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Agulla B, Villaescusa A, Sainz Á, Díaz‐Regañón D, Rodríguez‐Franco F, Calleja‐Bueno L, Olmeda P, García‐Sancho M. Peripheral and intestinal T lymphocyte subsets in dogs with chronic inflammatory enteropathy. J Vet Intern Med 2024; 38:1437-1448. [PMID: 38472110 PMCID: PMC11099799 DOI: 10.1111/jvim.17036] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Dysregulated T lymphocyte response is thought to play a key role in chronic intestinal inflammation (CIE). OBJECTIVES To evaluate the presence of changes in peripheral and intestinal T lymphocyte subsets and to describe potential immune and inflammatory biomarkers in dogs with CIE. ANIMALS Sixteen healthy dogs and 26 dogs were diagnosed with CIE. METHODS Prospective case-control study evaluating peripheral and intestinal T lymphocytes using flow cytometry and inflammatory markers obtained from complete blood cell counts. RESULTS Dogs with CIE had higher peripheral activated T helper (Th) lymphocytes (87/μL [18-273] CIE, 44/μL [16-162] healthy control (HC, P = .013) and regulatory T cells (Treg; 108/μL [2-257] CIE, 34/μL [1-114] HC, P = .004). In the intestinal epithelium, CIE dogs presented lower percentages of Th (4.55% [1.75-18.67] CIE, 8.77% [3.79-25.03] HC, P = .002), activated Th cells (0.16% [0.02-0.83] CIE, 0.33% [0.05-0.57] HC, P = .03) and CD4/CD8 ratio (0.08 [0.02-0.39] CIE, 0.21 [0.07-0.85] HC, P = .003). Conversely, higher percentage of activated T cytotoxic cells (20.24% [3.12-77.12] CIE, 12.32% [1.21-39.22] HC, P = .04) and interferon-gamma (IFN-γ) producing T lymphocytes (7.36% [0.63-55.83] CIE, 1.44% [0.00-10.56] HC, P = .01) within the epithelium was observed. In the lamina propria the percentage of Treg lymphocytes was higher (6.02% [1.00-21.48] CIE, 3.52% [0.18-10.52] HC, P = .02). CONCLUSIONS AND CLINICAL IMPORTANCE Systemic and intestinal immune alterations occur in dogs with CIE suggesting that blood IFN-γ producing T lymphocytes and the systemic immune-inflamation index (SII) could potentially serve as biomarkers for the disease.
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Affiliation(s)
- Beatriz Agulla
- Department Medicina i Cirurgia Animals, Facultat de VeterinàriaUniversitat Autònoma de BarcelonaBarcelonaSpain
| | - Alejandra Villaescusa
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - Ángel Sainz
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - David Díaz‐Regañón
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - Fernando Rodríguez‐Franco
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - Lydia Calleja‐Bueno
- Facultad de VeterinariaUniversidad Alfonso X El Sabio (UAX), Avenida de la Universidad 1MadridSpain
| | - Patricia Olmeda
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
| | - Mercedes García‐Sancho
- Department of Animal Medicine and Surgery, College of Veterinary MedicineComplutense University of MadridMadridSpain
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Dor C, Nixon S, Salavati Schmitz S, Bazelle J, Černá P, Kilpatrick S, Harvey ND, Dunning M. Efficacy and tolerance of oral versus parenteral cyanocobalamin supplement in hypocobalaminaemic dogs with chronic enteropathy: a controlled randomised open-label trial. J Small Anim Pract 2024; 65:317-328. [PMID: 38354724 DOI: 10.1111/jsap.13705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 12/20/2023] [Accepted: 01/01/2024] [Indexed: 02/16/2024]
Abstract
OBJECTIVES Determine comparative tolerance of daily oral and weekly parenteral cobalamin supplementation, in hypocobalaminaemic dogs with chronic enteropathy. Determine whether oral is as effective as parenteral supplementation at achieving eucobalaminaemia, in hypocobalaminaemic dogs with protein-losing enteropathy, severe hypocobalaminaemia or high canine inflammatory bowel disease activity index at inclusion. MATERIALS AND METHODS Thirty-seven client-owned dogs with hypocobalaminaemia and clinical signs of chronic enteropathy were prospectively enrolled in three UK referral centres. Dogs were randomly allocated to daily oral for 12 weeks or weekly parenteral cobalamin supplementation for 6 weeks and one additional dose 4 weeks later. Serum cobalamin, body condition score, canine inflammatory bowel disease activity index and bodyweight were assessed at inclusion, weeks 7 and 13. Serum methylmalonic acid concentration was evaluated at inclusion and at week 13. Owners completed treatment adherence, palatability, tolerance and satisfaction questionnaires at week 13. RESULTS Nineteen dogs completed the study. All dogs orally supplemented achieved normal or increased cobalaminaemia at weeks 7 and 13. There was no statistical difference in cobalamin concentration at week 13 in dogs treated with oral or parenteral supplementation, regardless of presence of protein-losing enteropathy, severity of hypocobalaminaemia or canine inflammatory bowel disease activity index at inclusion. Serum methylmalonic acid concentration was not significantly different between oral and parenteral groups, neither were treatment adherence, satisfaction, and tolerance scores at week 13. CLINICAL SIGNIFICANCE Oral is as effective and as well-tolerated as parenteral cobalamin supplementation in hypocobalaminaemic dogs with chronic enteropathy and severe clinical or biochemical phenotypes, and should be considered as a suitable treatment option regardless of disease severity.
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Affiliation(s)
- C Dor
- Department of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK
| | - S Nixon
- ADM Protexin Ltd, Lopen Head, Somerset, UK
| | - S Salavati Schmitz
- The Royal (Dick) School of Veterinary Studies and the Roslin Institute, The Hospital for Small Animals, University of Edinburgh, Edinburgh, UK
| | - J Bazelle
- Davies Veterinary Specialists, Manor Farm Business Park, Hitchin, Hertfordshire, UK
| | - P Černá
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - S Kilpatrick
- Idexx Laboratories, Grange House, Sandbeck Way, Wetherby, West Yorkshire, UK
| | - N D Harvey
- Department of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK
| | - M Dunning
- Department of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK
- Willows Veterinary Centre and Referral Service, Solihull, West Midlands, UK
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Cristóbal JI, Duque FJ, Usón-Casaús J, Martínez MS, Míguez MP, Pérez-Merino EM. Oxidative stress in dogs with chronic inflammatory enteropathy treated with allogeneic mesenchymal stem cells. Vet Res Commun 2024; 48:901-910. [PMID: 38012473 PMCID: PMC10998773 DOI: 10.1007/s11259-023-10265-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/22/2023] [Indexed: 11/29/2023]
Abstract
The search for new biomarkers in patients with chronic inflammatory enteropathy (CIE) is ongoing in the human and veterinary medicine fields. Oxidative stress biomarkers (malondialdehyde [MDA], reduced glutathione [GSH], and albumin) have been studied in humans with chronic enteropathies, but among them, only albumin has been studied in dogs with CIE. Moreover, the effect of mesenchymal stem cell (MSCs) treatment with or without prednisone on these parameters has never been studied in dogs with CIE. These parameters were compared between healthy dogs (n = 12) and dogs with CIE, and before and 1, 3, 6, and 12 months after the treatment with MSCs alone (n = 9) or together with prednisone (n = 11). The relationship between the Canine Inflammatory Bowel Disease Activity Index (CIBDAI) and oxidative stress was evaluated. Albumin was the only parameter that significantly differed between dogs with CIE and healthy dogs (p = 0,037). Differences were observed only in albumin values after combined treatment with MSCs and prednisone. No differences were observed in MDA and GSH after treatment with MSCs with or without prednisone. Albumin could help stage canine CIE, as well as its prognosis, as has already been demonstrated, although it is essential to evaluate this parameter for its antioxidant capacity, and therefore it could be a good biomarker of oxidative stress in this pathology. However, the treatment with MSCs seems unable to modify any of the analyzed oxidative stress parameters.
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Affiliation(s)
- José Ignacio Cristóbal
- Departamento de Medicina Animal, Unidad de Cirugía, Facultad de Veterinaria, Universidad de Extremadura, Veterinaria UEx. Avenida de La Universidad S/N, 10003, Cáceres, Spain
| | - Francisco Javier Duque
- Departamento de Medicina Animal, Unidad de Cirugía, Facultad de Veterinaria, Universidad de Extremadura, Veterinaria UEx. Avenida de La Universidad S/N, 10003, Cáceres, Spain
| | - Jesús Usón-Casaús
- Departamento de Medicina Animal, Unidad de Cirugía, Facultad de Veterinaria, Universidad de Extremadura, Veterinaria UEx. Avenida de La Universidad S/N, 10003, Cáceres, Spain
| | - María Salomé Martínez
- Unidad de Toxicología, Facultad de Veterinaria, Universidad de Extremadura, 10003, Cáceres, Spain
| | - María Prado Míguez
- Unidad de Toxicología, Facultad de Veterinaria, Universidad de Extremadura, 10003, Cáceres, Spain
| | - Eva María Pérez-Merino
- Departamento de Medicina Animal, Unidad de Cirugía, Facultad de Veterinaria, Universidad de Extremadura, Veterinaria UEx. Avenida de La Universidad S/N, 10003, Cáceres, Spain.
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Maggiar A, Andréjak-Bénit J, Miclard J, Sarran D, Billet JP. Intestinal full-thickness needle-core biopsy via laparotomy is safe, rapid, and effective and less invasive than standard incisional biopsy in dogs and cats. J Am Vet Med Assoc 2024; 262:1-7. [PMID: 38064898 DOI: 10.2460/javma.23.09.0521] [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: 09/24/2023] [Accepted: 11/04/2023] [Indexed: 01/21/2024]
Abstract
OBJECTIVE To describe the intestinal full-thickness needle-core biopsy technique via abdominal laparotomy outcomes and compare the histopathological and immunohistochemical diagnosis with standard incisional intestinal biopsy technique in dogs and cats. ANIMALS 3 dogs and 17 cats. METHODS Client-owned dogs and cats were prospectively enrolled if intestinal full-thickness biopsies were indicated for the diagnosis of diffuse chronic intestinal diseases following ultrasonography. The study period extended from June 2021 to December 2022. All animals underwent intestinal biopsies with both techniques (needle-core biopsy and standard incisional biopsy) via abdominal laparotomy. Data collected included clinical signs, biopsy collection times, complications, and histopathologic and immunohistochemical findings. A minimum follow-up of 14 days was required. RESULTS The main clinical sign at presentation was chronic vomiting (65%). Mean needle-core biopsy collection time (262 seconds) was significantly shorter than standard incisional biopsy collection time (599 seconds; P < .000001). The incidence of minor complications was 10% (inflammation of the skin surgical site secondary to licking). One catastrophic complication occurred on a standard incisional biopsy site in 1 cat in a context of bile peritonitis (5% of all cases). There were no complications associated with the needle-core biopsy. All but 1 cat were discharged, with a median of 2 days (range, 1 to 4 days) after surgery. The diagnoses resulting from both techniques were 100% concordant for the distinction between inflammatory bowel disease and intestinal lymphoma via histopathology and immunochemistry. CLINICAL RELEVANCE Needle-core biopsy is safe, rapid, and effective and is less invasive than standard incisional biopsy.
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Affiliation(s)
- Adrien Maggiar
- 1Centre Hospitalier Vétérinaire Atlantia, Nantes, France
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Teshima T. Heterogeneity of mesenchymal stem cells as a limiting factor in their clinical application to inflammatory bowel disease in dogs and cats. Vet J 2024; 304:106090. [PMID: 38417670 DOI: 10.1016/j.tvjl.2024.106090] [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: 10/28/2023] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/01/2024]
Abstract
Inflammatory bowel disease (IBD) is a major subtype of chronic enteropathies in dogs and cats. Conventional drugs such as immunomodulatory medicines as glucocorticoids and/or other anti-inflammatory are mainly applied for treatment. However, these drugs are not always effective to maintain remission from IBD and are limited by unacceptable side effects. Hence, more effective and safe therapeutic options need to be developed. Mesenchymal stem cells (MSCs) are multipotent stem cells with a self-renewal capacity, and have immunomodulatory, anti-inflammatory, anti-fibrotic, and tissue repair properties. Therefore, the application of MSCs as an alternative therapy for IBD has great potential in veterinary medicine. The efficacy of adipose tissue-derived MSC (ADSC) therapy for IBD in dogs and cats has been reported, including numerous studies in animal models. However, treatment outcomes in clinical trials of human IBD patients have not been consistent with preclinical studies. MSC-based therapy for various diseases has received widespread attention, but various problems in such therapy remain, among which no consensus has been reached on the preparation and treatment procedures for MSCs, and cellular heterogeneity of MSCs may be an issue. This review describes the current status of ADSC therapy for canine and feline IBD and summarizes the cellular heterogeneity of canine ADSCs, to highlight the necessity for further reduction or elimination of MSCs heterogeneity and standardization of MSC-based therapies.
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Affiliation(s)
- Takahiro Teshima
- Laboratory of Veterinary Internal Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Japan; Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan.
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Ii T, Chambers JK, Nakashima K, Goto-Koshino Y, Uchida K. Application of automated machine learning for histological evaluation of feline endoscopic samples. J Vet Med Sci 2024; 86:160-167. [PMID: 38104975 PMCID: PMC10898981 DOI: 10.1292/jvms.23-0299] [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] [Indexed: 12/19/2023] Open
Abstract
Differentiating intestinal T-cell lymphoma from chronic enteropathy (CE) in endoscopic samples is often challenging. In the present study, automated machine learning systems were developed to distinguish between the two diseases, predict clonality, and detect prognostic factors of intestinal lymphoma in cats. Four models were created for four experimental conditions: experiment 1 to distinguish between intestinal T-cell lymphoma and CE; experiment 2 to distinguish large cell lymphoma, small cell lymphoma, and CE; experiment 3 to distinguish granzyme B+ lymphoma, granzyme B- lymphoma, and CE; and experiment 4 to distinguish between T-cell receptor (TCR) clonal population and TCR polyclonal population. After each experiment, a pathologist reviewed the test images and scored for lymphocytic infiltration, epitheliotropism, and epithelial injury. The models of experiments 1-4 achieved area under the receiver operating characteristic curve scores of 0.943 (precision, 87.59%; recall, 87.59%), 0.962 (precision, 86.30%; recall, 86.30%), 0.904 (precision, 82.86%; recall, 80%), and 0.904 (precision, 81.25%; recall, 81.25%), respectively. The images predicted as intestinal T-cell lymphoma showed significant infiltration of lymphocytes and epitheliotropism than CE. These models can provide evaluation tools to assist pathologists with differentiating between intestinal T-cell lymphoma and CE.
