(A) Average OCR (pmoles/min/µg protein) by platelets isolated from non-pregnant (red squares, n=19), healthy pregnant (blue triangles, n=20) and preeclamptic pregnant (green circles, n=20) women. Oligomycin (2.5 μM), 2,4-DNP (15 μM), and antimycin A (10 μM) were added when indicated. (B) Graphical presentation of OCR rates computed from the traces in (A) as described in the ‘Materials and methods’ section. Red lines or bars (non-pregnant), blue lines or bars (Healthy pregnant) and green lines or bars (Preeclamptic pregnant). Data are presented as mean ± S.D. *P<0.05.