115 citations
,
August 2008 in “The Journal of Clinical Endocrinology & Metabolism” Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.
13 citations
,
March 2019 in “Journal of cosmetic dermatology” Heat damages hair, with Asian hair losing more protein than Caucasian hair.
15 citations
,
January 1988 Hair follicles have unique proteins that vary by species and are influenced by nutrition.
25 citations
,
April 2019 in “Animals” KRTAP28-1 gene can help breed sheep with finer wool.
27 citations
,
April 2018 in “Scientific Reports” Psoriasis patients' immune response to a hair protein depends on their specific gene type.
March 2026 in “Nature Communications” Genetic factors, skin barrier, immune function, and obesity influence risk of fungal skin infections.
4 citations
,
January 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” A faulty KLHL24 gene leads to hair loss by damaging hair follicle stem cells.
2 citations
,
January 2017 in “Folia biologica” The KRTAP7-1 gene is very similar across different cattle and yak breeds and likely plays a role in hair strength and shape.
19 citations
,
January 2018 in “Scientific Reports” Non-immune factors play a significant role in alopecia areata.
1 citations
,
January 2021 in “Springer Proceedings in Materials” Researchers developed a new method to clearly see and label hair proteins with minimal errors using advanced freezing and microscopy techniques.
211 citations
,
April 2018 in “Cold Spring Harbor Perspectives in Biology” Keratins are crucial for cell structure, growth, and disease risk.
2 citations
,
December 2018 in “Journal of cosmetic dermatology” Higher CRBP1 levels are linked to more severe alopecia areata.
23 citations
,
April 2003 in “Journal of Structural Biology” Keratin structure changes during keratinization, but the exact model remains uncertain.
1 citations
,
June 2018 in “International Journal of Contemporary Pediatrics” Poor nutrition in young children causes skin and hair issues, highlighting the need for better nutrition education.
March 2026 in “Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials” Hair cuticles remain stable and resilient under stress due to strong protein content and crosslinking.
2 citations
,
July 2019 in “Cosmetics” Beautiful hair is flexible and elastic due to its unique double-layered structure and can be enhanced with succinic acid treatment.
4 citations
,
July 2020 in “Journal of proteomics” Hair protein composition is similar across different races and shapes.
170 citations
,
January 2010 in “animal” Hair follicle growth and fiber production in animals are influenced by chemical signals, proteins, pigmentation, genetics, and nutrients.
68 citations
,
August 2014 in “PeerJ” Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
64 citations
,
March 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” GPRC5D is linked to the formation of hair, nails, and certain tongue areas.
65 citations
,
March 2017 in “Experimental Dermatology” Curly hair is influenced by specific genetic variations.
4 citations
,
April 1989 in “The Journal of Dermatology” Trichohyalin granules help inner root sheath cells in hair follicles harden by integrating with keratin filaments.
9 citations
,
February 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The document concludes that the human keratin gene cluster is complex, with a need for updated naming to reflect over 50 functional genes important for hair and skin biology.
Alopecia areata patients show increased inflammation and OX40 activation, suggesting a new treatment target.
86 citations
,
May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
28 citations
,
February 2012 in “PLoS ONE” A PKP1 gene mutation causes skin fragility and hair loss in Chesapeake Bay retriever puppies.
March 2026 in “DergiPark (Istanbul University)” Biotinoyl tripeptide-1 nanoparticles protect hair from heat damage.
The GG genotype of the KRT71 gene leads to longer wool in Gansu alpine fine-wool sheep.
15 citations
,
August 2006 in “Journal of Cutaneous Pathology” HIV-1 may cause increased stem cell death in hair follicles, leading to hair loss.