Figure 4.

Increasing cell numbers in the regenerating thymus, and spleen, following surgical castration. Total cell numbers were determined for (a) thymus and (b) spleen at 2, 4 and 6 weeks post-castration, in male mice castrated or sham-castrated at 5 or 10 months of age. For 5-month-old mice data were determined from pooled samples of four organs, whereas for 10-month-old mice data were determined from individual samples (n=8) and represented as mean±SEM. As a control total organ cellularity for age-matched male mice was also included.