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September 2013 in “PLOS ONE” Thyrotropin-Releasing Hormone helps heal wounds in frog and human skin.
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July 2014 in “Reproductive Biomedicine Online” The length of CAG repeats in the androgen receptor gene is linked to ovarian reserve but does not affect how the ovaries respond to stimulation.
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January 2025 in “Science Advances” 5α-reductase 2 is crucial for stress response in male rats.
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May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
140 citations
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February 2014 in “Neuron” Delta opioid receptors help regulate touch sensation by reducing neurotransmitter release in the spinal cord.
February 2026 in “Psychoneuroendocrinology” Hair cortisol concentration partly reflects HPA axis regulation but doesn't capture all its complexities.
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June 2005 in “British Journal of Dermatology” Calretinin identifies the companion cell layer in human hair follicles.
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December 2009 in “Journal of the Peripheral Nervous System” TRPA1 and TRPV1 channels don't affect mechanotransduction in rat sinus hair follicles.
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May 2022 in “Genes & Diseases” 11 citations
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January 1973 in “BMJ” Primary hypothyroidism can mimic pituitary failure but improves with hormone therapy.
May 2021 in “Journal of the Endocrine Society” A patient produced cortisol after adrenalectomy, possibly due to residual tissue or other body parts making steroids.
April 2019 in “Journal of Investigative Dermatology” Non-coding RNA boosts retinoic acid production and signaling, aiding regeneration.
2 citations
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February 2019 in “Journal of Investigative Dermatology” Higher levels of the DP2 receptor may lead to hair loss.
December 2024 in “Animals” RORA may help regulate hair growth by affecting hair follicle stem cells.
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November 1999 in “British journal of dermatology/British journal of dermatology, Supplement” Hair sensitivity to androgens is partly controlled by specific enzyme expressions in different hair areas.
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January 1999 in “Journal of Animal Science” Glucocorticoids and thyroid hormones together are essential for fetal fat development.
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June 2015 in “Journal of Investigative Dermatology” Androgen receptor activity blocks Wnt/β-catenin signaling, affecting hair growth and skin cell balance.
24 citations
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March 2016 in “Journal of Investigative Dermatology” TIP39 and PTH2R help control calcium levels and skin cell development.
April 2020 in “Journal of the Endocrine Society” Hair cortisol measurement can help diagnose and monitor Cushing’s disease.
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November 2012 in “Archives of Dermatological Research” MC4R gene variants not linked to female hair loss.
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October 1992 in “PubMed” Sinus hair follicles in mammals have different nerve fiber types with species-specific patterns, especially in cats.
April 2024 in “JCEM case reports” A woman's rare benign tumor that released both cortisol and testosterone was successfully removed, improving her health.
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January 2012 in “Biological & pharmaceutical bulletin” Hairless protein can both repress and activate vitamin D receptor functions, affecting gene regulation.
July 2023 in “Journal of the ASEAN Federation of Endocrine Societies” Metyrapone effectively stabilizes severe Cushing's disease symptoms before surgery.
April 2023 in “Journal of Investigative Dermatology” Increased TEMRA cells can predict treatment outcomes in rapidly progressive alopecia areata.
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January 2022 in “Skin Pharmacology and Physiology” Dexamethasone increases the activity of androgen receptors in human skin cells, which may link it to certain types of hair loss.
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February 2008 in “Photochemistry and photobiology” Vitamin D receptor can control the hairless gene linked to hair loss even without vitamin D.
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January 1994 in “Current Opinion in Endocrinology & Diabetes” PTHrP regulates various normal body functions, including bone development, skin, and muscle function.
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November 2007 in “Molecular and cellular endocrinology” Two enzymes regulate androgen receptor activity, affecting treatments for androgen insufficiency and benign prostatic hyperplasia.
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November 2005 in “PubMed” Finasteride changes androgen receptor location in rat epididymis without altering tissue structure.