MDR1 Genetic Testing in Dogs

Collies, their crosses, other herding breeds, and other mixed breed dogs may possess a mutation in a gene that produces the protein, P-glycoprotein. P-glycoprotein is the product of the multi-drug resistance gene MDR-1. The functional protein plays an important role in absorption, distribution, metabolism, and excretion of many drugs and substances used in veterinary medicine. P-glycoprotein is a pump found in tissues of the intestine, brain, biliary system, kidneys, placenta, and testes. Its normal…

Read More

Mange in Dogs: Canine Demodex Diagnoses and Treatment

There are a few demodex mites that can cause canine demodecosis. The most common is Demodex canis. Another is Demodex injai. Demodex canis is a normal inhabitant of the skin of healthy dogs and resides in hair follicles. The mite spends its entire life cycle on the dog and it is not considered to be contagious. Dogs become colonized with this mite shortly after birth by direct transmission from the mother to the puppy. Under normal conditions, the presence…

Read More

Malassezia Dermatitis

Malassezia dermatitis is an infection of the skin caused by a yeast named Malassezia pachydermitis. This is a common yeast that is normally found in small amounts on the skin of dogs and cats. In animals with allergies, hormonal diseases, scaling disorders or in those pets that have been treated with steroids, the yeast increase in number and the pet may develop Malassezia dermatitis. West Highland white terriers, Basset Hounds, American Cocker Spaniels,…

Read More

Interdigital Folliculitis and Furunculosis (“Interdigital Cysts”)

Interdigital folliculitis and furunculosis (IFF) is a common presenting problem. I see at least one case per day! Why? It is a frustrating skin problem in many dogs and for many veterinarians and pet parents. There are predisposing causes, primary diseases that contribute, and secondary problems that exacerbate. The cause is multifactorial. The management is multimodal. The approach to a dog with IFF starts with the recognition of the problem, identification of any predisposing factors…

Read More

Inhalent Allergies

Typically, allergies to pollen, mold, dust, etc. develop between 1-3 years of age. Animals usually do not outgrow their allergies and often times the allergy worsens with age. Scratching, rubbing, licking or chewing face, feet, limbs, armpits, and sides are all common signs of allergies. Additionally, one may see ear infections, runny red eyes, and sneezing. Animals with allergies are more likely to get secondary bacterial and/or yeast infections of their skin. Diagnosing and treating…

Read More