23 citations
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December 2008 in “Current medicinal chemistry” Stimulating sensory neurons can increase IGF-I production, which may help treat various diseases and improve tissue health.
1 citations
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February 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” A peptide from hair follicle stem cells promotes hair growth by activating specific skin cells.
221 citations
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July 2012 in “Proceedings of the National Academy of Sciences of the United States of America” BMAL1 controls skin cell growth and UV damage risk, peaking at night.
4 citations
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February 2025 in “GeroScience” Increasing neuropeptide Y in the brain can slow aging signs in mice.
April 2018 in “Journal of Investigative Dermatology” Researchers found a substance in chicken egg yolk that helps hair grow.
November 2022 in “Journal of Investigative Dermatology” Blocking mTORC1 activity could increase hair pigmentation and potentially reverse greying.
27 citations
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October 1945 in “Endocrinology” Synthetic hormone treatment reduces melanin and hair growth in rats.
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May 1994 in “Veterinary Pathology” PTHrP is higher in certain dog tumors and may act as a local growth factor.
Testosterone in human pancreas cells boosts insulin production.
6 citations
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January 2007 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Gray hair regained color after thyroid hormone treatment.
70 citations
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December 2004 in “Proceedings of the National Academy of Sciences” BMP signaling affects hair color by interacting with the MC-1R pathway.
5 citations
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October 2013 in “Experimental Dermatology” The commentary explains that a balance of HR protein and putrescine is important for normal hair growth.
5 citations
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November 2022 in “Molecular Neurobiology” Melatonin may protect inner ear cells from damage by reducing cell death and oxidative stress, potentially treating sudden hearing loss.
April 2020 in “Research Square (Research Square)” Melatonin treatment improved cashmere production in goats for one cycle without lasting effects on the next cycle.
May 2025 in “Veterinary Medicine and Science” Melatonin improved reproductive function in male Pomeranian dogs with Alopecia X, but more research is needed.
100 citations
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April 1990 in “The Journal of Clinical Endocrinology & Metabolism” The ovary mainly causes high testosterone in PCO, while the adrenal gland is the main source in IH.
March 2014 in “Human Physiology” DHEA improved brain function and behavior in old monkeys and had additional health benefits.
23 citations
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November 2007 in “Actas Dermo-Sifiliográficas” Thyroid hormone (T3) may reverse gray hair by stimulating hair growth.
December 2022 in “Cureus” Hormones significantly influence hair growth, with conditions like hirsutism and patterned hair loss linked to hormone levels; more research is needed for full understanding.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
13 citations
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July 2016 in “BMC Complementary and Alternative Medicine” Hominis Placenta helps hair grow back by increasing cell growth and a specific growth factor.
11 citations
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August 2020 in “Diabetes” Testosterone helps human pancreatic cells increase insulin release.
January 2008 in “HAL (Le Centre pour la Communication Scientifique Directe)” The mutant HR bmh protein affects hair follicle formation by failing to repress vitamin D receptor activity.
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January 1973 in “BMJ” Primary hypothyroidism can mimic pituitary failure but improves with hormone therapy.
September 2012 in “European journal of psychotraumatology” A new method accurately measures long-term hormone levels in hair.
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April 2013 in “PLOS ONE” TNFα, IFNγ, and Substance P significantly affect prolactin levels in human skin, suggesting new treatments for skin and hair conditions.
May 2012 in “F1000Research” Proteins released by cells can promote hair growth in people.
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July 2014 in “Experimental Dermatology” PTHRP agonists can stimulate hair growth, especially in damaged follicles, while antagonists may initially increase growth but ultimately inhibit it.
109 citations
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December 1998 in “The Journal of Dermatology” Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.