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Table 2 In vitro study statistics

From: Water-soluble polyphenol-rich clove extract lowers pre- and post-prandial blood glucose levels in healthy and prediabetic volunteers: an open label pilot study

IC50 Standard Error 95% Confidence Interval R2
Glucose Production
 63.80 μg/mL 0.0632 45.22–90.01 0.7192
α-Glucosidase Activity
PCE
 60.84 mg/mL 0.0283 52.84–70.05 0.9523
Acarbose
 40.28 mg/mL 0.0276 35.00–46.21 0.9568
α-Amylase Activity
 51.63 μg/mL 13.29 45.39–58.71 0.9615
  1. For the inhibitory action that PCE has on glucose production and carbohydrate hydrolyzing enzymes, we calculated the IC50 values using the log (inhibitor) vs. response equation with variable slope in GraphPad Prism 5.0 software. Standard error, 95% confidence intervals, and goodness of curve fitting (R2) are shown