Metabolic Syndrome

The groups will be randomized to receive 45g of blueberry powder or control (i.e., placebo) per day. Blueberry powder will be given as a smoothie to be consumed at the breakfast and dinner meals and an identical smoothie will be given as a control. The second smoothie will be consumed at least 6 hours from the first smoothie. The smoothies will be prepared in the metabolic kitchen and a week supply of frozen smoothies will be given to participants. Both the blueberry powder and control smoothie contain comparable energy and macronutrients

Blueberry Powder

Pennington Biomedical Research Center

The Effect of Blueberry Powder Supplementation on Cardiovascular Risk Factors in Subjects With the Metabolic Syndrome

This procedure records your blood pressure and heart rate. You will wear a device the size of a small camera connected to a blood pressure cuff on your arm for a period of seven days. The cuff of this device inflates automatically every 30 minutes during the day and every 60 minutes during the night. Upon inflation, the device will make a quiet noise and will cause pressure on your arm. At the end of the seven days, you will return to the clinic or Inpatient Unit at Pennington to have the monitor removed. Depending upon the amount of data collected, you may be asked to wear the monitor for additional days.

This procedure is performed to determine the response of your blood vessels to a stimulus. You will lie on your back on a bed and have a blood pressure cuff placed on your non-dominant arm (the arm you do not write with). Probes will be attached to the index finger on both of your hands, and these probes will be slightly inflated to be held in place. The blood pressure cuff will be inflated for five minutes. It will then be deflated rapidly. Data will be recorded continuously throughout the test. The entire procedure will take approximately 1 hour.

This test measures how well your body produces insulin in response to a sugar challenge. Insulin is normally produced in your body during meals and helps your body use sugar. There will be 2 IV lines, one line inserted into a vein in each of your arms. After collecting a baseline sample of your blood we will inject a solution containing sugar into one of the IV lines. We will then monitor your blood sugar and insulin levels by drawing blood from the other IV for 20 minutes. After 20 minutes we will inject insulin into the IV line and we will continue to monitor your blood sugar and insulin levels for another 3 hours.

anthocyanin/accident vascular cerebral

The Effect of Blueberry Powder Supplementation on Cardiovascular Risk Factors in Subjects With the Metabolic Syndrome

Cea mai completă bază de date cu plante medicinale susținută de știință