Substantia nigra echogenicity is associated with serum ferritin, gender and iron-related genes in Parkinson’s disease

Substantia nigra (SN) hyperechogenicity is present in most Parkinson’s disease (PD) cases but is occasionally absent in some. To date, age, gender, disease severity, and other factors have been reported to be associated with SN hyperechogenicity in PD. Previous studies have discovered that excess ir...

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