1
|
Lim C, Dandrieux JRS, Ploeg R, Nowell CJ, Firestone SM, Mansfield CS. Evaluation of Ki-67, goblet cell and MUC2 mucin RNA expression in dogs with lymphoplasmacytic and granulomatous colitis. Vet Immunol Immunopathol 2024; 271:110740. [PMID: 38537313 DOI: 10.1016/j.vetimm.2024.110740] [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: 11/07/2023] [Revised: 02/20/2024] [Accepted: 02/29/2024] [Indexed: 04/29/2024]
Abstract
Intestinal mucus barrier disruption may occur with chronic inflammatory enteropathies. The lack of studies evaluating mucus health in dogs with chronic colitis arises from inherent challenges with assessment of the intestinal mucus layer. It is therefore unknown if reduced goblet cell (GBC) numbers and/or mucin 2 (MUC2) expression, which are responsible for mucus production and secretion, correlate with inflammation severity in dogs with granulomatous colitis (GC) or lymphocytic-plasmacytic colitis (LPC). It is undetermined if Ki-67 immunoreactivity, which has been evaluated in dogs with small intestinal inflammation, similarly correlates to histologic severity in GC and LPC. Study objectives included comparing Ki-67 immunoreactivity, GBC population and MUC2 expression in dogs with GC, LPC and non-inflamed colon; and exploring the use of ribonucleic acid (RNAscope®) in-situ hybridization (ISH) to evaluate MUC2 expression in canine colon. Formalin-fixed endoscopic colonic biopsies were obtained from 48 dogs over an eight-year period. A blinded pathologist reviewed all biopsies. Dogs were classified into the GC (n=19), LPC (n=19) or no colitis (NC) (n=10) group based on final histopathological diagnosis. Ki-67 immunohistochemistry, Alcian-Blue/PAS staining to highlight GBCs, and RNAscope® ISH using customized canine MUC2-targeted probes were performed. At least five microscopic fields per dog were selected to measure Ki-67 labelling index (KI67%), GBC staining percentage (GBC%) and MUC2 expression (MUC2%) using image analysis software. Spearman's correlation coefficients were used to determine associations between World Small Animal Veterinary Association histologic score (WHS) and measured variables. Linear regression models were used to compare relationships between WHS with KI67%, GBC%, and MUC2%; and between GBC% and MUC2%. Median WHS was highest in dogs with GC. Median KI67% normalised to WHS was highest in the NC group (6.69%; range, 1.70-23.60%). Median GBC% did not correlate with colonic inflammation overall. Median MUC2% normalised to WHS in the NC group (10.02%; range, 3.05-39.09%) was two- and three-fold higher than in the GC and LPC groups respectively. With increased colonic inflammation, despite minimal changes in GBC% overall, MUC2 expression markedly declined in the LPC group (-27.4%; 95%-CI, -49.8, 5.9%) and mildly declined in the GC and NC groups. Granulomatous colitis and LPC likely involve different pathways regulating MUC2 expression. Decreased MUC2 gene expression is observed in dogs with chronic colitis compared to dogs without colonic signs. Changes in MUC2 expression appear influenced by GBC activity rather than quantity in GC and LPC.
Collapse
Affiliation(s)
- Chelsea Lim
- Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Australia.
| | - Julien R S Dandrieux
- Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Australia; The University of Edinburgh, Royal (Dick) School of Veterinary Studies, United Kingdom
| | - Richard Ploeg
- Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Australia; CSIRO - Geelong, Australian Centre for Disease Preparedness (ACDP), Australia
| | - Cameron J Nowell
- Monash Institute of Pharmaceutical Sciences, Monash University, Australia
| | - Simon M Firestone
- Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Australia
| | - Caroline S Mansfield
- Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Australia; The University of Queensland, School of Veterinary Science, Australia
| |
Collapse
|
2
|
Forman MA, Steiner JM, Armstrong PJ, Camus MS, Gaschen L, Hill SL, Mansfield CS, Steiger K. Response to letter regarding "ACVIM consensus statement on pancreatitis in cats". J Vet Intern Med 2024; 38:17. [PMID: 38032253 PMCID: PMC10800204 DOI: 10.1111/jvim.16943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Affiliation(s)
- Marnin A Forman
- Cornell University Veterinary Specialists, Stamford, Connecticut, USA
| | - Joerg M Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - P Jane Armstrong
- College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota, USA
| | - Melinda S Camus
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
| | - Lorrie Gaschen
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Steve L Hill
- Flagstaff Veterinary Internal Medicine Consulting, Flagstaff, Arizona, USA
| | - Caroline S Mansfield
- Melbourne Veterinary School, University of Melbourne, Melbourne, Victoria, Australia
| | - Katja Steiger
- Institute of Pathology, School of Medicine and Health, Technical University of Munich, Munich, Germany
| |
Collapse
|
3
|
Forman MA, Steiner JM, Armstrong PJ, Camus MS, Gaschen L, Hill SL, Mansfield CS, Steiger K. Response to letter regarding "ACVIM consensus statement on pancreatitis in cats". J Vet Intern Med 2021; 35:1646-1647. [PMID: 34021507 PMCID: PMC8295654 DOI: 10.1111/jvim.16164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 05/03/2021] [Indexed: 11/27/2022] Open
Affiliation(s)
- Marnin A Forman
- Cornell University Veterinary Specialists, Stamford, Connecticut, USA
| | - Joerg M Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - P Jane Armstrong
- College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota, USA
| | - Melinda S Camus
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
| | - Lorrie Gaschen
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Steve L Hill
- Flagstaff Veterinary Internal Medicine Consulting, Flagstaff, Arizona, USA
| | - Caroline S Mansfield
- Melbourne Veterinary School, University of Melbourne, Melbourne, Victoria, Australia
| | - Katja Steiger
- Institute of Pathology, School of Medicine, Technical University of Munich, Munich, Germany
| |
Collapse
|
4
|
Forman MA, Steiner JM, Armstrong PJ, Camus MS, Gaschen L, Hill SL, Mansfield CS, Steiger K. Response to letter regarding "ACVIM consensus statement on pancreatitis in cats". J Vet Intern Med 2021; 35:1650-1651. [PMID: 34021509 PMCID: PMC8295698 DOI: 10.1111/jvim.16167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 05/03/2021] [Indexed: 11/27/2022] Open
Affiliation(s)
- Marnin A Forman
- Cornell University Veterinary Specialists, Stamford, Connecticut, USA
| | - Joerg M Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - P Jane Armstrong
- College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota, USA
| | - Melinda S Camus
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
| | - Lorrie Gaschen
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Steve L Hill
- Flagstaff Veterinary Internal Medicine Consulting, Flagstaff, Arizona, USA
| | | | - Katja Steiger
- Institute of Pathology, School of Medicine, Technical University of Munich, Munich, Germany
| |
Collapse
|
5
|
Forman MA, Steiner JM, Armstrong PJ, Camus MS, Gaschen L, Hill SL, Mansfield CS, Steiger K. ACVIM consensus statement on pancreatitis in cats. J Vet Intern Med 2021; 35:703-723. [PMID: 33587762 PMCID: PMC7995362 DOI: 10.1111/jvim.16053] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 12/16/2022] Open
Abstract
Background Pancreatitis in cats, although commonly diagnosed, still presents many diagnostic and management challenges. Objective To summarize the current literature as it relates to etiology, pathogenesis, diagnosis, and management of pancreatitis in cats and to arrive at clinically relevant suggestions for veterinary clinicians that are based on evidence, and where such evidence is lacking, based on consensus of experts in the field. Animals None. Methods A panel of 8 experts in the field (5 internists, 1 radiologist, 1 clinical pathologist, and 1 anatomic pathologist), with support from a librarian, was formed to assess and summarize evidence in the peer reviewed literature and complement it with consensus clinical recommendations. Results There was little literature on the etiology and pathogenesis of spontaneous pancreatitis in cats, but there was much in the literature about the disease in humans, along with some experimental evidence in cats and nonfeline species. Most evidence was in the area of diagnosis of pancreatitis in cats, which was summarized carefully. In contrast, there was little evidence on the management of pancreatitis in cats. Conclusions and Clinical Importance Pancreatitis is amenable to antemortem diagnosis by integrating all clinical and diagnostic information available, and recognizing that acute pancreatitis is far easier to diagnose than chronic pancreatitis. Although both forms of pancreatitis can be managed successfully in many cats, management measures are far less clearly defined for chronic pancreatitis.
Collapse
Affiliation(s)
- Marnin A Forman
- Cornell University Veterinary Specialists, Stamford, Connecticut, USA
| | - Joerg M Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - P Jane Armstrong
- College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota, USA
| | - Melinda S Camus
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA
| | - Lorrie Gaschen
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Louisiana, USA
| | - Steve L Hill
- Flagstaff Veterinary Internal Medicine Consulting, Flagstaff, Arizona, USA
| | | | - Katja Steiger
- Institute of Pathology, School of Medicine, Technical University of Munich, Munich, Germany
| |
Collapse
|
6
|
Turner RBS, Tyrrell D, Hepworth G, Dunshea FR, Mansfield CS. Compartmental fat distribution in the abdomen of dogs relative to overall body fat composition. BMC Vet Res 2020; 16:104. [PMID: 32228685 PMCID: PMC7106746 DOI: 10.1186/s12917-020-02327-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 03/23/2020] [Indexed: 12/04/2022] Open
Abstract
Background Adipose tissue may have different metabolic and endocrine functions depending on the region of the body in which it is located. While visceral or intra-abdominal fat has been found to contribute to leptin concentrations, insulin resistance and obesity-related diseases, there are only a few imaging studies documenting the preferential distribution of body fat to either the intra-abdominal or subcutaneous compartments in dogs. This study aimed to determine if CT-measured abdominal fat distributed preferentially to the visceral space (V) relative to the subcutaneous space (SQ), with increasing DXA-determined total body fat percentage; and if ultrasound measurements of the ventral midline subcutaneous (SAT) and visceral adipose thickness (VAT) can be used to estimate the distribution of fat to the subcutaneous and visceral abdominal spaces, in a sample of 22 dogs with variable body condition. Results Multivariate analysis showed no statistically significant correlation between visceral to subcutaneous fat ratio (V/SQ) and increasing total body fat percentage (β = − 0.07, p = 0.733), but strong correlation with age (β = 0.71 p = 0.002). A substantial amount of variation for the ultrasound visceral adipose thickness to subcutaneous fat thickness (VAT/SAT) could be explained by both CT V/SQ and sex (R2Adjusted = 0.477, p = 0.001), with female dogs having significant lower VAT/SAT ratios compared to the male dogs (p = 0.047). The ultrasound fat measurements appeared moderately reliable, but a larger sample number is required to confirm this. Conclusions The findings suggest that dogs with a relatively healthy to slightly overweight body condition score, distribute fat relatively similarly between their peritoneal (visceral) and subcutaneous abdominal compartments with increasing total body fat percentage. However, there was increased fat distribution to the peritoneal space relative to the subcutaneous space with increasing age. Further, abdominal ultrasound may be useful in estimating the ratio of fat distribution to both the abdominal visceral and subcutaneous spaces.
