These include regulation of mechanisms controlling reactive oxygen species (ROS), which cause macromolecular damage 16,17 , mitochondrial turnover or mitophagy 18 , and the mitochondrial unfolded protein response (UPR mt ), in which mitochondrial damage can be prevented by the removal of aggregated or unfolded proteins 19
NNMT is expressed at high levels in the liver and is also present in adipose tissue, kidney, brain, lung, heart, and skeletal muscle
Semaglutide also reduced peripheral resistance, suggesting a favorable effect on arterial stiffness, a parameter linked to CV outcomes
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This phenomenon makes a strong case for maintaining treatment long-term rather than using tirzepatide as a short-term fix