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Affiliation(s)
- Tatsuhito Ii
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - James K Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ko Nakashima
- Japan Small Animal Medical Center (JSAMC), Saitama, Japan
| | - Yuko Goto-Koshino
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Marcinczyk M, Songsasen N, Hammond EE, DeCesare G, Rodden M, McAloose D. A RETROSPECTIVE STUDY OF DISEASE PROCESSES IN MANED WOLVES ( CHRYSOCYON BRACHYURUS) IN NORTH AMERICAN ZOOLOGICAL INSTITUTIONS WITH EMPHASIS ON UROLITHIASIS, INFLAMMATORY BOWEL DISEASE, AND NEOPLASIA. J Zoo Wildl Med 2024; 54:681-691. [PMID: 38251991 DOI: 10.1638/2023-0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2023] [Indexed: 01/23/2024] Open
Abstract
The objective of this retrospective study is to summarize causes of disease and mortality in maned wolves (Chrysocyon brachyurus) in the North American Species Survival Plan Program (SSP) population. This information will inform and enhance animal health, husbandry, and conservation efforts. Pathology reports were requested from all zoological institutions housing maned wolves between 1930 and 2021. Data were reviewed and cause of death (COD) and reported diseases were summarized and compared by age group, organ system and disease process. One hundred and seventy-one wolves, 82 females and 89 males, met the inclusion criteria. The majority were geriatric (>11 yr; n = 96) or adult (2-11 yr; n = 67). Noninfectious diseases were the most common COD by process (n = 94; 54.9%). For COD by organ system, diseases of the digestive (n = 41) and urinary (n = 34) systems were most common. Neoplasia was the most common noninfectious COD and was the primary COD in 37 wolves (21.6% overall; 39.4% of noninfectious diseases). A total of 145 benign (n = 72) and malignant (n = 73) neoplasms were diagnosed in 44 individuals. Dysgerminoma was the most commonly reported tumor (n = 18), and was the most common neoplastic COD (n = 8). Cystinuria or urolithiasis (n = 71) and gastritis, enteritis, enterocolitis, or colitis (n = 50) (overall and grouped in each system due to presumed common underlying cause) were also common but were more often reported as comorbidities than as COD (n = 16 and n = 11, respectively). Infectious COD were reported in 17 wolves and included babesiosis (n = 4), acanthocephalans (n = 2), and one viral infection. Infections with a variety of bacteria in different organ systems were a COD in eight wolves.
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Affiliation(s)
| | | | | | | | - Melissa Rodden
- Smithsonian Conservation Biology Institute, Front Royal, VA 22630, USA
| | - Denise McAloose
- Wildlife Conservation Society, Zoological Health Program, Bronx, NY 10460, USA,
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Pratscher B, Kuropka B, Csukovich G, Doulidis PG, Spirk K, Kramer N, Freund P, Rodríguez-Rojas A, Burgener IA. Traces of Canine Inflammatory Bowel Disease Reflected by Intestinal Organoids. Int J Mol Sci 2024; 25:576. [PMID: 38203746 PMCID: PMC10778911 DOI: 10.3390/ijms25010576] [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: 10/11/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 01/12/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory condition that affects humans and several domestic animal species, including cats and dogs. In this study, we have analyzed duodenal organoids derived from canine IBD patients using quantitative proteomics. Our objective was to investigate whether these organoids show phenotypic traits of the disease compared with control organoids obtained from healthy donors. To this aim, IBD and control organoids were subjected to quantitative proteomics analysis via liquid chromatography-mass spectrometry. The obtained data revealed notable differences between the two groups. The IBD organoids exhibited several alterations at the levels of multiple proteins that are consistent with some known IBD alterations. The observed phenotype in the IBD organoids to some degree mirrors the corresponding intestinal condition, rendering them a compelling approach for investigating the disease and advancing drug exploration. Additionally, our study revealed similarities to some human IBD biomarkers, further emphasizing the translational and comparative value of dogs for future investigations related to the causes and treatment of IBD. Relevant proteins such as CALU, FLNA, MSN and HMGA2, which are related to intestinal diseases, were all upregulated in the IBD duodenal organoids. At the same time, other proteins such as intestinal keratins and the mucosal immunity PIGR were depleted in these IBD organoids. Based on these findings, we propose that these organoids could serve as a valuable tool for evaluating the efficacy of therapeutic interventions against canine IBD.
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Affiliation(s)
- Barbara Pratscher
- Clinic for Small Animals, Division for Small Animal Internal Medicine, Department for Small Animal and Horses, University of Veterinary Medicine, 1210 Vienna, Austria; (B.P.); (G.C.); (P.G.D.); (K.S.); (P.F.)
| | - Benno Kuropka
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany;
| | - Georg Csukovich
- Clinic for Small Animals, Division for Small Animal Internal Medicine, Department for Small Animal and Horses, University of Veterinary Medicine, 1210 Vienna, Austria; (B.P.); (G.C.); (P.G.D.); (K.S.); (P.F.)
| | - Pavlos G. Doulidis
- Clinic for Small Animals, Division for Small Animal Internal Medicine, Department for Small Animal and Horses, University of Veterinary Medicine, 1210 Vienna, Austria; (B.P.); (G.C.); (P.G.D.); (K.S.); (P.F.)
| | - Katrin Spirk
- Clinic for Small Animals, Division for Small Animal Internal Medicine, Department for Small Animal and Horses, University of Veterinary Medicine, 1210 Vienna, Austria; (B.P.); (G.C.); (P.G.D.); (K.S.); (P.F.)
| | - Nina Kramer
- Clinic for Small Animals, Division for Small Animal Internal Medicine, Department for Small Animal and Horses, University of Veterinary Medicine, 1210 Vienna, Austria; (B.P.); (G.C.); (P.G.D.); (K.S.); (P.F.)
| | - Patricia Freund
- Clinic for Small Animals, Division for Small Animal Internal Medicine, Department for Small Animal and Horses, University of Veterinary Medicine, 1210 Vienna, Austria; (B.P.); (G.C.); (P.G.D.); (K.S.); (P.F.)
| | - Alexandro Rodríguez-Rojas
- Clinic for Small Animals, Division for Small Animal Internal Medicine, Department for Small Animal and Horses, University of Veterinary Medicine, 1210 Vienna, Austria; (B.P.); (G.C.); (P.G.D.); (K.S.); (P.F.)
| | - Iwan A. Burgener
- Clinic for Small Animals, Division for Small Animal Internal Medicine, Department for Small Animal and Horses, University of Veterinary Medicine, 1210 Vienna, Austria; (B.P.); (G.C.); (P.G.D.); (K.S.); (P.F.)
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Miller J, Żebrowska-Różańska P, Czajkowska A, Szponar B, Kumala-Ćwikła A, Chmielarz M, Łaczmański Ł. Faecal microbiota and fatty acids in feline chronic enteropathy. BMC Vet Res 2023; 19:281. [PMID: 38124157 PMCID: PMC10731866 DOI: 10.1186/s12917-023-03824-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/27/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Feline chronic enteropathy is a set of disorders defined as the presence of clinical signs of gastrointestinal disease for at least three weeks. The most common final diagnoses are inflammatory bowel disease and alimentary small cell lymphoma. The etiopathogenesis of these diseases is incompletely understood; however, it is hypothesised that they involve a combination of factors, including altered composition and/or functionality of the intestinal microbiome. An important factor in the interplay of the microbiome and host is the production of short- and branched-chain fatty acids. The aim of this study was to evaluate the possible differences in faecal microbiota diversity, composition and fatty acid production between cats suffering from chronic enteropathy and healthy cats. Sixteen cats suffering from chronic enteropathy and fourteen healthy control cats were enrolled in the study. The microbiota compositions of faecal samples were analysed by using next-generation amplicon sequencing of the V3V4 fragment of the 16S rRNA gene. Fatty acids were evaluated by high-performance liquid chromatography. RESULTS Both the alpha and beta diversities were significantly lower in samples obtained from cats with chronic enteropathy. The relative abundance of the phylum Proteobacteria, orders Lactobacillales and Enterobacterales, family Enteriobacteriaceae and genus Escherichia Shigella were higher in diseased cats, whereas the abundance of the phylum Bacteroidota and order Peptococcales were higher in control cats. The faecal concentrations of short-chain fatty acids were higher in cats with chronic enteropathy, with lower propionate proportions and higher butyrate proportions. CONCLUSION The study revealed alterations in microbiota compositions and short-chain fatty acid concentration in cats suffering from chronic enteropathy, which is an important finding both for research on the pathogenesis of the disease and for potential therapeutic interventions in the form of faecal microbiota transplantation and/or probiotic supplementation.
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Affiliation(s)
- Julia Miller
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, Wroclaw, 50-375, Poland.
| | - Paulina Żebrowska-Różańska
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Aleksandra Czajkowska
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Bogumiła Szponar
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Aleksandra Kumala-Ćwikła
- Department of Basic Sciences, Faculty of Health Sciences, Wroclaw Medical University, Wroclaw, Poland
| | | | - Łukasz Łaczmański
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
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Alves JC, Santos A, Jorge P, Pitães Â. Faecal microbiome transplantation improves clinical signs of chronic idiopathic large bowel diarrhoea in working dogs. Vet Rec 2023; 193:e3052. [PMID: 37245211 DOI: 10.1002/vetr.3052] [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: 08/29/2022] [Revised: 03/30/2023] [Accepted: 04/25/2023] [Indexed: 05/30/2023]
Abstract
BACKGROUND Chronic diarrhoea is a common clinical sign in dogs with chronic enteropathy, and psyllium husk has been shown to improve clinical signs in affected dogs. The aim of this study was to investigate whether faecal microbiome transplant has a similar effect in alleviating clinical signs in dogs with chronic large bowel diarrhoea. METHOD Thirty large-breed working dogs with chronic large bowel diarrhoea were divided into a psyllium group (PG) and a faecal microbiome transplant group (FMTG). To the PG, 16 g/day of psyllium husk was administered for 30 days. The FMTG received faecal microbiome transplantation (FMT) once via enema. A daily log of faecal characteristics was kept, and the dogs' canine inflammatory bowel disease index (CIBDAI) and body condition scores (BCS) were determined. A Wilcoxon-Mann-Whitney test was used to compare group results. In addition, the Kaplan-Meier test was used to evaluate the occurrence rate of 1 day or more of diarrhoea and 2 days or more of diarrhoea by day 30. RESULTS The sample had a mean age of 3.9 ± 2.1 years and a bodyweight of 25.3 ± 6.8 kg. The FMTG showed a more rapid onset of CIBDAI improvement but no difference in other measures. At 30 days, the FMTG showed a greater improvement in bodyweight and BCS, but no differences were observed in faecal scores, defaecation frequency and time of appearance of episodes of diarrhoea. Time played a significant positive role in the results observed across both groups (p < 0.05). LIMITATIONS This study did not compare the microbiomes of the dogs before and after treatment, so the role of specific types of bacteria cannot be determined. CONCLUSION Psyllium husk and FMT had similar effects in improving clinical signs of chronic large bowel diarrhoea.
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Affiliation(s)
- João C Alves
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal
- Instituto Mediterrâneo para a Agricultura, Ambiente e Desenvolvimento, Universidade de Évora, Évora, Portugal
- Faculty of Veterinary Medicine, Lusófona University, Lisbon, Portugal
| | - Ana Santos
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal
| | - Patrícia Jorge
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Lisbon, Portugal
| | - Ângelo Pitães
- Faculty of Veterinary Medicine, Lusófona University, Lisbon, Portugal
- Internal Medicine Department, Evidensia Södra, Stockholm, Sweden
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11
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Pato R, Peña R, Pelegrí-Pineda A, Crusellas-Villorbina N, Pisoni L, Devant M, Marti S, Solà-Oriol D, Bassols A, Saco Y. Validation of the fCAL turbo immunoturbidimetric assay for measurement of calprotectin in porcine and bovine fecal samples. Res Vet Sci 2023; 164:105042. [PMID: 37806097 DOI: 10.1016/j.rvsc.2023.105042] [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: 06/07/2023] [Revised: 09/15/2023] [Accepted: 10/01/2023] [Indexed: 10/10/2023]
Abstract
The concentration of calprotectin in feces is a well-studied marker of gastrointestinal inflammation in humans. However, little is known about fecal calprotectin in farm animals. In this work, we have validated an immunoturbidimetric method for fecal calprotectin (Bühlmann fCAL® turbo assay, Schönenbuch, Switzerland) in porcine and bovine fecal samples. Linearity was evaluated by serial dilution (R2 > 0.97 was obtained for both species). Accuracy was assessed by a recovery study, with results between 80 and 120% for low, medium, and high samples in both species. Intra- and inter-assay variability was <20%. Limit of detection was 6.4 μg/g in pig and 5.3 μg/g in cow. Limit of quantification was 13.4 μg/g (pig) and 11.1 μg/g (cow). Additionally, clinical validation has been included to evaluate the ability of the assay to detect inflammatory status in the intestine under different management conditions. In experiments with porcine, it was found that piglets treated with ZnO had lower concentrations of fecal calprotectin. In a second experiment in bovine, calves with diarrhea had higher concentration of fecal calprotectin. The Bühlmann fCAL® turbo assay is suitable for measurement of calprotectin in porcine and bovine fecal samples. Moreover, fecal calprotectin could be a good biomarker of intestinal inflammation in both species.
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Affiliation(s)
- Raquel Pato
- Veterinary Clinical Biochemistry Service (SBCV), Department of Biochemistry and Molecular Biology, School of Veterinary, Autonomous University of Barcelona, Spain
| | - Raquel Peña
- Veterinary Clinical Biochemistry Service (SBCV), Department of Biochemistry and Molecular Biology, School of Veterinary, Autonomous University of Barcelona, Spain
| | - Anna Pelegrí-Pineda
- Veterinary Clinical Biochemistry Service (SBCV), Department of Biochemistry and Molecular Biology, School of Veterinary, Autonomous University of Barcelona, Spain
| | - Núria Crusellas-Villorbina
- Veterinary Clinical Biochemistry Service (SBCV), Department of Biochemistry and Molecular Biology, School of Veterinary, Autonomous University of Barcelona, Spain
| | - Lucia Pisoni
- Ruminant Production Program, IRTA (Institut de Recerca i Tecnologies Agroalimentàries), Torre Marimon, Caldes de Montbui, Spain
| | - Maria Devant
- Ruminant Production Program, IRTA (Institut de Recerca i Tecnologies Agroalimentàries), Torre Marimon, Caldes de Montbui, Spain
| | - Sonia Marti
- Ruminant Production Program, IRTA (Institut de Recerca i Tecnologies Agroalimentàries), Torre Marimon, Caldes de Montbui, Spain
| | - David Solà-Oriol
- Animal Nutrition and Welfare Service (SNIBA), Department of Animal and Food Science, Autonomous University of Barcelona, Barcelona, Spain
| | - Anna Bassols
- Veterinary Clinical Biochemistry Service (SBCV), Department of Biochemistry and Molecular Biology, School of Veterinary, Autonomous University of Barcelona, Spain.
| | - Yolanda Saco
- Veterinary Clinical Biochemistry Service (SBCV), Department of Biochemistry and Molecular Biology, School of Veterinary, Autonomous University of Barcelona, Spain
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12
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Manchester AC, Dow S, Chow L, Gagne J, Lappin MR. Efficacy of an elemental diet in achieving clinical remission in dogs with chronic enteropathy. J Vet Intern Med 2023; 37:2322-2333. [PMID: 37681584 PMCID: PMC10658491 DOI: 10.1111/jvim.16846] [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: 12/13/2022] [Accepted: 08/22/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND Diet may induce clinical remission in dogs with chronic enteropathy (CE). Elemental diets (EDs), providing protein as amino acids, modulate intestinal immunity and microbiome in rodents and humans. HYPOTHESIS Evaluate the impact of an amino acid-based kibble (EL) on CE clinical activity and gastrointestinal (GI)-relevant variables. ANIMALS Client-owned dogs (n = 23) with inadequately controlled CE. METHODS Prospective, uncontrolled clinical trial. Diagnostic evaluation including upper and lower GI endoscopy was performed before study entry. Canine chronic enteropathy clinical activity index (CCECAI), serum biomarkers, and fecal microbiome were evaluated before and after 2 weeks of EL. Dogs with stable or improved CE remained in the study for another 6 weeks. Pre- and post-EL clinical and microbiological variables were compared statistically using a mixed model. RESULTS After 2 weeks of EL, 15 of 22 dogs (68%; 95% confidence interval [CI], 47%-84%) consuming the diet were classified as responders with a median (range) decrease in CCECAI from 6 (3-12) to 2 (0-9; P < .001). Fourteen of 15 responders and 2/7 nonresponders at 2 weeks completed the trial; all 16 were experiencing adequate control at week 8 with a median CCECAI of 2 (0-3). In total, 16/23 dogs (70%; 95% CI, 49%-84%) were responders. Feeding EL caused shifts in fecal bacterial communities, which differed between responders and nonresponders. Serum biomarker concentrations were unchanged throughout the study apart from serum alkaline phosphatase activity. CONCLUSIONS Exclusive feeding of EL improved clinical signs in 16 of 23 dogs with uncontrolled CE. Fecal microbiome shifts were associated with response to diet and may represent a mechanism for clinical improvement.
