Fig. 4From: Nanomolar EP4 receptor potency and expression of eicosanoid-related enzymes in normal appearing colonic mucosa from patients with colorectal neoplasiaCalculated mean RMax values displayed as µA·cm−2 from (A) single receptor models and (B) two receptor models upon biopsy stimulation with PGE2 or a selective EP receptor agonist. Numbers under the graph show N/n, N = number of patients, n = number of biopsies, NA = not applicable due to insufficient N/n. Data are presented as means ± SEM. *p < 0.05Back to article page