Rosa Elvira Nuñez-Anita, Fernando Calderón-Rico, Francisco Pérez-Duran, María Concepción Arenas-Arrocena, Alicia Gabriela Zamora-Avilés, Luis Enrique Franco-Correa, Alejandro Bravo-Patiño, Ilane Hernández-Morales
{"title":"Response of lymphocytes from pigs naturally infected with porcine respiratory disease complex at 3 different stages of development.","authors":"Rosa Elvira Nuñez-Anita, Fernando Calderón-Rico, Francisco Pérez-Duran, María Concepción Arenas-Arrocena, Alicia Gabriela Zamora-Avilés, Luis Enrique Franco-Correa, Alejandro Bravo-Patiño, Ilane Hernández-Morales","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The objective of this study was to analyze the response of lymphocytes from pigs naturally infected with porcine respiratory disease complex (PRDC) at 3 different stages of development. Porcine respiratory disease complexes were isolated from 2 groups: The infected group, consisting of pigs with PRDC and no vaccination against any virus (<i>n</i> = 24), and the control group, consisting of vaccinated and noninfected piglets (<i>n</i> = 24). Both groups were sampled at 3 stages of development: Weaning (WEA) (<i>n</i> = 8), initiation (INI) (<i>n</i> = 8), and growth (GRO) (<i>n</i> = 8). The PRDC status was confirmed by serological testing against porcine circovirus type 2 (PCV-2), porcine reproductive and respiratory syndrome virus (PRRSV), swine influenza virus (H1N1), and <i>Mycoplasma hyopneumoniae</i>. PCV-2+ cells were quantified by flow cytometry. Weight gain was registered at each stage. PCV-2+ cells, CD4+ cells, monocytes and lymphocytes populations were measured. Gene expression in CD4+ cells was quantified for interferon-γ (IFN-γ), GATA binding protein 3 (GATA3), T-box transcription factor (T-bet), interleukin-10 (IL-10), and IL-4. Control piglets gained approximately 35% more weight than those infected with PRDC. Specifically, PCV-2+ cells were detected in piglets from the infected group in the following proportions: WEA ≤ INI ≤ GRO. In infected piglets, the CD4+ count increased at WEA and decreased at GRO, CD4+ expression profile showed an overexpression of T-bet at INI and GRO, and the expression of IFN-γ was lower at WEA and GRO. In contrast, IL-4 was overexpressed at all 3 stages. GATA3 was overexpressed at INI and GRO. The infected piglets showed lymphopenia and less CD4+ cells. CD4+ cells showed a different expression profile than the control group, in which IFN-γ was less expressed, whereas IL-4 and T-bet were overexpressed.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"87 2","pages":"110-119"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069147/pdf/cjvr_02_110.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41177621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluating the outcome after center of rotation of angulation (CORA)-based leveling osteotomy (CBLO) technique to repair unilateral cranial cruciate ligament deficiency using a pressure-sensitive walkway system.","authors":"Ömer Coskun, Sivert Viskjer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The objective of this study was to evaluate the mid-term outcome of center of rotation of angulation (CORA)-based leveling osteotomy (CBLO) in dogs with cranial cruciate ligament (CrCL) deficiency using a pressure-sensitive walkway system. Fifteen dogs with unilateral CrCL deficiency were treated with CBLO for an average of 50 wk (median 46 wk, range: 38 to 91) prior to the evaluation. The contralateral hind limb was confirmed free of any signs of pathology by clinical examination and lateral stifle radiography. A control group of 20 healthy dogs was included to establish reference values for comparison purposes. Spatiotemporal parameters and peak vertical force (PVF) were measured and symmetry index (SI) was calculated between the left and right pelvic limb and between thoracic and pelvic limbs, in both groups. The mean hind limb SI for the 15 CBLO-treated dogs and the 20 dogs in the control group was 1.02 ± 0.1 and 1.03 ± 0.07, respectively, the difference being not significant (<i>P</i> = 0.75). There was no significant difference in the thoracic limb/pelvic limb ratio between the 2 groups (<i>P</i> = 0.42). The dogs' recovery was objectively measured on a pressure-sensitive walkway and the CrCL-deficient dogs had returned to full functioning within 6 to 12 mo. Center of rotation of angulation-based leveling osteotomy provided normal function of the operated hind limb and should be considered as an option for treating canine CrCL deficiency.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"87 2","pages":"157-164"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069156/pdf/cjvr_02_157.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41165527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rebecca Di Pietro, Luis G Arroyo, Mathilde Leclere, Marcio Costa
