Hair Metal Dysregulation in Parkinson’s Disease: Implications for Diagnosis and Gut-Brain Axis Involvement

    February 2026 in “ iScience ”
    Ming Li, Ying Li, Yixian Li … Guo Jiguang
    Studysummary This study found distinct hair metal profiles in Parkinson's disease patients, with lower iron and copper, higher manganese and arsenic, and explored their link to gut dysfunction and microbiota dysbiosis, suggesting hair metal analysis as a promising diagnostic tool.
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    Research cited in this study 3

    1. Studying Hair Growth Cycle and Its Effects on Mouse Skin Journal of Investigative Dermatology · 2023
    2. Morphogenesis, Growth Cycle, and Molecular Regulation of Hair Follicles Frontiers in Cell and Developmental Biology · 2022
    3. Methods of Evaluating Hair Growth Australasian Journal of Dermatology · 2003