January 2014 in “Journal of the Korean Society of Design Culture” The study confirmed that changes in hair structure in women with hair loss conditions matched what is taught in beauty college trichology courses.
Pangolin scales evolved for protection, hardening with age, due to keratin gene diversification.
17 citations
,
January 2013 in “Journal of Cutaneous Pathology” The onychodermis helps anchor the nail bed and may aid in nail formation.
26 citations
,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
September 1997 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” The document concludes that treatments like oral anti-androgens, minoxidil, and topical spironolactone can be effective for hair loss in men and women.
September 1997 in “Journal of The European Academy of Dermatology and Venereology” Topical spironolactone effectively treats hair loss in women.
85 citations
,
October 2007 in “International Journal of Dermatology” Curly hair shape is due to uneven growth patterns in the hair follicle.
3 citations
,
July 2019 in “Fibers And Polymers/Fibers and polymers” 82 citations
,
January 2006 in “International review of cytology” Vertebrate skin evolved to be more specialized and complex, especially in land animals.
18 citations
,
January 2018 in “Advances in experimental medicine and biology” Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.
12 citations
,
February 2006 in “Lipids” Hair texture changes with age due to varying levels of lipids.
A six-year-old girl with extra hair on her elbows was treated with hair removal methods.
August 2024 in “Archives of Dermatological Research” CHI3L1 and CXCL5 proteins help promote hair growth.
24 citations
,
March 2008 in “Neuroscience Research” Cat paws have complex touch sensors for detailed sensory processing.
44 citations
,
October 1990 in “Archives of Dermatological Research” The connective tissue around hair follicles changes structure throughout the hair cycle.
2 citations
,
January 2007 in “Actas Dermo-Sifiliográficas” Two cases of hairy elbows syndrome were described, with normal skin texture and symmetrical hair growth.
3 citations
,
June 2020 in “Developmental Cell” Feather patterns are influenced by enhancers and chromatin looping, and the structure of protein complexes important for hair growth has been detailed.
15 citations
,
December 2020 in “International journal of molecular sciences” Epidermal stem cells create and maintain skin structures like hair and nails through specific signaling pathways and vary by location and function.
36 citations
,
January 2004 in “European journal of cell biology” Without keratin 10, there's more growth and development of oil-producing skin cells.
January 2024 in “Medycyna Weterynaryjna” Horse breed significantly affects skin and hair thickness.
April 2021 in “The journal of investigative dermatology/Journal of investigative dermatology” CTCF protein is essential for skin and hair follicle development in mice.
28 citations
,
September 2013 in “European Journal of Histochemistry” Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.
5 citations
,
April 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” Aging skin shows thinner layers, fewer hair follicles, and new biomarkers like increased space between cells and smaller sebaceous glands.
October 1990 in “Spectrum Research Repository (Concordia University)” July 2024 in “Journal of Investigative Dermatology”
51 citations
,
November 2010 in “Dermatologic Surgery” The research provides specific measurements for hair follicles that can improve hair transplant and regeneration techniques.
119 citations
,
January 2000 in “British Journal of Dermatology” Different parts of the nail express different keratins, showing unique patterns of differentiation.
September 2023 in “UCrea (University of Cantabria)” Nails are essential for fingertip regeneration.
7 citations
,
December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
20 citations
,
December 2010 in “Journal of Morphology” Lizard claws have hair-like keratins similar to those in mammals.