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Castelein 2014 Exp Gerontol - Revision history
2024-03-29T06:30:05Z
Revision history for this page on the wiki
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https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=145104&oldid=prev
Beno Marija at 15:12, 9 November 2017
2017-11-09T15:12:48Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:12, 9 November 2017</td>
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Beno Marija
https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=123276&oldid=prev
Beno Marija at 13:51, 7 November 2016
2016-11-07T13:51:44Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:51, 7 November 2016</td>
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Beno Marija
https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=84027&oldid=prev
Bader Helga at 08:42, 9 March 2015
2015-03-09T08:42:01Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 08:42, 9 March 2015</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=Culturing ''C. elegans'' in axenic medium leads to a twofold increase in lifespan and considering the similar phenotypical traits with dietary restricted animals, it is referred to as axenic dietary restriction (ADR). The free radical theory of aging has suggested a pivotal role for mitochondria in the aging process and previous findings established that culture in axenic medium increases metabolic rate. We asked whether axenic culture induces changes in mitochondrial functionality of ''C. elegans''. We show that ADR induces increased electron transport chain (ETC.) capacity, enhanced coupling efficiency and reduced leakiness of the mitochondria of young adult worms but not a decrease of ROS production capacity and ''in vivo'' H2O2 levels. The age-dependent increase in leak respiration and decrease in coupling efficiency is repressed under ADR conditions. Although ADR mitochondria experience a decrease in ETC. capacity with age, they succeed to maintain highly efficient and well-coupled function compared to fully fed controls. This might be mediated by combination of a limited increase in supercomplex abundance and decreased individual CIV abundance, facilitating electron transport and ultimately leading to increased mitochondrial efficiency.</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=Culturing ''C. elegans'' in axenic medium leads to a twofold increase in lifespan and considering the similar phenotypical traits with dietary restricted animals, it is referred to as axenic dietary restriction (ADR). The free radical theory of aging has suggested a pivotal role for mitochondria in the aging process and previous findings established that culture in axenic medium increases metabolic rate. We asked whether axenic culture induces changes in mitochondrial functionality of ''C. elegans''. We show that ADR induces increased electron transport chain (ETC.) capacity, enhanced coupling efficiency and reduced leakiness of the mitochondria of young adult worms but not a decrease of ROS production capacity and ''in vivo'' H2O2 levels. The age-dependent increase in leak respiration and decrease in coupling efficiency is repressed under ADR conditions. Although ADR mitochondria experience a decrease in ETC. capacity with age, they succeed to maintain highly efficient and well-coupled function compared to fully fed controls. This might be mediated by combination of a limited increase in supercomplex abundance and decreased individual CIV abundance, facilitating electron transport and ultimately leading to increased mitochondrial efficiency.</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>|keywords=Caenorhabditis elegans, Bioenergetics, Mitochondria, Axenic, Dietary restricton, ROS</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>|keywords=<ins style="font-weight: bold; text-decoration: none;">''</ins>Caenorhabditis elegans<ins style="font-weight: bold; text-decoration: none;">''</ins>, Bioenergetics, Mitochondria, Axenic, Dietary restricton, ROS</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>|mipnetlab=BE Gent Braeckman BP</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>|mipnetlab=BE Gent Braeckman BP</div></td></tr>
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</table>
Bader Helga
https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=84026&oldid=prev
Bader Helga at 08:41, 9 March 2015
2015-03-09T08:41:30Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 08:41, 9 March 2015</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>|year=2014</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=2014</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=Exp Gerontol</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=Exp Gerontol</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>|abstract=Culturing C. elegans in axenic medium leads to a twofold increase in lifespan and considering the similar phenotypical traits with dietary restricted animals, it is referred to as axenic dietary restriction (ADR). The free radical theory of aging has suggested a pivotal role for mitochondria in the aging process and previous findings established that culture in axenic medium increases metabolic rate. We asked whether axenic culture induces changes in mitochondrial functionality of C. elegans. We show that ADR induces increased electron transport chain (ETC.) capacity, enhanced coupling efficiency and reduced leakiness of the mitochondria of young adult worms but not a decrease of ROS production capacity and in vivo H2O2 levels. The age-dependent increase in leak respiration and decrease in coupling efficiency is repressed under ADR conditions. Although ADR mitochondria experience a decrease in ETC. capacity with age, they succeed to maintain highly efficient and well-coupled function compared to fully fed controls. This might be mediated by combination of a limited increase in supercomplex abundance and decreased individual CIV abundance, facilitating electron transport and ultimately leading to increased mitochondrial efficiency.