Figure 1

Plasma ghrelin and serum GH values in (a and c) early (cycle day 2) and (b and d) late follicular phase of the cycle (follicle size 16–17 mm) in 10 normally cycling women before (time −15 and 0 min) and after the i.v. injection (arrows) of (●) ghrelin (0.15 μg/kg at 0 min and 0.30 μg/kg at 90 min) or (o) saline (2 ml at 0 and 90 min). **P<0.001, *P<0.05 (difference from saline experiments).