February 2026 in “iScience” Hair metal analysis may help diagnose Parkinson's disease and suggests gut involvement.
January 1990 in “Advances in behavioral biology” 16 citations
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May 2020 in “Psychoneuroendocrinology” People with Parkinson's disease have higher levels of cortisone in their hair, which may indicate chronic stress hormone dysfunction.
47 citations
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March 2017 in “Clinical, cosmetic and investigational dermatology” Certain skin conditions may indicate or increase the risk of Parkinson's disease.
2 citations
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January 2023 in “Pharmaceuticals” Sex and sex hormones can affect brain inflammation in Parkinson's disease, with male mice being more affected and female mice showing a protective effect.