{"title":"Effects of concentrated fecal microbiota transplant on the equine fecal microbiota after antibiotic-induced dysbiosis.","authors":"Rebecca Di Pietro, Luis G Arroyo, Mathilde Leclere, Marcio Costa","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Bacterial imbalances are observed in intestinal diseases and fecal microbiota transplantation (FMT) has been used to restore the intestinal microbiota of horses. However, there is evidence that the current methods proposed for FMT in horses have limited efficacy. The objective of this study was to concentrate the bacteria present in the donor stool by centrifugation, and to test the effect in horses with antibiotic-induced dysbiosis. One healthy 11-year-old horse was selected as a fecal donor and 9 horses were given trimethoprim sulfadiazine (TMS) for 5 days to induce dysbiosis. Horses received either a concentrated FMT (cFMT, <i>n</i> = 3), fresh unconcentrated FMT (fFMT, <i>n</i> = 3), or 10% glycerol solution (vehicle, VEH, <i>n</i> = 3) by nasogastric tube for 3 days. Fecal samples were collected on Days 0, 4, 9, 11, and 21 for microbiota analysis (Illumina sequencing). The TMS significantly changed the bacterial composition of horses' feces (D0 <i>versus</i> D4). The composition of the cFMT and fFMT recipient horses was significantly different after transplantation compared to after antibiotic-induced dysbiosis (D4 <i>versus</i> D11), whereas the microbiota of the vehicle recipients was not, indicating that both protocols induced transient changes. However, preparation of FMT solutions markedly changed the original composition present in the donor's feces, with significant enrichment of <i>Escherichia</i> genus in the cFMT. Individual susceptibility to restoration of the microbiota was observed in horses, similar to what is known for other species. Our results suggest that concentrating bacteria should not be recommended in preparation of FMT solutions and that further research is required to improve current methods recommended to perform FMT in horses.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"87 2","pages":"85-96"},"PeriodicalIF":1.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069150/pdf/cjvr_02_85.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41158149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana S González Méndez, Fernando Cerón-Téllez, Rosa E Sarmiento Silva, Jorge L Tórtora Pérez, Edith Rojas-Anaya, Hugo Ramírez Álvarez
{"title":"Presence of co-infection between bovine leukemia virus and bovine herpesvirus 1 in herds vaccinated against bovine respiratory complex.","authors":"Ana S González Méndez, Fernando Cerón-Téllez, Rosa E Sarmiento Silva, Jorge L Tórtora Pérez, Edith Rojas-Anaya, Hugo Ramírez Álvarez","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The aim of this study was molecular identification of bovine leukemia virus and possible co-infection with bovine respiratory disease complex (BRDC) viral agents in Mexican dairy herds. We collected 533 blood samples from cattle vaccinated against the BRDC virus in 9 states across Mexico. Peripheral blood leukocytes were removed and genetic material was extracted to detect bovine leukemia virus (BLV), bovine herpesvirus 1 (BoHV-1), bovine viral diarrhea virus (BVDV), bovine parainfluenza virus 3 (BPIV-3), and bovine respiratory syncytial virus (BRSV) infection using polymerase chain reaction. We identified high BLV infection rates in 270 cattle (50.65%). One hundred and thirty-three cows (24.95%) tested positive for BoHV-1, of which 65 samples were positive for both viruses (BoHV-1 and BLV) and 68 were only positive for BoHV-1. Only 4 samples tested positive for BPIV-3 and no sample was positive for BVDV or BRSV. Relative risk and odds ratio analyses did not identify that the presence of BLV infection favors BoHV-1 co-infection in vaccinated herds.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"87 2","pages":"105-109"},"PeriodicalIF":1.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069155/pdf/cjvr_02_105.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41170218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julia Assis Arantes, Alexandre Secorun Borges, Luiza Stachewski Zakia, Michael Gordon Surette, Jeffrey Scott Weese, Marcio Carvalho Costa, Luis Guillermo Arroyo
{"title":"Effect of dietary iron supplementation on the equine fecal microbiome.","authors":"Julia Assis Arantes, Alexandre Secorun Borges, Luiza Stachewski Zakia, Michael Gordon Surette, Jeffrey Scott Weese, Marcio Carvalho Costa, Luis Guillermo Arroyo","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Iron is an essential element for all living organisms, including bacteria, as several virulence factors and replication components are influenced by iron concentration. The objective of this study was to determine whether the composition and diversity of the fecal microbiota of adult horses are affected by supplemental dietary iron. Ten clinically healthy horses were randomly divided into a control and an iron-supplemented group (<i>n</i> = 5). The treated group was supplemented with oral ferrous sulphate monohydrate (720 ppm of iron), whereas the control group received 320 ppm of iron daily for 15 d. Fecal samples were collected before and 5, 10, 15, and 30 d after supplementation and frozen at -80°C. DNA was sequenced using an Illumina MiSeq platform and data were analyzed using the software Mothur and linear discriminant analysis (LDA) effect size (LEfSe). Iron supplementation caused no change in the overall composition of the fecal microbiota, but some minor changes were observed in the low-abundant bacteria, as well as an increased <i>alpha</i> diversity after 15 d of supplementation. Significant differences in community composition of the fecal microbiota over time were observed in both groups, highlighting the importance of a control group, as there are variables that cannot be controlled in microbiome studies.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"87 2","pages":"97-104"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069153/pdf/cjvr_02_97.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41124126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Janine A Terschuur, Richard P C Coomer, Shaun A McKane
