September 2017 in “Journal of Investigative Dermatology” Blue light helps hair growth by affecting specific proteins in hair follicle cells.
37 citations
,
January 1986 in “Carcinogenesis” ODC expression in mouse skin and tumors is varied and can be inhibited by retinoic acid or cycloheximide.
18 citations
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April 2010 in “Langmuir” Human hair surface varies in wettability, showing daily and monthly patterns.
30 citations
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October 2021 in “Scientific Reports” Inhibiting glycogen metabolism can promote hair growth.
31 citations
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December 2023 in “GeroScience”
51 citations
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May 2021 in “Nature Communications” High proliferation and cell delamination drive early skin development, while later stages may not rely on cell division orientation.
December 2025 in “Brazilian Journal of Hair Health” The Spiral Model helps understand hair growth changes with age and identify hair problems early.
1 citations
,
August 2023 in “Nature communications” Hdac1 and Hdac2 help maintain and protect the cells that control hair growth.
48 citations
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May 2019 in “Genome Biology” Researchers found that certain RNA circles in the brain are linked to disease risk, but their exact role in disease is still unknown.
September 2021 in “European Neuropsychopharmacology” The research explores how gut bacteria and sleep patterns are related in mental health disorders.
The estrogen receptor pathway controls hair growth cycles and affects skin cell growth.
1 citations
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January 2010 Ornithine decarboxylase is crucial for human hair growth and the hair cycle.
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.
10 citations
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January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
Raptor and Rictor have stable expression in hair cycles, with Raptor marking stem cells and Rictor involved in hair shaft formation.
2 citations
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February 2025 in “Journal of Investigative Dermatology” January 2002 in “Europe PMC (PubMed Central)” The model successfully simulates human hair growth and patterns, including hair loss types.
April 2023 in “Journal of Investigative Dermatology” Aging changes skin cells, leading to different DNA methylation and gene activity, affecting cell metabolism and aging signs.
January 2011 in “China Animal Husbandry & Veterinary Medicine” Constant-release melatonin reduces SOX21 gene expression in goats during the hair follicle resting phase.
January 2016 in “Xumu Shouyi Xuebao” Glycogen helps E. coli cells divide unevenly and organize their contents.
21 citations
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December 2019 in “PloS one” The rat model showed early perimenopause with regular cycles and low hormones, and late perimenopause with irregular cycles and higher hormone levels.
May 2026 in “Journal of Controlled Release”
April 2019 in “Journal of Investigative Dermatology” Calcium signals and SHH guide the direction of feather growth in chicken skin.
237 citations
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September 2018 in “Clinical Biochemistry” Hair cortisol analysis can help diagnose stress-related conditions but needs more refinement for widespread use.
74 citations
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February 2011 in “Headache The Journal of Head and Face Pain” Sumatriptan injections, high-flow oxygen, and verapamil effectively treat cluster headaches.
51 citations
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July 2013 in “Brain Research” Testosterone needs to be converted to DHT to reduce stress response in male rats.
26 citations
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March 2001 in “PubMed” Men's fertility and sexual health decline with age, with reduced testosterone and virility, and many lose fertility by their eighties.
11 citations
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June 2021 in “Preprints.org” Melatonin may help with atopic dermatitis by reducing inflammation and improving sleep.
September 2024 in “Brazilian Journal of Hair Health” Nutrients can help improve hair growth and thickness caused by pollution.