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van Amersfort K, van der Lee A, Hagen-Plantinga E. Evidence-base for the beneficial effect of nutraceuticals in canine dermatological immune-mediated inflammatory diseases - A literature review. Vet Dermatol 2023. [PMID: 36938651 DOI: 10.1111/vde.13152] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 11/01/2022] [Accepted: 11/26/2022] [Indexed: 03/21/2023]
Abstract
BACKGROUND Immune-mediated inflammatory diseases (IMIDs) are associated with an abnormal immune response, resulting in a disturbed homeostasis and chronic inflammation. Most canine dermatological IMIDs (cDIMIDs), such as allergies, autoimmune and immune-mediated diseases, require long-term treatment with immunosuppressive drugs with potential adverse effects. In general, nutraceuticals are thought to be safe. As a result, there is a tendency for the more frequent use of nutraceuticals in veterinary medicine. OBJECTIVES The aim of this review was to present evidence-based proof for the use of various nutraceuticals in the treatment of cDIMIDs and, where possible, to provide conclusions to guide their use in veterinary dermatological practice. METHODS A comprehensive literature search on common cDIMIDs and nutraceuticals was performed. Only peer-reviewed articles published in English and related to the study topic were included. A total of 64 eligible publications were classified in five categories based on study design and substantively assessed on additional criteria such as standardisation of diets and number of included animals. For final appraisal, classification of major, minor or no evidence was used whereby efficacy was based on clinical outcome measurements. CONCLUSIONS Minor evidence for the beneficial use of several nutraceuticals, including essential fatty acids, niacinamide and probiotics, was found for treatment of specific cDIMIDs. These nutraceuticals may improve clinical signs or reduce the required dose of concurrent medication (e.g. drug-sparing effect) in some dogs. Some nutraceuticals also may be used for long-term maintenance therapy. Despite some promising findings, major evidence for the use of nutraceuticals in cDIMIDs is lacking, warranting further research.
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Skin Barrier Reinforcement Effect Assessment of a Spot-on Based on Natural Ingredients in a Dog Model of Tape Stripping. Vet Sci 2022; 9:vetsci9080390. [PMID: 36006305 PMCID: PMC9414208 DOI: 10.3390/vetsci9080390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Canine atopic dermatitis is a disease of dogs in which the skin becomes permeable. Part of treating canine atopic dermatitis involves restoring the skin barrier function; however, few effective therapeutic options exist. The goal of this study was to evaluate the effect of a spot-on containing fatty acids, ceramides and essential oils on two parameters to evaluate the skin barrier function of dogs. We found that this spot-on had a protective effect on the skin barrier function for both parameters. This study suggests that the investigated product may be useful as an adjunctive treatment for canine atopic dermatitis. Abstract Skin barrier restoration is an important part of atopic dermatitis therapy. We investigated the effect of a spot-on containing plant-based essential fatty acids and essential oils on skin barrier parameters in a dog model of acute skin barrier disruption, using five healthy beagle dogs maintained in a laboratory setting. Four test sites on the dorsum and a control site on the abdomen were defined on each dog. Transepidermal water loss (TEWL) and skin surface hydration (SSH) were measured before and after tape stripping on the first day and then for three consecutive days, over four consecutive weeks. The spot-on was applied at the end of each of the first three weeks. The increase in TEWL after tape stripping was reduced after the spot-on application and reached control values in Weeks 3 and 4. SSH after tape stripping was reduced in Week 4 compared with the baseline. Thus, the ATOP 7® spot-on significantly reduced acute skin barrier impairment in a dog model. The use of this product should be further evaluated as a potential treatment for skin barrier defects such as canine atopic dermatitis.
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Tanprasertsuk J, Tate DE, Shmalberg J. Roles of plant-based ingredients and phytonutrients in canine nutrition and health. J Anim Physiol Anim Nutr (Berl) 2021; 106:586-613. [PMID: 34495560 PMCID: PMC9291198 DOI: 10.1111/jpn.13626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/13/2021] [Accepted: 08/11/2021] [Indexed: 12/05/2022]
Abstract
Dogs possess the ability to obtain essential nutrients, established by the Association of American Feed Control Officials (AAFCO), from both animal‐ and plant‐based ingredients. There has been a recent increase in the popularity of diets that limit or completely exclude certain plant‐based ingredients. Examples of these diets include ‘ancestral’ or ‘evolutionary’ diets, raw meat‐based diets and grain‐free diets. As compared to animal sources, plant‐derived ingredients (including vegetables, fruits, grains, legumes, nuts and seeds) provide many non‐essential phytonutrients with some data suggesting they confer health benefits. This review aims to assess the strength of current evidence on the relationship between the consumption of plant‐based foods and phytonutrients (such as plant‐derived carotenoids, polyphenols and phytosterols) and biomarkers of health and diseases (such as body weight/condition, gastrointestinal health, immune health, cardiovascular health, visual function and cognitive function) from clinical trials and epidemiological studies. This review highlights the potential nutritional and health benefits of including plant‐based ingredients as a part of balanced canine diets. We also highlight current research gaps in existing studies and provide future research directions to inform the impact of incorporating plant‐based ingredients in commercial or home‐prepared diets.
