85 citations
,
May 2009 in “Hippocampus” Progesterone helps adult male mice grow more neurons and improves memory.
12 citations
,
September 1999 in “The journal of experimental zoology/Journal of experimental zoology” Prolactin levels do not control the start of winter fur growth in mink.
15 citations
,
August 2014 in “Journal of dermatological science” Pueraria thunbergiana extract may help prevent hair from turning gray.
1 citations
,
October 2023 in “Biology” Fasting in hens affects thyroid hormones, which regulate feather and hair growth.
January 2008 in “Annals of Nutrition and Metabolism” Parthenolide promotes hair growth in mice and may influence pathways related to male pattern baldness.
January 2019 in “DSpace@MIT (Massachusetts Institute of Technology)” Higher PHGDH levels cause unusual melanin buildup in hair follicles.
12 citations
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April 2019 in “Scientific Reports” A protein called HMGB1 helps hair grow by affecting prostaglandin metabolism.
3 citations
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January 2012 in “Internal Medicine” A Rathke's cleft cyst caused hormonal imbalances and symptoms in a 68-year-old woman.
September 2012 in “European journal of psychotraumatology” A new method accurately measures long-term hormone levels in hair.
6 citations
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December 2011 in “Nature” The circadian clock in skin cells controls their growth and rest cycles.
36 citations
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November 2009 in “Journal of Investigative Dermatology” Prolactin may affect hair growth differently based on gender and scalp area.
98 citations
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December 2003 in “The FASEB Journal” Thymosin β4 promotes hair growth by activating stem cells in hair follicles.
27 citations
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January 2017 in “Neuropsychopharmacology” The enzyme 5α-reductase is key in causing psychotic-like effects from sleep deprivation.
12 citations
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April 2020 in “British Journal of Dermatology” Caffeine may help reduce stress-induced hair loss.
September 2019 in “Journal of Investigative Dermatology” PCE-DP brightens skin and promotes hair growth by enhancing cell growth and reducing melanin uptake.
33 citations
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May 2006 in “Journal of Investigative Dermatology” PTHrP and its receptor can control blood vessel growth and hair development in mouse skin.
49 citations
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July 2000 in “Journal of Histochemistry & Cytochemistry” POMC-derived peptides are important for skin functions like immune response and stress management.
1 citations
,
January 2015 in “Journal of Pigmentary Disorders” Melasma is a skin condition linked to female hormones, genetics, UV exposure, and certain medications, but not to pituitary, adrenal, or thyroid diseases.
August 2016 in “Journal of Investigative Dermatology” The enzyme CD73 helps control human hair growth and could be targeted to treat hair growth disorders.
April 2018 in “Journal of Investigative Dermatology” STIM1 is essential for sweat secretion.
March 2025 in “American journal of biochemistry & biotechnology/American journal of biochemistry and biotechnology” Higher levels of certain hormones and lower levels of minerals may contribute to hair loss.
109 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.
July 2022 in “Journal of Investigative Dermatology” The combination of a plant extract and a peptide can increase hair pigmentation and may reverse greying.
May 2021 in “International journal of developmental research” Estrogens and progesterone are key in regulating melasma pigmentation.
17 citations
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April 2006 in “Brain Research” 5α-reduced neurosteroids may help regulate glial cell differentiation.
9 citations
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September 2013 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” Matriptase is highly active in hair follicles and sebaceous glands, especially during hair growth phases.
115 citations
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August 2008 in “The Journal of Clinical Endocrinology & Metabolism” Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.
April 2020 in “Journal of the Endocrine Society” The patient with a misplaced pituitary gland and interrupted pituitary stalk is being treated with hormone replacement.
13 citations
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October 2013 in “The Journal of Dermatology” Cepharanthine may help hair growth by increasing IGF-I in scalp cells.
55 citations
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March 2010 in “Aging” Circadian clock genes are important for hair growth and may affect aging-related hair loss and graying.