Title : Effect of trace levels of nigericin on intracellular pH and acid-base transport in rat renal mesangial cells.

Pub. Date : 1999 May 15

PMID : 10341035






4 Functional Relationships(s)
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1 In the present study, we explore the possibility that residual nigericin from dye calibration in one experiment might interfere with intracellular pH (pHi) changes in the next. Nigericin glucose-6-phosphate isomerase Rattus norvegicus
2 Nigericin contamination caused: (i) an increase in acid loading during the pHi decrease elicited by removing extracellular Na+, (ii) an increase in acid extrusion during the pHi increase caused by elevating extracellular [K+], and (iii) an acid shift in the pHi dependence of the background intracellular acid loading unmasked by inhibiting Na-H exchange with ethylisopropylamiloride (EIPA). Nigericin glucose-6-phosphate isomerase Rattus norvegicus
3 Nigericin contamination caused: (i) an increase in acid loading during the pHi decrease elicited by removing extracellular Na+, (ii) an increase in acid extrusion during the pHi increase caused by elevating extracellular [K+], and (iii) an acid shift in the pHi dependence of the background intracellular acid loading unmasked by inhibiting Na-H exchange with ethylisopropylamiloride (EIPA). Nigericin glucose-6-phosphate isomerase Rattus norvegicus
4 Nigericin contamination caused: (i) an increase in acid loading during the pHi decrease elicited by removing extracellular Na+, (ii) an increase in acid extrusion during the pHi increase caused by elevating extracellular [K+], and (iii) an acid shift in the pHi dependence of the background intracellular acid loading unmasked by inhibiting Na-H exchange with ethylisopropylamiloride (EIPA). Nigericin glucose-6-phosphate isomerase Rattus norvegicus