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Affiliation(s)
| | | | - Justin Shmalberg
- NomNomNow Inc, Nashville, TN, USA.,Department of Comparative, Diagnostic and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
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Boehm TMSA, Klinger CJ, Udraite-Vovk L, Navarro C, Mueller RS. Clinical effects of 2 commercially available diets on canine atopic dermatitis. TIERARZTLICHE PRAXIS. AUSGABE K, KLEINTIERE/HEIMTIERE 2021; 49:256-261. [PMID: 34425605 DOI: 10.1055/a-1543-4743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVE Canine atopic dermatitis (CAD) is a common skin disease in dogs. Prior studies were able to determine beneficial effects of essential fatty acids (EFA) on the clinical signs of CAD. The aim of this study was set to evaluate the effects of a newly designed, EFA-enriched diet on the clinical signs of CAD compared to another EFA-enriched diet. MATERIALS AND METHODS In this prospective, randomized, double-blinded study, 31 privately owned dogs with atopic dermatitis received either the control diet (diet A, Hill's Prescription Diet™ d/d™ Salmon & Rice, n = 17) or the test diet (diet B, Veterinary HPM™ Dermatology Support D1, Virbac, n = 14) for 12 weeks. At the beginning of the study as well as after 4, 8 and 12 weeks, skin lesions and pruritus were evaluated via validated scores and the administered medication was documented. At the same time, the dogs' coat quality was evaluated via a distinct scoring system. In both groups, a total of 7 dogs each completed the entire study. RESULTS After 12 weeks, there was a mild improvement in lesion scores, pruritus and coat quality with both diets. CLINICAL RELEVANCE In this study, both diets improved the patients' skin lesions pruritus and coat quality.
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Affiliation(s)
| | | | | | | | - Ralf S Mueller
- Centre for Clinical Veterinary Medicine, Ludwig Maximilian University
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Dillon GP, Cardinall C, Keegan JD, Yiannikouris A, Brandl W, Moran CA. The Analysis of Docosahexaenoic Acid (DHA) in Dried Dog Food Enriched with an Aurantiochytrium limacinum Biomass: Matrix Extension Validation and Verification of AOAC Method 996.06. J AOAC Int 2021; 104:68-77. [PMID: 33150938 PMCID: PMC8372133 DOI: 10.1093/jaoacint/qsaa097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Docosahexaenoic acid (DHA) plays an important role in brain and retinal development in dogs. However, supranutritional dietary supplementation can result in health issues, including gastrointestinal bleeding, making the accurate analysis of DHA in dog food important for nutritional and welfare regulatory compliance. OBJECTIVE The aim of this study was to conduct a validation and verification of the AOAC 996.06 method, and hence establish its fitness for purpose, for the analysis of DHA in dried dog food supplemented with a heterotrophically grown unextracted DHA-rich Aurantiochytrium limacinum biomass. METHODS The AOAC 996.06 method, which involves the use of gas chromatography coupled to flame ionization detection (GC-FID), was used to conduct a validation of the analysis of DHA in dried dog food and the results were verified in a second laboratory. RESULTS The method was found to be linear over the ranges analyzed and results were found to be within the acceptance criteria for precision and accuracy, verifying the applicability for this matrix. The selectivity and sensitivity of the method were also determined. CONCLUSIONS The AOAC 996.06 method is fit for purpose for the analysis of DHA in dry dog food kibble. HIGHLIGHTS The method can be applied to various dog food samples, supplemented with an unextracted Aurantiochytrium limacinum biomass, using alternative manufacturing methods, i.e. pelleted and extruded with no significant matrix effects being observed.