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Affiliation(s)
- Alison C. Manchester
- Department of Clinical Sciences, Center for Companion Animal StudiesColorado State UniversityFort CollisColoradoUSA
| | - Steven Dow
- Flint Animal Cancer CenterColorado State UniversityFort CollinsColoradoUSA
| | - Lyndah Chow
- Flint Animal Cancer CenterColorado State UniversityFort CollinsColoradoUSA
| | | | - Michael R. Lappin
- Department of Clinical Sciences, Center for Companion Animal StudiesColorado State UniversityFort CollisColoradoUSA
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13
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Trewin I, Kathrani A. Pre-illness dietary risk factors in dogs with chronic enteropathy. J Vet Intern Med 2023; 37:2093-2101. [PMID: 37743693 PMCID: PMC10658591 DOI: 10.1111/jvim.16872] [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: 01/31/2023] [Accepted: 09/08/2023] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND Dietary factors have been extensively studied as potential triggers of inflammatory bowel disease in humans. Scant literature exists regarding diet as a pre-illness risk factor in dogs with chronic enteropathy (CE). HYPOTHESIS To evaluate possible pre-illness dietary risk factors in dogs with CE. ANIMALS Ninety-five client-owned dogs; 48 with CE (25 presumptive and 23 confirmed) and 47 without a history of signs of gastrointestinal disease. METHODS Retrospective case-control questionnaire-based study at a veterinary referral teaching hospital in the United Kingdom. Diet history was obtained relating to the onset of initial presenting signs for all dogs. The main diet consumed underwent ingredient analysis and caloric distribution calculation using a guaranteed analysis convertor software. Length of time the main diet was fed and adherence to the World Small Animal Veterinary Association Global Nutrition Committee guidelines was also recorded. RESULTS The frequency of the main diet containing no carbohydrate was greater for controls (5/47 dogs, 11%) vs the combined presumptive and confirmed CE dogs (0/48 dogs, 0%; P = .05). Fewer dogs with confirmed CE were fed a main diet containing red meat as the primary protein source (2/23 dogs, 9%) vs controls (15/47 dogs, 32%; P = .03). A main diet moisture percentage of ≤14% as fed was significantly associated with confirmed CE in logistic regression analysis (OR 5.71 [95% CI: 1.18-27.69]; P = .03). CONCLUSIONS AND CLINICAL IMPORTANCE The presence of dietary carbohydrate, protein source, and dietary moisture content, or factors related to moisture content such as preservatives, might play a role as potential pre-illness dietary risk factors in dogs with CE.
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Affiliation(s)
- Isla Trewin
- Royal Veterinary CollegeUniversity of LondonLondonEngland
| | - Aarti Kathrani
- Royal Veterinary CollegeUniversity of LondonLondonEngland
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14
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Simpson KW, Miller ML, Loftus JP, Rishniw M, Frederick CE, Wakshlag JJ. Randomized controlled trial of hydrolyzed fish diets in dogs with chronic enteropathy. J Vet Intern Med 2023; 37:2334-2343. [PMID: 37680008 PMCID: PMC10658534 DOI: 10.1111/jvim.16844] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 08/21/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND The role of diet in the pathogenesis and treatment of chronic enteropathies (CE) in dogs is unresolved. OBJECTIVES To compare the ability of diets composed of hydrolyzed fish, rice starch, and fish oil without (HF) or with prebiotics, turmeric, and high cobalamin (HF+) against a limited ingredient diet containing mixed nonhydrolyzed antigens and oils (control) to resolve clinical signs and maintain serum cobalamin and folate concentrations in dogs with nonprotein losing CE (non-PLE). To determine the ability of hydrolyzed fish diets to support recovery and remission in dogs with PLE. ANIMALS Thirty-one client-owned dogs with CE: 23 non-PLE, 8 PLE. METHODS Randomized, blinded, controlled trial. Diets were fed for 2 weeks; responders continued for 12 weeks. Nonresponders were crossed over to another diet for 12 weeks. Response was determined by standardized clinical evaluation with long-term follow-up at 26 weeks. Concurrent medications were allowed in PLE. RESULTS Nineteen of 23 (83%; 95% confidence interval [CI], 60%-94%) non-PLE CE responded clinically to their initial diet, with no difference between diets (P > .05). Four nonresponders responded to another diet, with sustained remission of 18/18 (100%; 95%CI, 78%-100%) at 26 weeks. Serum cobalamin concentration was increased (P < .05) and maintained by diet. Serum folate concentration decreased posttreatment (P < .05) but was restored by dietary supplementation. Hydrolyzed fish diets supported weight gain, serum albumin concentration, and recovery (P < .05) in dogs with PLE. CONCLUSIONS AND CLINICAL IMPORTANCE Changing diet, independent of antigen restriction or supplemental ingredients, induced long-term remission in dogs with non-PLE CE. Serum cobalamin and folate concentrations were maintained by diet. Hydrolyzed fish diets supported clinical recovery and remission in PLE.
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Affiliation(s)
- Kenneth W. Simpson
- Department of Clinical Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Meredith L. Miller
- Department of Clinical Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - John P. Loftus
- Department of Clinical Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Mark Rishniw
- Department of Clinical Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Carol E. Frederick
- Department of Clinical Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Joseph J. Wakshlag
- Department of Clinical Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
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15
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Pawenski M, Smola CC, Dionne T, Larson M. Histopathologic diagnosis and patient characteristics in cats with small intestinal obstructions secondary to trichobezoars. J Feline Med Surg 2023; 25:1098612X231196231. [PMID: 37747322 PMCID: PMC10812032 DOI: 10.1177/1098612x231196231] [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] [Indexed: 09/26/2023]
Abstract
OBJECTIVES The aim of the present study was to describe the distribution of gastrointestinal histopathology findings associated with gastrointestinal obstructions secondary to trichobezoar formation in cats. METHODS A total of 100 surgical gastrointestinal biopsies were obtained from 44 cats with gastrointestinal obstructions secondary to a trichobezoar. Medical records, including signalment, type and duration of clinical signs, surgical reports and histopathologic analysis, were reviewed for each cat. RESULTS Biopsies taken near the site of the trichobezoar were more likely to show neutrophilic inflammation and mucosal erosion/ulceration compared with biopsies taken elsewhere in the small intestine. Lymphoplasmacytic and mixed lymphocytic and eosinophilic populations were the most common histopathologic findings from all biopsies followed by alimentary small cell lymphoma. Biopsy samples were more likely to represent a diagnosis of alimentary lymphoma in cats older than 10 years. CONCLUSIONS AND RELEVANCE Gastrointestinal biopsies taken at the time of surgery in cats with trichobezoar obstructions may represent an important diagnostic tool for further evaluation of potential feline chronic enteropathy. Biopsies taken at the site of the obstruction should be interpreted cautiously as the presence of a trichobezoar may induce an acute inflammatory reaction. The resultant histologic interpretation at this site may not represent the chronic state of the intestinal mucosa, supporting the utility of obtaining multiple biopsies orad and aborad to the obstruction.
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Affiliation(s)
| | | | - Trysta Dionne
- BluePearl Veterinary Partners Clearwater, Clearwater, FL, USA
| | - Melinda Larson
- BluePearl Veterinary Partners Clearwater, Clearwater, FL, USA
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16
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Basran PS, Shcherban N, Forman M, Chang J, Nelissen S, Recchia BK, Porter IR. Combining ultrasound radiomics, complete blood count, and serum biochemical biomarkers for diagnosing intestinal disorders in cats using machine learning. Vet Radiol Ultrasound 2023; 64:890-903. [PMID: 37394240 DOI: 10.1111/vru.13250] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/06/2023] [Accepted: 04/15/2023] [Indexed: 07/04/2023] Open
Abstract
This retrospective analytical observational cohort study aimed to model and predict the classification of feline intestinal diseases from segmentations of a transverse section from small intestine ultrasound (US) image, complete blood count (CBC), and serum biochemical profile data using a variety of machine-learning approaches. In 149 cats from three institutions, images were obtained from cats with biopsy-confirmed small cell epitheliotropic lymphoma (lymphoma), inflammatory bowel disease (IBD), no pathology ("healthy"), and other conditions (warrant a biopsy for further diagnosis). CBC, blood serum chemistry, small intestinal ultrasound, and small intestinal biopsy were obtained within a 2-week interval. CBC and serum biomarkers and radiomic features were combined for modeling. Four classification schemes were investigated: (1) normal versus abnormal; (2) warranting or not warranting a biopsy; (3) lymphoma, IBD, healthy, or other conditions; and (4) lymphoma, IBD, or other conditions. Two feature selection methods were used to identify the top 3, 5, 10, and 20 features, and six machine learning models were trained. The average (95% CI) performance of models for all combinations of features, numbers of features, and types of classifiers was 0.886 (0.871-0.912) for Model 1 (normal vs. abnormal), 0.751 (0.735-0.818) for Model 2 (biopsy vs. no biopsy), 0.504 (0.450-0.556) for Model 3 (lymphoma, IBD, healthy, or other), and 0.531 (0.426-0.589), for Model 4 (lymphoma, IBD, or other). Our findings suggest model accuracies above 0.85 can be achieved in Model 1 and 2, and that including CBC and biochemistry data with US radiomics data did not significantly improve accuracy in our models.
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Affiliation(s)
- Parminder S Basran
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
- Department of Biological Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Natalya Shcherban
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Marnin Forman
- Cornell University Veterinary Specialists, Stamford, Connecticut, USA
| | - Jasmine Chang
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Sophie Nelissen
- Department of Biomedical Sciences, Section of Anatomic Pathology, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | | | - Ian R Porter
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
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17
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Karra DA, Chadwick CC, Stavroulaki EM, Pitropaki MN, Flouraki E, Allenspach K, Lidbury JA, Steiner JM, Xenoulis PG. Fecal acute phase proteins in cats with chronic enteropathies. J Vet Intern Med 2023; 37:1750-1759. [PMID: 37401847 PMCID: PMC10473003 DOI: 10.1111/jvim.16802] [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: 12/05/2022] [Accepted: 06/21/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND Chronic enteropathies (CE) are common in cats and reliable biomarkers that can distinguish different causes and predict or monitor response to treatment are currently lacking. HYPOTHESIS To evaluate certain acute phase proteins in feces that could potentially be used as biomarkers in cats with CE. ANIMALS Twenty-eight cats with either inflammatory bowel disease (IBD; n = 13), food-responsive enteropathy (FRE; n = 3) or small cell gastrointestinal lymphoma (SCGL; n = 12) and 29 healthy control cats were prospectively enrolled. METHODS Fecal concentrations of haptoglobin, alpha-1-acid-glycoprotein (AGP), pancreatitis-associated protein-1 (PAP-1), ceruloplasmin, and C-reactive protein (CRP) were measured using Spatial Proximity Analyte Reagent Capture Luminescence (SPARCL) immunoassays before and after initiation of treatment. Cats were treated with diet and/or prednisolone (IBD cats), plus chlorambucil (SCGL cats). RESULTS Compared with controls, median fecal AGP concentrations were significantly lower (25.1 vs 1.8 μg/g; P = .003) and median fecal haptoglobin (0.17 vs 0.5 μg/g), PAP-1 (0.04 vs 0.4 μg/g) and ceruloplasmin (0.15 vs 4.2 μg/g) concentrations were significantly higher (P < .001) in cats with CE. Median fecal AGP concentrations were significantly lower (P = .01) in cats with IBD and FRE (0.6 μg/g) compared with cats with SCGL (10.75 μg/g). A significant reduction was found in CE cats after treatment for median fecal ceruloplasmin concentrations (6.36 vs 1.16 μg/g; P = .04). CONCLUSIONS Fecal AGP concentration shows promise to differentiate cats with SCGL from cats with IBD and FRE. Fecal ceruloplasmin concentrations may be useful to objectively monitor response to treatment in cats with CE.
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Affiliation(s)
| | | | | | | | | | - Karin Allenspach
- Iowa State UniversityCollege of Veterinary Medicine, Veterinary Clinical SciencesAmesIowaUSA
| | - Jonathan A. Lidbury
- Texas A&M University – Gastrointestinal LaboratoryCollege of Veterinary Medicine & Biomedical SciencesCollege StationTexasUSA
| | - Joerg M. Steiner
- Texas A&M UniversityGastrointestinal LaboratoryCollege StationTexasUSA
| | - Panagiotis G. Xenoulis
- University of ThessalySmall Animal ClinicKarditsaGreece
- Texas A&M UniversityGastrointestinal LaboratoryCollege StationTexasUSA
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18
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Yu J, Boland L, Catt M, Puk L, Wong N, Krockenberger M, Bennett P, Ruaux C, Wasinger VC. Serum proteome profiles in cats with chronic enteropathies. J Vet Intern Med 2023; 37:1358-1367. [PMID: 37279179 PMCID: PMC10365053 DOI: 10.1111/jvim.16743] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 05/07/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Serum protein biomarkers are used to diagnose, monitor treatment response, and to differentiate various forms of chronic enteropathies (CE) in humans. The utility of liquid biopsy proteomic approaches has not been examined in cats. HYPOTHESIS/OBJECTIVES To explore the serum proteome in cats to identify markers differentiating healthy cats from cats with CE. ANIMALS Ten cats with CE with signs of gastrointestinal disease of at least 3 weeks duration, and biopsy-confirmed diagnoses, with or without treatment and 19 healthy cats were included. METHODS Cross-sectional, multicenter, exploratory study with cases recruited from 3 veterinary hospitals between May 2019 and November 2020. Serum samples were analyzed and evaluated using mass spectrometry-based proteomic techniques. RESULTS Twenty-six proteins were significantly (P < .02, ≥5-fold change in abundance) differentially expressed between cats with CE and controls. Thrombospondin-1 (THBS1) was identified with >50-fold increase in abundance in cats with CE (P < 0.001) compared to healthy cats. CONCLUSIONS AND CLINICAL IMPORTANCE Damage to the gut lining released marker proteins of chronic inflammation that were detectable in serum samples of cats. This early-stage exploratory study strongly supports THBS1 as a candidate biomarker for chronic inflammatory enteropathy in cats.
