TABLE 2

Maternal body weight, food intake, and endocrine measures during gestation

Standard chow–control groupStandard chow–stress groupHigh-fat–control groupHigh-fat–stress group
n11101110
Gestation day 2–14 (prestress)
    Body weight
Gestation day 2 (g)301.4 ± 12.1308.3 ± 20.2300.0 ± 14.2316.9 ± 16.9
Gestation day 14 (g)386.0 ± 14.9401.9 ± 17.1408.4 ± 17.3424.7 ± 19.7
    Body weight gain (g)84.7 ± 5.093.6 ± 7.3108.4 ± 7.3*107.8 ± 4.7*
    Food intake (kcal/day)79.6 ± 4.786.2 ± 4.5109.3 ± 6.6111.2 ± 5.8
    Corticosterone, gestation day 14 (ng/ml)100.5 ± 13.9126.0 ± 33.091.1 ± 20.0125.4 ± 7.5
Gestation day 15–21 (stress period)
    Body weight, gestation day 21 (g)474.9 ± 18.3475.1 ± 21.4488.8 ± 21.1488.6 ± 21.1
    Body weight gain (g)88.9 ± 4.173.2 ± 8.280.4 ± 5.963.9 ± 2.9*
    Food intake (kcal/day)82.5 ± 3.285.0 ± 4.095.1 ± 5.693.5 ± 5.0
    Corticosterone, gestation day 21 (ng/ml)186.2 ± 31.8389.6 ± 78.0*269.8 ± 74.2400.5 ± 61.8*
    Leptin, gestation day 21 (ng/ml)4.6 ± 0.63.4 ± 0.610.3 ± 2.07.6 ± 1.3
    Insulin, gestation day 21 (ng/ml)2.0 ± 0.32.0 ± 0.32.6 ± 0.42.3 ± 0.4
  • *P < 0.05 vs. standard chow–control group;

  • P < 0.05 vs. standard chow–control group and standard chow–stress group.