Hypocatalasia (or acatalasemia) is a rare genetic disorder caused by a mutation in the CAT gene, leading to a severe deficiency of catalase. This enzyme normally protects tissues against oxidative stress. The c.979G>A (p.Ala327Thr) mutation was first identified in a Beagle colony and subsequently detected in pet Beagles. A homozygous dog notably developed oral cavity gangrene with tooth loss at a young age. The disease may remain clinically silent for a long time, which highlights the importance of genetic screening in breeding dogs. This test is also recommended for the Basset Hound as part of the Flemish government breeding program (see the official program).
Transmission
Autosomal recessive
Breed
Basset Hound, Beagle, Miniature Poodle, Toy Poodle
