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IGF-1 is extensively researched across molecular biology, endocrinology, and metabolic science, particularly in studies focused on growth factor signalling, cellular proliferation, and tissue development

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find that there are ten transcriptionally defined dopaminergic subpopulations in the human substantia nigra, but only one carries significant PD genetic risk and is vulnerable to neurodegeneration in PD

Acknowledgements This work was financially supported by the National Natural Science Foundation of China (NSFC 52322309 and 52173139), the Young Talent Support Plan of Xian Jiaotong University, and Fundamental Research Funds for the Central Universities (xzy022021040, xzy022021052, xzy012023098, and xzy012023105)