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Table 1 General characteristics of male and female rats at 6, 12, and 18 months of age

From: Impact of gonadectomy on blood pressure regulation in ageing male and female rats

General characteristics 6 months 12 months 18 months Three-way ANOVA
F-INTACT F-GONADX M-INTACT M-GONADX F-INTACT F-GONADX M-INTACT M-GONADX F-INTACT F-GONADX M-INTACT M-GONADX  
BW (g) 264.7 ± 18.1 287.8 ± 19.4 425.1 ± 11.8 398 ± 18.1 295.9 ± 20.9 350.6 ± 20.9 504.3 ± 18.3 427.1 ± 18.1 372.4 ± 18.1 422.1 ± 18.1 627.1 ± 24.3 533.4 ± 18.1 6 < 12 < 18*** F < M***; Sex*GONADX***
Kidney left (g) 0.8 ± 0.05 0.9 ± 0.05 1.4 ± 0.05 1.0 ± 0.05 1.1 ± 0.07 0.9 ± 0.07 1.5 ± 0.05 1.1 ± 0.05 1.0 ± 0.05 1.0 ± 0.05 1.5 ± 0.05 1.1 ± 0.05 6 < 12,18***; F < M***; Sham > GONADX***; Gender*GONADX***
Heart (g) 0.9 ± 0.06 0.9 ± 0.06 1.5 ± 0.06 1.1 ± 0.06 1.2 ± 0.06 0.9 ± 0.07 1.2 ± 0.06 1.0 ± 0.06 1.1 ± 0.06 1.0 ± 0.06 1.5 ± 0.06 1.2 ± 0.06 6 > 12 < 18***; F < M***; Sham > GONADX***; Gender*GONADX***
Urine volume (ml/24 h) 11.0 ± 1 9.9 ± 1 11.1 ± 1 9.7 ± 1 13.4 ± 1 10.1 ± 2 10.1 ± 1 10. ± 1 10.9 ± 1 7.9 ± 1 11.3 ± 1 15.2 ± 1 Sex*GONADX*, Sex*Age*
Water intake (ml/24 h) 27.5 ± 2 18.3 ± 2 22.8 ± 2 20.6 ± 2 26.2 ± 3 20.9 ± 3 23.6 ± 2 21.1 ± 2 24.9 ± 2 18.9 ± 2 22.1 ± 2 24.4 ± 2 Sham > GONADX***, Sex*GONADX*
  1. Animals underwent sham (INTACT) or ovariectomy or castration (GONADX) surgery at 10 weeks of postnatal age. The three-way ANOVA assessed the main factor effects of age, sex steroid and surgery, with Tukey HSD post hoc analysis where applicable. Data are presented as mean ± SEM for n = 8 animal per group
  2. FI female INTACT, FG female GONADX, MI male INTACT, MG male GONADX,
  3. *P < 0.05; ***P < 0.001