49 citations
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May 2018 in “Endocrine” Women with regular menstrual cycles and PCOS have linked kisspeptin and LH hormone patterns, unlike those with irregular cycles.
9 citations
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September 2019 in “Journal of clinical sleep medicine” Vitamin B12 deficiency can rarely cause excessive daytime sleepiness.
January 2024 in “Wiadomości Lekarskie” Ancient immune and signaling pathways still regulate blood cell development.
January 2002 in “HAL (Le Centre pour la Communication Scientifique Directe)” The enzyme system in hair follicles is similar to the liver's and is inhibited by certain substances.
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” 20 citations
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March 2014 in “Molecular Endocrinology” NFIB and STAT5 work together to control specific genetic programs in cells.
4 citations
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January 2014 in “PubMed” Hair growth is controlled by cycles influenced by hormones and various signals.
19 citations
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March 1975 in “British Journal of Dermatology” A new method accurately measures cyclic AMP levels in small skin and hair samples.
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.
48 citations
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March 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Retinoic acid production and signaling in hair follicles are regulated by location and timing, affecting hair growth and cycling.
August 2016 in “Journal of Investigative Dermatology” The endocannabinoid system affects oil production and inflammation in skin cells.
June 2008 in “Experimental dermatology” Melatonin protects skin and hair from damage and stress by acting as an antioxidant and influencing cell growth.
4 citations
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December 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Human scalp hair follicles can produce hormones and have a system similar to a brain-body communication network.
83 citations
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February 1977 in “PubMed” Increasing light exposure in winter can make mares ovulate and cycle earlier.
6 citations
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October 2018 in “PLoS ONE” Stress can slow hair growth and affect skin color by impacting the body's stress response system.
April 2019 in “Journal of Investigative Dermatology” Calcium signals and SHH guide the direction of feather growth in chicken skin.
15 citations
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February 2020 in “Journal of Investigative Dermatology” Ceramide Synthase 4 is crucial for healthy skin barrier function.
June 2026 in “Journal of Investigative Dermatology” Aging weakens sweat glands due to reduced support from immune cells, but treatments may help restore function.
August 2006 in “Experimental dermatology” Human scalp hair follicles can produce and respond to several hormones, affecting hair growth and pigmentation.
17 citations
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January 1997 in “Cell and Tissue Research” Scientists developed a method to grow human fetal skin and digits in a lab for 3-4 weeks, which could help study skin features and understand genetic interactions in tissue formation.
January 2024 in “Toxicologic Pathology” The skin protects the body, helps heal wounds, stores energy, and supports health.
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.
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.
10 citations
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September 2019 in “Frontiers in Veterinary Science” Older steers have higher hair cortisol levels than younger steers.
November 2024 in “Journal of Investigative Dermatology” Ursolic and shikimic acid together boost hair growth better than alone.
September 2024 in “Brazilian Journal of Hair Health” Nutrients can help improve hair growth and thickness caused by pollution.
A woman's Cushing's syndrome caused by adrenal cancer improved after surgery.
75 citations
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August 2018 in “Biochemical pharmacology” Targeting the skin's endocannabinoid system could help treat skin disorders.
1 citations
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April 2010 in “Digital WPI” CLK1 is needed for skin cells to become epidermal cells but not sebocytes.