Search for: [Abstract = "ferences in the content of paramagnetic substances in the placentas of women with PIH as compared with the control group. Statistically significant increase in free radicals level in the placentas of the women with PIH was observed. In the spectrum of the placenta samples the presence of a second signal was found, the source of which were ions of metals from transitory groups. Its detectability is higher in the samples of the placenta from women with normal pregnancy than from those with PIH. Some ions \(manganese, copper and zinc\) are components of the superoxide dismutase \(MnSOD and CuZnSOD, respectively\), which can play a fundamental role in oxidoreductive systems. One of the paramagnetic compounds which can influence the occurrence of PIH is nitric oxide. However, EPR spectroscopy did not reveal its presence. Instead, slight amount of nitric oxide was found with the use of the indirect method – the Griess’s method. The differences in NO content between the study groups were not statistically significant. Morphological assessment of the placenta samples showed similar features in both groups, however, some morphological changes in the placentas from women with PIH were more intense. The analysis of the obtained results was the basis for the following conclusions\: 1. The use of EPR spectroscopy for the determination of the paramagnetic substance content, inclusive of free radi"]

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