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Andreas Leffler, Michael J. Fischer, Dietlinde Rehner, Stephanie Kienel, Katrin Kistner, Susanne K. Sauer, Narender R. Gavva, Peter W. Reeh, Carla Nau
Published in Volume 118, Issue 2
J Clin Invest. 2008; 118(2):763–776 doi:10.1172/JCI32751
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Figure 8
Lidocaine evokes a TRPV1-dependent release of CGRP in hairy skin and isolated peripheral nerves.

(A) Mean increase ± SEM of CGRP release from hairy skin derived from WT (n = 8 per concentration) and TRPV1–/– mice (n = 8). All values were normalized to basal iCGRP that was determined in all preparations before they were treated with different concentrations of lidocaine (1, 10, and 30 mM). (B) Mean increase of CGRP release from the sciatic nerve derived from WT and TRPV1–/– mice. Values were normalized to basal iCGRP that was determined before treatment with 30 mM lidocaine (n = 6 per phenotype), 30 mM lidocaine plus 10 μM capsazepine (n = 7), 30 mM articaine (n = 7), or 30 mM procaine (n = 7) (Wilcoxon test). *P < 0.05.