Biobank. DNA sequencing discovered a heterozygous KCNN2 variant (p.F503L) in a 52-yr-old woman presenting with corrected QT interval prolongation at baseline (473 ms) and further corrected QT interval lengthening (601 ms) after oral administration of ondansetron. That patient was also heterozygous for the p.S38G and p.P2835S variants of the QT-controlling genes KCNE1 and ankyrin 2, respectively. Patch-clamp experiments revealed that the p.F503L KCNN2 variant heterologously expressed in human embryonic kidney (HEK)-293 cells augmented Ca2+ sensitivity, increasing IKAS density. The fraction of total F503L-KCNN2 protein retained in the membrane was higher than that of WT KCNN2 protein. Ondansetron at nanomolar concentrations inhibited WT and p.F503L SK2 channels expressed in HEK-293 cells as well as native SK channels in ventricular cardiomyocytes. Ondansetron-induced IKAS inhibition was also demonstrated in Langendorff-perfused murine hearts. In conclusion, the heterozygous p.F503L KCNN2 variant increases Ca2+ sensitivity and IKAS density in transfected HEK-293 cells. Ondansetron at therapeutic (i.e., nanomolar) concentrations is a potent IKAS blocker. NEW & NOTEWORTHY We showed that ondansetron, a 5-HT3 receptor antagonist, blocks small-conductance Ca2+-activated K+ (SK) current. Ondansetron may be useful in controlling arrhythmias in which increased SK current is a likely contributor. However, its SK-blocking effects may also facilitate the development of drug-induced long QT syndrome.
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Affiliation(s)
- Jum-Suk Ko
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
- Wonkwang University School of Medicine and Hospital, Iksan, South Korea
| | - Shuai Guo
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Jonathan Hassel
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Patricia Celestino-Soper
- Department of Medical and Molecular Genetics, Indiana University School of Medicine , Indianapolis, Indiana
| | - Ty C Lynnes
- Department of Medical and Molecular Genetics, Indiana University School of Medicine , Indianapolis, Indiana
| | - James E Tisdale
- Department of Pharmacy Practice, College of Pharmacy, Purdue University , West Lafayette, Indiana
- Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | | | - Stanley E Taylor
- Department of Biostatistics, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Tatiana Foroud
- Department of Medical and Molecular Genetics, Indiana University School of Medicine , Indianapolis, Indiana
| | - Michael D Murray
- Department of Pharmacy Practice, College of Pharmacy, Purdue University , West Lafayette, Indiana
- Regenstrief Institute , Indianapolis, Indiana
| | - Richard J Kovacs
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Xiaochun Li
- Department of Biostatistics, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Shien-Fong Lin
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
- Institute of Biomedical Engineering, National Chiao-Tung University, Hsin-Chu, Taiwan
| | - Zhenhui Chen
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Matteo Vatta
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
- Department of Medical and Molecular Genetics, Indiana University School of Medicine , Indianapolis, Indiana
- Department of Pediatrics, Riley Heart Research Center, Indiana University School of Medicine , Indianapolis, Indiana
| | - Peng-Sheng Chen
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana
| | - Michael Rubart
- Department of Pediatrics, Riley Heart Research Center, Indiana University School of Medicine , Indianapolis, Indiana
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22
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Silva JC, de Oliveira Júnior RG, Silva MGE, de Lavor ÉM, Soares JMD, de Lima-Saraiva SRG, Diniz TC, Mendes RL, de Alencar Filho EB, Barreiro EJDL, Lima LM, Almeida JRGDS. LASSBio-1586, an N-acylhydrazone derivative, attenuates nociceptive behavior and the inflammatory response in mice. PLoS One 2018; 13:e0199009. [PMID: 30059558 PMCID: PMC6066216 DOI: 10.1371/journal.pone.0199009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 05/24/2018] [Indexed: 12/14/2022] Open
Abstract
Pain and inflammation are complex clinical conditions that are present in a wide variety of disorders. Most drugs used to treat pain and inflammation have potential side effects, which makes it necessary to search for new sources of bioactive molecules. In this paper, we describe the ability of LASSBio-1586, an N-acylhydrazone derivative, to attenuate nociceptive behavior and the inflammatory response in mice. Antinociceptive activity was evaluated through acetic acid-induced writhing and formalin-induced nociception tests. In these experimental models, LASSBio-1586 significantly (p<0.05) reduced nociceptive behavior. Several methods of acute and chronic inflammation induced by different chemical (carrageenan, histamine, croton oil, arachidonic acid) and physical (cotton pellet) agents were used to evaluate the anti-inflammatory effect of LASSBio-1586. LASSBio-1586 exhibited potent anti-inflammatory activity in all tests (p<0.05). Study of the mechanism of action demonstrated the possible involvement of the nitrergic, serotonergic and histamine signaling pathways. In addition, a molecular docking study was performed, indicating that LASSBio-1586 is able to block the COX-2 enzyme, reducing arachidonic acid metabolism and consequently decreasing the production of prostaglandins, which are important inflammatory mediators. In summary, LASSBio-1586 exhibited relevant antinociceptive and anti-inflammatory potential and acted on several targets, making it a candidate for a new multi-target oral anti-inflammatory drug.
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Affiliation(s)
- Juliane Cabral Silva
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Brasil
| | | | - Mariana Gama e Silva
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Brasil
| | - Érica Martins de Lavor
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Brasil
| | - Juliana Mikaelly Dias Soares
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Brasil
| | | | - Tâmara Coimbra Diniz
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Brasil
| | | | | | - Eliezer Jesus de Lacerda Barreiro
- Instituto Nacional de Ciência e Tecnologia de Fármacos e Medicamentos (INCT-INOFAR), Universidade Federal do Rio de Janeiro, Laboratório de Avaliação e Síntese de Substâncias Bioativas (LASSBio), Rio de Janeiro, Brasil
| | - Lídia Moreira Lima
- Instituto Nacional de Ciência e Tecnologia de Fármacos e Medicamentos (INCT-INOFAR), Universidade Federal do Rio de Janeiro, Laboratório de Avaliação e Síntese de Substâncias Bioativas (LASSBio), Rio de Janeiro, Brasil
| | - Jackson Roberto Guedes da Silva Almeida
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Brasil
- Instituto Nacional de Ciência e Tecnologia de Fármacos e Medicamentos (INCT-INOFAR), Universidade Federal do Rio de Janeiro, Laboratório de Avaliação e Síntese de Substâncias Bioativas (LASSBio), Rio de Janeiro, Brasil
- * E-mail:
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23
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Sharma G, Naushad M, Thakur B, Kumar A, Negi P, Saini R, Chahal A, Kumar A, Stadler FJ, Aqil UMH. Sodium Dodecyl Sulphate-Supported Nanocomposite as Drug Carrier System for Controlled Delivery of Ondansetron. Int J Environ Res Public Health 2018; 15:ijerph15030414. [PMID: 29495530 PMCID: PMC5876959 DOI: 10.3390/ijerph15030414] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/19/2018] [Accepted: 02/23/2018] [Indexed: 12/17/2022]
Abstract
Sodium dodecyl sulphate-supported iron silicophosphate (SDS/FeSP) nanocomposite was successfully fabricated by the co-precipitation method. The SDS/FeSP nanocomposite was investigated as a drug carrier for ondansetron. The cumulative drug release of ondansetron was observed at various pH values for different time intervals, i.e., from 20 min to 48 h. A ranking of the drug release was observed at different pHs; pH 2.2 > saline (pH 5.5) > pH 7.4 > pH 9.4 > distilled water. Maximum release of encapsulated drug was found to be about 45.38% at pH 2.2. The cell viability tests of SDS/FeSP nanocomposite concluded that SDS/FeSP nanocomposite was non-cytotoxic in nature.