</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>|abstract=Culturing <ins style="font-weight: bold; text-decoration: none;">''</ins>C. elegans<ins style="font-weight: bold; text-decoration: none;">'' </ins>in axenic medium leads to a twofold increase in lifespan and considering the similar phenotypical traits with dietary restricted animals, it is referred to as axenic dietary restriction (ADR). The free radical theory of aging has suggested a pivotal role for mitochondria in the aging process and previous findings established that culture in axenic medium increases metabolic rate. We asked whether axenic culture induces changes in mitochondrial functionality of <ins style="font-weight: bold; text-decoration: none;">''</ins>C. elegans<ins style="font-weight: bold; text-decoration: none;">''</ins>. We show that ADR induces increased electron transport chain (ETC.) capacity, enhanced coupling efficiency and reduced leakiness of the mitochondria of young adult worms but not a decrease of ROS production capacity and <ins style="font-weight: bold; text-decoration: none;">''</ins>in vivo<ins style="font-weight: bold; text-decoration: none;">'' </ins>H2O2 levels. The age-dependent increase in leak respiration and decrease in coupling efficiency is repressed under ADR conditions. Although ADR mitochondria experience a decrease in ETC. capacity with age, they succeed to maintain highly efficient and well-coupled function compared to fully fed controls. This might be mediated by combination of a limited increase in supercomplex abundance and decreased individual CIV abundance, facilitating electron transport and ultimately leading to increased mitochondrial efficiency.</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=Caenorhabditis elegans, Bioenergetics, Mitochondria, Axenic, Dietary restricton, ROS</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=Caenorhabditis elegans, Bioenergetics, Mitochondria, Axenic, Dietary restricton, ROS</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>|mipnetlab=BE Gent Braeckman BP</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>|mipnetlab=BE Gent Braeckman BP</div></td></tr>
</table>
Bader Helga
https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=82758&oldid=prev
Kandolf Georg at 15:46, 26 February 2015
2015-02-26T15:46:12Z
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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=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured ''Caenorhabditis elegans''. Exp Gerontol <del style="font-weight: bold; text-decoration: none;">[Epub ahead of print]</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>|title=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured ''Caenorhabditis elegans''. Exp Gerontol <ins style="font-weight: bold; text-decoration: none;">56:26-36</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>|info=[http://www.ncbi.nlm.nih.gov/pubmed/24556280 PMID: 24556280]</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>|info=[http://www.ncbi.nlm.nih.gov/pubmed/24556280 PMID:24556280]</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>|authors=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP</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>|authors=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP</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=2014</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=2014</div></td></tr>
</table>
Kandolf Georg
https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=79472&oldid=prev
Marte Verena at 13:43, 10 February 2015
2015-02-10T13:43:36Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:43, 10 February 2015</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>|organism=Caenorhabditis elegans</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>|organism=Caenorhabditis elegans</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>|preparations=Isolated <del style="font-weight: bold; text-decoration: none;">Mitochondria</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>|preparations=Isolated <ins style="font-weight: bold; text-decoration: none;">mitochondria</ins></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>|substratestates=CI, CII, CI<del style="font-weight: bold; text-decoration: none;">+</del>II</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>|substratestates=CI, CII, CI<ins style="font-weight: bold; text-decoration: none;">&</ins>II</div></td></tr>
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</table>
Marte Verena
https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=72106&oldid=prev
Gnaiger Erich at 05:10, 31 August 2014
2014-08-31T05:10:19Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 05:10, 31 August 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>{{Publication</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>{{Publication</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>|title=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured Caenorhabditis elegans. Exp Gerontol [Epub ahead of print].</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=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured <ins style="font-weight: bold; text-decoration: none;">''</ins>Caenorhabditis elegans<ins style="font-weight: bold; text-decoration: none;">''</ins>. Exp Gerontol [Epub ahead of print].</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/24556280 PMID: 24556280]</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/24556280 PMID: 24556280]</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>|authors=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP</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>|authors=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP</div></td></tr>
</table>
Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=62793&oldid=prev
Gnaiger Erich at 07:12, 10 June 2014
2014-06-10T07:12:48Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 07:12, 10 June 2014</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</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>{{Publication</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>{{Publication</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>|title=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured Caenorhabditis elegans. Exp Gerontol [Epub ahead of print]. </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=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured Caenorhabditis elegans. Exp Gerontol [Epub ahead of print].</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/24556280 PMID: 24556280]</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/24556280 PMID: 24556280]</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>|authors=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP</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>|authors=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP</div></td></tr>
