January 2022 in “JAAD case reports” Granulomatous alopecia areata is a rare but real form of hair loss.
September 2025 in “PubMed” Mechanical stimulation and new therapies show promise for hair regrowth.
19 citations
,
December 2023 in “Journal of Investigative Dermatology” Scalp hair follicle microbes affect hair health and could be used for treatments.
235 citations
,
July 1999 in “Journal of biological chemistry/The Journal of biological chemistry” Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.
73 citations
,
May 2009 in “Proceedings of the National Academy of Sciences” Disrupting the Sox21 gene in mice causes hair loss and regrowth cycles.
38 citations
,
December 2006 in “Journal of Investigative Dermatology” Keratin patterns in hair follicles help understand hair growth and potential hair and nail disorders.
18 citations
,
January 2019 in “European journal of histochemistry” Cattle skin has leptin which might control skin and hair growth.
11 citations
,
January 2022 in “Journal der Deutschen Dermatologischen Gesellschaft” Alopecia areata is a chronic condition causing hair loss, with new treatments targeting the immune system showing promise.
6 citations
,
February 2021 in “Frontiers in Cell and Developmental Biology” Eating too much or too little vitamin A can cause hair loss.
4 citations
,
October 2022 in “Genes” Our microbiome may affect the development of the hair loss condition Alopecia Areata, but more research is needed to understand this relationship.
1 citations
,
December 2023 Hair grows in cycles and changes with age, starting from fetal development.
October 2025 in “Gene Expression” Exosome therapy could be a promising new way to treat hair loss.
Arginine deficiency hinders hair growth in androgenetic alopecia, but restoring it can promote hair regeneration.
June 2025 in “Molecular Therapy — Nucleic Acids” A new treatment using a DNA aptamer can promote hair growth by targeting a specific receptor.
May 2025 in “International Journal of Trichology” Partially bald areas in Indian AGA patients still have hair growth cells, suggesting early treatment is best.
October 2023 in “Biomaterials” Nanotechnology could improve hair regrowth but faces challenges like complexity and safety concerns.
45 citations
,
April 2019 in “International Immunology” The study concluded that immune cells attacking hair follicles cause hair loss in alopecia, with genetics and environment also playing a role, and highlighted the potential of certain treatments.
8 citations
,
June 2023 in “Acta Biochimica et Biophysica Sinica” rRSPO1 protein boosts hair growth by activating a key signaling pathway.
8 citations
,
July 2020 in “BMC genomics” The research found genes that change during cashmere goat hair growth and could help determine the best time to harvest cashmere.
8 citations
,
January 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Growth hormone is important for regulating human hair growth.
5 citations
,
September 2024 in “Journal of Clinical Medicine” Scalp cooling effectively reduces hair loss in breast cancer patients undergoing chemotherapy.
5 citations
,
July 2024 in “Journal of Microbiology and Biotechnology” ICP5249 helps hair grow by activating a specific cell pathway.
4 citations
,
January 2017 in “PubMed” A girl with lupus had unusually long and thick eyelashes, a rare symptom of her condition.
November 2024 in “Burns & Trauma” Skin organoids help improve wound healing and tissue repair.
3 citations
,
June 2023 in “Medicines” Some antiseizure medications can cause reversible hair loss, with valproate, lamotrigine, and carbamazepine being the most common.
54 citations
,
September 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” Vitamin A affects hair loss and immune response in alopecia areata.
37 citations
,
February 2007 in “Experimental Dermatology” Increasing PDCD4 protein may help prevent or treat some skin cancers.
30 citations
,
August 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” TGase 3 helps build hair structure by forming strong bonds between proteins.
10 citations
,
August 2021 in “Frontiers in cell and developmental biology” Scientists made structures that look like human hair follicles using stem cells, which could help grow hair without using actual human tissue.
3 citations
,
September 2025 in “Frontiers in Immunology” JAK inhibitors are effective for treating moderate-to-severe alopecia areata.