Tag archives: Canine DNA testing

Paw Print Genetics is celebrating the Australian Cattle Dog this week. Although generally considered a relatively healthy breed, like other purebred dogs, the Australian Cattle Dog is known to inherit several genetic diseases. Testing your dog prior to breeding prevents the disease through avoidance of producing puppies at-risk. This brief article describes a few of the diseases that can currently be tested for in Australian Cattle Dogs.  You can find a complete list and more information at  https://www.pawprintgenetics.com/products/breeds/91/.  All of these tests performed by Paw Print Genetics are accepted by the Orthopedic Foundation For Animals. 

Cystinuria is an inherited disease that is known to affect amino acid absorption by the kidneys. This abnormality leads to cysteine crystals and/or stones in the bladder that can block the ureters or urethra and stop the normal flow of urine. If not treated, urinary stones can cause urinary tract infections, kidney failure and even death.

Degenerative Myelopathy (DM) is a late-onset neurological disease found in over 100 breeds of dog.  Known as amyotrophic lateral sclerosis (ALS or Lou Gehrig’s Disease) in humans, affected dogs typically begin to show signs of neurological weakness in ...

Brief personal history as credentials . . .

In the world of dog breeding, I started long before any genetic testing was readily available, with Chesapeakes, more than 25 years ago now. We performed OFA Hips and that was about it. Then I went back to my herding dog roots with Australian Shepherds, Miniature Australian Shepherds and now Miniature American Shepherds. What I have to say about genetic testing however, applies regardless of breed.

Some of you that have been in this for a while, may remember a company that offered a slew of testing, all in one package, for $25. It was the hottest item on the market. I remember feeling very virtuous about being able to test all my dogs, for a reasonable price, for a whole bunch of things that I didn't understand at the time. But as breeders we educated ourselves, found out that testing really DOES matter and learned how to breed away from some of the unfortunate genetics that our dogs carried. It really was an exciting time in breeding because it gave us such powerful, valuable information that increased the overall health of the dogs we produced. The problem was that this company was not all ...

Since the announcement that we ended our litigation over the gene patents for  progressive retinal atrophy (prcd), collie eye anomaly, congenital stationary night blindness in Briards, and retinal dysplasia/oculoskeletal dysplasia in Labradors, there has been a huge outpouring of encouragement and congratulations from our customers. At Paw Print Genetics, we are all very touched by this support.

I have also received a number of emails from customers worried that we may raise our prices because of this new sublicense. I have even seen this question debated on Facebook and understand the concern.  As you can imagine, the lawsuits from the past couple of years were expensive. We paid hundreds of thousands of dollars in legal fees to support our cases.  Last year, we won our case in Federal court and the patent for exercise-induced collapse (EIC) was invalidated. This allowed our customers to register their EIC results with the Orthopedic Foundation for Animals (OFA), but also cleared the way for other laboratories to offer this test without fear of litigation, even though they did not participate in the lawsuits or help fund our cause. As we are recovering from these huge litigation costs, we are doing all ...

It’s easy to see why the beagle has been ranked near the top of AKC registered dog breeds since their acceptance in to the AKC registry in 1885.  Their amiable personality, fantastic sense of smell, and natural talent as a hunter and guard dog have kept them popular with American dog lovers for the past 130 years. Unfortunately, like most popular, purebred dog breeds, particular inherited diseases can make life tough for some beagle blood lines. Luckily, the genetic cause of some of the beagle’s known inherited diseases have been discovered. Thus, allowing laboratories such as Paw Print Genetics to develop genetic tests that allow for the elimination of these disorders through informed selective breeding. The following genetic tests are available at Paw Print Genetics:

Musladin-Lueke Syndrome

One of the largest inherited disease concerns for beagle breeders is a disease known as Musladin-Lueke Syndrome (MLS). MLS is listed on the Canine Health Information Center (CHIC) as a required test for the beagle and is typically identified in affected puppies by 2 to 3 weeks of age. MLS is a connective tissue disease that causes stiff, contracted joints, and inelastic skin giving affected dogs a characteristic tip-toe walk described as ...

Since we opened Paw Print Genetics in April of 2013, we have had the opportunity to work with many breeders and other dog owners who already had previous experience with genetic testing of their dogs. Though the vast majority of these clients have praised us for our ease of ordering, unrivaled customer service, and quick test results, some clients have expressed some confusion in regards to why (or how) we use cheek swabs as our default method of DNA collection opposed to other methods that they were already familiar with.

In The Beginning

When making choices about how Paw Print Genetics would operate, we decided we wanted to eliminate as many barriers to canine inherited disease testing as possible. Not only did we want to make testing more convenient by offering as many disease tests as possible under one roof, we also wanted to make the experience of DNA collection easy and more convenient. To accomplish this, we chose to allow our clients to collect DNA in their own home or kennel with cheek swabs we provide (at no additional cost) after an order is placed. This decision eliminates the time, effort, and expense our clients had previously had to ...

