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Immunofluorescence staining of white and red gastrocnemius from 6-month and 30-month old rats with the anti-α-subunit antibodies. Cross sections of each type of muscle from young and aged rats were placed on the same slide and immunostained as described in methods. a-d: sections stained with anti-α1 antibody; e-h: sections stained with anti-α2 antibody.
