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January 2012 in “International journal of trichology” Trichostasis spinulosa can be diagnosed with a simple skin biopsy and treated with specific gels, but lesions may return after stopping treatment.
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January 1989 Human papilla cells from hair follicles show unique growth behaviors but don't induce hair growth in vitro.
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August 2019 in “Cell Proliferation” Keratinocytes help keep hair follicle cells and skin cells separate in 3D cultures, which is important for hair growth research.
January 2009 in “Rossiiskii Zhurnal Kozhnykh i Venericheskikh Boleznei” 20 citations
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September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
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May 1989 in “PubMed” Psoriasis on the scalp causes smaller oil glands and thinner hair but doesn't lead to hair loss.
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November 2010 in “Pigment cell & melanoma research” We need more research on human hair follicle pigmentation, not just mouse models.
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July 2009 in “Development” Sox2-positive cells determine specific hair follicle types in mammals.
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January 1956 in “Journal of Investigative Dermatology” 18 citations
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April 2002 in “Journal of cutaneous pathology” Tiny infundibular cysts are the main lesions in chloracne, not comedones.
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February 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Loss of Fz6 disrupts hair follicle and associated structures' orientation.
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April 2004 in “PubMed” Sex steroid receptors are found in specific skin cells, affecting skin and hair functions.
16 citations
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June 2015 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzyme DHHC13 is essential for healthy hair and skin, and its deficiency leads to hair loss and skin problems.
December 2025 in “TURKDERM” Facial trichostasis spinulosa is a chronic condition with significant cosmetic impact, especially in young women.
77 citations
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April 2016 in “Science Advances” Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.
April 2017 in “Journal of Investigative Dermatology” Triptolide effectively and safely reduces actinic keratosis lesions in mice.
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January 1999 in “Journal of cutaneous laser therapy” Diode laser effectively treats pseudofolliculitis barbae.
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August 2024 in “Transgenic Research” Activated β-catenin affects hair growth and skin thickness, and changes are reversible.
November 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” Researchers identified new cell types and genes in early hair follicle development.
November 2022 in “JAAD case reports” A man with skin and hair symptoms improved partially with specific treatment.
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February 2008 in “Journal of Investigative Dermatology” January 2003 in “Chinese Journal of Reparative and Reconstructive Surgery” Dermal papilla cells can help form hair follicles and produce hair.
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August 1990 in “PubMed” Keratins K1 and K10 are found in the inner root sheath and cuticle of human hair follicles.
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June 2023 in “Cureus” Pilomatricomas should be considered to avoid misdiagnosis in children with unusual skin tumors.
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September 2005 in “Australasian Journal of Dermatology” A man with scalp and neck skin issues improved after a year of oral isotretinoin.
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November 2011 in “Turkish Journal of Dermatology” Biotin treatment improved hair and skin issues in a child with biotinidase deficiency.
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April 2008 in “Archives of Dermatological Research” Encapsulated human hair cells can substitute for natural hair cells to grow hair.
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January 1999 in “International Journal of Dermatology” Pityriasis rubra pilaris is a rare skin disorder with reddish-orange patches and thickened skin, needing better treatment understanding.
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March 2020 in “International journal of reproduction, contraception, obstetrics and gynecology” The study concluded that the most common skin problems in women with PCOS are excess hair, acne, oily skin, hair loss, dark skin patches, and skin tags.