17 citations
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June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
September 2022 in “JAAD case reports” The man has a genetic skin condition called pachyonychia congenita.
January 2002 in “Linchuang pifuke zazhi” A young woman had a rare scalp tumor usually found in older women.
3 citations
,
November 2022 in “Frontiers in molecular biosciences” Plasmalogens activate a channel in cells that may stimulate hair growth.
19 citations
,
July 1994 in “International Journal of Dermatology” A 9-year-old boy had a calcium deposit nodule on his earlobe.
82 citations
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January 2006 in “International review of cytology” Vertebrate skin evolved to be more specialized and complex, especially in land animals.
5 citations
,
February 2015 in “Ophthalmic plastic and reconstructive surgery” Two new types of eyelid cysts were identified, each with different treatment challenges.
6 citations
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October 1998 in “PubMed” Antifungal treatment can improve severe skin infections with cutaneous horns.
January 2017 in “대한미용학회지” The cuticle layer in hair follicles thickens during keratinization due to incomplete cytosol loss.
1 citations
,
December 2021 in “Kathmandu University medical journal” Adult earlobe can have a benign cyst that is usually removed by surgery.
19 citations
,
April 2013 in “Drug Development and Industrial Pharmacy” Hair follicles are important for the absorption of certain drugs into the skin.
2 citations
,
May 2022 in “International journal of trichology” Plica neuropathica is a tangled hair condition that may be caused by hair damage or psychiatric issues and is treated by cutting the hair and addressing mental health.
April 2018 in “Journal of Investigative Dermatology” The keratin network in mouse skin changes during cornification and affects the skin's protective barrier.
68 citations
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February 2011 in “European Journal of Pharmaceutics and Biopharmaceutics” Keratin films from human hair can potentially replace human nail plates for drug testing.
8 citations
,
September 2016 in “Journal of the American Academy of Dermatology” It's important to tell the difference between hair casts, pseudocasts, and nits.
72 citations
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December 2018 in “Journal of Experimental Zoology Part B Molecular and Developmental Evolution” Corneous beta-proteins evolved uniquely in reptiles and birds, forming scales, claws, beaks, and feathers.
81 citations
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June 2012 in “European journal of human genetics” Inherited ichthyoses cause widespread skin scaling and thickening due to gene mutations.
Pangolin scales evolved for protection, hardening with age, due to keratin gene diversification.
January 2015 in “Turkiye Klinikleri Journal of Dermatology” Peripilar keratin casts are a helpful sign for diagnosing traction alopecia.
17 citations
,
September 2010 in “Pediatric dermatology” A 15-year-old with KID syndrome developed a rare skin condition called PEHFN.
14 citations
,
April 1976 in “Journal of Cutaneous Pathology” A calcified nodule on a boy's face came from hair follicles and expelled calcium through the skin.
5 citations
,
November 2001 in “Auris Nasus Larynx” Accurate diagnosis of Winer's dilated pore in the ear is crucial to avoid unnecessary aggressive treatment.
2 citations
,
February 2009 in “Clinical and Experimental Dermatology” A man had rare skin tumors with bone formation and cholesterol deposits.
January 2022 in “Clinical Cases in Dermatology” A woman's scalp nodule was a common, harmless pilar cyst, treated by surgical removal.
18 citations
,
April 2002 in “Journal of cutaneous pathology” Tiny infundibular cysts are the main lesions in chloracne, not comedones.
43 citations
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July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
November 2022 in “JAAD case reports” A man with skin and hair symptoms improved partially with specific treatment.
2 citations
,
January 2017 in “Indian dermatology online journal” A woman had a rare infection of both white piedra and head lice, which improved after 10 weeks of antifungal treatment.
5 citations
,
October 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” The research linked PLCD1 gene variants to the development of trichilemmal cysts.
2 citations
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May 1991 in “PubMed” Nevus comedonicus is a rare skin condition causing dark bumps, treatable with retinoic acid or surgery.