Granzyme B accelerates skin aging and impairs healing by breaking down important skin components.
April 2023 in “Journal of Investigative Dermatology” Mutations in the SHH pathway in certain skin cells can cause skin tumors and abnormal hair growth.
193 citations
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June 1990 in “Journal of Investigative Dermatology” March 2021 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Fat tissue around hair follicles releases a growth factor that helps hair grow and develop color.
October 2023 in “Benha Journal of Applied Sciences” Insulin resistance may contribute to hair loss in people with androgenic alopecia.
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September 1985 in “Journal of Investigative Dermatology”
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January 2004 in “Hormones” Human skin acts like a hormone-producing organ, making and managing various hormones important for skin and hair health.
25 citations
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June 2022 in “Developmental cell” Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.
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January 2015 in “Journal of clinical and investigative dermatology” IGF-1 from human placenta helps hair grow.
54 citations
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November 2017 in “Scientific Reports” The study found that certain microRNAs are higher in the cells and lower in the fluid of women with a specific type of polycystic ovary syndrome, and one microRNA could potentially help diagnose the condition.
37 citations
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June 2004 in “Human molecular genetics online/Human molecular genetics” The HCR gene contributes to psoriasis risk.
August 2013 in “Nature Reviews Drug Discovery” New treatments for cancer and skin disorders show promise in disrupting harmful cell interactions and promoting hair growth.
April 2007 in “Linchuang pifuke zazhi” TGF-β1 and 2 may play a role in hair loss in AGA.
November 2025 in “Transfusion Medicine and Hemotherapy” Platelet-rich plasma boosts hair growth by enhancing autophagy.
October 2023 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Hyperandrogenism increases heart disease risk in premenopausal women, but this risk is linked to obesity in postmenopausal women.
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January 2020 in “Frontiers in Endocrinology” OCT4 helps granulosa cell growth in early-stage follicles, and FSH increases OCT4 through specific pathways.
269 citations
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May 2002 in “Hormones and Behavior” Lowering 3α,5α-THP in the hippocampus increases anxiety and depression in proestrous rats.
September 2017 in “Journal of Investigative Dermatology Symposium Proceedings” Prostaglandin D2 increases testosterone production in skin cells through a process involving reactive oxygen species, which could be a new target for treating hair loss and other skin conditions driven by testosterone.
409 citations
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May 1991 in “Genes & Development” TGF-alpha affects skin thickness, hair growth, and may contribute to psoriasis and papilloma formation.
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May 1986 in “Clinics in endocrinology and metabolism” The exact cause of increased 5α-reductase activity leading to hirsutism in women is still unknown.
March 2023 in “Здобутки клінічної і експериментальної медицини” Low vitamin D in overweight teens is linked to higher leptin and lower adiponectin, affecting metabolism.
November 2025 in “Journal of Investigative Dermatology” NUL-5 may boost hair growth by improving hair follicle health and structure.
23 citations
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June 1992 in “PubMed” RAR-gamma 1 is important for normal skin maintenance and differentiation.
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May 2012 in “Expert Opinion on Emerging Drugs” New treatments for male hypogonadism are effective and should be personalized.
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January 2011 in “Neuropharmacology” Isolation stress in rats reduces brain enzyme levels, affecting dopamine function.
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June 2019 in “Cell cycle/Cell cycle (Georgetown, Tex. Online)” A specific RNA increases hair stem cell growth and skin healing by affecting a protein through interaction with a microRNA.
46 citations
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September 2011 in “Journal of Endocrinology” Natural 5α-reduced glucocorticoids might be anti-inflammatory with fewer side effects than current options.
Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.
June 2024 in “Journal of Cosmetic Dermatology” Higher homocysteine levels may inhibit hair growth and are linked to androgenetic alopecia.
June 2025 in “Stem Cell Research & Therapy” Isoproterenol may help treat hair loss by activating hair follicle stem cells.