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Table 5 Plasma lipids and gut hormones of obesity-prone and obesity-resistant rats after consuming diets with different levels of resistant starch for 4 wk 1

From: Dietary resistant starch dose-dependently reduces adiposity in obesity-prone and obesity-resistant male rats

  Resistant starch (RS), % of diet weight Main Effects (P-value)
  0% 4% 8% 12% 16% RS Phenotype RS x Phenotype
Triglycerides2, mmol/L 1.4 ± 0.1 c 1.1 ± 0.1 bc 0.8 ± 0.1 ab 0.9 ± 0.1 ab 0.7 ± 0.1 a 0.0001 ns ns
Free fatty acids2, mmol/L 0.30 ± 0.02 0.29 ± 0.02 0.32 ± 0.03 0.34 ± 0.04 0.30 ± 0.03 ns ns ns
Total cholesterol2, mmol/L 1.8 ± 0.1 c 1.8± 0.1 bc 1.6 ± 0.1 ab 1.5 ± 0.1 ab 1.5 ± 0.1 a 0.002 ns ns
Leptin3, μg/L 14.7 ± 4.7 b 11.7 ± 1.1 ab 7.3 ± 4.5 a 8.3 ± 0.9 ab 5.3 ± 0.8 a 0.027 0.0424 ns
GLP-13, pg/mL 29 ± 4 a 47 ± 4 ab 70 ± 7 bc 76 ± 6 bc 95 ± 23 c 0.0001 ns ns
PYY3, pg/mL 71 ± 14 a 137 ± 11 ab 230 ± 30 bc 222 ± 22 bc 297 ± 54 c 0.0001 ns ns
GIP3, pg/mL 372 ± 57 a 165 ± 29 b 134 ± 25 b 176 ± 52 b 81 ± 18 b 0.001 ns ns
  1. 1 Values are means ± SEM. Labelled means without a common letter differ, P < 0.05. ns = not significant, P > 0.05. GLP-1; glucagon-like peptide −1, PYY; polypeptide Y, GIP; gastric inhibitory peptide.
  2. 2n=16 (Obesity-prone; n=8, Obesity-resistant; n=8).
  3. 3n=8 (Obesity-prone; n=4, Obesity-resistant; n=4).
  4. 4 obesity-prone 11.7 ± 1.7 μg/L, obesity-resistant 7.3 ± 1.1 μg/L.