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J Biomed Biotechnol. 2011;2011:646257. doi: 10.1155/2011/646257. Epub 2011 Jan 3.

Glycogen storage disease type Ia in canines: a model for human metabolic and genetic liver disease.

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1
Department of Small Animal Clinical Sciences, University of Florida, Gainesville, FL 32610, USA.

Abstract

A canine model of Glycogen storage disease type Ia (GSDIa) is described. Affected dogs are homozygous for a previously described M121I mutation resulting in a deficiency of glucose-6-phosphatase-α. Metabolic, clinicopathologic, pathologic, and clinical manifestations of GSDIa observed in this model are described and compared to those observed in humans. The canine model shows more complete recapitulation of the clinical manifestations seen in humans including "lactic acidosis", larger size, and longer lifespan compared to other animal models. Use of this model in preclinical trials of gene therapy is described and briefly compared to the murine model. Although the canine model offers a number of advantages for evaluating potential therapies for GSDIa, there are also some significant challenges involved in its use. Despite these challenges, the canine model of GSDIa should continue to provide valuable information about the potential for generating curative therapies for GSDIa as well as other genetic hepatic diseases.

PMID:
21318173
PMCID:
PMC3027000
DOI:
10.1155/2011/646257
[Indexed for MEDLINE]
Free PMC Article
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