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Calcium signals and SHH guide the direction of feather growth in chicken skin.

Aging reduces skin cell renewal and defense against germs due to TGFbeta, but blocking TGFbeta could help restore these functions.

CD4+ skin cells may be precursors to basal cell carcinoma.

Scientists created complete hair-like structures by growing mouse skin cells together in a special gel.

Hair follicle stem cells from Arbas Cashmere goats can become fat, nerve, and liver cells.

PDGFA/AKT signaling is important for the growth and maintenance of certain skin fat cells.

The document suggests that activating autophagy might help with regeneration by removing old and damaged cells.

Iris germanica rhizome-derived exosomes help protect skin cells from oxidative stress and aging.

The flap assay grows the most natural hair but takes the longest, the chamber assay is hard work but gives dense, normal hair, and the patch assay is quick but creates poorly oriented hair with some issues.

Quercetin significantly helps hair growth by activating hair follicles and improving blood vessel formation around them.

Skin cells called dermal fibroblasts are important for skin growth, hair growth, and wound healing.

The study concluded that a protein important for hair strength is regulated by certain molecular processes and is affected by growth phases.

Skin aging is caused by stem cell damage and can potentially be delayed with treatments like antioxidants and stem cell therapy.

Mice without the vitamin D receptor have bone issues and other health problems, suggesting vitamin D is important for preventing various diseases in humans.

Skin development in mammals is controlled by key proteins and signals from underlying cells, involving stem cells for maintenance and repair.

Environmental factors at different levels control hair stem cell activity, which could lead to new hair growth and alopecia treatments.

Activating Nrf2 protects human hair follicles from oxidative stress and helps prevent hair growth inhibition.

CO₂ laser treatment is fast and effective for some benign skin tumors with minimal side effects.

Kaempferol helps skin stem cells grow and may improve skin thickness due to its 3-OH group.

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

Mice with human gene experienced hair loss when treated with DHT.

Exosomes can improve skin health and offer new treatments for skin repair and rejuvenation.

SCD-153 shows promise as an effective topical treatment for alopecia areata.

LED light therapy is effective for skin and hair treatments but requires careful use to minimize risks.

Eating grape powder may reduce the severity of skin allergy symptoms.

Epidermal stem cells show promise for treating orthopedic injuries and diseases.

Special proteins are important for skin balance, healing, and aging, and affect skin stem cells.

Plasma-activated liquid can kill harmful cells, speed up wound healing, and potentially treat cancer without damaging healthy cells.

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

3D bioprinting is advancing in plastic and reconstructive surgery, especially for creating tissues and improving surgical planning, but faces challenges like vascularization and material development.