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Mattavelli C, Willems A, Gomez Soto E, Chong SK. Hypocobalaminaemia in dogs with acute gastrointestinal diseases. J Small Anim Pract 2024; 65:104-112. [PMID: 38183171 DOI: 10.1111/jsap.13699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024]
Abstract
OBJECTIVES The objectives of this study were to investigate the prevalence of hypocobalaminaemia in dogs with acute gastrointestinal diseases and to evaluate its relationship with disease severity and outcome. MATERIALS AND METHODS Medical records of dogs presented for acute gastrointestinal signs that a serum cobalamin concentration measured between September 2019 and 2021 were included in this study. Hypocobalaminaemia was defined as serum cobalamin concentration <200 pmol/L, and low-normal cobalamin was defined as serum cobalamin concentration of 200 to 295 pmol/L. Duration of clinical signs prior to presentation, Acute Patient Physiologic and Laboratory Evaluation (APPLE) fast score, length of hospitalisation and outcome were recorded. RESULTS Thirty-three dogs were included. Seventeen dogs were diagnosed with acute gastrointestinal disease of unknown aetiology, seven dogs with parvoviral enteritis, three dogs with acute haemorrhagic diarrhoea syndrome and six dogs with miscellaneous diseases. The prevalence of hypocobalaminaemia in this population was 30.3% and low-normal cobalamin concentration was detected in 18.2% of dogs. There was no statistically significant relationship between the detection of hypocobalaminaemia or low-normal cobalamin and the duration of clinical signs before presentation, length of hospitalisation or Acute Patient Physiologic and Laboratory Evaluation fast score on admission. Mortality rate was 3%. CLINICAL SIGNIFICANCE Hypocobalaminaemia and low-normal cobalamin are common findings in dogs with acute gastrointestinal diseases. The therapeutic significance and potential implications for prognosis of hypocobalaminaemia in these patients requires further investigation.
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Affiliation(s)
- C Mattavelli
- Department of Clinical Science and Services, The Royal Veterinary College, Hatfield, UK
| | - A Willems
- The Ralph Veterinary Referral Centre, Marlow, UK
| | - E Gomez Soto
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, UK
| | - S K Chong
- The Ralph Veterinary Referral Centre, Marlow, UK
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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] [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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The Nexus of Diet, Gut Microbiota and Inflammatory Bowel Diseases in Dogs. Metabolites 2022; 12:metabo12121176. [PMID: 36557214 PMCID: PMC9782517 DOI: 10.3390/metabo12121176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 11/26/2022] Open
Abstract
Canine inflammatory bowel diseases (IBD) are of increasing interest in veterinary medicine. They refer to complex and debilitating conditions of dogs' gastrointestinal tract. Although little evidence for causal inferences is currently available, it is believed that IBD pathophysiology entails intricate interactions between environmental factors, the intestinal immune system, and the microbial communities that colonize the gut. To better understand the mechanisms underlying these disorders, leveraging factors associated with the development of these diseases is imperative. Of these factors, emerging evidence supports the role of dietary patterns as key players influencing the composition and function of gut microbes, with subsequent effects on health and disease. In this review, we particularly focus on addressing IBD in dogs and discuss how specific nutrients may elicit or relieve gut inflammation. Gaining mechanistic insights into such interplay and the underpinning mechanisms is key to inferring dietary recommendations, and setting up new and promising therapeutics.
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Chang CH, Lidbury JA, Suchodolski JS, Steiner JM. Effect of oral or injectable supplementation with cobalamin in dogs with hypocobalaminemia caused by chronic enteropathy or exocrine pancreatic insufficiency. J Vet Intern Med 2022; 36:1607-1621. [PMID: 36054643 PMCID: PMC9511088 DOI: 10.1111/jvim.16528] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 08/11/2022] [Indexed: 11/28/2022] Open
Abstract
Background Recent studies have shown similar efficacy of oral supplementation of cobalamin compared to injectable supplementation in dogs, but few prospective, randomized studies have been published. Objectives To evaluate efficacy of oral or injectable supplementation with cobalamin in normalizing serum cobalamin and methylmalonic acid (MMA) concentrations in dogs with hypocobalaminemia caused by either chronic enteropathy (CE) or exocrine pancreatic insufficiency (EPI). Animals Forty‐six client owned dogs with hypocobalaminemia. Methods Prospective randomized clinical trial. Dogs were divided into 2 groups (CE or EPI), and randomized to receive oral or injectable supplementation of cobalamin. Each dog had 3 visits and serum cobalamin and MMA concentrations were measured at each visit. Results In dogs with CE, serum cobalamin concentrations increased with oral (P = .02; median 149 [range 149‐231] to 733 [166‐1467] ng/L, median difference 552 [95% CI: 181‐899] ng/L) or injectable (P < .01; 168 [149‐233] to 563 [234‐965] ng/L, 367 [187‐623] ng/L) supplementation. In dogs with EPI, serum cobalamin concentrations increased with oral (P = .01; 162 [149‐214] to 919 [643‐3863] ng/L, 705 [503‐3356] ng/L) or injectable (P = .01; 177 [149‐217] to 390 [243‐907] ng/L, 192 [89‐361] ng/L) supplementation. Serum MMA concentrations decreased with oral or injectable supplementation in dogs with CE, but only with oral supplementation in dogs with EPI. Conclusions and Clinical Importance Oral supplementation is an alternative for cobalamin supplementation in dogs with hypocobalaminemia caused by CE or EPI.
