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Expression levels of functional markers in the GS-aggregates. Representative Western blotting and quantification of the levels of N-CAM and Cx43 in GS-aggregates cultured in the RCCS bioreactor for 24 h and 2 weeks (2 w). Data are densitometric ratio analyses as means ±SEM from 3 independent experiments. * P < 0.05, for 2-week versus respective 24 h cultures.
