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GlossaryProliferating Cell Nuclear Antigen (PCNA)

protein marker for cell division and DNA repair

Proliferating Cell Nuclear Antigen (PCNA) is a protein that acts as a marker for cell proliferation, meaning it helps identify cells that are actively dividing. It plays a crucial role in DNA replication and repair, making it important for both normal cell growth and the response to DNA damage.

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compound that activates Wnt/β-catenin to promote hair regrowth and create new hair follicles

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research The Postnatal Offspring of Finasteride-Treated Male Rats Show Altered ERα and PCNA Expression in the Liver

July 2025 in “Reproductive Biology”

Finasteride use in male rats may harm their male offspring's liver function.

research An Extended Epidermal Response Heals Cutaneous Wounds in the Absence of a Hair Follicle Stem Cell Contribution

170 citations, November 2007 in “The journal of investigative dermatology/Journal of investigative dermatology”

Skin can heal wounds without hair follicle stem cells, but it takes a bit longer.

research The Success of Thread-Embedding Therapy in Generating Hair Regrowth in Mice Points to Its Possible Effect in Humans

20 citations, December 2015 in “Journal of Pharmacopuncture”

Thread-embedding therapy helped hair grow back in mice and might do the same in humans.

research Effects of Lespedeza Cuneata Aqueous Extract on Testosterone-Induced Prostatic Hyperplasia

16 citations, January 2019 in “Pharmaceutical biology”

Lespedeza cuneata extract may help treat enlarged prostate.

research Photobiomodulation Promotes Hair Regeneration in Injured Skin by Enhancing Migration and Exosome Secretion of Dermal Papilla Cells

13 citations, December 2021 in “Wound repair and regeneration”

Photobiomodulation helps hair regrow in injured skin by aiding cell movement and secretion.

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