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Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.

Chemical hair straightening significantly reduces detectable drug levels in hair.

Hair testing is a reliable method for detecting workplace drug use when done with proper sample preparation and confirmation.

Lower levels of certain brain chemicals are linked to worse PTSD symptoms in men.

The method effectively detects banned substances in urine for sports antidoping.

High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.

MALDI Imaging Mass Spectrometry is a useful method for studying skin conditions, but sample preparation is crucial for accurate results.

Finasteride effectively lowers specific hormone levels, helping monitor treatment progress.

Hair analysis showed very high metformin levels in two fatal overdose cases, suggesting it's useful in forensics but sweat may affect results.

ADT-G may be a useful indicator of increased androgen levels in women with acne and can be lowered with certain birth control pills.

Researchers found markers that can tell if hair has been bleached, which could improve hair test accuracy.

ACBP is crucial for healthy skin in mice.

14,15-EET may help reduce poststroke pain by affecting certain brain proteins.

A new method accurately detects bisphenols and parabens in human hair.

High DHA levels delay wound healing and worsen skin repair quality.

The new method can measure sleep-related hormones in hair effectively and could help track long-term sleep patterns.

Losing both ERBB2 and ERBB3 receptors in mice causes significant skin problems and inflammation.

Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.

The enzyme sEH is important for hair growth and its inhibition could help treat hair loss.

Taking riboflavin and eating less lysine can help some people with a specific genetic disorder avoid brain damage.

11α-Hydroxyprogesterone is changed into different substances by certain enzymes and may play a role in prostate cancer.

PSI-MS quickly and accurately measures finasteride in tablets, helping with quality control.

Matrix effects in LC-MS can be managed but not completely avoided.

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.

Researchers developed a method to detect hormone-blocking drugs in wastewater and found them in Beijing's sewage, suggesting they can survive sewage treatment.

Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.

Method detects finasteride in plasma at very low concentrations.

Quick, selective detection of tadalafil and finasteride in human plasma developed.

Forensic hair analysis for drugs is now more reliable and accurate.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.