Antagonistic pleiotropy in mice carrying a CAG repeat expansion in the range causing Huntington’s disease

Abstract excerpt

Antagonist pleiotropy, where a gene exerts a beneficial effect at early stages and a deleterious effect later on in an animal's life, may explain the evolutionary persistence of devastating genetic diseases such as Huntington's disease (HD). To date, however, there is little direct experimental evidence to support this theory. Here, we studied a transgenic mouse carrying the HD mutation with a repeat of 50 CAGs...

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