Endurance exercise prevents high-fat-diet induced heart and mobility premature aging and 2 expression decline in aging .

High-Fat-Diet (HFD)-induced obesity is a major contributor to heart and mobility premature aging and mortality in both and humans. The 2 genes are closely related to aging, but there are few directed reports showing that whether HFD could inhibit the expression 2 genes. Endurance exercise can prevent fat accumulation and reverse HFD-induced cardiac dysfunction. Endurance also delays age-relate functional decline. It is unclear whether lifetime endurance exercise can combat lifetime HFD-induced heart and mobility premature aging, and relieve the harmful HFD-induced influence on the 2 gene and lifespan yet. In this study, flies are fed a HFD and trained from when they are 1 week old until they are 5 weeks old. Then, triacylglycerol levels, climbing index, cardiac function, lifespan, and 2 mRNA expressions are measured. We show that endurance exercise improves climbing capacity, cardiac contraction, and 2 expression, and it reduces body and heart triacylglycerol levels, heart fibrillation, and mortality in both HFD and aging flies. So, lifelong endurance exercise delays HFD-induced accelerated age-related locomotor impairment, cardiac dysfunction, death, and 2 expression decline, and prevents HFD-induced premature aging in .