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George Ernest Rogers was a notable scientist who made important discoveries about hair and wool proteins.

Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.

A specific protein in chicken embryos links early skin layers to feather development.

The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.

Keratin 17 is modified by RSK1 in response to growth and stress, affecting skin growth and stress response.

Poor maternal nutrition can lead to fewer wool follicles in Chinese Merino sheep.

Keratin-associated proteins have ancient origins and were used for different purposes before being adapted for hair in mammals.

Some hair protein genes evolved early and were adapted for use in hair follicles.

Chicken feather gene mutation helps understand human hair disorders.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

Pitx2 helps outer root sheath cells differentiate but can't start hair growth on its own.

Key genes can rewire networks, changing skin appendage types.

Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

Bmpr2 and Acvr2a receptors are crucial for hair retention and color.

Injecting CHIR-99021 into goose embryos improves feather growth by changing gene activity and energy processes.

The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.

The research shows that a gene called Wnt3 affects hair growth and structure, causing short hair and balding when overactive.

The balance between androgen receptor and p53 is crucial for sebaceous gland differentiation.

The mTurq2-Col4a1 mouse model shows how the basement membrane develops in live mammals.

New therapies are being developed that target integrin pathways to treat various diseases.

Skin lesions in Carney complex are likely caused by a specific group of skin cells that promote pigment production due to a genetic mutation.

Exosomes can help promote hair growth and may treat hair loss.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Sweat gland development involves two unique skin cell programs and a temporary skin environment.

Scientists made a mouse that shows how a specific protein in the skin changes and affects hair growth and shape.

The arrector pili muscle might play a role in hair loss and needs more research to understand its impact.

Skin problems can be caused or worsened by physical forces and pressure on the skin.

The study provides insights into hair growth mechanisms in yaks.

Certain gene mutations are linked to wool quality in sheep and could help in breeding for better wool.

Keratin 33A is a key protein in goat winter coats, especially in high-producing breeds.