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Affiliation(s)
- Jane Yu
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Lara Boland
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Melissa Catt
- Paddington Cat Hospital, Paddington, New South Wales, Australia
| | - Leah Puk
- Paddington Cat Hospital, Paddington, New South Wales, Australia
| | - Nadia Wong
- McIvor Road Veterinary Centre, Bendigo, Victoria, Australia
| | - Mark Krockenberger
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Peter Bennett
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Craig Ruaux
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Valerie C Wasinger
- Bioanalytical Mass Spectrometry Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, New South Wales, Australia
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Nakashima K, Matsumoto I, Goto-Koshino Y, Hiyoshi-Kanemoto S, Kojima K, Chambers JK, Takeuchi Y, Tsujimoto H, Tomiyasu H, Uchida K. Prognostic value of increased intraepithelial lymphocytes and lymphocytic clonality in dogs with chronic enteropathy or small-cell lymphoma. Vet J 2023; 296-297:105993. [PMID: 37178863 DOI: 10.1016/j.tvjl.2023.105993] [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: 05/17/2022] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/15/2023]
Abstract
The clinical significance of severe infiltration of small intraepithelial lymphocytes (IEL) and the results of polymerase chain reaction for antigen receptor rearrangement (PARR) in dogs with chronic enteropathy (CE) and small-cell lymphoma (SCL) are controversial. This cohort study aimed to evaluate the prognostic significance of the IEL and PARR results in dogs with CE or SCL. Although definitive diagnostic histopathological criteria for SCL in dogs have yet to be established, dogs with the histopathological findings of severe IEL infiltration were diagnosed with SCL in this study. One hundred and nineteen dogs were recruited, with 23 dogs classified as having SCL and 96 dogs as having CE. The positive rate of PARR was 59.6 % (71/119) in the duodenum and 57.7 % (64/111) in the ileum. Subsequently, three dogs with SCL and four dogs with CE developed large-cell lymphoma (LCL). The median overall survival (OS) of dogs with SCL was 700 days (range, 6-1410 days), and that of dogs with CE was not reached. In the log-rank test, shorter OS was observed in cases with histopathological SCL (P = 0.035), clonal TCRγ rearrangement in the duodenum (P = 0.012), and clonal IgH rearrangement in the ileum (P < 0.0001). The Cox proportional hazards model adjusted for sex and age showed that histopathological SCL (hazard ratio [HR] 1.74; 95 % confidence interval [CI], 0.83-3.65), duodenal clonal TCRγ rearrangement (HR, 1.80; 95 % CI, 0.86-3.75), and ileal clonal IgH rearrangement (HR, 2.28; 95 % CI, 0.92-5.70) could shorten overall survival, although their 95 % CIs included 1.0. These results indicate that severe IEL infiltration could be a useful histopathological feature for diagnosing SCL, and clonality-positive results could be a negative prognostic factor in dogs with CE. Furthermore, the development of LCL should be carefully monitored in dogs with CE and SCL..
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Affiliation(s)
- K Nakashima
- Japan Small Animal Medical Center, 1-10-4 higashi Tokorozawa wada, Tokorozawa, Saitama 359-0023, Japan.
| | - I Matsumoto
- Japan Small Animal Medical Center, 1-10-4 higashi Tokorozawa wada, Tokorozawa, Saitama 359-0023, Japan
| | - Y Goto-Koshino
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - S Hiyoshi-Kanemoto
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - K Kojima
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - J K Chambers
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Y Takeuchi
- Division of Medical Statistics, Department of Social Medicine, Faculty of Medicine, Toho University, 5-21-16 Ohmori-nishi, Ota-ku, Tokyo 143-8540, Japan
| | - H Tsujimoto
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - H Tomiyasu
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - K Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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20
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Marsilio S, Freiche V, Johnson E, Leo C, Langerak AW, Peters I, Ackermann MR. ACVIM consensus statement guidelines on diagnosing and distinguishing low-grade neoplastic from inflammatory lymphocytic chronic enteropathies in cats. J Vet Intern Med 2023; 37:794-816. [PMID: 37130034 PMCID: PMC10229359 DOI: 10.1111/jvim.16690] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 02/04/2023] [Accepted: 03/10/2023] [Indexed: 05/03/2023] Open
Abstract
BACKGROUND Lymphoplasmacytic enteritis (LPE) and low-grade intestinal T cell lymphoma (LGITL) are common diseases in older cats, but their diagnosis and differentiation remain challenging. OBJECTIVES To summarize the current literature on etiopathogenesis and diagnosis of LPE and LGITL in cats and provide guidance on the differentiation between LPE and LGITL in cats. To provide statements established using evidence-based approaches or where such evidence is lacking, statements based on consensus of experts in the field. ANIMALS None. METHODS A panel of 6 experts in the field (2 internists, 1 radiologist, 1 anatomic pathologist, 1 clonality expert, 1 oncologist) with the support of a human medical immunologist, was formed to assess and summarize evidence in the peer-reviewed literature and complement it with consensus recommendations. RESULTS Despite increasing interest on the topic for clinicians and pathologists, few prospective studies were available, and interpretation of the pertinent literature often was challenging because of the heterogeneity of the cases. Most recommendations by the panel were supported by a moderate or low level of evidence. Several understudied areas were identified, including cellular markers using immunohistochemistry, genomics, and transcriptomic studies. CONCLUSIONS AND CLINICAL IMPORTANCE To date, no single diagnostic criterion or known biomarker reliably differentiates inflammatory lesions from neoplastic lymphoproliferations in the intestinal tract of cats and a diagnosis currently is established by integrating all available clinical and diagnostic data. Histopathology remains the mainstay to better differentiate LPE from LGITL in cats with chronic enteropathy.
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Affiliation(s)
- Sina Marsilio
- Department of Veterinary Medicine and EpidemiologyUC Davis School of Veterinary MedicineDavisCaliforniaUSA
| | - Valerie Freiche
- Ecole Nationale Vétérinaire d'AlfortCHUVA, Unité de Médecine InterneMaisons‐AlfortFrance
| | - Eric Johnson
- Department of Surgical & Radiological SciencesUC Davis School of Veterinary MedicineDavisCaliforniaUSA
| | - Chiara Leo
- Anicura Istituto Veterinario NovaraNovaraItaly
| | | | | | - Mark R. Ackermann
- Oregon Veterinary Diagnostic Laboratory, Oregon State UniversityCorvallisOregonUSA
- Present address:
US Department of AgricultureNational Animal Disease CenterAmesIowaUSA
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21
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Zornow KA, Slovak JE, Lidbury JA, Suchodolski JS, Steiner JM. Fecal S100A12 concentrations in cats with chronic enteropathies. J Feline Med Surg 2023; 25:1098612X231164273. [PMID: 36995216 PMCID: PMC10812014 DOI: 10.1177/1098612x231164273] [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] [Indexed: 03/31/2023]
Abstract
OBJECTIVES The aim of this study was to compare fecal S100A12 concentrations in cats diagnosed with chronic enteropathy (CE) with healthy control cats. METHODS This was a prospective, cross-sectional study. Forty-nine cats that had gastrointestinal signs for >3 weeks and a complete diagnostic work-up, including bloodwork, abdominal ultrasound and upper and/or lower gastrointestinal endoscopic biopsies, were enrolled into the CE group. Nineteen cats from the CE group were diagnosed with inflammatory bowel disease (IBD) or chronic inflammatory enteropathy (CIE) and 30 with alimentary lymphoma (LSA), based on histopathology results and additional testing with immunohistochemistry or molecular clonality testing with PCR if indicated. Nineteen apparently healthy control cats were included in the study. One fecal sample was collected from each cat and S100A12 concentrations were quantified by an analytically validated in-house ELISA. RESULTS Fecal S100A12 concentrations differed between cats with LSA (median 110 ng/g; interquartile range [IQR] 18-548) and control cats (median 4 ng/g; IQR 2-25 [P <0.001]) and between cats with IBD (median 34 ng/g; IQR 15-973) and control cats (P <0.003). S100A12 concentrations in CE cats (median 94 ng/g; IQR 16-548) were statistically significantly higher compared with control cats (P <0.001). The area under the receiver operating characteristic curve (AUROC) to separate healthy cats from CE cats was 0.81 (95% confidence interval [CI] 0.70-0.92) and was statistically significant (P <0.001). The AUROC to separate cats with IBD from cats with LSA was 0.51 (95% CI 0.34-0.68) and was not statistically significant (P = 0.9). CONCLUSIONS AND RELEVANCE Fecal S100A12 concentrations at the time of diagnostic investigation were higher in cats with CIE and LSA than in healthy controls but did not differ between cats with LSA and those with CIE/IBD. This study is an initial step toward evaluating a novel non-invasive marker of feline CIE. Further studies are needed to determine the diagnostic utility of fecal S100A12 concentrations in cats with CE, including comparing cats with IBD/CIE and LSA, and to compare them with cats with extra-gastrointestinal disease.
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Affiliation(s)
- Kailee A Zornow
- Internal Medicine Department, Schwarzman Animal Medical Center, New York, NY, USA
| | - Jennifer E Slovak
- Internal Medicine Department, Schwarzman Animal Medical Center, New York, NY, USA
| | - Jonathan A Lidbury
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Jan S Suchodolski
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Joerg M Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
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22
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Mills G. Are table scraps really that bad for dogs? Vet Rec 2023; 192:194-195. [PMID: 36866886 DOI: 10.1002/vetr.2796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Georgina Mills reports on new research that suggests certain human foods may protect dogs against chronic enteropathy.
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23
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HIURA K, MARUYAMA T, WATANABE M, NAKANO K, OKAMURA T, SASAKI H, SASAKI N. Mitotic spindle positioning protein (MISP) deficiency exacerbates dextran sulfate sodium (DSS)-induced colitis in mice. J Vet Med Sci 2023; 85:167-174. [PMID: 36596561 PMCID: PMC10017287 DOI: 10.1292/jvms.22-0483] [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: 10/25/2022] [Accepted: 12/07/2022] [Indexed: 12/31/2022] Open
Abstract
Inflammatory bowel disease (IBD) is classified into two types: Crohn's disease and ulcerative colitis. In IBD, the imbalance between the pro-inflammatory and anti-inflammatory cytokines prevents recovery from the inflammatory state, resulting in chronic inflammation in the colon. The mitotic spindle positioning protein (MISP) is localized to the apical membrane in the colon. In this study, we observed increased expression of MISP in the intestinal epithelial cells in dextran sulfate sodium (DSS)-induced colitis in mice. MISP-deficient mice receiving DSS showed significant exacerbation of colitis (e.g., weight loss, loss of the crypts). The intestinal epithelial cells of the MISP-deficient mice showed a trend towards decreased cell proliferation after DSS treatment. Reverse transcription followed by quantitative polymerase chain reaction revealed that the expression levels of Tgfb1, an anti-inflammatory cytokine, were significantly reduced in the colon of MISP-deficient mice compared with the wild-type mice regardless of DSS treatment. These findings indicate that MISP may play a role in the recovery of the colon after inflammation through its anti-inflammatory and proliferative activities, suggesting that MISP may be a new therapeutic target for IBD.
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Affiliation(s)
- Koki HIURA
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Takumi MARUYAMA
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
- Department of Laboratory Animal Medicine, Research
Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Masaki WATANABE
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Kenta NAKANO
- Department of Laboratory Animal Medicine, Research
Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tadashi OKAMURA
- Department of Laboratory Animal Medicine, Research
Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Hayato SASAKI
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Nobuya SASAKI
- Laboratory of Laboratory Animal Science and Medicine, School
of Veterinary Medicine, Kitasato University, Aomori, Japan
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24
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Au Yeung S, Giaretta P, Morningstar T, Masuda E, Questa M, Fereidouni F, Levenson RM, Marsilio S. Utility of fluorescence imitating brightfield imaging microscopy for the diagnosis of feline chronic enteropathy. Vet Pathol 2023; 60:52-59. [PMID: 36286074 PMCID: PMC9827481 DOI: 10.1177/03009858221131363] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Fluorescence imitating brightfield imaging (FIBI) is a novel microscopy method that allows for real-time, nondestructive, slide-free tissue imaging of fresh, formalin-fixed, or paraffin-embedded tissue. The nondestructive nature of the technology permits tissue preservation for downstream analyses. The objective of this observational study was to assess the utility of FIBI compared with conventional hematoxylin and eosin (H&E)-stained histology slides in feline gastrointestinal histopathology. Formalin-fixed paraffin-embedded full-thickness small intestinal tissue specimens from 50 cases of feline chronic enteropathy were evaluated. The ability of FIBI to evaluate predetermined morphological features (epithelium, villi, crypts, lacteals, fibrosis, submucosa, and muscularis propria) and inflammatory cells was assessed on a 3-point scale (0 = FIBI cannot identify the feature; 1 = FIBI can identify the feature; 2 = FIBI can identify the feature with more certainty than H&E). H&E and FIBI images were also scored according to World Small Animal Veterinary Association (WSAVA) Gastrointestinal Standardization Group guidelines. FIBI identified morphological features with similar or, in some cases, higher confidence compared with H&E images. The identification of inflammatory cells was less consistent. FIBI and H&E images showed an overall poor agreement with regard to the assigned WSAVA scores. While FIBI showed an equal or better ability to identify morphological features in intestinal biopsies, its ability to identify inflammatory cells is currently inferior compared with H&E-based imaging. Future studies on the utility of FIBI as a diagnostic tool for noninflammatory histopathologic lesions are warranted.
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Affiliation(s)
| | - Paula Giaretta
- Universidade Federal de Minas Gerais,
Belo Horizonte, Brazil
| | | | | | - Maria Questa
- UC Davis School of Veterinary Medicine,
Davis, CA
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25
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Collier AJ, Gomez DE, Monteith G, Plattner BL, Verbrugghe A, Webb J, Weese JS, Blois SL. Investigating fecal microbial transplant as a novel therapy in dogs with inflammatory bowel disease: A preliminary study. PLoS One 2022; 17:e0276295. [PMID: 36256653 PMCID: PMC9578606 DOI: 10.1371/journal.pone.0276295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 10/04/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND There are limited studies investigating the use of fecal microbial transplant (FMT) in dogs with inflammatory bowel disease (IBD). The aim of this preliminary study was to assess the feasibility of adding FMT to standard therapy (corticosteroids and a hypoallergenic diet) for dogs with IBD and to and to describe the changes in measured outcomes after 30 days of treatment. METHODS Thirteen client-owned dogs with IBD were enrolled in this double blinded, randomized clinical trial. All dogs received corticosteroid therapy and a hypoallergenic diet; dogs were randomized to receive either placebo or FMT. Measured outcomes included the canine chronic enteropathy clinical activity index (CCECAI) at 1 week and 1 month after enrolment. Fecal microbiota were analyzed after extracting DNA from fecal samples and profiling using 16S amplicon sequencing. Dogs in the placebo group not responding to treatment after 1 month were offered FMT. RESULTS The CCECAI significantly decreased over time in both groups (p = 0.001). There were no significant differences between the CCECAI of the placebo and FMT group at each time point (F test from ANOVA, p = 0.40). No adverse effects were reported in the 30 days following FMT. CONCLUSIONS The addition of FMT to standard therapy for IBD was feasible. No significant differences were observed in the CCECAI between groups at each time point. Large scale clinical trials can be performed using these methods to evaluate the longer term effect of FMT on clinical signs, microbial diversity, and other outcomes.
