20 citations,
December 1995 in “Journal of Chromatography B: Biomedical Sciences and Applications” Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.
8 citations,
October 2014 in “Journal of analytical toxicology.” Chemical hair straightening significantly reduces detectable drug levels in hair.
1 citations,
August 2006 in “International forensic science and investigation series” Hair testing is a reliable method for detecting workplace drug use when done with proper sample preparation and confirmation.
59 citations,
November 2018 in “Psychoneuroendocrinology” Lower levels of certain brain chemicals are linked to worse PTSD symptoms in men.
49 citations,
December 2017 in “Journal of pharmaceutical and biomedical analysis” The method effectively detects banned substances in urine for sports antidoping.
47 citations,
January 2001 in “Journal of Investigative Dermatology” High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.
30 citations,
June 2017 in “Talanta” MALDI Imaging Mass Spectrometry is a useful method for studying skin conditions, but sample preparation is crucial for accurate results.
13 citations,
August 1997 in “Steroids” Finasteride effectively lowers specific hormone levels, helping monitor treatment progress.
7 citations,
February 2021 in “Legal Medicine” Hair analysis showed very high metformin levels in two fatal overdose cases, suggesting it's useful in forensics but sweat may affect results.
6 citations,
January 2017 in “Dermato-endocrinology” ADT-G may be a useful indicator of increased androgen levels in women with acne and can be lowered with certain birth control pills.
12 citations,
January 2020 in “Analyst” Researchers found markers that can tell if hair has been bleached, which could improve hair test accuracy.
31 citations,
July 2012 in “Journal of Lipid Research” ACBP is crucial for healthy skin in mice.
16 citations,
November 2018 in “The journal of pain/Journal of pain” 14,15-EET may help reduce poststroke pain by affecting certain brain proteins.
12 citations,
August 2022 in “Ecotoxicology and Environmental Safety” A new method accurately detects bisphenols and parabens in human hair.
8 citations,
November 2019 in “Clinical Science” High DHA levels delay wound healing and worsen skin repair quality.
5 citations,
April 2022 in “Journal of Chromatography B” The new method can measure sleep-related hormones in hair effectively and could help track long-term sleep patterns.
November 2024 in “Frontiers in Endocrinology” Hair analysis can help diagnose adrenal disorders non-invasively.
July 2024 in “Journal of Investigative Dermatology” Losing both ERBB2 and ERBB3 receptors in mice causes significant skin problems and inflammation.
July 2023 in “Drug testing and analysis (Print)” Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.
June 2022 in “Pflügers Archiv - European Journal of Physiology” The enzyme sEH is important for hair growth and its inhibition could help treat hair loss.
25 citations,
December 2005 in “Molecular Genetics and Metabolism” Taking riboflavin and eating less lysine can help some people with a specific genetic disorder avoid brain damage.
7 citations,
April 2019 in “The Journal of Steroid Biochemistry and Molecular Biology” 11α-Hydroxyprogesterone is changed into different substances by certain enzymes and may play a role in prostate cancer.
2 citations,
September 2018 in “Journal of Separation Science” PSI-MS quickly and accurately measures finasteride in tablets, helping with quality control.
323 citations,
November 2017 in “Bioanalysis” Matrix effects in LC-MS can be managed but not completely avoided.
27 citations,
April 2013 in “Reviews in endocrine and metabolic disorders” The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.
51 citations,
February 2010 in “Analytical and Bioanalytical Chemistry” Researchers developed a method to detect hormone-blocking drugs in wastewater and found them in Beijing's sewage, suggesting they can survive sewage treatment.
7 citations,
November 2004 in “International Journal of Cosmetic Science” Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.
823 citations,
February 1998 in “Analytical Chemistry” Method detects finasteride in plasma at very low concentrations.
9 citations,
February 2018 in “Journal of Pharmaceutical and Biomedical Analysis” Quick, selective detection of tadalafil and finasteride in human plasma developed.
Forensic hair analysis for drugs is now more reliable and accurate.