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Both a lock of hair and a single hair strand can show chronic drug use, but at least six single hairs are needed for accurate results.

Microscopic hair analysis is important in forensics but has limitations; new technologies are improving its accuracy.

A hair test shows promise for early mood disorder diagnosis.

Hair testing is effective for detecting long-term drug use.

Laser ablation ICP-MS is effective for tracking trace elements in polar bear hair over time.

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

Consider TFI in facial hypopigmentation diagnoses and confirm with a biopsy.

Truncated LTBP-1 disrupts TGF-beta signaling, affecting hair growth.

The CTLA-4 gene change studied does not affect Polycystic Ovarian Syndrome in the women tested.

Low-coverage sequencing is a cost-effective way to find genetic factors affecting rabbit wool traits.

Plucked hair follicles can help diagnose scalp lupus.

GSH-T levels in hair follicles are similar in smokers and non-smokers and don't increase with certain treatments.

Hair analysis is crucial for diagnosing, managing, and monitoring addiction.

Shrinking of oil glands in the skin is a key sign of hair loss linked to TNF inhibitor drugs and may improve if the treatment is stopped.

A new method accurately determines hair blood type and can be used on dust samples.

The document concludes that the fast-growing direct-to-consumer genetic testing market lacks sufficient regulation, posing risks to consumers due to questionable test quality and accuracy.

The CTLA-4 gene polymorphism does not affect polycystic ovarian syndrome.

Oral tofacitinib can significantly improve recalcitrant lichen planopilaris.

TrichoScan accurately measures hair growth and showed improved hair counts and thickness after finasteride treatment.

Tofacitinib effectively treated a woman's complex autoimmune and autoinflammatory disorders.

Autofluorescence can sort plant cells without labeling.

Researchers developed a new method to clearly see and label hair proteins with minimal errors using advanced freezing and microscopy techniques.

OCT can effectively examine and reveal details about human hair and scalp conditions.

A mother and her two daughters got a skin infection from their cat.

DNA profiling in forensics has improved, but predicting physical traits and ancestry from DNA has limitations and requires ethical consideration.

The Cross-section Trichometer is a new tool that can measure hair quantity and detect hair loss and growth.

Bobby Limmer was crucial in developing a hair transplant method that uses natural hair groupings for a more realistic look.

Hair analysis alone can't confirm long-term drug exposure in children under 1 year old.

Corkscrew hair may be a new sign for quickly diagnosing scalp fungus in black children.

The method effectively measures lipid changes and drug effects on skin follicles.