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Affiliation(s)
- Allison J. Collier
- Department of Clinical Studies, Ontario Veterinary College, Guelph, Ontario, Canada
- * E-mail:
| | - Diego E. Gomez
- Department of Clinical Studies, Ontario Veterinary College, Guelph, Ontario, Canada
| | - Gabrielle Monteith
- Department of Population Medicine, Ontario Veterinary College, Guelph, Ontario, Canada
| | - Brandon L. Plattner
- Department of Diagnostic Medicine and Pathobiology, Kansas State University, Manhattan, Kansas, United States of America
| | - Adronie Verbrugghe
- Department of Clinical Studies, Ontario Veterinary College, Guelph, Ontario, Canada
| | - Jinelle Webb
- Mississauga Oakville Veterinary Emergency Hospital, Mississauga, Ontario, Canada
| | - J. Scott Weese
- Department of Clinical Studies, Ontario Veterinary College, Guelph, Ontario, Canada
| | - Shauna L. Blois
- Department of Clinical Studies, Ontario Veterinary College, Guelph, Ontario, Canada
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26
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Webb TL, Webb CB. Comparing adipose-derived mesenchymal stem cells with prednisolone for the treatment of feline inflammatory bowel disease. J Feline Med Surg 2022; 24:e244-e250. [PMID: 35713592 PMCID: PMC10812281 DOI: 10.1177/1098612x221104053] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The objective of this study was to compare the efficacy of feline mesenchymal stem cells (fMSC) with prednisolone as a treatment for inflammatory bowel disease (IBD) in cats. METHODS Cats with chronic enteropathy that failed a 2-week diet trial and were not found to have significant concurrent disease were eligible for the study. If endoscopic biopsies confirmed a histopathologic diagnosis of IBD, the cat was randomly assigned to either the fMSC or prednisolone groups. Owners were blinded to the grouping. Stem cell treatment consisted of two intravenous injections of 2 × 106 cells/kg of freshly cultured allogeneic stem cells separated by 2 weeks. Prednisolone treatment was 1-2 mg/kg PO q24h, tapered according to clinical response. Owners were asked to make no changes (eg, diet and other medications) for the first 2 months, at which time they either continued to the 6-month recheck with no changes, or 'failed' treatment and owners were unblinded and changes made as necessary. RESULTS Six prednisolone and six fMSC treatment cats completed the study. All six prednisolone group cats were spayed females with a mean age of 8.3 years (range 2-14), a mean body weight of 3.6 kg (range 2.5-4.8) and a mean pretreatment Feline Chronic Enteropathy Activity Index (FCEAI) score of 3.6 (range 2-6). The six stem cell cats included three spayed females and three castrated males, and had a mean age of 8.0 years (range 4.5-13), a mean body weight of 4.9 kg (range 4.0-5.9) and a mean pretreatment FCEAI score of 3.7 (range 2-5). One cat in each group failed at the 2-month recheck. At the 6-month recheck, the mean FCEAI score for the prednisolone group was 3.7 (range 0.5-9) and 0.75 (range 0-1.5) for the fMSC group. CONCLUSIONS AND RELEVANCE These results suggest that this specific fMSC protocol appears to be as effective in the treatment of feline IBD as a standard course of prednisolone therapy.
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Affiliation(s)
- Tracy L Webb
- Clinical Sciences Department, Colorado State University, Fort Collins, CO, USA
| | - Craig B Webb
- Clinical Sciences Department, Colorado State University, Fort Collins, CO, USA
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27
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Sung CH, Marsilio S, Chow B, Zornow KA, Slovak JE, Pilla R, Lidbury JA, Steiner JM, Park SY, Hong MP, Hill SL, Suchodolski JS. Dysbiosis index to evaluate the fecal microbiota in healthy cats and cats with chronic enteropathies. J Feline Med Surg 2022; 24:e1-e12. [PMID: 35266809 PMCID: PMC9160961 DOI: 10.1177/1098612x221077876] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Previous studies have identified various bacterial taxa that are altered in cats with chronic enteropathies (CE) vs healthy cats. Therefore, the aim of this study was to develop a targeted quantitative molecular method to evaluate the fecal microbiota of cats. METHODS Fecal samples from 80 client-owned healthy cats and 68 cats with CE were retrospectively evaluated. A panel of quantitative PCR (qPCR) assays was used to measure the fecal abundance of total bacteria and seven bacterial taxa: Bacteroides, Bifidobacterium, Clostridium hiranonis, Escherichia coli, Faecalibacterium, Streptococcus and Turicibacter. The nearest centroid classifier algorithm was used to calculate a dysbiosis index (DI) based on these qPCR abundances. RESULTS The abundances of total bacteria, Bacteroides, Bifidobacterium, C hiranonis, Faecalibacterium and Turicibacter were significantly decreased, while those of E coli and Streptococcus were significantly increased in cats with CE (P <0.027 for all). The DI in cats with CE was significantly higher compared with healthy cats (P <0.001). When the cut-off value of the DI was set at 0, it provided 77% (95% confidence interval [CI] 66-85) sensitivity and 96% (95% CI 89-99) specificity to differentiate the microbiota of cats with CE from those of healthy cats. Fifty-two of 68 cats with CE had a DI >0. CONCLUSIONS AND RELEVANCE A qPCR-based DI for assessing the fecal microbiota of cats was established. The results showed that a large proportion of cats with CE had an altered fecal microbiota as evidenced by an increased DI. Prospective studies are warranted to evaluate the utility of this assay for clinical assessment of feline CE.
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Affiliation(s)
- Chi-Hsuan Sung
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
| | - Sina Marsilio
- UC Davis School of Veterinary Medicine, Department of Veterinary Medicine and Epidemiology, University of California-Davis, Davis, CA, USA
| | - Betty Chow
- Veterinary Specialty Hospital, San Diego, CA, USA
- VCA Animal Specialty and Emergency Center, Los Angeles, CA, USA
| | | | | | - Rachel Pilla
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
| | - Jonathan A Lidbury
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
| | - Jörg M Steiner
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
| | - So Young Park
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
| | - Min-Pyo Hong
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
| | - Steve L Hill
- Veterinary Specialty Hospital, San Diego, CA, USA
- Flagstaff Veterinary Internal Medicine Consulting, Flagstaff, AZ, USA
| | - Jan S Suchodolski
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
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28
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Hansen-Jones C. Simultaneous occurrence of inflammatory bowel disease and trichomonosis in a Maine coon cat - A comment. Can Vet J 2022; 63:466. [PMID: 35502257 PMCID: PMC9009740] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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29
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Sheh A, Artim SC, Burns MA, Molina-Mora JA, Lee MA, Dzink-Fox J, Muthupalani S, Fox JG. Analysis of gut microbiome profiles in common marmosets (Callithrix jacchus) in health and intestinal disease. Sci Rep 2022; 12:4430. [PMID: 35292670 PMCID: PMC8924212 DOI: 10.1038/s41598-022-08255-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 03/01/2022] [Indexed: 12/11/2022] Open
Abstract
Chronic gastrointestinal (GI) diseases are the most common diseases in captive common marmosets. To understand the role of the microbiome in GI diseases, we characterized the gut microbiome of 91 healthy marmosets (303 samples) and 59 marmosets diagnosed with inflammatory bowel disease (IBD) (200 samples). Healthy marmosets exhibited "humanized," Bacteroidetes-dominant microbiomes. After up to 2 years of standardized diet, housing and husbandry, marmoset microbiomes could be classified into four distinct marmoset sources based on Prevotella and Bacteroides levels. Using a random forest (RF) model, marmosets were classified by source with an accuracy of 93% with 100% sensitivity and 95% specificity using abundance data from 4 Prevotellaceae amplicon sequence variants (ASVs), as well as single ASVs from Coprobacter, Parabacteroides, Paraprevotella, Phascolarctobacterium, Oribacterium and Fusobacterium. A single dysbiotic IBD state was not found across all marmoset sources, but IBD was associated with lower alpha diversity and a lower Bacteroides:Prevotella copri ratio within each source. IBD was highest in a Prevotella-dominant cohort, and consistent with Prevotella-linked diseases, pro-inflammatory genes in the jejunum were upregulated. RF analysis of serum biomarkers identified serum calcium, hemoglobin and red blood cell (RBC) counts as potential biomarkers for marmoset IBD. This study characterizes the microbiome of healthy captive common marmosets and demonstrates that source-specific microbiomes can be retained despite standardized diets and husbandry practices. Marmosets with IBD had decreased alpha diversity and a shift in the ratio of Bacteroides:Prevotella copri compared to healthy marmosets.
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Affiliation(s)
- Alexander Sheh
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Stephen C Artim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
- Merck Research Laboratories, Merck, South San Francisco, CA, USA
| | - Monika A Burns
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Jose Arturo Molina-Mora
- Centro de Investigación en Enfermedades Tropicales (CIET), Universidad de Costa Rica, San José, Costa Rica
| | - Mary Anne Lee
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biological Sciences, Wellesley College, Wellesley, MA, USA
| | - JoAnn Dzink-Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | - James G Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA.
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30
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Gori E, Lippi I, Ansaldo G, Gianella P, Perondi F, Pierini A, Marchetti V. Alterations of selected serum biochemical and urinary parameters in dogs with chronic enteropathy. Open Vet J 2022; 12:578-583. [PMID: 36118717 PMCID: PMC9473382 DOI: 10.5455/ovj.2022.v12.i4.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/22/2022] [Indexed: 12/03/2022] Open
Abstract
Background: No specific study on concurrent nephropathy has been conducted in dogs with chronic enteropathy (CE), except for soft-coated Wheaten Terriers. Moreover, limited information exists regarding the urinary profile in dogs with CE. Aim: To describe, compare, and discuss the alterations in selected serum biochemical and urinary parameters in dogs with CE. Methods: Multicentric retrospective study on dogs with CE diagnosed after exclusion of extra-gastrointestinal diseases. In addition, dogs with azotemia and lower urinary tract diseases were excluded. Information on canine chronic enteropathy clinical activity index (CCECAI) score, muscular condition score (MCS), presence of glycosuria, proteinuria [urine protein-to-creatinine (UPC) ratio > 0.5], and/or cylindruria (>1–2 casts/hpf) at diagnosis were gleaned from the medical records. Dogs were retrospectively classified as food-responsive enteropathy, immunosuppressant-responsive enteropathy, or nonresponsive enteropathy based on the presence of gastrointestinal histological inflammation and the treatment response. In addition, based on the serum albumin concentration (ALB), dogs were classified as having protein-losing enteropathy (PLE). Results: Ninety CE dogs were included. Fifty-two dogs had mild-to-severely decreased MCS and 38 dogs showed altered urinary parameters. No significant associations were found between CCECAI and altered urinary parameters. No significant association was found between PLE dogs and altered urinary parameters. PLE dogs showed higher prevalence of proteinuria than non-PLE dogs (p = 0.03; OR = 2.8; 95% CI = 1–6.8). Conclusion: Despite the presence of altered urinary profile in dogs with CE, further studies are needed to explore a possible link between gastrointestinal and renal inflammation.
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Affiliation(s)
- Eleonora Gori
- Department of Veterinary Sciences, Veterinary Teaching Hospital “Mario Modenato”, University of Pisa, Pisa, Italy
| | - Ilaria Lippi
- Department of Veterinary Sciences, Veterinary Teaching Hospital “Mario Modenato”, University of Pisa, Pisa, Italy
| | - Giulia Ansaldo
- Department of Veterinary Sciences, Veterinary Teaching Hospital “Mario Modenato”, University of Pisa, Pisa, Italy
| | - Paola Gianella
- Department of Veterinary Sciences, Veterinary Teaching Hospital, University of Turin, Torino, Italy
| | - Francesca Perondi
- Department of Veterinary Sciences, Veterinary Teaching Hospital “Mario Modenato”, University of Pisa, Pisa, Italy
| | - Alessio Pierini
- Department of Veterinary Sciences, Veterinary Teaching Hospital “Mario Modenato”, University of Pisa, Pisa, Italy
- Corresponding Author: Alessio Pierini. Department of Veterinary Sciences, Veterinary Teaching Hospital “Mario Modenato”, University of Pisa, Pisa, Italy.
| | - Veronica Marchetti
- Department of Veterinary Sciences, Veterinary Teaching Hospital “Mario Modenato”, University of Pisa, Pisa, Italy
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31
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Omer MG, Khalafalla AI. Epidemiology and laboratory diagnosis of very virulent infectious bursal disease virus in vaccinated chickens in Khartoum, Sudan. Open Vet J 2022; 12:33-43. [PMID: 35342736 PMCID: PMC8956233 DOI: 10.5455/ovj.2022.v12.i1.5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 12/12/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Infectious Bursal Disease (IBD, Gumboro disease) has become more severe than in early outbreaks in the 1980s. The present research aims to study the epidemiology of IBD in Khartoum state and compare some commonly used laboratory techniques for diagnosis. METHOD We collected epidemiological data from 30 farms that showed signs suggestive of IBD, estimated the morbidity and mortality rates, and interviewed the owners about the type and the doses of the used vaccines. We collected bursas of Fabricius for virus assays and histopathology. Samples positive in the agar gel immunodiffusion (AGID) test were inoculated onto chicken embryo fibroblast cell culture and embryonated chicken eggs. Twenty-two-day-old chicks were infected experimentally with three selected isolates, and morbidity and mortality rates were compared. RESULTS The results showed that 70% of outbreaks occurred between 6 and 8 weeks of age, and the mean mortality rate was 51%. Epidemiologic, clinical, gross, and histopathological findings were characteristic of the severe disease caused by the very virulent IBDvirus (vvIBDV). The farms that used intermediate or the intermediate plus vaccines had lowered mortality compared with the farms that used intermediate vaccines. The AGID was found more sensitive than the counter-immuno-electrophoresis (CIEP) since it detected 83.4% of the IBDV antigen in the samples while the CIEP detected 66.7% of the samples. The reverse transcriptase polymerase chain reaction (RT-PCR) was found to be rapid, specific, and was more sensitive detecting 100% of the tested samples. Virus isolation in embryonated eggs and cell culture was not successful. CONCLUSION A vvIBDV is responsible for the recent outbreaks of the disease in Sudan, resulting in a mean high mortality rate of 51%, even in vaccinated flocks. The RT-PCR and AGID are the best methods for laboratory confirmation.
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Affiliation(s)
- Mohammed Gasim Omer
- Department of Microbiology, Faculty of Veterinary Medicine, University of Khartoum, Khartoum, Sudan
| | - Abdelmalik Ibrahim Khalafalla
- Department of Microbiology, Faculty of Veterinary Medicine, University of Khartoum, Khartoum, Sudan
- Veterinary laboratories Division, Abu Dhabi Agriculture and Food Safety Authority, Abu Dhabi, United Arab Emirates
- Corresponding Author: Abdelmalik Ibrahim Khalafalla. Abu Dhabi Agriculture and Food Safety Authority, Abu Dhabi, United Arab Emirates.
