Aging, Endothelial Dysfunction and SIRT1 Activation

We all know that aging is associated with a loss in vascular endothelial function, but what role does the SIRT1 system play in aiding aging-related processes, such as increased superoxide production and oxidant stress? In this podcast Consulting Editor Michael Wolin interviews lead author Lindsey Gano (University of Colorado, Denver) and content expert Zvonimir Katusic (Mayo Clinic) about the work by Gano et al which used the SIRT1 activator SRT1720 in aging mice to study the effects on endothelium-dependent dilation through COX-2 mediated dilation. Did the authors find a reduction in oxidative stress and inflammation? Listen and learn.

Lindsey B. Gano, Anthony John Donato, Hamza M. Pasha, Christopher M. Hearon Jr., Amy L. Sindler, Douglas R. Seals The SIRT1 activator SRT1720 reverses vascular endothelial dysfunction, excessive superoxide production, and inflammation with aging in mice  Am J Physiol Heart Circ Physiol, published December 15, 2014. DOI: 10.1152/ajpheart.00377.2014.