{"title":"Administration safety of medical-grade honey (MGH) in septic synovial structures in horses: 3 cases.","authors":"Janine A Terschuur, Richard P C Coomer, Shaun A McKane","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The objective of this study was to investigate the postoperative use of intrasynovial honey as an antimicrobial after treatment for synovial sepsis in horses. One colt and 2 mares were presented with acute lameness, with or without an associated wound. All 3 cases were initially managed with surgical endoscopic or tenoscopic debridement and lavage for treatment of different synovial structures. Collection of synovial fluid was consistent with synovial sepsis and this was diagnosed in each case. All horses subsequently underwent arthroscopic lavage under general anesthetic and intraarticular or intrathecal medical-grade honey (MGH) was then instilled. All 3 cases recovered well and were free from lameness at all gaits. Although there is extensive research about the antimicrobial properties of honey and growing interest in the biocompatibility of honey in joints with the use of honey hydrogels in human medicine, the research in veterinary medicine is lacking. There are studies describing the antimicrobial properties of honey in healing wounds in horses, but there are no published studies describing the use of honey within a synovial structure. Further research is necessary to assess the biocompatibility of honey in equine articular cartilage. In the cases described in this article, the use of honey demonstrated a safe adjunctive therapy after conventional surgical treatment for septic arthritis.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"87 2","pages":"153-156"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069145/pdf/cjvr_02_153.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41174637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jacqueline M Stalker, Lisa Gamsjäger, Jennifer M Pearson, Douglas W Morck, M Claire Windeyer
{"title":"The impact of freezing and multiple freeze-thaw cycles on Brix refractometry estimates of immunoglobulin concentration in beef cattle colostrum.","authors":"Jacqueline M Stalker, Lisa Gamsjäger, Jennifer M Pearson, Douglas W Morck, M Claire Windeyer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Evaluation of immunoglobulin G (IgG) concentration in colostrum is important to guide on-farm management. Studies have shown that digital Brix refractometry accurately estimates colostrum IgG concentration in both dairy and beef cattle colostrum. Colostrum is often frozen in both clinical and research settings. The implications of this freezing on the accuracy of Brix refractometry measurements are largely unknown. The first objective of this study was to evaluate the agreement between digital Brix percentage measurements of IgG in beef cattle colostrum taken before and after different durations of freezing. The second objective was to evaluate the effects of multiple freeze-thaw (FT) cycles on Brix percentage measurements of IgG in beef cattle colostrum. There was good agreement between Brix percentages in fresh colostrum and after short (2 to 8 d), medium (4 to 7 mo), and long (3 y) periods of freezing (concordance correlation coefficient: 0.95, 0.96, and 0.96, respectively). Although there was no significant change in mean Brix percentages over 2 FT cycles (<i>P</i> > 0.05), mean Brix percentages decreased with 3 FT cycles (<i>P</i> = 0.017). Samples from the fourth and fifth FT cycles were observably coagulated, and these measurements were therefore deemed inaccurate. Data from this study indicate that freezing had minimal impact on digital Brix refractometer estimates of IgG concentration in beef cattle colostrum, but that samples stored for future testing should not undergo more than 2 FT cycles.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"87 2","pages":"146-152"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069141/pdf/cjvr_02_146.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41175349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jianguo Dong, Mingrui Chen, Linyang Yu, Dan Rao, Ning Zhang, Feng Cong