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Affiliation(s)
- Gaurav Sharma
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
- School of Chemistry, Shoolini University, Solan 173212, India.
| | - Mu Naushad
- Department of Chemistry, College of Science, Bld.#5, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Bharti Thakur
- School of Chemistry, Shoolini University, Solan 173212, India.
| | - Amit Kumar
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
- School of Chemistry, Shoolini University, Solan 173212, India.
| | - Poonam Negi
- School of Pharmaceutical Sciences, Shoolini University, Solan 173212, India.
| | - Reena Saini
- School of Applied Science and Biotechnology, Shoolini University, Solan 173212, India.
| | - Anterpreet Chahal
- School of Applied Science and Biotechnology, Shoolini University, Solan 173212, India.
| | - Ashok Kumar
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan 173234, India.
| | - Florian J Stadler
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - U M H Aqil
- School of Public Health, 3rd Floor, SRM Medical College and Research, Centre, Kattankulathur 603211, India.
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Murozono M, Miyashita R, Takeda A, Ynagita K, Sato E, Ogiwara Y. Co-administration of Cyclosporin A and Ondansetron decreases transient local cerebral ischemic injury in the mouse. Neuro Endocrinol Lett 2017; 38:163-168. [PMID: 28759183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 06/22/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES Several studies indicate that cyclosporin A has a protective effect against brain infarction. In this study, we aimed to determine if co-administration of cyclosporin A and ondansetron could reduce damage caused by cerebral ischemia. METHODS ICR (Charles River Laboratories) mice were subjected to transient focal cerebral ischemia and divided into 4 groups (O, V, C, and Mix). Immediately after reperfusion, each ligand was administered intravenously through the external jugular vein. Group V animals received 0.9% saline alone, group O animals received 0.1 mg/kg ondansetron solution, group C animals received 10 mg/kg cyclosporin A solution, and group Mix received 0.1 mg/kg ondansetron solution and 10 mg/kg cyclosporin A solution. RESULTS Our results showed that the volume of brain infarction induced by middle cerebral artery occlusion in group Mix was significantly smaller than that seen in group V. Forty-eight hours after ischemia, the neurological scores of rats from group Mix significantly improved when compared to group V. CONCLUSION Overall, our study showed that a combination of cyclosporin A and ondansetron may be a practical clinical method to treat brain infarction. However, further studies are required to investigate the cerebroprotective mechanism of action, the possible side effects of co-administration of these drugs, and the ability of these ligands to cross the blood brain barrier.
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Affiliation(s)
- Michihiro Murozono
- Department of Anesthesiology, Tokyo Medical University Ibaraki Medical Center Ibaraki, Japan
| | - Ryouichi Miyashita
- Department of Anesthesiology, Tokyo Medical University Ibaraki Medical Center Ibaraki, Japan
| | - Akiko Takeda
- Department of Anesthesiology, Tokyo Medical University Ibaraki Medical Center Ibaraki, Japan
| | - Kunio Ynagita
- Department of Intensive Care Medicine, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Eiichi Sato
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
| | - Yukihiko Ogiwara
- Department of Anesthesiology, Tokyo Medical University, Tokyo, Japan
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25
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Hamadani M, Chaudhary L, Awan FT, Khan JK, Kojouri K, Ozer H, Tfayli A. Management of platinum-based chemotherapy-induced acute nausea and vomiting: is there a superior serotonin receptor antagonist? J Oncol Pharm Pract 2016; 13:69-75. [PMID: 17873106 DOI: 10.1177/1078155207078137] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective. The last decade has witnessed the great impact of 5-hydroxytryptamine-3 receptor (5-HT3) antagonists in revolutionizing the management of platinum-based chemotherapy–induced acute nausea and vomiting (CINV). However, despite the availability of a variety of 5-HT3 antagonists, little data is published to support superiority of one drug over another, leaving the choice of serotonin receptor antagonist largely empirical. The National Comprehensive Cancer Network and American Society of Clinical Oncology guidelines for management of chemotherapy-associated nausea and vomiting clearly endorse the use of serotonin receptor antagonist; however, no single agent is preferred over the rest. Methods. Data for patients (n¼159) receiving platinum-based chemotherapy regimens were retrospectively collected. Patients getting 5-HT3 antagonists without steroids or those with known history of brain metastasis, gastroparesis, and intestinal obstruction were not eligible for the study. Patient characteristics including age, gender, primary diagnosis, history of heavy alcohol intake, chemotherapy regimen administered, number of cycles, and Eastern Cooperative Oncology Group performance status at the start of therapy were noted. Primary outcome was the complete control of platinum-induced acute nausea and vomiting. Secondary outcome measures included control of >grade 1 nausea or vomiting, comparison of two doses of dexamethasone, and antiemetic efficacy among various platinum drugs. National Cancer Institute Common Toxicity Criteria version 2.0 was used to assess toxicity. Results. A total of 126 patients received 369 cycles of platinum-based therapy. Dolasetron (n¼157), granisetron (n¼81), and ondansetron (n¼131) achieved complete control of vomiting in 89.8, 95.5, and 92.3% (p¼0.67) of cycles, respectively. Respectively, complete nausea control was observed in 68.1, 75.3 and, 69.4% (p¼0.50). Dexamethasone 20 mg was not superior to 10 mg in complete control of nausea and vomiting (p¼0.15 and p¼0.63, respectively). However, complete nausea control was significantly better in the subgroup of patients getting cisplatin-compared with carboplatin-based regimens (78.8% vs. 67.7%, p50.05). Conclusion. No significant difference exists in the antiemetic efficacy of the three 5-HT3 antagonists studied in controlling CINV when administered in combination with dexamethasone. Choice of antiemetic regimen should therefore be based on drug cost.
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Affiliation(s)
- Mehdi Hamadani
- Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43228, US.
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Nam Y, Lee JM, Wang Y, Ha HS, Sohn UD. The effect of Flos Lonicerae Japonicae extract on gastro-intestinal motility function. J Ethnopharmacol 2016; 179:280-290. [PMID: 26743226 DOI: 10.1016/j.jep.2015.12.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 12/23/2015] [Accepted: 12/29/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Flos Lonicerae Japonicae is a well-known herb of traditional Chinese medicine that has been used for heat-clearing, detoxification, anti-inflammation, throat pain and gastro-intestinal (GI) disorder. In order to verify the effect of Flos Lonicerae Japonicae on GI disorder, we investigated the prokinetic effect of GC-7101 on GI motility function. MATERIALS AND METHODS GC-7101 is the standardized extract of Flos Lonicerae Japonicae. The contractile action of GC-7101 on feline esophageal smooth muscle cell (ESMC) was evaluated by measuring dispersed cell length. The isometric tension study was performed to investigate the effect of GC-7101 on feline lower esophageal sphincther (LES). The prokinetic effect of GC-7101 was investigated by gastric emptying (GE) and gastro-intestinal transit (GIT) in rats. RESULTS GC-7101 produced concentration-dependent contractions in ESMCs. Pretreatment with 5-HT3 and 5-HT4 receptor blocker (ondansetron and GR113808) inhibited the contractile responses of the GC-7101-induced ESMCs. In isometric tension study, GC-7101 recovered the HCl-induced decreased tone of LES muscle strips. The treatment of GC-7101 enhanced the carbachol-induced contractile responses and the electric field stimulation (EFS)-induced on-contraction. The oral administration of GC-7101 not only significantly accelerated GE and GIT in normal rats but also recovered the delayed GE and GIT, and its effect was more potent than that of conventional prokinetics (e.g., domperidone, a dopamine-receptor antagonist, and mosapride, a 5-HT4-receptor agonist). CONCLUSION GC-7101 revealed a prokinetic effect through enhancing the contractile responses of ESMCs, tone increases, enhancing the carbarchol- or EFS-induced contractile responses of LES muscle strips, and the acceleration of GE and GIT. We have identified the significant potential of GC-7101 for the development of new prokinetic drugs through this study.
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Affiliation(s)
- Yoonjin Nam
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-784, Republic of Korea.
| | - Jong Mi Lee
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-784, Republic of Korea.
| | - Yiyi Wang
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-784, Republic of Korea.
| | - Hyun Su Ha
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-784, Republic of Korea.
| | - Uy Dong Sohn
- Department of Pharmacology, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-784, Republic of Korea.