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Affiliation(s)
- Chee-Hoon Chang
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Jonathan A Lidbury
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Jan S Suchodolski
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Joerg M Steiner
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
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Moore R, Anturaniemi J, Velagapudi V, Nandania J, Barrouin-Melo SM, Hielm-Björkman A. Targeted Metabolomics With Ultraperformance Liquid Chromatography-Mass Spectrometry (UPLC-MS) Highlights Metabolic Differences in Healthy and Atopic Staffordshire Bull Terriers Fed Two Different Diets, A Pilot Study. Front Vet Sci 2020; 7:554296. [PMID: 33195525 PMCID: PMC7653775 DOI: 10.3389/fvets.2020.554296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/22/2020] [Indexed: 01/09/2023] Open
Abstract
Background: While anecdotal evidence has long claimed that a raw meat-based diet (RMBD) improves the metabolic health of canines, no rigorous scientific study has clarified this issue. Canine atopic dermatitis (CAD) has also been linked to metabolic health, but its relation to diet remains poorly understood. This study investigates whether dietary choice is linked to metabolic health in healthy and CAD-diagnosed canines via targeted serum and urine metabolomic analysis of polar, non-ionic metabolites, as well as whether the underlying CAD condition modulates the response to nutritional intake. Materials and Methods: Serum metabolites of client-owned Staffordshire bull terriers, divided into CAD-diagnosed (n = 14) and healthy (n = 6) cohorts, were studied. Urine metabolites of a subset of the CAD-diagnosed canines (n = 8) were also studied. The canines were split into two cohorts based on diet. The first cohort were fed a commercially available high-fat, moderate-protein, low-carbohydrate RMBD (n = 11, CAD diagnosed n = 8, healthy n = 3). Those in the second cohort were fed a commercially available moderate-fat, moderate-protein, high-carbohydrate kibble diet (KD) (n = 9: CAD diagnosed n = 6, healthy n = 3). The diet intervention period lasted approximately 4.5 months (median 135 days). Statistical analyses of the serum profiles across all dogs (n = 20) and the urine profiles of the CAD-diagnosed subset (n = 8) were performed. Results and Discussion: The KD cohort was found to have higher concentrations of methionine than the RMBD cohort, both in serum (all dogs, p < 0.0001) and in urine (CAD-only cohort, p < 0.0002), as well as cystathionine and 4-pyridoxic acid. Methionine plays important roles in homocysteine metabolism, and elevated levels have been implicated in various pathologies. The CAD (n = 14) cohort dogs showed starker metabolic changes in response to diet regarding these pathways compared to the healthy (n = 6) cohort. However, there was no significant change in CAD severity as a result of either diet. Likely due to the higher meat content of the RMBD, higher concentrations of several carnitines and creatine were found in the RMBD cohort. Citrulline was found in higher concentrations in the KD cohort. Our findings provide insight into the relationship between diet and the serum and urine metabolite profiles of canines. They also suggest that neither diet significantly affected CAD severity.