Collapse
Affiliation(s)
- R B S Turner
- U-Vet Animal Hospital, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia.
| | - D Tyrrell
- U-Vet Animal Hospital, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | - G Hepworth
- Statistical Consulting Centre, University of Melbourne, 139 Barry Street, Carlton, Melbourne, Victoria, 3053, Australia
| | - F R Dunshea
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, 3052, Australia
| | - C S Mansfield
- U-Vet Animal Hospital, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| |
Collapse
|
7
|
Yoon S, Fleeman LM, Wilson BJ, Mansfield CS, McGreevy P. Epidemiological study of dogs with diabetes mellitus attending primary care veterinary clinics in Australia. Vet Rec 2020; 187:e22. [PMID: 32051292 DOI: 10.1136/vr.105467] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 10/31/2019] [Accepted: 12/16/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND The objectives of this study were to establish the prevalence, risk factors and comorbidities/sequelae for diabetes mellitus (DM) in Australian dogs presented to first-opinion veterinary practices. METHODS Electronic patient records of dogs (n=134,329) attending 152 veterinary clinics during 2017 were sourced through VetCompass Australia. They included 418 dogs with DM; a prevalence of 0.36 per cent (95 per cent CI 0.33 per cent to 0.39 per cent) in Australian dogs attending these veterinary clinics. By comparing with the reference group of rarer breeds and unidentified crossbreeds, multivariable modelling was used to reveal breeds (and their crosses) with significantly higher odds of having DM. RESULTS The results revealed that breeds (and their crosses) with significantly higher odds of having DM were Australian terriers (ORs=7.93 (95 per cent CI 2.83 to 22.27)), Siberian huskies (OR=6.24 (95 per cent CI 2.51 to 15.54)), English springer spaniels (OR=5.37 (95 per cent CI 1.48 to 19.53)), West Highland white terriers (OR=4.85 (95 per cent CI 2.55 to 9.25)), miniature schnauzers (OR=3.47 (95 per cent CI 1.16 to 10.35)), all types of poodles (OR=3.41 (95 per cent CI 2.07 to 5.61)), bichon frises (OR=3.41 (95 per cent CI 1.65 to 7.01)), schnauzers (OR=3.18 (95 per cent CI 1.42 to 7.11)) and cavalier King Charles spaniels (CKCS; OR=1.84 (95 per cent CI 1.08 to 3.13)). Breeds with lower risk were German shepherd dogs (OR=0.11 (95 per cent CI 0.01 to 0.84)), golden retrievers (OR=0.09 (95 per cent CI 0.01 to 0.68)) and boxers (no cases identified). Fisher's exact tests showed that labradoodles were diagnosed significantly more often than purebred Labradors (P=0.04) and did not differ significantly from poodles (P=0.81). Cavoodles did not differ significantly from either CKCS (p~1.00) or poodles (P=0.12). Spoodles were significantly less diagnosed than poodles (P=0.003) but did not differ from cocker spaniels (P=0.66). Desexed male dogs had a higher odds of DM than entire male (OR=0.62 (95 per cent CI 0.39 to 0.98)) and desexed female dogs (OR=0.76 (95 per cent CI 0.61 to 0.96)). Comorbidities/sequelae associated with canine DM included suspected pancreatitis (OR 10.58 (95 per cent CI 5.17 to 22.78)), cataracts (OR 9.80 (95 per cent CI 5.65 to 17.35)), hyperadrenocorticism (OR 6.21 (95 per cent CI 3.29 to 11.88)), urinary tract infection (OR 5.09 (95 per cent CI 1.97 to 13.41)) and hypothyroidism (OR 4.10 (95 per cent CI 1.08 to 15.58)). CONCLUSIONS Breeds at most risk included Australian terriers and Siberian huskies as previously reported, as well as, for the first time, English springer spaniels. In contrast to other populations where there is female predisposition for DM, desexed male dogs in Australia were at increased risk for DM compared with both entire males and desexed females. This predisposition for desexed males to develop DM warrants further investigation.
Collapse
Affiliation(s)
- Samuel Yoon
- Sydney School of Veterinary Science, New South Wales, Sydney, Australia
| | | | - Bethany J Wilson
- Sydney School of Veterinary Science, New South Wales, Sydney, Australia
| | - Caroline S Mansfield
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Paul McGreevy
- Sydney School of Veterinary Science, New South Wales, Sydney, Australia
| |
Collapse
|
8
|
Dandrieux J, Martinez Lopez LM, Prakash N, Mansfield CS. Treatment response and long term follow up in nineteen dogs diagnosed with chronic enteropathy in Australia. Aust Vet J 2019; 97:301-307. [PMID: 31328260 DOI: 10.1111/avj.12846] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 05/20/2019] [Accepted: 05/23/2019] [Indexed: 12/25/2022]
Abstract
Chronic enteropathy (CE) in dogs is common worldwide, but little data is available from Australia. The aim of this study was to describe treatment response and long-term outcome in a cohort of dogs with CE. Dogs were prospectively enrolled at Murdoch University and the University of Melbourne. After diagnostic investigation to rule out diseases other than CE, dogs underwent sequential therapeutic trials until achieving a clinical response (diet then antibiotics, and finally immunosuppressants). Success was defined as 75% reduction of clinical severity for a minimum of five weeks. A total of 21 dogs were enrolled, and 19 completed the study. One dog was euthanised for lack of response to treatment and one excluded for lack of owner compliance. Most dogs responded to diet (n = 10), followed by antibiotics (n = 7) and immunosuppressants (n = 2). Long-term remission (median 21.1 months, [3.0-44.7]) was achieved in eight out of ten dietary responders without additional treatment. In contrast, only two dogs with antibiotic response remained in long-term remission, of which one needed on-going antibiotic treatment. Longer term remission was achieved in the two dogs treated with immunosuppressants with on-going low dose therapy. This study concludes that most dogs referred for CE in Australia respond to dietary treatment (even after previous dietary interventions), and remission is long-term compared to dogs treated with an antibiotic. Furthermore, the need for long-term antibiotics in some dogs to maintain response may lead to antibiotic resistance. This study supports adequate dietary trials for CE in dogs, and a need for alternative second-line treatments.
Collapse
Affiliation(s)
- Jrs Dandrieux
- Translational Research and Animal Clinical Trial Study (TRACTS) group, The University of Melbourne, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, 250 Princes Hwy, Werribee, 3030, Victoria, Australia
| | - L M Martinez Lopez
- Translational Research and Animal Clinical Trial Study (TRACTS) group, The University of Melbourne, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, 250 Princes Hwy, Werribee, 3030, Victoria, Australia
| | - N Prakash
- Translational Research and Animal Clinical Trial Study (TRACTS) group, The University of Melbourne, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, 250 Princes Hwy, Werribee, 3030, Victoria, Australia.,Mount Pleasant Veterinary Group, Mount Pleasant @ Gelenggang, 2 Jalan Gelenggang, Singapore, 578187, Singapore
| | - C S Mansfield
- Translational Research and Animal Clinical Trial Study (TRACTS) group, The University of Melbourne, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, 250 Princes Hwy, Werribee, 3030, Victoria, Australia
| |
Collapse
|
9
|
Prakash N, Stumbles P, Mansfield CS. Concentrations of interleukin-6, -8, -10 and tumour necrosis factor-α in the faeces of dogs with acute diarrhoea. N Z Vet J 2019; 67:138-142. [PMID: 30753790 DOI: 10.1080/00480169.2019.1582368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AIM To compare the concentration of faecal cytokines interleukin (IL)-6, -8, -10, and tumour necrosis factor (TNF)-α in dogs with acute diarrhoea with clinically normal (non-diarrhoeic) dogs. METHODS A total of 14 dogs presenting with acute diarrhoea, and 25 dogs with no history of gastrointestinal signs in the 2 months prior to enrolment, were recruited from two veterinary hospitals in Melbourne, Australia. Concentrations of IL-6, -8, -10, and TNF-α were measured in faecal samples using canine-specific ELISA. RESULTS The diarrhoeic dogs were diagnosed with or managed for acute gastroenteritis (n = 6), extra-intestinal neoplasia (n = 2), parvoviral enteritis (n = 1), hepatopathy (n = 1), acute pancreatitis (n = 1), hypoadrenocorticism (n = 1), gastric dilatation volvulus (n = 1) and myelopathy (n = 1). IL-6 was detectable in the faeces of 10/14 (71%) diarrhoeic and 7/25 (28%) non-diarrhoeic dogs, and median concentrations were 10.8 (min 0.0, max 54.0) and 2.0 (min 0.0, max15.0) pg/mL, respectively (p = 0.01). IL-8 was detectable in the faeces of all diarrhoeic and 11 non-diarrhoeic dogs, and median concentrations were 149.7 (min 3.72, max 730.1) and 3.4 (min 0.0, max 22.5) pg/mL, respectively (p < 0.001). TNF-α was detected in the faeces of two of the diarrhoeic dogs (3.4 and 15.6 pg/mL) and none of the non-diarrhoeic dogs. IL-10 was not detected in the faeces of any dog. CONCLUSIONS Faecal concentrations of IL-6 and -8 were higher in diarrhoeic compared to non-diarrhoeic dogs, and are therefore potential candidates for non-invasive biomarkers to assess the severity and resolution of acute intestinal disease in dogs. However their correlation with disease progression and severity needs to be further investigated before their full clinical application can be determined.
