Recent News for Genetic Problems

Article

Muscle Disorders in Warmbloods Easily Diagnosed through Biopsy

April 16, 2008

Owners of Warmbloods with debilitating--or sometimes just plain baffling--muscle disorders can get useful and reliable answers about their horses' conditions through a relatively simple muscle biopsy. So say University of Minnesota researchers,... Read More

Article

Polysaccharide Storage Myopathy: Blame It on the Genes

April 11, 2008

A genetic mutation in an enzyme called muscle glycogen synthase might be responsible for polysaccharide storage myopathy (PSSM)--a debilitating and life-threatening disease in horses characterized by abnormally high glycogen (the storage form of... Read More

Article

Service Pony Recovers from Health Crisis

April 10, 2008

Thanks to the skill and kindness of several Texas veterinarians, a blind woman's assistive guide pony is recuperating from serious illness.

Trixie is a nearly 14-year-old Pony of the Americas mare, and she has been Tabitha Darling's service... Read More

Article

2007 Morris Animal Foundation Equine Research Wrap-Up

December 14, 2007

The results of equine research funded by the Morris Animal Foundation (MAF) in 2007 added to scientists' understanding of foal pneumonia, hereditary muscle disorders, laminitis, and pharmacology.

Read More

Article

Researchers Pinpoint Link Between Appaloosa Coloring and Night Blindness

November 21, 2007

Congenital stationary night blindness causes vision deficits in Appaloosas with certain coat patterns.... Read More

Article

New Research on PSSM Prevalence, Heritability in Progress

October 04, 2007

Researchers with the University of Minnesota have identified polysaccharide storage myopathy (PSSM) in 6-12% of overtly healthy Quarter Horses on six farms involved in a new study. They also said the disease could be more common within certain... Read More

Article

Morris Animal Foundation Funding 11 Equine Studies in 2008

September 25, 2007

In 2008, the Morris Animal Foundation (MAF) will fund about 120 animal health studies, including 11 new and continuing studies for horses. Equine enthusiasts are invited to sponsor or co-sponsor one of these studies with a total gift of $3,000 o... Read More

Article

Managing Hyperkalemic Periodic Paralysis

August 08, 2007

At the 2006 American Association of Equine Practitioners Convention, Dr. Sharon Spier spoke about HYPP.... Read More

Article

Glycogen-Branching Enzyme Deficiency (AAEP 2006)

July 16, 2007

Glycogen-branching enzyme deficiency, a genetic mutation affecting a particular glycogen-storage enzyme, is traced back to Quarter Horse sire King or his sire, Zantanon. Up to 8% of Quarter Horses and Paint horses carry the GBED defect. ... Read More

Article

Polysaccharide Storage Myopathy

July 09, 2007

Stephanie Valberg, DVM, PhD, professor of large animal medicine and director of the University of Minnesota's Equine Center discussed PSSM at the AAEP Convention 2006. The disorder causes muscle pain, stiffness, and cramping, and some horses... Read More

Article

Diagnostic Approach To Equine Muscle Disorders

July 07, 2007

Stephanie Valberg, DVM, PhD, professor of large animal medicine and director of the University of Minnesota's Equine Center, began the in-depth seminar on muscle disorders by discussing diagnosis of muscle disorders, beginning with a careful... Read More

Article

Hyperkalemic Periodic Paralysis: 14 Years Later

July 04, 2007

Sharon Spier, DVM, Dipl. ACVIM, PhD, associate professor at the University of California, Davis, has pioneered much of the research on HYPP. She presented updated information gleaned over the past 14 years on this disease at the 2006 AAEP... Read More

Article

Incidence and Management of Exertional Rhabdomyolysis

July 03, 2007

Stephanie Valberg, DVM, PhD, professor of large animal medicine and director of the University of Minnesota's Equine Center, tackled the broad subject of skeletal muscle disease related to exercise at the 2006 AAEP Convention.

This has... Read More

Article

Polysaccharide Storage Myopathy Discussion Planned at SmartPak Store

June 14, 2007

Most horse owners are familiar with the term "tying up," which describes the pain and cramping of a horse's muscles with exercise. Veterinarians refer to this condition as exertional rhabdomyolysis, and now recognize a specific type known as... Read More

Article

HERDA: DNA Tests Available for Disfiguring Skin Disease

May 28, 2007

Scientific research has scored another significant victory in the equine world. Two DNA tests are now available to detect carrier status for hereditary equine regional dermal asthenia (HERDA), also known as hyperelastosis cutis (HC).

Today... Read More

Article

Finding and Testing Low-Sugar Forage

May 14, 2007

Did the brown, stemmy, overmature hay you thought was perfect for your easy keepers make them even fatter? ... Read More

Article

Muscle Disorders (AAEP 2006)

March 01, 2007

Careful inspection of a horse's muscle mass and symmetry and hands-on palpation educates the examiner about the horse's muscle tone and comfort level. The examiner also evaluates the horse in motion and conducts a full lameness exam.... Read More

Article

Neonatal Nuances

February 01, 2007

The first days of a foal's life can be risky; there are a number of things that can go wrong. Some problems can be dealt with easily (such as constipation), while others are life-threatening (such as a ruptured bladder).

In this article, Bonni... Read More

Article

Prevalence of PSSM in Quarter Horses

September 14, 2006

Up to 6% of apparently healthy Quarter Horses could have subclinical polysaccharide storage myopathy (PSSM).... Read More

Article

Feeding to Prevent and Control Disease

August 01, 2006

Dietary management can work like magic for specific equine diseases.... Read More

Article

More Than Skin Deep?

April 01, 2006

It was two years ago--in April of 2004--that this magazine published the announcement that the Poco Bueno Quarter Horse sire line had been identified as carrying the recessive gene that causes hyperelastosis cutis (HC, also known as hereditary... Read More

Article

Understanding Congenital Stationary Night Blindness

March 27, 2006

Canadian researchers are investigating the cause of a condition found primarily in Appaloosas that prevents them from seeing in the dark. Congenital stationary night blindness (CSNB) is a hereditary, non-progressive condition for which there is... Read More

Article

Inheritance of RER in Thoroughbreds: One Affected Parent Required

January 01, 2006

Recurrent exertional rhabdomyolysis (RER, tying-up) causes affected Thoroughbreds to suffer recurring episodes of muscle cramping, stiffness, excessive sweating, and a reluctance to move after exercise. With no cure available, information on how... Read More

Article

Inheritance of RER in Thoroughbreds

November 21, 2005

Recurrent exertional rhabdomyolysis (RER) causes affected Thoroughbreds to suffer recurring episodes of muscle cramping, stiffness, excessive sweating, and a reluctance to move after exercise. With no cure available, information on how RER might... Read More

Article

Equine Genetic Disease: Who's At Risk?

October 01, 2005

Many DNA sequence variations are fine; they just give rise to the broad spectrum of colors, sizes, and other characteristics we see in the horse population. Some variations, however, cause problems. These might range from a genetic predisposition... Read More