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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=Culturing C. elegans in axenic medium leads to a twofold increase in lifespan and considering the similar phenotypical traits with dietary restricted animals, it is referred to as axenic dietary restriction (ADR). The free radical theory of aging has suggested a pivotal role for mitochondria in the aging process and previous findings established that culture in axenic medium increases metabolic rate. We asked whether axenic culture induces changes in mitochondrial functionality of C. elegans. We show that ADR induces increased electron transport chain (ETC.) capacity, enhanced coupling efficiency and reduced leakiness of the mitochondria of young adult worms but not a decrease of ROS production capacity and in vivo H2O2 levels. The age-dependent increase in leak respiration and decrease in coupling efficiency is repressed under ADR conditions. Although ADR mitochondria experience a decrease in ETC. capacity with age, they succeed to maintain highly efficient and well-coupled function compared to fully fed controls. This might be mediated by combination of a limited increase in supercomplex abundance and decreased individual CIV abundance, facilitating electron transport and ultimately leading to increased mitochondrial efficiency.</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=Culturing C. elegans in axenic medium leads to a twofold increase in lifespan and considering the similar phenotypical traits with dietary restricted animals, it is referred to as axenic dietary restriction (ADR). The free radical theory of aging has suggested a pivotal role for mitochondria in the aging process and previous findings established that culture in axenic medium increases metabolic rate. We asked whether axenic culture induces changes in mitochondrial functionality of C. elegans. We show that ADR induces increased electron transport chain (ETC.) capacity, enhanced coupling efficiency and reduced leakiness of the mitochondria of young adult worms but not a decrease of ROS production capacity and in vivo H2O2 levels. The age-dependent increase in leak respiration and decrease in coupling efficiency is repressed under ADR conditions. Although ADR mitochondria experience a decrease in ETC. capacity with age, they succeed to maintain highly efficient and well-coupled function compared to fully fed controls. This might be mediated by combination of a limited increase in supercomplex abundance and decreased individual CIV abundance, facilitating electron transport and ultimately leading to increased mitochondrial efficiency.</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=Caenorhabditis elegans, Bioenergetics, Mitochondria, Axenic, Dietary restricton, ROS</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=Caenorhabditis elegans, Bioenergetics, Mitochondria, Axenic, Dietary restricton, ROS</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;">|mipnetlab=BE Gent Braeckman BP</ins></div></td></tr>
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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>{{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>
Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Castelein_2014_Exp_Gerontol&diff=56917&oldid=prev
Krumschnabel Gerhard: Created page with "{{Publication |title=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured Caenorhabdit..."
2014-02-25T08:35:20Z
<p>Created page with "{{Publication |title=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured Caenorhabdit..."</p>
<p><b>New page</b></p><div>{{Publication<br />
|title=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP (2014) Mitochondrial efficiency is increased in axenically cultured Caenorhabditis elegans. Exp Gerontol [Epub ahead of print]. <br />
|info=[http://www.ncbi.nlm.nih.gov/pubmed/24556280 PMID: 24556280]<br />
|authors=Castelein N, Muschol M, Dhondt I, Cai H, De Vos WH, Dencher NA, Braeckman BP<br />
|year=2014<br />
|journal=Exp Gerontol<br />
|abstract=Culturing C. elegans in axenic medium leads to a twofold increase in lifespan and considering the similar phenotypical traits with dietary restricted animals, it is referred to as axenic dietary restriction (ADR). The free radical theory of aging has suggested a pivotal role for mitochondria in the aging process and previous findings established that culture in axenic medium increases metabolic rate. We asked whether axenic culture induces changes in mitochondrial functionality of C. elegans. We show that ADR induces increased electron transport chain (ETC.) capacity, enhanced coupling efficiency and reduced leakiness of the mitochondria of young adult worms but not a decrease of ROS production capacity and in vivo H2O2 levels. The age-dependent increase in leak respiration and decrease in coupling efficiency is repressed under ADR conditions. Although ADR mitochondria experience a decrease in ETC. capacity with age, they succeed to maintain highly efficient and well-coupled function compared to fully fed controls. This might be mediated by combination of a limited increase in supercomplex abundance and decreased individual CIV abundance, facilitating electron transport and ultimately leading to increased mitochondrial efficiency.<br />
|keywords=Caenorhabditis elegans, Bioenergetics, Mitochondria, Axenic, Dietary restricton, ROS<br />
}}<br />
{{Labeling<br />
|area=Respiration<br />
|organism=Caenorhabditis elegans<br />
|preparations=Isolated Mitochondria<br />
|diseases=Aging; senescence<br />
|couplingstates=LEAK, OXPHOS, ETS<br />
|substratestates=CI, CII, CI+II<br />
|instruments=Oxygraph-2k<br />
}}</div>
Krumschnabel Gerhard