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Veterinary Dermatology

Anna Puigdemont, Nicla Furiani, Michela De Lucia, Isaac Carrasco, Laura Ordeix, Dolors Fondevila, Laura Ramió-Lluch, Pilar Brazis
BACKGROUND: Autosomal recessive congenital ichthyosis (ARCI) in golden retrievers is due to a PNPLA1 gene mutation, which plays a role in epidermal lipid organization and metabolism. Topical therapies are used to reduce scaling; however, there are few published efficacy studies. OBJECTIVES: To examine the efficacy of topical treatment based on gluconolactone, a polyhydroxy acid with known beneficial effects on stratum corneum structure. ANIMALS: Sixteen golden retriever dogs with clinical signs of ARCI and PCR-confirmed PNPLA1 gene mutation...
May 22, 2018: Veterinary Dermatology
Keiji Teramoto, Ryota Asahina, Hidetaka Nishida, Hiroaki Kamishina, Sadatoshi Maeda
BACKGROUND: Previous studies indicate that tight junctions are involved in the pathogenesis of canine atopic dermatitis (cAD). An in vitro skin model is needed to elucidate the specific role of tight junctions in cAD. A 3D epidermal equivalent model using canine progenitor epidermal keratinocytes (CPEK) has been established; the expression of tight junctions within this model is uncharacterized. HYPOTHESIS/OBJECTIVES: To investigate the expression of tight junctions in the 3D epidermal equivalent...
May 21, 2018: Veterinary Dermatology
Rikke Friis Larsen, Lene Boysen, Lisbeth Rem Jessen, Luca Guardabassi, Peter Damborg
BACKGROUND: Staphylococcus pseudintermedius is genotypically diverse within the canine population and multiple strains may colonize individual dogs at any given time. If multiple strains with distinct antimicrobial resistance profiles are present in superficial bacterial folliculitis (SBF), sampling a single skin lesion for culture and antimicrobial susceptibility testing (AST) might be inadequate to select effective therapy. HYPOTHESIS/OBJECTIVES: To investigate S...
May 21, 2018: Veterinary Dermatology
Hock Siew Han, Charles Chen, Carlo Schievano, Chiara Noli
BACKGROUND: Canine screw-worm myiasis due to Cochliomyia hominivorax or Chrysomya bezziana has traditionally been treated with extra-label use of ivermectin. The larvicidal activities of nitenpyram and spinosad/milbemycin also have been described, but there have been no reports to describe the efficacy of isoxazolines such as afoxolaner. OBJECTIVES: To evaluate and compare the efficacy of spinosad, spinosad/milbemycin, milbemycin, nitenpyram and afoxolaner for the treatment of canine screw-worm myiasis...
May 6, 2018: Veterinary Dermatology
Antonella Di Palma, Federico Leone, Francesco Albanese, Massimo Beccati
BACKGROUND: Dermanyssus gallinae is a major threat for the poultry industry; these mites also feed on the blood of many other birds, small mammals and potentially humans. HYPOTHESIS/OBJECTIVES: Three cats with dermatitis attributed to D. gallinae infestation. ANIMALS: Two 40-day-old kittens, living in a rural area, and one 7-year-old female indoor cat, were presented with a pruritic skin condition. METHODS: Mite specimens were collected from the cats and examined by light and scanning electron microscopy...
April 30, 2018: Veterinary Dermatology
Erin E Aufox, Elizabeth R May, Linda A Frank, Stephen A Kania
BACKGROUND: Cutaneous adverse food reaction (CAFR) is diagnosed by performing an elimination diet trial utilizing prescription or home-cooked diets followed by provocative challenge. OBJECTIVES: To report findings of PCR analysis of a prescription vegetarian diet (RCV) for undeclared proteins of animal origin, as well as to describe its utilization for diagnosis and management of dogs suspected of having CAFR. ANIMALS: Three client-owned dogs...
April 24, 2018: Veterinary Dermatology
Noémi Tarpataki, Julianna Thuróczy, Nina Fischer, Sandrine Jacquenet, Ana Rostaher, Christelle Richard, Lena Zwickl, Thierry Olivry, Claude Favrot
BACKGROUND: Allergen-specific IgE serology is used for the determination of sensitization status in dogs with atopic dermatitis; the influence of the female reproductive cycle on the results of such methods has not been studied in dogs. OBJECTIVES: To compare the total and allergen-specific IgE of healthy bitches during anestrous, estrous and pregnancy. ANIMALS: Eight privately owned, healthy bitches. METHODS: Total and allergen-specific IgE levels were determined in eight bitches at three different time-points of their reproductive cycle: anestrous, estrous and pregnancy...