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Afzal A, Khan BT, Bakhtiar S. Ondansetron: A newer aspect of dose response relationship on ileal smooth muscles of rabbit. Pak J Pharm Sci 2016; 29:119-124. [PMID: 26826825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
There are several life threatening deadly diseases in our world but ‘Cancer’ out powers them all in recent years. Chemotherapy may be used on its own or an adjunct to other forms of therapy. Despite the advancement in cytotoxic drug therapy and supportive treatment almost 70% of patient suffer from chemotherapy induced nausea and vomiting (CINV). Ondansetron, a 5-HT(3) receptor antagonist has now become a gold standard in the treatment of chemotherapy induced nausea and vomiting. The central actions of ondansetron are well established but its peripheral actions are not well recognized. The aim of our study was to explore the peripheral actions of ondansetron. Experiments were performed in five groups (n=6) and ileal smooth muscles activity was recorded on power lab (USA). The effects of increasing concentrations of acetylcholine, serotonin & ondansetron alone was observed in first three groups. In the next two groups effects of acetylcholine and serotonin pretreated with fixed concentration (1ml) of ondansetron (10¯ϖ M)were studied. The maximum response obtained by acetylcholine served as a control for our study. Maximum response with acetylcholine was taken as 100% and with serotonin was 177 percent of control. Cumulative dose response curve with ondansetron was triphasic. At 10¯ψM it was 28.8%, whereas with 10¯ξM the amplitude decreased to 16.87%, it reached to plateau at 10¯ϖ M. Response of acetylcholine & serotonin was decreased to 57% and 78% respectively in the presence of fixed concentration of ondansetron (10¯ϖ M). Ondansetron reduces the acetylcholine and serotonin induced gastrointestinal motility. Our study has indicated that ondansetron apart from having central action also has marked peripheral actions that play an important role in CINV and may act as a partial agonist.
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Affiliation(s)
- Ayesha Afzal
- Pharmacology Department, Wah Medical College, Wah Cantt, Pakistan
| | - Bushra Tayyaba Khan
- Department of Pharmacology, Army Medical College, Abid Majeed Road, Rawalpindi, Pakistan
| | - Salman Bakhtiar
- Department of Pharmacology, Army Medical College, Abid Majeed Road, Rawalpindi, Pakistan
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Agámez Medina GL, González-Arévalo A, Gómez-Arnau JI, García del Valle S, Rubio JA, Esteban E, Pérez E. Effects of droperidol and ondansetron on dispersion of ventricular repolarization: A randomized double-blind clinical study in anesthetized adult patients. Rev Esp Anestesiol Reanim 2015; 62:495-501. [PMID: 25887095 DOI: 10.1016/j.redar.2015.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 01/28/2015] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND AND OBJECTIVE Droperidol and ondansetron prolong QT interval, a circumstance that has raised some concerns regarding the possibility of inducing torsades de pointes (TdP). However drug-induced spatial dispersion of ventricular repolarization has been shown to be the principal arrhythmogenic substrate for TdP. The aim of this study is to explore the effects of droperidol and ondansetron on the dispersion of repolarization, measured using the T peak-to-end interval (Tp-e) and Tp-e/QT and Tp-e/RR(1/2) ratios in surgical anesthetized patients. METHODS A randomized, double-blind study carried out on sixty-three adult patients without cardiac disease or factors favoring QT prolongation and undergoing non-cardiac surgery were randomly assigned to the droperidol or ondansetron group. Under propofol anesthesia, a 12-lead EKG was obtained, and 1.25mg droperidol or 4mg ondansetron was injected. Five minutes later, a new 12-lead EKG was recorded. EKG analyses were independently performed by two cardiologists blinded to the state of the traces or group allocation. QT, RR and Tp-e intervals were measured by averaging five successive beats in leadII (QT) or V5 (Tp-e). The mean value for each measurement was calculated for statistical analysis. RESULTS Thirty-two patients (19 women) received droperidol, and 31 (22 women) ondansetron. Droperidol and ondansetron prolonged the QTcF interval (Fridericia formula) by 6.8 and 7.2ms (mean values) respectively, but neither droperidol nor ondansetron increased the Tp-e interval or Tp-e/QT and Tp-e/RR(1/2) ratios. CONCLUSION At antiemetic doses, neither ondansetron (4mg) nor droperidol (1.25mg) increases the dispersion of ventricular repolarization in healthy adult patients anesthetized with propofol.
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Affiliation(s)
- G L Agámez Medina
- Departamento de Anestesiología y Reanimación, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España.
| | - A González-Arévalo
- Departamento de Anestesiología y Reanimación, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España
| | - J I Gómez-Arnau
- Departamento de Anestesiología y Reanimación, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España
| | - S García del Valle
- Departamento de Anestesiología y Reanimación, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España
| | - J A Rubio
- Unidad de Cardiología, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España
| | - E Esteban
- Unidad de Cardiología, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España
| | - E Pérez
- Research Institute, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España
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Dranitsaris G, Mazzarello S, Smith S, Vandermeer L, Bouganim N, Clemons M. Measuring the impact of guideline-based antiemetic therapy on nausea and vomiting control in breast cancer patients with multiple risk factors. Support Care Cancer 2015; 24:1563-9. [PMID: 26381427 DOI: 10.1007/s00520-015-2944-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 09/08/2015] [Indexed: 02/07/2023]
Abstract
PURPOSE The objective of this exploratory analysis was to determine if individual patient risk factors could be used to optimize chemotherapy-induced nausea and vomiting (CINV). METHODS Through validated risk prediction models which quantify patient risk factors, 152 patients with early-stage breast cancer scheduled to received adjuvant anthracycline-based chemotherapy were categorized as being at low (level 0) or high-risk (level 1) for CINV. Prior to the first cycle of chemotherapy, low-risk patients received ondansetron and dexamethasone, while high-risk level 1 patients also received aprepitant. For subsequent cycles, patients who experienced CINV had their antiemetics changed in a stepwise manner to level 2 (extended-duration dexamethasone) or level 3 (extended-duration dexamethasone and low-dose olanzapine). RESULTS The study enrolled 152 patients who received 484 cycles of chemotherapy. Forty patient cycles were classified as low risk (level 0) compared to 201, 162 and 81 that were classified as high-risk levels 1, 2 and 3, respectively. Complete control of acute and delayed vomiting was comparable and was achieved in over 85 % of patients across all risk levels (p = 0.56 and p = 0.99). In contrast, complete control of acute and delayed nausea was reduced in risk levels 1 to 3 compared to level 0 (acute = 51.2, 58.0, 45.7 vs. 70.0 %; p = 0.013)-(delayed = 32.8, 45.7, 34.6 vs. 62.5 %; p < 0.001). CONCLUSIONS Despite the addition of aprepitant, extended-duration dexamethasone and olanzapine, patients at high risk for CINV due to personal risk factors failed to achieve good nausea control.
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Affiliation(s)
- George Dranitsaris
- The Ottawa Hospital Cancer Centre, Ottawa, Canada.
- , 283 Danforth Ave, Suite 448, Toronto, Ontario, M4K 1N2, Canada.
| | | | | | | | | | - Mark Clemons
- The Ottawa Hospital Cancer Centre, Ottawa, Canada
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Kim MS, Lee JR, Choi EM, Kim EH, Choi SH. Association of 5-HT3B Receptor Gene Polymorphisms with the Efficacy of Ondansetron for Postoperative Nausea and Vomiting. Yonsei Med J 2015; 56:1415-20. [PMID: 26256989 PMCID: PMC4541676 DOI: 10.3349/ymj.2015.56.5.1415] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 11/20/2014] [Accepted: 12/09/2014] [Indexed: 01/17/2023] Open
Abstract
PURPOSE Postoperative nausea and vomiting (PONV) is a common problem after general anesthesia. Although 5-hydroxytryptamine type 3 (5-HT3) receptor antagonists have significantly reduced PONV, over 35% of patients treated with ondansetron can experience PONV. In this study, we investigated whether the Y129S and -100_-102AAG deletion polymorphisms of the 5-HT3B receptor gene affect the efficacy of ondansetron in preventing PONV. MATERIALS AND METHODS Two hundred and forty-five adult patients who underwent laparoscopic cholecystectomy were enrolled. Ondansetron 0.1 mg/kg was intravenously administered 30 minutes before the end of surgery. Genomic DNA was prepared from blood samples using a nucleic acid isolation device. Both the Y129S variant and the -100_-102AAG deletion variant were screened for using a single base primer extension assay and a DNA direct sequencing method, respectively. The relationship between genetic polymorphisms and clinical outcomes of ondansetron treatment was investigated. RESULTS Among the 5-HT3B AAG deletion genotypes, the incidence of PONV was higher in patients with the homomutant than with other genotypes during the first 2 hours after surgery (p=0.02). There were no significant differences in the incidence of PONV among genotypes at 2-24 hours after surgery. In the Y129S variants of the 5-HT3B receptor gene, there were no significant differences in the incidence of PONV among genotypes during the first 2 hours and at 2-24 hours after surgery. CONCLUSION The response to ondansetron for PONV was significantly influenced by the -100_-102AAG deletion polymorphisms of the 5-HT3B gene. Thus, the -100_-102AAG deletion variants may be a pharmacogenetic predictor for responsiveness to ondansetron for PONV.
