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  • Title: Heritability of exocrine pancreatic insufficiency in German Shepherd dogs.
    Author: Westermarck E, Saari SA, Wiberg ME.
    Journal: J Vet Intern Med; 2010; 24(2):450-2. PubMed ID: 20102502.
    Abstract:
    BACKGROUND: Several studies have revealed that exocrine pancreatic insufficiency (EPI) is an inherited disease in German Shepherd Dogs (GSDs). Pedigree analyses have suggested an autosomal recessive inheritance model. OBJECTIVE: Test mating of 2 dogs with EPI. ANIMALS: A sire and dam purebred GSD both with EPI and a litter of 6 puppies. METHODS: Test mating and long-term follow-up of offspring. The pancreas was biopsied via laparotomy on 26 occasions. Serum trypsin-like immunoreactivity was measured. Study was approved by Animal Ethics Committee. RESULTS: During the 12-year study period only 2 of the 6 offsprings developed pancreatic acinar atrophy (PAA). In 1 puppy, end-stage PAA and in the other puppy partial PAA was diagnosed. CONCLUSIONS AND CLINICAL IMPORTANCE: PAA is not a congenital disease in GSDs. This study provided evidence that PAA is not inherited in a simple autosomal recessive fashion.
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