Specific transglutaminase activity of plasma FXIII in healthy populations with different FXIII Val34Leu genotypes.

(A) Frequency distribution of the specific activity of plasma FXIII (n = 141). Normal distribution was verified by 2 different statistical tests. The ideal normal distribution is indicated. (B) Means and standard deviations of FXIII specific activity in groups of healthy controls with different FXIII Val34Leu genotypes and in the total population. There were no statistically significant differences among the groups with different genotypes or between each of these groups and the total population.