Figure 1

Prevalence of maternal Mc compared to fetal Mc, as measured by male Mc in women with sons, in cellular subsets in healthy adult women. A total of 31 women were tested for maternal Mc and 27 women with sons were tested for fetal Mc in cellular subsets by Q-PCR targeting maternal-specific HLA sequences or the male DNA sequence DYS14, respectively (see Materials and methods). Seven parous women were tested for both maternal and fetal Mc on two different blood draws, two of whom were positive for both in the same cellular subset, four negative for both and one woman had a positive result in one subset for fetal Mc but negative for maternal Mc. (1) P=0.01, (2) P=0.005, (3) P=0.04, (4) P=0.05. ^*Results previously reported.¹⁵