The change in [Ca²⁺]_i of PHM1-41 cells in response to 25 nM oxytocin.

<p>The response of all cells are shown in (A) and cells unresponsive to oxytocin stimulation are excluded from the analysis in (B). Data are expressed as the mean peak increase in [Ca²⁺]_i per dish. Values are mean ± SEM (n = 7 experiments at 10 µM and 30 µM; n = 12 experiments at 100 µM). Bars not sharing common letters are significantly different between treatment groups, p<0.05.