Tag archives: Skin disease

At Neogen/Paw Print Genetics (PPG), we are always exploring the current research to produce new tests for disease-causing mutations.  Every month new discoveries are made and published in the veterinary scientific journals.  On September 28, 2022, we added a host of new tests for disease-causing mutations in many breeds to our menu as we strive to be a convenient source for your genetic testing requirements. Listed here are the 20 new tests PPG is now offering and some of the breeds affected by these mutations.  Some of these new tests are for mutations that are rare, even within the associated breeds of concern.

New tests for the basset hound

We are thrilled to now offer a test for Lafora Disease.  This test for the late onset neurologic condition has been much anticipated for the basset hound, miniature wirehaired dachshund, and other breeds at risk.  Because Lafora Disease presents later in a dog’s life, knowing the status for this mutation and breeding appropriately will lower the frequency of the mutation within a population and reduce the number of at-risk/affected dogs.  The NHLRC1 mutation is a complex test that requires high-quality DNA. Therefore a ...

There are few dog breeds that can match the spirit and spunk of the Norfolk terrier. Prior to the recognition of the Norfolk terrier as its own independent breed, this small, English bred working terrier fell under the Norwich terrier banner, in which either drop or prick ears were recognized as acceptable traits. With time, Norwich breeders began to differentiate dogs based upon ear carriage. The drop eared members of the breed eventually became known as the Norfolk terrier, thereby splitting the breed into two very similar, yet distinct lines. The Norfolk terrier was officially recognized by the English Kennel Club in 1964 and by the American Kennel Club in 1979. Two independent breed standards were established for these breeds and despite their common roots, the breeds have diverged slightly in their physical appearance over the past few decades. The Norfolk terrier is well known for their energy, loyalty, bravery, and affectionate demeanor. Breeders of the Norfolk terrier take pride in producing dogs with great temperament while maintaining the breed’s ability to work. That being said, today’s Norfolk terrier is more commonly found in homes as a companion animal rather than fulfilling its original purpose of hunting rodents and other ...

Like other popular retrieving breeds such as the Labrador, golden, and flat coated retrievers, the American bred, Chesapeake Bay retriever can trace its roots back to the St. John’s water dog, a purpose bred dog originating in the Canadian providence of Newfoundland. With its wavy and slightly oily, waterproof coat, the Chessie has become a prominent fixture at the side of bird hunting enthusiasts since its development in the 19^th century. Not surprising to those that have lived and worked with a great Chesapeake, the breed has increased in popularity in the US over the past several years as indicated by their jump in the AKC registration rankings from 49^th in 2009 to 40^th in 2014. Unfortunately, like other pure bred dogs, along its path to modern popularity the Chesapeake has developed some inherited genetic disease concerns that are known to cause medical issues for some dogs and can be a source of heartache for those that love them. One particularly severe, inherited condition unique to the Chesapeake Bay retriever, is a condition known as ectodermal dysplasia or skin fragility syndrome (ED/SFS).

What is ED/SFS?

ED/SFS is a severe, inherited disease in which affected dogs are ...

In this third part of a four part blog series examining preventable inherited diseases in the Labrador retriever (See previous blogs here; part one and part two) we will be examining a relatively common neuromuscular condition known as exercise-induced collapse and a skin disorder unique to the Labrador known as hereditary nasal parakeratosis.

Exercise-Induced Collapse

There aren’t many inherited diseases more concerning to Labrador lovers than exercise-induced collapse (EIC). This potentially fatal condition caused by a mutation in the DNM1 gene results in an inability to produce adequate amounts of a protein called dynamin 1, which plays an important role in nerve signal transmission in the body. As its name suggests, dogs affected with EIC typically present during periods of intense exercise, often before 2 years of age. During an episode of collapse, affected dogs will commonly develop an awkward, wobbly gait that progresses to severe weakness, dragging of the hind limbs, and collapse lasting for 5 to 10 minutes. Though unable to rise, dogs experiencing an episode of collapse are usually mentally alert and pain-free. Most dogs completely recover within 30 minutes and appear normal between episodes. Most concerning however, is that in some cases affected dogs can progress ...

Click for Part 1 and Part 2 of this ongoing blog about itchy dogs.

Though many itchy dogs suffer from food or environmental allergies (as discussed in previous blogs of this series), parasites of the skin and hair coat (called ectoparasites) are another important cause of itchiness in our canine companions. In fact, performing parasite testing should be considered a veterinary standard for itchy dogs. Ruling out parasitic causes of itchiness is important because they can greatly complicate diagnosis and treatment of other skin related diseases. Though there are many individual species, in this and the next blog in this series we will examine four general groups of ectoparasites that infest our dogs.

Lice

The first experience I can recall involving lice was in elementary school; a time period in life when an infestation of head lice could turn any otherwise sanitary, well-meaning child into the classroom leper. Luckily for us dog owners, we don’t need to fret much about our own health if our canine children come down with an infestation of lice as they tend to be very species-specific in regards to which creatures they choose to call home.

Lice come in two main varieties; chewing lice and ...

The Golden Retriever’s easy going, gentle demeanor combined with their robustness of body, eagerness to please, and significant intelligence have consistently kept them near the top of the most popular American dogs for many years.  As a result, Paw Print Genetics frequently comes in contact with golden retriever owners and breeders looking for specific genetic tests to help make sure their dogs are going to be healthy, and in addition, that their favorite breeding sire or dam is not a carrier for a recessive disease that may be inherited by their offspring.

One of the genetic diseases most commonly tested for in Golden Retrievers is the skin disease, ichthyosis.  Ichthyosis is an autosomal recessive disease occurring due to mutations in the PNPLA1 gene and can be seen as early as the first few weeks of life in affected animals (to be affected, dogs must carry two copies of the mutated gene, one from each parent).  The prefix of the word, “ichthy-”, comes from the Greek word, “ikhthus”, meaning fish.  This is in reference to the fish-like dermal scales that characterize this disease.  Most commonly, dogs present with mild to severe generalized skin scaling of ...