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Affiliation(s)
- Min-Soo Kim
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong-Rim Lee
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Eun-Mi Choi
- Department of Anesthesiology and Pain Medicine, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Eun Ho Kim
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Ho Choi
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea.
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Maehara T, Matsumoto K, Horiguchi K, Kondo M, Iino S, Horie S, Murata T, Tsubone H, Shimada S, Ozaki H, Hori M. Therapeutic action of 5-HT3 receptor antagonists targeting peritoneal macrophages in post-operative ileus. Br J Pharmacol 2015; 172:1136-47. [PMID: 25377620 PMCID: PMC4314201 DOI: 10.1111/bph.13006] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND PURPOSE Post-operative ileus (POI) is induced by intestinal inflammation. Here, we aimed to clarify the effects of 5-HT3 receptor antagonists against POI. EXPERIMENTAL APPROACH We administered three 5-HT3 receptor antagonists, ondansetron, tropisetron and palonosetron, to a mouse model of POI induced by surgical intestinal manipulation (IM). Immunohistochemistry, intestinal transit, inflammatory mediator mRNA expression and 5-HT content were measured. In some experiments, 5-HT3 A receptor null mice were used. KEY RESULTS Three 5-HT3 receptor antagonists reduced IM-induced infiltration of inflammatory CD68-positive macrophages and myeloperoxidase-stained neutrophils. Ondansetron exhibited no anti-inflammatory actions in 5-HT3 A receptor null mice. Ondansetron inhibited expression of the chemokine CCL2, IL-1β, IL-6, TNF-α and iNOS mRNAs up-regulated by IM, and also ameliorated the delayed gastrointestinal transit. Peritoneal macrophages, but not most infiltrating monocyte-derived macrophages, expressed 5-HT3 receptors. IM stimulation increased the 5-HT content of peritoneal lavage fluid, which up-regulated mRNA expression of proinflammatory cytokines in peritoneal macrophages. Immunohistochemical localization of 5-HT3 receptors suggests that ondansetron suppressed expression of these mRNAs in activated peritoneal macrophages, adhering to the serosal region of the inflamed intestinal wall. CONCLUSION AND IMPLICATIONS 5-HT3 receptor antagonists were anti-inflammatory, mainly targeting peritoneal macrophages expressing these receptors. They also restored the delayed gastrointestinal transit by IM. 5-HT3 receptor antagonists should be therapeutically useful agents against POI.
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Affiliation(s)
- Toko Maehara
- Department of Veterinary Pharmacology, University of TokyoTokyo, 113-8657, Japan
| | - Kenjiro Matsumoto
- Laboratory of Pharmacology, Faculty of Pharmaceutical Sciences, Josai International UniversityChiba, 283-8555, Japan
| | - Kazuhide Horiguchi
- Division of Anatomy and Neuroscience, Department of Morphological and Physiological Sciences, University of Fukui Faculty of Medical SciencesFukui, 910-1193, Japan
| | - Makoto Kondo
- Department of Neuroscience and Cell Biology, Osaka University Graduate School of MedicineOsaka, 565-0871, Japan
| | - Satoshi Iino
- Division of Anatomy and Neuroscience, Department of Morphological and Physiological Sciences, University of Fukui Faculty of Medical SciencesFukui, 910-1193, Japan
| | - Shunji Horie
- Laboratory of Pharmacology, Faculty of Pharmaceutical Sciences, Josai International UniversityChiba, 283-8555, Japan
| | - Takahisa Murata
- Department of Animal Radiology, University of TokyoTokyo, 113-8657, Japan
| | - Hirokazu Tsubone
- Research Center for Food Safety, Graduate School of Agriculture and Life Sciences, University of TokyoTokyo, 113-8657, Japan
| | - Shoichi Shimada
- Department of Neuroscience and Cell Biology, Osaka University Graduate School of MedicineOsaka, 565-0871, Japan
| | - Hiroshi Ozaki
- Department of Veterinary Pharmacology, University of TokyoTokyo, 113-8657, Japan
| | - Masatoshi Hori
- Department of Veterinary Pharmacology, University of TokyoTokyo, 113-8657, Japan
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Liu RR, Yang ZH, Yang YL, Liu ZT, Yue W. [Effect of Ju-Pi-Tang on Cisplatin-induced Emetic Model in Minks]. Zhong Yao Cai 2015; 38:339-343. [PMID: 26415413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To study the antiemetic effect of Ju-Pi-Tang from Jin Kui Yao Lue on cisplatin-induced emetic model in minks, and to observe the immunoexpression of peripheral and central c-fos and substance P. METHODS The minks were randomly divided into blank control group, Ju-Pi-Tang blank control group, model group, ondansetron group, aprepitant group, Ju-Pi-Tang (in high-, mid-, and low-dose) groups. Every group was administered with the antiemetic agent or distilled water on 24 h before cisplatin injection. The antiemetic effect of drugs was investigated in the emetic model of minks induced by cisplatin in 72 h observation. Immunohistochemistry was used to compare the differences of c-fos and substance P expression in the area postrema of brain and distal ileum tissues. RESULTS During observation period,compared with model group,the frequency cisplatin induced retching and vomiting was significantly reduced by Ju-Pi-Tang in high- and mid-dose groups, during the 0-24 h acute period, the number of retching of Ju-Pi-Tang in high-dose group was decreased more than aprepitant group, during the 24-72 h delayed period, the number of both retching and vomiting was decreased more than ondansetron group, after 72 h of cisplatin administration, compared with model group, the grey levels of c-fos and substance P expression in distal ileum and brain tissues of Ju-Pi-Tang groups were higher significantly. CONCLUSION Ju-Pi-Tang has a good effect against cisplatin-induced emesis in minks.
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Kurhe Y, Radhakrishnan M, Gupta D. Ondansetron attenuates depression co-morbid with obesity in obese mice subjected to chronic unpredictable mild stress; an approach using behavioral battery tests. Metab Brain Dis 2014; 29:701-10. [PMID: 24964970 DOI: 10.1007/s11011-014-9574-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 05/30/2014] [Indexed: 01/11/2023]
Abstract
The aim of the present work was to investigate the role of ondansetron on the high fat diet (HFD) induced obese mice for behavioral and biochemical alterations using chronic unpredictable mild stress (CUMS) model of depression. Animals were fed with high fat diet for 14 weeks and subjected to different stress procedures for 4 weeks. Treatment with ondansetron was started on day 15. After day 28 behavioral assays and biochemical estimations were performed. Behavioral paradigms viz. sucrose preference test, locomotor score, forced swim test (FST) and elevated plus maze (EPM), whereas biochemical parameters like plasma glucose, total cholesterol, triglycerides and total proteins were estimated. Results examines that in behavioral assays, ondansetron significantly (P < 0.05) increased sucrose consumption, reduced immobility time in FST, increased the percent entries and time in open arm in EPM. In biochemical assessments elevated plasma glucose, total cholesterol, triglycerides and total proteins were significantly (P < 0.05) reversed by ondansetron treatment in HFD obese animals subjected to CUMS. The study indicates that the obese mice subjected to CUMS exhibited severe depressive-like symptoms and ondansetron significantly reversed the behavioral and biochemical alterations. In the present study the plasma glucose level indicates that, it could be "altered glucose level" playing an important role in depression co-morbid with obesity. Ondansetron through allosteric modulation of serotonergic system elevates the serotonin level and thereby regulates the insulin secretion and hence, reversing the "altered glucose level", could be the possible antidepressive-like mechanism against depression co-morbid with obesity.
