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. Author manuscript; available in PMC: 2014 Jan 30.
Published in final edited form as: Int J Pharm. 2012 Dec 20;441(0):40–49. doi: 10.1016/j.ijpharm.2012.12.011

Fig. 7.

Fig. 7

Apical uptake of [3H]Gly-Sar (0.5 μCi/mL) in the absence (control) or presence of peptide transporter inhibitors, fosinopril (100 μM), cefadroxil (20 mM) and glycyl-L-proline (Gly-Pro, 20 mM) at pH 7.4, 37 °C for 15 min in various MDCKII cell lines with different cell passages. Low Passage: passage number is less than 6; High Passage: passage number is more than 25. Each data point represents mean ± SD (n = 3). *P < 0.05 and **P < 0.01 compared with control.