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September 2021 in “Journal of Cosmetic Dermatology” B-mode ultrasonography and shear-wave elastography can help predict androgenetic alopecia early.
173 citations
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July 1995 in “Biochemical and biophysical research communications” Male hormones promote hair cell growth by using a growth factor from nearby skin cells.
January 2018 in “Our Dermatology Online” Trichomycosis axillaris is a treatable bacterial infection of underarm hair.
5 citations
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February 2017 in “Facial Plastic Surgery Clinics of North America” Improve chin and perioral scars with surgery, resurfacing, and other therapies, tailored to each patient.
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November 1999 in “Medical Hypotheses” Minoxidil, a common hair loss treatment, might work by counteracting a hormone that reduces hair growth and promotes hair loss.
13 citations
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August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Mutations in the DSG4 gene cause fragile, sparse hair in humans, mice, and rats.
January 2024 in “Medicina” Proper planning and technique in upper-face feminization surgery are crucial to avoid complications and revisions.
November 2023 in “Indian Journal of Dermatology” The study found that Frontal Fibrosing Alopecia in North-East India mainly affects middle-aged women and is often associated with lichen planus pigmentosus.
30 citations
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August 2004 in “British Journal of Plastic Surgery” Chest hair can be successfully used for scalp hair transplants, growing longer like scalp hair.
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February 2018 in “Facial Plastic Surgery” A minimally invasive brow lift can effectively manage heavy brows for a natural look.
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October 2003 in “Brazilian Journal of Medical and Biological Research” The gene SDR5A1 is found in scalp hair of both hirsute and normal individuals, but it does not explain differences in hair growth.
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January 1992 in “Experientia”
September 2025 in “Journal of the American Academy of Dermatology” Sublingual minoxidil significantly improves hair growth in transgender individuals on testosterone therapy.
Vertex accentuation is a common pattern in female hair loss.
July 2018 in “Elsevier eBooks” Acne keloidalis nuchae is a chronic skin condition more common in African men, causing itchy or painful bumps and can lead to permanent hair loss if not treated early.
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November 2010 in “Genesis” Mouse Scube3 affects teeth, tongue, vibrissae, and eye development, but not facial structure or limb growth.
May 2018 in “Dermatologic Surgery”
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February 2022 in “The journal of neuroscience/The Journal of neuroscience” Deleting the PTEN gene in mice causes nerve cells to grow larger and heal better after injury, but may cause overgrowth and hair loss in older mice.
23 citations
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July 1997 in “British Journal of Dermatology” The inner root sheath is vital for hair follicle stability during growth changes.
August 1994 in “Journal of Dermatological Science”
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Minoxidil can help grow facial hair but isn't widely approved for everyone.
As people age, certain enzymes in scalp glands decrease, affecting hair health.
March 2026 in “Frontiers in Medicine” Diffuse unpatterned alopecia can affect donor areas, but treatment with finasteride and minoxidil can improve hair density.
20 citations
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December 2010 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Decreased CD200 in hair follicles may cause immune issues in some alopecia areata cases.
January 2001 in “Biomedical Research” THH and PAD type III appear together early in hair growth, but deiminated THH appears later, suggesting another factor is involved.
10 citations
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July 2017 in “Archives of Plastic Surgery” Hair thickness decreases from the upper to lower areas of the back of the head, affecting hair transplant results.
November 2024 in “Benha Journal of Applied Sciences” Reduced alpha smooth muscle actin may cause hair loss in androgenetic alopecia.
9 citations
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December 2002 in “Novartis Foundation Symposium” LEF1 is essential for the development of airway glands and is regulated by the Wnt/ß-catenin pathway.
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March 2023 in “Lasers in Surgery and Medicine” Ablative fractional laser treatment nearly matches the gene reduction effects of topical vismodegib in skin cancer.
18 citations
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April 1986 in “International Journal of Cosmetic Science” Minoxidil promotes hair regrowth in early baldness stages and prevents baldness in non-bald scalps.