https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&feed=atom&action=history
Stankova 2010 Toxicol In Vitro - Revision history
2024-03-29T07:44:28Z
Revision history for this page on the wiki
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https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=198151&oldid=prev
Gnaiger Erich at 08:58, 18 March 2020
2020-03-18T08:58:42Z
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Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=124172&oldid=prev
Beno Marija at 08:19, 8 November 2016
2016-11-08T08:19:42Z
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Beno Marija
https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=81347&oldid=prev
Bader Helga at 14:06, 17 February 2015
2015-02-17T14:06:49Z
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Bader Helga
https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=81346&oldid=prev
Bader Helga at 14:06, 17 February 2015
2015-02-17T14:06:40Z
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|title=Staňková P, Kučera O, Lotková H, Roušar T, Endlicher R, Cervinková Z (2010) The toxic effect of thioacetamide on rat liver ''in vitro''. Toxicol In Vitro 24: 2097-2103.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|title=Staňková P, Kučera O, Lotková H, Roušar T, Endlicher R, Cervinková Z (2010) The toxic effect of thioacetamide on rat liver ''in vitro''. Toxicol In Vitro 24:2097-2103.</div></td></tr>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|enzymes=Complex I, Complex II; <del style="font-weight: bold; text-decoration: none;">Succinate Dehydrogenase</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|enzymes=Complex I, Complex II;<ins style="font-weight: bold; text-decoration: none;">succinate dehydrogenase</ins></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|injuries=RONS<del style="font-weight: bold; text-decoration: none;">; Oxidative Stress</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|injuries=<ins style="font-weight: bold; text-decoration: none;">Oxidative stress;</ins>RONS</div></td></tr>
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Bader Helga
https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=75867&oldid=prev
Fleischmann Sandra at 09:17, 28 November 2014
2014-11-28T09:17:15Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:17, 28 November 2014</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|abstract=Thioacetamide (TAA) is a hepatotoxin frequently used for experimental purposes which produces centrilobular necrosis after a single dose administration. In spite of the fact that oxidative stress seems to play a very important role in the mechanism of TAA-induced injury, the effect of TAA on hepatocytes in primary culture with respect to the influence on mitochondria has yet to be verified. Hepatocytes were incubated for 24h in a medium containing TAA (0-70 mmol/l). Glutathione content (GSH/GSSG), reactive oxygen species and malondialdehyde formation were assessed as markers of cell redox state. Toxicity was determined by lactate dehydrogenase leakage and WST-1 assay. The functional capacity of hepatocytes was evaluated from albumin and urea production. Mitochondrial metabolism was assessed by measuring mitochondrial membrane potential and oxygen consumption. Our results show that a profound decrease in the GSH level in hepatocytes precedes a sharp rise in endogenous ROS production. ROS production correlates with an increase in lipoperoxidation. Mitochondria are affected by TAA secondarily as a consequence of oxidative stress. Oxidation of the NADH-dependent substrates of respiratory Complex I is significantly more sensitive to the toxic action of TAA than oxidation of the flavoprotein-dependent substrate of Complex II. Mitochondria can also maintain their membrane potential better when they utilize succinate as a respiratory substrate. It appears that GSH should be depleted below a certain critical level in order to cause a marked increase in lipid peroxidation. Mitochondrial injury can then occur and cell death develops.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|abstract=Thioacetamide (TAA) is a hepatotoxin frequently used for experimental purposes which produces centrilobular necrosis after a single dose administration. In spite of the fact that oxidative stress seems to play a very important role in the mechanism of TAA-induced injury, the effect of TAA on hepatocytes in primary culture with respect to the influence on mitochondria has yet to be verified. Hepatocytes were incubated for 24h in a medium containing TAA (0-70 mmol/l). Glutathione content (GSH/GSSG), reactive oxygen species and malondialdehyde formation were assessed as markers of cell redox state. Toxicity was determined by lactate dehydrogenase leakage and WST-1 assay. The functional capacity of hepatocytes was evaluated from albumin and urea production. Mitochondrial metabolism was assessed by measuring mitochondrial membrane potential and oxygen consumption. Our results show that a profound decrease in the GSH level in hepatocytes precedes a sharp rise in endogenous ROS production. ROS production correlates with an increase in lipoperoxidation. Mitochondria are affected by TAA secondarily as a consequence of oxidative stress. Oxidation of the NADH-dependent substrates of respiratory Complex I is significantly more sensitive to the toxic action of TAA than oxidation of the flavoprotein-dependent substrate of Complex II. Mitochondria can also maintain their membrane potential better when they utilize succinate as a respiratory substrate. It appears that GSH should be depleted below a certain critical level in order to cause a marked increase in lipid peroxidation. Mitochondrial injury can then occur and cell death develops.