40 citations
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January 2013 in “Frontiers in Endocrinology” Finger length ratios are not linked to the number of specific gene repeats affecting testosterone sensitivity.
January 2019 in “日本皮膚科学会雑誌” 2 citations
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April 2008 in “PubMed” A gene mutation causes monilethrix in a Chinese family.
November 2024 in “Forensic Sciences” Understanding the Y chromosome is key to male health, aging, and developing diagnostic tools.
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Male-pattern baldness has a weak link to heart disease and some related health conditions.
140 citations
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October 2008 in “Nature Genetics”
February 2018 in “Medical Hypotheses” Male pattern hair loss may have evolved to promote younger fathers for offspring health and survival, encouraging monogamy and paternal nurturing.
A 32-year-old man with early graying hair shows a unique pattern, suggesting more research is needed on why hair grays early.
7 citations
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April 2000 in “Archives of Pathology & Laboratory Medicine” 53 citations
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May 1996 in “The Journal of Clinical Endocrinology & Metabolism” Different mutations in the 5 alpha-reductase-2 gene were found in affected individuals in the Dominican Republic, suggesting no common ancestry.
30 citations
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January 2021 in “Journal of Clinical Immunology” FOXN1 mutations can cause varying immune and physical issues, with severity influenced by gene activity and possibly other factors.
The AMHR2-482A>G gene change is linked to higher PCOS risk.
October 2019 in “European Journal of Dermatology” The boy's hair and skin color differences are due to a pigmentation disorder.
34 citations
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November 1998 in “Journal of Investigative Dermatology” A common mutation in the hHb6 gene is linked to monilethrix, but other factors may also play a role.
32 citations
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April 1994 in “Journal of the American Academy of Dermatology” High androgen levels and genetic factors likely cause Becker's nevus and related symptoms.
June 2023 in “British Journal of Dermatology” A person with Werner syndrome was initially thought to just have female pattern hair loss.
3 citations
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December 1967 in “Australasian Journal of Dermatology” Becker's Melanosis and Hypertrichosis mainly affects young males, causing brown skin patches and extra hair on one side of the upper body.
4 citations
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January 2009 in “PubMed” A mutation in the KRT86 gene causes hair fragility in a Turkish family.
July 2011 in “British Journal of Dermatology” Hormone treatment caused hair loss, finasteride helped regrowth.
9 citations
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November 1993 in “Journal of The American Academy of Dermatology” Some men can have female pattern baldness without hormonal abnormalities or signs of feminization.
A new syndrome, Teelwani Syndrome, combines features of two rare genetic disorders.
15 citations
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May 2013 in “American Journal of Medical Genetics - Part A” People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.
1 citations
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October 2024 in “JCEM Case Reports” 5α-reductase deficiency can cause ambiguous genitalia and gender dysphoria, treatable with testosterone.
January 2024 in “Australasian journal of dermatology (Print)” A boy's hair turned red because of genetic mutations, not lack of zinc.
June 2025 in “British Journal of Dermatology” A rare skin condition in a boy is likely due to a specific genetic mutation pattern.
September 2024 in “Frontiers in Genetics” A specific genetic marker is linked to male pattern baldness in Han Chinese men.
4 citations
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August 2013 in “Chinese Medical Journal” A specific gene mutation in KRT86 is linked to hair disorder in a Chinese Han family.
December 2025 in “ILDS-DEV” January 2016 in “AACE Clinical Case Reports” Treatment restored normal sexual characteristics and blood condition in a patient with testicular cancer.
February 2024 in “Future science OA” Loss of the Y chromosome and UTY gene activity increases cancer risk in men.