Publications by authors named "N V Umnova"

Article Synopsis
  • Differences in PCDD/Fs concentrations were observed in adult bank voles depending on the season, with significantly lower levels in winter compared to summer.
  • The study analyzed both adult and offspring voles, finding no significant differences in PCDD/Fs levels between sexes.
  • The variations in PCDD/Fs accumulation were attributed to seasonal differences in diet and activity, emphasizing the importance of considering ecological factors when using animal models for environmental monitoring.
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For the first time, the levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were characterized in the tissues of wild small mammals living in contaminated sites near a municipal solid waste landfill (Moscow, Russia). The Ural field mice Sylvaemus uralensis, the bank voles Clethrionomys glareolus, and the common shrews Sorex araneus were trapped at 1- and 5-km distances from the landfield "Salariyevo." High-resolution chromatography-mass spectrometry was used to measure the levels of 17 PCDD/Fs congeners in the animal organisms and natural objects (soils, bottom sediments).

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We have examined cytogenetic status of the rural population living on dioxin-contaminated territories (DCT, TCDD in soil 2.6 ng/kg) compared to the villagers of the control area (TCDD in soil 0.18 ng kg(-1)).

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Background: Using methods of molecular toxicology to study dioxin intoxication consequences the contribution was accessed of pathologic alterations induced and manifested by specific biomarkers and ecogenetic effects among Vietnamese population living on contaminated territories. The causes of variability in individual sensitivity to toxic activity were also evaluated.

Materials And Methods: Individual biomedical indices were compared between those living in contaminated with dioxins (n = 8142) and control (n = 4421) regions.

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