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Affiliation(s)
- Robin Moore
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Johanna Anturaniemi
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Vidya Velagapudi
- Metabolomics Unit, Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
| | - Jatin Nandania
- Metabolomics Unit, Institute for Molecular Medicine Finland (FIMM), HiLIFE, University of Helsinki, Helsinki, Finland
| | - Stella Maria Barrouin-Melo
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
- Department of Veterinary Anatomy, Pathology and Clinics, School of Veterinary Medicine and Zootechny, Federal University of Bahia, Salvador, Brazil
| | - Anna Hielm-Björkman
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
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Kather S, Grützner N, Kook PH, Dengler F, Heilmann RM. Review of cobalamin status and disorders of cobalamin metabolism in dogs. J Vet Intern Med 2019; 34:13-28. [PMID: 31758868 PMCID: PMC6979111 DOI: 10.1111/jvim.15638] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 09/25/2019] [Indexed: 12/04/2022] Open
Abstract
Disorders of cobalamin (vitamin B12) metabolism are increasingly recognized in small animal medicine and have a variety of causes ranging from chronic gastrointestinal disease to hereditary defects in cobalamin metabolism. Measurement of serum cobalamin concentration, often in combination with serum folate concentration, is routinely performed as a diagnostic test in clinical practice. While the detection of hypocobalaminemia has therapeutic implications, interpretation of cobalamin status in dogs can be challenging. The aim of this review is to define hypocobalaminemia and cobalamin deficiency, normocobalaminemia, and hypercobalaminemia in dogs, describe known cobalamin deficiency states, breed predispositions in dogs, discuss the different biomarkers of importance for evaluating cobalamin status in dogs, and discuss the management of dogs with hypocobalaminemia.
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Affiliation(s)
- Stefanie Kather
- Department for Small Animals, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | - Niels Grützner
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Peter H Kook
- Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Franziska Dengler
- Institute of Veterinary Physiology, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | - Romy M Heilmann
- Department for Small Animals, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany.,School of Veterinary Science, Massey University, Palmerston North, New Zealand
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Lucena R, Novales M, Blanco B, Hernández E, Ginel PJ. Effect of probiotic Enterococcus faecium SF68 on liver function in healthy dogs. J Vet Intern Med 2019; 33:2628-2634. [PMID: 31578761 PMCID: PMC6872625 DOI: 10.1111/jvim.15625] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 09/04/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Probiotics are widely used in dogs but can be associated with alterations in some serum biochemistry test results. OBJECTIVE To assess the effect of Enterococcus faecium SF68 administration for 14 days on serum alanine transferase (ALT) and alkaline phosphatase (ALP) activity and total cholesterol and triglyceride concentrations in healthy dogs. ANIMALS Thirty-six healthy privately owned neutered dogs were randomly allocated, stratified by sex, to control or probiotic groups. Dogs were clinically healthy, with normal physical examination findings, blood, urine, and fecal analyses and ultrasonographic examinations. METHOD In this blinded, controlled study E. faecium SF68 was administered to the probiotic group for 14 days. Blood samples were taken from all dogs at days 0, 14, and 28. Serum ALT and ALP activity and total cholesterol and triglyceride concentrations were determined on these 3 days. RESULTS The probiotic induced no significant changes in mean ALT and ALP activity. Mean cholesterol concentration did not change during probiotic administration but a significant decrease was seen on day 28 (P < .01). Mean triglyceride concentration increased progressively, becoming significant at day 28 (P < .05), with 1 dog developing hypertriglyceridemia. CONCLUSIONS AND CLINICAL IMPORTANCE E. faecium SF68 would not create confusion when monitoring dogs with hepatobiliary disease because ALT and ALP activity did not change significantly. A significant decrease in cholesterol and significant increase in triglyceride concentrations were seen at day 28 but were not clinically relevant, with 1 dog showing hypertriglyceridemia. A longer trial is warranted to assess if the probiotic effects could be clinically relevant and to assess its potential use in hypertriglyceridemic dogs.
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Affiliation(s)
- Rosario Lucena
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine of Córdoba, Campus of Rabanales, Córdoba, Spain
| | - Manuel Novales
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine of Córdoba, Campus of Rabanales, Córdoba, Spain
| | - Beatriz Blanco
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine of Córdoba, Campus of Rabanales, Córdoba, Spain
| | - Eduardo Hernández
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine of Córdoba, Campus of Rabanales, Córdoba, Spain
| | - Pedro José Ginel
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine of Córdoba, Campus of Rabanales, Córdoba, Spain
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Lucena R, Olmedilla AB, Blanco B, Novales M, Ginel PJ. Effect of Enterococcus faecium SF68 on serum cobalamin and folate concentrations in healthy dogs. J Small Anim Pract 2018; 59:438-443. [PMID: 29667183 DOI: 10.1111/jsap.12845] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 03/13/2018] [Accepted: 03/28/2018] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To study the effect of a 14-day administration of the probiotic Enterococcus faecium SF68 on serum concentrations of cobalamin and folate in healthy dogs. MATERIALS AND METHODS Thirty-six healthy dogs were randomly allocated between probiotic and control groups. Enterococcus faecium SF68 was administered to the probiotic group for 14 days whereas the control group did not receive any product. A blood sample was taken from all dogs when starting the administration (day 1), when the administration ended (day 14) and 14 days later (day 28). Serum cobalamin and folate concentrations and the canine inflammatory bowel disease activity index scores were determined at each time point. RESULTS There was a progressive reduction of mean serum cobalamin in the probiotic group during the 28-day study, with significantly lower concentration at day 28 compared to baseline and day 14 concentrations. Moderate hypocobalaminaemia was observed in eight dogs at day 28. Probiotic administration was associated with a non-significant increase in mean serum folate concentration at day 14, and a significant decrease at day 28 compared with day 1. The canine inflammatory bowel disease activity index score remained unaltered during the study. CLINICAL SIGNIFICANCE Short-term Enterococcus faecium SF68 administration caused a significant reduction of mean cobalamin concentration and moderate hypocobolaminaemia in eight of 18 dogs. Monitoring serum folate appears unnecessary because the probiotic caused a non-significant increase that returned to baseline values after administration was discontinued.
