High resolution

Module 8: Figure progesterone-induced Ca2+ signals

Progesterone-induced Ca2+ signals in human sperm.

The top panel represents responses of 40 separate sperm cells stimulated with 3.2 μM progesterone. The average response of 202 cells is shown in the bottom panel. Reproduced from Dev. Biol., Vol. 222, Kirkman-Brown, J.C., Bray, C., Stewart, P.M., Barratt, C.L.R. and Publicover, S.J., Biphasic elevation of [Ca2+]i in individual human spermatozoa exposed to progesterone, pp. 326–335. Copyright (2000), with permission from Elsevier; see Kirkman-Brown et al. 2000.