24 citations
,
December 2012 in “Behavioural Brain Research” Changing Allopregnanolone levels in newborns affects adult behavior and anxiety.
March 2005 in “Journal of The American Academy of Dermatology” Two cosmetic lotions used day and night may be a good alternative to minoxidil for hair loss treatment with better cosmetic effects and tolerance.
November 2025 in “Journal of Sleep Research” Iron levels are linked to sleep apnea severity, especially in women with hair loss.
8 citations
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February 2013 in “Central European Journal of Biology” Melanocytes are diverse cells important for pigmentation and skin health, influenced by genetics and environment.
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.
January 2025 in “International Journal of Dermatology Venereology and Leprosy Sciences” People with acne tend to have lower iron levels.
16 citations
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August 2000 in “Il Farmaco” Men have more tryptophan in their hair than women, and it increases with age and is higher in darker and grey or white hair.
July 2021 in “Physiology and Pharmacology” Umbilical cord masks can help reduce melasma in postpartum women.
8 citations
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May 2011 in “Journal of Pharmacology and Experimental Therapeutics” Dosing time affects finasteride's effectiveness and safety in rats.
July 2025 in “International Journal of Dermatology Venereology and Leprosy Sciences” Microneedling may improve melasma treatment by boosting topical therapy effectiveness.
27 citations
,
January 2017 in “Neuropsychopharmacology” The enzyme 5α-reductase is key in causing psychotic-like effects from sleep deprivation.
January 2025 in “Mansoura Medical Journal” Age and androgen levels significantly affect meibomian gland structure and function.
186 citations
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February 1980 in “Clinical Endocrinology” During puberty, hormone levels rise, with early increases in some steroids and most menstrual cycles becoming regular by six years after menarche.
August 2025 in “Japan Journal of Clinical & Medical Research” Many people in Misurata City have low vitamin D, especially women and those aged 35-45, with levels dropping in winter and spring.
1 citations
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March 2023 in “PloS one” Different amounts of daylight affect cashmere growth in goats by changing the activity of certain genes and molecules.
August 2024 in “Animal Bioscience” Exosomal miR-222-3p reduces melanin production in rabbits by targeting the SOX10 gene.
1 citations
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July 2023 in “Psychoneuroendocrinology” Hair cortisol is a reliable marker of long-term cortisol levels and is linked to daytime saliva cortisol but not morning levels.
1 citations
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January 2018 in “Turkiye Klinikleri Journal of Dermatology” Vitamin D levels are not correlated with chronic hair loss in Telogen Effluvium patients.
14 citations
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April 2005 in “Experimental Dermatology” Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.
Melanoma characteristics vary by age, which could help doctors with diagnosis and prevention.
6 citations
,
April 1996 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.
May 2023 in “Minia Journal of Medical Research” Vitamin D levels in hair and serum are similar for males and females.
17 citations
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May 2007 in “Forensic Science Medicine and Pathology” Clozapine levels in hair reflect dosage and bind more to pigmented hair.
84 citations
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April 2005 in “Dermatologic Clinics” Treatments for melanin disorders exist, but more effective options needed.
15 citations
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December 2016 in “Obstetrics & Gynecology” Most skin changes during pregnancy are harmless and moles don't significantly change, but many women experience pigmentation changes due to hormones and sun exposure.
Certain gene variations and different levels of BDNF and CRH hormones are linked to vitiligo.
1 citations
,
May 2016 in “The Veterinary Journal” Glucocorticoids affect dogs' skin reactions to histamine, which vary by time of day.
5 citations
,
April 2021 in “Journal of Endocrinological Investigation” Higher DHT levels are linked to fewer hypogonadism symptoms in men with normal testosterone levels.
8 citations
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June 2016 in “Journal of Cosmetic Dermatology” Women with persistent acne and high levels of antimullerian hormone are more likely to have polycystic ovarian syndrome.
157 citations
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June 2015 in “Psychoneuroendocrinology” Hair cortisol and cortisone levels increase with age, are higher in diabetics, vary by gender, decrease with frequent hair washing, and are lower in winter.