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Affiliation(s)
- R Lucena
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Córdoba, 14014, Córdoba, Spain
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McCallum KE, Watson PJ. Hereditary selective cobalamin malabsorption and concurrent pancreatitis in a young Border collie. VETERINARY RECORD CASE REPORTS 2018. [DOI: 10.1136/vetreccr-2017-000568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
| | - Penny J Watson
- Department of Veterinary MedicineCambridge Veterinary SchoolCambridgeUK
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Dandrieux JRS, Noble PJM, Halladay LJ, McLean L, German AJ. Canine breed predispositions for marked hypocobalaminaemia or decreased folate concentration assessed by a laboratory survey. J Small Anim Pract 2013; 54:143-8. [PMID: 23458644 DOI: 10.1111/jsap.12039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The aim of this study was to determine canine breed predispositions for decreased serum folate or markedly decreased cobalamin concentrations. METHODS Retrospective analysis of samples from dogs that had serum folate and cobalamin concentrations measured, from 1990 to 2002 at the Comparative Gastroenterology Laboratory of Liverpool, were enrolled. A total of 13,069 samples were analysed. Those with trypsin-like immunoreactivity < 5·0 lg/L were excluded, and only breeds with at least 30 individuals tested were further analyzed. Breed predisposition was determined by calculating odds ratios and 95% confidence intervals for hypocobalaminaemia or decreased folate concentration. Significance was tested with a two-sided Fisher's exact test, and the level of statistical significance was set at P<0·05. RESULTS A total of 9960 dogs fulfilled the inclusion criteria. Forty breeds contained at least 30 individuals. Predispositions for hypocobalaminaemia were identified in shar peis, Staffordshire bull terriers, German shepherd dogs and mixed breeds. Predispositions for decreased folate concentration were found in golden retrievers and boxers. CLINICAL SIGNIFICANCE Predisposition for marked hypocobalaminaemia and decreased folate concentration differed between breeds. The shar peis had a markedly increased odds ratio for hypocobalaminaemia, as previously reported in North America, but other at-risk breeds were also identified.
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Affiliation(s)
- J R S Dandrieux
- School of Veterinary Science, University of Liverpool, Neston, Wirral
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Ruaux CG. Cobalamin in companion animals: diagnostic marker, deficiency states and therapeutic implications. Vet J 2013; 196:145-52. [PMID: 23518469 DOI: 10.1016/j.tvjl.2013.01.025] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 01/08/2013] [Accepted: 01/17/2013] [Indexed: 11/16/2022]
Abstract
Measurement of the water-soluble vitamin cobalamin has long been of interest as a marker of gastrointestinal disease in companion animals due to the highly localized presence of cobalamin receptors in the ileum. An increasing body of evidence suggests that cobalamin deficiency is an important co-morbidity in many companion animal patients with gastrointestinal and pancreatic disease. Congenital disorders of cobalamin absorption and cellular metabolism are also increasingly recognized in companion animal breeds. The early recognition of these disorders and timely treatment with parenteral cobalamin can be life-saving. In this article, the normal mechanisms of cobalamin absorption, the use of cobalamin as a marker of intestinal disease and data on the prevalence of hypocobalaminemia in a variety of diseases are described. The prognostic impact of and rational therapy for hypocobalaminemia in domestic animals are discussed.
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Affiliation(s)
- C G Ruaux
- Department of Clinical Sciences, Oregon State University, College of Veterinary Medicine, Corvallis, OR 97331, USA.
