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In an attempt to evaluate the role of the Xpc gene in maintaining genomic stability in vivo under normal conditions, the age-dependent accumulation of spontaneous mutations in different tissues was analyzed in Xpc-deficient lacZ-transgenic mice. Brain, testis, and small intestine revealed no effects from the Xpc-deficiency, whereas liver, spleen, heart, and lung showed an enhanced age-related accumulation...
A vital question in the mutation theory of aging is whether mutation accumulates with age. If it does, what are the causes and consequences of the accumulation of mutation? The recent development of transgenic mice has made it possible to study mutation in different kinds of tissues and at a molecular level. An application of these mice to the study of age-dependent alteration has revealed that mutation...
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