Fig. 14.
Telomerase expression in amplifying myocytes. (A) A small myocyte labeled by cardiac myosin heavy chain (red fluorescence; arrow); nuclei are stained by propidium iodide (blue fluorescence). The localization of telomerase protein in this myocyte nucleus is shown by white fluorescence. (B) In the same field as A, MCM5 labeling of the same myocyte nucleus by green fluorescence. (Scale bars = 10 m m.)