Collapse
Affiliation(s)
- N Prakash
- a Faculty of Veterinary and Agricultural Sciences , University of Melbourne , Werribee , Australia.,c Current address: Mount Pleasant Veterinary Centre , Singapore
| | - P Stumbles
- b School of Veterinary and Biomedical Sciences , Murdoch University , Murdoch , Australia
| | - C S Mansfield
- a Faculty of Veterinary and Agricultural Sciences , University of Melbourne , Werribee , Australia
| |
Collapse
|
10
|
Dandrieux JRS, Narayanan L, Firestone S, Archer TM, Mansfield CS. Effect of immunosuppressive drugs on cytokine production in canine whole blood stimulated with lipopolysaccharide or a combination of ionomycin and phorbol 12-myristate 13-acetate. Vet Med Sci 2019; 5:199-205. [PMID: 30663866 PMCID: PMC6498811 DOI: 10.1002/vms3.143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
A pharmacodynamic assay has been previously developed to monitor ciclosporin treatment in dogs by assessing inhibition of cytokine transcription after whole blood stimulation with 12-myristate 13-1 acetate and ionomycin (PMA/I). In this study, whole blood stimulation with either PMA/I or lipopolysaccharide (LPS) was used to assess the effect of multiple drugs (azathioprine, ciclosporin, mycophenolate, leflunomide and prednisone) after a 7-day treatment course on production of cytokines measured with a multiplex assay in healthy dogs (n = 4 for each treatment). Interleukin-10 (IL-10), interferon gamma (IFNγ) and tumour necrosis factor alpha (TNFα) were significantly activated by PMA/I stimulation and IL-6, IL-10 and TNFα by LPS stimulation, in the absence of immunosuppressive drugs. After ciclosporin treatment, IL-10, IFNγ and TNFα production was significantly reduced after stimulation with PMA/I compared to pre-treatment. After prednisone treatment, TNFα production was significantly reduced after stimulation with PMA/I or LPS compared to pre-treatment. No significant change was observed after treatment with azathioprine, leflunomide or mycophenolate. This methodology may be useful to monitor dogs not only treated with ciclosporin, but also with prednisone or a combination of both. Further studies are needed to assess the use of this assay in a clinical setting.
Collapse
Affiliation(s)
- Julien R S Dandrieux
- Department of Veterinary Clinical Sciences, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Werribee, Vic, Australia
| | - Lakshmi Narayanan
- Department of Sustainable Bioproducts, Mississippi State University, Starkville, MS, USA
| | - Simon Firestone
- Faculty of Veterinary and Agricultural Sciences, Asia-Pacific Centre for Animal Health, University of Melbourne, Parkville, Vic, Australia
| | - Todd M Archer
- Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, MS, Mississippi
| | - Caroline S Mansfield
- Department of Veterinary Clinical Sciences, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, University of Melbourne, Werribee, Vic, Australia
| |
Collapse
|
11
|
Turner RBS, Hepworth G, Wilson K, Tyrrell D, Dunshea FR, Mansfield CS. Abdominal volume computed tomography assessment of body composition in dogs. BMC Vet Res 2019; 15:21. [PMID: 30621710 PMCID: PMC6325834 DOI: 10.1186/s12917-018-1768-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 12/27/2018] [Indexed: 02/02/2023] Open
Abstract
Background Computed tomography (CT) has been used to estimate body composition and determine tissue distribution in dogs, despite limited validation. This may introduce error into estimates of body composition studies and its effect on health in dogs. Further, the modality has not been validated against dual-energy X-ray absorptiometry (DXA) or over a wide range of dog breeds, ages and sexes. The objective of this study was to validate the use of semi-automated, abdominal volume CT for estimating total body composition of dogs relative to DXA. Twenty-two staff-owned dogs (weighing between 5.1-60 kg) were sedated and underwent full body DXA scan and abdominal CT. Abdominal tissue composition was estimated by CT using semi-automated volume segmentation, over predetermined tissue Hounsfield threshold values. Abdominal tissue composition determined by the various CT threshold ranges was compared to total body composition determined by DXA. Results Abdominal tissue composition estimated by CT strongly correlated with the estimates derived from DXA with a small Bland-Altman mean percentage differences in values: total body mass (− 250/2000HU: r2 = 0.985; − 1.10%); total fat mass (− 250/-25HU: r2 = 0.981; − 1.90%); total lean tissue mass (− 25/150HU: r2 = 0.972; 3.47%); and total bone mineral content (150/2000HU: r2 = 0.900; − 0.87%). Although averaged CT values compared well to DXA analysis, there was moderate variation in the individual predicted values. There was near perfect inter- and intra-observer agreement in segmentation volumes for abdominal fat. Conclusions Abdominal volume computed tomography (CT) accurately and reliably estimates total body composition in dogs, but greater variations may be observed in dogs weighing less than 10 kg.
Collapse
Affiliation(s)
- R B S Turner
- U-Vet Animal Hospital, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia.
| | - G Hepworth
- Statistical Consulting Centre, University of Melbourne, 139 Barry Street, Carlton, Melbourne, Victoria, 3053, Australia
| | - K Wilson
- U-Vet Animal Hospital, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | - D Tyrrell
- U-Vet Animal Hospital, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | - F R Dunshea
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, 3052, Australia
| | - C S Mansfield
- U-Vet Animal Hospital, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| |
Collapse
|
12
|
McGreevy PD, Wilson BJ, Mansfield CS, Brodbelt DC, Church DB, Dhand N, Soares Magalhães RJ, O’Neill DG. Labrador retrievers under primary veterinary care in the UK: demography, mortality and disorders. Canine Genet Epidemiol 2018; 5:8. [PMID: 30377534 PMCID: PMC6196571 DOI: 10.1186/s40575-018-0064-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 08/30/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Labrador retrievers are reportedly predisposed to many disorders but accurate prevalence information relating to the general population are lacking. This study aimed to describe demography, mortality and commonly recorded diseases in Labrador retrievers under UK veterinary care. METHODS The VetCompass™ programme collects electronic patient record data on dogs attending UK primary-care veterinary practices. Demographic analysis covered all33,320 Labrador retrievers in the VetCompass™ database under veterinary care during 2013 while disorder and mortality data were extracted from a random sample of 2074 (6.2%) of these dogs. RESULTS Of the Labrador retrievers with information available, 15,427 (46.4%) were female and 15,252 (53.6%) were male. Females were more likely to be neutered than males (59.7% versus 54.8%, P < 0.001). The overall mean adult bodyweight was 33.0 kg (SD 6.1). Adult males were heavier (35.2 kg, SD 5.9 kg) than adult females (30.4 kg, SD 5.2 kg) (P < 0.001). The median longevity of Labrador retrievers overall was 12.0 years (IQR 9.9-13.8, range 0.0-16.0). The most common recorded colours were black (44.6%), yellow (27.8%) and liver/chocolate (reported from hereon as chocolate) (23.8%). The median longevity of non-chocolate coloured dogs (n = 139, 12.1 years, IQR 10.2-13.9, range 0.0-16.0) was longer than for chocolate coloured animals (n = 34, 10.7 years, IQR 9.0-12.4, range 3.8-15.5) (P = 0.028).Of a random sample of 2074 (6.2%) Labrador retrievers under care in 2013 that had full disorder data extracted, 1277 (61.6%) had at least one disorder recorded. The total number of dogs who died at any date during the study was 176. The most prevalent disorders recorded were otitis externa (n = 215, prevalence 10.4%, 95% CI: 9.1-11.8), overweight/obesity (183, 8.8%, 95% CI: 7.6-10.1) and degenerative joint disease (115, 5.5%, 95% CI: 4.6-6.6). Overweight/obesity was not statistically significantly associated with neutering in females (8.3% of entire versus 12.5% of neutered, P = 0.065) but was associated with neutering in males (4.1% of entire versus 11.4% of neutered, P < 0.001). The prevalence of otitis externa in black dogs was 12.8%, in yellow dogs it was 17.0% but, in chocolate dogs, it rose to 23.4% (P < 0.001). Similarly, the prevalence of pyo-traumatic dermatitis in black dogs was 1.1%, in yellow dogs it was 1.6% but in chocolate dogs it rose to 4.0% (P = 0.011). CONCLUSIONS The current study assists prioritisation of health issues within Labrador retrievers. The most common disorders were overweight/obesity, otitis externa and degenerative joint disease. Males were significantly heavier females. These results can alert prospective owners to potential health issues and inform breed-specific wellness checks.
Collapse
Affiliation(s)
- Paul D. McGreevy
- Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW 2006 Australia
| | - Bethany J. Wilson
- Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW 2006 Australia
| | - Caroline S. Mansfield
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, VIC 3030 Australia
| | - Dave C. Brodbelt
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts AL9 7TA UK
| | - David B. Church
- Clinical Sciences and Services, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts AL9 7TA UK
| | - Navneet Dhand
- Faculty of Science, The University of Sydney, Sydney, NSW 2006 Australia
| | - Ricardo J. Soares Magalhães
- UQ Spatial Epidemiology Laboratory, School of Veterinary Science, The University of Queensland, Gatton, QLD 4343 Australia
- Children’s Health and Environment Program, Child Health Research Centre, The University of Queensland, Brisbane, Australia
| | - Dan G. O’Neill
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts AL9 7TA UK
| |
Collapse
|
13
|
Dandrieux JR, Martinez Lopez LM, Stent A, Jergens A, Allenspach K, Nowell CJ, Firestone SM, Kimpton W, Mansfield CS. Changes in duodenal CD163-positive cells in dogs with chronic enteropathy after successful treatment. Innate Immun 2018; 24:400-410. [PMID: 30223681 PMCID: PMC6830873 DOI: 10.1177/1753425918799865] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Chronic enteropathy (CE) in dogs is characterized retrospectively per treatment response as food-responsive enteropathy (FRE), antibiotic-responsive enteropathy (ARE), and immunosuppressant-responsive enteropathy (IRE) - the latter most resembling inflammatory bowel disease in people. The aim of this study was to characterize duodenal macrophages (Mϕ) in CE using immunohistochemistry; with calprotectin (CAL) as a marker of early differentiated Mϕ and CD163 expression as a marker for resident Mϕ in the duodenum before and after treatment. Prior to treatment, dogs with FRE and IRE had a lower CD163+/CAL+ ratio than control dogs (CTRL) in crypts; this increased significantly and normalized compared with CTRL after treatment. Conversely, the CD163+/CAL+ ratio in dogs with ARE was comparable to that in healthy dogs before and after treatment. In summary, these results suggest that Mϕ play a role in the pathogenesis of CE in FRE and IRE, with a decrease in resident Mϕ and an increase in early differentiated Mϕ, but not in ARE dogs. Mϕ normalize after successful treatment.
