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New imaging techniques show testosterone delays hair growth and shrinks follicles in mice, but have limited depth for viewing.

A woman's progressive hair loss was correctly diagnosed as a rare condition called fibrosing alopecia in a pattern distribution after initially being mistaken for a more common type.

Androgenetic alopecia is a long-term, immune-related disorder that starts during puberty due to androgen secretion, and it might be improved with iron tablets, platelet transfusion, and anti-inflammation therapy.

Hard α-keratin in hair has a unique, nonordered structure, different from other fibers.

CEFFE injections effectively and safely improve postinflammatory hyperpigmentation.

Minimally invasive glaucoma surgery can effectively manage glaucoma in GAPO syndrome when other treatments fail.

Researchers successfully grew hair follicle stem cells from mice and humans, which could be useful for tissue engineering and regenerative medicine.

Domestic cat hair varies in thickness and length, with guard hairs being longest and thickest, and all hair types mainly contain keratin.

Animal hair from 18th-century Mazamet burial sites shows locals used goat, badger, cow, or horse fur for clothing, indicating modest economic status.

A horse in Brazil had seasonal hair loss possibly linked to light exposure and melatonin levels.

Hormonal changes and conditions like polycystic ovarian syndrome are major causes of adult acne in women, with varying prevalence among different ethnicities.

Microstimulation of certain facial and mouth nerves can evoke specific sensations, while deeper nerves may require multiple stimulations to affect perception.

Microneedles can cause side effects like infection and allergic reactions, and precautions like test spots and sunscreen are recommended.

Anti-androgens can help manage some PCOS symptoms better than metformin but are not more effective than placebos or birth control pills for other symptoms.

Spironolactone may help women with hidradenitis suppurativa.

Hair microscopy is a simple and cost-effective method to help diagnose systemic diseases in children.

Stem cells from hair follicles in a special gel show strong potential for bone regeneration.

Most women aged 20-40 in the study lost hair diffusely and in volume over 6 weeks to 6 months, mainly due to telogen effluvium, often without a clear cause.

Comprehensive genetic testing and international collaboration are crucial for better understanding and managing Ehlers-Danlos syndromes.

A man with syphilitic alopecia and neurosyphilis was successfully treated with penicillin, leading to symptom improvement and resolution of hair loss.

Melasma's causes include genetics, sun exposure, hormones, and oxidative stress, and understanding these can help create better treatments.

Healthy lifestyle changes, especially weight loss, can improve symptoms and overall health in people with Polycystic Ovary Syndrome, especially if they are overweight or obese.

The document concludes that hair analysis is not good for assessing nutrition but can detect long-term heavy metal exposure.

Ovulation disorders are a major cause of infertility and menstrual problems in women.

Finasteride may cause gum problems, but stopping the drug can improve these issues.

Over 50% of women over 50 experience hair loss, with minoxidil being the only proven effective treatment.

Rodent models of PCOS show some hormone changes similar to humans, but also have key differences.

Vitamin E helps reduce PCOS symptoms and improves hormonal balance.

Pseudopelade of Brocq is a unique hair loss condition, but its cause and development are still not fully understood.

Secondary amenorrhea has many causes and requires thorough evaluation to treat and restore menstrual cycles.