November 2023 in “Frontiers in cell and developmental biology” Hair aging is caused by stress, hormones, inflammation, and DNA damage affecting hair growth and color.
Bee pollen, green tea, essential oils, and various plant extracts improve skin and hair health.
30 citations,
January 2014 in “Dermatologic Clinics” Tight hairstyles, especially on chemically treated hair, can cause reversible hair loss if caught early but may become permanent if not addressed.
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
27 citations,
June 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found that variations in hair protein genes are likely due to evolutionary deletions or duplications.
14 citations,
April 2016 in “PloS one” The KRTAP11-1 gene promoter is crucial for specific expression in sheep wool cortex.
35 citations,
April 2014 in “Journal of proteomics” Feed restriction in sheep leads to finer wool fibers but may reduce wool quality.
27 citations,
August 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” Researchers found new genes involved in hair growth, which could help develop new hair treatments.
18 citations,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
2 citations,
January 2019 in “International journal of medicine in developing countries” Many people in Majmaah city, Saudi Arabia, don't know much about vitamin D deficiency and don't practice good vitamin D habits, with few linking it to hair loss.
May 2024 in “Proteome science” Bleaching damages hair by reducing the quality of keratin and keratin-associated proteins.
December 2018 in “IntechOpen eBooks” Neurohormones help control skin health and could treat skin disorders.
March 2014 in “Dermatologic Clinics” More research, better treatments, and public education are needed for dermatological conditions in people of African descent.
May 2011 in “Value in Health” CP-690,550 significantly reduced itching in patients with moderate-to-severe plaque psoriasis.
87 citations,
July 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.
86 citations,
April 2009 in “Journal of anatomy” Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.
73 citations,
October 2013 in “International Journal of Cosmetic Science” Chemical hair straightening can damage hair and health, needing safer alternatives and stricter regulations.
39 citations,
January 1994 in “European Journal of Cancer” Scalp cooling is largely ineffective in preventing hair loss from breast cancer chemotherapy.
22 citations,
July 2012 in “Journal of integrative agriculture/Journal of Integrative Agriculture” Hoxc13 is linked to seasonal hair growth in Cashmere goats and is affected by melatonin.
17 citations,
October 2017 in “Scientific reports” Fine wool sheep have more genes for wool quality, while coarse wool sheep have more for skin and muscle traits.
16 citations,
January 2017 in “Physical chemistry chemical physics/PCCP. Physical chemistry chemical physics” The 3D structure of a key hair protein was modeled, revealing specific helical structures and stabilization features.
13 citations,
December 2017 in “Stem cells” Low-dose radiation affects hair stem cell function and survival by changing their genetic material's structure.
12 citations,
December 2017 in “Journal of biomaterials science. Polymer ed.” Human hair protein extracts can protect skin cells from oxidative stress.
12 citations,
July 2014 in “Journal of Investigative Dermatology” Chemotherapy causes complex changes in hair follicle cells that can lead to hair loss.
9 citations,
June 2014 in “Molecular biology reports” KAP9.2 and Hoxc13 genes are important for cashmere growth and vary in activity during different stages.
7 citations,
June 2017 in “Omics” The study developed a method to analyze ancient hair proteins using very small samples.
6 citations,
August 2023 in “BMC genomics” The study found that genetic differences related to hair growth and other traits help cashmere goats adapt to high-altitude environments.
3 citations,
September 2014 in “SpringerPlus” Human hair loss may have evolved to help increase brain size.
1 citations,
April 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Goat skin changes with the seasons due to genes affected by daylight and hormones.
April 2024 in “Frontiers in endocrinology (Lausanne)” Melatonin improved secondary hair growth in goats but didn't affect primary hair density or litter size.