April 23, 2018: Veterinary Dermatology
Vanessa M Schmidt, Gina Pinchbeck, Tim Nuttall, Steve Shaw, K Marie McIntyre, Neil McEwan, Susan Dawson, Nicola J Williams
BACKGROUND: Antimicrobial-resistant bacteria are increasingly isolated from veterinary patients. OBJECTIVES: To determine risk factors for antimicrobial resistance (AMR) among canine mucosal staphylococci following routine antimicrobial treatment with cefalexin (CFX), clavulanate-amoxicillin (AC), cefovecin (CVN), clindamycin (CD) or a fluoroquinolone (FQ). ANIMALS: Mucosal swab samples (n = 463) were collected from 127 dogs pre-treatment, immediately, and at one- and three-months post-treatment...
April 17, 2018: Veterinary Dermatology
Rareş Căpitan, Carlo Schievano, Chiara Noli
BACKGROUND: Direct examination of the hair is a simple diagnostic test for the diagnosis of dermatophytosis; training is needed to use this test. HYPOTHESIS/OBJECTIVES: To evaluate whether use of modified Wright-Giemsa blue stain and/or photographic images of infected and uninfected hairs improved the user's ability to identify infected or uninfected hairs. ANIMALS: Ten cats with, and 10 cats without, dermatophytosis due to Microsporum canis (n = 20)...
April 17, 2018: Veterinary Dermatology
Lynette K Cole, Päivi J Rajala-Schultz, Gwendolen Lorch
BACKGROUND: Hearing loss (HL) is classified as conductive when sound transmission is compromised in the ear canal or middle ear, or sensorineural when there is an abnormality of the receptor cells of the cochlea or auditory pathway. Hearing in dogs is evaluated using the brainstem auditory evoked response (BAER) test. HYPOTHESIS/OBJECTIVES: Our objective was to characterize BAER findings pre- and post-ear flushing in four dogs with acute HL following application of an ointment-based otic medication containing betamethasone, clotrimazole and gentamicin in a mineral oil-based system containing a plasticized hydrocarbon gel...
April 17, 2018: Veterinary Dermatology
Elisa Maina, Irina Matricoti, Chiara Noli
BACKGROUND: Adverse food reaction (AFR) is diagnosed with a two month elimination diet (ED), followed by challenge with the original food. HYPOTHESIS/OBJECTIVES: To evaluate reactivity of selected EDs and performance of a Western blot serological test for the diagnosis of AFR. ANIMALS: Twenty five food reactive (FR) and 13 non food reactive (NFR) privately owned dogs. METHODS: Sera were tested for antibodies against hydrolyzed poultry feather (RCA), hydrolyzed soy (PHA), hydrolyzed fish (FUH), limited antigen horse and potato (THP), fresh horse meat and the offending food for each FR dog as documented by provocative challenge...
April 6, 2018: Veterinary Dermatology
Ilaria Porcellato, Luca Luciani, Maria Luisa Marenzoni, Sara Francesca Santagostino, Monica Sforna, Luca Mechelli, Chiara Brachelente
BACKGROUND: Feline herpesvirus ulcerative dermatitis is an uncommon skin disease in cats, with a predominantly facial distribution characterized by massive infiltration of eosinophils and, occasionally, predominant neutrophils. OBJECTIVE: To describe the clinical and histopathological features of a putative atypical case of feline herpesvirus dermatitis. ANIMAL: A 10-month-old, intact male, European cat was presented with chronic monolateral ulcerative dermatitis with adherent crusts on the left pinna...
April 6, 2018: Veterinary Dermatology
Tatyana Vladimirovna Moskvina, Mikhail Yur'evich Shchelkanov, Mariya A Begun
No abstract text is available yet for this article.
