8 citations,
August 2018 in “Drug testing and analysis” EtG levels in hair decrease significantly after one month of alcohol abstinence.
2 citations,
May 2022 in “Diagnostics” Vitamin D levels in hair don't match those in blood, so hair isn't a reliable indicator of Vitamin D status.
1 citations,
October 2023 in “The Journal of nutrition, health & aging” Higher hair levels of zinc and chromium were linked to less cognitive decline in very old people.
15 citations,
January 2018 in “Indian Journal of Dermatology” Women with androgenetic alopecia have lower zinc and iron levels.
4 citations,
May 2021 in “Molecules” The hair test for vitamin D could be a useful alternative to blood tests, providing a longer-term vitamin D status, but more research is needed.
21 citations,
January 2014 in “Dermatology Research and Practice” Hair and serum levels of zinc, copper, and iron are similar in people with alopecia areata and healthy individuals.
2 citations,
January 2020 in “Clinical and experimental obstetrics & gynecology” Hair levels of estradiol and progesterone are higher in premenopausal than postmenopausal women, but the difference isn't statistically significant, indicating the need for a better measurement method.
1 citations,
January 2017 in “Annals of dermatology/Annals of Dermatology” Mineral levels in hair don't significantly affect the severity of atopic dermatitis in children.
65 citations,
August 2016 in “Metabolic brain disease” Children with autism have lower levels of essential and toxic trace elements in their hair.
June 2020 in “Authorea (Authorea)” First-time mothers had higher stress hormone levels in late pregnancy than mothers who had given birth before.
1 citations,
December 2023 in “Environmental pollution” Hair analysis shows infants and mothers in north-western Spain are exposed to environmental pollutants, with factors like diet and residence affecting pollutant levels.
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.
18 citations,
February 2020 in “Journal of pharmaceutical and biomedical analysis” The method accurately measures hormones and endocannabinoids in mice, showing gut microbiota diversity affects these levels and may influence stress and reproductive systems.
November 2023 in “Biology” Lower hair copper and copper-to-zinc ratio are linked to more severe coronary artery disease.
14 citations,
June 2020 in “Drug Testing and Analysis” A new method was created to measure metformin in hair, showing potential for monitoring treatment and medical investigations.
24 citations,
November 2013 in “British Journal of Dermatology” Chemotherapy causes hair loss starting soon after treatment begins and recovers about 3 months after ending, while tamoxifen does not significantly affect hair growth.
16 citations,
March 2015 in “Dermatologic therapy” Zinc supplementation may be an important part of treating severe hair loss.
63 citations,
May 2017 in “American Journal of Clinical Dermatology” People with alopecia areata often have lower levels of vitamin D, zinc, and folate, but more research is needed to understand if supplements can help treat it.
February 2023 in “Global journal of health sciences and research” Zinc levels are not significantly linked to the presence or severity of alopecia areata.
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.
18 citations,
August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
8 citations,
September 2015 in “Journal of the European Academy of Dermatology and Venereology” Hair and scalp pain is more common and severe in breast cancer patients on chemotherapy than those on tamoxifen.
November 2019 in “Harper's Textbook of Pediatric Dermatology” Understanding normal hair growth and loss in children is key to diagnosing and treating hair disorders.
1 citations,
May 2016 in “Current Opinion in Pediatrics” Children's hair loss can be caused by various factors and should be treated with appropriate, age-specific methods and psychological support.
11 citations,
October 2020 in “General and comparative endocrinology” Male C57BL/6 mice show age-related fluctuations in certain hormones and their ratios in both blood and hair.
16 citations,
April 2018 in “Animal Genetics” Researchers found two genes that may explain why some Casertana pigs don't have hair.
29 citations,
March 2010 in “Cancer epidemiology” Men who start losing hair at age 30 may have a lower risk of prostate cancer.
March 2014 in “Journal of The American Academy of Dermatology” The document lists various dermatology topics, treatments, and diagnostic methods.
5 citations,
May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
1 citations,
November 2011 in “Dermatologica Sinica” Women using hair relaxers with alopecia had lower zinc levels, suggesting zinc deficiency might contribute to hair loss.