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Affiliation(s)
- Yeshwant Kurhe
- Department of Pharmacy, Birla Institute of Technology & Science, Pilani, Rajasthan, 333031, India,
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Li B, Wang L, Sun Z, Zhou Y, Shao D, Zhao J, Song Y, Lv J, Dong X, Liu C, Wang P, Zhang X, Cui R. The anticonvulsant effects of SR 57227 on pentylenetetrazole-induced seizure in mice. PLoS One 2014; 9:e93158. [PMID: 24690630 PMCID: PMC3972186 DOI: 10.1371/journal.pone.0093158] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Accepted: 02/28/2014] [Indexed: 01/13/2023] Open
Abstract
Recently, studies have shown that serotonin plays an important role in the control of seizure. However, the specific role of 5-HT receptor subtypes is not yet well described, in particular that of the 5-HT3 receptor. The present study was aimed to investigate the role of 5-HT3 receptor on the pentylenetetrazole (PTZ)-induced seizure in mice. Firstly, seizure latency was significantly prolonged by a 5-HT3 receptor agonist SR 57227 in a dose-dependent manner. Seizure score and mortality were also decreased by SR 57227 in PTZ-treated mice. Furthermore, these anticonvulsant effects of SR 57227 were inhibited by a 5-HT3 receptor antagonist ondansetron. However, ondansetron alone had no effect on seizure latency, seizure score or mortality at different doses. Immunohistochemical studies have also shown that c-Fos expression was significantly increased in hippocampus (dentate gyrus, CA1, CA3 and CA4) of PTZ-treated mice. Furthermore, c-Fos expression was significantly inhibited by ondansetron in mice treated with PTZ and SR 57227. An ELISA study showed that SR 57227 attenuated the PTZ-induced inhibitory effects of GABA levels in hippocampus and cortex, and the attenuated effects of SR 57227 were antagonized by ondansetron in hippocampus but not cortex. Our findings suggest that activation of 5-HT3 receptor by SR 57227, which plays an important role on the control of seizure induced by PTZ, may be related to GABA activity in hippocampus. Therefore, 5-HT3 receptor subtype is a potential target for the treatment of epilepsy.
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Affiliation(s)
- Bingjin Li
- Second hospital of Jilin University, Changchun, China
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
| | - Liang Wang
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
- * E-mail: (RC); (LW); (XZ)
| | - Zhihui Sun
- First hospital of Jilin University, Changchun, China
| | - Yang Zhou
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
| | - Dongyuan Shao
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
| | - Jing Zhao
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
| | - Yunong Song
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
| | - Jiayin Lv
- China-Japan Union Hospital, Changchun, China
| | - Xue Dong
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
| | - Changhong Liu
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
| | - Pu Wang
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
| | - Xingyi Zhang
- Second hospital of Jilin University, Changchun, China
- * E-mail: (RC); (LW); (XZ)
| | - Ranji Cui
- Second hospital of Jilin University, Changchun, China
- National Engineering Laboratory for Druggable Gene and Protein Screening Northeast Normal University, Changchun, China
- * E-mail: (RC); (LW); (XZ)
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Hur W, Lee MK, Park HP, Kim CS, Yoon HJ, Zuo Z, Do SH. Ondansetron attenuates the activity of excitatory amino acid transporter type 3 expressed in Xenopus oocytes. Eur J Pharmacol 2014; 733:7-12. [PMID: 24690261 DOI: 10.1016/j.ejphar.2014.03.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/07/2014] [Accepted: 03/20/2014] [Indexed: 12/26/2022]
Abstract
The purpose of this study was to evaluate the effect of ondansetron on excitatory amino acid transporter type 3 (EAAT3) and to elucidate the roles of protein kinase C (PKC) and phosphatidylinositol 3-kinase (PI3K) in the effect. EAAT3 was expressed in Xenopus oocytes following the injection of rat EAAT3 mRNAs. Using the two-electrode voltage clamping method, the inward currents induced by L-glutamate were measured for 1 min in the presence and absence of ondansetron (1-1000 μM). Different concentrations of L-glutamate (3-300 μM) were used to determine the kinetic characteristics of EAAT3. To identify the involvement of PKC and PI3K in the effect, oocytes were exposed to a PKC activator and to PKC inhibitors and PI3K inhibitors, and L-glutamate-induced currents were recorded. Ondansetron decreased EAAT3 activity in a dose-dependent manner. In a kinetic study, ondansetron (10 μM for 3 min) reduced Vmax, but not Km compared with the control group. The PKC activator abolished the ondansetron-induced decrease in EAAT3 activity. The PKC inhibitors (staurosporine and chelerythrine) and ondansetron had not additive or synergistic effects on EAAT3 activity. The PI3K inhibitors (wortmannin and LY294002) decreased the EAAT3 response, although there were no differences among the groups comprising ondansetron, PI3K inhibitors, and PI3K inhibitors plus ondansetron. Our results demonstrate that ondansetron attenuates EAAT3 activity and this effect seems to be mediated by PKC and PI3K.
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Affiliation(s)
- Wonseok Hur
- Department of Anesthesiology and Pain Medicine, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea; Department of Anesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Mi Kyoung Lee
- Department of Anesthesiology and Pain Medicine, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Hee-Pyeong Park
- Department of Anesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Chong-Sung Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hea-Jo Yoon
- Department of Anesthesiology and Pain Medicine, Cheil General Hospital, Kwandong University, Seoul, Republic of Korea
| | - Zhiyi Zuo
- Department of Anesthesiology, University of Virginia Health System, Charlottesville, VA, USA
| | - Sang-Hwan Do
- Department of Anesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Gyeonggi-do 463-707, Republic of Korea.
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Adinoff B, Devous MD, Williams MJ, Harris TS, Best SE, Dong H, Zielinski T. Differences in regional cerebral blood flow response to a 5HT3 antagonist in early- and late-onset cocaine-dependent subjects. Addict Biol 2014; 19:250-61. [PMID: 22458709 DOI: 10.1111/j.1369-1600.2012.00450.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
5-hydroxytryptamine 3 (5HT3) receptors are important modulators of mesostriatal dopaminergic transmission and have been implicated in the pathophysiology of cocaine reward, withdrawal and self-administration. In addition, the 5HT3 antagonist ondansetron is effective in treating early-onset, but not late-onset, alcohol-dependent subjects. To explore the role of 5HT3 receptor systems in cocaine addiction using functioning imaging, we administered ondansetron to 23 abstinent, treatment-seeking cocaine-addicted and 22 sex-, age- and race-matched healthy control participants. Differences between early- (first use before 20 years, n = 10) and late-onset (first use after 20 years, n = 10) cocaine-addicted subjects were also assessed. On two separate days, subjects were administered ondansetron (0.15 mg/kg intravenously over 15 minutes) or saline. Regional cerebral blood flow (rCBF) was measured following each infusion with single photon emission computed tomography. No significant rCBF differences between the cocaine-addicted and control participants were observed following ondansetron relative to saline. Early-onset subjects, however, showed increased (P < 0.001) right posterior parahippocampal rCBF following ondansetron. In contrast, late-onset subjects showed decreased rCBF following ondansetron in an overlapping region of the right parahippocampal/hippocampal gyrus. Early-onset subjects also displayed increased rCBF in the left anterior insula and subthalamic nucleus following ondansetron; late-onset subjects showed decreased rCBF in the right anterior insula. These findings suggest that the age of drug use onset is associated with serotonergic biosignatures in cocaine-addicted subjects. Further clarification of these alterations may guide targeted treatment with serotonergic medications similar to those successfully used in alcohol-dependent patients.
