Decreased hepatic enzymes reflect the decreased vitamin B6 levels in Parkinson's disease patients. - Ikenaka, Kensuke; Kajiyama, Yuta; Aguirre, César; Choong, Chi‐Jing; Taniguchi, Seira; Doi, Junko; Wang, Nan; Ajiki, Takahiro; Ogawa, Kotaro; Kakuda, Keita; Kimura, Yasuyoshi; Mochizuki, Hideki (Pharmacology Research & Perspectives, 2024)