Collapse
Affiliation(s)
- Julien Rs Dandrieux
- 1 Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Australia.,2 Translational Research and Animal Clinical Trial Study (TRACTS) group, U-Vet Animal Hospital, Australia
| | - Lina Maria Martinez Lopez
- 1 Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Australia.,2 Translational Research and Animal Clinical Trial Study (TRACTS) group, U-Vet Animal Hospital, Australia
| | - Andrew Stent
- 1 Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Australia.,2 Translational Research and Animal Clinical Trial Study (TRACTS) group, U-Vet Animal Hospital, Australia
| | - Albert Jergens
- 3 College of Veterinary Medicine, Iowa State University, USA
| | | | - Cameron J Nowell
- 4 Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Australia
| | - Simon M Firestone
- 1 Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Australia.,5 Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Australia
| | - Wayne Kimpton
- 1 Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Australia
| | - Caroline S Mansfield
- 1 Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Australia.,2 Translational Research and Animal Clinical Trial Study (TRACTS) group, U-Vet Animal Hospital, Australia
| |
Collapse
|
14
|
Moreno PS, Wagner J, Kirkwood CD, Gilkerson JR, Mansfield CS. Characterization of the fecal virome in dogs with chronic enteropathy. Vet Microbiol 2018; 221:38-43. [PMID: 29981706 DOI: 10.1016/j.vetmic.2018.05.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/18/2018] [Accepted: 05/29/2018] [Indexed: 01/21/2023]
Abstract
The fecal virome has been investigated in humans and various animal species using next generation sequencing. However, limited information is available about the fecal virome of dogs with chronic enteropathy (CE). We aimed to characterize the canine fecal virome of dogs with CE and compare it with the virome of previously analyzed healthy dogs.A total of 16 adult dogs; 8 healthy dogs (data from a parallel study) and 8 dogs with CE had fecal samples assessed by viral shotgun sequencing. Fecal samples were subjected to enrichment of viral nucleic acids prior to sequencing and metagenomic analyses. Characterization of the complete genome of a canine kobuvirus was performed by Sanger sequencing. An additional 21 healthy dogs and 14 dogs with CE were further analyzed for the prevalence of canine kobuvirus.Three fecal samples from dogs with CE contained in total 3 eukaryotic viral families. In contrast, 4/8 fecal samples previously identified from healthy dogs, contained 5 eukaryotic viral families with 2 families exclusive to this group. Bacteriophages were identified in all fecal samples from CE and healthy dogs. Canine kobuvirus was identified in one dog with CE, by shotgun sequencing, and the complete genome was then characterized. This kobuvirus was classified within canine kobuvirus group, being similar to strains from Korea and China. The larger prevalence study did not detect additional samples positive for canine kobuvirus. The fecal virome of dogs with CE differs in number and type of viral families from healthy dogs. The first Australian canine kobuvirus sequence was identified and characterized from a dog with CE.
Collapse
Affiliation(s)
- Paloma S Moreno
- Enteric Viruses Group, Murdoch Children's Research Institute, VIC, Australia; Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, VIC, Australia.
| | - Josef Wagner
- Enteric Viruses Group, Murdoch Children's Research Institute, VIC, Australia; Department of Pediatrics, The University of Melbourne, VIC, Australia
| | - Carl D Kirkwood
- Department of Pediatrics, The University of Melbourne, VIC, Australia
| | - James R Gilkerson
- Centre for Equine Infectious Diseases, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, VIC, Australia
| | - Caroline S Mansfield
- Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, VIC, Australia
| |
Collapse
|
15
|
Sumner JA, Witham AI, Stent AW, Wightman PF, Mansfield CS. Emergence of nasal chondrosarcoma in a dog with nasal polyposis. Clin Case Rep 2018; 6:821-826. [PMID: 29744065 PMCID: PMC5930220 DOI: 10.1002/ccr3.1407] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/29/2017] [Accepted: 01/02/2018] [Indexed: 11/09/2022] Open
Abstract
Whilst the malignant transformation of nasal polyps or secondary development of nasal neoplasia after chronic inflammation is likely to be relatively rare, this potential complication should be considered, and the clinician should be vigilant for evidence of malignant transformation.
Collapse
Affiliation(s)
- Judd A Sumner
- Faculty of Veterinary and Agricultural Sciences Melbourne Veterinary School University of Melbourne 250 Princess Highway Werribee Melbourne Victoria 3030 Australia.,Translational Research and Animal Clinical Trial Study (TRACTS) Group University of Melbourne Melbourne Victoria 3013 Australia.,Brisbane Veterinary Specialist Centre Corner of Old Northern Road and Keong Road Albany Creek Queensland 4035 Australia
| | - Adrian I Witham
- Faculty of Veterinary and Agricultural Sciences Melbourne Veterinary School University of Melbourne 250 Princess Highway Werribee Melbourne Victoria 3030 Australia.,Translational Research and Animal Clinical Trial Study (TRACTS) Group University of Melbourne Melbourne Victoria 3013 Australia
| | - Andrew W Stent
- Faculty of Veterinary and Agricultural Sciences Melbourne Veterinary School University of Melbourne 250 Princess Highway Werribee Melbourne Victoria 3030 Australia
| | - Paul F Wightman
- Faculty of Veterinary and Agricultural Sciences Melbourne Veterinary School University of Melbourne 250 Princess Highway Werribee Melbourne Victoria 3030 Australia.,Massey University School of Veterinary Science Tennant Drive Palmerston North 4442 New Zealand
| | - Caroline S Mansfield
- Faculty of Veterinary and Agricultural Sciences Melbourne Veterinary School University of Melbourne 250 Princess Highway Werribee Melbourne Victoria 3030 Australia.,Translational Research and Animal Clinical Trial Study (TRACTS) Group University of Melbourne Melbourne Victoria 3013 Australia
| |
Collapse
|
16
|
Karamatic SL, Anderson GA, Parry BW, Slocombe RF, Mansfield CS. Prevalence and risk factors for medical events following exercise at Australian Greyhound race meetings. Aust Vet J 2018; 96:120-126. [PMID: 29577254 DOI: 10.1111/avj.12678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 05/11/2017] [Accepted: 06/03/2017] [Indexed: 12/01/2022]
Abstract
AIM A prospective, observational study to determine the prevalence of post-exercise conditions at Australian Greyhound race meetings and to assess association with race performance and other environmental, race- and dog-related factors was undertaken. METHODS A total of 4020 starters were observed (2813 Greyhounds, 1009 trainers, 536 races, 52 race meets, 48 race dates and 11 race tracks) following a race. The presence of diaphragmatic flutter (DF), ataxia, seizure, collapse or sudden death was recorded. Risk factors were screened by univariable logistic regression prior to multivariable backward stepwise model building. RESULTS In this study, 962 starters (n = 768 dogs) had DF (23.9%), 16 starters were ataxic (0.4%) and there were no observed cases of collapse, seizure or sudden death. Race track location, increasing race distance, race grade based on increasing 1st place prize value, lower (earlier) race number at the meeting, age, a previous observation of DF at the last start, females, colour (white) and better finishing position were all associated with an increased risk of a Greyhound being observed with DF. However, when logistic regression assessing the random effect of dog was performed, the presence of previous DF was not significant. In this cohort, DF was common following strenuous exercise in Greyhounds and on its own does not appear to result in reduced performance or distress to the animal. CONCLUSION The incidence of ataxia was low and collapse, seizure and sudden death were not observed. However, even though uncommon, ataxia has welfare concerns for racing Greyhounds that warrants further investigation.
Collapse
Affiliation(s)
- S L Karamatic
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | - G A Anderson
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | - B W Parry
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | - R F Slocombe
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | - C S Mansfield
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| |
Collapse
|
17
|
Chow KE, Tyrrell D, Yang M, Abraham LA, Anderson GA, Mansfield CS. Scintigraphic Assessment of Deposition of Radiolabeled Fluticasone Delivered from a Nebulizer and Metered Dose Inhaler in 10 Healthy Dogs. J Vet Intern Med 2017; 31:1849-1857. [PMID: 28961322 PMCID: PMC5697178 DOI: 10.1111/jvim.14832] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/17/2017] [Accepted: 08/21/2017] [Indexed: 11/30/2022] Open
Abstract
Background Aerosolized medications are increasingly being used to treat respiratory diseases in dogs. No previous studies assessing respiratory tract deposition of radiolabeled aerosols have been performed in conscious dogs. Hypothesis/Objectives Assess respiratory tract deposition of radiolabeled, inhalant corticosteroid (fluticasone propionate labeled with 99mTc) delivered from a nebulizer and metered dose inhaler (MDI) to healthy dogs. Animals Ten healthy Foxhounds. Methods Prospective, randomized, cross‐over pilot study. Initial inhalation method (nebulizer or MDI) was randomly assigned. Treatments were crossed over after a 7‐day washout period. Treatments initially were performed using sedation. Dogs were imaged using 2‐dimensional planar scintigraphy, with respiratory tract deposition quantified by manual region‐of‐interest analysis. Deposition calculated as percentage of delivered dose. Six of 10 dogs were randomly selected and reassessed without sedation. Results Inhalation method had significant effect on respiratory tract deposition (P = 0.027). Higher deposition was achieved by nebulization with mean deposition of 4.2% (standard deviation [SD], 1.4%; range, 1.9–6.1%); whereas MDI treatment achieved a mean of 2.3% (SD, 1.4%; range, 0.2–4.2%). Nebulization achieved higher respiratory tract deposition than MDI in 7 of 10 dogs. No statistical difference (P = 0.68) was found between mean respiratory tract deposition achieved in dogs when unsedated (3.8%; SD, 1.5%) or sedated (3.6%; SD, 1.7%). Conclusions and Clinical Importance Study confirms respiratory tract deposition of inhalant medications delivered from a nebulizer and MDI in healthy dogs, breathing tidally with and without sedation. Respiratory tract deposition in these dogs was low compared to reported deposition in adult humans, but similar to reported deposition in children.
Collapse
Affiliation(s)
- K E Chow
- Translational Research and Animal Clinical TrialS (TRACTS) Group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Vic., Australia
| | - D Tyrrell
- Translational Research and Animal Clinical TrialS (TRACTS) Group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Vic., Australia
| | - M Yang
- Faculty of Pharmacy, The University of Sydney, Camperdown, NSW, Australia
| | - L A Abraham
- Translational Research and Animal Clinical TrialS (TRACTS) Group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Vic., Australia
| | - G A Anderson
- Translational Research and Animal Clinical TrialS (TRACTS) Group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Vic., Australia
| | - C S Mansfield
- Translational Research and Animal Clinical TrialS (TRACTS) Group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Vic., Australia
| |
Collapse
|
18
|
McGreevy P, Thomson P, Dhand NK, Raubenheimer D, Masters S, Mansfield CS, Baldwin T, Soares Magalhaes RJ, Rand J, Hill P, Peaston A, Gilkerson J, Combs M, Raidal S, Irwin P, Irons P, Squires R, Brodbelt D, Hammond J. VetCompass Australia: A National Big Data Collection System for Veterinary Science. Animals (Basel) 2017; 7:ani7100074. [PMID: 28954419 PMCID: PMC5664033 DOI: 10.3390/ani7100074] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 01/08/2023] Open
Abstract
Simple Summary The VetCompass Australia program collects real-time clinical records from veterinary practices and aggregates them for researchers to interrogate. It delivers Australian researchers sustainable and cost-effective access to authoritative data from hundreds of veterinary practitioners, across Australia and opens up major international collaborative opportunities with related projects in the United Kingdom and elsewhere. Abstract VetCompass Australia is veterinary medical records-based research coordinated with the global VetCompass endeavor to maximize its quality and effectiveness for Australian companion animals (cats, dogs, and horses). Bringing together all seven Australian veterinary schools, it is the first nationwide surveillance system collating clinical records on companion-animal diseases and treatments. VetCompass data service collects and aggregates real-time, clinical records for researchers to interrogate, delivering sustainable and cost-effective access to data from hundreds of veterinary practitioners nationwide. Analysis of these clinical records will reveal geographical and temporal trends in the prevalence of inherited and acquired diseases, identify frequently prescribed treatments, revolutionize clinical auditing, help the veterinary profession to rank research priorities, and assure evidence-based companion-animal curricula in veterinary schools. VetCompass Australia will progress in three phases: (1) roll-out of the VetCompass platform to harvest Australian veterinary clinical record data; (2) development and enrichment of the coding (data-presentation) platform; and (3) creation of a world-first, real-time surveillance interface with natural language processing (NLP) technology. The first of these three phases is described in the current article. Advances in the collection and sharing of records from numerous practices will enable veterinary professionals to deliver a vastly improved level of care for companion animals that will improve their quality of life.