March 26, 2018: Veterinary Dermatology
Diana Di Mattia, Dolores Fondevila, Francesca Abramo, Alessandra Fondati
BACKGROUND: Head and neck ulcers in cats can arise from allergic and nonallergic disorders, including feline leishmaniosis (FeL). It is important to rule out this aetiological agent in regions that are endemic for canine leishmaniosis, because the drugs used to treat immune-mediated disorders of cats can be contraindicated in the setting of infection. HYPOTHESIS/OBJECTIVES: The aim of this study was to evaluate the skin of cats with ulcerative dermatitis of the head or neck for evidence of Leishmania infection using combined immunohistochemistry (IHC) and Polymerase Chain Reaction (PCR)...
March 25, 2018: Veterinary Dermatology
Jae-Eun Hyun, Tae-Ho Chung, Cheol-Yong Hwang
BACKGROUND: Pseudomonas aeruginosa is a challenging pathogen cultured from cases of acute and chronic canine otitis and sometimes in cases of deep pyoderma. The spread of antimicrobial resistance, especially carbapenem resistance, is a serious therapeutic challenge worldwide. HYPOTHESIS/OBJECTIVES: To investigate the identification and characterization of resistant P. aeruginosa clinical canine isolates. MATERIALS: Clinical isolates (n = 80) were collected from dogs with pyoderma (n = 18) and otitis (n = 62) in Korea...
March 25, 2018: Veterinary Dermatology
Ana M P Oliveira, Joana S P Devesa, Peter B Hill
BACKGROUND: Staphylococcus pseudintermedius and Malassezia pachydermatis are important agents in canine pyoderma and otitis. HYPOTHESIS/OBJECTIVES: Determine the in vitro efficacy of a honey-based gel (HBO) against meticillin-susceptible S. pseudintermedius (MSSP), meticillin-resistant S. pseudintermedius (MRSP) and M. pachydermatis, by minimum bactericidal concentration (MBC), minimum fungicidal concentration (MFC) and time-kill assay (TKA). Efficacy of the product's honey component (HO) also was evaluated...
March 22, 2018: Veterinary Dermatology
Amanda Blubaugh, Daniel Rissi, Deborah Elder, Tara Denley, Sitka Eguiluz-Hernandez, Frane Banovic
BACKGROUND: Topical Janus kinase (JAK) inhibition is a promising therapeutic target for several inflammatory skin diseases of humans. OBJECTIVES: To evaluate the anti-inflammatory effect of tofacitinib, a JAK 1/3 inhibitor, on immediate and late-phase skin reactions in dogs. ANIMALS: Five healthy laboratory beagle dogs. METHODS: Topical tofacitinib (total daily dosage: 0.5 mg/cm2 ) or its gel vehicle were applied on either the left or right lateral thorax of each dog for eight days...
March 6, 2018: Veterinary Dermatology
Ryota Asahina, Hidetaka Nishida, Hiroaki Kamishina, Sadatoshi Maeda
BACKGROUND: In humans, interleukin (IL)-33 plays a critical role in the enhancement of allergic skin inflammation. However, it currently remains unclear whether IL-33 is involved in the pathogenesis of canine atopic dermatitis (cAD). OBJECTIVES: To examine the expression of IL-33 in chronic lesional skin of cAD. ANIMALS: Eight dogs with spontaneous cAD and five healthy dogs were used. METHODS: The transcription of il-33 in chronic lesional skin of cAD was quantified by quantitative reverse transcription PCR...
March 2, 2018: Veterinary Dermatology
Britt J Levy, Douglas J DeBoer
BACKGROUND: Cross-reactive carbohydrate determinants (CCD) are defined carbohydrate portions of glycoprotein cell surface molecules common to many plant and insect species. Mammalian species recognize CCD as foreign antigens and can mount humoral immune responses against them. Approximately 20-37% of grass and venom allergic people possess circulating IgE against CCD; these antibodies are generally considered clinically irrelevant. Anti-CCD IgE is, however, recognized as a cause of false positive, clinically incongruent serum allergen test results in people; this phenomenon has not been investigated in animals...
March 1, 2018: Veterinary Dermatology
Marion Mosca, Murielle Vabret, Pia Randleff-Rasmussen, Didier Pin
BACKGROUND: The horn fly Haematobia irritans is known to cause problems in cattle including weight loss and decreased milk production; cutaneous lesions have not been widely reported and descriptions of the clinical manifestations are quite variable. HYPOTHESIS/OBJECTIVES: This study describes the clinical and histopathological lesions of several Aubrac cows that presented with focal to confluent areas of alopecia, skin scaling and thickening, suspected to be induced by H...
March 1, 2018: Veterinary Dermatology
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