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Khosravi M, Avizeh R, Zayerzadeh A, Gharibi D, Razijalali M. Effect of Bacillus subtilis and Bacillus coagulans spores on induced allergic contact dermatitis in dogs. Vet Med Sci 2024; 10:e1410. [PMID: 38501344 PMCID: PMC10949178 DOI: 10.1002/vms3.1410] [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: 07/06/2023] [Revised: 02/04/2024] [Accepted: 02/19/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Probiotic strains have the potential to modulate immune responses, reduce intestinal inflammation, normalize intestinal mucosal function and decrease allergic reactions. OBJECTIVE This study aimed to investigate the effect of oral probiotic supplements containing Bacillus subtilis and Bacillus coagulans spores on clinical symptoms, haematological factors and immune responses to allergic contact dermatitis in dogs induced by dinitrochlorobenzene (DNCB). METHODS DNCB was injected subcutaneously into the scapular region of 20 healthy adult dogs of both sexes, divided into four groups, to induce experimental allergic contact dermatitis. Dogs in Group 1 received food without probiotics or medication. Oral prednisolone was administered to Group 2 for 30 days at a dosage of 0.25 mg/kg every other day. The dogs in Group 3 were treated with a combination of oral prednisolone and probiotics. The dogs in Group 4 were fed daily with a mixture of 109 B. subtilis and B. coagulans bacteria for 30 days. The immune system responses and related gene expression were analysed in the treated animals. RESULTS The administration of probiotics for 30 days resulted in a reduction in clinical symptoms and duration of wound repair. The probiotics treatment also significantly increased the serum bactericidal effects against Staphylococcus aureus and Escherichia coli. It enhanced both the classic and alternative activity of the complement, as well as lysozyme activity. Additionally, the probiotics led to higher total immunoglobulin levels and significant reductions in anti-trypsin and C-reactive protein levels. Furthermore, the expression of IgE, induction of interferon-gamma and IL-4 genes were also reduced. CONCLUSIONS According to the results, B. subtilis and B. coagulans can be further investigated as a viable alternative to corticosteroids in treating allergic contact dermatitis in dogs.
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Affiliation(s)
- Mohammad Khosravi
- Department of PathobiologyFaculty of Veterinary MedicineShahid Chamran University of AhvazAhvazKhuzestanIran
| | - Reza Avizeh
- Department of Clinical SciencesFaculty of Veterinary MedicineShahid Chamran University of AhvazAhvazKhuzestanIran
| | - Akram Zayerzadeh
- DVSc of Small Animal Internal MedicineFaculty of Veterinary MedicineShahid Chamran University of AhvazAhvazKhuzestanIran
| | - Darioush Gharibi
- Department of PathobiologyFaculty of Veterinary MedicineShahid Chamran University of AhvazAhvazKhuzestanIran
| | - Mohammad Razijalali
- Department of Clinical SciencesFaculty of Veterinary MedicineShahid Chamran University of AhvazAhvazKhuzestanIran
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Bradley CW, Mauldin EA, Morris DO. A review of cutaneous hypersensitivity reactions in dogs: A diagnostician's guide to allergy. Vet Pathol 2023; 60:783-795. [PMID: 37515434 DOI: 10.1177/03009858231189298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Allergic dermatoses are common in people and domestic animals. Resultant lesions are routinely biopsied and submitted for histological examination to confirm a diagnosis or rule out diseases with overlapping or atypical clinical features. Diagnostic pathologists and clinicians are often faced with the difficult task of determining whether an allergic reaction pattern is present on both the microscopic and macroscopic levels and correlating histopathologic findings with clinical and historical data to achieve a precise clinical diagnosis. The bulk of the current veterinary literature on allergic dermatoses focuses on atopic dermatitis in dogs, distantly followed by cats, horses, and other animals. The objectives of this review are to demonstrate the key histopathologic and clinical diagnostic features of the various allergy-mediated reaction patterns, and to provide diagnosticians with a practical guide for clinicopathological correlations. Current concepts in the pathophysiology of immediate hypersensitivity reactions, with a focus on atopic dermatitis, are discussed. Points of potential histopathologic overlap between the "classic" allergic reaction pattern and less common inflammatory, predominately eosinophilic, conditions that may mimic this pattern will be discussed with the goal of highlighting the critical need for collaboration between pathologists and clinicians in furthering patient care.