Collapse
Affiliation(s)
- Paul McGreevy
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, NSW 2006, Australia.
| | - Peter Thomson
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, NSW 2006, Australia.
| | - Navneet K Dhand
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, NSW 2006, Australia.
| | - David Raubenheimer
- Charles Perkins Centre and School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia.
| | - Sophie Masters
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, NSW 2006, Australia.
| | - Caroline S Mansfield
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, VIC 3030, Australia.
| | - Timothy Baldwin
- School of Computing and Information Systems, University of Melbourne, Parkville, VIC 3010, Australia.
| | - Ricardo J Soares Magalhaes
- School of Veterinary Science, University of Queensland, Gatton, QLD 4343, Australia.
- Child Health Research Centre, University of Queensland, South Brisbane, QLD 4101, Australia.
| | - Jacquie Rand
- School of Veterinary Science, University of Queensland, Gatton, QLD 4343, Australia.
| | - Peter Hill
- School of Animal and Veterinary Sciences, University of Adelaide, Roseworthy, SA 5371, Australia.
| | - Anne Peaston
- School of Animal and Veterinary Sciences, University of Adelaide, Roseworthy, SA 5371, Australia.
| | - James Gilkerson
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia.
| | - Martin Combs
- School of Animal and Veterinary Science, Faculty of Science, Charles Sturt University, Wagga, NSW 2650, Australia.
| | - Shane Raidal
- School of Animal and Veterinary Science, Faculty of Science, Charles Sturt University, Wagga, NSW 2650, Australia.
| | - Peter Irwin
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia.
| | - Peter Irons
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia.
| | - Richard Squires
- College of Public Health, Medical and Veterinary Science, James Cook University, Townsville, QLD 4811, Australia.
| | - David Brodbelt
- Pathobiology and Population Services, Royal Veterinary College, University of London, Hertfordshire AL9 7TA, UK.
| | - Jeremy Hammond
- Information and Communications Technology, University of Sydney, NSW 2006, Australia.
| |
Collapse
|
19
|
McCann S, le Chevoir M, Lacorcia L, Wernham B, Mansfield CS. Cricopharyngeal dysphagia and phenobarbitone-responsive sialoadenosis in a Miniature Poodle. Aust Vet J 2017; 95:232-236. [PMID: 28653385 DOI: 10.1111/avj.12595] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/24/2016] [Accepted: 09/29/2016] [Indexed: 11/29/2022]
Abstract
CASE REPORT An 11-year-old male neutered Miniature Poodle was investigated for ptyalism, weight loss and anorexia. Cricopharyngeal dysphagia was diagnosed using fluoroscopy, and non-inflammatory salivary disease was diagnosed using a combination of cytology and computed tomography. The dog was successfully managed with phenobarbitone. CONCLUSION To the authors' knowledge this is the first time acquired cricopharyngeal dysphagia and phenobarbitone-responsive sialoadenosis have been described together.
Collapse
Affiliation(s)
- Sam McCann
- Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Science, 250 Princes Hwy, Werribee 3030, Victoria, Australia
| | - M le Chevoir
- Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Science, 250 Princes Hwy, Werribee 3030, Victoria, Australia
| | - L Lacorcia
- Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Science, 250 Princes Hwy, Werribee 3030, Victoria, Australia
| | - Bgj Wernham
- Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Science, 250 Princes Hwy, Werribee 3030, Victoria, Australia
| | - C S Mansfield
- Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Science, 250 Princes Hwy, Werribee 3030, Victoria, Australia
| |
Collapse
|
20
|
Moreno PS, Wagner J, Mansfield CS, Stevens M, Gilkerson JR, Kirkwood CD. Characterisation of the canine faecal virome in healthy dogs and dogs with acute diarrhoea using shotgun metagenomics. PLoS One 2017; 12:e0178433. [PMID: 28570584 PMCID: PMC5453527 DOI: 10.1371/journal.pone.0178433] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 11/21/2016] [Accepted: 05/12/2017] [Indexed: 01/01/2023] Open
Abstract
The virome has been increasingly investigated in numerous animal species and in different sites of the body, facilitating the identification and discovery of a variety of viruses. In spite of this, the faecal virome of healthy dogs has not been investigated. In this study we describe the faecal virome of healthy dogs and dogs with acute diarrhoea in Australia, using a shotgun metagenomic approach. Viral sequences from a range of different virus families, including both RNA and DNA families, and known pathogens implicated in enteric disease were documented. Twelve viral families were identified, of which four were bacteriophages. Eight eukaryotic viral families were detected: Astroviridae, Coronaviridae, Reoviridae, Picornaviridae, Caliciviridae, Parvoviridae, Adenoviridae and Papillomaviridae. Families Astroviridae, Picornaviridae and Caliciviridae were found only in dogs with acute diarrhoea, with Astroviridae being the most common family identified in this group. Due to its prevalence, characterisation the complete genome of a canine astrovirus was performed. These studies indicate that metagenomic analyses are useful for the investigation of viral populations in the faeces of dogs. Further studies to elucidate the epidemiological and biological relevance of these findings are warranted.
Collapse
Affiliation(s)
- Paloma S. Moreno
- Enteric Viruses Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia
- Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria, Australia
- * E-mail:
| | - Josef Wagner
- Enteric Viruses Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Caroline S. Mansfield
- Translational Research and Animal Clinical Trial Study (TRACTS) group, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Matthew Stevens
- Australian Genome Research Facility, Melbourne, Victoria, Australia
| | - James R. Gilkerson
- Centre for Equine Infectious Diseases, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Carl D. Kirkwood
- Enteric Viruses Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| |
Collapse
|
21
|
Haworth MD, Hosgood G, Swindells KL, Mansfield CS. Diagnostic accuracy of the SNAP and Spec canine pancreatic lipase tests for pancreatitis in dogs presenting with clinical signs of acute abdominal disease. J Vet Emerg Crit Care (San Antonio) 2014; 24:135-43. [PMID: 24739030 DOI: 10.1111/vec.12158] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Accepted: 12/26/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To (i) assess the clinical diagnostic accuracy of SNAP canine pancreatic lipase (cPL) and specific canine pancreatic lipase (Spec cPL) and (ii) assess the agreement of an abnormal test result between SNAP cPL and Spec cPL in dogs presenting with acute abdominal disease. DESIGN Prospective observational cohort study. SETTING University teaching hospital emergency center. ANIMALS Thirty-eight client-owned dogs that presented with acute abdominal disease, with a known final diagnosis between March 2009 and April 2010. Dogs were retrospectively assigned into 2 groups, dogs with acute pancreatitis (AP) (Group 1) and dogs without AP (Group 2). INTERVENTIONS Paired serum samples obtained within 24 hours of presentation were analyzed using the SNAP cPL test and Spec cPL assay. MEASUREMENTS AND RESULTS SNAP cPL clinical sensitivity and specificity was 82% (9/11 dogs of group 1) and 59% (16/27 dogs of group 2), respectively. Spec cPL clinical sensitivity and specificity was 70% (7/10 dogs of group 1) and 77% (20/26 dogs of group 2), respectively. Accuracy of the SNAP and Spec cPL for a clinical diagnosis of pancreatitis was found to be 66% and 75%, respectively. Agreement between a positive SNAP (cPL ≥ 200 μg/L) and a clinical diagnosis pancreatitis resulted in κ = 0.33. Agreement between an increased Spec (cPL ≥ 400 μg/L) and a clinical diagnosis of pancreatitis resulted in a κ = 0.43. The agreement between SNAP and Spec cPL (cPL ≥ 200 μg/L) for the entire cohort resulted in κ = 0.78. CONCLUSION SNAP cPL and Spec cPL results may provide a "false positive" diagnosis of pancreatitis in up to 40% of dogs presenting with acute abdominal disease. There is good overall agreement between SNAP cPL and Spec cPL; however, there were 4/38 dogs with positive SNAP cPL and "normal" Spec cPL.
Collapse
Affiliation(s)
- Mark D Haworth
- School of Veterinary and Biomedical Sciences, Murdoch University, Perth, Western Australia, Australia
| | | | | | | |
Collapse
|
22
|
Bell ET, Suchodolski JS, Isaiah A, Fleeman LM, Cook AK, Steiner JM, Mansfield CS. Faecal microbiota of cats with insulin-treated diabetes mellitus. PLoS One 2014; 9:e108729. [PMID: 25279695 PMCID: PMC4184829 DOI: 10.1371/journal.pone.0108729] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [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: 02/13/2013] [Accepted: 08/27/2014] [Indexed: 01/13/2023] Open
Abstract
Microorganisms within the gastrointestinal tract significantly influence metabolic processes within their mammalian host, and recently several groups have sought to characterise the gastrointestinal microbiota of individuals affected by metabolic disease. Differences in the composition of the gastrointestinal microbiota have been reported in mouse models of type 2 diabetes mellitus, as well as in human patients. Diabetes mellitus in cats has many similarities to type 2 diabetes in humans. No studies of the gastrointestinal microbiota of diabetic cats have been previously published. The objectives of this study were to compare the composition of the faecal microbiota of diabetic and non-diabetic cats, and secondarily to determine if host signalment and dietary factors influence the composition of the faecal microbiota in cats. Faecal samples were collected from insulin-treated diabetic and non-diabetic cats, and Illumina sequencing of the 16S rRNA gene and quantitative PCR were performed on each sample. ANOSIM based on the unweighted UniFrac distance metric identified no difference in the composition of the faecal microbiota between diabetic and non-diabetic cats, and no significant differences in the proportions of dominant bacteria by phylum, class, order, family or genus as determined by 16S rRNA gene sequencing were identified between diabetic and non-diabetic cats. qPCR identified a decrease in Faecalibacterium spp. in cats aged over ten years. Cat breed or gender, dietary carbohydrate, protein or fat content, and dietary formulation (wet versus dry food) did not affect the composition of the faecal microbiota. In conclusion, the composition of the faecal microbiota was not altered by the presence of diabetes mellitus in cats. Additional studies that compare the functional products of the microbiota in diabetic and non-diabetic cats are warranted to further investigate the potential impact of the gastrointestinal microbiota on metabolic diseases such as diabetes mellitus in cats.
