Figure 3. hKSper currents from human epididymal spermatozoa are insensitive to intracellular alkalinization.
The upper panel shows representative IKSper traces recorded from human epididymal spermatozoa (whole sperm cell) in the control (black) and in the presence of 10 mM NH4Cl (red). The lower panel presents mean currents acquired at +120 mV; (n), number of experiments. IKSper did not change upon intracellular alkalinization with current densities averaging at 67 ± 10 pA (control) and 62 ± 11 pA (after addition of 10 mM NH4Cl). Three epididymal spermatozoa were tested.