ET-1 is the main endothelin generated by the endothelium and is the most important endothelin in the cardiovascular system
Improvements in Endothelial Dysfunction Among the most significant outcomes was the improvement in endothelial function, demonstrated by an increase in flow-mediated dilation (FMD) and a reduction in asymmetric dimethylarginine (ADMA), a known endogenous inhibitor of nitric oxide synthase and marker of endothelial dysfunction
"Two concentrations of topical tretinoin (retinoic acid) cause similar improvement of photoaging but different degrees of irritation: a double-blind, vehicle-controlled comparison of 0.1% and 0.025% tretinoin creams." Archives of dermatology 131.9 (1995): 1037-1044
It achieves the highest absorption through the intraoral delivery method
However, long-term treatment with vitamin E has been associated with increases in all-cause mortality and the risk for prostate cancer [25,26,27], suggesting the need to evaluate the efficacy and safety of this agent