Different types of sun exposure damage skin cells and immune cells, with chronic exposure leading to more severe and lasting damage.
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July 2014 in “Our Dermatology Online” The patient with both scarring and non-scarring hair loss showed complex immune reactions and improved with steroid treatment.
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June 2007 in “Journal of Medical Primatology” The monkey's hair loss was due to an autoimmune disease, not genetics.
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August 2009 in “British Journal of Dermatology” Epidermal stem cells could lead to new treatments for skin and hair disorders.
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November 2010 in “Development” Activating Notch in adult skin causes T cells and neural crest cells to gather, leading to skin issues.