June 2026 in “Journal of Korean Medicine” A 51-year-old male developed localized acquired hypertrichosis, characterized by excessive hair growth, in areas subjected to repeated cupping therapy over approximately two years. The hair growth was confined to the specific sites on the left posterior neck and upper trapezius region where cupping was applied once or twice weekly, with no similar growth in surrounding areas. This case suggests that long-term repeated cupping therapy may lead to unexpected localized hair growth, highlighting the need for clinicians to consider potential cutaneous reactions when using this treatment.
July 2020 in “Experimental Dermatology” Aging causes hair thinning in women due to changes in the scalp environment.
39 citations
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February 1990 in “The journal of cell biology/The Journal of cell biology” Trichohyalin, a hair follicle protein, has a part with repeating patterns of 23 amino acids.
January 1990 in “The Nishinihon Journal of Dermatology” Follicular structures help differentiate keratoacanthoma from squamous cell carcinoma.
October 1967 in “Archives of Dermatology” A 42-year-old woman had a scalp lesion that didn't cause hair loss and showed specific changes under a microscope.
2 citations
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April 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The skin's basement membrane is specially designed to support different types of connections between skin layers and hair follicles.
6 citations
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January 2009 in “Elsevier eBooks” The skin has multiple layers and cells, serves as a protective barrier, helps regulate temperature, enables sensation, affects appearance, and is involved in vitamin D synthesis.
June 2006 in “Experimental dermatology” Hair follicle bulge cells are important for hair survival and help heal the skin after injury, which might be relevant for understanding hidradenitis suppurativa.
22 citations
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September 2000 in “Journal of Investigative Dermatology” μ-Crystallin may help hair growth by affecting thyroid hormone levels in mouse hair follicles.
January 2022 in “The Pan African medical journal” Hypertrichosis causes excessive hair growth and needs psychological support due to its impact on self-esteem.
1 citations
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December 2018 in “Journal of Cosmetic Dermatology” Men with thinner hair from genetic hair loss may be more likely to have an enlarged prostate.
13 citations
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March 1997 in “Research in Veterinary Science/Research in veterinary science” Epithelial proliferation and hyperkeratosis are linked to gastric ulcers in pigs.
106 citations
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April 1986 in “British Journal of Dermatology” Dermal papilla cells from human hair follicles form unique structures and don't live as long as other skin cells in lab conditions.
356 citations
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December 1986 in “The journal of cell biology/The Journal of cell biology” Hair and nail cells share similar proteins, indicating a common differentiation pathway.
4 citations
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August 1991 in “The Journal of Dermatology” The tumor on the man's nose was a rare type called pedunculated follicular hamartoma.
25 citations
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April 1949 in “The journal of experimental zoology” Testosterone applied to rabbit skin increases skin cell growth and changes skin structure.
9 citations
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January 2007 in “Endocrine Practice” A woman's male-like symptoms and high testosterone were due to ovarian hilus-cell hyperplasia, which improved after surgery.
October 2022 in “Boletín médico del Hospital infantil de México/Boletín médico del Hospital Infantil de México” The patient has a rare skin condition that shows features of two known disorders.
28 citations
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September 1995 in “Biochemistry and Cell Biology” Merkel cells are more densely found in hairless skin areas like palms and soles.
1 citations
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June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
35 citations
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January 2000 in “Journal of comparative neurology” Rat vibrissae have sensory terminals with specific structures that help detect hair movements.
36 citations
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January 1994 in “Cell and Tissue Research” 27 citations
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February 2003 in “European Journal Of Oral Sciences” SVpgC2a cells show abnormal growth and keratin changes, modeling early cancer development.
11 citations
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January 2015 in “JOURNAL OF HEALTH SCIENCE” A 12-year-old boy's rare skin condition improved with topical treatments and may resolve by puberty.
March 2021 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Fat tissue around hair follicles releases a growth factor that helps hair grow and develop color.
21 citations
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June 2003 in “Journal of Morphology” Monotreme and marsupial skin proteins show primitive features and species-specific differences compared to placental mammals.
January 2024 in “ACTA SCIENTIAE VETERINARIAE” An epidermoid cyst in a dog's mammary gland is rare and benign.
248 citations
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April 1988 in “Differentiation” Human and bovine hair follicles have distinct cytokeratins specific to hair-forming cells.
August 1994 in “Journal of dermatological science” Different substances affect hair and skin cell growth in various ways, with some promoting and others inhibiting cell proliferation.