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Affiliation(s)
- Bryon Adinoff
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA VA North Texas Health Care System, Dallas, TX, USA Nuclear Medicine Center and Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, USA University of Texas School of Public Health, Dallas, TX, USA
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Moore CF, Lycas MD, Bond CW, Johnson BA, Lynch WJ. Acute and chronic administration of a low-dose combination of topiramate and ondansetron reduces ethanol's reinforcing effects in male alcohol preferring (P) rats. Exp Clin Psychopharmacol 2014; 22:35-42. [PMID: 24490709 PMCID: PMC4292872 DOI: 10.1037/a0035215] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Topiramate (a GABA/glutamate modulator) and ondansetron (a serotonin-3 antagonist) have shown promise as treatments for alcohol use disorders (AUDs), although efficacy is modest/variable for both medications. We recently showed in animal models of consumption and relapse that acute treatment with a combination of these medications was more efficacious than either alone. To determine whether the mechanism for its beneficial effects is through modulation of ethanol's reinforcing effects, we measured the effect of this combination in male alcohol preferring (P) rats (N = 22) responding for ethanol under a progressive-ratio (PR) schedule. Low doses, which either do not affect (ondansetron; 0.001 mg/kg) or only modestly affect (topiramate; 10 mg/kg) alcohol-related behaviors on their own, were selected in an attempt to maximize their combined efficacy while minimizing potential side effects. In addition to acute treatment (1 day), the effects of chronic administration (10 days) were examined in an attempt to model human treatment approaches. The effects of the combination were compared with the low dose of topiramate alone hypothesizing that the combination would be more efficacious than topiramate alone. Although both topiramate and the combination similarly reduced PR responding for ethanol following acute treatment and during the initial phase of chronic treatment (Days 1-5), after repeated administration (Days 6-10), only the combination produced a sustained reduction in ethanol-maintained responding. These results suggest an advantage of the combination over topiramate alone at producing a sustained reduction in ethanol's reinforcing effects following prolonged treatment, and lend further support for its use as a potential treatment for AUDs.
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Affiliation(s)
- Catherine F Moore
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA
| | - Matthew D Lycas
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA
| | - Colin W Bond
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA
| | - Bankole A Johnson
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA
| | - Wendy J Lynch
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA
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Demirhan A, Tekelioglu YU, Akkaya A, Ozlu T, Yildiz I, Bayir H, Kocoglu H, Duran B. Antiemetic effects of dexamethasone and ondansetron combination during cesarean sections under spinal anaesthesia. Afr Health Sci 2013; 13:475-82. [PMID: 24235952 DOI: 10.4314/ahs.v13i2.39] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Nausea and vomiting are frequently seen in patients undergoing cesarean section (CS) under regional anesthesia. We aimed to compare the antiemetic efficacy of ondansetron and dexamethasone combination with that of the use of each agent alone to decrease the incidence of post-delivery intraoperative nausea and vomiting (IONV) during CS under spinal anesthesia. OBJECTIVE To compare the antiemetic efficacy of ondansetron and dexamethasone combination with that of the single use of each agent to decrease the incidence of postdelivery IONV during CS under spinal anesthesia. METHODS A randomized, prospective, double blind study was performed on 90 patients undergoing planned CS under spinal anesthesia. Patients received 4mg ondansetron in Group O, 8mg dexamethasone in GroupD, 4mg ondansetron+8mg dexamethasone in Group OD intravenously within 1-2 minutes after the umbilical cord was clamped. Frequency of postdelivery IONV episodes was recorded. RESULTS A total of 86 eligible patients were included in the study. There were 29 patients in Group O, 29 patients in Group D and 28 patients in Group OD. There were no statistically significant difference between the groups in terms of baseline characteristics and intraoperative managements. Frequency of intraoperative nausea, retching and vomiting experiences were similar between the groups (p>0.05). CONCLUSION Single dose 4mg ondansetron, 8mg dexamethasone, or combined use of 8mg dexamethasone+4mg ondansetron, given intravenously is all effective agents for the control of postdelivery IONV. Combined use of dexamethasone and ondansetron for the same indication does not seem to increase the antiemetic efficacy.
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Affiliation(s)
- A Demirhan
- Department of Anesthesiology and Reanimation, Abant Izzet Baysal University Medical School, Bolu, Turkey
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Can AS, Erdal MS, Güngör S, Özsoy Y. Optimization and characterization of chitosan films for transdermal delivery of ondansetron. Molecules 2013; 18:5455-71. [PMID: 23666010 PMCID: PMC6270495 DOI: 10.3390/molecules18055455] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/02/2013] [Accepted: 05/06/2013] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to develop novel transdermal films of ondansetron HCl with high molecular weight chitosan as matrix polymer and 2-(2-ethoxy-ethoxy) ethanol (Transcutol®) as plasticizer. In this context, firstly the physicochemical properties of gels used to formulate transdermal films were characterized and, physicochemical properties and bioadhesiveness of the transdermal films prepared with chitosan gels were assessed. The impact of three different types of terpenes, namely limonene, nerolidol and eucalyptol on in vitro skin permeation of ondansetron from transdermal films were also examined. ATR-FTIR measurements were performed to investigate the effects of the chitosan film formulations on in vitro conformational order of stratum corneum intercellular lipids after 24 h permeation study. The results showed that the chitosan gels consisting of Transcutol® as plasticizer and terpenes as penetration enhancer may be used to prepare transdermal films of ondansetron due to the good mechanical properties and bioadhesiveness of the transdermal films. Eucalyptol (1%) showed higher permeation enhancer effect than the other terpenes and control. ATR-FTIR data confirmed that finding in which eucalyptol induced a blue shift in the both CH₂ asymmetric and symmetric absorbance peak positions indicating increased lipid fluidity of stratum corneum.
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Affiliation(s)
| | | | | | - Yıldız Özsoy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Istanbul 34116, Turkey; E-Mails: (A.S.C.); (M.S.E.); (S.G.)
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Chang EY, Chen X, Sandhu A, Li CY, Luo ZD. Spinal 5-HT3 receptors facilitate behavioural hypersensitivity induced by elevated calcium channel alpha-2-delta-1 protein. Eur J Pain 2013; 17:505-13. [PMID: 23065867 PMCID: PMC3548964 DOI: 10.1002/j.1532-2149.2012.00221.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2012] [Indexed: 12/31/2022]
Abstract
BACKGROUND Peripheral nerve injury induces up-regulation of the calcium channel alpha-2-delta-1 proteins in the dorsal root ganglia and dorsal spinal cord that correlates with neuropathic pain development. Similar behavioural hypersensitivity was also observed in injury-free transgenic (TG) mice over-expressing the alpha-2-delta-1 proteins in neuronal tissues. To investigate pathways regulating alpha-2-delta-1 protein-mediated behavioural hypersensitivity, we examined whether spinal serotonergic 5-HT3 receptors are involved similarly in the modulation of behavioural hypersensitivity induced by either peripheral nerve injury in a nerve injury model or neuronal alpha-2-delta-1 over-expression in the TG model. METHODS The effects of blocking behavioural hypersensitivity in these two models by intrathecal or systemic injections of 5-HT3 receptor antagonist, ondansetron, were compared. RESULTS Our data indicated that the TG mice displayed similar behavioural hypersensitivities to non-painful mechanical stimulation (tactile allodynia) and painful thermal stimulation (thermal hyperalgesia) as that observed in the nerve injury model. Interestingly, tactile allodynia and thermal hyperalgesia in both models can be blocked similarly by intrathecal, but not systemic, injection of ondansetron. CONCLUSIONS Our data suggest that spinal 5-HT3 receptors are likely to play a role in alpha-2-delta-1-mediated behavioural hypersensitivities through a descending serotonergic facilitation.
