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COVID-19 can cause various skin issues, but long-term skin problems are rare.

Pangolins have lost some skin-related genes, but kept others, showing complex skin evolution.

Prdm1 is necessary for early whisker development in mice but not for other hair, and its absence changes nerve and brain patterns related to whiskers.

Reflectance spectroscopy can noninvasively track hair growth stages by measuring skin reflectance and melanin changes.

The document explains different hair and scalp conditions, including common hair loss after pregnancy or illness, drug-induced hair loss, hereditary excessive hair growth, patterned baldness, autoimmune hair loss, and permanent loss due to skin disease, with generally limited treatment options.

The document concludes that secondary syphilis cases are increasing and often misdiagnosed, pityriasis rubra pilaris can be distinguished from psoriasis by skin cell features, and different skin layers produce specific components during skin repair.

The research found specific genes and proteins that affect how fast chickens' feathers grow, which is not solely determined by traditional inheritance patterns.

Many patients experienced hair loss after COVID-19, with women affected more, starting on average 49 days post-infection.

Most older adults experience pattern hair loss due to shrinking hair follicles, with men and women showing different balding patterns.

The article concludes that proper antifungal treatment is essential for treating scalp fungal infections in children, and trichoscopy is useful for diagnosis and monitoring.

Keratins help protect cells, aid in cancer diagnosis, and influence cancer behavior and treatment.

Chemotherapy can cause various skin reactions, with hair loss being the most common, and proper diagnosis and treatment of these reactions are important.

Dermoscopy is a useful tool for identifying features of skin conditions, but more research is needed to define its role in dermatology.

Trichoscopy is a useful tool for diagnosing different hair and scalp diseases by their unique visual features.

Epirubicin is as effective as doxorubicin for cancer treatment with less heart damage, but doesn't work on doxorubicin-resistant cancers.

Male and female skin differ due to hormones, affecting conditions like hair loss, acne, and skin cancer, and suggesting a need for gender-specific treatments.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Skin's Regulatory T cells are crucial for maintaining skin health and could be targeted to treat immune-related skin diseases and cancer.

Fetal wound healing changes with development, affecting inflammation and collagen, which may influence scarring.

We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.

Chemotherapy often causes temporary hair loss, which is distressing and needs better treatment and support.

5α-reductase is essential for male sexual development and its inhibitors have potential in treating various conditions related to hormone action.

Using nanostructured lipid carriers to deliver spironolactone could improve treatment for hair loss.

To diagnose hair loss, use a systematic approach including history, exams, and tests.

The VVG stain effectively differentiates scar tissue from normal skin and helps classify types of permanent alopecia.

Trichoscopy is a quick, noninvasive method to diagnose hair and scalp disorders, often reducing the need for biopsies.

Some breast cancer chemotherapy can cause permanent hair loss.

Dermoscopy improves diagnosis and treatment monitoring for children's skin infections, inflammations, and hair disorders.

Chinese men have lower AGA rates than Caucasians, with type III vertex most common; family history is important.