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|keywords=Hepatotoxicity</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|keywords=Hepatotoxicity</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|mipnetlab=CZ Hradec Kralove Cervinkova Z,</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|mipnetlab=CZ Hradec Kralove Cervinkova Z, <ins style="font-weight: bold; text-decoration: none;">CZ Pardubice Rousar T</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Labeling</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Labeling</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">|instruments=Oxygraph-2k</del></div></td><td colspan="2"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">|injuries=RONS; Oxidative Stress</del></div></td><td colspan="2"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|tissues=Liver</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|tissues=Liver</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|preparations=Permeabilized cells</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|preparations=Permeabilized cells</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">|substratestates=CI, CII</del></div></td><td colspan="2"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|enzymes=Complex I, Complex II; Succinate Dehydrogenase</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|enzymes=Complex I, Complex II; Succinate Dehydrogenase</div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|injuries=RONS; Oxidative Stress</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|topics=mt-Membrane potential, Fatty Acid</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|topics=mt-Membrane potential, Fatty Acid</div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|substratestates=CI, CII</ins></div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|instruments=Oxygraph-2k</ins></div></td></tr>
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Fleischmann Sandra
https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=46915&oldid=prev
Gnaiger Erich at 14:51, 6 August 2013
2013-08-06T14:51:32Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:51, 6 August 2013</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|enzymes=Complex I, Complex II; Succinate Dehydrogenase</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|enzymes=Complex I, Complex II; Succinate Dehydrogenase</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|topics=Membrane <del style="font-weight: bold; text-decoration: none;">Potential</del>, Fatty Acid</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|topics=<ins style="font-weight: bold; text-decoration: none;">mt-</ins>Membrane <ins style="font-weight: bold; text-decoration: none;">potential</ins>, Fatty Acid</div></td></tr>
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Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=42937&oldid=prev
Meissner Barbara at 16:03, 25 February 2013
2013-02-25T16:03:37Z
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|injuries=RONS; Oxidative Stress</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|injuries=RONS; Oxidative Stress</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|tissues=<del style="font-weight: bold; text-decoration: none;">Hepatocyte; </del>Liver</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|tissues=Liver</div></td></tr>
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Meissner Barbara
https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=38226&oldid=prev
Meissner Barbara at 12:15, 17 December 2012
2012-12-17T12:15:27Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:15, 17 December 2012</td>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|title=Staňková P, Kučera O, Lotková H, Roušar T, Endlicher R, Cervinková Z (2010) The toxic effect of thioacetamide on rat liver ''in vitro''. Toxicol In Vitro 24: 2097-2103. </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|title=Staňková P, Kučera O, Lotková H, Roušar T, Endlicher R, Cervinková Z (2010) The toxic effect of thioacetamide on rat liver ''in vitro''. Toxicol In Vitro 24: 2097-2103.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|info=[http://www.ncbi.nlm.nih.gov/pubmed/20600801 PMID: 20600801]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|info=[http://www.ncbi.nlm.nih.gov/pubmed/20600801 PMID: 20600801]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|authors=<del style="font-weight: bold; text-decoration: none;">Staňková </del>P, <del style="font-weight: bold; text-decoration: none;">Kučera </del>O, <del style="font-weight: bold; text-decoration: none;">Lotková </del>H, <del style="font-weight: bold; text-decoration: none;">Roušar </del>T, Endlicher R, <del style="font-weight: bold; text-decoration: none;">Cervinková </del>Z</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|authors=<ins style="font-weight: bold; text-decoration: none;">Stankova </ins>P, <ins style="font-weight: bold; text-decoration: none;">Kucera </ins>O, <ins style="font-weight: bold; text-decoration: none;">Lotkova </ins>H, <ins style="font-weight: bold; text-decoration: none;">Rousar </ins>T, Endlicher R, <ins style="font-weight: bold; text-decoration: none;">Cervinkova </ins>Z</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|year=2010</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|year=2010</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|journal=Toxicol In Vitro</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|journal=Toxicol In Vitro</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|abstract=Thioacetamide (TAA) is a hepatotoxin frequently used for experimental purposes which produces centrilobular necrosis after a single dose administration. In spite of the fact that oxidative stress seems to play a very important role in the mechanism of TAA-induced injury, the effect of TAA on hepatocytes in primary culture with respect to the influence on mitochondria has yet to be verified. Hepatocytes were incubated for 24h in a medium containing TAA (0-70 mmol/l). Glutathione content (GSH/GSSG), reactive oxygen species and malondialdehyde formation were assessed as markers of cell redox state. Toxicity was determined by lactate dehydrogenase leakage and WST-1 assay. The functional capacity of hepatocytes was evaluated from albumin and urea production. Mitochondrial metabolism was assessed by measuring mitochondrial membrane potential and oxygen consumption. Our results show that a profound decrease in the GSH level in hepatocytes precedes a sharp rise in endogenous ROS production. ROS production correlates with an increase in lipoperoxidation. Mitochondria are affected by TAA secondarily as a consequence of oxidative stress. Oxidation of the NADH-dependent substrates of respiratory Complex I is significantly more sensitive to the toxic action of TAA than oxidation of the flavoprotein-dependent substrate of Complex II. Mitochondria can also maintain their membrane potential better when they utilize succinate as a respiratory substrate. It appears that GSH should be depleted below a certain critical level in order to cause a marked increase in lipid peroxidation. Mitochondrial injury can then occur and cell death develops.