Enhanced Microvascular Adaptation to Acute Physical Stress and Reduced Oxidative Stress in Male Athletes Who Consumed Chicken Eggs Enriched with n-3 Polyunsaturated Fatty Acids and Antioxidants-Randomized Clinical Trial.

This randomized interventional study aimed to determine the effects of n-3 polyunsaturated fatty acids, selenium, vitamin E, and lutein supplementation in the form of enriched chicken egg consumption on microvascular endothelium-dependent vasodilation, oxidative stress, and microvascular response to an acute strenuous training session (ASTS) in competitive athletes. Thirty-one male athletes were assigned to a control (n = 17) or a Nutri4 group (n = 14) who consumed three regular or enriched chicken eggs per day, respectively, for 3 weeks. Significantly enhanced endothelium-dependent responses to vascular occlusion (PORH) and iontophoresis of acetylcholine (AChID) were observed in the Nutri4 group but not in the control group after egg consumption. Formation of peroxynitrite and hydrogen peroxide in peripheral blood mononuclear cells, as well as serum concentration of 8-iso prostaglandin F2α, decreased in the Nutri4 group while remaining unchanged in controls. PORH and AChID were reduced post-ASTS compared with pre-ASTS, both before and after the diets, in both groups. However, the range of PORH responsiveness to ASTS (ΔPORH) increased after consumption of enriched eggs. These results suggest that consumption of enriched chicken eggs has a beneficial effect on microvascular endothelium-dependent vasodilation and the reduction of oxidative stress levels in competitive athletes. Also, microvascular adaptation to the ASTS was improved after consumption of Nutri4 eggs.

The effect of n-3 polyunsaturated fatty acids-enriched hen eggs consumption on IgG and total plasma protein N-glycosylation in healthy individuals and cardiovascular patients.

This study determined the effect of n-3 polyunsaturated fatty acids (n-3 PUFAs)-enriched hen eggs consumption on immunoglobulin G (IgG) and total plasma protein N-glycan profiles and inflammatory biomarkers level in healthy individuals (N = 33) and cardiovascular (CV) patients (N = 21). Subjects were divided to Control-Healthy and Control-CV subgroups [consumed three regular hens' eggs/daily (249 mg n-3 PUFAs/day)], and n-3 PUFAs-Healthy and n-3 PUFAs-CV subgroups [consumed three n-3 PUFAs-enriched hen eggs/daily (1053 mg n-3 PUFAs/day)] for 3 weeks. Serum-free fatty acids profile and high-sensitivity C-reactive protein, interleukin 6 and 10 (IL-6, IL-10) and tumor necrosis factor alpha were measured. Total plasma protein and IgG N-glycome have been profiled before and after dietary protocols. Serum n-3 PUFAs concentration significantly increased following n-3 PUFAs hen eggs consumption in both n-3 PUFAs-Healthy and n-3 PUFAs-CV. IL-10 significantly increased in both Healthy subgroups, whereas no change occurred in CV subgroups. Derived IgG N-glycan traits: bisecting N-acetylglucosamine (B) significantly decreased in n-3 PUFAs-Healthy, whereas agalactosylation (G0) and core fucosylation (CF) significantly increased in Control-Healthy. Derived total plasma protein N-glycan traits: high branching glycans, trigalactosylation, tetragalactosylation, trisialylation, tetrasialylation and antennary fucosylation significantly decreased, whereas G0, monogalactosylation (G1), neutral glycans (S0), B, CF and oligomannose structures significantly increased in n-3 PUFAs-CV. Digalactosylation significantly decreased, and G0, G1, S0, disialylation, B and CF significantly increased in Control-CV. n-3 PUFAs consumption alters IgG N-glycan traits and IL-10 in healthy individuals, and total plasma protein N-glycan traits in CV patients, by shifting them toward less inflammatory N-glycosylation profile.

From Myocardial Infarction with Non-Obstructive Coronary Arteries (MINOCA) to Chronic Coronary Syndrome: Clinical Diagnostic Use of Laser Doppler Flowmetry in Coronary Microvascular Dysfunction.

BACKGROUND MINOCA is defined as myocardial infarction with non-obstructive coronary changes, or the absence of atherosclerotic coronary plaques (less than 50%). The long-term prognosis of these patients is as poor as for those with obstructive coronary disease. Possibilities for treatment follow-up and improvement are still lacking. This case report provides a retrospective analysis of a case of MINOCA that transformed into chronic coronary syndrome (CCS). CASE REPORT A 40-year-old patient had acute coronary syndrome without atherosclerotic changes in the great epicardial coronary arteries, but with slow coronary flow in the left anterior descending coronary artery in 2011 and 2014. Two-dimensional transthoracic echocardiography showed no echocardiographic impairment of myocardial contractility. The comorbidities were visceral obesity, dyslipidemia, and smoking history. After the addition of a calcium channel blocker and trimetazidine to standard therapy, there were no anginal symptoms. In 2019, during a regular health check-up, contrast echocardiography showed a slow rinse of contrast in the apical and medial/distal anterolateral segment with reduced longitudinal strain in the same myocardial segments. Laser Doppler flowmetry (LDF) showed impaired microcirculatory function in the skin microcirculation. CONCLUSIONS This case report highlights: 1) use of the non-invasive, inexpensive, and easy-to-use LDF technique for microcirculatory dysfunction confirmation; 2) follow-up of MINOCA to CCS transition; 3) visceral obesity as a risk factor for MINOCA and CCS; and 4) the role of trimetazidine in CCS.