Title : Subunit and frequency-dependent inhibition of acid sensing ion channels by local anesthetic tetracaine.

Pub. Date : 2013 Jun 10

PMID : 23758830






4 Functional Relationships(s)
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1 Here, we studied the effect of local anesthetic tetracaine on ASIC currents. Tetracaine acid-sensing (proton-gated) ion channel 1 Mus musculus
2 In addition to ASIC3, tetracaine inhibited the ASIC1a and ASIC1beta currents. Tetracaine acid-sensing (proton-gated) ion channel 1 Mus musculus
3 In cultured mouse dorsal root ganglion neurons, 1-3 mM tetracaine inhibited both the transient and sustained ASIC currents. Tetracaine acid-sensing (proton-gated) ion channel 1 Mus musculus
4 At pH4.5, 3 mM tetracaine reduced the peak ASIC current to 60.06 +- 4.51%, and the sustained current to 48.24 +- 7.02% of the control values in dorsal root ganglion neurons. Tetracaine acid-sensing (proton-gated) ion channel 1 Mus musculus