1 citations
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January 2011 in “Journal of Animal Science and Veterinary Medicine” Injecting melatonin improves cashmere yield by enhancing fiber growth in goats.
154 citations
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October 1996 in “Proceedings of the National Academy of Sciences of the United States of America” Estrogen affects hair growth and skin cell multiplication.
173 citations
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November 2004 in “Seminars in Reproductive Medicine” Adrenarche increases adrenal androgens around age 6, affecting hair growth and development.
36 citations
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July 2016 in “Scientific reports” People's decision-making can be influenced by their internal biological clocks, as shown by gene expression, not just self-reported preferences for morning or evening.
15 citations
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June 1986 in “Pediatric Dermatology” Androgens increase pigmentation in young hamsters, but estrogens can reverse this effect.
Estrogen and its receptors play a key role in hair growth, with differences between males and females.
June 2016 in “Baghdad Science Journal” Young men with early baldness may have lower Luteinizing Hormone levels due to higher dihydrotestosterone, possibly from certain drugs or gland disorders.
January 2014 in “Journal of Investigative Dermatology” Proteins like aPKC and PDGF-AA, substances like adenosine and ATP, and adipose-derived stem cells all play important roles in hair growth and health, and could potentially be used to treat hair loss and skin conditions.
January 2015 in “Journal of clinical & experimental dermatology research” A protein combining parathyroid hormone and collagen helped hair regrow in mice with a hair loss condition.
November 2022 in “Skin Appendage Disorders” PT-20 did not significantly improve gray hair repigmentation.
July 2024 in “Journal of Investigative Dermatology” A peptide in shampoo can promote hair growth and improve hair condition.
30 citations
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October 2021 in “Scientific Reports” Inhibiting glycogen metabolism can promote hair growth.
12 citations
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August 2022 in “Stem cell reviews and reports” Increasing PBX1 reduces aging and cell death in hair follicle stem cells by boosting SIRT1 and lowering PARP1 activity.
12 citations
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November 2015 in “Journal of Investigative Dermatology Symposium Proceedings” PTH-CBD helps reduce hair loss in mice by stimulating hair growth directly.
53 citations
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November 2006 in “Journal of Endocrinology” Prolactin slows down hair growth in mice.
166 citations
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August 2010 in “Proceedings of the National Academy of Sciences of the United States of America” Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.
68 citations
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March 1965 in “The BMJ” Hormones and genetics affect hair growth and patterns, with some changes reversible and others not.
24 citations
,
March 2016 in “Journal of Investigative Dermatology” TIP39 and PTH2R help control calcium levels and skin cell development.
18 citations
,
March 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Estrogen increases blood vessel growth factor production, while testosterone blocks this increase.
289 citations
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May 2003 in “Journal of Investigative Dermatology” Human skin can produce steroids from cholesterol.
1 citations
,
April 2011 in “The FASEB Journal” Progesterone-derived neurosteroids affect GABA-A receptor expression, influencing epilepsy during menstrual cycles.
96 citations
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September 1975 in “The Journal of Clinical Endocrinology & Metabolism” Hormone levels change during puberty, leading to physical developments like pubic hair and voice changes.
39 citations
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November 2007 in “Experimental dermatology” Human hair follicles contain a complex network of prostanoid receptors that may influence hair growth.
April 2023 in “Journal of Investigative Dermatology” The study found that aging hair follicle stem cells change behavior, leading to hair loss, but drugs targeting these cells may help restore hair growth.
April 2024 in “Cellular signalling” Activating TRPMLs helps human cells important for hair growth and increases hair growth in mice.
April 2018 in “Journal of Investigative Dermatology” The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.
43 citations
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January 1999 in “Endocrinology” Cortisol increases a specific protein in bone cells, which may help explain its negative effects on bone.
March 1998 in “Journal of dermatological science” Diphencyprone initially increases mouse hair growth, then slows it, possibly due to changes in specific protein levels.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
34 citations
,
November 2017 in “Gynecological Endocrinology” A transwoman developed a brain tumor after nine years of hormone therapy, suggesting a possible link between the treatment and tumor development.