Timothy D Heden, Jordan M Johnson, Patrick J Ferrara, Hiroaki Eshima, Anthony R P Verkerke, Edward J Wentzler, Piyarat Siripoksup, Tara M Narowski, Chanel B Coleman, Chien-Te Lin, Terence E Ryan, Paul T Reidy, Lisandra E de Castro Brás, Courtney M Karner, Charles F Burant, J Alan Maschek, James E Cox, Douglas G Mashek, Gabrielle Kardon, Sihem Boudina, Tonya N Zeczycki, Jared Rutter, Saame Raza Shaikh, Jean E Vance, Micah J Drummond, P Darrell Neufer, Katsuhiko Funai
Exercise capacity is a strong predictor of all-cause mortality. Skeletal muscle mitochondrial respiratory capacity, its biggest contributor, adapts robustly to changes in energy demands induced by contractile activity. While transcriptional regulation of mitochondrial enzymes has been extensively studied, there is limited information on how mitochondrial membrane lipids are regulated. Here, we show that exercise training or muscle disuse alters mitochondrial membrane phospholipids including phosphatidylethanolamine (PE)...
September 2019: Science Advances