September 2024 in “Digital Commons - University of South Florida (University of South Florida)” Hormones can change ptarmigan feather color from white to pigmented.
September 2023 in “Journal of The American Academy of Dermatology” People were generally happy with the home light therapy devices for hair loss.
Melatonin shortens the hair growth cycle by increasing PDGFA gene expression.
January 2022 in “Figshare” Melatonin affects when and how certain genes work during the different stages of hair growth in goats.
April 2023 in “Tropical Animal Health and Production” Giving melatonin to sheep before the non-breeding season can improve their chances of reproducing in northwest Mexico.
April 2024 in “International journal of molecular sciences” Light-based treatment, Photobiomodulation, shows promise for non-invasive skin therapy with few side effects.
18 citations
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March 2015 in “Journal of Investigative Dermatology” Silencing certain circadian clock genes increases skin pigmentation.
5 citations
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November 2009 in “Revista médica de Chile” Hair growth cycles in Chileans vary seasonally, with more hair resting in summer and growing in winter.
January 2022 in “Figshare” Melatonin affects when and how goat hair grows by changing gene activity at different stages.
1 citations
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April 2018 in “Journal of dairy science” Dairy cows' skin and hair follicles change size and growth phase around the time they give birth.
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.
1 citations
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June 2022 in “Photobiomodulation, photomedicine, and laser surgery”
October 2022 in “Journal of Pharmaceutical Negative Results” Photobiomodulation therapy shows promise in treating various health conditions by using specific light wavelengths.
4 citations
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April 2014 in “Lasers in Surgery and Medicine” TRASER effectively targets blood vessels and hair follicles for potential use in vascular and hair removal treatments.
12 citations
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July 2017 in “Scientific reports” Researchers developed a way to study human body clocks using hair tissue, which works similarly in both healthy and dementia patients.
May 2026 in “Journal of Investigative Dermatology”
6 citations
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December 2011 in “Nature” The circadian clock in skin cells controls their growth and rest cycles.
20 citations
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September 2022 in “Journal of Biomedical Optics” PBM helps improve cell survival in 3D tissue engineering.
September 2017 in “Journal of Investigative Dermatology” Photodynamic therapy can potentially remove nonpigmented hair by damaging hair follicles.
Delta-opioid receptors affect skin cell circadian rhythms, possibly impacting wound healing and cancer.
February 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” Cashmere goat hair growth follows a cycle with distinct growth, regression, and resting periods, influenced by specific genes.
49 citations
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April 2016 in “International journal of molecular sciences” Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.
5 citations
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January 2019 in “Methods in molecular biology” Multiphoton microscopy can effectively image live cells in cornea, skin, and hair follicles over time.
1 citations
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January 2008 in “Laser therapy” Endré Mester is highly regarded as the 'Godfather' of phototherapy.
January 2026 in “Forum Dermatologicum” LED therapy is safe and can help with acne, aging skin, and hair loss, but consumer devices may be less effective.
September 2025 in “International Journal of Innovative Technologies in Social Science” Red light therapy may help rejuvenate skin and regrow hair.
2 citations
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April 2023 in “Archives of Aesthetic Plastic Surgery” The phototrichogram is better for measuring hair thickness.
January 2024 in “Open MIND” Melatonin and photobiomodulation both help hair regrowth in German Spitz dogs with alopecia X.
236 citations
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January 1951 in “Physiological zoology” Hair growth and pigmentation in mice involve specific stages crucial for research.
2 citations
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May 2023 in “Photobiomodulation, photomedicine, and laser surgery” Light therapy is effective and safe for treating skin color disorders like vitiligo and dark spots.