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

Pilocarpin can cause hair regrowth and color change in some cases but not in others, and it may have side effects in animals.

Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.

Cyclosporine A promotes hair growth and prolongs the active growth phase in human hair follicles, but may work differently than in rodents.

Hox genes control hair follicle stem cell regeneration in different body regions.

Hair follicle cloning is possible but faces many challenges before it can replace traditional hair transplants.

Feathers become harder as they develop due to a change in keratin type.

Activins and follistatins, part of the TGFβ family, are crucial for hair follicle development and skin health, affecting growth, repair, and the hair cycle.

Hair follicles form hard α-keratin filaments in four steps, showing structural differences.

A 14-year-old boy was diagnosed with a rare hair condition that may lead to hair thinning and has no known effective treatments.

Understanding hair growth involves complex interactions between molecules and could help treat hair disorders.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Sprouty and FGF balance is crucial for normal feather shape and size.

Scientists created feather buds in lab-grown chick skin using specific cell interactions.

Newly divided skin cells quickly move to join skin structures due to tissue tension and specific signals.

Newly born mesenchymal cells quickly spread out in response to tissue tension during early development.

Inhibiting Bmp signaling disrupts hair growth and differentiation.

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

Dlx3 is essential for hair growth and regeneration.

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

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

Researchers identified specific genes that are important for mouse skin cell development and healing.

Follicular Cell Implantation might become a new treatment for hair loss and could lead to advances in organ regeneration.

Organs like hair follicles can renew themselves in complex ways, adapting to different needs and environments.

Hair restoration techniques have improved but still rely on limited donor hair, with new methods like cloning and gene therapy being explored.

Human hair follicles may provide a noninvasive way to diagnose diseases and have potential in regenerative medicine.

Hox genes control hair growth patterns in mammals by regulating stem cell activity in the skin.

Hair follicles in the back of the rosette fancy mouse have reversed orientations due to a gene mutation.

The study concluded that changing the culture conditions can cause sika deer skin cells to switch from a flat to a 3D pattern, which is important for creating hair follicles.