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Hematoxylin and eosin stained, 5 μm thick sections of substantia nigra at ×40 showing dopaminergic neurons in control animals (a), rotenone-treated animals (b), and chrysin+rotenone treated animals (c). Section b from rotenone-treated Parkinson animals is showing few neurons of variable sizes. Section c, from animals treated with chrysin+rotenone, is showing a higher number of dopaminergic neurons comparatively, with uniform dimension
