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Marzok M, Kandeel M, Alkhodair K, Abdel-Raheem S, Ismail H, Farag A, Ibrahim H, El-Ashkar M, Shousha S, El-Khodery S. Evaluation of cardiac indices using M-mode echocardiography after administration of metoclopramide and ondansetron in donkeys ( Equus asinus): an experimental study. Front Vet Sci 2023; 10:1189710. [PMID: 37680391 PMCID: PMC10480612 DOI: 10.3389/fvets.2023.1189710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 08/01/2023] [Indexed: 09/01/2023] Open
Abstract
The aim of the present study was to evaluate cardiac indices using M-mode echocardiography after the administration of metoclopramide and ondansetron in donkeys. For this purpose, 10 apparently healthy Egyptian Baladi donkeys (Equus asinus) were used in a crossover prospective study. Two trials were conducted with the administration of metoclopramide hydrochloride anhydrous at a dose of 0.25 mg Kg-1 and ondansetron hydrochloride sodium at a dose of 0.15 mg Kg-1. The control group (placebo) received a total volume of 50 mL of isotonic saline at 0.9%. An echocardiographic examination was performed using a Digital Color Doppler Ultrasound System equipped with a 2-3.9 MHz phased array sector scanner transducer. In general, the fractional shortening (FS%) was significantly affected by the time for metoclopramide (p = 0.031) and ondansetron (p = 0.047) compared with those of placebo, with treatment with metoclopramide provoking significantly higher percentages of FS% at T60 (p = 0.009) and T90 (p = 0.028) compared with those for ondansetron and placebo. The interaction of time x treatment also showed a statistically significant alteration of FS% (p < 0.05), while the values returned to the basal line at T240. Metoclopramide induced a significant decrease in E-point to septal separation (EPSS) at T90 (p = 0.005), and T240 (p = 0.007) compared with ondansetron and placebo. The time x treatment interaction also showed a significant (p < 0.05) variation in EPSS, with values returning to the basal line at T300. Mitral valve opening velocity (DE SLP) values were significantly affected by time (p = 0.004) in the metoclopramide group compared with those of ondansetron and placebo. Administration of metoclopramide and ondansetron provoked significant alterations of DE SLP at T60 (p = 0.039), T120 (p = 0.036), and T300 (p = 0.005) compared with placebo. In conclusion, caution should be exercised when administering both treatments, especially to animals with suspected cardiac problems.
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Affiliation(s)
- Mohamed Marzok
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Faculty of Veterinary Medicine, Department of Surgery, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Faculty of Veterinary Medicine, Department of Pharmacology, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Khaled Alkhodair
- Department of Anatomy, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Sherief Abdel-Raheem
- Department of Public Health, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Faculty of Veterinary Medicine, Department of Animal Nutrition and Clinical Nutrition, Assiut University, Assiut, Egypt
| | - Hisham Ismail
- Faculty of Veterinary Medicine, Department of Animal Nutrition and Clinical Nutrition, Assiut University, Assiut, Egypt
- Faculty of Veterinary Medicine, Department of Food Hygiene "Meat Hygiene", Assiut University, Assiut, Egypt
| | - Alshimaa Farag
- Faculty of Veterinary Medicine, Department of Internal Medicine, Infectious Diseases and Fish Diseases, Mansoura University, Manosura, Egypt
| | - Hossam Ibrahim
- Faculty of Veterinary Medicine, Department of Internal Medicine, Infectious Diseases and Fish Diseases, Mansoura University, Manosura, Egypt
| | - Maged El-Ashkar
- Faculty of Veterinary Medicine, Department of Internal Medicine, Infectious Diseases and Fish Diseases, Mansoura University, Manosura, Egypt
| | - Saad Shousha
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Faculty of Veterinary Medicine, Department of Physiology, Benha University, Benha, Egypt
| | - Sabry El-Khodery
- Faculty of Veterinary Medicine, Department of Internal Medicine, Infectious Diseases and Fish Diseases, Mansoura University, Manosura, Egypt
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OKAMURA K, SASAKI N, FUKUNAKA M, YAMADA H, INOKUMA H. Pharmacokinetics of the Gastroprokinetic Agent Mosapride Citrate after Single Oral Administration in Horses. J Vet Med Sci 2010; 72:1023-6. [DOI: 10.1292/jvms.09-0321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Koichi OKAMURA
- The United Graduate School of Veterinary Sciences, Gifu University
- Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
| | - Naoki SASAKI
- Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
| | - Morito FUKUNAKA
- Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
| | - Haruo YAMADA
- Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
| | - Hisashi INOKUMA
- Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
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Lillich JD, Rakestraw PC, Roussel AJ, Finley MR, Ganta S, Freeman LC. Expression of the ether-a-go-go (ERG) potassium channel in smooth muscle of the equine gastrointestinal tract and influence on activity of jejunal smooth muscle. Am J Vet Res 2003; 64:267-72. [PMID: 12661864 DOI: 10.2460/ajvr.2003.64.267] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether ether-a-go-go (ERG) potassium channels are expressed in equine gastrointestinal smooth muscle, whether ERG channel antagonists affect jejunal muscle contraction in vitro, and whether plasma cisapride concentrations in horses administered treatment for postoperative ileus (POI) are consistent with ERG channels as drug targets. SAMPLE POPULATION Samples of intestinal smooth muscle obtained from 8 horses free of gastrointestinal tract disease and plasma samples obtained from 3 horses administered cisapride for treatment of POI. PROCEDURE Membranes were prepared from the seromuscular layer of the duodenum, jejunum, ileum, cecum, large colon, and small colon. Immunoblotting was used to identify the ERG channel protein. Isolated jejunal muscle strips were used for isometric stress response to ERG channel blockers that included E-4031, MK-499, clofilium, and cisapride. Plasma concentrations of cisapride were determined in 3 horses administered cisapride for treatment of POI after small intestinal surgery. RESULTS Immunoblotting identified ERG protein in all analyzed segments of the intestinal tract in all horses. The selective ERG antagonist E-4031 caused a concentration-dependent increase in jejunal contraction. Clofilium, MK-499, and cisapride also increased jejunal contraction at concentrations consistent with ERG channel block; effects of E-4031 and cisapride were not additive. Peak plasma cisapride concentrations in treated horses were consistent with ERG block as a mechanism of drug action. CONCLUSIONS AND CLINICAL RELEVANCE The ERG potassium channels modulate motility of intestinal muscles in horses and may be a target for drugs. This finding may influence development of new prokinetic agents and impact treatment of horses with POI.
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Affiliation(s)
- James D Lillich
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506-5606, USA
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