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Human hair follicles switch between active and resting phases unpredictably.

Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.

Most vertebrates can regenerate skin, nails, and corneas, but only some can regenerate teeth and lenses.

Stem cells can help regenerate hair follicles.

A long-acting Vitamin C derivative helps hair grow by stimulating cells and increasing growth factors.

Early development of hair, teeth, and glands involves specific signaling pathways and cellular interactions.

Nonpalmoplantar skin cells can be made to express keratin 9 by interacting with palmoplantar fibroblasts.

Hair follicles and deer antlers regenerate similarly through stem cells and are influenced by hormones and growth factors.

Advancements in hair biology include new treatments and tools for hair growth and alopecia.

Different small areas within hair follicles send specific signals that control what type of cells stem cells become.

Hair, teeth, and mammary glands develop similarly at first but use different genes later.

Current hair regeneration methods show promise but face challenges in maintaining cell effectiveness and creating the right environment for hair growth.

The document concludes that while lab results for hair growth promotion are promising, human trials are needed and better testing methods should be developed.

Hair and skin healing involve complex cell interactions controlled by specific molecules and pathways, and hair follicle cells can help repair skin wounds.

Scaffold-based strategies show promise for regenerating hair follicles and teeth but need more research for clinical use.

Hair regeneration needs dynamic cell behavior and mesenchyme presence for stem cell activation.

Certain genes are more active in baby scalp cells and can help grow hair when added to adult mouse skin cells.

A new method using a microfluidic device can prepare hair follicle germs efficiently for potential use in hair loss treatments.

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.

Understanding gene expression in hair follicles can reveal insights into hair growth and disorders.

Blocking a specific protein signal can make hair grow on mouse nipples.

The document concludes that regenerating functional ectodermal organs like teeth and hair is promising for future therapies.

The conclusion is that proper signaling is crucial for hair growth and development, and errors can lead to cancer or hair loss.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Fingerprints form uniquely before birth due to specific genetic pathways and local signals.

Mechanical force is important for the first contact between skin cells and hair growth in mini-organs.

GasderminA3 is important for normal hair cycle transitions by controlling Wnt signaling.

The conclusion is that certain cell interactions and signals are crucial for hair growth and regeneration.

BMPs are crucial for hair growth and their decrease by androgens leads to hair loss.