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Yoo J, Kang YH, Baek SJ, Hwang CY. Application of cold atmospheric microwave plasma as an adjunct therapy for wound healing in dogs and cats. J Vet Sci 2023; 24:e56. [PMID: 37532299 PMCID: PMC10404707 DOI: 10.4142/jvs.23067] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/26/2023] [Accepted: 06/12/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND Cold atmospheric plasma is a novel innovative approach for wound care, and it is currently underrepresented in veterinary medicine. OBJECTIVES To investigate the efficacy and safety of using cold atmospheric microwave plasma (CAMP) as an adjunct therapy for wound healing in dogs and cats. METHODS Wound healing outcomes were retrospectively analyzed using clinical records of client-owned dogs and cats who were first managed through standard wound care alone (pre-CAMP period) and subsequently via CAMP therapy (CAMP period). The degree of wound healing was estimated based on wound size and a modified wound scoring system. RESULTS Of the 27 acute and chronic wounds included in the analysis, 81.48% showed complete healing after the administration of CAMP as an adjunct therapy to standard care. Most wounds achieved complete healing in < 5 weeks. Compared with the pre-CAMP period, the rate of wound healing significantly increased every week in the CAMP period in terms of in wound size (first week, p < 0.001; second week, p = 0.012; third week, p < 0.001) and wound score (first week, p < 0.001; second week, p < 0.001; third week, p = 0.001). No adverse events were noted except for mild discomfort and transient erythema. CONCLUSIONS CAMP is a well-tolerated therapeutic option with immense potential to support the treatment of wounds of diverse etiology in small animal practice. Further research is warranted to establish specific criteria for CAMP treatment according to wound characteristics.
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Affiliation(s)
- Jisu Yoo
- Laboratory of Veterinary Dermatology and the Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Yeong-Hun Kang
- Laboratory of Veterinary Dermatology and the Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Seung Joon Baek
- Laboratory of Signal Transduction, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Cheol-Yong Hwang
- Laboratory of Veterinary Dermatology and the Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
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Mäki-Opas I, Hämäläinen M, Moilanen LJ, Sood H, Leppänen T, Kummola L, Junttila IS, Lehtimäki L, Moilanen E. TRPA1 Mediates Contact Hypersensitivity Induced by 2,4-Dinitrochlorobenzene. J Invest Dermatol 2023; 143:1104-1108.e4. [PMID: 36634816 DOI: 10.1016/j.jid.2022.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/28/2022] [Accepted: 12/12/2022] [Indexed: 01/11/2023]
Affiliation(s)
- Ilari Mäki-Opas
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.
