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A number of studies have reported the presence of polyphenolic compounds in artichokes, being the most abundant the caffeoylquinic acids (CQAs), which are esters between quinic acid and the hydroxycinnamate caffeic acid. The fate of artichoke polyphenols in humans after ingestion is currently unknown. The acute study will provide novel information on the bioavailability and metabolism of artichoke polyphenols, which will give important insights to understand the potential health benefits of artichoke consumption.
Health men and women participants (n=8) aged between 18 to 40 years old will be recruited. Participants will consume a normal ration of artichokes once. The participants will provide the investigators with urine and blood samples for polyphenol analysis at baseline and at different time points until 24 hours.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Artichokes | Experimental | 1 day of artichokes intake |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Artichokes | Dietary Supplement | Approximately 200 g of cooked artichokes |
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| Measure | Description | Time Frame |
|---|---|---|
| Change in qualitative identification of polyphenols and their metabolites of artichokes in plasma between baseline and 24h post consumption | Change in polyphenols and their metabolites in plasma between baseline and 24h post consumption will be measured by identifying qualitatively metabolites from artichokes at different time points using chromatography coupled with mass spectrometry analytical techniques (UPLC-MS). | Baseline, 0.5 hours, 1 hour, 2 hours, 4 hours, 6 hours and 24 hours |
| Change in qualitative identification of polyphenols and their metabolites of artichokes in urine between baseline and 24h post consumption | Change in polyphenols and their metabolites in urine between baseline and 24h post consumption will be measured by identifying qualitatively metabolites from artichokes at different time points using chromatography coupled with mass spectrometry analytical techniques (UPLC-MS). | Baseline, 0-2 hours, 2-4 hours, 4-8 hours and 8-24 hours |
| Change in the plasmatic concentration of polyphenols (nanomol/L) and their metabolites of artichokes between baseline and 24h post consumption | Bioavailability and metabolism from artichoke polyphenols will be studied by evaluating changes in artichoke polyphenols concentration (nanomol/L) in plasma samples at different time points using chromatography coupled with mass spectrometry analytical techniques (UPLC-MS). | Baseline, 0.5 hours, 1 hour, 2 hours, 4 hours, 6 hours and 24 hours |
| Change in the concentration of polyphenols in urine (nanomol/L) and their metabolites of artichokes between baseline and 24h post consumption | Metabolism and excretion from artichoke polyphenols will be studied by evaluating changes in artichoke polyphenols concentration (nanomol/L) in urine samples at different time points using chromatography coupled with mass spectrometry analytical techniques (UPLC-MS). | Baseline, 0-2 hours, 2-4 hours, 4-8 hours and 8-24 hours |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ana Rodriguez-Mateos, PhD | ana.rodriguez-mateos@kcl.ac.uk | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| King's College London, Department of Nutritional Sciences | London | SE1 9NH | United Kingdom |
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