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Kiselow MA, Rassnick KM, McDonough SP, Goldstein RE, Simpson KW, Weinkle TK, Erb HN. Outcome of cats with low-grade lymphocytic lymphoma: 41 cases (1995–2005). J Am Vet Med Assoc 2008; 232:405-10. [DOI: 10.2460/javma.232.3.405] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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German AJ, Day MJ, Ruaux CG, Steiner JM, Williams DA, Hall EJ. Comparison of direct and indirect tests for small intestinal bacterial overgrowth and antibiotic-responsive diarrhea in dogs. J Vet Intern Med 2003. [PMID: 12564725 DOI: 10.1111/j.1939-1676.2003.tb01321.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Controversy exists over the diagnosis of idiopathic small intestinal bacterial overgrowth (SIBO) in dogs and some clinicians use the term antibiotic-responsive diarrhea (ARD) in preference. However, whether such terms are interchangeable is not clear. To examine the relationship between duodenal bacterial numbers and a clinical response to antibiotics, SIBO and ARD were defined by nonoverlapping criteria. Quantitative duodenal juice bacteriology and indirect serum biochemical tests were used to assess small intestinal bacterial populations in 30 dogs with gastrointestinal disorders, including 9 with ARD. Serum total unconjugated bile acid (TUBA) concentrations were measured in all dogs, serum folate and cobalamin concentrations were measured in 29 of 30 dogs, and quantitative culture of duodenal juice was performed in 22 of 30 dogs. Serum TUBA concentrations also were measured in samples from 38 control dogs. Twenty of 22 affected (clinical) dogs in which quantitative bacteriology was performed were classified as having SIBO (>10(5) colony-forming units of total bacteria per milliliter of duodenal juice), but bacterial numbers did not differ significantly between dogs with ARD and dogs with other disorders. Increased folate (19/29), decreased cobalamin (16/ 29), or a combination (9/29) were common, but increased TUBA concentrations were documented in only 5 of 30 clinical dogs. Again, no significant differences were observed between dogs with ARD and those with other disorders, and a similar proportion (5/38) of controls had abnormally high TUBA concentrations. Finally, no significant differences were noted when duodenal bacteriology and TUBA concentrations were assessed before and during antibiotic therapy. These results question the utility of quantitative duodenal juice bacteriology and indirect biochemical marker tests for SIBO in the investigation of canine gastrointestinal disorders.
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Affiliation(s)
- A J German
- Department of Clinical Veterinary Science, University of Bristol, Langford House, Bristol, UK.
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Marks SL. Editorial: Small Intestinal Bacterial Overgrowth in Dogs- Less Common Than You Think? J Vet Intern Med 2003. [DOI: 10.1111/j.1939-1676.2003.tb01317.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Willard MD, Jergens AE, Duncan RB, Leib MS, McCracken MD, DeNovo RC, Helman RG, Slater MR, Harbison JL. Interobserver variation among histopathologic evaluations of intestinal tissues from dogs and cats. J Am Vet Med Assoc 2002; 220:1177-82. [PMID: 11990964 DOI: 10.2460/javma.2002.220.1177] [Citation(s) in RCA: 121] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether substantial interobserver variation exists among diagnostic pathologists for descriptions of intestinal mucosal cell populations and whether histopathologic descriptions accurately predict when a patient does not have clinically evident intestinal disease. DESIGN Comparative survey. Sample Population-14 histologic slides of duodenal, ileal, or colonic tissue from 10 dogs and 3 cats. PROCEDURE Each histologic slide was evaluated independently by 5 pathologists at 4 institutions. Pathologists, who had no knowledge of the tissues' origin, indicated whether slides were adequate for histologic evaluation and whether the tissue was normal or abnormal. They also identified the main infiltrating cell type in specimens that were considered abnormal, and whether infiltrates were mild, moderate, severe, or neoplastic. RESULTS Quality of all slides was considered adequate or superior by at least 4 of the 5 pathologists. For intensity of mucosal cellular infiltrates, there was uniformity of opinion for 1 slide, near-uniformity for 6 slides, and nonuniformity for 7 slides. Five dogs did not have clinical evidence of intestinal disease, yet the pathologists' descriptions indicated that their intestinal tissue specimens were abnormal. CONCLUSIONS AND CLINICAL RELEVANCE Substantial interobserver variation was detected. Standardization of pathologic descriptions of intestinal tissue is necessary for meaningful comparisons with published articles. Clinicians must be cautious about correlating clinical signs and histopathologic descriptions of intestinal biopsy specimens.
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Affiliation(s)
- Michael D Willard
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, Texas AM University, College Station 77843-44744, USA
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German A, Hall E, Day M. Immune Cell Populations within the Duodenal Mucosa of Dogs with Enteropathies. J Vet Intern Med 2001. [DOI: 10.1111/j.1939-1676.2001.tb02292.x] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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