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Affiliation(s)
- E Y Chang
- Department of Anesthesiology & Perioperative Care School of Medicine, University of California, Irvine, USA
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Song MY, Ku SK, Kim HJ, Han JS. Low molecular weight fucoidan ameliorating the chronic cisplatin-induced delayed gastrointestinal motility in rats. Food Chem Toxicol 2012; 50:4468-78. [PMID: 23022014 DOI: 10.1016/j.fct.2012.09.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 09/14/2012] [Accepted: 09/16/2012] [Indexed: 12/16/2022]
Abstract
Delayed gastrointestinal (GI) motility is frequent adverse effect associated with chemotherapy due to oxidative stress, activation of 5-HT3 receptors or serotonin releases from enterochromaffin cells. Fucoidan, extracts from brown seaweeds, has been showed antioxidant related favorable pharmacological activities including digestive tract protective effects. Low molecular weight fucoidan (LMF) obtained by acid hydrolysis of high molecular weight fucoidan has been showed more favorable bioactivities. This study was conducted to determine whether or not LMF can prevent delayed GI motility induced by the antineoplastic drug cisplatin chronically administered, once per week for five consecutive weeks. LMF ameliorating the chronic cisplatin treatment related body weight decreases, delayed GI motility, and enhanced the antioxidant defense systems. In addition, LMF also inhibited the cisplatin treatment related GI gastrin and serotonin changes, including enzyme activities involved in serotonin metabolism and enterochromaffin cells. The overall effects of LMF 10mg/kg were similar to that of ondansetron 1mg/kg, a serotonin 5-HT3 receptor antagonist. The present results supported that LMF have favorable ameliorating effect on the delayed GI motility induced by chemotherapy, modulated the GI enterochromaffin cells, serotonin and gastrin-producing cells with antioxidant effects. This effect of LMF may help improve accompanying digestive disorders by chemotherapy.
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Affiliation(s)
- Moon Yong Song
- Korea Conformity Laboratories, Seoul 153-803, Republic of Korea
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Prada J, Shalapour S, Pfau M, Henze G, Seeger K. The serotonin receptor-antagonist ondansetron induces significant increases in the expression of interferon-gamma which correlate with antiproliferative properties in the acute lymphoblastic leukaemia cell line REH. Scand J Immunol 2012; 76:519-20. [PMID: 22924677 DOI: 10.1111/j.1365-3083.2012.02770.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Abstract
BACKGROUND Lumenal glucose initiates changes in gastrointestinal (GI) function, including inhibition of gastric emptying, stimulation of pancreatic exocrine and endocrine secretion, and intestinal fluid secretion. Glucose stimulates the release of GI hormones and 5-hydroxytryptamine (5-HT), and activates intrinsic and extrinsic neuronal pathways to initiate changes in GI function. The precise mechanisms involved in luminal glucose-sensing are not clear; studying gut endocrine cells is difficult due to their sparse and irregular localization within the epithelium. METHODS Here we show a technique to determine activation of gut epithelial cells and the gut-brain pathway in vivo in rats using immunohistochemical detection of the activated, phosphorylated, form of calcium-calmodulin kinase II (pCaMKII). KEY RESULTS Perfusion of the gut with glucose (60 mg) increased pCaMKII immunoreactivity in 5-HT-expressing enterochromaffin (EC) cells, cytokeratin-18 immunopositive brush cells, but not in enterocytes or cholecystokinin-expressing cells. Lumenal glucose increased pCaMKII in neurons in the myenteric plexus and nodose ganglion, nucleus of the solitary tract, dorsal motor nucleus of the vagus and the arcuate nucleus. pCaMKII expression in neurons, but not in EC cells, was significantly attenuated by pretreatment with the 5-HT(3) R antagonist ondansetron. Deoxynojirimycin, a selective agonist for the putative glucose sensor, sodium-glucose cotransporter-3 (SGLT-3), mimicked the effects of glucose with increased pCaMKII in ECs and neurons; galactose had no effect. CONCLUSIONS & INFERENCES The data suggest that native EC cells in situ respond to glucose, possibly via SGLT-3, to activate intrinsic and extrinsic neurons and thereby regulate GI function.
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Affiliation(s)
- K M Vincent
- Department of Anatomy, Physiology, and Cell Biology, University of California Davis School of Veterinary Medicine, Davis, CA 95616, USA
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Fregoneze JB, Oliveira EF, Ribeiro VF, Ferreira HS, De Castro E Silva E. Multiple opioid receptors mediate the hypotensive response induced by central 5-HT(3) receptor stimulation. Neuropeptides 2011; 45:219-27. [PMID: 21514668 DOI: 10.1016/j.npep.2011.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2010] [Revised: 03/14/2011] [Accepted: 03/29/2011] [Indexed: 02/06/2023]
Abstract
The aim of the present work was to investigate the role of brain μ, κ and δ opioid receptors in the central serotonergic mechanisms regulating blood pressure in rats. The data obtained show that: (1) pharmacological activation of central 5-HT(3) receptors yields a significant decrease in blood pressure; (2) the blockade of those receptors by a selective antagonist induces an acute hypertensive response; (3) the pharmacological blockade of central opioid receptors by three different opioid antagonists exhibiting variable degrees of selectivity to μ, κ and δ opioid receptors always suppressed the hypotensive response induced by central 5-HT(3) receptor stimulation; (4) the blockade of opioid receptors by the same opioid antagonists that impaired the hypotensive effect of central 5-HT(3) receptor stimulation failed to modify blood pressure in animals not submitted to pharmacological manipulations of central 5-HT(3) receptor function. It is shown that a 5-HT(3) receptor-dependent mechanism seems to be part of the brain serotonergic system that contributes to cardiovascular regulation since the hypertensive response observed after ondansetron administration indicates that central 5-HT(3) receptors exert a tonic inhibitory drive on blood pressure. Furthermore, the data obtained here clearly indicate that the hypotensive response observed after pharmacological stimulation of central 5-HT(3) receptors depends on the functional integrity of brain μ, κ and δ opioid receptors, suggesting that a functional interaction between serotonergic and opiatergic pathways in the brain is part of the complex, multifactorial system that regulates blood pressure in the central nervous system.
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Affiliation(s)
- J B Fregoneze
- Department of Physiology, Health Sciences Institute, Federal University of Bahia, Salvador, Brazil.
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Prada J, Shalapour S, Pfau M, Henze G, Seeger K. Antiproliferative effect of the serotonin receptor antagonist ondansetron in the acute lymphoblastic leukemia cell line REH. Acta Oncol 2011; 50:591-2. [PMID: 21091402 DOI: 10.3109/0284186x.2010.537691] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Debnath S, Biswas D, Ray K, Guha D. Moringa oleifera induced potentiation of serotonin release by 5-HT(3) receptors in experimental ulcer model. Phytomedicine 2011; 18:91-95. [PMID: 20637582 DOI: 10.1016/j.phymed.2010.06.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2010] [Revised: 04/20/2010] [Accepted: 06/01/2010] [Indexed: 05/29/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE moringa oleifera (Moringaceae), a perennial plant is widely cultivated throughout the world. Extensive pharmacological studies revealed its promising role in modulation of various disorders like antispasmodic, diuretic, abortifacient, antimicrobial antibacterial, antitubercular, antiviral, antifertility, depressant, anti-inflammatory and anticancer property which promoted us to conduct the study to elucidate its role on experimental gastric ulceration. AIM OF THE STUDY the aim of the present study was to assess the efficacy of its aqueous leaf extract on protection of gastric ulceration and characterize the possible modulatory mechanism underlying the phenomenon. MATERIALS AND METHODS adult Holtzman strain albino rats (weight 150-200 g) of either sex were used for the study. Ulceration was induced using aspirin (500 mg/kg body weight) and using Moringa oleifera (MO), a herbal formulation, the modulatory mechanism has been studied and compared with a commonly used antagonist of 5-HT(3) receptors, ondansetron by assessing parameters like mean ulcer index, 5-HT content, EC cell count and mucosal thickness. RESULTS the results of our study suggest that MO protects ulcer formation by modulating 5-HT secretion through EC cell via 5-HT(3) receptors in gastrointestinal tract. INTERPRETATION AND CONCLUSION MO showed maximum protective activity at a dose of 300 mg/kg body weight against above-mentioned experimental rat ulcer model by modulating 5-HT secretion through EC cell via 5-HT(3) receptors in gastrointestinal tract which has given a glimpse of a therapeutic approach for gastric ulcer management, which may be beneficially used in contrast to the classical antacid, antihistamine or surgical treatment. Further investigations and proper screening regarding various phytochemicals, alkaloids present within MO leaf will help to formulate effective herbal preparation that will be used to combat gastrointestinal disorders in future.
