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1.
Article in English | MEDLINE | ID: mdl-31627220

ABSTRACT

Mucous membrane pemphigoid was diagnosed in a 2.5-year-old male intact foxhound-beagle cross which was presented with an acute onset of non-pruritic, multifocal, slowly progressive erosive-ulcerative dermatitis predominantly affecting the nasal planum, eyelids and muzzle with multiple vesicles on the inner pinnae, oral mucosa and tongue. The diagnosis was based on clinical signs and histological examination of skin biopsies. The patient did not respond to immunosuppressive prednisolone therapy, but went into complete remission with oral doxycycline and niacinamide and stayed in remission on long-term exclusive niacinamide treatment.


Subject(s)
Dog Diseases/drug therapy , Pemphigoid, Benign Mucous Membrane/veterinary , Animals , Dog Diseases/diagnosis , Dog Diseases/pathology , Dogs , Doxycycline/therapeutic use , Immunosuppressive Agents/therapeutic use , Male , Mouth Mucosa/pathology , Pemphigoid, Benign Mucous Membrane/diagnosis , Pemphigoid, Benign Mucous Membrane/drug therapy , Pemphigoid, Benign Mucous Membrane/pathology , Prednisolone/therapeutic use
2.
Article in German | MEDLINE | ID: mdl-31627226

ABSTRACT

Mucous membrane pemphigoid was diagnosed in a 2.5-year-old male intact foxhound-beagle cross which was presented with an acute onset of non-pruritic, multifocal, slowly progressive erosive-ulcerative dermatitis predominantly affecting the nasal planum, eyelids and muzzle with multiple vesicles on the inner pinnae, oral mucosa and tongue. The diagnosis was based on clinical signs and histological examination of skin biopsies. The patient did not respond to immunosuppressive prednisolone therapy, but went into complete remission with oral doxycycline and niacinamide and stayed in remission on long-term exclusive niacinamide treatment.

3.
Tierarztl Prax Ausg K Kleintiere Heimtiere ; 45(5): 337-343, 2017 Oct 17.
Article in English | MEDLINE | ID: mdl-28905976

ABSTRACT

A cutaneous infection with Alternaria spp. was diagnosed in a 2-year-old male intact Irish setter dog, presenting with multifocal papules, plaques and ulcerations involving all four distal limbs, shoulder blades, scrotum, pinnae and nasal mucous membranes. The dog had been treated for inflammatory bowel disease and lymphangiectasia with immunosuppressive doses of cyclosporine and prednisolone for approximately 3 months. The diagnosis was based on clinical signs, the demonstration of fungal elements within skin biopsies, deep fungal culture and fungal PCR from a formalin-fixed tissue specimen. Complete clinical remission was achieved by tapering and cessation of the immunosuppressive medication, treatment with cold atmospheric-pressure plasma (CAPP) and topical enilconazole within 8 weeks.


Subject(s)
Alternariosis/veterinary , Dog Diseases/therapy , Immunocompromised Host , Immunosuppressive Agents/adverse effects , Plasma Gases/therapeutic use , Alternariosis/immunology , Alternariosis/therapy , Animals , Anti-Inflammatory Agents/adverse effects , Antifungal Agents/adverse effects , Cyclosporine/adverse effects , Dog Diseases/microbiology , Dogs , Fungicides, Industrial/therapeutic use , Imidazoles/therapeutic use , Inflammatory Bowel Diseases/drug therapy , Inflammatory Bowel Diseases/veterinary , Lymphangiectasis/drug therapy , Lymphangiectasis/veterinary , Male , Prednisolone/adverse effects
4.
Article in English, German | MEDLINE | ID: mdl-28094416

ABSTRACT

Leukotrichia can be caused by a variety of metabolic and inflammatory diseases. Canine alopecia areata is a rare multifactorial benign non-scarring alopecia. This case report describes a seasonally recurrent leukotrichia associated with alopecia areata in a German shepherd dog. Important differential diagnoses were ruled out and histopathology finally confirmed the diagnosis of alopecia areata. Topical tacrolimus and hydrocortisone aceponate were ineffective. The cause for the seasonal character in this case remained undetermined.


