January 2018 in “International Journal of Medical Reviews and Case Reports” A 6-year-old girl with head lice developed scarring hair loss but improved with treatment.
207 citations
,
September 1973 in “Entomologia Experimentalis et Applicata” B-type hairs on female butterfly legs help them choose where to lay eggs.
14 citations
,
May 2016 in “International Journal of Molecular Sciences” PP2Acα is essential for proper hair and skin development.
6 citations
,
January 2017 in “Journal of toxicologic pathology” Rabbit skin with active hair growth shows thicker, redder areas due to larger, more numerous hair follicles and increased blood vessels.
17 citations
,
September 2019 in “Journal of Cell Biology” Hair follicle regeneration may slow tumor growth.
20 citations
,
January 1995 in “Cells tissues organs” Changing light periods synchronized wool growth cycles in sheep.
207 citations
,
March 2012 in “Development” Skin needs dermal β-catenin activity for hair growth and skin cell multiplication.
5 citations
,
July 2010 in “Archives of Internal Medicine” Prostaglandins may protect hair follicles during chemotherapy.
Hair growth is controlled by cell interactions and influenced by specific growth factors and hormones.
5 citations
,
July 2005 in “British journal of dermatology/British journal of dermatology, Supplement” A man grew hair on his penis, which is not common, and needed surgery to remove it.
42 citations
,
February 2017 in “Scientific Reports” Researchers found a way to create cells from stem cells that act like human cells important for hair growth and could be used for hair regeneration treatments.
Activin A and Follistatin affect how mouse hair follicles grow.
September 1984 in “Journal of Biological Education” Human hair growth involves active, resting, and intermediate phases, and examining plucked hairs can teach students about hair biology and diseases.
6 citations
,
August 1937 in “Journal of the Society of Chemical Industry” May 2017 in “Journal of the American Academy of Dermatology”
6 citations
,
February 2016 in “American Journal of Dermatopathology” The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.
8 citations
,
September 1981 in “Zentralblatt für Veterinärmedizin Reihe A” Biotin deficiency in pigs causes hair loss, skin issues, and weak claws.
51 citations
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February 2009 in “Journal of dermatological science” Pitx2 helps outer root sheath cells differentiate but can't start hair growth on its own.
30 citations
,
April 2017 in “European Journal of Cell Biology” CIP/KIP proteins help stop cell division and support hair growth.
Dark hair with a red beard likely evolved for camouflage, not attraction.
86 citations
,
December 2001 in “Experimental dermatology” Mutant mice help researchers understand hair growth and related genetic factors.
March 2025 in “International Journal of Molecular Sciences” PLIN2 affects hair growth in cashmere goats, potentially improving cashmere quality.
10 citations
,
October 2000 in “PubMed” E6/E7 oncogenes in hair follicles cause continuous hair growth by skipping the resting phase.
141 citations
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June 2002 in “Philosophical Transactions of the Royal Society B Biological Sciences” The study revealed how specific genes and proteins control root hair growth in plants.
5 citations
,
October 2024 in “International Journal of Molecular Sciences” Piperonylic acid may help hair growth and treat hair loss.
1 citations
,
May 2024 in “Tạp chí Nghiên cứu Y học” Eclipta prostrata extract significantly promotes hair growth in rats.
248 citations
,
April 1988 in “Differentiation” Human and bovine hair follicles have distinct cytokeratins specific to hair-forming cells.
April 2018 in “Journal of Investigative Dermatology” The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.
122 citations
,
June 2002 in “Genes & Development” Keratin 17 is crucial for early hair strength and cell survival.
September 2023 in “Journal of The American Academy of Dermatology” Baricitinib treatment can help regrow scalp hair and eyebrows or eyelashes in people with severe alopecia areata.