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MacNicol JL, Murrant C, Pearson W. The influence of a simulated digest of an equine dietary feed additive G's formula on contractile activity of gastric smooth muscle in vitro. J Anim Physiol Anim Nutr (Berl) 2020; 104:1919-1926. [DOI: 10.1111/jpn.13325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/05/2019] [Accepted: 01/16/2020] [Indexed: 12/11/2022]
Affiliation(s)
| | - Coral Murrant
- Department of Human Health and Nutritional Sciences University of Guelph Guelph ON Canada
| | - Wendy Pearson
- Department of Animal Biosciences University of Guelph Guelph ON Canada
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2
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Cappelli K, Gialletti R, Tesei B, Bassotti G, Fettucciari K, Capomaccio S, Bonfili L, Cuccioloni M, Eleuteri AM, Spaterna A, Laus F. Guanylin, Uroguanylin and Guanylate Cyclase-C Are Expressed in the Gastrointestinal Tract of Horses. Front Physiol 2019; 10:1237. [PMID: 31611814 PMCID: PMC6776823 DOI: 10.3389/fphys.2019.01237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 09/09/2019] [Indexed: 12/12/2022] Open
Abstract
Guanylate cyclase-C (GC-C) is a multifunctional receptor encoded by the GUCY2C gene, representing an attractive target for therapy in several gastrointestinal diseases in humans. Little is known about this system in horses. We investigated for the first time the gene expression of guanylin, uroguanylin and GC-C receptors in different horse’s gastrointestinal tracts. Tissue samples from stomach, duodenum, jejunum, ileum, head and body of cecum, left and right dorsal colon, left and right ventral colon, pelvic flexure, transverse colon, descending colon and rectum were collected from adult horses within 1 h post mortem. For each sample, total RNA was extracted from 100 mg of ground tissue, and qRT-PCR performed on GUCA2a, GUCA2b and GUCY2 transcripts on a CFX96 Touch instrument. Data analysis was carried out with Bio-Rad CFX Manager software, and genes of interest normalized relative to the abundance of the two reference genes (SDHA, HPRT). Additionally, the protein expression levels of GC-C receptor were analyzed through western blotting. A common pattern of expression throughout the gastrointestinal lumen for all three investigated transcripts was found. The expression of GUCA2a, GUCA2b and GUCY2 genes was higher in jejunum, ileum, descending colon and rectum. The levels of expression of GC-C protein confirmed these data. The findings of this study might open new scenarios for the therapeutic approach to enteric diseases of horse using selective agonists of GC-C.
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Affiliation(s)
- Katia Cappelli
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Rodolfo Gialletti
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Beniamino Tesei
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Gabrio Bassotti
- Department of Medicine, School of Medicine, University of Perugia, Perugia, Italy
| | - Katia Fettucciari
- Department of Experimental Medicine, School of Medicine, University of Perugia, Perugia, Italy
| | - Stefano Capomaccio
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Laura Bonfili
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | | | - Anna Maria Eleuteri
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Andrea Spaterna
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Fulvio Laus
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
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Laus F, Fratini M, Paggi E, Faillace V, Spaterna A, Tesei B, Fettucciari K, Bassotti G. Effects of Single-Dose Prucalopride on Intestinal Hypomotility in Horses: Preliminary Observations. Sci Rep 2017; 7:41526. [PMID: 28128322 PMCID: PMC5269739 DOI: 10.1038/srep41526] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/21/2016] [Indexed: 11/08/2022] Open
Abstract
Abnormalities of gastrointestinal motility are often a challenge in horses; however, the use of prokinetic drugs in such conditions must be firmly established yet. For this reason we carried out a preliminary study on the effects of prucalopride on intestinal motor activity of horses with gut hypomotility. The effect of prucalopride per os by oral dose syringe (2 mg/100 kg body weight) was assessed by abdominal ultrasound (evaluating duodenal, cecal, and colonic motor activity) in six horses with gut hypomotility. After administration of prucalopride, a significant increase of contractile activity was found in the duodenum at 30 minutes (p = 0.0005), 60 minutes (p = 0.01) and 90 minutes (p = 0.01), whereas in the cecum and in the left colon the increase was only present at 60 minutes (p = 0.03, and p = 0.02, respectively). No changes from baseline heart and respiratory rate or behavior side effects were observed after administration of the drug and throughout the observation period. Prucalopride may be a useful adjunct to the therapeutic armamentary for treating hypomotile upper gut conditions of horses. Dosing information is however needed to establish its actual clinical efficacy and its proper effects on the large bowel in these animals.
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Affiliation(s)
- Fulvio Laus
- School of Bioscences and Veterinary Medicine, University of Camerino, Via Circonvallazione 63/95, 62024 Matelica, Italy
| | - Margherita Fratini
- School of Bioscences and Veterinary Medicine, University of Camerino, Via Circonvallazione 63/95, 62024 Matelica, Italy
| | - Emanuele Paggi
- School of Bioscences and Veterinary Medicine, University of Camerino, Via Circonvallazione 63/95, 62024 Matelica, Italy
| | - Vanessa Faillace
- School of Bioscences and Veterinary Medicine, University of Camerino, Via Circonvallazione 63/95, 62024 Matelica, Italy
| | - Andrea Spaterna
- School of Bioscences and Veterinary Medicine, University of Camerino, Via Circonvallazione 63/95, 62024 Matelica, Italy
| | - Beniamino Tesei
- School of Bioscences and Veterinary Medicine, University of Camerino, Via Circonvallazione 63/95, 62024 Matelica, Italy
| | - Katia Fettucciari
- Department of Experimental Medicine, Perugia University School of Medicine, Piazzale Lucio Severi, 1, 06159 San Sisto (Perugia), Italy
| | - Gabrio Bassotti
- Department of Medicine, Perugia University School of Medicine, Piazzale Lucio Severi, 1, 06159 San Sisto (Perugia), Italy
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Hudson NPH, Pirie RS. Equine post operative ileus: A review of current thinking on pathophysiology and management. EQUINE VET EDUC 2014. [DOI: 10.1111/eve.12248] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- N. P. H. Hudson
- Royal (Dick) School of Veterinary Studies and Roslin Institute; University of Edinburgh; Easter Bush Campus Roslin Midlothian UK
| | - R. S. Pirie
- Royal (Dick) School of Veterinary Studies and Roslin Institute; University of Edinburgh; Easter Bush Campus Roslin Midlothian UK
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