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Table 1 Circulating levels of testosterone, IGF-I and insulin in the three experimental groups.

From: Hepatoprotection and neuroprotection induced by low doses of IGF-II in aging rats

  Young controls (yCO)
(n = 8)
Untreated old rats (O)
(n = 8)
Old rats treated with IGF-II (O+IGF-II) (n = 8)
Free testosterone (pg/mL) 6.50 ± 1.16 4.01 ± 0.76a 4.07 ± 1.34a
IGF-I (ng/mL) 978.92 ± 63.66 629.12 ± 16.56a 656.00 ± 25.57a
Insulin (ng/mL) 0.45 ± 0.08 1.54 ± 0.43a 1.12 ± 0.10
Total Antioxidant Status (mmol/L) 0.87 ± 0.01 0.79 ± 0.01a 0.87 ± 0.02b
  1. Effect of IGF-II treatment on serum total antioxidant status.
  2. Values are expressed as ± SEM.
  3. a P < 0.05 vs yCO
  4. b P < 0.05 vs O