Scheme 1.
MSs formulation hypothesis (■ = GDNF protein; ○ = fatty additive; ▲ = BDNF protein). (a) GDNF/VitE(20)-loaded PLGA microspheres (MSs-GE20); (b) GDNF/BDNF/VitE(40)-loaded PLGA microspheres (MSs-GBE40).
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