195 citations,
January 2008 in “Photochemistry and Photobiology” Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.
194 citations,
March 2003 in “American Journal of Pathology” Stress stops hair growth in mice by causing early hair growth phase end and harmful inflammation through a specific nerve-related pathway.
194 citations,
May 2000 in “Journal of Investigative Dermatology” The hedgehog signaling pathway is crucial for hair growth but not for the initial creation of hair follicles.
191 citations,
November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
168 citations,
August 2000 in “American Journal of Pathology” Fibromodulin might help reduce scarring if increased in adult wounds like in fetal skin that heals without scars.
165 citations,
July 2007 in “European Journal of Cell Biology” Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.
161 citations,
July 2003 in “ACM Transactions on Graphics” Researchers developed a new model for more realistic computer graphics rendering of hair by considering how light scatters on hair fibers.
160 citations,
June 2012 in “Journal of Cellular and Molecular Medicine” Telocytes might help with skin repair and regeneration.
Dermatoscopy and videodermatoscopy are useful for diagnosing and monitoring various skin, hair, and nail conditions.
157 citations,
December 2003 in “Development” AXR3 and SHY2 genes control the growth and timing of root hair development in plants.
155 citations,
April 2006 in “The American Journal of Medicine” Women with PCOS have heart-related issues not because of obesity, but due to insulin resistance and low adiponectin levels.
153 citations,
August 2002 in “Dermatologic Surgery” Follicular Unit Extraction (FUE) is a less invasive hair transplant method with minimal scarring, suitable for about 60% of patients, especially those needing fewer grafts and quicker recovery.
152 citations,
February 2004 in “Current anthropology” Humans lost body hair relatively recently in evolution.
144 citations,
August 2019 in “Cells” The WNT signaling pathway is important in many diseases and targeting it could offer new treatments.
144 citations,
March 2013 in “Circulation Research” K_ATP channel gene mutations are linked to heart diseases, but more research is needed to understand the connection and treatment potential.
143 citations,
November 2008 in “Experimental gerontology” Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.
143 citations,
August 1991 in “Endocrinology” Androgens, like testosterone, are crucial for early testicular descent in rats.
142 citations,
October 2020 in “Journal of neurophysiology” Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.
141 citations,
December 2005 in “International journal of pharmaceutics” Hair follicles may soon be used more for targeted and systemic drug delivery.
140 citations,
January 2018 in “Journal of Controlled Release” Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.
140 citations,
May 2013 in “The journal of immunology/The Journal of immunology” Memory regulatory T cells need IL-7, not IL-2, to stay in peripheral tissues.
139 citations,
July 1991 in “Journal of The American Academy of Dermatology” Understanding hair follicle anatomy helps diagnose hair disorders.
137 citations,
March 2006 in “Cns Drug Reviews” Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.
136 citations,
May 2019 in “Cells” Stem cell therapy, particularly using certain types of cells, shows promise for treating hair loss by stimulating hair growth and development, but more extensive trials are needed to confirm these findings.
135 citations,
January 2014 in “Seminars in Cell & Developmental Biology” Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.
134 citations,
August 2012 in “International Journal of Oral and Maxillofacial Surgery” Facial feminization surgery is effective in helping transgender women appear more feminine and has high patient satisfaction.
131 citations,
March 2004 in “The American journal of pathology” Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.
130 citations,
September 2018 in “Cell Reports” Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.
127 citations,
May 2008 in “Journal of Investigative Dermatology” Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
124 citations,
March 2012 in “JAMA” Testosterone's muscle-building effects do not require its conversion to DHT.