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Hair from breast cancer patients shows changes in structure and composition, and a test using these changes detected cancer but also falsely identified some healthy samples as cancerous.

These methods help understand DNA changes in mouse skin.

Researchers created an efficient method to extract DNA from marmoset hair, avoiding blood chimerism.

A trial found that using finasteride, a hair growth drug, can be effectively measured by comparing before and after photos.

Thermal imaging is a useful non-invasive method to diagnose active inflammation in frontal fibrosing alopecia.

Some blood donors on teratogenic drugs may have unsafe drug levels, suggesting a need for better deferral policies.

The ATP assay can measure skin microbiome changes and recovery, with ethanol-treated skin taking longer to recover than tape-stripped skin.

External agents penetrate skin more easily in areas with fewer lipids, especially through hair follicles.

Hair protein composition is similar across different races and shapes.

A thorough history and examination are crucial for diagnosing skin diseases, which affect up to a third of people. This includes details about skin lesions, medication, general health, lifestyle, family, and contacts, as well as examining the rash, hair, nails, and mucous membranes. Changes in hair and nails can also indicate other medical and skin disorders.

Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.

AFM can diagnose hair disorders by revealing detailed hair surface changes.

Atomic Force Microscopy is a more accurate way to assess hair damage and the effect of cosmetic treatments.

Infrared techniques reveal glycogen, unsaturated lipids, and calcium compounds in hair.

Dermoscopy is a useful tool for diagnosing female pattern hair loss.

A dermatoscope is important for evaluating hair transplants and managing patient expectations.

Genetic testing can help diagnose skin conditions but needs more research for full effectiveness.

Hair analysis can detect testosterone in horses after drug administration.

Dermatoscopy and videodermatoscopy are useful and reliable for tracking treatment progress in various skin conditions.

Finasteride remains stable for two years with proper storage.

A quick method was developed to detect banned substances in urine for doping control.

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.

Correct skin biopsy techniques are crucial to avoid misdiagnosis of skin diseases.

The document provides a detailed method for analyzing gene expression in skin samples with hair follicles.

A new green method accurately measures finasteride and tadalafil in drugs and plasma.

The method effectively images and correlates elements and metabolites in tissue samples at a micron scale.

Systematic end-of-trial biopsies are the most reliable way to assess outcomes.

The method successfully visualizes iodine in biological tissues.

Collecting hair for cortisol analysis is possible in low-income mother-toddler pairs.