The specific activity of PAF-AH in the TD patient’s leukocytes, erythrocytes and platelets was 77.56, 9.01 and 821.41 in pmol/min/mg of protein, respectively while in healthy women the corresponding activities were 6.60 (2.14-15.48), 17.26 (13.08-19.91), and 14.19 (11.74-17.92) (p < 0.05) (Figure 3). This evidence concerns the gene LIPH and thanatophoric dysplasia.