January 2004 in “Giornale di Metafisica: revista bimestrale di filosofia” Increased Wnt signaling causes hair graying by depleting melanocyte stem cells in aged mice.
3 citations
,
October 2021 in “Clinica Chimica Acta” Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.
3 citations
,
June 1979 in “The Journal of Dermatology” Glycosaminoglycan levels peak early in hair growth and decrease as the cycle progresses.
28 citations
,
September 1998 in “Medical Clinics of North America” Most hair loss can be diagnosed with patient history and physical exam, and a few common types make up most cases.
Cross-section trichometry is an accurate method to measure hair loss and growth.
10 citations
,
February 2019 in “Journal of cellular physiology” TGF-β2 helps yak hair follicles enter the regression phase, while HSP70 tries to prevent it.
1 citations
,
July 2022 in “British Journal of Dermatology” Targeting specific genes in certain pathways may help treat male pattern baldness.
12 citations
,
January 1984 in “Anesthesia & Analgesia” Anesthesia and surgery can cause temporary hair loss, but hair usually grows back without treatment.
November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Apoptotic cells may trigger cell death in hair follicles during their regression cycle.
January 2021 in “International journal of dermatology, venereology and leprosy sciences” AGA and TE can be differentiated by specific trichoscopic features, with AGA showing more variation in hair thickness in fronto-temporal areas.
41 citations
,
June 2010 in “Journal of Investigative Dermatology” New cells are added to the hair's dermal papilla during the active growth phase.
19 citations
,
July 2004 in “Australasian Journal of Dermatology” Her hair grew back normally after she stopped rubbing it.
Finasteride and luteolin may help promote hair growth.
2 citations
,
January 2004 in “Enshou saisei” Male pattern baldness is caused by certain cells in hair follicles and could potentially be treated by targeting a specific growth factor, TGF-β1.
September 2024 in “Journal of Investigative Dermatology” A new tool can analyze hair to detect changes due to hormones, genetics, and aging.
December 2025 in “Brazilian Journal of Hair Health” The Spiral Model helps understand hair growth changes with age and identify hair problems early.
122 citations
,
April 1995 in “Journal of Cutaneous Pathology” The document describes how to tell different types of non-scarring hair loss apart by looking at hair and scalp tissue under a microscope.
April 2023 in “Journal of Investigative Dermatology” Muscle around hair follicles controls hair loss by releasing a signal that causes cell death.
April 2017 in “Journal of Investigative Dermatology” The hair follicle dermal sheath is essential for hair shedding and needs to communicate with the outer root sheath for normal hair growth cycles.
A man had temporary hair loss after a spinal cord injury, with some permanent thinning remaining.
1 citations
,
February 2022 in “Clinical, Cosmetic and Investigational Dermatology” TDM10842, a thyroid hormone receptor activator, was found to effectively promote hair growth in mice.
Combining PRP with Tressfix Serum is more effective for hair regrowth in telogen effluvium than using either alone.
3 citations
,
January 2012 in “Wageningen Academic Publishers eBooks” Hair health depends on various factors and hair loss can significantly affect a person's well-being; understanding hair biology is key for creating effective hair care treatments.
18 citations
,
July 2016 in “Medicine” Wnt/β-catenin and TGF-β pathways affect hair loss, and activating Wnt/β-catenin could be a potential treatment.
Low-level light therapy, possibly combined with other treatments, may become a leading hair loss treatment, while hirsutism often worsens with age and lacks preventive options.
22 citations
,
February 2002 in “Journal of theoretical biology” The model showed that randomness accurately describes individual hair growth cycles and that synchronization can cause large fluctuations not seen in humans.
November 2024 in “Journal of Investigative Dermatology” Stimulating OR10J1 can promote hair growth and may help treat hair loss.
January 1998 in “KAGAKU TO SEIBUTSU” The document suggests that male hormones likely affect hair growth and baldness, and future treatments might involve stem cells and androgen-independent cells.
August 2024 in “Journal of Cosmetic Dermatology” Telogen effluvium is linked to deficiencies in iron, vitamin B12, and thyroid function.
2 citations
,
August 2022 in “Clinical Case Reports” A 17-year-old girl had severe, on-and-off hair loss, likely due to COVID-19. She was treated with Vitamin D3, biotin, and other supplements, and saw some improvement within a month.