In summary, increased PTSD susceptibility or the presence of PTSD is associatedwith stress-induced vulnerability of blood vessels to damage and dysfunction.Increased total cholesterol, dyslipidemia, arterial stiffness, high bloodpressure, and impaired endothelial function, along with reduced eNOS anddopamine, may serve as important markers and predictors of PTSD-related vasculardamage. Here, NOS3 is linked to post-traumatic stress disorder.