The role of free radicals in intrauterine growth restriction (IUGR) in preg
nancy was investigated. Four parameters of cell membrane destruction were m
easured: malonyldialdehyde, Schiff bases, lipid peroxides, and conjugated d
ienes. Pregnant women were under medical care at the Medical University, In
stitute of Obstetrics and Gynecology in Lodz in 1997-98.
Three groups of patients were examined: I, healthy pregnant women, II, preg
nant women with clinical and ultrasonographic diagnosis of IUGR without pre
vious treatment, and III, women after pharmacological treatment. The course
of treatment was 10 days of intravenous injections of cocarboxylase, vitam
in C and solcoseryl, as antioxidant factors. The results showed that, in al
l cases of IUGR in pregnancy, the malonyldialdehyde mean level was higher (
2.13 and 1.66)than in normal pregnancy (1.5; p<0.05). Conjugated dienes in
groups II and III were higher(2.49 and 2.26)than in normal pregnancy (2.21;
p < 0.05). The Schiff bases level was low (6.8 AU) in group I, and signifi
cantly higher (7.62 and 7.34) in groups II and III, respectively (p < 0.05)
. Lipid peroxide levels in group II were higher than in group I (0.11; p<0.
05).
IUGR was correlated with the increase of membrane damage parameters. The ma
lonyldialdehyde and lipid peroxide levels were significantly increased in t
his state. Therapeutic methods decreased the concentration of malonyldialde
hyde and lipid peroxides.