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Different ectodermal organs like hair and feathers regenerate differently, with specific stem cells and signals involved in their growth and response to the environment.

Different stem cells are key for hair growth and health, and understanding their regulation could help treat hair loss.

Skin health and repair depend on the signals between skin stem cells and their surrounding cells.

Sweat glands and hair follicles are determined by opposing signals, with BMPs promoting sweat glands and blocking BMPs leading to hair follicles.

Using a gene therapy with the Sonic Hedgehog gene helps mice regrow hair faster after losing it from chemotherapy.

Nerve signals are crucial for hair follicle stem cells to become skin stem cells and help in wound healing.

Activating the Sonic hedgehog gene in mice can start the hair growth phase.

Sonic hedgehog helps hair follicle stem cells grow and can effectively regenerate hair follicles.

The Sonic hedgehog pathway is crucial for new hair growth during mouse skin healing.

Hes1 protein is important for hair growth and regeneration, and could be a potential treatment for hair loss.

Lhx2 is a crucial regulator of the Sonic Hedgehog signaling in early mouse retinal development.

MIM is crucial for hair follicle formation and regeneration by controlling cilia formation and hedgehog signaling through its interaction with Cortactin and Src.

Sonic hedgehog signaling is crucial for hair growth and maintaining hair follicle identity.

The article concludes that hair loss is a common side effect of drugs treating skin cancer by blocking the hedgehog pathway, but treatment should continue, and more selective drugs might prevent this side effect.

TNF family proteins are crucial for the development of skin features like hair, teeth, and mammary glands.

Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.

The study found that certain genes are important for hedgehog skin appendage development and immunity, with spines possibly evolving for protection and infection resistance.

CDP is crucial for lung and hair follicle cell development.

Laminin-511 is crucial for early hair growth and maintaining important hair development signals.

Exosomes from dermal papilla cells can help grow hair and might treat hair loss.

Heparan sulfate is important for hair growth, preventing new hair formation in mature skin, and controlling oil gland development.

A woman with a new PTCH gene mutation has both Gorlin syndrome and severe hair loss.

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

Scientists can control how skin stem cells divide by using different treatments.

New treatments for skin and hair repair show promise, but further improvements are needed.

Polygonum multiflorum extract helps grow hair by activating certain hair growth signals in mice.

Muscles and nerves that cause goosebumps also help control hair growth.

Ginseng and its compounds may help hair growth and prevent hair loss, but more human trials are needed to confirm this.

The study found that a specific area of the hair follicle helps start hair growth by reducing the blocking effects on certain cells and controlling growth signals.

Chitosan and surface-deacetylated chitin nanofibers may help treat hair loss.