The relative NAMPT transcript levels of the maternal parts of the normal, IUGR, PE, and GDM placentas (0.82 ± 0.36, 0.58 ± 0.07, 2.11 ± 0.11, 0.29 ± 0.01) were compared with those of the fetal parts (1.02 ± 0.55, 0.61 ± 0.63, 0.47 ± 0.02, 0.14 ± 0.02), showing the highest values for the maternal part of PE placentas and the lowest values for the maternal part of GDM placentas. The gene discussed is NAMPT; the disease is fetal growth restriction.