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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Evaluation of the mouse mutant "wasted" as an animal model for ataxia telangiectasia. I. Age-dependent and tissue-specific effects.

The wasted mouse, an animal model proposed for the genetically transmitted human disease ataxia telangiectasia (AT), was examined for its biological, cytogenetic and biochemical properties. In affected homozygotes, a marked age-dependent decrease in the ratio of spleen and thymus to body weight, and a slight but significant decrease in the liver to body weight ratio were observed while no such change was found in the kidney. An age-dependent increase was observed in the frequency of both spontaneous and gamma-ray-induced chromosomal aberrations in bone marrow cells of wasted mice. In littermate control mice, neither of these alterations was observed in an age-dependent manner. The activity of a primer activating enzyme, which has been reported to be deficient in AT cells, also decreased with age in spleen cells, but not in liver cells of affected mice. However, alterations in apurinic DNA endonuclease activity were not detected in the developmental stages examined. These data indicate that this mouse mutant may serve as a useful animal model for studying the relationships between DNA repair and lymphoid tissue differentiation.[1]


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