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Finasteride affects urinary steroid profiles and can potentially hide steroid abuse in sports drug testing.

5α-reductase inhibitors can interfere with doping tests by masking banned substances.

New tests detect finasteride and dutasteride in urine quickly and easily.

Taking Saw palmetto and Pygeum africana can change the levels of certain steroids in urine, which could cause confusion in doping tests.

The study found that urine metabolites M1b or M4 are the best indicators of ATD use in horses, with detection possible up to 77 hours in urine and 28 hours in blood.

Scientists have developed a new method to detect steroid abuse in athletes using cell-based tests, which could be the future of anti-doping methods.

Researchers developed a new method to find substances in herbs that can block a specific enzyme linked to hair loss.

A new method accurately measures nine specific hormones in human blood.

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

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

The document concludes that better biomarkers are needed to detect long-term oral testosterone use in athletes.

New signs like changes in blood markers, physical symptoms, and behavioral shifts may help detect hidden steroid use in athletes.

The 39th Manfred Donike Workshop discussed methods for detecting misuse of steroids, gene doping, and the complexity of identifying drug residues in urine, highlighting the ongoing efforts to improve global anti-doping work.

Researchers developed a reliable method to measure testosterone and epitestosterone in urine for medical and anti-doping use.

Method accurately measures finasteride concentration in medicine.

Epitestosterone may counteract testosterone's effects and has roles in body processes like prostate growth and hair distribution.

Hair analysis is better than urine and blood for detecting past drug use.

The document concludes that finasteride can reduce nandrolone detection in doping tests, suggesting frequent testing and setting metabolite level thresholds for detection.

A yeast-based test can detect the steroid methyltestosterone in urine longer than traditional methods.

Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.

Anabolic steroids can build muscle and strength but have risks and need more research on their clinical benefits and side effects.

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

New method effectively detects illegal hormones in anti-aging foods.

PSA levels could help detect illegal steroid use in female athletes but face challenges like cost and PCOS prevalence.

Human hair is a significant sample for various tests in clinical, nutritional, archaeological, and forensic studies.

The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.

Ancient hair can preserve hormones, revealing health and fertility insights.

Probe detects finasteride with high selectivity and low detection limit.

Anabolic steroids boost muscle growth, SARMs increase muscle mass and bone density without side effects, and myostatin inhibitors block a protein that stops muscle growth, but each has potential risks.

Standardized procedures are crucial for collecting and preparing biological samples to ensure accurate clinical metabolomics results.