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Villagrán CC, Vogt D, Gupta A, Fernández EA. Inflammatory bowel disease characterized by multisystemic eosinophilic epitheliotropic disease (MEED) in a horse in Saskatchewan, Canada. Can Vet J 2021; 62:1190-1194. [PMID: 34728845 PMCID: PMC8543654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A 3-year-old Quarter Horse gelding was evaluated for chronic weight loss, diarrhea, and pruritus. Physical examination revealed several ulcerative lesions on the skin and mucosal membranes. Diagnostic imaging findings were consistent with enteritis, typhlitis, and colitis. Multisystemic eosinophilic epitheliotropic disease (MEED) was diagnosed upon necropsy. This disease may be considered a form of equine inflammatory bowel disease complex which can be challenging to diagnose, requiring histological assessment, and in some cases, the use of immunohistochemical markers. Key clinical message: Multisystemic eosinophilic epitheliotropic disease is challenging to diagnose but should be considered in horses with chronic weight loss that fail to respond to conventional treatment for concurrent diarrhea and skin lesions.
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Affiliation(s)
- Claudia Cruz Villagrán
- Department of Large Animal Clinical Sciences (Cruz Villagrán, Vogt) and Department of Veterinary Pathology (Gupta, Aburto), Western College of Veterinary Medicine, The University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4
| | - Debora Vogt
- Department of Large Animal Clinical Sciences (Cruz Villagrán, Vogt) and Department of Veterinary Pathology (Gupta, Aburto), Western College of Veterinary Medicine, The University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4
| | - Ashish Gupta
- Department of Large Animal Clinical Sciences (Cruz Villagrán, Vogt) and Department of Veterinary Pathology (Gupta, Aburto), Western College of Veterinary Medicine, The University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4
| | - Enrique Aburto Fernández
- Department of Large Animal Clinical Sciences (Cruz Villagrán, Vogt) and Department of Veterinary Pathology (Gupta, Aburto), Western College of Veterinary Medicine, The University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4
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Heilmann RM, Becher A, Dengler F. Electrolyte imbalances in dogs with chronic inflammatory enteropathies. Top Companion Anim Med 2021; 46:100597. [PMID: 34710633 DOI: 10.1016/j.tcam.2021.100597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/11/2021] [Revised: 09/12/2021] [Accepted: 10/21/2021] [Indexed: 11/17/2022]
Abstract
Inflammatory bowel diseases (IBD) in humans are associated with electrolyte shifts and diarrhea. Chronic inflammatory enteropathies (CIE) in dogs produce inflammatory lesions usually located more diffusely throughout the gastrointestinal tract. The prevalence of electrolyte imbalances in canine CIE is unknown. We retrospectively evaluated serum electrolyte (Na+, Cl-, corrected Cl-, and K+) concentrations in 37 dogs with CIE. Hypokalemia was the most frequent electrolyte abnormality, affecting 7 (19%) CIE dogs and with no difference between food-responsive and immunosuppressant-responsive (IRE) cases. Hyponatremia was less common (14%) and predominantly seen with IRE; serum Na+ concentration correlated with the severity of diarrhea and duodenal histologic lesions. Hypo- (5%) and hyperchloridemia (11%) were also detected. Electrolyte imbalances occur with equal frequency in canine CIE and human IBD. Increased K+ secretion might exceed compromised Na+/Cl- absorption or K+ shifts might be more pronounced in canine CIE. Therefore, the mechanisms underlying CIE-associated diarrhea warrant further research.
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Affiliation(s)
- Romy M Heilmann
- Department for Small Animals, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Leipzig, Leipzig, SN, Germany.
| | - Anja Becher
- Department for Small Animals, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Leipzig, Leipzig, SN, Germany
| | - Franziska Dengler
- Institute of Physiology, Pathophysiology and Experimental Endocrinology, University of Veterinary Medicine, Vienna, Austria
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Estruch J, Johnson J, Ford S, Yoshimoto S, Mills T, Bergman P. Utility of the combined use of 3 serologic markers in the diagnosis and monitoring of chronic enteropathies in dogs. J Vet Intern Med 2021; 35:1306-1315. [PMID: 33960552 PMCID: PMC8163139 DOI: 10.1111/jvim.16132] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/26/2021] [Accepted: 04/07/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Dogs with chronic enteropathies (CE) displayed elevated IgA seropositivity against specific markers that can be used to develop a novel test. OBJECTIVE To assess a multivariate test to aid diagnosis of CE in dogs and to monitor treatment-related responses. ANIMALS One hundred fifty-seven dogs with CE/inflammatory bowel disease (IBD), 24 dogs non-IBD gastrointestinal disorders, and 33 normal dogs. METHODS Prospective, multicenter, clinical study that enrolled dogs with gastrointestinal disorders. Serum sample collected at enrollment and up to 3 months follow-up measuring OmpC (ACA), canine calprotectin (ACNA), and gliadin-derived peptides (AGA) by ELISA. RESULTS Seropositivity was higher in CE/IBD than normal dogs (66% vs 9% for ACA; 55% vs 15% for ACNA; and 75% vs 6% for AGA; P < .001). When comparing CE/IBD with non-IBD disease, ACA and ACNA displayed discriminating properties (66%, 55% vs 12.5%, 29% respectively) while AGA separated CE from normal cohorts (54% vs 6%). A 3-marker algorithm at cutoff of ACA > 15, ACNA > 6, AGA > 60 differentiates CE/IBD and normal dogs with 90% sensitivity and 96% specificity; and CE/IBD and non-IBD dogs with 80% sensitivity and 86% specificity. Titers decreased after treatment (47%-99% in ACA, 13%-88% in ACNA, and 30%-85% in AGA), changes that were concurrent with clinical improvements. CONCLUSION AND CLINICAL IMPORTANCE An assay based on combined measurements of ACA, ACNA, and AGA is useful as a noninvasive diagnostic test to distinguish dogs with CE/IBD. The test also has the potential to monitor response to treatment.
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Affiliation(s)
| | | | - Sarah Ford
- Department of Internal MedicineBlue Pearl SpecialtyScottsdaleArizonaUSA
| | - Sean Yoshimoto
- Department of Internal MedicineWest LA Animal HospitalLos AngelesCaliforniaUSA
| | - Tracy Mills
- Department of Clinical StudiesWest LA Animal HospitalLos AngelesCaliforniaUSA
| | - Philip Bergman
- Department of Internal MedicineKatonah Bedford Veterinary CenterNew YorkNew YorkUSA
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Abstract
Probiotics/or synbiotics products for small animals do not fulfill the criteria required to qualify as a probiotic. Studies explaining modes of action are lacking. Outcome measures are inconsistent, with some trials assessing only nonspecific routine diagnostic parameters or fecal scores. Preliminary evidence shows that specific preparations are beneficial in parvovirus infections and acute hemorrhagic diarrhea syndrome in dogs and in Tritrichomonas fetus infection in cats. In dogs, inflammatory bowel disease specific probiotics can decrease clinical severity. More studies focusing on functional outcomes in dogs and cats with well-defined diseases to allow evidence-based clinical use of probiotics and synbiotics are needed.
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Affiliation(s)
- Silke Salavati Schmitz
- Hospital for Small Animals, Royal (Dick) School of Veterinary Studies, The Roslin Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
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Benvenuti E, Pierini A, Benali SL, Gori E, Abramo F, Bottero E, Pietra M, Ruggiero P, Marchetti V. Evaluation of duodenal endoscopic and histologic findings, including counts of forkhead box P3-positive regulatory T cells, in dogs with immunosuppressant-responsive enteropathy. Am J Vet Res 2021; 82:218-224. [PMID: 33629898 DOI: 10.2460/ajvr.82.3.218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To prospectively evaluate the clinical and prognostic importance of duodenal endoscopic and histologic findings, including duodenal mucosal counts of forkhead box P3-positive regulatory T cells (Foxp3+ Tregs), in dogs with immunosuppressant-responsive enteropathy (IRE). ANIMALS 57 client-owned dogs with IRE. PROCEDURES The canine chronic enteropathy clinical activity index (CCECAI) was used to assess each dog when IRE was diagnosed (T0) and 1, 3, 6, and 12 months later. Dogs were grouped on the basis of clinical response (responder group vs nonresponder group) and 12-month long-term outcome (responded to treatment and did not relapse [good outcome group] vs did not respond to treatment or had relapsed [bad outcome group]). At T0, dogs underwent gastrointestinal endoscopy and endoscopic biopsy, with results for variables of duodenal endoscopic and histologic evaluations scored and compared across groups. RESULTS At T0, the overall median CCECAI score was 7; CCECAI score was not associated with clinical response or relapse. Dogs had significantly greater odds of being in the bad outcome group (vs the good outcome group) if they had a histologic score of 3 (OR, 3.5; 95% CI, 1.09 to 11.3). No differences in the counts of Foxp3+ Tregs were detected between groups. CONCLUSIONS AND CLINICAL RELEVANCE In dogs with IRE, results indicated that evaluation of Foxp3+ Tregs did not have prognostic value, whereas a duodenal histologic score of 3 could be a negative prognostic factor for response and relapse, and higher severity scores for intraepithelial lymphocytes and lamina propria lymphocytes and plasma cells in duodenal biopsy samples may be negatively associated with response.
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Becher A, Suchodolski JS, Steiner JM, Heilmann RM. Blood neutrophil-to-lymphocyte ratio (NLR) as a diagnostic marker in dogs with chronic enteropathy. J Vet Diagn Invest 2021; 33:516-527. [PMID: 33554784 DOI: 10.1177/1040638721992057] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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] [Indexed: 12/15/2022] Open
Abstract
Few routinely available biomarkers are clinically useful in assessing dogs with chronic enteropathy (CE) and aid in CE subclassification. The diagnostic potential of the blood neutrophil-to-lymphocyte ratio (NLR) has not been evaluated in canine CE. We evaluated the NLR in 93 dogs with CE (no steroid treatment for ≥2 wk prior) and tested for an association with clinical, clinicopathologic, and histologic characteristics and also with CE subclassification. NLR was significantly higher in CE dogs with severe clinical disease than dogs with mild clinical disease (p = 0.047). Hypoalbuminemia (p < 0.001), but not hypocobalaminemia, was associated with higher NLRs. NLR was correlated with fecal alpha1-proteinase inhibitor concentrations (ρ = 0.47) and the serum-to-fecal alpha1-proteinase inhibitor ratio (ρ = -0.48; both p < 0.001) but not with serum or fecal inflammatory markers nor with the overall histologic score (all p > 0.05). Dogs with steroid- or other immunosuppressant-responsive (IRE) or nonresponsive enteropathy (NRE) had significantly higher NLRs (median: 7.3) than dogs with food-responsive enteropathy (FRE; median: 3.0; p = 0.003), and a NLR ≥5.5 best distinguished both groups of dogs. No difference in NLR was detected between dogs with IRE and dogs diagnosed with NRE. These findings suggest that leukogram changes (i.e., NLR) could be clinically useful in canine CE, and that neutrophils might play a role in the systemic inflammatory response associated with canine CE. The NLR can be easily assessed on routine hematology and can potentially aid in the subclassification of dogs with CE based on the response to treatment.
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Affiliation(s)
- Anja Becher
- Department for Small Animals, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | - Jan S Suchodolski
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX
| | - Jörg M Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX
| | - Romy M Heilmann
- Department for Small Animals, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
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Konstantinidis AO, Adamama-Moraitou KK, Pardali D, Dovas CI, Brellou GD, Papadopoulos T, Jergens AE, Allenspach K, Rallis TS. Colonic mucosal and cytobrush sample cytokine mRNA expression in canine inflammatory bowel disease and their correlation with disease activity, endoscopic and histopathologic score. PLoS One 2021; 16:e0245713. [PMID: 33471872 PMCID: PMC7817028 DOI: 10.1371/journal.pone.0245713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 12/09/2020] [Indexed: 01/02/2023] Open
Abstract
Canine inflammatory bowel disease (IBD) is a group of chronic gastrointestinal disorders, the pathogenesis of which remains elusive, but it possibly involves the interaction of the intestinal immune system with luminal microbiota and food-derived antigens. Mucosal cytokines profiles in canine IBD have been investigated mainly in small intestinal disease, while data on cytokine profiles in large intestinal IBD are limited. The objective of this study was to measure colonic mucosal and cytobrush sample messenger (m)RNA expression of interleukin (IL)-1β, IL-2, IL-12p40, IL-23p19, tumor necrosis factor-alpha (TNF-α) and chemokine C-C motif ligand (CCL28) in dogs with IBD and healthy controls using quantitative real-time polymerase chain reaction (PCR), and assess their correlation with clinical disease activity, endoscopic and histopathologic score. Dogs with IBD had a significantly increased mRNA expression of IL-1β, IL-23p19 and CCL28 in the colonic mucosa, compared to healthy controls. None of the selected cytokines had significantly different mRNA expression in the colonic cytobrush samples between the two groups or between the colonic mucosa and cytobrush samples of dogs with IBD. Finally, there was a statistically significant correlation of clinical disease activity with endoscopic activity score and fibrosis and atrophy of the colonic mucosa in dogs with large intestinal IBD. IL-1β, IL-23p19 and CCL28 could play a role in the pathogenesis of canine large intestinal IBD. Colonic cytokine expression does not correlate with clinical disease activity and/or endoscopic score. However, clinical signs reflect the severity of endoscopic lesions.
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Affiliation(s)
- Alexandros O. Konstantinidis
- Companion Animal Clinic (Medicine Unit), School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
- * E-mail:
| | - Katerina K. Adamama-Moraitou
- Companion Animal Clinic (Medicine Unit), School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitra Pardali
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Chrysostomos I. Dovas
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgia D. Brellou
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theologos Papadopoulos
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Albert E. Jergens
- Department of Clinical Sciences, Iowa State University College of Veterinary Medicine, Ames, IA, United States of America
| | - Karin Allenspach
- Department of Clinical Sciences, Iowa State University College of Veterinary Medicine, Ames, IA, United States of America
| | - Timoleon S. Rallis
- Companion Animal Clinic (Medicine Unit), School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Marsilio S, Dröes FC, Dangott L, Chow B, Hill S, Ackermann M, Estep JS, Lidbury JA, Suchodolski JS, Steiner JM. Characterization of the intestinal mucosal proteome in cats with inflammatory bowel disease and alimentary small cell lymphoma. J Vet Intern Med 2021; 35:179-189. [PMID: 33471936 PMCID: PMC7848303 DOI: 10.1111/jvim.16003] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/27/2020] [Accepted: 12/03/2020] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Current tests for diagnosis and differentiation of lymphoplasmacytic enteritis (LPE) and small cell lymphoma (SCL) in cats are expensive, invasive, and lack specificity. The identification of less invasive, more reliable biomarkers would facilitate diagnosis. OBJECTIVES To characterize the mucosal proteome in endoscopically obtained, small intestinal tissue biopsy specimens. We hypothesized that differentially expressed proteins could be identified and serve as biomarker candidates for the differentiation of LPE and SCL in cats. ANIMALS Six healthy control cats, 6 cats with LPE, and 8 cats with SCL. METHODS The mucosal proteome was analyzed using 2-dimensional fluorescence difference gel electrophoresis (2D DIGE) and nanoflow liquid chromatography tandem mass spectrometry. For 5 proteins, results were verified by Western blot analysis. RESULTS A total of 2349 spots were identified, of which 9 were differentially expressed with a ≥2-fold change between healthy cats and cats with LPE and SCL (.01 < P < .001). Eight of these 9 spots were also differentially expressed between cats with LPE and cats with SCL (P .001 < P < .04). However, Western blot analysis for malate dehydrogenase-1, malate dehydrogenase-2, apolipoprotein, annexin IV, and annexin V did not confirm significant differential protein expression for any of the 5 proteins assessed. CONCLUSIONS AND CLINICAL IMPORTANCE Two-D DIGE did not identify potential biomarker candidates in the intestinal mucosa of cats with LPE and SCL. Future studies should focus on different techniques to identify biomarker candidates for cats with chronic enteropathies (CE).
