Tomatoes contain several compounds which may be beneficial for human health and prevention of disease, although this relationship is poorly understood and very controversial. This study uses a new technology to study the absorption and metabolism of three different compounds found in tomatoes. These compounds are called: phytoene, phytofluene, and lycopene. We hypothesize that by studying the absorption and metabolism of these compounds, we may be able to understand how the compounds may influence health and disease processes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
12
We will administer 10 mg of labeled carotenoid mixed with olive oil and spread on an English muffin for consumption by participants.
Ohio State University Medical Center
Columbus, Ohio, United States
Plasma Half Life of Labeled Carotenoid
We will study the half life of isotopically labeled carotenoids.
Time frame: labelled lycopene: 0, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours post-dose. Labelled phytoene: hourly for hours 0 - 15, then hours 17, 19 and 21 hours after dosing. Then, 1, 2, 3 4, 7, 10, 14, 17, 21 and 28 days post dose.
Maximal Plasma Carotenoid Concentration
We will determine the average maximal plasma carotenoid concentration in healthy volunteers
Time frame: 0 to 48 hours
Time of Maximal Carotenoid Concentration
We will determine when the maximal carotenoid concentration is achieved in the plasma
Time frame: 0 to 48 hours
Carotenoid Metabolites
Study the metabolites produced from the labeled carotenoid in healthy subjects
Time frame: Up to 28 days
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