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June 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Humans have ancient DNA from Neanderthals and other lineages in their chromosomes, affecting traits and evolution.
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March 1997 in “Pediatric Dermatology” A rare case of trichothiodystrophy was found with autism, seizures, and mental retardation.
January 2025 in “Diagnostics” Women with PCOS have distinct retinal changes compared to healthy women.
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January 2016 in “Medicinski glasnik Specijalne bolnice za bolesti štitaste žlezde i bolesti metabolizma” Most 46XX CAH patients have female identity, but a few identify as male and may need treatment and surgery.
January 2007 in “Journal of the American Academy of Dermatology” A 73-year-old man's grey-white hair turned dark brown after eczema treatment.
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February 2008 in “PubMed” Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
January 2023 in “Brazilian Journals Editora eBooks” 97 citations
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March 2006 in “Journal of Investigative Dermatology” Mutations in the DSG4 gene cause a severe form of brittle hair and skin issues.
4 citations
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April 2019 in “JAAD Case Reports” DPR can cause skin, hair, and nail issues, sometimes appearing later in life.
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October 2013 in “Journal of Human Evolution/Journal of human evolution” Forensic DNA Phenotyping can help predict physical traits from crime scene DNA to identify suspects.
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology”
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September 2012 in “Australasian Journal of Dermatology” Chemotherapy can cause hair changes similar to alopecia areata, which might lead to misdiagnosis.
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March 2010 in “Journal of plastic, reconstructive & aesthetic surgery” Laser treatment can fix skin color issues after syndactyly surgery.
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April 2014 in “PLoS ONE” A rare gene variant causes hair and nail issues in a family.
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July 2004 in “Pediatric dermatology” A new severe form of monilethrix syndrome includes hair loss, scalp itching, cataracts, and distinct facial features.
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January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Increased PHGDH expression causes early melanin buildup in hair follicles.
January 2000 in “The Mouseion at the JAXlibrary (Jackson Laboratory)” The lanceolate hair-J mutation in mice helps understand human hair disorders like Netherton's syndrome.
September 2021 in “Physiology News” The Society's journals now have a policy to make colors in their content accessible to people with color blindness.
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June 1999 in “Veterinary Dermatology” Two cows had a rare hair disorder causing hair loss but were otherwise healthy.
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August 2023 in “Nature Communications” Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.
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October 2023 in “Dermatology practical & conceptual” More research is needed to understand hair and scalp disorders in people with skin of color.
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August 2017 in “Scientific Reports” Darker hair may lead to higher cortisol readings, suggesting a need to adjust for hair color in studies.
20 citations
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December 1995 in “Veterinary Dermatology” Yorkshire Terriers with Colour Dilution Alopecia have reduced melanin and hair structure issues.
"Bider" markings in Dun Mongolian horses are caused by a complex network of genes and pathways.
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December 1992 in “The Journal of Steroid Biochemistry and Molecular Biology” Affected males are born with ambiguous genitalia, raised as females, but develop male traits at puberty due to enzyme deficiency.
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May 1979 in “International Journal of Dermatology” Trichostasis spinulosa mainly affects the nose, with many tiny hairs in one follicle, possibly influenced by hormones and sunlight.
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October 2006 in “The International Journal of Biochemistry & Cell Biology” Melanocytes are crucial for skin pigmentation and can affect conditions like melanoma, vitiligo, and albinism, as well as hair color and hearing.
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November 2021 in “Molecular Medicine Reports” Combining narrow-band ultraviolet B light and stem cell transplantation helps repigmentation in vitiligo by maintaining calcium balance in mice.
February 2026 in “Journal of Cutaneous and Aesthetic Surgery” Ectopic acanthosis nigricans can occur at surgical sites due to skin graft mismatches.
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May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.