Objective: Hypertriglyceridemia or elevated serum triglyceride (TG) is a leading risk factor for developing atherosclerotic cardiovascular diseases.This clinical study was designed to test the potential of polyphenol-rich extract from Rosa rugosa petals (PE) for improving hypertriglyceridemia and other types of dyslipidemia. Methods: An open-label clinical study was conducted on 19 male and female adult subjects with elevated serum TG (120–399 mg/dL), who were intervened the study diet containing (in a daily dose) 200 mg of PE once daily for sss4 weeks.The serum levels of TG and cholesterols were measured at baseline and week-4.The efficacy was evaluated by comparing the measurements at these two timepoints. Results: A significant decrease (P < 0.05) in serum TG, as well as in serum total cholesterol and non HDL-cholesterol, and a marginally significant decrease (P = 0.070) in serum LDL-cholesterol were observed, while serum HDL-cholesterol was virtually not changed.The study diet was well tolerated without any untoward side effect. Conclusions: The PE-containing diet appears to have benefits in improving hypertriglyceridemia and hypercholesterolemia.

Secretory immunoglobulin A (s-IgA) in saliva constitutes the first-line barrier to the entry of pathogens into the body, implying its critical role in mucosal immunity.To examine the effect of a shark liver oil (SLO)-containing diet on salivary s-IgA concentration in healthy male and female adults, 42 subjects were assigned to either placebo or 6 weeks of a 2,400 mg SLO-containing diet (1,500 mg as SLO) and assessed in a randomized, double-blind, placebo-controlled, parallel group trial.Salivary s-IgA concentration significantly increased at week 6 in the SLO group (P = 0.033), but not in the placebo group.Moreover, there was a significant difference between groups in the magnitude of change from baseline to week 6.No intervention-related adverse event or abnormal changes of laboratory test parameters were observed throughout the study period.In conclusion, an SLO-containing diet increases salivary s-IgA in healthy adults.