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Fig. 1 | Genes & Nutrition

Fig. 1

From: Effect of AMY1 copy number variation and various doses of starch intake on glucose homeostasis: data from a cross-sectional observational study and a crossover meal study

Fig. 1

Change in postprandial response (mean ± SE) among the low AMY1 CN group (n = 9, black) and high AMY1 CN group (n = 10, gray) over time (min) after a starch meal. A Capillary blood glucose response to 40 g starch, B capillary blood glucose response to 80 g starch, C plasma insulin response to 40 g starch, and D plasma insulin response to 80 g starch. Three-way ANOVA demonstrated a significant AMY1 CN group × time interaction (P = 0.04) and AMY1 CN group × starch dose × time interaction (P = 0.02) for glucose. For insulin, only the AMY1 CN group × time interaction was borderline significant (P = 0.06). Two-way ANOVA separated by starch dose demonstrated significant AMY1 CN group × time interactions for both glucose and insulin at 40 g (P = 0.0011 and P = 0.0007) but not at 80 g (P = 0.49 and P = 0.59), respectively. Boxplots of the total iAUC for each group and starch dose are displayed in E for glucose and F for insulin. *Whisker reaches iAUC 91,211. AMY1, salivary α-amylase gene; CN, copy number; iAUC incremental area under the curve

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