Collapse
Affiliation(s)
- Erin T. Bell
- Translational Research and Animal Clinical Trial Study (TRACTS) Group, Faculty of Veterinary Science, The University of Melbourne, Melbourne, Victoria, Australia
- * E-mail:
| | - Jan S. Suchodolski
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Science, Texas A&M University, College Station, Texas, United States of America
| | - Anitha Isaiah
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Science, Texas A&M University, College Station, Texas, United States of America
| | | | - Audrey K. Cook
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Science, Texas A&M University, College Station, Texas, United States of America
| | - Jörg M. Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Science, Texas A&M University, College Station, Texas, United States of America
| | - Caroline S. Mansfield
- Translational Research and Animal Clinical Trial Study (TRACTS) Group, Faculty of Veterinary Science, The University of Melbourne, Melbourne, Victoria, Australia
| |
Collapse
|
23
|
Sharman MJ, Bacci B, Whittem T, Mansfield CS. In vivo confocal endomicroscopy of small intestinal mucosal morphology in dogs. J Vet Intern Med 2013; 27:1372-8. [PMID: 24128334 DOI: 10.1111/jvim.12214] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 07/03/2013] [Accepted: 09/03/2013] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Confocal endomicroscopy (CEM) is an endoscopic technology that permits in vivo cellular and subcellular imaging of the gastrointestinal mucosa. OBJECTIVE To determine the feasibility of CEM to evaluate small intestinal mucosal topologic morphology in dogs and to characterize the appearance in healthy dogs. ANIMALS Fourteen clinically healthy research colony dogs. METHODS Experimental study. Dogs were anesthetized for standard endoscopic evaluation of the small intestine followed by CEM. Two fluorophores were used to provide contrast: fluorescein (10% solution, 15 mg/kg IV) before administration of topical acriflavine (0.05% solution) via an endoscopy spray catheter. A minimum of 5 sites within the small intestine were assessed and at each location, sequential adjustment of imaging depth allowed collection of a three-dimensional volume equivalent to an 'optical biopsy'. CEM-guided pinch biopsies were obtained for histologic examination. RESULTS CEM provided high-quality in vivo cellular and subcellular images. Intravenous administration of fluorescein provided sufficient contrast to allow assessment of the vasculature, cellular cytoplasmic features and goblet cell numbers, and distribution. Topical application of acriflavine preferentially stained cellular nucleic acids, allowing evaluation of nuclear morphology. Quality of captured images was occasionally affected by motion artifact, but improved with operator experience. CONCLUSION AND CLINICAL IMPORTANCE CEM provides in vivo images that allow for cellular and subcellular assessment of intestinal mucosal morphology during endoscopy. This has implications for aiding in vivo diagnosis of gastrointestinal disease.
Collapse
Affiliation(s)
- M J Sharman
- Faculty of Veterinary Science, The University of Melbourne, Melbourne, Vic, Australia
| | | | | | | |
Collapse
|
24
|
McBride D, Hosgood GL, Mansfield CS, Smart L. Effect of hydroxyethyl starch 130/0.4 and 200/0.5 solutions on canine platelet function in vitro. Am J Vet Res 2013; 74:1133-7. [DOI: 10.2460/ajvr.74.8.1133] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
25
|
Sharman MJ, Mansfield CS, Whittem T. The exogenous fluorophore, fluorescein, enables in vivo assessment of the gastrointestinal mucosa via confocal endomicroscopy: optimization of intravenous dosing in the dog model. J Vet Pharmacol Ther 2012; 36:450-5. [PMID: 23240692 DOI: 10.1111/jvp.12031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Accepted: 11/13/2012] [Indexed: 12/19/2022]
Abstract
This study described the pharmacokinetics of the intravenous fluorophore, fluorescein, and aimed to evaluate its utility for use in upper gastrointestinal confocal endomicroscopy (CEM). Six healthy, mature, mixed-breed dogs were anesthetized and then dosed intravenously with fluorescein at 15 mg/kg. Blood samples were collected at predetermined time-points. Dogs were examined by upper gastrointestinal confocal endomicroscopy and monitored for adverse effects. Plasma fluorescein concentrations were measured using high-performance liquid chromatography (HPLC) with UV/Vis detection. Mean plasma concentration at 5 min was 57.6 ± 18.2 mg/L, and plasma concentrations decreased bi-exponentially thereafter with a mean concentration of 2.5 mg/L ± 1.26 at 120 min. Mean terminal plasma elimination half-life (t½β ) was 34.8 ± 8.94 min, and clearance was 9.1 ± 3.0 mL/kg/min. Apparent volume of distribution at steady-state was 0.3 ± 0.06 L/kg. Fluorescein provided optimal fluorescent contrast to enable in vivo histologically equivalent evaluation of topologic mucosal morphology within the first 30 min following intravenous administration. Adverse effects were not observed. Based upon the calculated clearance, a constant rate infusion at a rate of 0.18 mg/kg/min is predicted to be adequate, following an initial loading dose (2 mg/kg), to maintain plasma concentration at 20 mg/L for optimal CEM imaging during the study period.
Collapse
Affiliation(s)
- M J Sharman
- Faculty of Veterinary Science, The University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | | | | |
Collapse
|
26
|
Abstract
A 12-year-old female neutered ragdoll crossbred cat was presented for investigation of generalised weakness and regurgitation. The cat was being treated with transdermal methimazole for hyper-thyroidism, which had been diagnosed 10 weeks previously. An acetylcholine receptor antibody titre was consistent with acquired myasthenia gravis. Withdrawal of methimazole and treatment with pyridostigmine was followed by resolution of clinical signs and reduction of the acetylcholine -receptor antibody titre. Medical control of hyperthyroidism was subsequently achieved with carbimazole, administered in conjunction with pyridostigmine, and no recurrence of clinical signs was observed. Myasthenia gravis is an uncommon but clinically significant adverse effect of methimazole therapy in cats, and may be caused by immunomodulatory properties of this drug. An adverse drug reaction should be considered in cats receiving methimazole that develop myasthenia gravis, and potentially also other immune-mediated disorders.
Collapse
Affiliation(s)
- E T Bell
- Faculty of Veterinary Science, Veterinary Hospital, The University of Melbourne, 250 Princes Highway, Werribee, VIC, 3030, Australia
| | | | | |
Collapse
|
27
|
Abstract
Sinonasal aspergillosis is an uncommon, yet debilitating and often frustrating condition to treat in dogs despite years of research evaluating pathogenesis, diagnosis and treatment. The disease is most commonly caused by non-invasive fungal infection, thought to be secondary to altered innate and/or adaptive immune responses. Attempts to confirm this have however failed. A variety of conflicting opinions regarding the diagnosis and treatment of sinonasal aspergillosis exist. Often the use of a particular treatment protocol is based upon personal or regional preference. Evaluation of the veterinary literature demonstrates that the evidence base in support of individual treatment recommendations is weak. A number of recent publications have helped to expand the current knowledge base and therefore our understanding of important practicalities for both diagnostic options and treatment protocols. The following review examines the current evidence for the pathogenesis of sinonasal aspergillosis in dogs, as well as the various diagnostic options. The available evidence for frequently utilised -therapeutic options and their likely outcomes is also explored.
Collapse
Affiliation(s)
- M J Sharman
- Veterinary Science, University of Melbourne, 250 Princes Highway, Werribee, Victoria, 3030, Australia
| | | |
Collapse
|
28
|
Mansfield CS, Anderson GA, O’Hara AJ. Association between canine pancreatic-specific lipase and histologic exocrine pancreatic inflammation in dogs. J Vet Diagn Invest 2012; 24:312-8. [DOI: 10.1177/1040638711433598] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The current study aimed to determine the specificity, and to a lesser extent the sensitivity, of canine pancreatic-specific lipase (cPL) concentration in dogs with various disease conditions. Dogs were presented for postmortem examination and had serum collected for cPL concentration within 6 hr preceding death or immediately postmortem. Pancreatic tissue was collected postmortem, and sections from the left lobe, right lobe, and body of the pancreas were examined histologically. Inflammation and fibrosis in each section were assessed to determine a total pancreatic inflammatory score and pancreatic fibrosis score in each dog. Correlations between these scores and the cPL concentration were made, as well as determination of specificity. A total of 32 dogs were included in the analysis, 20 of whom had no to minimal pancreatic inflammation. The specificity of cPL with a cutoff value of 200 µg/l was 80% (95% confidence interval [CI]: 56–94%), while with a cutoff of 400 µg/l, the specificity was 90% (95% CI: 68–99%). There was a significant but rather low correlation between cPL concentration and the pancreatic inflammation score, but not with the fibrosis score. Canine pancreatic-specific lipase concentration has good specificity overall in dogs without pancreatitis. This test is less useful in dogs with milder pancreatitis, and both false-positive and false-negative results occur. Results indicated that dogs with clinical signs suggestive of pancreatitis would require abdominal imaging in addition to serum cPL testing to evaluate the cause (or causes) of clinical signs.
