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
,
October 2021 in “Scientific Reports” Inhibiting glycogen metabolism can promote hair growth.
12 citations
,
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
,
November 2015 in “Journal of Investigative Dermatology Symposium Proceedings” PTH-CBD helps reduce hair loss in mice by stimulating hair growth directly.
53 citations
,
November 2006 in “Journal of Endocrinology” Prolactin slows down hair growth in mice.
166 citations
,
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
,
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
,
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
,
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
,
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
,
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.
4 citations
,
May 2023 in “Pigment Cell & Melanoma Research” BMI1 is essential for preventing hair greying and maintaining hair color.
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.
17 citations
,
April 2016 in “Journal of Investigative Dermatology” KB2115 (eprotirome) can safely extend the hair growth phase without damaging cells or changing hair color.
January 2004 in “Banca y finanzas: Revista profesional de gestión financiera” Androgens increase pigmentation in certain hamster skin areas, but estrogens can reverse this effect.
3 citations
,
October 2021 in “Clinica Chimica Acta” Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.
32 citations
,
October 2004 in “Experimental Dermatology” α-MSH may help treat skin inflammation and fibrosis.
Finasteride may cause changes in dopamine-related genes, possibly leading to post-finasteride syndrome.