May 2017 in “Journal of the American Academy of Dermatology” Monilethrix is a rare, inherited condition causing fragile hair and hair loss, with no cure but some treatments may help.
12 citations,
March 1981 in “International Journal of Dermatology” External factors like certain shampoos, bacterial infections, and parasites might cause hair defects similar to genetic conditions.
2 citations,
January 2017 in “PubMed” Hair casts are harmless but can be mistaken for head lice.
132 citations,
September 2009 in “Experimental Dermatology” A reliable system was developed to distinguish hair growth stages, aiding in identifying hair growth promoters or inhibitors.
92 citations,
June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
29 citations,
March 2015 in “Journal of Investigative Dermatology” Cyclosporine A promotes hair growth and prolongs the active growth phase in human hair follicles, but may work differently than in rodents.
14 citations,
July 2017 in “Fitoterapia” Oleanolic acid promotes hair growth by increasing cell proliferation through the Wnt/β-catenin pathway.
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.
4 citations,
March 2019 in “Experimental Biology and Medicine” Exposure to 50 Hz electromagnetic fields may help mice grow hair faster.
4 citations,
August 2013 in “Pediatric dermatology” Hair casts can be treated with physical removal and special shampoos.
3 citations,
June 2017 in “Journal of Biomaterials Applications” Keratin extract from human hair was found to promote hair growth in mice.
2 citations,
October 2018 in “Skin appendage disorders” A boy's hair that was frizzy and hard to comb returned to normal after 9 months, possibly due to genetic factors.
October 2024 in “Scientific Reports” OXTR agonists may promote hair growth and be effective for treating hair loss.
July 2024 in “Journal of Investigative Dermatology” Ashwagandha nanoparticles help hair grow by increasing a growth factor.
The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.
April 2023 in “Journal of Investigative Dermatology” Blocking casein kinase 1 in skin cells can help melanocyte precursors move better, potentially helping with conditions like vitiligo or gray hair.
April 2017 in “Journal of dermatological science” Researchers created a cell model to study hair growth and test hair-growth drugs.
January 2013 in “Italian journal of anatomy and embryology” Platelet Rich Plasma can help human hair grow in a lab setting.
March 2005 in “Journal of the American Academy of Dermatology” Adding amino acids to damaged hair can improve its strength and appearance.
August 2022 in “International Journal of Molecular Sciences” DNA methylation controls lncRNA2919, which negatively affects hair growth.
1113 citations,
August 1999 in “The New England Journal of Medicine” Hair follicle biology advancements may lead to better hair growth disorder treatments.
108 citations,
October 2003 in “Journal of biological chemistry/The Journal of biological chemistry” Trichohyalin makes hair follicles stronger.
73 citations,
March 2009 in “Seminars in Cutaneous Medicine and Surgery” The document concludes that accurate diagnosis of hair disorders is crucial and requires a range of diagnostic methods.
71 citations,
December 1987 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Hair analysis is not a precise way to measure livestock's mineral status but can help when used with other methods.
45 citations,
November 2017 in “Biomaterials” Researchers found a new way to create hair-growing structures in the lab that can grow hair when put into mice.
39 citations,
November 2007 in “Experimental dermatology” Human hair follicles contain a complex network of prostanoid receptors that may influence hair growth.
36 citations,
November 2009 in “Journal of Investigative Dermatology” Prolactin may affect hair growth differently based on gender and scalp area.
31 citations,
December 2012 in “British Journal of Dermatology” Korean women's hair thins, weakens, and greys with age, with mineral and sterol changes.
25 citations,
May 1994 in “Journal of Investigative Dermatology” Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.
24 citations,
August 2011 in “Experimental Dermatology” The flap assay grows the most natural hair but takes the longest, the chamber assay is hard work but gives dense, normal hair, and the patch assay is quick but creates poorly oriented hair with some issues.