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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.

Female pattern hair loss is caused by multiple factors and while treatments like topical minoxidil, hormone therapy, and low-level light therapy can help, none can fully cure it.

Keratin protein production in cells is controlled by a complex system that changes with cell type, health, and conditions like injury or cancer.

The conclusion is that understanding how hair follicle stem cells live or die is important for maintaining healthy tissue and repairing injuries, and could help treat hair loss, but there are still challenges to overcome.

Long COVID causes a wide range of long-lasting symptoms that change over time and are hard to diagnose and treat.

Researchers found that hair shedding happens mostly when new hair is growing and involves a unique process.

Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.

These skin conditions in African men need combined medical treatments and lifestyle changes.

Heparan sulfate is important for hair growth, preventing new hair formation in mature skin, and controlling oil gland development.

Cicatricial alopecia, a permanent hair loss condition, is mainly caused by damage to specific hair follicle stem cells and abnormal immune responses, with gene regulator PPAR-y and lipid metabolism disorders playing significant roles.

Hair growth and pigmentation in mice involve specific stages crucial for research.

Dermatoscopy and videodermatoscopy are useful for diagnosing and monitoring various skin, hair, and nail conditions.

The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.

The conclusion is that understanding how feathers and hairs pattern can help in developing hair regeneration treatments.

Hair problems can be caused by genetics or the environment, and treatment should focus on the cause and reducing hair damage.

The document provides advice on how to recognize and treat skin-related side effects of cancer drugs known as EGFR inhibitors.

The new microrhizotron tool effectively observes and measures pepper plant roots non-destructively.

A substance from hair follicle stem cells helps heal skin wounds in diabetic mice by promoting cell growth and preventing cell death.

Surgeons need to understand natural hair patterns for better hair restoration results.

Obstetrician/gynecologists can diagnose and manage female hair loss with careful history taking and examination.

A Turkish family with sparse hair and eyebrow loss has a mutation in the U2HR gene linked to Marie Unna hereditary hypotrichosis.

Most hair loss in children is caused by a few common conditions and is easy to diagnose, but rare types require careful evaluation.

Horse skin diseases are complex to manage and often require a biopsy for accurate diagnosis and treatment.

The document explains the difficulty in diagnosing and treating brain diseases caused by the immune system and stresses the need for quick and accurate tests.

Caffeic acid helps protect rats from the harmful effects of acrylamide.

Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.

The main prostate diseases in dogs are benign growth, infections, and cancer, with various treatments ranging from drugs to surgery, but cancer treatments have limited success.

Geriatric Julia Creek dunnarts often suffer from reproductive and skin diseases, impacting conservation efforts.

Inhibiting AP1 in mice skin causes structural changes and weakens the skin barrier.

Environmental factors like diet and vitamin levels, especially Vitamin D, can affect autoimmune diseases differently, with lifestyle changes potentially improving outcomes.