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Diffusive permeability (P) of the in vitro BBB models to three solutes: (a) Tetramethyl-6-Carboxyrhodamine (TAMRA) (MW = 467); (b) Dextran 10K; (c) Dextran 70K. The definitions for the in vitro BBB models are the same as in Fig. 6. The values are presented as mean ± SD. * p < 0.01 compared to bEnd3 monolayer.
