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. 2012 Feb 22;142(4):717–723. doi: 10.3945/jn.111.152975

TABLE 2.

Glucose homeostasis and SCFA variables in men and women following 4-wk feeding periods for control (0 g/d HAM-RS2), 15 g/d HAM-RS2, and 30 g/d HAM-RS21

Variable2 Control 15 g/d HAM-RS2 30 g/d HAM-RS2 P
Men
n 11 11 11
 ln SG,100 x min 0.85 ± 0.14 (2.35) 0.79 ± 0.14 (2.19) 0.84 ± 0.14 (2.31) 0.88
 ln AIRG, pmol x L x min 7.98 ± 0.28 (2918) 7.52 ± 0.28 (1844) 7.88 ± 0.28 (2637) 0.06
 Total FFA, mmol/L 0.46 ± 0.05 0.50 ± 0.05 0.47 ± 0.05 0.81
 ln Acetate, μmol/L 4.3 ± 0.2 (75.2) 4.5 ± 0.2 (90.5) 4.6 ± 0.2 (96.2) 0.61
 ln Butyrate, μmol/L −0.2 ± 0.4 (0.8) 0.5 ± 0.4 (1.6) 0.9 ± 0.4 (2.4) 0.21
 ln Propionate, μmol/L 2.0 ± 0.2 (7.1) 1.9 ± 0.2 (6.5) 2.0 ± 0.2 (7.4) 0.80
Women
n 22 21 22
 SG, x 100 min 2.54 ± 0.17 2.33 ± 0.18 2.34 ± 0.18 0.41
 AIRG, pmol x L x min 2540 ± 340 2120 ± 344 2720 ± 349 0.14
 Total FFA, mmol/L 0.56 ± 0.04 0.67 ± 0.05 0.59 ± 0.04 0.07
 ln Acetate, μmol/L 4.2 ± 0.1a (68.9) 4.2 ± 0.1ab (69.5) 4.4 ± 0.1b (84.5) 0.03
 ln Butyrate, μmol/L −0.4 ± 0.3 (0.7) −0.1 ± 0.3 (0.9) −0.1 ± 0.3 (0.9) 0.73
 ln Propionate, μmol/L 1.8 ± 0.1 (6.0) 1.7 ± 0.1 (5.4) 1.8 ± 0.1 (6.1) 0.69
1

Data are least squares mean ± SEM (geometric least squares mean of the transformed data). Means in a row with superscripts without a common letter differ, < 0.05. AIRG, acute insulin response to i.v. glucose; HAM-RS2, high-amylose maize type 2 resistant starch; SG, glucose effectiveness.

2

Glucose homeostasis variables and SCFA concentrations are from measurements in plasma; FFA concentrations were measured in serum.