Collapse
Affiliation(s)
- Caroline S. Mansfield
- Department of Veterinary Clinical Science (Mansfield), School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia
- Department of Veterinary Biology (O’Hara), School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia
- Faculty of Veterinary Science, University of Melbourne, Werribee, Victoria, Australia (Anderson)
| | - Garry A. Anderson
- Department of Veterinary Clinical Science (Mansfield), School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia
- Department of Veterinary Biology (O’Hara), School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia
- Faculty of Veterinary Science, University of Melbourne, Werribee, Victoria, Australia (Anderson)
| | - Amanda J. O’Hara
- Department of Veterinary Clinical Science (Mansfield), School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia
- Department of Veterinary Biology (O’Hara), School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia
- Faculty of Veterinary Science, University of Melbourne, Werribee, Victoria, Australia (Anderson)
| |
Collapse
|
29
|
Simpson C, Jabbar A, Mansfield CS, Tyrrell D, Croser E, Abraham LA, Gasser RB. Molecular diagnosis of sparganosis associated with pneumothorax in a dog. Mol Cell Probes 2012; 26:60-2. [DOI: 10.1016/j.mcp.2011.08.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 08/16/2011] [Accepted: 08/18/2011] [Indexed: 11/24/2022]
|
30
|
Paul AEH, Shiel RE, Juvet F, Mooney CT, Mansfield CS. Effect of hematocrit on accuracy of two point-of-care glucometers for use in dogs. Am J Vet Res 2012; 72:1204-8. [PMID: 21879978 DOI: 10.2460/ajvr.72.9.1204] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the effect of Hct on blood glucose readings of dogs obtained by use of 2 point-of-care (POC) blood glucometers and a laboratory analyzer. ANIMALS 184 dogs, including 139 Greyhounds. PROCEDURES Venous blood samples collected from 184 dogs with a range of Hcts (measured in EDTA-anticoagulated blood) were immediately analyzed with a handheld glucometer specifically developed for veterinary use and a glucometer developed for use in humans. The remainder of each blood sample was placed in fluoride oxalate tubes, and plasma glucose concentration was measured with a laboratory analyzer. Agreement between results for the POC glucometers and laboratory analyzer and effect of Hct on glucometer accuracy was assessed via regression analysis. RESULTS Significant differences were detected between results of the glucometers and the reference laboratory analyzer. The Hct affected the correlation between results for the glucometers and the laboratory analyzer. Deviations of the glucometers from the reference interval varied with Hct. The glucometer for veterinary use more closely correlated with the glucose concentration when Hct was within or above its reference interval. The glucometer for use in humans more closely approximated laboratory reference glucose concentrations in anemic dogs. CONCLUSIONS AND CLINICAL RELEVANCE Hct had a relevant impact on the correlation between whole blood and plasma glucose concentrations in dogs. Significant variations between results obtained with the 2 glucometers could be critical when interpreting blood glucose measurements or selecting a POC glucometer for an intensive care setting and precise glycemic control in critically ill dogs.
Collapse
Affiliation(s)
- Amanda E H Paul
- Department of Veterinary Clinical Sciences, School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, WA 6155, Australia.
| | | | | | | | | |
Collapse
|
31
|
Mansfield CS, Watson PD, Jones BR. Specificity and sensitivity of serum canine pancreatic elastase-1 concentration in the diagnosis of pancreatitis. J Vet Diagn Invest 2011; 23:691-7. [DOI: 10.1177/1040638711407875] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The aim of the current study was to determine the sensitivity and specificity of serum canine pancreatic elastase-1 (cPE-1) for the diagnosis of pancreatitis in dogs. The study was prospective, assessing dogs presenting with clinical signs similar to pancreatitis. Sixty-one dogs were recruited (49 with pancreatic disease and 12 with non-pancreatic disease). There was no significant difference in serum cPE-1 between dogs with pancreatic disease and non-pancreatic disease. However, there was a significant difference in serum cPE-1 between severe acute pancreatitis and non-pancreatic disease. A cut-off value for serum cPE-1 > 17.24 ng/ml resulted in sensitivity of 61.4% and specificity of 91.7% for diagnosis of all types of pancreatic disease. The sensitivity rose to 65.85% and 78.26% for the diagnosis of all types of acute pancreatitis and severe acute pancreatitis, respectively. Serum cPE-1 is more sensitive at diagnosing severe acute pancreatitis than chronic or mild acute pancreatitis, and has a high positive likelihood ratio. Dogs with chronic pancreatitis tended to have lower serum cPE-1 concentration, suggesting decreased exocrine function.
Collapse
Affiliation(s)
- Caroline S. Mansfield
- Department of Veterinary Clinical Science, Murdoch University, Murdoch, Western Australia (Mansfield)
- The Queen’s Veterinary School Hospital, University of Cambridge, Cambridge, UK (Watson)
- Department of Small Animal Clinical Studies, University College, Dublin, Belfield, Ireland (Jones)
| | - Penny D. Watson
- Department of Veterinary Clinical Science, Murdoch University, Murdoch, Western Australia (Mansfield)
- The Queen’s Veterinary School Hospital, University of Cambridge, Cambridge, UK (Watson)
- Department of Small Animal Clinical Studies, University College, Dublin, Belfield, Ireland (Jones)
| | - Boyd R. Jones
- Department of Veterinary Clinical Science, Murdoch University, Murdoch, Western Australia (Mansfield)
- The Queen’s Veterinary School Hospital, University of Cambridge, Cambridge, UK (Watson)
- Department of Small Animal Clinical Studies, University College, Dublin, Belfield, Ireland (Jones)
| |
Collapse
|
32
|
FitzGerald LM, Fletcher MT, Paul AEH, Mansfield CS, O'Hara AJ. Hepatotoxicosis in dogs consuming a diet of camel meat contaminated with indospicine. Aust Vet J 2011; 89:95-100. [DOI: 10.1111/j.1751-0813.2010.00684.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
33
|
Abstract
CASE HISTORY A dog that had received 8 months of cyclosporin and ketoconazole therapy for treatment of atopic dermatitis subsequently developed severe neurological disease, that failed to respond to treatment with trimethoprim-sulphadiazine and clindamycin. HISTOPATHOLOGICAL FINDINGS: Histopathological examination of the pulmonary parenchyma and spinal cord revealed loose aggregates of Gram-positive, partially acid-fast, fine, beaded, filamentous bacteria, most consistent with Nocardia spp. DIAGNOSIS A presumptive diagnosis was made of disseminated nocardiosis of the spinal cord and lungs. CLINICAL RELEVANCE Nocardia spp. is an opportunistic actinomycete that may cause disseminated disease, particularly in immunocompromised animals. Cyclosporin is used in veterinary medicine to control immune-mediated and allergic disorders, with few reported adverse side effects. This case gives further evidence that involvement of the spinal cord in nocardiosis of the central nervous system (CNS) carries a poor prognosis, and opportunistic infection by Nocardia spp. may be a potential complication of immunosuppressive cyclosporin therapy in the dog.
Collapse
Affiliation(s)
- A E H Paul
- Department of Veterinary Clinical Sciences, Murdoch University, Murdoch, Western Australia 6150, Australia.
| | | | | |
Collapse
|
34
|
Abstract
OBJECTIVE Medical records of eight dogs presenting with acute onset of neurological signs and a diagnosis of brain infarction as determined by computed tomography (CT) imaging were reviewed. DESIGN Retrospective single-centre case review. RESULTS Ischaemic infarction in the territory of the rostral cerebellar artery was identified in three spaniel-breed dogs. All cerebellar infarcts were non-haemorrhagic. Telencephalic infarcts were identified in five dogs, in the territories of the middle cerebral artery (2/5) and rostral cerebral artery (3/5). One of these dogs had an ischaemic infarction, but all other infarctions appeared haemorrhagic. All dogs were geriatric (≥ 8 years old), with concurrent medical conditions identified in six dogs. One dog was euthanased after diagnosis because of the severity of its neurological signs and one dog was euthanased as a result of associated renal disease 2 months after diagnosis. Six dogs were alive at least 1 year after diagnosis. CONCLUSIONS CT is useful in the diagnosis of cerebrovascular accident in dogs, which can present as a spectrum of images with early changes in attenuation and subtle mass effects detected after infarction. CT is particularly sensitive for detecting haemorrhagic infarction, but under-represent ischaemic and lacunar infarctions when compared with MRI.
Collapse
Affiliation(s)
- A E H Paul
- Murdoch University Veterinary Hospital, Murdoch Dve., Murdoch, Western Australia, Australia.
| | | | | |
Collapse
|
35
|
Ong RKC, Swindells K, Mansfield CS. Prospective determination of the specificity of a commercial snake venom detection kit in urine samples from dogs and cats. Aust Vet J 2010; 88:222-4. [DOI: 10.1111/j.1751-0813.2010.00584.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
36
|
Sharman MJ, Stayt J, McGill SE, Mansfield CS. Clinical resolution of a nasal granuloma caused by Trichosporon loubieri. J Feline Med Surg 2010; 12:345-50. [DOI: 10.1016/j.jfms.2009.11.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2009] [Indexed: 11/25/2022]
Abstract
The current report describes the diagnosis of a nasopharyngeal granuloma due to a fungal infection by Trichosporon loubieri. This is the first report of successful treatment of nasal granuloma formation caused by Trichosporon species infection in a cat.
Collapse
Affiliation(s)
- Mellora J. Sharman
- Department of Veterinary Clinical Sciences, School of Veterinary and Biomedical Sciences, Faculty of Health Sciences, Murdoch University, Murdoch Drive, Murdoch, Western Australia 6150, Australia
| | - Jason Stayt
- Department of Veterinary Clinical Sciences, School of Veterinary and Biomedical Sciences, Faculty of Health Sciences, Murdoch University, Murdoch Drive, Murdoch, Western Australia 6150, Australia
| | - Sonia E. McGill
- Department of Veterinary Clinical Sciences, School of Veterinary and Biomedical Sciences, Faculty of Health Sciences, Murdoch University, Murdoch Drive, Murdoch, Western Australia 6150, Australia
| | - Caroline S. Mansfield
- Department of Veterinary Clinical Sciences, School of Veterinary and Biomedical Sciences, Faculty of Health Sciences, Murdoch University, Murdoch Drive, Murdoch, Western Australia 6150, Australia
| |
Collapse
|
37
|
Mansfield CS, James FE, Craven M, Davies DR, O'Hara AJ, Nicholls PK, Dogan B, MacDonough SP, Simpson KW. Remission of histiocytic ulcerative colitis in Boxer dogs correlates with eradication of invasive intramucosal Escherichia coli. J Vet Intern Med 2009; 23:964-9. [PMID: 19678891 DOI: 10.1111/j.1939-1676.2009.0363.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Historically, histiocytic ulcerative (HUC) (or granulomatous) colitis of Boxer dogs was considered an idiopathic immune-mediated disease with a poor prognosis. Recent reports of dramatic responses to enrofloxacin and the discovery of invasive Escherichia coli within the colonic mucosa of affected Boxer dogs support an infectious etiology. HYPOTHESIS Invasive E. coli is associated with colonic inflammation in Boxer dogs with HUC, and eradication of intramucosal E. coli correlates with clinical and histologic remission. ANIMALS Seven Boxer dogs with HUC. METHODS Prospective case series. Colonic biopsies were obtained at initial evaluation in 7 dogs, and in 5 dogs after treatment with enrofloxacin. Biopsies were evaluated by standardized histopathology, and fluorescence in situ hybridization (FISH) with probes to eubacteria and E. coli. RESULTS Intramucosal E. coli was present in colonic biopsies of 7/7 Boxers with HUC. Clinical response was noted in all dogs within 2 weeks of enrofloxacin (7 + or - 3.06 mg/kg q24 h, for 9.5 + or - 3.98 weeks) and was sustained in 6 dogs (median disease-free interval to date of 47 months, range 17-62). FISH was negative for E. coli in 4/5 dogs after enrofloxacin. E. coli resistant to enrofloxacin were present in the FISH-positive dog that relapsed. CONCLUSIONS AND CLINICAL RELEVANCE The correlation between clinical remission and the eradication of mucosally invasive E. coli during treatment with enrofloxacin supports the causal involvement of E. coli in the development of HUC in susceptible Boxer dogs. A poor response to enrofloxacin treatment might be due to colonization with enrofloxacin-resistant E. coli.