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Affiliation(s)
- Gerald Patrick Dillon
- Regulatory Affairs Department, Alltech Ireland, Summerhill Rd., Dunboyne, County Meath, Ireland
| | | | - Jason D Keegan
- Regulatory Affairs Department, Alltech Ireland, Summerhill Rd., Dunboyne, County Meath, Ireland
| | | | - Walter Brandl
- Research Department, Alltech Inc., Nicholasville, KY, USA
| | - Colm Anthony Moran
- Regulatory Affairs Department, Alltech SARL, ZA La Papillonière, Rue Charles Amand, 14500 Vire, France
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Hibberson CE, Vogelnest LJ. Storage mite contamination of commercial dry dog food in south-eastern Australia. Aust Vet J 2014; 92:219-24. [DOI: 10.1111/avj.12185] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2013] [Indexed: 11/30/2022]
Affiliation(s)
- CE Hibberson
- University Veterinary Teaching Hospital Camden; University of Sydney; 410 Werombi Rd Camden New South Wales 2570 Australia
| | - LJ Vogelnest
- University Veterinary Teaching Hospital Camden; University of Sydney; 410 Werombi Rd Camden New South Wales 2570 Australia
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Plant JD, Gortel K, Kovalik M, Polissar NL, Neradilek MB. Development and validation of the Canine Atopic Dermatitis Lesion Index, a scale for the rapid scoring of lesion severity in canine atopic dermatitis. Vet Dermatol 2013; 23:515-e103. [PMID: 23140318 DOI: 10.1111/j.1365-3164.2012.01113.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND The third iteration of the Canine Atopic Dermatitis Extent and Severity Index (CADESI-03) is the only tool rigorously validated for canine atopic dermatitis (CAD) lesion scoring. The CADESI-03 requires 248 evaluations, limiting its widespread use. HYPOTHESIS/OBJECTIVES The goal of the study was to develop and validate a practical method of grading CAD lesions that requires scoring only the frequently affected body regions. ANIMALS Fifty-seven privately owned atopic dogs were used in the study. METHODS The Canine Atopic Dermatitis Lesion Index (CADLI) was evaluated in an open, multicentre reliability study. Validity was assessed with expert opinion (content validity) and comparison of CADLI with existing disease severity measures (construct and criterion validity). Reliability was evaluated by analysing repeated observations of each dog. Convenience was assessed in terms of the time required to complete the scale. RESULTS The CADLI scores correlated with overall assessment scores (r = 0.60, P < 0.001, linear mixed model) and pruritus severity scores (r = 0.53, P < 0.001, linear mixed model), establishing construct validity. The CADLI was strongly correlated with CADESI-03 (r = 0.84, P < 0.001, linear mixed model), establishing criterion validity. The CADLI values obtained by two observers correlated very strongly (r = 0.91, P < 0.001), as did the repeat values for the same observer (r = 0.98, P < 0.001). The mean time to complete the CADLI was less than that required for CADESI-03 (1.9 and 12.6 min, respectively), a highly significant difference (P < 0.001). CONCLUSION AND CLINICAL IMPORTANCE The CADLI was found to be an effective measure of CAD lesion severity, strongly correlating with CADESI-03. The convenience of CADLI makes it suitable for use in both clinical research and practice.
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Olivry T, Bizikova P. A systematic review of randomized controlled trials for prevention or treatment of atopic dermatitis in dogs: 2008-2011 update. Vet Dermatol 2013; 24:97-117.e25-6. [DOI: 10.1111/j.1365-3164.2012.01088.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Tretter S, Mueller RS. The Influence of Topical Unsaturated Fatty Acids and Essential Oils on Normal and Atopic Dogs. J Am Anim Hosp Assoc 2011; 47:236-40. [DOI: 10.5326/jaaha-ms-5607] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Seven dogs with atopic dermatitis and six normal dogs were treated with a spot-on product containing essential oils and unsaturated fatty acids q 7 days for 8 wk. Seven additional atopic dogs received a daily spray containing similar ingredients to the spot-on. In all dogs, transepidermal water loss (TEWL) was measured before and after treatment using a closed chamber device. In atopic dogs, a validated lesion score (canine atopic dermatitis extent and severity index, CADESI) was determined and pruritus was assessed with a visual analog scale before and after treatment. The mean CADESI scores in atopic dogs decreased with the spot-on (P=0.0043) and with the spray (P=0.0366). Similarly, the pruritus scores decreased with the spot-on (P=0.266) and with the spray (P=0.0177). There was a significant difference between the TEWL values of healthy and atopic dogs on the abdomen (P=0.0181) and back (P=0.0123). TEWL decreased significantly on the back after treatment with the spray (P=0.016), but not on the abdomen (P=0.078). Adverse effects were not observed. The results of this pilot study indicate that topical fatty acids and essential oils are a useful treatment option for canine atopic dermatitis.
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Affiliation(s)
- Sandra Tretter
- Small Animal Medicine Clinic, Center for Clinical Veterinary Medicine, Ludwig Maximilian University Munich, Munich, Germany
| | - Ralf S. Mueller
- Small Animal Medicine Clinic, Center for Clinical Veterinary Medicine, Ludwig Maximilian University Munich, Munich, Germany
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Olivry T, DeBoer DJ, Favrot C, Jackson HA, Mueller RS, Nuttall T, Prélaud P. Treatment of canine atopic dermatitis: 2010 clinical practice guidelines from the International Task Force on Canine Atopic Dermatitis. Vet Dermatol 2010; 21:233-48. [DOI: 10.1111/j.1365-3164.2010.00889.x] [Citation(s) in RCA: 170] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Stehle ME, Hanczaruk M, Schwarz SCN, Göbel TW, Mueller RS. Effects of polyunsaturated fatty acids on isolated canine peripheral blood mononuclear cells and cytokine expression (IL-4, IFN-γ, TGF-β) in healthy and atopic dogs. Vet Dermatol 2010; 21:112-7. [DOI: 10.1111/j.1365-3164.2009.00860.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Schmidt V, McEwan N, Volk A, Helps J, Morrell K, Nuttall T. The glucocorticoid sparing efficacy of PhytopicaTMin the management of canine atopic dermatitis. Vet Dermatol 2010; 21:96-105. [DOI: 10.1111/j.1365-3164.2009.00858.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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