Table 4.
Results obtained from simultaneous pH and membrane potential measurements
Pipette solutionsAe4-transfected cellsNontransfected cells
Alkalinization rateΔVmnAlkalinization rateΔVmn
  10−3 s−1 mV   10−3 s−1 mV  
O (Cl− containing)  0.12 ± 0.03 −15.6 ± 2 6  ND −16.5 ± 2 5 
P (HCO3− free)  0.02 ± 0.01a,b −16.2 ± 2 6  ND −15.8 ± 1 4 
Q (HCO3− containing)  0.08 ± 0.01 −20.0 ± 3 7  ND −16.1 ± 3 4 
Pipette solutionsAe4-transfected cellsNontransfected cells
Alkalinization rateΔVmnAlkalinization rateΔVmn
  10−3 s−1 mV   10−3 s−1 mV  
O (Cl− containing)  0.12 ± 0.03 −15.6 ± 2 6  ND −16.5 ± 2 5 
P (HCO3− free)  0.02 ± 0.01a,b −16.2 ± 2 6  ND −15.8 ± 1 4 
Q (HCO3− containing)  0.08 ± 0.01 −20.0 ± 3 7  ND −16.1 ± 3 4 
a

P is different from O pipette solution, P = 0.01 (ANOVA).

b

P is different from Q pipette solution, P = 0.001.

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