{"title":"Seneca Valley virus induces proinflammatory cytokine and chemokine response <i>in vitro</i>.","authors":"Jianguo Dong, Mingrui Chen, Linyang Yu, Dan Rao, Ning Zhang, Feng Cong","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Seneca Valley virus (SVV) is an oncolytic virus, which belongs to the Picornaviridae family, that causes blisters on the nose and hooves, affecting the production performance of pigs. However, the function of proinflammatory cytokines and chemokines in SVV infection is still unclear. In our study, SVV infection could induce a high expression of proinflammatory cytokines interleukin (IL)-1α, IL-1β, and tumor necrosis factor α (TNF-α) and chemokines, including chemokine (C-C motif) ligand 2 (CCL2), chemokine (C-C motif) ligand 5 (CCL5), and chemokine (C-X-C motif) ligand 10 (CXCL10). Interfered genes of IL-1α, IL-1β, and TNF-α inhibited virus replication, but interfered genes of CCL2, CCL5, and CXCL10 promoted virus replication. These results indicate that proinflammatory cytokines and chemokines are involved in SVV infection; this will be beneficial to explore the pathogenesis and cytokine therapy of SVV.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"87 2","pages":"120-126"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069161/pdf/cjvr_02_120.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41175738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christina M Fruehwald, Penny J Regier, Kaitlyn M Mullen, Monica Waln, Kaitlyn L McNamara, James Colee
{"title":"Comparison of surgeon experience using simple interrupted and simple continuous suture patterns in intestinal resection and anastomosis.","authors":"Christina M Fruehwald, Penny J Regier, Kaitlyn M Mullen, Monica Waln, Kaitlyn L McNamara, James Colee","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This experimental study compared leak pressures and completion time of intestinal anastomoses performed by novice veterinarians and a Board-certified surgeon using simple interrupted and simple continuous suture patterns. Grossly normal jejunal segments (<i>n</i> = 108) from 6 fresh canine cadavers were used to harvest 8-cm cooled canine cadaveric jejunal segments that were randomly assigned to a control group (12 segments) and 4 treatment groups (24 segments/group, 12 constructs/group): i) simple interrupted anastomoses performed by a Board-certified surgeon (BSI); ii) simple continuous anastomoses performed by a Board-certified surgeon (BSC); iii) simple interrupted anastomoses performed by novice veterinarians (NSI); and iv) simple continuous anastomoses performed by novice veterinarians (NSC). Median (range) initial leak pressure (ILP) for control was 400.2 mmHg (226.0 to 500.0 mmHg), BSI 37.4 (14.4 to 124.0), BSC 32.5 (13.4 to 91.0), NSI 36.5 (22.9 to 62.0), and NSC 47.5 (8.9 to 120.0). No difference was noted between experience (<i>P</i> = 0.73, <i>P</i> = 0.53), suture technique (<i>P</i> = 0.07, <i>P</i> = 0.38), or across treatment groups (<i>P</i> = 0.17, <i>P</i> = 0.94), for ILP or MIP (maximum intraluminal pressure), respectively. Time to construct completion differed based on suture technique (<i>P</i> < 0.0001) and experience (<i>P</i> < 0.0001). The median and mean ILP of all anastomoses exceeded physiologic intraluminal peristaltic pressures. Simple continuous anastomoses were faster to complete overall. Both handsewn anastomosis techniques are appropriate for intestinal anastomoses.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"86 3","pages":"165-171"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9251800/pdf/cjvr_03_165.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41158150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ananya Mahalingam-Dhingra, Melissa R Mazan, Daniela Bedenice, Michelle Ceresia, Jill Minuto, Edward F Deveney
{"title":"A CONSORT-guided, randomized, double-blind, controlled pilot clinical trial of inhaled lidocaine for the treatment of equine asthma.","authors":"Ananya Mahalingam-Dhingra, Melissa R Mazan, Daniela Bedenice, Michelle Ceresia, Jill Minuto, Edward F Deveney","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>There are limited options for treatment of the common disease, equine asthma. The aim of this study was to estimate the feasibility and potential efficacy of using nebulized lidocaine for treating equine asthma, while at the same time treating a separate cohort of asthmatic horses with inhaled budesonide. Nineteen horses with a history consistent with equine asthma were recruited from our referral population for a double-blind, randomized, controlled pilot clinical trial using Consolidated Standards of Reporting Trials (CONSORT) guidelines. After screening, 16 horses met the inclusion criteria for equine asthma and 13 horses actually completed the study. Horses were treated by their owners at home for 14 d before returning to our hospital for follow-up assessment. Interventions consisted of nebulization q12h for 14 d with 1.0 mg/kg body weight (BW) of lidocaine or corticosteroid treatment (nebulized budesonide 1 μg/kg, q12h). Clinical and tracheal mucus score, pulmonary function testing, and respiratory secretion cytology were assessed after 2 weeks of treatment to determine the outcome. Both lidocaine and budesonide cohorts had significant decreases (<i>P</i> < 0.05) in clinical score; the lidocaine cohort showed a significant decrease in bronchoalveolar lavage (BAL) neutrophil percentage and tracheal mucus score. Neither treatment resulted in significant changes in lung function parameters. No adverse events occurred. Lidocaine may be an effective and safe treatment for equine asthma in horses that cannot tolerate treatment with corticosteroids.</p>","PeriodicalId":93919,"journal":{"name":"Canadian journal of veterinary research = Revue canadienne de recherche veterinaire","volume":"86 2","pages":"116-124"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8978287/pdf/cjvr_02_116.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41175739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}