October 2022 in “European heart journal” Higher stress levels were found about two weeks before a heart attack.
Proretinal nanoparticles are a safe and effective way to deliver retinal to the skin.
March 2024 in “International journal of molecular sciences” Zinc, copper, and iron are important for skin health and may help diagnose skin diseases.
11 citations,
September 2020 in “Steroids” A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.
501 citations,
October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
10 citations,
June 2001 in “Annals of neurology” Alzheimer's patients have higher levels of certain chemicals in their hair.
3 citations,
July 2019 in “Experimental Dermatology” Hair loss patients may have different polyamine levels in various scalp areas.
2 citations,
June 2022 in “Scientific reports” Women with PCOS have higher hair cortisol levels, which are linked to worse metabolic and inflammatory conditions.
96 citations,
September 2017 in “Analytica Chimica Acta” Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.
81 citations,
February 1997 in “Journal of Investigative Dermatology” Minoxidil boosts hair growth by activating PGHS-1.
47 citations,
June 1996 in “International Journal of Legal Medicine” Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.
11 citations,
September 2012 in “Chinese science bulletin/Chinese Science Bulletin” Hair mineral content can help diagnose certain common illnesses.
10 citations,
September 2020 in “Metabolites” Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.
8 citations,
November 2020 in “Infant behavior & development” Collecting hair for cortisol analysis is possible in low-income mother-toddler pairs.
5 citations,
November 2020 in “Frontiers in Cell and Developmental Biology” The "Two-Cell Assemblage" assay is a new, simple method to identify substances that may promote hair growth.
5 citations,
September 2016 in “Journal of Cosmetic Dermatology” Nourkrin® with Marilex® may increase hair count by 35.7% in postpartum hair loss.
4 citations,
July 2020 in “International Journal of Cosmetic Science” All hair removal methods irritate underarm skin and cause dryness, with shaving being less irritating but more drying than plucking or waxing.
2 citations,
December 2021 in “Scientific reports” Scalp hair sweating is a significant predictor of hair cortisol levels.
Hair analysis can help identify specific minerals and amino acids linked to various diseases.
April 2024 in “Journal of wildlife diseases” Muskox hair growth rates vary widely, so a single growth rate can't be used for all populations.
January 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” Mothers have more hair proteins than their children, with age-related differences in protein patterns, and some proteins in hair could indicate early childhood development.
Forensic hair analysis for drugs is now more reliable and accurate.
Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.
January 2023 in “Research Square (Research Square)” Hair cortisol may be a good indicator of recent mood in people with bipolar disorder.
November 2021 in “Egyptian Journal of Medical Microbiology” COVID-19 protective measures led to skin irritation, hair loss, and brittle nails; using skin-friendly products and a healthy diet is recommended.
12 citations,
December 2017 in “Journal of biomaterials science. Polymer ed.” Human hair protein extracts can protect skin cells from oxidative stress.
April 2024 in “Research Square (Research Square)” 16-MHA can restore the barrier and moisture of damaged hair, making it similar to undamaged hair.
October 2023 in “Animal production science” Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.
44 citations,
February 2016 in “Zoology” Hair cortisol levels in primates are useful for stress assessment but vary by age, sex, species, and hair collection methods.
16 citations,
April 2012 in “Journal of mammalogy” Young female Australian fur seals are losing hair due to low tyrosine and zinc levels and high pollution exposure.