Figure 5
From: Molecular and functional characterization of voltage-gated sodium channels in human sperm
Effects of veratridine (10-6 M) and progesterone (10-6 M) on intracellular free Ca2+ levels, [Ca2+] i , in human sperm cells loaded with Fura-2. The trace is representative of typical results obtained in 10 different experiments. The X Axis shows time in seconds with respect to addition of veratridine and progesterone and the Y axis shows [Ca2+]i data expressed by the ratio of F340/F380 signals.