Subject(s)
Alopecia Areata/veterinary , Dog Diseases/diagnosis , Hypotrichosis/veterinary , Administration, Topical , Alopecia Areata/diagnosis , Alopecia Areata/drug therapy , Animals , Biopsy/veterinary , Diagnosis, Differential , Dog Diseases/drug therapy , Dogs , Hypotrichosis/diagnosis , Hypotrichosis/etiology , Immunohistochemistry/veterinary , Immunosuppressive Agents/administration & dosage , Male , Recurrence , Seasons , Skin/pathology , Tacrolimus/administration & dosage
5.
Vet Dermatol ; 19(4): 199-208, 2008 Aug.
Article in English | MEDLINE | ID: mdl-18547382

ABSTRACT

Although ketoconazole has been used extensively in dogs for the treatment of various fungal infections, information about adverse effects is mainly anecdotal. Common adverse effects in humans include dose-dependant anorexia, nausea and vomiting, allergic rashes and pruritus. Drug-induced hepatitis is very rare, but potentially fatal. The aim of this study was to evaluate the type and frequency of adverse effects associated with ketoconazole therapy in dogs treated for skin diseases and any possible influence of dosage, duration of therapy, signalment or concurrent medication. The medical records of 632 dogs treated with ketoconazole (2.6-33.4 mg/kg) were reviewed. Adverse effects occurred in 14.6% (92 dogs) and included vomiting (7.1%), anorexia (4.9%), lethargy (1.9%), diarrhea (1.1%), pruritus (0.6%), erythema (0.3%) and other adverse effects (2.5%). Of the dogs with other adverse effects, four of 16 (25%) were ataxic and three of these received concurrent ivermectin. Adverse effects were significantly more often recorded in dogs concurrently treated with ciclosporin (P = 0.034) or ivermectin (P = 0.007). Increased liver enzyme levels were reported rarely, and icterus was not seen in any of the dogs. However, monitoring liver enzymes during therapy is recommended, although this might not necessarily prevent severe idiosyncratic hepatotoxicity.


Subject(s)
Antifungal Agents/adverse effects , Dog Diseases/chemically induced , Ketoconazole/adverse effects , Animals , Dogs , Female , Male , Retrospective Studies
6.
Vet Dermatol ; 19(2): 88-94, 2008 Apr.
Article in English | MEDLINE | ID: mdl-18336425

ABSTRACT

This study reports the condition onychomadesis affecting multiple claws in Norwegian Gordon and English setters. Medical records of and claw biopsies from 18 Gordon and four English setters with onychomadesis of multiple claws were obtained from July 2005 to January 2007. Only dogs with symmetrical onychomadesis and no signs of concurrent disease were included. Histopathological features varied between dogs, but typically included interface dermatitis with subepidermal cleft formation, pigment incontinence, basal cell vacuolization and necrosis, spongiosis and lymphocytic exocytosis, a lymphocytic, plasmacytic subepidermal inflammation, and fibroplasia. In two dogs, histopathological signs of a superficial infection were present. The age of onset of disease varied between 2 and 7 years with a mean of 3.9 years, and was not correlated with vaccination time. Six of the affected dogs also had siblings with the disease. Due to the close relationship of the affected dogs, pedigree map analysis was not possible. Three dogs were euthanized because of the disease and two had regrowth of normal claws. Seventeen dogs had persistent onychodystrophy that typically was nonpainful during therapy which in most dogs consisted of fatty acid supplementation or prednisolone.


