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Accurate quantitative bioanalysis using LC-MS/MS is challenging due to matrix effects, but using internal standards and new methods like in-sample calibration could improve results.

Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.

Method measures latanoprost and minoxidil in skin accurately and precisely.

The method effectively identifies banned substances in hair loss and skin disease cosmetics.

Hair proteins have weak spots in their α-helical segments.

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

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

Blocking the Wnt pathway could lead to new treatments for cancer and tissue repair but requires careful development to avoid side effects.

The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.

Certain microRNAs are linked to various skin diseases and could be used to diagnose and treat these conditions.

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

Teriflunomide helps reduce multiple sclerosis symptoms and is safe for most patients.

Method detects finasteride in plasma at very low concentrations.

Researchers found that certain lipids, especially vitamin D3, are lower in prematurely grey hair than in pigmented hair.

A boy's growth and immune problems were caused by a new mutation in the STAT5B gene.

Anti-acne medications may work by reducing the activity of a protein involved in acne development.

The p53 protein has complex, sometimes contradictory functions, including tumor suppression and promoting cell survival.

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.

Finasteride and analogues separated using LC-MS-MS technique.

Blocking a specific protein signal can make hair grow on mouse nipples.

The mesenchyme can start hair growth, but the exact signal that causes this is still unknown.

A new, quick method was developed to analyze skin lipids, discovering a new ceramide subclass.

The conclusion is that standardizing testosterone measurement methods is essential for better diagnosis accuracy in women.

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

The method reliably profiles eicosanoids and shows epitestosterone reduces their levels, similar to common anti-inflammatory drugs.

Researchers developed a quick and sensitive way to measure finasteride in blood using a small sample size.

The new anti-acne treatment HA-P5 effectively reduces acne by targeting two key receptors and avoids an enzyme that can hinder treatment.

Removing both ovaries may better treat increased male hormone levels and related symptoms in postmenopausal women when hormone therapy doesn't work.

CSLD1 suppresses rice root hair growth with NH4+ and regulates AMT1;2 expression.

Coconut seed extract may effectively treat scabies in rabbits by killing mites and reducing inflammation.