Tag archives: blood in urine

Prevention is Smart Breeding- Cystine Bladder Stones in the Newfoundland Dog

Prevention is Smart Breeding- Cystine Bladder Stones in the Newfoundland Dog
'Scout' courtesy of Brad Geddes via Flickr, Creative Commons license

From its early history as a North American working dog used to retrieve fishing nets and perform human water rescues, the beautiful and intelligent Newfoundland dog has carved out a well-deserved place in the heart of dog lovers around the world. Their characteristic large size, marked by heavy bones, powerful musculature, webbed feet, and thick hair coat make the Newfoundland particularly adept at tasks involving swimming. However, they are just as capable and content pulling carts on land and performing other land-based tasks. In addition, their generally calm, loyal, and affable temperament have helped establish them as great family dogs.  

Over the years, Newfoundland breeders have selectively bred dogs that have displayed the most desirable characteristics in an effort to improve their breed. Unfortunately, alongside these desirable traits, sometimes the predisposition to produce offspring with certain inherited diseases are also silently passed from generation to generation in the form of genetic mutations. Such a genetic mutation found in the canine SLC3A1 gene (first described in 2000) is responsible for a potentially life-threatening condition in the Newfoundland known as cystinuria. Luckily for Newfoundlands and those that love them, cystinuria can be eliminated from most blood lines through the incorporation of ...

Prevention Is Smart Breeding- Urate Bladder Stones in the Spanish Water Dog

Prevention Is Smart Breeding- Urate Bladder Stones in the Spanish Water Dog

Though reliable accounts marking the early origins of the Spanish water dog (SWD) are lost to history, likely ancestors of the SWD (and probably the Portuguese water dog) were described in the Iberian Peninsula around the 12th century. Primarily used as a herding breed, the Spanish water dog has also been trained to perform tasks for fishermen and hunters including towing boats to shore, gathering fishing nets, and retrieving game from waterways. Though still used as working dogs in modern day Spain and other countries, the demand for Spanish water dogs dropped precipitously during the industrial revolution of the late 18th and early 19th centuries when machines took over many tasks historically performed by the SWD and other breeds. This decrease in demand led to a decline in the world Spanish water dog population which still remains relatively small today.

In general, dog breeds with smaller population sizes tend to also have a smaller amount of genetic diversity within the breed. This means that any two individual dogs from a small breed population are more likely to share the exact same genetic information at any given location in their genome, including disease associated genetic mutations. This is ...

Preventing Inherited Urate Bladder Stones in the Bulldog

Preventing Inherited Urate Bladder Stones in the Bulldog

Though the cruel bull-baiting practices for which the ancestors of bulldogs were used have long passed, the enthusiasm for the modern bulldog as a friendly companion animal is as fervent and robust as ever. Ranked the 4th most registered dog in the AKC, it’s no secret to most that the bulldog has established itself as one of America’s favorite canines. Through selective breeding practices, the previously fierce and aggressive bulldog of old has given way to a gentle, even tempered, yet strong willed breed with copious amounts of character; in both temperament and physical attributes. Unfortunately, like other purebred dogs, during the course of breed development, some inherited genetic diseases have come to light that can make life difficult for bulldogs and those that love them. Luckily, through the use of genetic testing technologies and selective breeding, some of these inherited diseases can be completely eliminated (or greatly reduced in frequency) from blood lines. One example of an inherited disease that can now be prevented in the bulldog is an inherited form of urinary stones known as hyperuricosuria (HUU), caused by a genetic mutation in the SLC2A9 gene.

Clinical Signs of HUU

Dogs affected with HUU lack a protein which ...

Primary Hyperoxaluria: A Preventable Inherited Disease of the Coton de Tulear

Primary Hyperoxaluria: A Preventable Inherited Disease of the Coton de Tulear

There are not many dog breed names that give a more apt description of the breed’s physical appearance than that of the coton de Tulear. Taken from the French word “coton”, meaning cotton, the coton de Tulear’s signature soft white hair (not fur) has long been compared to the fluffy fiber of the cotton plant. According to the Malagasy Coton de Tulear Club of America, the coton de Tulear was developed in Madagascar around the 17th century and is still the official dog of this island nation. Predecessors to the modern coton de Tulear were likely brought to the island by sailors or pirates around this time period. Though they are generally a healthy breed, unfortunately, like other purebred dogs, the coton de Tulear is known to inherit some genetic diseases that can make life challenging for this small, friendly companion and those that love them. One such inherited disease of the coton de Tulear is a severe condition known as primary hyperoxaluria (PH) that occurs due to a mutation in the AGXT gene.

Dogs affected with PH lack the ability to produce an enzyme that plays an essential role in the breakdown of a compound known as glyoxylate ...