Causal relationship between diabetes mellitus, glycemic traits and Parkinson's disease: a multivariable mendelian randomization analysis.

"Declarations Conflict of interestThe authors declare that the research was conducted without any commercial or financial relationships that could be construed as a potential conflict of interest. Conflict of interest The authors declare that the research was conducted without any commercial or financial relationships that could be construed as a potential conflict of interest."

"Funding This work was supported by Hainan Provincial Natural Science Foundat ion of China823MS133823MS133; Hainan Key Scientific Research Projects (14A110060), Key R&D Plan Projects of Hainan Province (ZDYF2021SHFZ091), Hainan Natural Science Foundation Innovative Research Team Projects (2016CXTD010), Key Educational Reform Projects of Hainan Province (Hnjg2019ZD-15), and High-level Talents of the Hainan Natural Science Foundation (820RC759). This work was Supported by the Construction Project of Hainan Province Clinical Medical Center and Science, Innovation Platform for Academicians of Hainan Province. The funding bodies had no role in the design of the study; the collection, analysis, or interpretation of the data; or the writing of the manuscript."