In this engaging episode, Dr. Olguín delves deep into the intricate connection between cardiac metabolism and heart failure, focusing on the crucial role of the enzyme lysine demethylase 8 (Kdm8). Dr. Olguín's groundbreaking research suggests that Kdm8 ensures the smooth functioning of the mitochondrial gene network by suppressing the gene Tbx15, thereby preventing dilated cardiomyopathy, a condition that can lead to lethal heart failure. Through their work on mice, the research team found that a lack of Kdm8 increases a certain type of protein modification which activates Tbx15, subsequently leading to a drop in target genes within the NAD+ pathway before the onset of dilated cardiomyopathy. Furthermore, the team discovered that NAD+ supplementation could prevent dilated cardiomyopathy in Kdm8-deficient mice. Remarkably, KDM8 was found to be dow ...