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

Keratose, derived from human hair, is a non-toxic biomaterial good for tissue regeneration and integrates well with body tissues.

Liposomes improve drug delivery and reduce skin irritation in dermatology.

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

Modern science supports the use of some Ayurvedic plants for health, as ancient practices suggested.

Periodontal ligament stem cells show promise for regrowing tissues but require more research for safe, effective use.

Estrogen replacement can improve skin health in menopausal women but doesn't reverse sun damage or prevent hair loss.

The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.

Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.

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

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

Silver nanoparticles coated with substances like PEG showed strong antibacterial effects and improved wound healing when used in hydrogels.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

Taking selenium supplements during chemotherapy may help reduce side effects and improve health markers in ovarian cancer patients.

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

Isotretinoin effectively treats severe acne and similar conditions, but has common, mostly reversible side effects, requiring careful patient monitoring.

Foxp3 is crucial for regulatory T cell function, and targeting these cells may help treat immune disorders.

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

Finasteride effectively inhibits 5α reductase, while plant extracts like Permixon and Bazoton don't show significant results.

New targets for making and using brain-synthesized steroids could lead to better treatments for brain disorders and alcoholism.

No single treatment is consistently effective for alopecia areata, and more research is needed.

Hibiscus plant extracts may have health benefits like lowering blood pressure and protecting the heart.

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.

Fibroblast growth factor receptor signaling controls cell development and repair, and its malfunction can cause disorders and cancer, but it also offers potential for targeted therapies.

Platelet-rich plasma might help with hair growth and skin conditions, but more research is needed to prove its effectiveness and safety.

Potassium channel openers could help treat cardiovascular diseases and asthma but require better targeting to specific tissues for effective use.

Smoking harms the skin, causing early aging and increasing cancer risk, but stopping smoking can improve skin health.