[The change of filtration-index of erythrocyte malonyldialdehyde and superoxide dismutase in patients with pregnancy induced hypertension].

OBJECTIVE

To observe the relationship between the filtration-index of erythrocytes and concentration of erythrocytic superoxide dismutase (SOD), plasma malonyldialdehyde (MDA) in cases of pregnancy induced hypertension (PIH).

METHODS

We have measured the level of MDA and filtration-index, SOD content of erythrocytes in maternal and cord blood of 31 cases with PIH (group A) and 25 cases of normal pregnancy (group B) using TBA method, nucleopore membraned cell deformability meter and pyrogallol self-oxidizing method.

RESULTS

The mean filtration-index level and erythrocytic SOD were significantly higher in group A than those of group B (P < 0.01 and P < 0.05). The mean content of plasmatic MDA in group A increased markedly (P < 0.01) compared to that of group B. There was no difference of these parameters in cord blood between group A and group B.

CONCLUSION

The decrease of red cell deformability due to the increase of plasma MDA level may be the underlying mechanism of PIH.