Publications by authors named "Rod A W Rosychuk"

Background: Nosocomial meticillin-resistant (MR) staphylococcal infections are of global concern. Veterinary dermatology exam room surfaces may be a reservoir given the commonness of staphylococcal pyoderma.

Hypothesis/objectives: First, efficacy of exam room surface decontamination using a quaternary ammonium compound was assessed after use of two different cleaning instruction protocols.

View Article and Find Full Text PDF

Background: Effective environmental disinfection is necessary to prevent nosocomial infections from meticillin-resistant Staphylococcus pseudintermedius (MRSP). However, there are currently no commercial disinfectant sprays or fogging systems with label claims against MRSP.

Hypothesis/objectives: To evaluate the efficacy of a quaternary ammonium product (QAC), an accelerated hydrogen peroxide product (AHP), a hydrogen peroxide and silver product (HAL), and a hydrogen peroxide and silver fogging system (FOG) against MRSP.

View Article and Find Full Text PDF

Background: Juvenile onset generalized demodicosis (JOGD) is thought to occur due to immunological abnormalities and is over-represented in pit bull terrier-type dogs.

Animals: Twelve pit bull terrier-type dogs with JOGD and 12 age-matched healthy pit bull terrier-type dogs.

Objective: To investigate immunological differences between age-matched healthy and JOGD pit bull terrier-type dogs by flow cytometry, multiplex, molecular and serological assays.

View Article and Find Full Text PDF

Background: Lokivetmab neutralizes IL-31, a cytokine that plays an important role in the pathogenesis of atopic dermatitis (AD) in dogs.

Objective: To review experience of one year of treatment with lokivetmab for the control of pruritus in dogs with allergic dermatitis.

Animals: Eighty dogs diagnosed with AD, ten with concurrent adverse food reaction and AD and 45 with allergic dermatitis of undetermined cause.

View Article and Find Full Text PDF

Background: Oclacitinib is a selective Janus kinase inhibitor for the treatment of canine allergic pruritus and atopic dermatitis in dogs. Glucocorticoids and ciclosporin increase urinary tract infection (UTI) frequency in dogs with inflammatory skin disease.

Objective: Prospective study to evaluate the frequency of UTI and subclinical bacteriuria in dogs with allergic dermatitis receiving oclacitinib.

View Article and Find Full Text PDF
Article Synopsis
  • Two captive eastern black rhinoceroses, one female and one male, were diagnosed with recurrent eosinophilic granuloma (EG) after presenting with oral lesions.
  • Both animals had multiple biopsies confirming EG, requiring repeated anesthesia for surgical intervention, which led to frequent recurrences of the disease.
  • Treatment with glucocorticoids (dexamethasone) and the antihistamine hydroxyzine significantly improved the lesions while reducing the need for anesthesia, suggesting an allergic component in the disease's underlying cause.
View Article and Find Full Text PDF

Cyclosporine A (CsA) is a commonly prescribed and effective therapy for canine atopic dermatitis. The purpose of this study was to investigate the potential relationship between patient body weight and CsA dosing. Seventy-seven cases of canine atopic dermatitis managed between 2000 and 2011 were evaluated retrospectively.

View Article and Find Full Text PDF
Noninflammatory, nonpruritic alopecia of horses.

Vet Clin North Am Equine Pract

December 2013

Noninflammatory, nonpruritic alopecias are uncommonly encountered in the horse. Alopecia areata, an apparently autoimmune hair follicle bulbitis produces focal, multifocal to widespread hair loss. The skin is otherwise normal.

View Article and Find Full Text PDF

Background: Various antihistamines have been used in the management of feline atopic dermatitis, with variable reported benefit. To date, there have been no randomized, double-blind, placebo-controlled, crossover clinical trials on the use of this drug class in cats.

Hypothesis/objectives: To evaluate the clinical efficacy of cetirizine hydrochloride for the control of pruritus and dermatitis in cats diagnosed with atopic dermatitis.

View Article and Find Full Text PDF

Data on fifty horses with hereditary equine regional dermal asthenia (HERDA; "hyperelastosis cutis") were collected on clinical, histopathological, ultrastructural and immunohistological findings. All horses were Quarter horses or of Quarter horse ancestry. Pedigree evaluation strongly supported an autosomal recessive mode of inheritance.

View Article and Find Full Text PDF

Abstract- Eighteen miniature schnauzers which developed a hair coat color change from normal to a golden color are reported. Average age of onset was 2.5 years, with no discernable sex predilection.

View Article and Find Full Text PDF