67 citations
,
May 2013 in “Therapeutic drug monitoring” Wait 4-5 weeks after drug use before hair testing and cut hair into three segments to confirm single drug exposure.
30 citations
,
March 2012 in “Journal of Analytical Toxicology” THCCOOH levels in hair decrease from root to tip and don't match well with self-reported cannabis use.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
November 2021 in “International journal of research - granthaalayah” The document suggests that human hair has electrical charges because of a gap in nerve cell coverage that affects electromagnetic radiation.
18 citations
,
January 2019 in “Experimental Dermatology” Certain cells outside the hair follicle's bulge area can quickly regenerate damaged hair follicles, potentially helping to reduce hair loss from cancer treatments.
30 citations
,
July 2023 in “Clinical Chemistry and Laboratory Medicine (CCLM)” Cortisone in hair is a more reliable indicator of stress hormone exposure than cortisol.
Distal hair cortisol is not a reliable measure of early pregnancy cortisol levels.
138 citations
,
June 2004 in “Journal of Investigative Dermatology” Involucrin gene expression is controlled by specific proteins and signaling pathways.
May 2023 in “Frontiers in chemistry” Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.
8 citations
,
August 2018 in “Drug testing and analysis” EtG levels in hair decrease significantly after one month of alcohol abstinence.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
27 citations
,
March 2022 in “Forensic Toxicology” Micro-segmental hair analysis helps detect drug use patterns and estimate drug consumption days.
Early recognition and aggressive treatment can significantly improve rare ANA-negative lupus with heart and skin issues.
May 2016 in “Endocrine Abstracts” Proximal hair cortisol is a reliable tool for diagnosing Cushing's Syndrome.
501 citations
,
October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
28 citations
,
January 2007 in “Dermatology” Chemotherapy can cause rapid, extensive hair loss, with patterns varying between individuals.
18 citations
,
November 1994 in “Histochemical Journal” The enzyme PST is found in developing human kidneys and helps with detoxification and development.
16 citations
,
January 2015 in “Annals of Dermatology” The study found specific hair and scalp patterns for different types of hair loss in Koreans, noting racial differences affect diagnosis.
39 citations
,
November 1984 in “Journal of Cardiovascular Pharmacology” Minoxidil lowers blood pressure, increases heart rate, and improves blood flow in dogs.
19 citations
,
June 2020 in “General and comparative endocrinology” Hair cortisol is a reliable stress indicator in cattle but may not be valid for pigs.
29 citations
,
January 2020 in “Frontiers in endocrinology” Fibrodysplasia ossificans progressiva is a rare genetic disorder that causes extra bone growth and symptoms of premature aging.
41 citations
,
July 2018 in “Frontiers in Neurology” Myotonic dystrophy may be classified as a segmental progeroid disorder.
January 2023 in “Research Square (Research Square)” Hair cortisol may be a good indicator of recent mood in people with bipolar disorder.
9 citations
,
December 2002 in “Novartis Foundation Symposium” LEF1 is essential for the development of airway glands and is regulated by the Wnt/ß-catenin pathway.
55 citations
,
September 2017 in “Expert Opinion on Drug Discovery” Different factors affect where drugs are absorbed in the small intestine, which is important for effective medication use.
10 citations
,
September 2020 in “Metabolites” Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.
48 citations
,
April 2024 in “Nature Communications” The new method improves bone repair by enhancing cell loading and stability in bioprinted scaffolds.
9 citations
,
February 1981 in “Australian journal of biological sciences” Lambs fed a liquid diet showed abnormal wool and skin, which improved with more B-vitamins, suggesting a link to B-vitamin deficiency.
6 citations
,
September 2010 in “Current Urology Reports” New treatments for long-lasting erections improve outcomes but must be timely to avoid lasting damage.
1 citations
,
September 2023 in “Research Square (Research Square)” The new method improves bone repair by enhancing cell loading and stability in bioprinted scaffolds.