Genetic testing may seem simple on the surface.  Order a test.  If it’s positive, the dog will have symptoms.  If it’s negative, there is no risk for the disease.  Open and shut.  However, there are many molecular details that can make genetic testing extremely complicated.  Today’s topic is reviewing these facts and how they impact the diagnosis of a genetic condition and the chance it may happen again.  My goal isn’t to bestow upon you an honorary degree in genetics, but to help you understand how these diseases are diagnosed and how genetic testing for those diseases is designed and interpreted.

Although genetic testing is expanding at an extremely fast pace, it is not perfect.  Genetic testing can allow you eliminate certain conditions but, unfortunately, nobody has a crystal ball and can therefore, not exclude all possible diseases in any dog. Genetic tests are designed after a mutation causing a disease has been described in the medical literature. It may be a mutation common in a particular breed or it may be very rare. In addition, it may not be the only mutation in that gene, or there may be other genes ...

In my last blog, I defined words that described when symptoms may present themselves in a dog affected with a genetic condition.  Today’s topic of discussion is how those symptoms show up (or not show up).  These terms are easily confused with each other.  I’ve even heard some geneticists can get these definitions mixed up.  Let me introduce two terms: Incomplete penetrance and variable expressivity.

Incomplete penetrance is a term that describes symptoms, which may or may not be present in a dog with an at-risk or affected genotype.  The dog has the mutated gene in the right number of copies to cause the disease, but the dog may not show physical symptoms of the disease.  As you can imagine, this can cause some confusion when examining the pedigrees of your dogs and this is when genetic testing becomes an important tool.  If genetic testing is positive, we know the dog has the mutation that causes the disease. Regardless if there are symptoms, this dog can pass this mutation on to its offspring.  Knowing this information may impact breeding practices, as discussed in previous blogs.  The concept of incomplete penetrance is an ...

When it comes to diagnosing genetic conditions in dogs (or in humans), doctors use a variety of clues.  One of those clues may not necessarily be what the physical symptoms are, but when did the physical symptoms start happening.  Today’s blog focuses on the when, not the what, of genetic diseases.  Although the when of genetic disease does not exclude the importance of what; when will be today’s topic.  Now that I’ve thoroughly confused you and you may be thinking about the old slapstick comedy routine “Who’s on First” by Abbot and Costello, let’s get started. 

“Congenital” is a term that often floats around the medical community when discussing disease symptoms.  It simply means “present at birth”.  This complicated word comes from the Latin root “congenitus”, which literally means “born together with”.  Con – with; genitus – to bear, or beget.  If a symptom or group of symptoms is seen right when a pup is born, it is congenital.  When making a diagnosis of an inherited genetic condition, knowing the symptoms are congenital can shorten the list of what genetic condition may be the cause.  Only recently has canine ...

Paw Print Genetics often gets asked about an optimal time to swab a new litter of puppies. When reviewing these tips, please keep in mind that it can take up to two weeks to obtain results once Paw Print Genetics has received the swabs.  Therefore, allow plenty of time for the laboratory to process your samples before promising a specific date that the puppy can join its new home.

Puppies and dogs can be tested at any age. However, it is a good idea to allow the puppies to stabilize after birth, bond with their mother, and demonstrate that they can feed and grow before testing.  You do not have to wait until the puppies are weaned; once the puppies are stable and thriving, they can be swabbed.  For puppies that are not weaned, the puppies should be separated from their mother for at least two hours prior to swabbing. This is to ensure we get the DNA of the puppy instead of the mom's DNA. During this time, they should have plenty of water and should not be allowed food to avoid contamination of samples. Once the swabbing is completed, the pups can rejoin their ...

Meeting our customers face to face and personally answering their questions is a high priority for Paw Print Genetics. In the last month, several members from our team have hit the road to attend dog shows. We had the pleasure to meet hundreds of dogs and their owners to talk about the value of inherited disease testing when breeding and buying a puppy.

In late September, Casey, our DVM and Assistant Medical Director and I travelled to Salem, Oregon for The Poodle Club of America’s Regional Specialty. We met poodles of all sizes and colors from all over the region. The poodle owners spent hours grooming and attending to their canines, but when they had a moment they stopped by our booth to talk about their concerns regarding genetic diseases.  Our Poodle Panel  includes six inherited diseases found in the breed. After discussing health concerns with these owners, most indicated that they always test for PRA-PRCD and neonatal encephalopathy. Many people were unaware that several breeds, including poodles, are possible carriers for degenerative myelopathy, a devastating disease with onset later in life.

Before returning to Spokane, we had one more show to attend in Kennewick, Washington for the 80 ...