Sunday 9 November 2008

Mucopolysaccharidosis and Siamese cats

Mucopolysaccharidosis and Siamese cats.

I'll keep this short as Mucopolysaccharidosis is a complex disease, which also affects humans. In Medical, Genetic & Behavioral Aspects of Purebred cats (Edited by Ross D. Clark, DVM) it is stated as affecting the Siamese cat sometimes.

Mucopolysaccharidosis VI is a disorder affecting metabolism caused by a defective autosomal recessive gene. It causes a deficiency in an enzyme called N-acetylgalactosamine 4-sulfatase (src: Wikipedia); the above book calls the enzyme arylsulfatase B. This results in the storage of long chains of sugar carbohydrates in the cat's cells.

The symptoms are:
  • skeletal abnormalities including:
  1. wides spaced eyes
  2. small ears
  3. flattened face
  4. frontal bossing (prominent forehead)
  5. kittens at 1o weeks are smaller than normal and have corneal clouding and prolapsed third eyelids. There front are larger than normal. At 5 months they have an abnormal gait.
Mucopolysaccharidosis and Siamese cats to Cat Health Problems

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