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Affiliation(s)
- Sina Marsilio
- Department of Medicine and EpidemiologySchool of Veterinary Medicine, University of CaliforniaDavisCAUSA
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesTexas A&M College of Veterinary Medicine & Biomedical Sciences, Texas A&M UniversityCollege StationTexasUSA
| | - Floris C. Dröes
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesTexas A&M College of Veterinary Medicine & Biomedical Sciences, Texas A&M UniversityCollege StationTexasUSA
| | - Lawrence Dangott
- Protein Chemistry Laboratory, Department of Biochemistry & BiophysicsTexas A&M UniversityCollege StationTexasUSA
| | - Betty Chow
- Veterinary Specialty HospitalSan DiegoCaliforniaUSA
- VCA Animal Specialty & Emergency CenterLos AngelesCaliforniaUSA
| | - Steve Hill
- Veterinary Specialty HospitalSan DiegoCaliforniaUSA
- Flagstaff Veterinary Internal Medicine ConsultingFlagstaffArizonaUSA
| | - Mark Ackermann
- Oregon Veterinary Diagnostic LaboratoryCarlson College of Veterinary Medicine, Oregon State UniversityCorvallisOregonUSA
| | | | - Jonathan A. Lidbury
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesTexas A&M College of Veterinary Medicine & Biomedical Sciences, Texas A&M UniversityCollege StationTexasUSA
| | - Jan S. Suchodolski
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesTexas A&M College of Veterinary Medicine & Biomedical Sciences, Texas A&M UniversityCollege StationTexasUSA
| | - Jörg M. Steiner
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesTexas A&M College of Veterinary Medicine & Biomedical Sciences, Texas A&M UniversityCollege StationTexasUSA
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Rana T. Unravelling of nitric oxide signalling: A potential biomarker with multifaceted complex mechanism associated with canine inflammatory bowel disease (IBD). Anaerobe 2020; 66:102288. [PMID: 33132137 DOI: 10.1016/j.anaerobe.2020.102288] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/14/2020] [Accepted: 10/22/2020] [Indexed: 01/16/2023]
Abstract
Inflammatory bowel disease (IBD) is an important chronic condition associated with the infection affecting the gastrointestinal tract (G.I.) in dogs. Several factors' viz. gastrointestinal tract lymphoid tissue (GALT), permeability defects, genetic, ischemic, biochemical, psychosomatic disorders, infectious and parasitic agents, dietary allergies, and adverse drug reactions are associated with inflammatory bowel disease. The most noticeable clinical signs are vomiting, diarrhea, changes in appetite, weight loss, anorexia, ascites and peripheral edema. Nitric oxide (NO), a pleiotropic free radical messenger molecule plays an immense role in playing mucosal inflammation in the intestine through activation of NO synthase enzyme (iNOS). The complex mechanism associated with inflammation in the G.I. tract is also correlated with the expression of iNOS, enzymatic activity, and NO production. NO exerts a beneficial role in maintaining epithelial permeability as well as the immune response in acute colitis. But the excessive production of NO causes adverse effects. In the review, the author suggests that a complex phenomenon is associated with competing biochemical pathways triggered by NO through the regulation of mucosal inflammation in inflammatory bowel disease. This review is a unique compilation about the role of NO in the pathogenesis of inflammatory bowel disease of the dogs.
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Affiliation(s)
- Tanmoy Rana
- Department of Veterinary Clinical Complex (V.M.E.J.), West Bengal University of Animal & Fishery Sciences, Kolkata, India.
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Konstantinidis AΟ, Pardali D, Adamama-Moraitou KK, Gazouli M, Dovas CI, Legaki E, Brellou GD, Savvas I, Jergens AE, Rallis TS, Allenspach K. Colonic mucosal and serum expression of microRNAs in canine large intestinal inflammatory bowel disease. BMC Vet Res 2020; 16:69. [PMID: 32087719 PMCID: PMC7035774 DOI: 10.1186/s12917-020-02287-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 02/13/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Canine inflammatory bowel disease (IBD) is a group of chronic gastrointestinal (GI) disorders of still largely unknown etiology. Canine IBD diagnosis is time-consuming and costly as other diseases with similar signs should be initially excluded. In human IBD microRNA (miR) expression changes have been reported in GI mucosa and blood. Thus, there is a possibility that miRs may provide insight into disease pathogenesis, diagnosis and even treatment of canine IBD. The aim of this study was to determine the colonic mucosal and serum relative expression of a miRs panel in dogs with large intestinal IBD and healthy control dogs. RESULTS Compared to healthy control dogs, dogs with large intestinal IBD showed significantly increased relative expression of miR-16, miR-21, miR-122 and miR-147 in the colonic mucosa and serum, while the relative expression of miR-185, miR-192 and miR-223 was significantly decreased. Relative expression of miR-146a was significantly increased only in the serum of dogs with large intestinal IBD. Furthermore, serum miR-192 and miR-223 relative expression correlated to disease activity and endoscopic score, respectively. CONCLUSION Our data suggest the existence of dysregulated miRs expression patterns in canine IBD and support the potential future use of serum miRs as useful noninvasive biomarkers.
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Affiliation(s)
- Alexandros Ο Konstantinidis
- Companion Animal Clinic (Medicine Unit), School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitra Pardali
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina K Adamama-Moraitou
- Companion Animal Clinic (Medicine Unit), School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Maria Gazouli
- Laboratory of Biology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Chrysostomos I Dovas
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Evangelia Legaki
- Laboratory of Biology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Georgia D Brellou
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Savvas
- Companion Animal Clinic (Anesthesia and Intensive Care Unit), School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Albert E Jergens
- Departments of Veterinary Clinical Sciences, Iowa State University College of Veterinary Medicine, Ames, IA, USA
| | - Timoleon S Rallis
- Companion Animal Clinic (Medicine Unit), School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Karin Allenspach
- Departments of Veterinary Clinical Sciences, Iowa State University College of Veterinary Medicine, Ames, IA, USA.
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Atherly T, Rossi G, White R, Seo YJ, Wang C, Ackermann M, Breuer M, Allenspach K, Mochel JP, Jergens AE. Glucocorticoid and dietary effects on mucosal microbiota in canine inflammatory bowel disease. PLoS One 2019; 14:e0226780. [PMID: 31887117 PMCID: PMC6936794 DOI: 10.1371/journal.pone.0226780] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 08/21/2019] [Accepted: 12/03/2019] [Indexed: 01/14/2023] Open
Abstract
The pathogenesis of canine inflammatory bowel disease (IBD) involves complex interactions between mucosal immunity and the intestinal microbiota. Glucocorticoids are commonly administered to reduce mucosal inflammation and gastrointestinal signs. The study objective was to evaluate the effects of diet and oral prednisone on the spatial distribution of mucosal bacteria in IBD dogs. Eight dogs diagnosed with IBD were treated with immunosuppressive doses of prednisone. The mucosal microbiota from endoscopic biopsies of IBD dogs and healthy controls (HC; n = 15 dogs) was evaluated by fluorescence in situ hybridization (FISH) targeting the 16S rRNA genes of total bacteria and bacterial species relevant in canine/human IBD. Apicaljunction protein (AJP) expression using immunohistochemistry investigated the effect of medical therapy on intestinal barrier integrity. All IBD dogs had a reduction in GI signs following diet and prednisone therapy compared with baseline CIBDAI scores (P < 0.05). The mucosal microbiota of HC and diseased dogs was most abundant in free and adherent mucus. Only Lactobacilli were increased (P < 0.05) in the adherent mucus of IBD dogs compared to HC. The spatial distribution of mucosal bacteria was significantly different (P < 0.05) in IBD dogs following prednisone therapy, with higher numbers of Bifidobacteria and Streptococci detected across all mucosal compartments and increased numbers of Bifidobacterium spp., Faecalibacterium spp., and Streptococcus spp. present within adherent mucus. Differences in intestinal AJPs were detected with expression of occludin increased (P < 0.05) in IBD dogs versus HC. The expressions of occludin and E-cadherin were increased but zonulin decreased (P < 0.05 for each) in IBD dogs following prednisone therapy. In conclusion, the spatial distribution of mucosal bacteria differs between IBD and HC dogs, and in response to diet and glucocorticoid administration. Medical therapy was associated with beneficial changes in microbial community structure and enhanced mucosal epithelial AJP expression.
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Affiliation(s)
- Todd Atherly
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Giacomo Rossi
- School of Biosciences and Veterinary Medicine, University of Camerino, Macerata, Italy
| | - Robin White
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Yeon-Jung Seo
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Chong Wang
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Mark Ackermann
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Mary Breuer
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Karin Allenspach
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Jonathan P. Mochel
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Albert E. Jergens
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
- * E-mail:
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Soontararak S, Chow L, Johnson V, Coy J, Webb C, Wennogle S, Dow S. Humoral immune responses against gut bacteria in dogs with inflammatory bowel disease. PLoS One 2019; 14:e0220522. [PMID: 31369623 PMCID: PMC6675102 DOI: 10.1371/journal.pone.0220522] [Citation(s) in RCA: 11] [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: 03/21/2019] [Accepted: 07/17/2019] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) in dogs is associated with clinical signs of intestinal dysfunction, as well as abnormal lymphocytic and myeloid cell infiltrates in the small and/or large intestine. Thus, in many respects IBD in dogs resembles IBD in humans. However, the factors that trigger intestinal inflammation in dogs with IBD are not well understood and have been variously attributed to immune responses against dietary antigens or intestinal antigens. Previous studies in humans with IBD have documented increased production of IgG and IgA antibodies specific to intestinal bacteria, and this abnormal immune response has been linked to disease pathogenesis. Therefore, we investigated the humoral immune response against gut bacteria in dogs with IBD, using flow cytometry to quantitate IgG and IgA binding. Studies were also done to investigate the source of these antibodies (locally produced versus systemic production) and whether greater antibody binding to bacteria is associated with increased inflammatory responses. We found that dogs with IBD had significantly higher percentages and overall amounts of IgG bound to their intestinal bacteria compared to healthy dogs. Similarly, significantly higher percentages of bacteria were IgA+ bacteria were also found in dogs with IBD. Serum antibody recognition of gut bacteria was not different between healthy dogs and dogs with IBD, suggesting that anti-bacterial antibodies were primarily produced locally in the gut rather than systemically. Importantly, bacteria in the Actinobacteria phylum and in particular the genus Collinsella had significantly greater levels of antibody binding in dogs with IBD. Based on these findings, we concluded that antibody binding to commensal gut bacteria was significantly increased in dogs with IBD, that particular phyla were preferential targets for gut antibodies, and that anti-bacterial antibody responses may play an important role in regulating gut inflammation.
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Affiliation(s)
- Sirikul Soontararak
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Lyndah Chow
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Valerie Johnson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Jonathan Coy
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Craig Webb
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Sara Wennogle
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Steven Dow
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
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Heilmann RM, Nestler J, Schwarz J, Grützner N, Ambrus A, Seeger J, Suchodolski JS, Steiner JM, Gurtner C. Mucosal expression of S100A12 (calgranulin C) and S100A8/A9 (calprotectin) and correlation with serum and fecal concentrations in dogs with chronic inflammatory enteropathy. Vet Immunol Immunopathol 2019; 211:64-74. [PMID: 31084897 DOI: 10.1016/j.vetimm.2019.04.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 01/11/2019] [Revised: 03/24/2019] [Accepted: 04/14/2019] [Indexed: 12/23/2022]
Abstract
S100A12 and S100A8/A9 (calprotectin) are released from activated mononuclear cells and belong to the group of damage associated molecular patterns. Fecal S100A12 and S100A8/A9 concentrations have been suggested as biomarkers of intestinal inflammation in dogs with chronic inflammatory enteropathies (CIE). However, the mucosal cellular infiltrate in dogs with CIE is primarily lymphocytic-plasmacytic. Whether fecal S100A12 and S100A8/A9 levels reflect the number and/or activity of intestinal mucosal mononuclear cells, or whether these proteins are also produced by other cells has not been investigated. Thus, the aim of this study was to evaluate intestinal mucosal S100A12 and S100A8/A9 positivity and a potential relationship with the respective protein concentrations in serum and fecal samples in dogs with CIE. Serum (single sample), fecal samples (from 3 consecutive days), and gastrointestinal tissue biopsies (i.e., stomach, duodenum, ileum, and colon) were evaluated from 21 dogs with CIE. Serum and fecal S100A12 and S100A8/A9 concentrations were measured by analytically validated in-house ELISAs. Tissue biopsies underwent routine histopathology and immunohistochemical evaluation for S100A12 and S100A8/A9 positivity (S100A12+ and S100A8/A9+, each recorded as positive cells/mm2). S100A12+ and S100A8/A9+ cells were identified in all segments of the gastrointestinal tract, but were predominantly localized in the lamina propria (LP). Duodenal LP S100A12 positivity correlated statistically significantly with that in the stomach and ileum (ρ = 0.66 and 0.69, both p < 0.01), but was inversely correlated with the severity of macrophage infiltration in the duodenum (ρ=-0.47, p = 0.042). Ileal LP S100A8/A9 positivity correlated positively with the extent of ileal neutrophil and macrophage infiltration (ρ=0.61, p = 0.047). Fecal S100A12 concentrations strongly correlated with the number of S100A12+ cells along the entire gastrointestinal tract (ρ = 0.76, p = 0.028), whereas serum S100A12 concentrations were inversely correlated to colonic S100A12+ cell counts (ρ=-0.50, p = 0.043). Mucosal S100A8/A9+ cell counts were not associated with the corresponding fecal or serum S100A8/A9 concentrations. These results suggest that the intestinal mucosa in dogs with CIE contains an increased number of activated (pro-inflammatory) phagocytes expressing and secreting the S100A12 protein, but the macrophage population seen on routine histopathology is predominantly mature (anti-inflammatory) with a reduced or absent expression of S100A12 and a normal or increased expression of S100A8/A9. However, the distribution of intestinal S100A8/A9 expression requires further study.
