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inflammatory bowel disease dog

Atiyeh Peiravan, Karin Allenspach, Alisdair M Boag, Francesca Soutter, Angela Holder, Brian Catchpole, Lorna J Kennedy, Dirk Werling, Fabio Procoli
German shepherd dogs (GSD) in the UK are at increased risk of developing the Inflammatory Bowel Disaese (IBD). IBD is believed to be a multifactorial immune mediated disease affecting genetically predisposed dogs. The aim of the current study was to investigate whether susceptibility to IBD in GSD is associated with the major histocompatibility complex (MHC) class II locus (Dog Leukocyte Antigen, DLA). Sequence-based genotyping of the three polymorphic DLA genes DLA-DRB1, -DQA1 and -DQB1 was performed in 56 GSDs affected by IBD and in 50 breed-matched controls without any history of gastrointestinal signs...
December 2016: Veterinary Immunology and Immunopathology
J R S Dandrieux
The aim of this review is to discuss why "chronic enteropathy" might be a better term than "inflammatory bowel disease" in dogs, because the treatment and outcome of the disease is very different from that of inflammatory bowel disease in humans. The effect of food, antibiotics and immunosuppressant drugs on chronic enteropathy will be reviewed. New treatments under investigation will also be introduced. Although there are several studies evaluating treatment of chronic enteropathy in dogs, the quality and quantity of evidence supporting individual therapies remains scarce and more work is needed to improve management of this disease...
October 16, 2016: Journal of Small Animal Practice
Camila Peres Rubio, Josefa Hernández-Ruiz, Silvia Martinez-Subiela, Asta Tvarijonaviciute, Marino Bañón Arnao, José Joaquín Ceron
We performed analytical validation of 3 automated assays of the total antioxidant capacity (TAC) in canine serum and evaluated their use in dogs with inflammatory bowel disease. The assays were based on the generation of a 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) radical cation (ABTS•(+)) in aqueous media, which produces a blue-green color. The antioxidants present in the sample remove the chromogen in proportion to their concentrations. The assays differed mainly in the way in which this radical was produced...
November 2016: Journal of Veterinary Diagnostic Investigation
Yoshiki Vázquez-Baeza, Embriette R Hyde, Jan S Suchodolski, Rob Knight
Inflammatory bowel disease (IBD) is an autoimmune condition that is difficult to diagnose, and animal models of this disease have questionable human relevance(1). Here, we show that the dysbiosis network underlying IBD in dogs differs from that in humans, with some bacteria such as Fusobacterium switching roles between the two species (as Bacteroides fragilis switches roles between humans and mice)(2). For example, a dysbiosis index trained on humans fails when applied to dogs, but a dog-specific dysbiosis index achieves high correlations with the overall dog microbial community diversity patterns...
October 3, 2016: Nature Microbiology
Jessica M Izzi, Sarah E Beck, Robert J Adams, Kelly A Metcalf Pate, Eric K Hutchinson
Chronic diarrhea poses a significant threat to the health of NHP research colonies, and its primary etiology remains unclear. In macaques, the clinical presentation of intractable diarrhea and weight loss that are accompanied by inflammatory infiltrates within the gastrointestinal tract closely resembles inflammatory bowel disease of humans, dogs, and cats, in which low serum and tissue cobalamin (vitamin B12) levels are due to intestinal malabsorption. We therefore hypothesized that macaques with chronic idiopathic diarrhea (CID) have lower serum cobalamin concentrations than do healthy macaques...
2016: Comparative Medicine
Teresa Gazzotti, Andrea Barbarossa, Elisa Zironi, Paola Roncada, Marco Pietra, Giampiero Pagliuca
Although budesonide is frequently used in veterinary medicine for the treatment of canine respiratory and bowel inflammatory diseases, knowledge is lacking regarding its kinetics in this species. We developed and validated a liquid chromatography-tandem mass spectrometry method for the determination of budesonide and its metabolite 16α-hydroxyprednisolone in dog plasma. The analytes were extracted by solid phase extraction and analysis was performed by high performance liquid chromatography-tandem mass spectrometry, with positive electrospray ionization...
2016: MethodsX
Camila Peres Rubio, Asta Tvarijonaviciute, Silvia Martinez-Subiela, Josefa Hernández-Ruiz, José Joaquin Cerón
BACKGROUND: The objective of the present study was to optimize and validate an automated method to assess the total antioxidant capacity (TAC) in serum of dogs using the cupric reducing antioxidant capacity (CUPRAC) methodology (TACc) with bathocuproinedisulfonic acid disodium salt as chelating agent, evaluating also possible variations due to the use of two different automated analyzers. The method is based on the reduction of Cu(2+) into Cu(1+) by the action of the non-enzymatic antioxidants that are present in the sample...
