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. Author manuscript; available in PMC: 2014 Sep 15.
Published in final edited form as: Int J Pharm. 2013 Jul 1;454(1):444–452. doi: 10.1016/j.ijpharm.2013.06.044

Fig. 7.

Fig. 7

Uptake of influx transporter substrates [14C] Arginine (0.25μCi/mL), [3H] Folic acid (0.5μCi/mL) and [3H] Biotin (0.5μCi/mL) in (C) D407 and (D) ARPE-19 cells post exposure to normoxic and hypoxic conditions (24 hours). Values are represented as mean ± SD (n=4). A P-value of less than 0.05 was considered to be statistically significant from normoxia and represented by *.