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Changes of internal organs after percutaneous exposure to sulfur mustard
Šulová, Veronika ; Červený, Lukáš (advisor) ; Vokřál, Ivan (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology & Toxicology Student: Veronika Šulová Supervisor: doc. PharmDr. Lukáš Červený, Ph.D. External supervisor: pplk. doc. MUDr. Jaroslav Pejchal, Ph.D. et Ph.D. Title of diploma thesis: Changes of internal organs after percutaneous exposure to sulfur mustard Sulfur mustard is a chemical warfare agent belonging to the group of blistering agents. The theoretical section of the thesis is mainly focused on the description of acute toxic effects, the mechanism of action, and deals with the current possibilities of poisoning therapy. The experimental section is focused on monitoring the effect of sulfur mustard poisoning in the liver, lung, and kidney of female C57BL/6J mice after the percutaneous administration. This work aimed to evaluate markers of oxidative stress and histopathological changes of the selected organs at 3, 5, and 7 days after the poisoning. Ferric reducing antioxidant power (FRAP) and thiobarbituric acid reactive substances (TBARS) methods were used to determine markers of oxidative stress. Histopathological changes were evaluated microscopically using the hematoxylin-eosin staining method. The airness of the lung parenchyma was also assessed by computer image analysis. First, the LD50 of sulfur mustard was...
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Induction of oxidative stress in skin keratinocyte cells
Martínková, Nikola ; Jirkovská, Anna (advisor) ; Hradiská Breiterová, Kateřina (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Student: Nikola Martínková Supervisor: PharmDr. Anna Jirkovská, Ph.D. Consultant: Mgr. Petr Jošt, Ph.D. Title of diploma thesis: Induction of oxidative stress in skin keratinocyte cells Keratinocytes are part of the epidermis and represent the majority of cells in the upper layer of human skin. When these cells are damaged by mutagenic substances, changes in the composition of the genetic material may occur, and even cell death may occur. Such substances that induce changes in DNA and have mutagenic potential include the chemical warfare agent sulfur mustard. The purpose of this study was to compare the HaCaT keratinocyte cell line with the experimentally derived 3HSM4 cell line in response to hydrogen peroxide-induced oxidative stress. The 3HSM4 cells were prepared by selecting resistant clones of HaCaT cells that were repeatedly exposed to the cytotoxic effects of sulfur mustard. The results of the comparison show that 3HSM4 cells proved to be more resistant to hydrogen peroxide. When glutathione (GSH) synthesis was blocked in both cell types, the cytotoxic effect of hydrogen peroxide was the same. Although 3HSM4 cells were shown to be more resistant in terms of cytotoxicity, they were found to have much...
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Changes of internal organs after percutaneous exposure to sulfur mustard
Šulová, Veronika ; Červený, Lukáš (advisor) ; Vokřál, Ivan (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology & Toxicology Student: Veronika Šulová Supervisor: doc. PharmDr. Lukáš Červený, Ph.D. External supervisor: pplk. doc. MUDr. Jaroslav Pejchal, Ph.D. et Ph.D. Title of diploma thesis: Changes of internal organs after percutaneous exposure to sulfur mustard Sulfur mustard is a chemical warfare agent belonging to the group of blistering agents. The theoretical section of the thesis is mainly focused on the description of acute toxic effects, the mechanism of action, and deals with the current possibilities of poisoning therapy. The experimental section is focused on monitoring the effect of sulfur mustard poisoning in the liver, lung, and kidney of female C57BL/6J mice after the percutaneous administration. This work aimed to evaluate markers of oxidative stress and histopathological changes of the selected organs at 3, 5, and 7 days after the poisoning. Ferric reducing antioxidant power (FRAP) and thiobarbituric acid reactive substances (TBARS) methods were used to determine markers of oxidative stress. Histopathological changes were evaluated microscopically using the hematoxylin-eosin staining method. The airness of the lung parenchyma was also assessed by computer image analysis. First, the LD50 of sulfur mustard was...
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