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Affiliation(s)
- Siddhartha Debnath
- S. N. Pradhan Centre for Neurosciences, University of Calcutta, 244B A.J.C. Bose Road, Kolkata 700020, India. siddhartha
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Omar SH, Kamel NM, Radwan KG, Ebied RS, Ali MZ, Osman ES, Kamel HH. Sub-antibiotic doses of erythromycin as a prokinetic in abdominal surgeries: reviving the old. J Egypt Soc Parasitol 2010; 40:809-820. [PMID: 21268547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
All patients undergoing major abdominal procedures have some degree of gastricatony in the immediate postoperative period, presenting mainly with vomiting. Many prokinetic agents have been used in the past, but none is a universal remedy. Studies showed that subantibiotic doses of erythromycin, a macrolide antibiotic and motilin agonist, accelerates gastric emptying. This study investigated whether preoperative subantibiotic dose oral erythromycin (250 mg), altered residual gastric volume and postoperative adverse effects in patients scheduled for abdominal surgeries. Erythromycin was compared with the commonly used prokinetic metoclopramide and antiemetic ondansetron, in terms of prokinetic efficacy, cost and adverse effects. In a double-blind study, eighty patients (20 each) were allocated randomly to receive orally, either erythromycin 250 mg (E250) or erythromycin 500 mg (E500), or 10 mg metoclopramide (M), or 4 mg ondansetron (Z), an hour pre-induction of anesthesia. Preoperative oral erythromycin in subantibiotic dose 250 mg elicited a significntly lower residual gastric volume (P < 0.001) and a lower VAS for vomiting, compared with ondansetron. As for metoclopramide and erythromycin 500, residual gastric volume was comparable, but E 250 had a lower VAS for vomiting than both groups. Rescue remedy for vomiting was required for groups E500, M and Z (100, 10 and 10%) compared to 0% in group E250. Ultimately, subantibiotic oral dose of erythromycin (250 mg), given 1 hr preoperatively, is an inexpensive prokinetic alternative with a promising post-operative profile which may be superior to the inexpensive prokinetic metoclopramide with known adverse effects, and the expensive antiemetic ondansetron.
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Affiliation(s)
- Sohaila H Omar
- Department of Anesthesia, Theodor Bilharz Research Institute, Embaba 30, Giza, Egypt
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Coiro V, Maffei ML, Volta E, Cataldo S, Minelli R, Vacca P, Volpi R, Chiodera P. Effect of serotonergic system on AVP secretion induced by physical exercise. Neuropeptides 2010; 44:53-6. [PMID: 19914713 DOI: 10.1016/j.npep.2009.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Revised: 09/10/2009] [Accepted: 10/15/2009] [Indexed: 10/20/2022]
Abstract
The present study was undertaken in order to establish the possible involvement of serotonergic receptors in the control of physical exercise-stimulated vasopressin secretion. Twenty-one healthy men (divided in three groups of seven) underwent bicycle-ergometer tests until exhaustion: exercise control test (n=21), exercise plus ondansetron, selective 5-HT3 antagonist (n=7), exercise plus buspirone, selective 5-HT1A receptor agonist (n=7), exercise plus sumatriptan, selective 5-HT1D receptor agonist (n=7). AVP levels, physiological and biochemical variables were measured and compared during tests. Results showed that exercise-induced AVP rise did not change after the administration of buspirone and sumatriptan. In contrast, the administration of ondansetron significantly reduced physical exercise-induced AVP rise. Mean peak levels during physical exercise were 4.9 times higher than basal values in the control test and 2.6 times higher than basal values in the ondansetron plus exercise test. These data demonstrate that 5-HT3 serotonergic receptors at least partially mediate the AVP response to physical exercise. On the other hand, 5-HT1A and 5-HT1D serotonergic receptors do not appear to be involved in the control of AVP secretion during exercise.
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Affiliation(s)
- V Coiro
- Department of Internal Medicine and Biochemical Sciences, University of Parma, Parma, Italy.
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Limebeer CL, Litt DE, Parker LA. Effect of 5-HT3 antagonists and a 5-HT(1A) agonist on fluoxetine-induced conditioned gaping reactions in rats. Psychopharmacology (Berl) 2009; 203:763-70. [PMID: 19082581 DOI: 10.1007/s00213-008-1421-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2008] [Accepted: 11/20/2008] [Indexed: 11/26/2022]
Abstract
RATIONALE The effect of manipulation of the serotonin (5-HT) system on conditioned gaping (presumably reflective of nausea in rats) was evaluated. OBJECTIVE The potential of the selective serotonin reuptake inhibitor (SSRI), fluoxetine (which produces nausea in the clinic), to produce conditioned gaping in rats and of the 5-HT(3) antagonists (ondansetron and palonosetron) and the 5-HT(1A) autoreceptor agonist (8-OH-DPAT) to reverse this effect were evaluated. MATERIALS AND METHODS In each of four experiments, rats received three pairings of intraorally delivered 17% sucrose solution and fluoxetine (0, 2, 10 or 20 mg/kg) and 72 h later were given a drug-free test trial. In experiment 2, rats were pretreated with the 5-HT(3) antagonists, ondansetron (0, 0.1 or 1.0 mg/kg) or the longer acting palonosetron (0.1 mg/kg), 30 min before each of three sucrose-fluoxetine (20 mg/kg) pairings. In experiment 3, rats were injected with palonosetron (0.1 mg/kg) 2 h before each of three sucrose-fluoxetine (20 mg/kg) or sucrose-lithium chloride (LiCl, 25 mg/kg) pairings. In experiment 4, rats were pretreated with the 5-HT(1A) autoreceptor agonist, 8-OH-DPAT (DPAT, 0.1 mg/kg) 30 min before each of three sucrose-fluoxetine (20 mg/kg) pairings. RESULTS After two sucrose-fluoxetine pairings, the highest dose of fluoxetine tested (20 mg/kg) produced conditioned gaping reactions. These conditioned gaping reactions were prevented by pretreatment with DPAT, but not with the 5-HT(3) antagonists. On the other hand, palonosetron administered 2 h prior to sucrose-LiCl pairings attenuated conditioned gaping reactions. CONCLUSIONS These results suggest that the conditioned nausea produced by SSRIs, but not LiCl, may be resistant to treatment with 5-HT(3) antagonists, but not 5-HT(1A) autoreceptor agonists.
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Affiliation(s)
- Cheryl L Limebeer
- Department of Psychology, University of Guelph, Guelph, Ontario, Canada, N1H 2W1
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Zarzana EC, Basso AS, Costa-Pinto FA, Palermo-Neto J. Pharmacological manipulation of immune-induced food aversion in rats. Neuroimmunomodulation 2009; 16:19-27. [PMID: 19077442 DOI: 10.1159/000179663] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Accepted: 06/06/2008] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Mice allergic to ovalbumin (OVA) avoid drinking a solution containing this antigen. This was interpreted as related to IgE-dependent mast cell degranulation and sensory C fiber activation. METHODS We employed pharmacological manipulation to further investigate the mediators involved in immune-induced food aversion. RESULTS While nonimmunized rats preferred a sweetened OVA solution, immunized rats avoided it. We also employed a paradigm in which rats are conditioned to drink water for two 10-min sessions a day. Tolerant rats presented lower IgE titers, and this manipulation abrogated food aversion. Dexamethasone (1.0 mg/kg) prevented the aversion of OVA-immunized rats to the antigen-containing solution. Combined blockade of H(1) and 5-hydroxytryptamine (5-HT)(2) receptors by promethazine (3.0 mg/kg) plus methysergide (5.0 mg/kg) was unable to alter food aversion. Blockade of 5-HT(3) receptors by ondansetron (1.0 mg/kg) caused a twofold increase in the ingestion of the sweetened OVA solution by immunized rats, suggesting the involvement of 5-HT(3) receptors in food aversion. Finally, we showed that dexamethasone or promethazine plus methysergide, but not ondansetron, effectively prevented the IgE-dependent mast-cell-degranulation-induced increase in vascular permeability in rats. CONCLUSION We suggest that regardless of whether or not they cause edema, IgE-mediated mast cell degranulation and consequent 5-HT(3) signaling are involved in the process that triggers avoidance to the source of the allergen in allergic rats.
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Affiliation(s)
- Eduardo C Zarzana
- Laboratory of Pharmacology and Toxicology, Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
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