2016: BMC Veterinary Research
A Lecoindre, P Lecoindre, J L Cadoré, M Chevallier, S Guerret, G Derré, S P Mcdonough, K W Simpson
OBJECTIVES: To describe the clinical and pathological features of canine focal lipogranulomatous lymphangitis, to evaluate its underlying infectious cause and to compare it with human Crohn's disease. METHODS: Retrospective review of case records with a histopathological diagnosis of focal lipogranulomatous lymphangitis. Bacterial and fungal colonisation was evaluated using fluorescence in situ hybridisation and histochemical staining, respectively. A comparison with Crohn's disease was performed by a human pathologist...
September 2016: Journal of Small Animal Practice
Jia Xu, Adronie Verbrugghe, Marta Lourenço, Geert P J Janssens, Daisy J X Liu, Tom Van de Wiele, Venessa Eeckhaut, Filip Van Immerseel, Isabel Van de Maele, Yufeng Niu, Guido Bosch, Greet Junius, Brigitte Wuyts, Myriam Hesta
BACKGROUND: Inflammatory bowel disease (IBD) refers to a diverse group of chronic gastrointestinal diseases, and gut microbial dysbiosis has been proposed as a modulating factor in its pathogenesis. Several studies have investigated the gut microbial ecology of dogs with IBD but it is yet unclear if this microbial profile can alter the nutrient metabolism of the host. The aim of the present study was to characterize the faecal bacterial profile and functionality as well as to determine host metabolic changes in IBD dogs...
2016: BMC Veterinary Research
B C Guard, J S Suchodolski
Recent molecular studies have revealed a complex microbiota in the dog intestine. Convincing evidence has been reported linking changes in microbial communities to acute and chronic gastrointestinal inflammation, especially in canine inflammatory bowel disease (IBD). The most common microbial changes observed in intestinal inflammation are decreases in the bacterial phyla Firmicutes (i.e., Lachnospiraceae, Ruminococcaceae, and ) and Bacteroidetes, with concurrent increases in Proteobacteria (i.e., ). Due to the important role of microbial-derived metabolites for host health, it is important to elucidate the metabolic consequences of gastrointestinal dysbiosis and physiological pathways implicated in specific disease phenotypes...
June 2016: Journal of Animal Science
Kimberly A Loyd, Christine G Cocayne, Julie M Cridland, Wayne R Hause
OBJECTIVE: To describe the administration of 25% human serum albumin (HSA) to dogs diagnosed with idiopathic inflammatory bowel disease (IBD) and protein-losing enteropathy (PLE). The secondary objectives were to report any acute and delayed adverse events and the effect of corticosteroids on the development of these reactions. DESIGN: Retrospective study (2003-2013). SETTING: Private referral hospital. ANIMALS: Twenty-one client owned dogs diagnosed with PLE and idiopathic IBD that received ≥ 1 transfusion of 25% HSA...
July 2016: Journal of Veterinary Emergency and Critical Care
A Rychlik, A Kołodziejska-Sawerska, M Nowicki, M Szweda
This study evaluates the efficacy of budesonide in the treatment of inflammatory bowel disease (IBD) in dogs based on the results of clinical, endoscopic and histopathological examinations. The severity of clinical symptoms was assessed based on CIBDAI scores, and macroscopic and histopathological changes were described in accordance with the recommendations of the WSAVA Gastrointestinal Standardization Group for 2008. The results of the experiment revealed that budesonide does not offer effective treatment for canine IBD...
2016: Polish Journal of Veterinary Sciences
Andrew M Hoffman, Steven W Dow
Studies to evaluate the therapeutic potential of stem cells in humans would benefit from more realistic animal models. In veterinary medicine, companion animals naturally develop many diseases that resemble human conditions, therefore, representing a novel source of preclinical models. To understand how companion animal disease models are being studied for this purpose, we reviewed the literature between 2008 and 2015 for reports on stem cell therapies in dogs and cats, excluding laboratory animals, induced disease models, cancer, and case reports...
July 2016: Stem Cells
Romy M Heilmann, Maria Volkmann, Cristiane C Otoni, Niels Grützner, Barbara Kohn, Albert E Jergens, Jörg M Steiner
S100A12 is a potential biomarker of gastrointestinal inflammation in dogs and fecal S100A12 concentrations are correlated with disease severity and outcome. The aim of the present study was to investigate whether there was any association between pre-treatment fecal S100A12 concentrations in dogs affected with chronic enteropathy (CE) and the response to treatment. Dogs affected with CE were recruited into the study and were classified as antibiotic-responsive diarrhea (ARD; n = 9), food-responsive diarrhea (FRD; n = 30) or idiopathic inflammatory bowel disease (IBD; n = 25)...
