Fig 4. Peripheral administration of KP-54 results in a higher peak level and longer duration of plasma kisspeptin levels compared to KP-10 in male mice.

Radioimmunoassay analysis of kisspeptin plasma levels over 2 hours after 1 nmole i.p. injection of KP-10 (n = 4) or KP-54 (n = 4). Note the different scale between the KP-10 and the KP-54 plots. Data points are means ± SEM.