520 citations,
February 2001 in “Journal of Clinical Investigation” VEGF helps hair grow and determines follicle size by increasing blood vessel growth.
501 citations,
October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
499 citations,
September 2011 in “Cell” Fat-related cells are important for initiating hair growth.
479 citations,
January 2005 in “BioEssays” Hair follicle development is controlled by interactions between skin tissues and specific molecular signals.
450 citations,
January 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color is determined by melanin produced and transferred in hair follicles.
417 citations,
September 2005 in “PLoS biology” Understanding gene expression in hair follicles can reveal insights into hair growth and disorders.
417 citations,
March 1991 in “American Journal of Psychiatry” Most adult chronic hair pullers are women who started in their early teens, often have other mental health issues, and may pull hair due to underlying psychiatric conditions.
414 citations,
August 2005 in “Nature” Activating TERT in mice skin boosts hair growth by waking up hair follicle stem cells.
397 citations,
February 2004 in “British Journal of Dermatology” Minoxidil boosts hair growth by opening potassium channels and increasing cell activity.
396 citations,
May 2011 in “Cell stem cell” Nerve signals are crucial for hair follicle stem cells to become skin stem cells and help in wound healing.
375 citations,
February 2006 in “Journal of Cell Science” The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.
370 citations,
September 1999 in “The New England Journal of Medicine” Finasteride and minoxidil are effective for hair loss, but continued research is needed for better treatments.
356 citations,
December 1986 in “The journal of cell biology/The Journal of cell biology” Hair and nail cells share similar proteins, indicating a common differentiation pathway.
330 citations,
December 2009 in “Cell stem cell” SKPs are similar to adult skin stem cells and could help in skin repair and hair growth.
321 citations,
January 2012 in “Cell stem cell” TGF-β2 helps activate hair follicle stem cells by counteracting BMP signals.
321 citations,
December 2009 in “Journal of Dermatological Science” Dermal cells are key in controlling hair growth and could potentially be used in hair loss treatments, but more research is needed to improve hair regeneration methods.
316 citations,
June 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.
314 citations,
April 2010 in “Developmental Cell” β-catenin in the dermal papilla is crucial for normal hair growth and repair.
309 citations,
October 2007 in “Biomaterials” Keratin from human hair helps nerves heal faster.
305 citations,
June 2012 in “Nature” Hair regeneration needs dynamic cell behavior and mesenchyme presence for stem cell activation.
304 citations,
July 2006 in “Journal of The American Academy of Dermatology” Videodermoscopy improves diagnosis of hair and scalp disorders and may reduce scalp biopsies.
303 citations,
August 1971 in “The American Journal of Medicine” Melanocytes are destroyed by factors needed for melanin production, causing vitiligo and gray hair.
300 citations,
August 2012 in “Seminars in Cell & Developmental Biology” The conclusion is that certain cell interactions and signals are crucial for hair growth and regeneration.
291 citations,
October 2005 in “Proceedings of the National Academy of Sciences of the United States of America” Adult stem cells from rat whisker follicles can regenerate hair follicles and sebaceous glands.
286 citations,
June 2012 in “Nature Immunology” Hair follicles help attract immune cells to the skin during stress.
277 citations,
February 2013 in “Science Signaling” Mitochondrial reactive oxygen species are essential for skin and hair development.
277 citations,
June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.
271 citations,
March 1999 in “Developmental biology” The research shows that a gene called Wnt3 affects hair growth and structure, causing short hair and balding when overactive.
270 citations,
March 2012 in “Dermatologic Surgery” Platelet-rich plasma can potentially promote hair growth by stimulating cell growth and increasing certain proteins.
260 citations,
June 2011 in “Cell” Wnt signaling is crucial for pigmented hair regeneration by controlling stem cell activation and differentiation.