Fig. 4.

A. Percentage of Prx1, 2 and 3 found in the oxidised (dimerised) form on non-denaturing gels from FDB muscle fibers from adult (dark blue bars) and old (light blue bars) mice. The graphs show mean ± SEM. *P < 0.05. Redrawn from Stretton et al., [102].

B.Change in the Cys Redox ratio in specific cysteines of peptides found in the gastrocnemius muscles from old and adult mice. Data are expressed as the relative change with increasing age in the reduced/oxidised form (i.e. a ratio greater than one indicates an increased proportion in the reduced form in old mice). Redrawn from Ref. [103]. . (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)