4 citations
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August 2017 in “Journal of Cosmetic Dermatology” Finger length ratio may indicate male hair loss.
December 2006 in “8th European Congress of Endocrinology incorporating the British Endocrine Societies” Men with early hair loss and hormonal changes like PCOS could be the male equivalent of PCOS, not linked to metabolic syndrome.
16 citations
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January 2000 in “Dermatology” Men with X-linked recessive ichthyosis can still experience male-pattern baldness.
2 citations
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September 1998 in “Der Hautarzt” A gene mutation causes a rare hereditary hair loss, offering potential for new treatments.
14 citations
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September 1999 in “Mammalian genome” The scraggly mutation causes hair loss and skin defects in mice.
2 citations
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January 1960 in “Australian Journal of Biological Sciences” The Naked gene in mice causes abnormal sebaceous glands and disrupts hair follicle organization.
1 citations
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December 2013 in “BMJ case reports” A pregnant woman with Werner's syndrome died during childbirth, but her baby survived and did not have the syndrome.
January 2012 in “Faculty of Health; Institute of Health and Biomedical Innovation” Early-onset hair loss is linked to Parkinson's disease and decreased fertility.
119 citations
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November 2016 in “American journal of human genetics” Mutations in three genes cause Uncombable Hair Syndrome, leading to frizzy hair that can't be combed flat.
July 2025 in “Biochimica et Biophysica Acta (BBA) - Molecular Cell Research” MicroRNA-22-3p hinders hair regrowth in male pattern baldness by affecting a specific protein.
November 2022 in “Journal of the Endocrine Society” An 8-year-old boy's early puberty was caused by a rare hormone-secreting brain tumor, which was successfully treated with surgery.
181 citations
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January 2009 in “Nature Genetics” Certain mutations in a hair growth-related gene cause a type of genetic hair loss.
April 2024 in “Frontiers in microbiology” Certain gut bacteria may increase or decrease the risk of male pattern baldness.
September 2023 in “Journal of The American Academy of Dermatology” Adolescents with hair loss show different hormone levels by sex and often have related metabolic issues.
5 citations
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January 2020 in “in Vivo” Testosterone changes important cell communication proteins in pregnant rats' uteruses, which might affect pregnancy success.
53 citations
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October 2003 in “Developmental Biology” Too much Sonic Hedgehog protein stops hair growth in embryos.
38 citations
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July 1989 in “Archives of dermatological research” Testosterone causes hair loss in AGA mice, which are good for testing baldness treatments, and both minoxidil and cyproterone acetate can prevent this hair loss.
163 citations
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November 1976 in “Annals of Internal Medicine” Sickle cell anemia causes hormone issues and delayed puberty due to testicular failure.
2 citations
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June 2019 in “The Journal of Dermatology” Two cases showed skin abnormalities without bone or neural defects.
October 2024 in “Skin Research and Technology” Pili annulati causes zebra-striped hair but doesn't affect hair strength or quality of life.
5 citations
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October 2003 in “PubMed” Hormonal therapy is essential in late-diagnosed Kallmann's syndrome to prevent bone issues.
115 citations
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October 2009 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” The research found that Atypical Progeroid Syndrome has unique symptoms and is not caused by the buildup of a certain mutant protein.
May 2025 in “Annals of surgical case reports & images.” Certain gut bacteria may protect against hair loss, while others may increase the risk.
1 citations
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April 2019 in “Acta medica Philippina” Androgenetic alopecia is linked to a higher risk of metabolic syndrome.
Lack of Fgf21 slows hair growth by affecting gene interactions.
67 citations
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August 2007 in “American Journal of Pathology” Overexpressing the mineralocorticoid receptor in mouse skin causes skin thinning, early skin barrier development, eye issues, and hair loss.
November 2025 in “Molecular and Cellular Biomedical Sciences” There is no significant link between the MMP-1 rs1799750 polymorphism and androgenetic alopecia in the Indonesian population.
January 2026 in “Biomedicines” Dysregulated lipid metabolism may play a role in male pattern baldness.
241 citations
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March 2000 in “The Journal of Urology” Men over 50 may experience hormone decline causing various symptoms, and proper management is crucial.
Finasteride affects prostate development differently in male and female Mongolian gerbils.