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PQQ AND mitochondria biogenesis

Ashish Kumar Singh, Sumeet Kumar Pandey, Gourav Saha, Naresh Kumar Gattupalli
BACKGROUND: Ageing involves oxidative stress mediated by Reactive Oxygen Species (ROS) and mitochondrial dysfunction. The present work demonstrates the protective effect of PQQ producing EcN against rotenone induced mitochondrial oxidative stress and consequence of mitochondrial and cellular dysfunction in naturally ageing rat model. PQQ is a potent antioxidant molecule also known to stimulate mitochondrial biogenesis and function in mammals. METHODS: Firstly, adult rats (16-18 weeks old) were treated with rotenone (2...
June 2015: Experimental Gerontology
Winyoo Chowanadisai, Kathryn A Bauerly, Eskouhie Tchaparian, Alice Wong, Gino A Cortopassi, Robert B Rucker
Bioactive compounds reported to stimulate mitochondrial biogenesis are linked to many health benefits such increased longevity, improved energy utilization, and protection from reactive oxygen species. Previously studies have shown that mice and rats fed diets lacking in pyrroloquinoline quinone (PQQ) have reduced mitochondrial content. Therefore, we hypothesized that PQQ can induce mitochondrial biogenesis in mouse hepatocytes. Exposure of mouse Hepa1-6 cells to 10-30 microm PQQ for 24-48 h resulted in increased citrate synthase and cytochrome c oxidase activity, Mitotracker staining, mitochondrial DNA content, and cellular oxygen respiration...
January 1, 2010: Journal of Biological Chemistry
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