49 citations
,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
96 citations
,
December 1995 in “Journal of Investigative Dermatology”
March 2024 in “Tissue and cell/Tissue & cell” Telomerase-positive cells are mainly in the bulb matrix and outer root sheath of hair follicles.
107 citations
,
December 2013 in “International Journal of Dermatology” The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.
The document concludes that Loose Anagen Hair Syndrome is a benign condition where hair is thin and easily pulled out, often improving with age.
14 citations
,
January 2009 in “Experimental Dermatology” Hair sheds gradually from the follicle, with readiness to shed indicated by less attachment material.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
August 2007 in “Microscopy and Microanalysis” Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.
September 2023 in “Journal of Natural Fibers” Drying hair with a microfiber towel better maintains hair strength and structure than using a cotton towel or blow-drier.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Researchers made a detailed map of gene activity for different parts of human hair follicles to help create targeted hair disorder treatments.
77 citations
,
July 2020 in “Cell” Muscles and nerves that cause goosebumps also help control hair growth.
48 citations
,
May 2008 in “Drug Discovery Today: Disease Mechanisms” Hair follicles offer promising targets for delivering drugs to treat hair and skin conditions.
July 2023 in “International journal of physiology” Hypertrichosis lanuginosa causes excessive fine hair growth, often linked to genetics or cancer, with limited treatment options.
December 1990 in “PubMed” Different glycoconjugates are present in the outer and inner root sheaths of human hair follicles.
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.
5 citations
,
February 1998 in “Polymer” Human hair keratin has a 40% α-helix structure that changes to a random coil in 8 M urea.
67 citations
,
February 1994 in “Developmental dynamics” Specific proteins and molecules play key roles in the development of human hair follicles.
1 citations
,
March 2017 in “Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego” Domestic cat hair varies in thickness and length, with guard hairs being longest and thickest, and all hair types mainly contain keratin.
Genetic factors might cause fibrosing alopecia linked to hair shaft abnormalities.
27 citations
,
May 2011 in “Journal of Investigative Dermatology” TCHHL1 is a protein important for hair growth, found in hair follicles.
October 2017 in “International Supply Chain Technology Journal” Hair care involves both promoting growth and preventing loss.
7 citations
,
December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
12 citations
,
September 1990 in “The Anatomical Record” Human anagen hair follicles have unique carbohydrate patterns during keratinization.
May 2013 in “International journal of innovative research and development” The document concludes that understanding hair's chemical makeup is key to creating effective hair growth products that also improve social confidence.
January 2022 in “Journal of St. Marianna University” Substances from human hair cells can affect hair loss-related genes, potentially leading to new treatments for baldness.
7 citations
,
January 2012 in “International Journal of Trichology” A man with Woolly Hair Syndrome had very curly, fragile hair, and doctors used a special scalp examination to diagnose him without invasive tests.
28 citations
,
March 2014 in “Biological reviews/Biological reviews of the Cambridge Philosophical Society” The document concludes that hair curvature can be explained by the growth patterns caused by the shape and separation of cells in the hair follicle and is affected by specific molecular pathways.
June 2024 in “International Journal of Cosmetic Science” Plant oils like coconut, camellia, and safflower can penetrate hair, making it stronger and softer.
37 citations
,
November 2019 in “Journal of Microbiology and Biotechnology” Loliolide can boost hair growth by activating specific cell pathways.