Fig. 5.
Comparison of baseline platelet counts in c-mpl−/− mice at different ages.
Platelet counts in older mice (both 16 weeks and 33-46 weeks) were significantly higher than those in young mice (6-12 weeks) (P < .0001 for 16 weeks versus 6-12 weeks;P < .0001 for 33-46 weeks versus 6-12 weeks). The mean platelet count for each group is indicated by the black horizontal bar. Each point represents one mouse. The number of mice in each age group is shown in parentheses. The normal mean platelet count was 1053 × 109/L ± 176 × 109/L (n = 17).
