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A. Representative photomicrograph of renal pelvic wall with calcitonin gene-related peptide (CGRP) and tyrosine hydroxylase (TH) immunoreactive staining in the rats without and with capsaicin treatment (magnification, X400). B. Relative CGRP and TH protein expression in the renal pelvic wall in the two groups of rats. Data are presented as mean ± SE. *P < 0.05 vs. Control.
