The purpose of the present study is to evaluate the effect of blueberry dry powder on glycemic status (fasting plasma glucose, 2h glucose concentration after the oral glucose tolerance test (OGTT), or HbA1c) in subjects with prediabetes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
50
Hiroshima University
Hiroshima, Hiroshima, Japan
Change in fasting plasma glucose from baseline
Time frame: Every 6 weeks (Overall 12 weeks)
Change in 2h glucose concentration after the oral glucose tolerance test (OGTT) from baseline
Time frame: Weeks 0 and 12
Change in HbA1c from baseline
Time frame: Weeks 0 and 12
Change in glycoalbumin from baseline
Time frame: Every 6 weeks (Overall 12 weeks)
Change in fasting insulin from baseline
Time frame: Weeks 0 and 12
Change in homeostasis model assessment-insulin resistance (HOMA-R) from baseline
HOMA-R is calculated as fasting insulin (mU/mL) x fasting glucose (mg/dL) / 405
Time frame: Weeks 0 and 12
Change in serum C-peptide from baseline
Time frame: Weeks 0 and 12
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