February 2026 in “Applied immunohistochemistry & molecular morphology” CD34+ cells decrease in bald areas, while Sox9 stays high, suggesting hair loss in AGA is linked to stem cell issues.
May 2025 in “International Journal of Trichology” Partially bald areas in Indian AGA patients still have hair growth cells, suggesting early treatment is best.
88 citations
,
July 2019 in “International Journal of Molecular Sciences” Using human fat tissue derived stem cells in micrografts can safely and effectively increase hair density in people with hair loss.
April 2023 in “Journal of Investigative Dermatology” IL-9/IL-9R signaling can negatively affect human hair growth and may be a target for treating hair loss conditions.
207 citations
,
July 2006 in “Development” MTS24 marks a new type of skin cell that helps hair growth and repair.