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Pig skin is a good substitute for human skin to measure drug absorption, but differences in skin structure and enzymes across species must be considered.

Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.

Transplant success has improved with better immunosuppressive drugs and donor matching.

Protoporphyrin IX is useful in cancer treatment but can cause health problems if not properly regulated.

Eating less sugar, milk, and saturated fats and more vegetables and fish may help treat and prevent acne.

Exosomes could potentially enhance tissue repair and regeneration with lower rejection risk and easier production than live cell therapies.

Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

Men generally have more severe COVID-19 cases and higher death rates than women due to biological differences.

Substances from Chinese medicines show promise for immune support and disease prevention, but the way they are processed affects their effectiveness.

Fat cells in the skin help start healing and form important repair cells after injury.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Understanding how cells die in the skin is important for treating skin diseases and preventing hair loss.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.

Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.

The hydrogel with a 1:3 ratio of hydroxyethyl cellulose to hyaluronic acid is effective for delivering drugs through the skin to treat acne.

Macrophages help regrow hair by activating stem cells using AKT/β-catenin and TNF.

Lignans and neolignans from plants may help protect against various health issues, including cancer and heart disease.

Researchers found a new gene area linked to male-pattern baldness, which, along with another gene, significantly increases the risk of hair loss in men.

Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.

Olive oil compounds may help prevent cancer in animals, but human results are mixed.

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

Nerves and chemicals in the body can affect hair growth and loss.

The document concludes that certain genetic mutations and dietary factors are involved in acne development, and treatments like isotretinoin and diet changes can help manage it.

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

No treatment fully prevents hair loss from chemotherapy yet.

Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.

Growth factors are crucial for hair development and could help treat hair diseases.

Wool follicles are complex, involving interactions between different cell types and structures.

Scientists made the first metal-based compounds from a nonsteroidal antiandrogen drug, which showed potential in fighting both hormone-dependent and independent prostate cancer cells.

Cholesterol sulfate buildup due to a genetic mutation disrupts the skin barrier, leading to the scaling skin seen in X-linked ichthyosis.