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Токсикологическая оценка сочетанного воздействия дециса и Т-2 токсина на организм животных

Токсикологическая оценка сочетанного воздействия дециса и Т-2 токсина на организм животных

Abstract

Conducted a toxicological assessment of combined effects of Decis and T-2 toxin on the body of animals. The studies yielded the following results. Average lethal dose of Decis and T-2 toxin to albino rats for the separate effects of: 45.8 and 3.0 mg / kg, respectively, when combined 38.3 and 1.8 mg / kg for rabbits in the division: 356.7 and 0.54 mg / kg, combined 290.0 and 0.46 mg / kg, indicating a synergistic action of toxicants, the coefficient of accumulation is 4.8, which is typical for substances with moderate cumulation. The combined effects of Decis and T-2 toxin at the level of current MACs for each toxin exerts embryotoxic and teratogenic effects on the body of white rats: pre-implantation loss of fetuses increases relative to controls by 40.5% postimplantation death by 47.1%, the overall fetal mortality rate by 40.6%. The highest percentage of stillbirths was observed with respect to the control group, subjected to combined effects of Decis and T-2 toxin 2.2 times, in groups treated separately decis and T-2 toxin, 1.7 and 2.1 times, respectively. On such indicators as the time of detachment of ears, the term of pubescence, insights, and the eruption of the incisors significant differences in the experimental groups relative to controls were observed. The combined effects of Decis and T-2 toxin after a single and repeated administration is characterized by more severe clinical, hematological, biochemical and pathological changes than when the effects of toxicants. Accompanied by a decrease in the number of leukocytes, erythrocytes and hemoglobin of 26.3, 27.8 and 33.6%, respectively, decrease in total protein by 19.2%.

Цель наших исследований токсикологическая оценка сочетанного воздействия дециса и Т-2 токсина на организм животных. Среднесмертельная их доза для белых крыс при раздельном воздействии составляет 45,8 и 3,0 мг/кг соответственно, при сочетанном 38,3 и 1,8 мг/кг; для кроликов при раздельном 356,7и 0,54 мг/кг, при сочетанном 290,0 и 0,46 мг/кг, что свидетельствует о взаимоусиливающем действии токсикантов. Коэффициент их кумуляции равен 4,8, что характерно для веществ с умеренной кумуляцией. Сочетанное воздействие дециса и Т-2 токсина на уровне существующих ПДК для каждого из соединений оказывает эмбриотоксическое и тератогенное действие на организм белых крыс: предимплантационная гибель плодов увеличивается относительно контроля на 40,5 %, постимплантационная гибель на 47,1 %, общая эмбриональная смертность на 40.6 %. Доля мертворождений в группе, подвергшейся сочетанному воздействию дециса и Т-2 токсина, была выше, чем в контроле, в 2,2 раза, в группах, получавших раздельно децис и Т-2 токсин, в 1,7 и 2,1 раза соответственно. По таким показателям, как время отлипания ушей, срок опушения, прозрения и прорезывания резцов значительных различий между опытными группами и контрольной не отмечалось. Сочетанное воздействие дециса и Т-2 токсина при однократном и многократном введении характеризуется более тяжёлыми клиническими, гематологическими, биохимическими и патоморфологическими изменениями, чем раздельное действие токсикантов. Оно сопровождается уменьшением количества лейкоцитов, эритроцитов и гемоглобина на 26,3, 27,8 и 33.6 % соответственно, общего белка на 19,2 %.

Keywords

СИНТЕТИЧЕСКИЕ ПИРЕТРОИДЫ, МИКОТОКСИНЫ, ДЕЦИС, Т-2 ТОКСИН

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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