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Hyaluronic acid increases collagen synthesis safely, while poly-L-lactic acid may cause complications by affecting fibroblasts.

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.

Human skin can provide stem cells for tissue repair and regeneration, but there are challenges in obtaining and growing these cells safely.

3D bioprinting improves wound healing by precisely creating scaffolds with living cells and biomaterials, but faces challenges like resolution and speed.

The best method for urethral reconstruction is using hypoxia-preconditioned stem cells with autologous cells on a vascularized synthetic scaffold.

The new wound dressing helps skin heal faster and fights infection.

A gene variant increases the risk of a type of hair loss by affecting hair protein production.

Genetically modified stem cells from human hair follicles can lower blood sugar and increase survival in diabetic mice.

3D bioprinting in plastic surgery could lead to personalized grafts and fewer complications.

Certain natural and synthetic compounds may help treat inflammatory skin diseases by targeting a specific signaling pathway.

New materials that better mimic natural skin structure could improve healing, especially for chronic wounds.

Overexpression of sPLA2-IIA in mouse skin reduces hair stem cells and increases cell differentiation through JNK/c-Jun pathway activation.

Special gels help heal diabetic foot sores and reduce the risk of amputation or death.

The gel with icariin speeds up wound healing, reduces scarring, and helps hair growth by controlling BMP4 signaling. It also reduces inflammation and improves wound quality in mice, adapts to different wound shapes, and gradually releases icariin to aid healing. It also prevents too much collagen and myofibroblast formation during skin healing.

The review concludes that innovations in regenerative medicine, tissue engineering, and developmental biology are essential for effective tissue repair and organ transplants.

New synthetic polymers help improve skin wound healing and can be enhanced by adding natural materials and medicines.

Tissue engineering could be a future solution for hair loss, but it's currently expensive, complex, and hard to apply in real-world treatments.

Using Platelet-Rich Plasma and Adipose-Derived Mesenchymal Stem Cells together can improve healing, including wound healing, bone regeneration, and hair growth.

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

Obesity can worsen wound healing by negatively affecting the function of stem cells in fat tissue.

The substances improved hair regrowth and protected hair cells in humans and mice.

Sheep-derived factors improve human hair cell clustering, which may help hair growth.

Chitosan scaffolds with silver nanoparticles effectively treat infected wounds and promote faster healing.

Nanofiber scaffolds help wounds heal by delivering drugs directly to the injury site.

Fat-derived stem cells show promise for treating skin issues and improving wound healing, but more research is needed to confirm the best way to use them.

Mesenchymal stem cells show promise for treating various skin conditions and may help regenerate hair.

Stem cells could potentially rebuild missing structures in wounds, improving facial skin replacement techniques.

Hydrogels combined with extracellular vesicles and 3D bioprinting improve wound healing.

Adipose-derived stem cells help heal burns but need more research.

DNA methylation likely doesn't cause different lambskin patterns in Hu sheep.