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Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.

Microneedle technology has improved drug delivery and patient comfort but needs more research for broader use.

Bird foot scales develop differently and can repair but not fully regenerate due to the lack of specialized stem cell areas.

PlacMA hydrogels from human placenta are versatile and useful for cell culture and tissue engineering.

Cornification is how skin cells die to form the protective outer layer of skin, hair, and nails.

Plant-based compounds can improve wound dressings and skin medication delivery.

TGM3 is important for skin and hair structure and may help diagnose cancer.

Chitosan, a natural substance, can be used to create tiny particles that effectively deliver various types of drugs, but more work is needed to improve stability and control of drug release.

Biomimetic scaffolds are better than traditional methods for growing cells and could help regenerate various tissues.

K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.

Hair straightening can damage hair and pose health risks, including exposure to carcinogens and hair loss.

TGF-β is crucial for tissue repair and can cause diseases if not properly regulated.

Scarring alopecias are complex hair loss disorders that require early treatment to prevent permanent hair loss.

3D cell-derived matrices improve tissue regeneration and disease modeling.

The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.

AP collagen peptides improve hair elasticity and gloss.

Hydrogel composites have great potential in regenerative medicine, tissue engineering, and drug delivery.

Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.

The conclusion is that accurately replicating the complexity of the extracellular matrix in the lab is crucial for creating realistic human tissue models.

Athletes need effective management of skin disorders for their performance and well-being.

Different oils affect hair flexibility and strength, with their impact varying on whether hair is virgin or bleached.

Ice-skating athletes often have skin problems due to cold, infections, and inflammation, needing careful treatment and prevention.

Immigrant Latino workers in North Carolina, especially in poultry processing, often have skin diseases like fungal infections and acne.

Hyaluronic acid and versican are important for skin healing and hair growth and might help in regenerative medicine.

Electrospun matrices help regenerate skin and hair follicles using PCL and collagen scaffolds.

Researchers created immortal human skin cells with constant testosterone receptor activity to study hair loss and test treatments.

Polyurethane dressings show promise for wound healing but need improvements to adapt better to the healing process.

The document concludes that effective acne treatment requires a personalized combination of therapies and long-term commitment, with retinoids being important for maintenance.

A gene deletion in mice causes weak protein, immune issues, hair loss, airway problems, and wasting disease.

Lipids are important for healthy hair, but their exact role is not fully understood and needs more research.