Microvascular endothelium function response to n-3 polyunsaturated fatty acids, vitamin e, selenium and lutein enriched functional food in patients with chronic coronary syndrome

Objective: Ischemic heart disease is the leading cause of death at a global level. A healthy lifestyle, and especially a healthy diet, can have the effect of reducing the risk of subsequent cardiovascular events and mortality. The aim of this study was to examine the effect of hen eggs enriched with n-3 polyunsaturated fatty acids (n-3 PUFAs), vitamin E, selenium and lutein consumption on oxidative stress level and microvascular endothelium function in patients with existing chronic coronary syndrome (CCS). Design and method: A total of 30 patients (9 women and 21 men) with existing CCS participated in this study. The participants were divided in two groups; Control group (N = 15) who ate three regular hen eggs per day (n-3 PUFAs 146 mg, vitamin E 0.595 mg, selenium 0.0183 mg, lutein 0.11mg/per egg), and Nutri4 group (N = 15) who ate three enriched hen eggs per day (n-3 PUFAs 432 mg, vitamin E 1.098 mg, selenium 0.0191 mg, lutein 0.616 mg/per egg) for three weeks. Peripheral microvascular reactivity in response to vascular occlusion (PORH), and iontophoresis of acetylcholine (AChID) and sodium nitroprusside (SNPID), as well as serum lipid and fatty acids profile, pro- and anti-inflammatory cytokines level, as well as biomarkers of oxidative stress and antioxidant capacity were measured before and after the respective diet protocol. Results: Consumption of Nutri4 eggs significantly decreased serum triglycerides levels and n6/n3 PUFAs ratio, decreased levels of cytokines IL-17A and TGF-1beta, and improved endothelium-dependent microvascular PORH and AChID, but not endothelium-independent response in patients with CCS. Consumption of both Nutri4 and regular hen eggs did not affect biomarkers of oxidative stress and antioxidant capacity in CCS patients. Conclusions: Consumption of hen eggs enriched with n-3 PUFAs, vitamin E, selenium and lutein for three weeks induced an anti-inflammatory response, a favorable effect on lipid and fatty acids profile, especially on triglycerides levels and n6/n3 PUFAs ratio, as well as an improved endothelium-dependent peripheral microvascular reactivity in patients with CCS.