| | - Mari Hämäläinen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Lauri J Moilanen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Heini Sood
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Tiina Leppänen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Laura Kummola
- Biodiversity Interventions for Well-being, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Ilkka S Junttila
- Cytokine Biology Research Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; Fimlab Laboratories, Tampere, Finland; Northern Finland Laboratory Centre (NordLab), Oulu, Finland; Research Unit of Biomedicine, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Lauri Lehtimäki
- Allergy Centre, Tampere University Hospital, Tampere, Finland; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Eeva Moilanen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
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De Bellis F, Di Mattia D. Approach to emergency dermatology cases in dogs and cats. IN PRACTICE 2022. [DOI: 10.1002/inpr.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Marcom N, Mendonça C, Souza M, Costa N, Afonso J, Zache E, Almeida A, Santos D, Santos R, Arenales A. An outbreak of systemic intoxication with irritant contact dermatitis due cypermethrin in dairy cows - case report. ARQ BRAS MED VET ZOO 2022. [DOI: 10.1590/1678-4162-12677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
ABSTRACT Pyrethroids are ectoparasiticides safe for mammals and widely used in farm animals. An outbreak of systemic intoxication with irritant contact dermatitis resulting from the use of cypermethrin pour on in dairy cows is reported in the state of Pernambuco. Eight adult animals were affected, three died on the property and five were referred to the Clínica de Bovinos, Universidade Federal Rural de Pernambuco, Campus Garanhuns. These received 100 mL of pour on Cypermethrin (Ectonil ®, Cipermetrina, Labgard, Brasil). Apathy, hyperexcitability, muscle tremors, sialorrhea, bradycardia and crusted lesions were observed on the dorsum of the neck, scapula, ears and ulcerations in the oral and vaginal mucosa. There was hyperfibrinogenemia and leukocytosis due to neutrophilia with a regenerative left shift. Histopathology showed areas of erosion and ulceration of the epidermis and perivascular lymphohistiocytic and neutrophilic infiltrate in the superficial dermis. Supportive treatment was done with improvement of systemic signs and skin lesions, however, in one animal (with 19 days hospitalized), there was no complete regression of neurological alterations of bradycardia and muscle tremors, even so, it was possible to return to productive activity. High doses of pour on cypermethrin may cause systemic intoxication in cattle and result in bradycardia, hyperexcitability, muscle tremors and sialorrhea with irritant contact dermatitis, and death in severe cases.
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Affiliation(s)
- N.N. Marcom
- Universidade Federal Rural de Pernambuco, Brazil
| | | | - M.I. Souza
- Universidade Federal Rural de Pernambuco, Brazil
| | - N.A. Costa
- Universidade Federal Rural de Pernambuco, Brazil
| | | | - E. Zache
- Universidade Federal Rural de Pernambuco, Brazil
| | | | - D.O. Santos
- Universidade Federal de Minas Gerais, Brazil
| | - R.L. Santos
- Universidade Federal de Minas Gerais, Brazil
| | - A. Arenales
- Universidade Federal Rural de Pernambuco, Brazil
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Hertiš Petek T, Petek M, Petek T, Marčun Varda N. Emerging Links between Microbiome Composition and Skin Immunology in Diaper Dermatitis: A Narrative Review. CHILDREN (BASEL, SWITZERLAND) 2022; 9:112. [PMID: 35053737 PMCID: PMC8775025 DOI: 10.3390/children9010112] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/09/2022] [Accepted: 01/12/2022] [Indexed: 11/16/2022]
Abstract
Diaper dermatitis is a common type of irritant contact dermatitis occurring in infants and toddlers. Its occurrence is triggered by an unfavorable environment under the diaper, damage to skin integrity by fecal enzyme degradation, overhydration and disruption of the lipid bilayer structure facilitating the entry of irritants and microorganisms. In diaper dermatitis development, the central proinflammatory cytokines are IL-1α, IL-8 and TNF-α. The initial release of IL-1α and TNF-α starts a further cascade of pro-inflammatory chemo- and cytokines, resulting in inflammation and erythema of the skin. A recently recognized factor in diaper dermatitis is the composition of the skin microbiome; common pathogenic strains Candida albicans and Staphylococcus aureus are associated with skin irritation. The resulting impaired microbiome composition produces a local inflammatory response and may thus worsen the initial dermatitis clinical presentation and subsequent healing. Introduction of probiotics is an attractive treatment for microbiome modulation, which has shown success in other skin conditions in adults and children. Probiotics are thought to work as a protective shield against irritants, maintain low skin pH, secrete beneficial metabolites, and block pathogen invasion. There is preliminary evidence that certain probiotics given orally or topically could be used as a gentle intervention in diaper dermatitis.
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Affiliation(s)
- Tjaša Hertiš Petek
- Department of Pediatrics, University Medical Center Maribor, 2000 Maribor, Slovenia; (T.P.); (N.M.V.)
- Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia;
| | - Maya Petek
- Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia;
| | - Tadej Petek
- Department of Pediatrics, University Medical Center Maribor, 2000 Maribor, Slovenia; (T.P.); (N.M.V.)
- Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia;
| | - Nataša Marčun Varda
- Department of Pediatrics, University Medical Center Maribor, 2000 Maribor, Slovenia; (T.P.); (N.M.V.)
- Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia;
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Traumatic Blepharitis Including Cutanous Changes with a Clinical Appearance of Immune-Mediated Disease. ACTA VET-BEOGRAD 2021. [DOI: 10.2478/acve-2021-0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
A four-year-old intact male Labrador retriever was presented with acute onset of ulcerative lesions around both eyes, on the mucocutaneous junctions around the muzzle and nares, and on the lateral aspects of paw pads. All lesions were symmetrical and well demarcated. The rest of ocular and systemic examination was unremarkable. The onset of lesions was acute and coincided with an episode of intense hunting in switchgrass. Similar lesions were present in another dog used in the same hunting trip. The clinical presentation was suggestive of a possible immune-mediated skin disease. However, the patient responded to systemic antibiotic treatment with full recovery without recurrence upon cessation of therapy. Traumatic origin should be included into differential diagnosis of mucocutaneous ulcerative lesions presenting as a possible immune-mediated skin disease.
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Pantelyushin S, Ranninger E, Bettschart-Wolfensberger R, Vom Berg J. OMIP-065: Dog Immunophenotyping and T-Cell Activity Evaluation with a 14-Color Panel. Cytometry A 2020; 97:1024-1027. [PMID: 32583607 DOI: 10.1002/cyto.a.24168] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 05/19/2020] [Accepted: 05/30/2020] [Indexed: 11/11/2022]
Abstract
Companion dogs are increasingly recognized as large-animal models of diseases such as cancer, infectious-, inflammatory-, or autoimmune diseases. At the same time, compared to human clinics, veterinarians have only a fraction of the treatment options available. To study the immunological aspects of canine diseases and ultimately develop or adapt human treatments for the dog, the methodology also needs to be in place. Such tools include robust and reliable flow cytometric panels. The purpose of the panel described here is to assess the immune cell composition and their functionality in the peripheral blood mononuclear cells (PBMCs) of dogs. Moreover, its "plug and play" composition allows for an in-depth analysis of T-cell responses in ex vivo assays (Table 1). Initially, this panel has been designed for the analysis of cryopreserved PBMCs to allow batched analysis and to reduce interexperimental variation. Withers and colleagues published a comparable and-to our knowledge-currently the most extensive canine panel to date (1). While their study focused on the aging and activation status of T cells in dogs, our panel is designed to look at a broader range of cells with a higher number of markers. This allows a more in-depth analysis of functional extracellular and intracellular markers. In addition, all antibodies in our proposed panel are directly labeled. In combination with suitable lymphocyte isolation protocols, this panel could potentially also be adapted to analyze tissue biopsies from various different organs. © 2020 International Society for Advancement of Cytometry.
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Affiliation(s)
| | - Elisabeth Ranninger
- Anaesthesiology Section, Vetsuisse Faculty, University of Zürich, Zurich, Switzerland
| | | | - Johannes Vom Berg
- Institute of Laboratory Animal Science, University of Zurich, Schlieren, Switzerland
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Implication of T Helper Cytokines in Contact Dermatitis and Atopic Dermatitis. CURRENT TREATMENT OPTIONS IN ALLERGY 2020. [DOI: 10.1007/s40521-020-00263-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Bäsler K, Brandner JM. Tight junctions in skin inflammation. Pflugers Arch 2016; 469:3-14. [DOI: 10.1007/s00424-016-1903-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/01/2016] [Accepted: 11/07/2016] [Indexed: 12/27/2022]
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