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|abstract=Thioacetamide (TAA) is a hepatotoxin frequently used for experimental purposes which produces centrilobular necrosis after a single dose administration. In spite of the fact that oxidative stress seems to play a very important role in the mechanism of TAA-induced injury, the effect of TAA on hepatocytes in primary culture with respect to the influence on mitochondria has yet to be verified. Hepatocytes were incubated for 24h in a medium containing TAA (0-70 mmol/l). Glutathione content (GSH/GSSG), reactive oxygen species and malondialdehyde formation were assessed as markers of cell redox state. Toxicity was determined by lactate dehydrogenase leakage and WST-1 assay. The functional capacity of hepatocytes was evaluated from albumin and urea production. Mitochondrial metabolism was assessed by measuring mitochondrial membrane potential and oxygen consumption. Our results show that a profound decrease in the GSH level in hepatocytes precedes a sharp rise in endogenous ROS production. ROS production correlates with an increase in lipoperoxidation. Mitochondria are affected by TAA secondarily as a consequence of oxidative stress. Oxidation of the NADH-dependent substrates of respiratory Complex I is significantly more sensitive to the toxic action of TAA than oxidation of the flavoprotein-dependent substrate of Complex II. Mitochondria can also maintain their membrane potential better when they utilize succinate as a respiratory substrate. It appears that GSH should be depleted below a certain critical level in order to cause a marked increase in lipid peroxidation. Mitochondrial injury can then occur and cell death develops.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|keywords=Hepatotoxicity</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|keywords=Hepatotoxicity</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|mipnetlab=CZ Hradec Kralove Cervinkova Z, </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|mipnetlab=CZ Hradec Kralove Cervinkova Z,</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Labeling</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Labeling</div></td></tr>
</table>
Meissner Barbara
https://wiki.oroboros.at/index.php?title=Stankova_2010_Toxicol_In_Vitro&diff=38225&oldid=prev
Meissner Barbara: Created page with "{{Publication |title=Staňková P, Kučera O, Lotková H, Roušar T, Endlicher R, Cervinková Z (2010) The toxic effect of thioacetamide on rat liver ''in vitro''. Toxicol In Vit..."
2012-12-17T12:13:44Z
<p>Created page with "{{Publication |title=Staňková P, Kučera O, Lotková H, Roušar T, Endlicher R, Cervinková Z (2010) The toxic effect of thioacetamide on rat liver ''in vitro''. Toxicol In Vit..."</p>
<p><b>New page</b></p><div>{{Publication<br />
|title=Staňková P, Kučera O, Lotková H, Roušar T, Endlicher R, Cervinková Z (2010) The toxic effect of thioacetamide on rat liver ''in vitro''. Toxicol In Vitro 24: 2097-2103. <br />
|info=[http://www.ncbi.nlm.nih.gov/pubmed/20600801 PMID: 20600801]<br />
|authors=Staňková P, Kučera O, Lotková H, Roušar T, Endlicher R, Cervinková Z<br />
|year=2010<br />
|journal=Toxicol In Vitro<br />
|abstract=Thioacetamide (TAA) is a hepatotoxin frequently used for experimental purposes which produces centrilobular necrosis after a single dose administration. In spite of the fact that oxidative stress seems to play a very important role in the mechanism of TAA-induced injury, the effect of TAA on hepatocytes in primary culture with respect to the influence on mitochondria has yet to be verified. Hepatocytes were incubated for 24h in a medium containing TAA (0-70 mmol/l). Glutathione content (GSH/GSSG), reactive oxygen species and malondialdehyde formation were assessed as markers of cell redox state. Toxicity was determined by lactate dehydrogenase leakage and WST-1 assay. The functional capacity of hepatocytes was evaluated from albumin and urea production. Mitochondrial metabolism was assessed by measuring mitochondrial membrane potential and oxygen consumption. Our results show that a profound decrease in the GSH level in hepatocytes precedes a sharp rise in endogenous ROS production. ROS production correlates with an increase in lipoperoxidation. Mitochondria are affected by TAA secondarily as a consequence of oxidative stress. Oxidation of the NADH-dependent substrates of respiratory Complex I is significantly more sensitive to the toxic action of TAA than oxidation of the flavoprotein-dependent substrate of Complex II. Mitochondria can also maintain their membrane potential better when they utilize succinate as a respiratory substrate. It appears that GSH should be depleted below a certain critical level in order to cause a marked increase in lipid peroxidation. Mitochondrial injury can then occur and cell death develops.<br />
|keywords=Hepatotoxicity<br />
|mipnetlab=CZ Hradec Kralove Cervinkova Z, <br />
}}<br />
{{Labeling<br />
|instruments=Oxygraph-2k<br />
|injuries=RONS; Oxidative Stress<br />
|tissues=Hepatocyte; Liver<br />
|preparations=Permeabilized cells<br />
|substratestates=CI, CII<br />
|enzymes=Complex I, Complex II; Succinate Dehydrogenase<br />
|topics=Membrane Potential, Fatty Acid<br />
}}</div>
Meissner Barbara