January 2004 in “Trace Elements Science” Diabetics have lower chromium, manganese, and copper, but higher iron in their hair.
September 2012 in “European journal of psychotraumatology” A new method accurately measures long-term hormone levels in hair.
January 2022 in “The Egyptian Journal of Hospital Medicine” Higher IL-21 levels may help predict alopecia areata activity.
May 2021 in “Indian journal of forensic medicine and toxicology” Low levels of iron and vitamin D might be linked to chronic hair loss in women.
229 citations
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March 2001 in “European journal of endocrinology” Testosterone levels influence male behaviors and physical traits, but this relationship is complex and influenced by both internal and external factors.
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.
169 citations
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November 2009 in “The Journal of Clinical Endocrinology & Metabolism” Prepubertal girls have higher sex steroid levels than boys, possibly leading to earlier puberty.
1 citations
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December 2019 Selenium is essential for health, but too much or too little can cause problems; blood selenium levels are a good measure of intake.
January 2011 in “Nuclear Techniques” Lead levels in hair increased due to environmental exposure, while iron, copper, and zinc levels stayed stable.
April 2016 in “Annals of laboratory medicine” The method reliably profiles eicosanoids and shows epitestosterone reduces their levels, similar to common anti-inflammatory drugs.
April 2020 in “Journal of the Endocrine Society” A woman's high testosterone and related symptoms were caused by overactive cells in her ovaries.
6 citations
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May 2023 in “Dermatology Research and Practice” IL-15 and TNF-α levels are higher in alopecia areata patients, especially in alopecia totalis.
December 2023 in “Kiểm nghiệm và An toàn thực phẩm/Kiểm nghiệm và An toàn thực phẩm (online)” The method detected sex hormones in some health supplements, with one containing banned testosterone.
April 2026 in “European Journal of Medical and Health Research” Women with hair loss had lower IGF-1 levels.
January 2023 in “Neuroscience applied” People with an imbalance between their cognitive and emotional empathy have lower levels of the hormone oxytocin in their hair.
6 citations
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November 2008 in “Journal of Dermatological Science” Certain proteins involved in DNA modification may affect the genetic changes in systemic lupus erythematosus and could indicate the disease's activity.
August 2025 in “Intisari Sains Medis” The buffy coat method yields higher TGF-β1 levels in PRP, especially in males.
7 citations
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April 1992 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Women with non-classical congenital adrenal hyperplasia have higher levels of certain steroids, which can be reduced by treatment.
35 citations
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January 2001 in “Journal of Animal Science” High dietary selenium, especially inorganic, causes weight loss and selenosis in pigs, with effects varying by hair color.
216 citations
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November 1999 in “Fertility and Sterility” Testing basal 17-HP levels is a good way to screen for nonclassic adrenal hyperplasia in women with high androgen levels.
January 2012 in “Iraqi postgraduate Medical Journal” Serum ferritin is a better indicator than hemoglobin for detecting low iron in women with chronic hair loss.
September 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Eyebrow hair transplants in patients with frontal fibrosing alopecia may look good at first but often lose the new hair after a few years.
October 2021 in “Dermatology Reports” Higher IL-17A levels indicate more severe alopecia areata.
March 2024 in “BMC women's health” The levonorgestrel implant increases free testosterone and lowers SHBG more than DMPA-IM and the copper IUD.
26 citations
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January 1982 in “Hormone Research” Normal androgen levels need ACTH, and different mechanisms control adrenarche and gonadarche.
January 2025 in “The Egyptian Journal of Hospital Medicine” High levels of NEDD4-TV3 and IGF-1 may predict and contribute to keloid formation.
June 2025 in “Medical Science Journal for Advance Research” Higher levels of MIG and IP-10 may help diagnose and monitor Alopecia Areata.
December 2013 in “Praxis medica” Using both DLQI and Skindex-16 together gives a better understanding of quality of life in skin disease patients.
Alopecia areata patients have higher levels of certain immune receptors, suggesting new treatment possibilities.
September 2019 in “Mağallaẗ Tikrīt li-l-ʻulūm al-ṣirfaẗ” Women with PCOS have higher levels of certain hormones compared to healthy women, and these levels vary with BMI, age, and treatment type.