The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.
May 2023 in “Elsevier eBooks” Scalp micropigmentation is a safe way to hide hair loss and scalp scars by tattooing tiny dots that look like hair follicles.
February 2023 in “Mağallaẗ Tikrīt li-l-ʻulūm al-ṣirfaẗ/Tikrit journal of pure science” Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.
January 2023 in “Pesquisa Veterinária Brasileira” A KRT71 mutation in Hereford cattle in Uruguay causes thin, curly hair and scaly skin.
March 2022 in “Experimental Eye Research” Parental uveitis causes hair loss in offspring of C57BL/6J mice.
November 2021 in “CRC Press eBooks” Hair color is determined by melanin and can be affected by genetic conditions like albinism.
April 2017 in “IOSR journal of dental and medical sciences” Netherton Syndrome is a non-treatable genetic disorder in children causing skin, hair, and allergy issues.
July 2016 in “Indian journal of science and technology” Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.
January 2016 in “Türkiye klinikleri tıp bilimleri dergisi” About 38% of patients at a dermatology clinic had oral lesions, with coated tongue, fissured tongue, and Fordyce granules being most common.
Rat skin develops from a single layer to adult-like skin with hair follicles by day 21.
The 16th-century mummy's hair was well-preserved due to a calcium coating.
January 2003 in “Linchuang pifuke zazhi” Melanin granules can be expelled by exocytosis.
January 2002 in “Proceedings of The Japanese Society of Animal Models for Human Diseases” Keratin2-6g is crucial for hair follicle development, with mutations causing cell degeneration and vacuolation.
January 1995 in “Skin Cancer” The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
February 1990 in “PubMed” Hair follicle cells and skin cells differ in keratinization and other features.
66 citations
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October 2002 in “Human molecular genetics online/Human molecular genetics” A gene mutation in mice causes skin defects and early death.
21 citations
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January 2020 in “Brazilian Journal of Medical and Biological Research” H19 may help cause PCOS by affecting CTGF levels, suggesting a new treatment target.
6 citations
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August 1975 in “Journal of Endocrinology” Cortisol and corticosterone thin mouse skin and regress hair follicles, while testosterone promotes skin and hair development.
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November 2021 in “European journal of medical and health sciences” Growth factors-rich plasma treatments can significantly speed up wound healing and tissue regeneration.
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March 2019 in “Hygiene and Sanitation” Heavy metals can damage skin and hair in mice.
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April 2015 in “The FASEB journal” UVB exposure increases skin proteins for retinoic acid synthesis and shifts their location, possibly affecting skin repair.
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January 1989 Four antibodies were developed to help study hair follicle cell differentiation.
August 2019 in “Journal of Investigative Dermatology” The study found that tight junctions reach the top layer of the skin's stratum granulosum, not just the second top layer as previously thought.
RXR and RAR proteins in skin may help with cell growth, hair growth, and gland function.
73 citations
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November 2001 in “Journal of Investigative Dermatology Symposium Proceedings” Markers help differentiate between apocrine and eccrine sweat glands to identify sweat gland tumors.
May 2021 in “DOAJ (DOAJ: Directory of Open Access Journals)” New technologies may improve topical treatments for hair loss.
January 2006 in “Dianzi xianwei xuebao” Netherton syndrome causes specific skin and hair changes that help in early diagnosis.
August 1969 in “Archives of Dermatology” Regenerated skin after calciphylaxis resembles scar tissue with fewer hairs.
August 1969 in “Archives of Dermatology” After calciphylaxis, rats showed incomplete skin and hair regeneration, resembling scar tissue with fewer hairs.
238 citations
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February 2007 in “Journal of Neuroscience” Ovarian and stress hormones can change GABA A receptors through neurosteroids.