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. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: Mol Biochem Parasitol. 2010 Jan 11;171(1):8–16. doi: 10.1016/j.molbiopara.2009.12.006

Fig. 6.

Fig. 6

A: Current-clamp trace showing the effect of caffeine (30 mM) on the membrane potential and conductance. Note that the application of caffeine produced a slow depolarization associated with an increase in conductance.

B: The membrane potential responses to the injected ramp currents fitted with linear regression before application of caffeine (black arrow Fig. 6 A) and at the peak depolarization (blue arrow Fig 6A) in the IV plot. The reversal potential, Erev, estimated after extrapolating the membrane potential responses was -12 mV.