December 2025 in “Russian Journal of Skin and Venereal Diseases” Hair follicles are thinner in alopecia patients, especially in alopecia areata.
23 citations
,
July 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle bulge cells don't help skin regrow after glucocorticoid damage; interfollicular epidermis cells do.
November 2023 in “BMJ case reports” A man in his 30s had patchy hair loss on his leg due to primary follicular mucinosis.
15 citations
,
May 2013 in “American Journal of Medical Genetics - Part A” People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.
2 citations
,
November 2020 in “The American journal of dermatopathology/American journal of dermatopathology” Sweat duct differentiation in trichilemmal cysts is very rare and can be successfully removed with surgery.
April 2019 in “Journal of the Endocrine Society” Bilateral ovarian hyperthecosis is a rare but treatable cause of increased facial hair in postmenopausal women.
October 2018 in “Deep Blue (University of Michigan)” Hair follicle development involves specific cells and genes, crucial for understanding severe skin diseases like harlequin ichthyosis.
75 citations
,
October 2016 in “Genes & Development” Cells in hair follicles help create fat cells in the skin by releasing a protein called Sonic Hedgehog.
13 citations
,
January 2002 in “Biological chemistry” Different conditions affect how hair proteins assemble, and certain mutations can change their structure.
91 citations
,
December 2000 in “The journal of cell biology/The Journal of cell biology” Scientists successfully created mouse hair proteins in the lab, which are stable and similar to natural hair.
April 2018 in “Journal of Investigative Dermatology” Arrector pili muscle regulates hair follicle stem cells, DNA methylation needed for hair cycling, and Wnt/B-catenin signaling starts hair growth.
45 citations
,
January 1986
46 citations
,
April 1977 in “Southern Medical Journal” Minoxidil causes excessive hair growth, but depilatory agent removes it safely and effectively.
338 citations
,
April 2001 in “Current Biology” c-Myc activation in mouse skin increases sebaceous gland growth and affects hair follicle development.
January 2020 in “Journal of Entomology and Zoology Studies” Canine hair follicle stem cells are located in the isthmus/bulge region of the hair follicle.
60 citations
,
March 2009 in “Dermato-Endocrinology” The exact molecular mechanisms of sebaceous gland function are still unclear.
October 1991 in “Archives of Dermatology” The woman has a skin condition involving nodules, scars, and hair loss.
January 1995 in “Revista de arqueología” 1 alpha,25-dihydroxy-vitamin D3 and calcipotriol speed up cell differentiation in hair follicles.
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.
1 citations
,
September 2003 in “CRC Press eBooks” Hair is important for social and sexual communication in humans.
220 citations
,
June 2013 in “The Journal of Pathology” Lichen planopilaris may be an autoimmune disease causing hair loss due to immune system issues in hair follicles.
April 2017 in “Journal of Investigative Dermatology” A virus protein can activate a pathway that may lead to abnormal hair follicle development.
13 citations
,
April 1964 in “PubMed” Phosphatide distribution in mouse skin remains consistent in both normal and cancerous growths.
50 citations
,
March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
2 citations
,
May 2012 in “Acta pharmaceutica sinica B” The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.
January 2020 in “International journal of scientific research” Dermoscopy shows that varying hair shaft thickness and single hair follicles are main signs of male pattern baldness, especially in the fronto-temporal region.
13 citations
,
June 2018 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” Laminin-511 may contribute to psoriasis by affecting skin cell growth and survival.
13 citations
,
September 1997 in “Archives of Dermatology” The boy likely has a fungal infection causing hair loss.
56 citations
,
January 1970 in “Cell and Tissue Research”
7 citations
,
August 2022 in “Nature communications” A specific group of slow-growing stem cells marked by Thy1 is crucial for skin maintenance and healing in mice.