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Affiliation(s)
- Romy M Heilmann
- Department for Small Animals, College of Veterinary Medicine, University of Leipzig, Leipzig, SN, Germany.
| | - Jasmin Nestler
- Department for Small Animals, College of Veterinary Medicine, University of Leipzig, Leipzig, SN, Germany
| | - Jutta Schwarz
- Department for Small Animals, College of Veterinary Medicine, University of Leipzig, Leipzig, SN, Germany
| | - Niels Grützner
- Department of Animal Sciences, University of Halle-Wittenberg, Halle, SA, Germany
| | - Andy Ambrus
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Johannes Seeger
- Institute of Anatomy, Histology and Embryology, College of Veterinary Medicine, University of Leipzig, Leipzig, SN, Germany
| | - Jan S Suchodolski
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Jörg M Steiner
- Gastrointestinal Laboratory, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Corinne Gurtner
- Institute of Animal Pathology, Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, BE, Switzerland
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Kalenyak K, Heilmann RM, van de Lest CHA, Brouwers JF, Burgener IA. Comparison of the systemic phospholipid profile in dogs diagnosed with idiopathic inflammatory bowel disease or food-responsive diarrhea before and after treatment. PLoS One 2019; 14:e0215435. [PMID: 30990833 PMCID: PMC6467395 DOI: 10.1371/journal.pone.0215435] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 07/29/2018] [Accepted: 04/02/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Inflammatory bowel disease (IBD) and food-responsive diarrhea (FRD) are common chronic enteropathies in dogs, of which the exact pathogenesis has not been fully understood. In people dyslipidemia has been reported in patients with IBD, and potential therapeutic benefits of polyunsaturated fatty acids (PUFA) in the treatment of IBD have been investigated. Studies on the phospholipid profile in dogs with IBD and FRD are still lacking. AIM To investigate the systemic phospholipid profile of dogs with IBD or FRD and to evaluate possible differences in phospholipids before and after treatment. METHODS The phospholipids in whole blood and EDTA plasma of 32 dogs diagnosed with either IBD (n = 16) or FRD (n = 16) were analyzed by hydrophilic interaction liquid chromatography (HILIC) prior to and after initiation of treatment, which included an elimination diet enriched with PUFAs. RESULTS A clear separation of the phospholipids between whole blood and plasma was demonstrated on principal component analysis plots. In addition to the type of specimen, treatment and disease severity were the most significant factors determining the variance of the phospholipid profile. An increase in lysolipids was observed after treatment. The phosphatidylcholine (PC) species changed from PC 38:4 before treatment to mainly lysophosphatidylcholine 18:0 after treatment. Furthermore, several differences in the abundance of individual phospholipids were identified between dogs with IBD and dogs with FRD and between treatment statuses using random forest analysis. CONCLUSION Significant variances were identified in the phospholipid profiles of dogs with IBD and FRD. These were particularly determined by type of specimen used, disease severity and treatment status. After treatment, a shift of phospholipid species towards lysophosphatidylcholine 18:0 was observed. Future studies should further investigate the role of lipids in the pathophysiology of IBD and FRD as well as their potential therapeutic benefits.
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Affiliation(s)
- Katja Kalenyak
- Department for Small Animals, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Leipzig, Leipzig, Saxony, Germany
- * E-mail:
| | - Romy M. Heilmann
- Department for Small Animals, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Leipzig, Leipzig, Saxony, Germany
| | - Chris H. A. van de Lest
- Faculty of Veterinary Medicine, Department of Biochemistry & Cell Biology, Lipidomics Facility, Utrecht University, CM Utrecht, Netherlands
| | - Jos F. Brouwers
- Faculty of Veterinary Medicine, Department of Biochemistry & Cell Biology, Lipidomics Facility, Utrecht University, CM Utrecht, Netherlands
| | - Iwan A. Burgener
- Division of Small Animal Internal Medicine, Department for Companion Animals and Horses, Vetmeduni Vienna, Vienna, Austria
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Giaretta PR, Rech RR, Guard BC, Blake AB, Blick AK, Steiner JM, Lidbury JA, Cook AK, Hanifeh M, Spillmann T, Kilpinen S, Syrjä P, Suchodolski JS. Comparison of intestinal expression of the apical sodium-dependent bile acid transporter between dogs with and without chronic inflammatory enteropathy. J Vet Intern Med 2018; 32:1918-1926. [PMID: 30315593 PMCID: PMC6271328 DOI: 10.1111/jvim.15332] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/28/2018] [Accepted: 09/05/2018] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Intestinal absorption of bile acids is mediated by the apical sodium-dependent bile acid transporter (ASBT). Fecal bile acid dysmetabolism has been reported in dogs with chronic inflammatory enteropathy (CIE). OBJECTIVE Characterization of ASBT distribution along the intestinal tract of control dogs and comparison to dogs with CIE. ANIMALS Twenty-four dogs with CIE and 11 control dogs. METHODS The ASBT mRNA and protein expression were assessed using RNA in situ hybridization and immunohistochemistry, respectively. The concentrations of fecal bile acids were measured by gas chromatography-mass spectrometry. The fecal microbiota dysbiosis index was assessed with a quantitative polymerase chain reaction panel. RESULTS In control dogs, ASBT mRNA expression was observed in enterocytes in all analyzed intestinal segments, with highest expression in the ileum. The ASBT protein expression was restricted to enterocytes in the ileum, cecum, and colon. Dogs with CIE had significantly decreased expression of ASBT protein in the ileum (P = .001), which was negatively correlated with histopathological score (ρ = -0.40; Pcorr = .049). Additionally, dogs with CIE had a significantly increased percentage of primary bile acids in feces compared to controls (P = .04). The fecal dysbiosis index was significantly higher in dogs with CIE than in control dogs (P = .01). CONCLUSIONS AND CLINICAL IMPORTANCE These findings indicate that ileal protein expression of ASBT is downregulated in dogs with CIE. This change may be linked to the inflammatory process, intestinal dysbiosis, and fecal bile acid dysmetabolism observed in these patients.
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Affiliation(s)
- Paula R. Giaretta
- Department of Veterinary PathobiologyCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Raquel R. Rech
- Department of Veterinary PathobiologyCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Blake C. Guard
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Amanda B. Blake
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Anna K. Blick
- Department of Veterinary PathobiologyCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Jörg M. Steiner
- Department of Veterinary PathobiologyCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Jonathan A. Lidbury
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Audrey K. Cook
- Department of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Mohsen Hanifeh
- Department of Equine and Small Animal Medicine, Faculty of Veterinary MedicineUniversity of HelsinkiHelsinkiFinland
| | - Thomas Spillmann
- Department of Equine and Small Animal Medicine, Faculty of Veterinary MedicineUniversity of HelsinkiHelsinkiFinland
| | - Susanne Kilpinen
- Department of Equine and Small Animal Medicine, Faculty of Veterinary MedicineUniversity of HelsinkiHelsinkiFinland
| | - Pernilla Syrjä
- Department of Veterinary Biosciences, Faculty of Veterinary MedicineUniversity of HelsinkiHelsinkiFinland
| | - Jan S. Suchodolski
- Gastrointestinal Laboratory, Department of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
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Peiravan A, Bertolini F, Rothschild MF, Simpson KW, Jergens AE, Allenspach K, Werling D. Genome-wide association studies of inflammatory bowel disease in German shepherd dogs. PLoS One 2018; 13:e0200685. [PMID: 30028859 PMCID: PMC6054420 DOI: 10.1371/journal.pone.0200685] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 05/14/2018] [Indexed: 12/12/2022] Open
Abstract
Canine Inflammatory Bowel Disease (IBD) is considered a multifactorial disease caused by complex interactions between the intestinal immune system, intestinal microbiota and environmental factors in genetically susceptible individuals. Although IBD can affect any breed, German shepherd dogs (GSD) in the UK are at increased risk of developing the disease. Based on previous evidence, the aim of the present study was to identify single nucleotide polymorphisms (SNPs), which may confer genetic susceptibility or resistance to IBD using a genome-wide association study (GWAS). Genomic DNA was extracted from EDTA blood or saliva samples of 96 cases and 98 controls. Genotyping of cases and controls was performed on the Canine Illumina HD SNP array and data generated was analyzed using PLINK. Several SNPs and regions on chromosomes 7,9,11 and 13 were detected to be associated with IBD using different SNP-by-SNP association methods and FST windows approach. Searching one Mb up-and down-stream of the most significant SNPs, as identified by single SNP analysis as well as 200Kb before and after the start and the end position of the associated regions identified by FST windows approach, we identified 63 genes. Using a combination of pathways analysis and a list of genes that have been reported to be involved in human IBD, we identified 16 candidate genes potentially associated with IBD in GSD.
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Affiliation(s)
- Atiyeh Peiravan
- Department of Pathology and Pathogen Biology, Royal Veterinary College, University of London, North Mymms, United Kingdom
| | - Francesca Bertolini
- Department of Animal Science, Iowa State University, Ames, Iowa, United States of America
| | - Max F. Rothschild
- Department of Animal Science, Iowa State University, Ames, Iowa, United States of America
| | - Kenneth W. Simpson
- College of Veterinary Medicine, Cornell University, Ithaca, NY, United States of America
| | - Albert E. Jergens
- College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Karin Allenspach
- College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Dirk Werling
- Department of Pathology and Pathogen Biology, Royal Veterinary College, University of London, North Mymms, United Kingdom
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Heilmann RM, Berghoff N, Mansell J, Grützner N, Parnell NK, Gurtner C, Suchodolski JS, Steiner JM. Association of fecal calprotectin concentrations with disease severity, response to treatment, and other biomarkers in dogs with chronic inflammatory enteropathies. J Vet Intern Med 2018; 32:679-692. [PMID: 29460444 PMCID: PMC5866976 DOI: 10.1111/jvim.15065] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 01/01/2018] [Accepted: 01/16/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Calprotectin is a marker of inflammation, but its clinical utility in dogs with chronic inflammatory enteropathies (CIE) is unknown. OBJECTIVE Evaluation of fecal calprotectin in dogs with biopsy-confirmed CIE. ANIMALS 127 dogs. METHODS Prospective case-control study. Dogs were assigned a canine chronic enteropathy clinical activity index (CCECAI) score, and histologic lesions severity was assessed. Fecal calprotectin, fecal S100A12, and serum C-reactive protein (CRP) were measured. Food- or antibiotic-responsive cases (FRE/ARE, n = 13) were distinguished from steroid-/immunosuppressant-responsive or -refractory cases (SRE/IRE, n = 20). Clinical response to treatment in SRE/IRE dogs was classified as complete remission (CR), partial response (PR), or no response (NR). RESULTS Fecal calprotectin correlated with CCECAI (ρ = 0.27, P = .0065) and fecal S100A12 (ρ = 0.90, P < .0001), some inflammatory criteria, and cumulative inflammation scores, but not serum CRP (ρ = 0.16, P = .12). Dogs with SRE/IRE had higher fecal calprotectin concentrations (median: 2.0 μg/g) than FRE/ARE dogs (median: 1.4 μg/g), and within the SRE/IRE group, dogs with PR/NR had higher fecal calprotectin (median: 37.0 μg/g) than dogs with CR (median: 1.6 μg/g). However, both differences did not reach statistical significance (both P = .10). A fecal calprotectin ≥15.2 μg/g separated both groups with 80% sensitivity (95% confidence interval [95%CI]: 28%-100%) and 75% specificity (95%CI: 43%-95%). CONCLUSIONS AND CLINICAL IMPORTANCE Fecal calprotectin could be a useful surrogate marker of disease severity in dogs with CIE, but larger longitudinal studies are needed to evaluate its utility in predicting the response to treatment.
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Affiliation(s)
- Romy M. Heilmann
- Small Animal ClinicCollege of Veterinary Medicine, University of LeipzigLeipzigSaxonyGermany
- Gastrointestinal LaboratoryCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Nora Berghoff
- Gastrointestinal LaboratoryCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
- Department of Pathobiology & Diagnostic InvestigationCollege of Veterinary Medicine, Michigan State UniversityEast LansingMichigan
| | - Joanne Mansell
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical SciencesTexas A&M UniversityCollege StationTexas
| | - Niels Grützner
- Gastrointestinal LaboratoryCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle‐WittenbergHalle (Saale)Saxony‐AnhaltGermany
| | - Nolie K. Parnell
- Small Animal Veterinary Teaching Hospital, College of Veterinary Medicine, Purdue UniversityWest LafayetteIndiana
| | - Corinne Gurtner
- Institute of Animal Pathology, Department of Infectious Diseases and PathobiologyVetsuisse Faculty Bern, University of BernBernSwitzerland
- Institute of Veterinary Pathology, College of Veterinary Medicine, Freie Universität BerlinBerlinGermany
| | - Jan S. Suchodolski
- Gastrointestinal LaboratoryCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
| | - Jörg M. Steiner
- Gastrointestinal LaboratoryCollege of Veterinary Medicine and Biomedical Sciences, Texas A&M UniversityCollege StationTexas
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Doss GA, Mans C, Johnson L, Pinkerton ME, Hardie RJ, Sladky KK. Diagnosis and management of inflammatory bowel disease in a harpy eagle (Harpia harpyja) with suspected fenbendazole toxicosis. J Am Vet Med Assoc 2018; 252:336-342. [PMID: 29346050 DOI: 10.2460/javma.252.3.336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
CASE DESCRIPTION A 14-year-old 4.1-kg (9.02-lb) male harpy eagle (Harpia harpyja) was evaluated because of vomiting, anorexia, lethargy, and weight loss (decrease of 0.35 kg [0.77 lb]) of 4 weeks' duration. The bird had previously been treated orally with fenbendazole after the initial onset of clinical signs. CLINICAL FINDINGS An initial CBC revealed marked heteropenia and anemia, but whole-body contrast-enhanced CT images and other diagnostic test findings were unremarkable. Clinical signs persisted, and additional diagnostic testing failed to reveal the cause. During celiotomy, a biopsy specimen of the duodenum was obtained for histologic examination, which revealed lymphoplasmacytic inflammation, consistent with inflammatory bowel disease (IBD). TREATMENT AND OUTCOME Prior to histopathologic diagnosis of IBD, barium sulfate administered via gavage resulted in a temporary improvement of clinical signs. Following diagnosis of IBD, corticosteroid administration was initiated in conjunction with antifungal prophylaxis. Cessation of vomiting and a return to normal appetite occurred within 3 days. Fifteen months after cessation of corticosteroid treatment, the eagle continued to do well. CLINICAL RELEVANCE To our knowledge, this was the first report of diagnosis and management of IBD in an avian species. For the eagle of the present report, results of several diagnostic tests increased clinical suspicion of IBD, but histologic examination of an intestinal biopsy specimen was required for definitive diagnosis. Although successful in this case, steroid administration in avian species must be carefully considered. Conclusive evidence of fenbendazole toxicosis was not obtained, although it was highly suspected in this bird.
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Abstract
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. Metagenomic studies have used shotgun sequencing of DNA as well as phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) to characterize functional changes in the bacterial metagenome in gastrointestinal disease. Furthermore, wide-scale and untargeted measurements of metabolic products derived by the host and the microbiota in intestinal samples allow a better understanding of the functional alterations that occur in gastrointestinal disease. For example, changes in bile acid metabolism and tryptophan catabolism recently have been reported in humans and dogs. Also, metabolites associated with the pentose phosphate pathway were significantly altered in chronic gastrointestinal inflammation and indicate the presence of oxidative stress in dogs with IBD. This review focuses on the advancements made in canine metagenomics and metabolomics and their implications in understanding gastrointestinal disease as well as the development of better treatment approaches.
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