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.
Different hair growth phases affect how follicles respond to X-rays, and hormones like testosterone and dihydrotestosterone play a key role in baldness; transplanted hair can grow on bald scalp areas.
94 citations,
July 2003 in “Journal of biological chemistry/The Journal of biological chemistry” EGF controls hair growth by regulating hair follicles' growth phases.
16 citations,
October 2003 in “Journal of The American Academy of Dermatology” A boy had unusual synchronized hair growth with short active growth phases, not fitting known hair disorders.
38 citations,
October 1988 in “Clinics in Dermatology” Hormones, nutrition, and seasonal changes regulate hair growth cycles, with androgens extending growth phases and factors like aging and malnutrition affecting hair loss and thinning.
2 citations,
December 2023 in “Royal Society of Chemistry eBooks” Hair is a complex organ, and understanding its detailed structure and growth phases is crucial for analyzing substances within it.
July 2023 in “Frontiers in veterinary science” Certain long non-coding RNAs are important for controlling hair growth cycles in sheep.
October 2012 in “Ain-Shams Journal of Surgery” The direction of hair implants doesn't affect the final direction of hair growth in baldness treatments.
72 citations,
February 2011 in “American Journal of Biological Anthropology” The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
6 citations,
April 1996 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.
52 citations,
May 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” Parathyroid hormone-related protein helps control hair growth phases in mice.
September 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Mouse skin glands need healthy nerves to grow properly during hair growth phases.
86 citations,
August 2000 in “Pigment cell research” Melanocyte activity in hair follicles is linked to the hair growth cycle, being active in growth phases and inactive in rest phases.
7 citations,
July 2008 in “Experimental Dermatology” The study concluded that a protein important for hair strength is regulated by certain molecular processes and is affected by growth phases.
101 citations,
January 1997 in “Journal of Investigative Dermatology Symposium Proceedings” Nerves and chemicals in the body can affect hair growth and loss.
36 citations,
December 2009 in “Skin pharmacology and physiology” Helium-neon laser treatment can stimulate hair growth in mice.
2 citations,
January 2014 in “Hair therapy & transplantation” New treatments for hair growth disorders are needed due to limited current options and complex hair follicle biology.
9 citations,
January 2015 in “Fundamental & clinical pharmacology” Cyclosporine A helps hair grow by blocking a process that would otherwise cause hair cells to die.
4 citations,
August 2019 in “General and Comparative Endocrinology” Male yak hair growth is influenced by DHT synthesis, which is promoted by 5α-red1 and AR during growth phases, while E2 may inhibit growth through ERα.
3 citations,
January 2023 in “International journal of molecular sciences” Certain miRNAs play a key role in the growth of cashmere by affecting hair follicle development and regeneration.
January 2024 in “Biomedical journal of scientific & technical research” Vitamins A, B7, C, D, and E are essential for healthy hair growth and preventing damage.
April 2017 in “Journal of Investigative Dermatology” The BMP/Smads pathway and Id2 gene control hair follicle stem cells, affecting their rest and growth phases.
116 citations,
September 2001 in “Journal of The American Academy of Dermatology” Hair loss occurs due to fewer papillary cells, smaller follicles, and shorter growth phases.
54 citations,
April 2019 in “Journal of cellular physiology” miR-218-5p helps skin and hair growth by targeting SFRP2 and activating a specific signaling pathway.
50 citations,
August 1999 in “Experimental dermatology” The control system for hair growth cycles is not well understood and needs more research.
25 citations,
July 2008 in “British Journal of Dermatology” CD10 and CD34 levels change during hair development and different hair growth stages, which could be important for hair regeneration treatments.
23 citations,
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” NF-κB is crucial for different stages and types of hair growth in mice.
22 citations,
February 2002 in “Journal of theoretical biology” The model showed that randomness accurately describes individual hair growth cycles and that synchronization can cause large fluctuations not seen in humans.
20 citations,
January 1995 in “Cells tissues organs” Changing light periods synchronized wool growth cycles in sheep.
15 citations,
September 2012 in “PTR. Phytotherapy research/Phytotherapy research” Ginsenosides Rb₁ and Rd may help prevent hair loss by promoting hair cell growth.