Subject(s)
Dog Diseases/genetics , Dog Diseases/pathology , Nails, Malformed/veterinary , Pedigree , Age of Onset , Animals , Dog Diseases/drug therapy , Dogs , Fatty Acids/therapeutic use , Female , Hoof and Claw/pathology , Male , Nails, Malformed/drug therapy , Nails, Malformed/genetics , Nails, Malformed/pathology , Prednisolone/therapeutic use , Treatment Outcome
7.
Am J Vet Res ; 63(6): 874-9, 2002 Jun.
Article in English | MEDLINE | ID: mdl-12061535

ABSTRACT

OBJECTIVE: To examine cross-reactivity of aeroallergens in Colorado and surrounding states by evaluating concurrent positive reactions of related and nonrelated allergens of intradermal tests in dogs. SAMPLE POPULATION: Intradermal test results of 268 atopic dogs. PROCEDURE: A retrospective evaluation of skin test results for 268 dogs was performed. Pairs of closely related and nonrelated allergens were evaluated. Group 1 consisted of closely related allergens with demonstrated antibody cross-reactivity in humans. In group 2, allergens of the same plant group (ie, trees, grasses, or weeds) that were not closely related were paired. In group 3, allergen pairs were of different plant groups. Plant allergens were paired with dust mite allergens, animal dander, or mold spores in group 4. In the last group, allergens not derived from plants were paired. Data were evaluated twice by use of a different definition of a positive reaction. Significance of the difference between group means of log odds ratios was estimated by use of a boot-strap percentile confidence interval. RESULTS: Significant differences in the number of concurrent positive reactions were not found between related versus nonrelated grass, weed, or tree allergens. Significant differences in the number of concurrent positive reactions were found between plant allergens of different groups (ie, grasses, weeds, and trees) and plant allergens of the same groups, related or nonrelated, as well as between plant-derived and nonplant-derived allergens. Many dogs reacting to a specific allergen did not react to a closely related allergen at the same time. CONCLUSION: These results provide evidence against clinically relevant cross-reactivity and suggest that allergen-specific immunotherapy should be formulated on the basis of single allergen test results.


Subject(s)
Allergens/immunology , Dermatitis, Atopic/veterinary , Dog Diseases/immunology , Animals , Colorado , Confidence Intervals , Cross Reactions , Dermatitis, Atopic/immunology , Dogs , Immunoglobulin E/immunology , Odds Ratio , Retrospective Studies , Skin Tests/veterinary
8.
Am J Vet Res ; 63(4): 491-4, 2002 Apr.
Article in English | MEDLINE | ID: mdl-11939308

ABSTRACT

OBJECTIVE: To evaluate the effect of long-term treatment with tetracycline and niacinamide on antibody production in dogs by measuring postvaccinal serum concentrations of antibodies against canine parvovirus and canine distemper virus. ANIMALS: 10 dogs receiving long-term treatment with tetracycline and niacinamide (treatment group) and 10 healthy dogs (control group). PROCEDURE: The treatment group included 9 dogs with discoid lupus erythematosus and 1 dog with pemphigus foliaceus on long-term treatment (> 12 months) with tetracycline and niacinamide. The control group included 10 healthy dogs with no clinical signs of disease and no administered medications for the past 3 months. Blood samples were obtained from all dogs by jugular venipuncture. Serum antibody titers against canine parvovirus and canine distemper virus antigens were measured, using hemaglutination inhibition and serum neutralization, respectively, and compared between groups. RESULTS: A significant difference in antibody titers between treatment- and control-group dogs was not found. All dogs had protective antibody titers against canine distemper virus, and 8 of 10 dogs from each group had protective titers against canine parvovirus infection. CONCLUSION AND CLINICAL RELEVANCE: These results provide evidence that long-term treatment with tetracycline and niacinamide does not interfere with routine vaccinations and thus does not seem to influence antibody production in dogs.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Antibodies, Viral/biosynthesis , Dog Diseases/drug therapy , Lupus Erythematosus, Discoid/drug therapy , Niacinamide/therapeutic use , Animals , Anti-Bacterial Agents/administration & dosage , Anti-Bacterial Agents/immunology , Antibodies, Viral/blood , Distemper Virus, Canine/immunology , Distemper Virus, Canine/isolation & purification , Dog Diseases/immunology , Dogs , Female , Lupus Erythematosus, Discoid/immunology , Male , Niacinamide/administration & dosage , Niacinamide/immunology , Parvoviridae Infections/immunology , Parvoviridae Infections/prevention & control , Parvoviridae Infections/veterinary , Parvovirus/immunology , Parvovirus/isolation & purification , Tetracyclines , Vaccination/veterinary
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