As a control to the experimental design, timepoint 0 was considered.

Absorption

After overnight fasting, the authorized study staff inserted a plastic cannula in an arm vein of the volunteers in order to minimize discomfort during consecutive blood sampling. A blood sample was collected on time point 0h and then the volunteers consumed 1mL of MO. The dose selection was based on the study of Papada et al. (2017) who administered healthy volunteers with 10g of Mastiha (containing ~10% MO). Afterwards blood samples were collected on time points 0.5h, 1h, 2h, 4h, 6h and 24h after MO intake, and were centrifuged at 3000rpm for 10 minutes at 4◦C for plasma and serum isolation. All samples were stored at -80◦C until further analysis.

Mastiha oil

Harokopio University

Absorption and Bioavailability of Major Monoterpenes in Mastiha Oil; a Kinetic Study in Humans.

The monoterpenes will be identified and quantified in plasma samples applying GC-MS-MS. Data will be presented through study completion in plasma concentration (μg/L).

Andriana C Kaliora

Assistant Professor in Foods and Human Nutrition

Men and women who are assigned to a 6 weeks experimental period where they consume the rich polyphenol berries extract mix.

Men and women who are assigned to a 6 weeks experimental period where they consume a placebo.

Diabetes

Cardiovascular Disease

Men and women are assigned to an uncontrolled nutritional intervention where they have to consume every day one of the beverage. Half of the subjects consume the experimental beverage containing polyphenols from berries extracts, the other half consume a placebo beverage without polyphenols. The polyphenol containing beverage daily supply 1,84 g of a strawberry and cranberry extract. This amount give the equivalent of 333 mg of polyphenols, thus corresponding to a daily consumption of one cup of berries. The placebo beverage is also a fruit taste beverage, but without polyphenols. Both beverage are isocaloric, with same appearance and taste. A 2 weeks stabilisation period precede the 6 weeks experimental period. During these two periods, subjects are advise to maintain their habitual caloric intake and their habitual activity level, and to avoid consumption of particular food with a high polyphenol content.

Uncontrolled nutritional intervention with a supplemental beverage

Placebo

Institute of Nutraceuticals and Functional Foods (INAF), Laval University

Beneficial Effects of a Polyphenol Enriched Beverage on Type 2 Diabetes Prevention and on Cardiovascular Risk Profile of Men and Women With Insulin Resistance.

glucose and insulin concentrations during a 120-min euglycemic-hyperinsulinemic clamp, glucose and insulin concentrations during a 120-min oral glucose tolerance test, insulin sensitivity, c-peptide, C-reactive protein (hs-CRP), interleukin 6 (IL-6), tumor necrosis factor alpha (TNF-alpha) and plasminogen activator inhibitor-1 (PAI-1) levels, triglycerides, total cholesterol, very low density lipoprotein cholesterol (cVLDL), low density lipoprotein cholesterol (cLDL), high density lipoprotein cholesterol (cHDL), apolipoprotein A-1 and B, oxidized-LDL, glucose disposition rate (GDR), insulin sensitivity measure (MI), beta-cells function

anthropometric measurements (body mass index, waist and hip circumferences)

sesquiterpene/zapalenie

Absorption and Bioavailability of Major Monoterpenes in Mastiha Oil; a Kinetic Study in Humans.

Beneficial Effects of a Polyphenol Enriched Beverage on Type 2 Diabetes Prevention and on Cardiovascular Risk Profile of Men and Women With Insulin Resistance.

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