September 2016: Veterinary Journal
Rossella Terragni, Antonio M Morselli-Labate, Massimo Vignoli, Enrico Bottero, Barbara Brunetti, Jimmy H Saunders
CONTEXT: An increase in enzyme lactate dehydrogenase (LDH) in serum is a negative prognostic factor for survival in cats affected by lymphoma. Measuring LDH at the time of diagnosis has been studied for differentiating neoplastic disease from non-neoplastic disease in dogs. Inflammatory bowel disease (IBD) and alimentary lymphoma are common diseases in cats. OBJECTIVE: The aim of this study was to determine whether elevation of total LDH occurred in cats with alimentary lymphoma and non-neoplastic gastrointestinal disease, such as IBD, and to evaluate whether this enzyme is useful in supporting the differential diagnosis of these specific diseases...
2016: PloS One
Sergi Segarra, Silvia Martínez-Subiela, Marta Cerdà-Cuéllar, Daniel Martínez-Puig, Alberto Muñoz-Prieto, Fernando Rodríguez-Franco, Antonio Rodríguez-Bertos, Karin Allenspach, Alfonso Velasco, José Cerón
BACKGROUND: Canine inflammatory bowel disease (IBD) is a chronic enteropathy of unknown etiology, although microbiome dysbiosis, genetic susceptibility, and dietary and/or environmental factors are hypothesized to be involved in its pathogenesis. Since some of the current therapies are associated with severe side effects, novel therapeutic modalities are needed. A new oral supplement for long-term management of canine IBD containing chondroitin sulfate (CS) and prebiotics (resistant starch, β-glucans and mannaoligosaccharides) was developed to target intestinal inflammation and oxidative stress, and restore normobiosis, without exhibiting any side effects...
2016: BMC Veterinary Research
Chenshu Xu, Min Huang, Huichang Bi
The pregnane X receptor (PXR) and constitutive androstane receptor (CAR) are two members of the nuclear receptor superfamily that regulate a broad range of genes involved in drug metabolism and transport. A variety of naturally occurring compounds present in herbal medicines were identified as ligands of PXR and CAR. Recently, accumulative evidences have revealed the PXR- and CAR-mediated herbal effect against multiple human diseases, including inflammatory bowel disease (IBD), cholestatic liver disease, and jaundice...
September 2016: Biochimica et Biophysica Acta
A Kol, N J Walker, M Nordstrom, D L Borjesson
Detrimental Th17 driven inflammatory and autoimmune disease such as Crohn's disease, graft versus host disease and multiple sclerosis remain a significant cause of morbidity and mortality worldwide. Multipotent stromal/stem cell (MSC) inhibit Th17 polarization and activation in vitro and in rodent models. As such, MSC based therapeutic approaches are being investigated as novel therapeutic approaches to treat Th17 driven diseases in humans. The significance of naturally occurring diseases in dogs is increasingly recognized as a realistic platform to conduct pre-clinical testing of novel therapeutics...
2016: PloS One
U Schwittlick, J Junginger, K Hahn, A Habierski, M Hewicker-Trautwein
Histamine is an important mediator of many physiological processes including gastrointestinal function that acts via four different histamine receptors (H1R to H4R). Elevated histamine levels and increased HR messenger ribonucleic acid (mRNA) have been shown in humans with gastrointestinal disorders such as irritable bowel syndrome or allergic intestinal diseases. As there is limited knowledge concerning the distribution of histamine receptors (HR) in dogs, one aim of this study was to investigate the expression of histamine 1 receptor (H1R), histamine 2 receptor (H2R) and histamine 4 receptor (H4R) in the canine gastrointestinal tract at protein level using immunohistochemistry...
February 11, 2016: Anatomia, Histologia, Embryologia
Eric Cassmann, Robin White, Todd Atherly, Chong Wang, Yaxuan Sun, Samir Khoda, Curtis Mosher, Mark Ackermann, Albert Jergens
BACKGROUND: The intestinal microbiota is increasingly linked to the pathogenesis of chronic enteropathies (CE) in dogs. While imbalances in duodenal and fecal microbial communities have been associated with mucosal inflammation, relatively little is known about alterations in mucosal bacteria seen with CE involving the ileum and colon. AIM: To investigate the composition and spatial organization of mucosal microbiota in dogs with CE and controls. METHODS: Tissue sections from endoscopic biopsies of the ileum and colon from 19 dogs with inflammatory bowel disease (IBD), 6 dogs with granulomatous colitis (GC), 12 dogs with intestinal neoplasia, and 15 controls were studied by fluorescence in situ hybridization (FISH) on a quantifiable basis...
2016: PloS One
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