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Examining nail biopsies is useful for diagnosing nail diseases.

Hair proteins change location and structure as hair cells mature.

Keratin is crucial for skin barrier formation and affects mitochondrial function.

Trichocyte filaments have a low-density core and may include proteins for hair structure.

Keratinocytes play a key role in skin health, but more research is needed.

Keratin-based scaffolds are safe and effective for tissue engineering.

Wool keratin is reactive, biocompatible, biodegradable, and can model keratin from other sources.

Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.

Keratins change and are modified differently in skin layers and body parts.

Keratin is crucial for keeping skin cells healthy and its changes can lead to diseases and affect cell behavior.

Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.

Keratin biomaterials could help heal wounds and regenerate tissue, but more testing is needed.

Normal skin cell renewal doesn't need RAR signaling, but vitamin A-related skin thickening does.

Most people on isotretinoin had chapped lips, but only a few stopped the medicine due to side effects.

Growth factors and cytokines are important for hair growth and could potentially treat hair loss, but more research is needed to overcome challenges before they can be used in treatments.

Women with PCOS often have skin problems like excessive hair, acne, hair loss, and dark patches, which can be treated with hormonal and non-hormonal therapies.

The article explains the genetic causes and symptoms of various hair disorders and highlights the need for more research to find treatments.

The best way to treat acne is to prevent healthy skin glands from turning into acne lesions by controlling the triggers early on.

Hormonal treatments are effective for severe or persistent acne and should be used with other acne therapies, considering potential side effects.

Substance P may worsen acne by increasing inflammation, but corticosteroids might help by reducing this effect.

Some skin conditions look like acne but are caused by drugs, and they usually get better when the drug is stopped.

People with atopic dermatitis are more likely to develop other skin conditions due to shared genetics and immune pathways.

Common acne treatments can cause various side effects, like skin irritation and more serious issues, but combination therapies are often more effective and better tolerated.

Older adults commonly experience wrinkles, itchy skin, psoriasis, fungal infections, skin growths, grey hair, hair loss, and nail ridging, but no skin cancer was found in this group.

Early treatment of superficial fungal infections in immunocompromised patients is crucial.

Dihydrotestosterone increases certain inflammatory signals in skin cells, potentially contributing to acne.

Minoxidil and retinol together help hair grow.

Oral retinoids are effective for treating severe skin disorders but have reversible side effects and risks for pregnant women.

Hormonal therapy is a good option for women with severe acne, especially when there's a chance of hormone imbalance.