Collapse
Affiliation(s)
- C S Mansfield
- School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, WA 6150, Australia.
| | | | | | | | | | | | | | | | | |
Collapse
|
38
|
|
39
|
James FE, Mansfield CS, Steiner JM, Williams DA, Robertson ID. Pancreatic response in healthy dogs fed diets of various fat compositions. Am J Vet Res 2009; 70:614-8. [DOI: 10.2460/ajvr.70.5.614] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
40
|
|
41
|
James FE, Knowles GW, Mansfield CS, Robertson ID. Ascites due to pre-sinusoidal portal hypertension in dogs: a retrospective analysis of 17 cases. Aust Vet J 2008; 86:180-6. [DOI: 10.1111/j.1751-0813.2008.00284.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
42
|
Abstract
CASE HISTORY A 7-year-old, sterilised male German Shepherd dog was presented with a history of three episodes of severe haemoptysis and associated dyspnoea within a 3-week period. A generalised tonic-clonic seizure was witnessed preceding the third episode. CLINICAL FINDINGS Thoracic radiographs revealed a severe bilateral alveolar lung pattern of the caudodorsal lung fields; extension into the left cranial lung lobe was present but pulmonary vessels were within normal size limits. Frank blood was the only abnormality present at bronchoscopy. A coagulation profile, parasitological screening, thoracic and brain computed tomography (CT), and cerebrospinal fluid (CSF) cytological analysis did not identify any abnormalities. DIAGNOSIS Haemoptysis due to either severe neurogenic pulmonary oedema or rupture of the pulmonary capillaries secondary to seizures was considered a possible diagnosis. The primary generalised seizures were attributed to late-onset idiopathic epilepsy diagnosed by exclusion of other causes. CLINICAL RELEVANCE This is the first known case report describing severe haemoptysis associated with seizures in a dog.
Collapse
Affiliation(s)
- F E James
- Department of Veterinary Clinical Sciences, Murdoch University, Murdoch, WA, Australia.
| | | | | | | |
Collapse
|
43
|
Abstract
An 18-month-old boxer was presented for investigation of profound lethargy, and primary hypothyroidism was diagnosed. A strong antithyroglobulin antibody titre was also present, indicating lymphocytic (immune-mediated) thyroiditis as the cause of hypothyroidism. A concurrent protein-losing glomerulonephropathy was also detected, although the aetiology could not be determined at initial presentation. Thyroid replacement and dietary therapy were prescribed. The dog improved clinically for approximately 12 months when it was re-presented with poorly controlled hypothyroidism and renal failure. Postmortem examination confirmed the presence of lymphocytic-plasmacytic thyroiditis, in conjunction with membranoproliferative glomerulonephritis and renal failure.
Collapse
Affiliation(s)
- C S Mansfield
- Department of Small Animal Clinical Studies, Faculty of Veterinary Medicine, University College Dublin, Belfield, Ireland
| | | |
Collapse
|
44
|
Abstract
A 7-year-old neutered male Somali cat, bred in Western Australia, was presented for investigation of jaundice and severe anaemia. Splenomegaly and hepatomegaly were evident on physical examination. Severe anaemia, along with leukopenia and increased liver enzymes, were present on laboratory evaluation. Clinical investigation identified cholangitis and treatment for this resolved the jaundice but failed to resolve the anaemia. Treatment for Mycoplamsa haemofelis was administered concurrently. Genetic testing was then performed and pyruvate kinase deficiency was identified, the first time this has been reported in an Australian cat. Treatment with immunosuppressive medication was not successful.
Collapse
Affiliation(s)
- C S Mansfield
- School of Veterinary and Biomedical Sciences, Division of Health Sciences, Murdoch University, South Street, Murdoch Western Australia 6150
| | | |
Collapse
|
45
|
Abstract
An eight-year-old, female springer spaniel was treated for metastatic insulinoma with a single intravenous dose of 500 mg/m2 streptozotocin (SZN), and pre- and post-treatment diuresis. A tapering dose of corticosteroids was also administered over a 28 day period. SZN and corticosteroid administration resulted in resolution of hypoglycaemia and subsequent development of diabetes mellitus. Further metastases caused cervical spinal pain and the dog was euthanased 118 days after SZN administration. SZN can be safely used for the treatment of canine insulinoma, but, when compared with other published cases, a marked variation in clinical response to this drug exists and further study is warranted.
Collapse
Affiliation(s)
- R Bell
- Department of Small Animal Clinical Studies, University of Glasgow Veterinary School, Bearsden, Glasgow G61 1QH
| | | | | | | |
Collapse
|
46
|
Abstract
The objective of this study was to determine whether laboratory testing currently available is able to provide prognostic information in canine pancreatitis. A prospective study of dogs with naturally occurring pancreatitis was undertaken. Twenty-two cases with histologically confirmed pancreatic inflammation were included in the study. Each dog had routine haematology parameters, serum biochemistry (including lipase and amylase), serum trypsin-like immunoreactivity and trypsinogen activation peptides (TAP) in urine and plasma measured. Twelve of the dogs were classified as having severe disease. These dogs had statistically significant increases in urinary TAP-creatinine ratio (UTCR) measurement, serum lipase, serum phosphate and serum creatinine concentrations. Additionally dogs with severe pancreatitis had significantly decreased urine specific gravity levels. The most sensitive and specific test to assess the severity of pancreatitis was the measurement of UTCR.
Collapse
Affiliation(s)
- Caroline S Mansfield
- Department of Small Animal Clinical Studies, Faculty of Veterinary Medicine, Shelbourne Road, Ballsbridge, Dublin 4, Ireland.
| | | | | |
Collapse
|
47
|
Mansfield CS, Jones BR. Review of feline pancreatitis part one: the normal feline pancreas, the pathophysiology, classification, prevalence and aetiologies of pancreatitis. J Feline Med Surg 2001; 3:117-24. [PMID: 11876628 DOI: 10.1053/jfms.2001.0129] [Citation(s) in RCA: 21] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The cellular mechanisms involved once pancreatitis has been initiated are reasonably well understood. The events leading up to this process are less well established. Much of our current understanding of pancreatitis in cats has been determined from experiments in cats or extrapolated from other species. The normal anatomy and function of the pancreas and a review of the current state of knowledge about the pathophysiology of pancreatitis is discussed. The current prevalence of feline pancreatitis is unknown, but the disease is being reported with increasing frequency. The aetiology of pancreatitis and the types of pancreatic inflammation present in cats is different from other species, such as the dog, a species where the disease is considered more common. Concurrent diseases are often present that may be more serious than the pancreatic inflammation and the treatment of these diseases is often complicated by pancreatitis.
Collapse
Affiliation(s)
- C S Mansfield
- Department of Small Animal Clinical Studies, Faculty of Veterinary Medicine, University College Dublin, Shelbourne Road, Ballsbridge, Dublin 4, Republic of Ireland
| | | |
Collapse
|
48
|
Abstract
In the past decade pancreatitis has become recognised as a significant disease in the cat. Chronic, mild pancreatitis is often associated with more commonly diagnosed diseases such as inflammatory bowel disease or cholangitis/cholangiohepatitis. Furthermore, acute pancreatitis with similar complications to those seen in dogs is now diagnosed more frequently in cats. Unfortunately, the clinical signs and clinicopathological findings in cats with pancreatitis are often non-specific and vague. The lack of specific signs often results in a diagnosis being made only when the veterinary surgeon has a strong index of suspicion for pancreatitis and vigorously pursues that diagnosis. Pancreatitis is an important disease in cats, has been implicated as a potential cause of diabetes mellitus, and when present complicates the treatment of diabetes and other intra-abdominal diseases in cats.
Collapse
Affiliation(s)
- C S Mansfield
- Department of Small Animal Clinical Studies, Faculty of Veterinary Medicine, University College Dublin, Shelbourne Road, Ballsbridge, Dublin 4, Republic of Ireland
| | | |
Collapse
|
49
|
Abstract
A six-year-old Staffordshire bull terrier had a four-week history of progressive lethargy, ascites and exercise intolerance. A mass 3 cm in diameter obliterating the right atrial lumen was detected by echocardiographic examination. There were lactescent pericardial and serosanguineous pleural effusions. Histological and immunochemical examinations showed that the mass was a primary rhabdomyoma.
Collapse
Affiliation(s)
- C S Mansfield
- Department of Small Animal Clinical Studies, Faculty of Veterinary Medicine, University College Dublin, Ballsbridge, Ireland
| | | | | |
Collapse
|
50
|
Abstract
OBJECTIVE To determine the specificity and sensitivity of plasma and urinary trypsinogen activation peptide (TAP) concentrations in diagnosing pancreatitis in dogs. DESIGN Retrospective analysis of clinical cases. PROCEDURE Dogs were classified into three groups: healthy animals, dogs with confirmed pancreatitis and dogs with nonpancreatic disease, which clinically or biochemically resembled pancreatitis. This last group was further subdivided into dogs with renal and those with nonrenal disease. The plasma and urinary TAP concentration was determined by a competitive enzyme immunoassay. Clinical cases additionally had serum trypsin-like immunoreactivity concentration measured, as well as radiography and ultrasound of the abdomen and further diagnostic procedures. Nonparametric analysis of variance (Kruskal-Wallis test) was performed using Statistix 4.0 program. RESULTS There was a wide range of urinary TAP concentration in healthy dogs (mean 52.30 nmol/L, standard deviation 55.25) that made interpretation of urinary TAP concentrations difficult in the other groups. There was a narrow reference range for plasma TAP (mean 2.67 nmol/L, standard deviation 0.93). Plasma and urinary TAP concentrations, as well as urinary TAP to creatinine ratio, were all increased in dogs that died with necrotising pancreatitis. Values were not increased in mild, interstitial pancreatitis. Increased plasma TAP concentrations were also present in dogs with severe renal disease. CONCLUSION Plasma TAP concentration is a good prognostic indicator in naturally occurring pancreatitis in dogs. The failure of TAP to increase in mild pancreatitis, and the increase present in severe renal disease, suggests its measurement has limited application as a sole diagnostic tool for canine pancreatitis. Further investigations are required in order to explain the large variability of urinary TAP concentration and the presence of circulating TAP in healthy dogs.
Collapse
Affiliation(s)
- C S Mansfield
- Department of Small Animal Clinical Studies, Faculty of Veterinary Medicine, Ballsbridge, Dublin, Ireland
| | | |
Collapse
|