September 2019 in “Journal of Investigative Dermatology” Innate lymphoid cells type 1 may contribute to alopecia areata.
175 citations
,
December 2014 in “PLoS Biology” Macrophages help activate hair follicle stem cells, affecting hair growth and skin repair.
44 citations
,
January 2006 in “Biological & Pharmaceutical Bulletin” Androgen hormones cause hair follicle scarring in hair loss, and finasteride helps reduce it.
12 citations
,
August 2022 in “Journal of Controlled Release” A new microneedle patch effectively promotes hair growth by increasing blood vessel formation around hair follicles.
September 2025 in “Frontiers in Medicine” Angiopoietin-1 helps hair cells survive and grow, making it a potential treatment for hair loss.
September 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” Angiopoietin-1 helps hair follicle cells survive and grow, potentially treating hair loss.
June 2020 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle bumps with stem cells might contribute to permanent hair loss by getting disconnected due to scarring.
79 citations
,
November 2010 in “Journal of Neuroscience” Hair clipping can trigger axon growth and changes in the skin.
15 citations
,
September 1999 in “British Journal of Dermatology” Epimorphin, a protein, plays a key role in the development of hair follicles in human fetuses, but it doesn't help in maintaining the stem cell population of the follicular skin layer.
8 citations
,
October 2020 in “Lasers in Medical Science” LLLT helps treat hair loss by increasing blood flow, reducing inflammation, and stimulating growth factors.
125 citations
,
September 2001 in “The FASEB Journal” Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.
7 citations
,
October 2000 in “Allergo Journal” Stress may affect hair growth by influencing hair follicle development and could contribute to hair loss.
September 2023 in “International Journal of Dermatology” Younger people are at a higher risk for Fibrosing Alopecia in a Pattern Distribution than previously thought, with common symptoms and possible involvement of mast cells in its development.
August 2024 in “International Journal of Molecular Sciences” Androgenetic alopecia involves immune cell disruptions, especially increased CD4+ T cells around hair follicles.
July 2025 in “Journal of Investigative Dermatology” Scarring alopecia involves increased immune cells and specific gene changes near damaged hair follicles.
90 citations
,
June 2006 in “The American Journal of Dermatopathology” The document concludes that accurate diagnosis of different types of hair loss requires careful examination of hair and scalp tissue, considering both clinical and microscopic features.
29 citations
,
September 2014 in “American Journal of Dermatopathology” Horizontal sections of scalp biopsies are good for diagnosing Central Centrifugal Cicatricial Alopecia and help customize treatment.
21 citations
,
January 2019 in “Experimental dermatology” Light therapy using helium-neon lasers can help restore skin color in vitiligo by promoting skin cell growth and movement.
20 citations
,
November 2005 in “Journal of Investigative Dermatology Symposium Proceedings” IFN-γ and IL-2 are important for T cell activation in hair loss in mice.
15 citations
,
December 2011 in “Journal of the European Academy of Dermatology and Venereology” Hair loss in systemic lupus erythematosus patients is unique and improves with treatment.
13 citations
,
January 2016 in “Journal of cosmetology & trichology” Alternative treatments show promise for hair growth beyond traditional methods.
9 citations
,
January 2017 in “Dermatology Online Journal” Some hair loss drugs can cause a unique type of hair loss that resembles both psoriasis and alopecia.
5 citations
,
July 2013 in “Our Dermatology Online” Lichen planopilaris is the most common type of scarring hair loss observed, with a variety of symptoms and tissue changes.
5 citations
,
August 2001 in “International Journal of Dermatology” A 20-year-old had hair loss and skin issues from lichen planopilaris starting at age 10.
4 citations
,
August 1991 in “The Journal of Dermatology” The tumor on the man's nose was a rare type called pedunculated follicular hamartoma.
4 citations
,
September 2011 in “Journal of the American Academy of Dermatology” A man developed a skin cancer called folliculotropic mycosis fungoides after a kidney transplant.
November 2025 in “Journal of Investigative Dermatology” Radiation-induced hair loss may be caused by hair growth stopping and inflammation in blood vessels.
November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Blocking TYK2 might be a new way to treat hair loss from alopecia areata.
September 2020 in “Advances in anatomic pathology” A woman's large nose growth was initially misdiagnosed, but later confirmed to be giant rhinophyma after full removal and examination.
July 2019 in “Indian dermatology online journal” Alopecia areata can show unusual red-dotted vessels and dithranol treatment may mask typical patterns.