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The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.

Exosomes show promise for skin and hair rejuvenation, but more research and regulation are needed before they can be widely used.

Exosomes could help with skin and hair, but more research and better methods are needed.

Feather patterns are influenced by enhancers and chromatin looping, and the structure of protein complexes important for hair growth has been detailed.

Scalp reduction can treat severe hair loss, but success depends on scalp flexibility and it may cause complications like pain, infection, and cosmetic issues.

The editor suggests removing "race" and "ethnicity" from dermatology and creating tools to objectively assess skin color and hair texture.

Hair analysis can offer clues about a person, but individual differences limit making precise identifications.

PRP is promising for skin, hair, and wound treatments but needs standardized methods and more research.

Hirsutism is excessive male-pattern hair growth in women, often treated cosmetically or with hormone therapy if contraception is also desired.

Using minoxidil with microneedling increases hair count for hair loss without serious side effects.

New factors in female hair loss include genetics, hormones, stress, and inflammation; future treatments should also focus on these areas and consider the patient's emotional well-being.

The Third World Congress of the International Academy of Cosmetic Dermatology discussed various topics like hair disorders, skin conditions, wound healing, shampoo technology, acne treatment, and the use of lasers in dermatology.

Asian men have varying hair densities, important for hair transplant success.

Sphynx cats are hairless and Devon Rex cats have curly hair due to specific genetic mutations.

Korean patients with PCOS often have skin problems like acne and excess hair, with different symptoms based on their specific PCOS type.

The horse had a rare type of hair loss caused by immune cells attacking hair follicles.

EDA2R gene linked to hair loss.

Finasteride increases hair density in female androgenetic alopecia, but individual results may vary.

Sheep and goat hair fibers are complex due to keratin-associated proteins, which are important for fiber properties and growth.

The document concludes that Borrelia afzelii causes a skin condition in France, a gene is linked to hair loss in Caucasian women, and various genetic mutations affect skin diseases.

Topical ruxolitinib failed to regrow hair in a 66-year-old with alopecia areata.

COVID-19 may cause early hair loss similar to classic temporary hair loss, with further research needed.

Follicular Unit Transplantation is an effective and safe treatment for hair loss due to scarring.

Long-term high-dose fluconazole can cause reversible hair loss.

The analysis found that alopecia areata, a hair loss condition, is not very common in Australia, affecting about 0.13% of people, with new cases most often seen in males aged 19 to 34 years.

Researchers found genetic mutations causing hypohidrotic ectodermal dysplasia in 88% of studied patients and identified new mutations and genetic variations affecting the disease.

Changes in testosterone and estrogen receptor genes can affect how men age, influencing body fat, hair patterns, and possibly leading to skin disorders.

In 2017, Spanish dermatologists commonly prescribed topical minoxidil, oral finasteride, and nutricosmetics for hair loss, with oral contraceptives also used for premenopausal women. Less common were oral dutasteride, due to side effects, and newer, more expensive treatments like topical finasteride and Low-Level Laser Therapy. The conclusion is that there's a need for prescription guidelines due to varied treatment approaches.

Plant extracts like Avicennia marina, Boehmeria nipononivea, and Camellia sinensis could potentially treat hair loss with fewer side effects than synthetic drugs.

Isotretinoin's effects and side effects, like birth defects and depression, might be due to it causing cell death in various cells.