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. Author manuscript; available in PMC: 2005 Nov 23.

Published in final edited form as: J Clin Endocrinol Metab. 2005 Feb 15;90(5):2941–2947. doi: 10.1210/jc.2004-1314

Time course of total [Panel A] and free [Panel B] IGF-I concentrations sampled every hour for 2 h before and 6 h during constant iv infusion of saline (50 mL/h) or rh IGF-I (10 μg/kg/h). Measurements were made following randomly ordered supplementation with placebo, estradiol (E₂) or testosterone (Te). Data are the mean ± SEM (N = 8 men and N = 8 women).

Time course of total [Panel A] and free [Panel B] IGF-I concentrations sampled every hour for 2 h before and 6 h during constant iv infusion of saline (50 mL/h) or rh IGF-I (10 μg/kg/h). Measurements were made following randomly ordered supplementation with placebo, estradiol (E₂) or testosterone (Te). Data are the mean ± SEM (N = 8 men and N = 8 women).