September 2023 in “Asian journal of beauty & cosmetology” Lipids are important for healthy hair, but their exact role is not fully understood and needs more research.
November 2022 in “Research Square (Research Square)” Keratin-associated proteins have ancient origins and were used for different purposes before being adapted for hair in mammals.
December 2018 in “IntechOpen eBooks” Neurohormones help control skin health and could treat skin disorders.
5 citations
,
July 2014 in “Molecular Biology Reports”
April 2024 in “Frontiers in endocrinology (Lausanne)” Melatonin improved secondary hair growth in goats but didn't affect primary hair density or litter size.
2 citations
,
May 2019 in “Small ruminant research” Mutations in specific llama genes may affect fiber quality for textiles.
38 citations
,
January 2014 in “Journal of Dermatological Science” Krtap11-1 is important for hair strength and structure.
95 citations
,
August 2013 in “Journal of Investigative Dermatology” HPT axis hormones boost mitochondrial function and growth in hair follicles, potentially aiding hair health.
19 citations
,
September 2007 in “The Journal of Steroid Biochemistry and Molecular Biology” Glucocorticoid receptors help regulate genes important for skin health and hair growth.
8 citations
,
September 2020 in “Genes & Genomics” 30 citations
,
May 2020 in “Forensic Science International Genetics” The method improved hair analysis for better forensic identification.
13 citations
,
February 2019 in “Zoology” Lustre mutant sheep have normal hair structure and proteins but differ in felting properties.
72 citations
,
December 2011 9 citations
,
February 2016 in “Anatomical Science International” Hair proteins change location and structure as hair cells mature.
1 citations
,
February 2023 in “Journal of Natural Fibers” Higher keratin protein levels are important for the wool's shine in Magra sheep.
122 citations
,
January 2006 in “Molecular & Cellular Proteomics” Human hair contains many proteins, with some being highly abundant and modified.
27 citations
,
May 2019 in “Cosmetics” The hair cuticle is made of tough proteins that protect the hair, but more research is needed to fully understand its structure.
12 citations
,
January 2021 in “Journal of Investigative Dermatology” Hair follicle studies suggest that maintaining telomere length could help treat hair loss and graying, but it's uncertain if mouse results apply to humans.
5 citations
,
January 2020 3 citations
,
October 2024 in “Animals” Crimped wool has proteins linked to crimp formation, while straight wool has proteins linked to fiber fineness, which can improve wool quality and value.
2 citations
,
March 2023 in “BMC ecology and evolution” Some hair protein genes evolved early and were adapted for use in hair follicles.
1 citations
,
July 2023 in “Forensic science international. Genetics” Hair protein analysis might help identify a person's ethnicity, sex, and age in forensics.
August 2024 in “Applied Sciences” Plant extracts may help prevent or reverse hair graying.
11 citations
,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
8 citations
,
May 2020 in “International journal of biological macromolecules” Certain treatments can increase protein binding to natural hair but are less effective on permed hair.
4 citations
,
January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
4 citations
,
August 2014 in “Journal of molecular structure” Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.
2 citations
,
January 2015 in “Sen'i Gakkaishi” Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.
April 2020 in “International Journal of Cosmetic Science” The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.