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May 2021 in “International Journal of Dermatology” Long hair follicular unit excision is effective for hair transplants, providing quick, natural-looking results with less pain but needs more time, staff, and skill.
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November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Understanding normal hair follicle development helps analyze abnormalities in mutant mice.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Developing hair follicles form from ring-shaped patterns, with future stem cells originating from the outer ring, not the upper layers, as previously thought.
March 2026 in “PubMed Central” Female pattern hair loss is common in women, treatable with medications, and can affect mental health.
Lack of Fgf21 slows hair growth by affecting gene interactions.
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January 2019 in “PeerJ” A protein called sFRP4 can slow down hair regrowth.
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May 2017 in “British journal of dermatology/British journal of dermatology, Supplement” Certain cells around hair follicles help improve skin regeneration for potential use in skin grafts.
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January 2021 in “Stem cell research & therapy” Human skin cells with stem-like features can help create new hair follicles and sebaceous glands when combined with other cells.
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October 2025 in “Cell Reports” Regulatory T cells help hair growth by using the Cxcr4-Cxcl12 pathway.
April 2016 in “Journal of Investigative Dermatology” Wnt ligands, produced by dermal papilla cells, are essential for adult hair growth and regeneration.