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Bioactivity of GDNF/BDNF was demonstrated at 1 h, 4, and 7 weeks of the release study, increasing RGC survival by 70%, 43%, and 64%, respectively, compared to Blank MSs. Blank MSs (MSs); GDNF/BDNF/VitE(40)-loaded PLGA microspheres (MSs-GBE40).
