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
GLYCOBIOLOGY(2021)
Abstract
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 (249mg n-3 PUFAs/day)], and n-3 PUFAs-Healthy and n-3 PUFAs-CV subgroups [consumed three n-3 PUFAs-enriched hen eggs/daily (1053mg 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.
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Key words
functional food, IgG, n-3 polyunsaturated fatty acids, N-glycome, plasma glycoproteins
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