May 2024 in “Frontiers in medicine” A genetic mutation in the LIPH gene causes tightly curled hair that stops growing in some Japanese individuals.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” DHT increases scalp heat, causing hair loss.
6 citations
,
January 2013 in “Genetics and Molecular Research” Women with hair loss have more androgen receptors in certain hair follicles.
2 citations
,
February 2023 in “International Journal of Cosmetic Science” Hair loss is more common in areas with multiple hair strands, especially in men.
November 2025 in “Archaeometry” Animal hair from 18th-century Mazamet burial sites shows locals used goat, badger, cow, or horse fur for clothing, indicating modest economic status.
2 citations
,
February 2022 in “Genomics” Researchers discovered new cell types in goat hair follicles that could help understand hair regrowth and human hair loss.
13 citations
,
January 2014 in “Postępy Dermatologii i Alergologii” Patchy alopecia areata can affect only pigmented hairs, leaving gray hairs untouched.
January 2007 in “한국미용학회지” People with hair loss have smaller hair roots and less fat tissue.
122 citations
,
November 2010 in “Journal of Dermatological Science” Male pattern baldness involves hormones and cell signals affecting hair growth.
1 citations
,
July 2018 in “Elsevier eBooks” Triple horizontal scalp biopsies are 98% accurate in diagnosing hair loss, better than single biopsies.
1 citations
,
July 2010 in “Dermatologic Surgery” Splitting one hair follicle into two can help regrow hair with a 50% to 70% success rate, useful when donor hair is limited.
Women with a certain type of hair loss have more copper in the back of their head than the front, and treatment can normalize hair but not copper levels.
10 citations
,
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.
129 citations
,
January 2009 in “International Journal of Trichology” Trichoscopy can diagnose female hair loss with high accuracy by looking for specific patterns in hair and scalp appearance.
March 1997 in “The Lancet” Hirsutism is abnormal male-pattern hair growth in females due to excess androgens.
109 citations
,
April 1997 in “Archives of Dermatological Research” Mast cell and nerve fiber interactions in mouse skin change with the hair cycle.
1 citations
,
January 2012 in “Journal of Toxicologic Pathology” A rat had a cyst similar to a hair follicle structure.
May 2026 in “Journal of Basic and Clinical Health Sciences” FAGA shows varied hair thickness, while TE has more empty follicles.
17 citations
,
September 2005 in “International Journal of Dermatology” African hair is more fragile due to its unique shape and internal structure.
18 citations
,
July 2003 in “Dermatologic Surgery” The conclusion is that creating natural-looking hair restoration requires replicating natural scalp whorl patterns and inserting grafts at specific angles.
294 citations
,
February 2011 in “Cell” Nephronectin helps attach muscle cells to hair follicles.
42 citations
,
October 2012 in “Dermatologic Clinics” Trichoscopy is a useful tool for diagnosing different hair and scalp diseases without surgery.
31 citations
,
September 2016 in “PLoS ONE” Cell division orientation varies by body site and is linked to epidermal thickness and cell density.
8 citations
,
January 2020 in “International Journal of Trichology” Different patterns on the scalp help diagnose types of hair loss without needing a biopsy.
2 citations
,
April 2021 in “International Journal of Molecular Sciences” The study concluded that changing the culture conditions can cause sika deer skin cells to switch from a flat to a 3D pattern, which is important for creating hair follicles.
40 citations
,
June 2013 in “Biomaterials” Scientists created 3D hair-like structures that could help study hair growth and test treatments.
23 citations
,
July 1997 in “British Journal of Dermatology” The inner root sheath is vital for hair follicle stability during growth changes.
62 citations
,
February 2016 in “ACS Applied Materials & Interfaces” Technique creates 3D cell spheroids for hair-follicle regeneration.
January 2026 in “Avicenna Bulletin” Aligning hair implants with natural growth patterns improves hair transplant results.
January 2021 in “International journal of dermatology, venereology and leprosy sciences” Trichoscopy shows black dots, yellow dots, and empty follicles are common in Alopecia Areata, with broken and exclamation mark hair as typical patterns.