62 citations,
July 1993 in “Journal of Investigative Dermatology” Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.
48 citations,
January 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” Chemokine signaling is important for hair development.
January 2023 in “International journal of biological sciences” COX2 and ATP synthase control the size of hedgehog spines.
Transplanted rat hair follicles grew hair and had increased but not fully restored nerve connections in mice.
14 citations,
April 2000 in “Animal Science/Animal science” Nutrients like vitamins, copper, zinc, and amino acids are crucial for healthy hair and wool growth.
10 citations,
January 2009 in “Elsevier eBooks” Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.
September 2023 in “Pharmaceuticals” Tiny particles improved delivery of hair loss treatments to hair follicles, with lipid-based particles performing best.
January 2004 in “Enshou saisei” Follistatin is important for hair growth and could help treat hair loss.
29 citations,
September 2012 in “Dermatologic Clinics” Hair disorders are caused by a complex mix of biology, genetics, hormones, and environmental factors, affecting hair growth and leading to conditions like alopecia.
25 citations,
December 2008 in “Journal of Dermatological Case Reports” In vivo reflectance confocal microscopy is useful for evaluating hair shaft diseases but needs improvement for deeper hair follicle issues.
48 citations,
May 2015 in “NPJ microgravity” A 3-month stay in space causes skin thinning, disrupts hair growth, and changes muscle-related genes in mice.
6 citations,
January 2023 in “npj regenerative medicine” Transplanting growing hair follicles into scars can help regenerate and improve scar tissue.
99 citations,
June 2005 in “Journal of Cosmetic Dermatology” Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.
34 citations,
December 1991 in “Annals of the New York Academy of Sciences” The conclusion is that small hair follicles cause baldness in macaques, and treatments like antiandrogens and minoxidil can prevent hair loss and promote regrowth.
23 citations,
April 2006 in “Skin Research and Technology” The study concluded that a special imaging technique showed women with hair loss have slower hair growth and a faulty hair replacement cycle.
20 citations,
February 2004 in “Veterinary dermatology” Dog hair grows back in about 14 weeks after being clipped for surgery, and the season doesn't really affect this growth rate.
19 citations,
June 2020 in “Animals” Poor maternal nutrition can lead to fewer wool follicles in Chinese Merino sheep.
17 citations,
January 2006 in “Veterinary Dermatology” Topical melatonin and brushing did not affect hair regrowth in Siberian Huskies.
16 citations,
May 2000 in “Endocrinology” A new gene, mrp4, is found in mice and may play a unique role in hair follicle development in tails and ears.
8 citations,
July 2012 in “Cambridge University Press eBooks” Androgens can both increase body hair and cause scalp hair loss.
7 citations,
January 2010 in “Animal” Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.
120 citations,
November 2014 in “Biological Reviews” The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.
54 citations,
June 1985 in “American Journal of Dermatopathology” Minoxidil helps grow longer, thicker hair in bald scalps of stumptailed macaques, and early treatment is more effective.
46 citations,
July 2007 in “Journal of comparative neurology” Manatee whiskers are specially adapted for touch in water.
46 citations,
May 2004 in “Facial Plastic Surgery Clinics of North America” Creating a natural-looking hairline in hair restoration surgery involves using follicular unit grafts, proper hair placement, and artistic skills to give the illusion of density.
40 citations,
March 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
38 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.
32 citations,
December 1969 in “The Lancet” Children with marasmus have more resting hair follicles and thinner, less pigmented hair, showing long-term malnutrition.
32 citations,
December 2013 in “Biological & Pharmaceutical Bulletin” Rice bran extract can potentially treat hair loss by promoting hair growth and increasing the number of hair follicles.
31 citations,
April 1999 in “Dermatologic Clinics” Nd:YAG laser can reduce hair with multiple treatments, but permanent removal isn't guaranteed.