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Fasting in hens affects thyroid hormones, which regulate feather and hair growth.

Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.

Sex hormones, especially estradiol, can change chicken feather shapes and colors.

Feather patterns form through genetic and epigenetic controls, with cells self-organizing into periodic patterns.

Hormones during pregnancy and lactation keep skin stem cells inactive, preventing hair growth.

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

Good feather growth in poultry needs the right balance of proteins, amino acids, minerals, and vitamins.

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

Scientists have developed a method to keep chicken feather follicles alive and structurally intact in a lab for up to a week.

The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.

Sex hormones affect hair and feather growth and may help manage alopecia and hormone-dependent cancers.

The conclusion is that understanding how feathers and hairs pattern can help in developing hair regeneration treatments.

The conclusion is that understanding how patterns form in biology is crucial for advancing research and medical science.

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

Nanoparticles improve minoxidil skin permeation, but more research needed for effective hair growth.

Changing light exposure can affect hair growth timing in goats, possibly due to a key gene, CSDC2.

The conclusion is that skin and hair patterns are formed by a mix of cell activities, molecular signals, and environmental factors.

Hair follicles are essential for skin health, aiding in hair growth, wound healing, and immune function.

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

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

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.

Wnt signaling is crucial for skin and hair development and its disruption can cause skin tumors.

Light can turn on hair growth cells through a nerve path starting in the eyes.

Hair growth is influenced by various body and external factors, and neighboring hairs communicate to synchronize regeneration.

ALA-PDT is effective and safe for chronic X-ray dermatitis, providing complete or partial remission.

Different hair growth problems are caused by genetic issues or changes in hair growth cycles, and new treatments are being developed.

Immune cells affect hair growth and could lead to new hair loss treatments.

Skin patterns are formed by simple reaction-diffusion mechanisms.

Monkeys with more anxious or inhibited temperaments tend to have less hair loss.