Circulating nerve growth factor as a neuroimmune biomarker in first-episode major depressive disorder: Integrative analysis of serum levels and NGF Ala273Val (rs6330) polymorphism
Circulating NGF is significantly altered in first-episode MDD, supporting its role as a neuroimmunerelated biochemical marker associated with disease presence rather than symptom severity, and highlighting the potential utility of serum NGF as a laboratory biomarker in the biochemical characterization of MDD.