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Blocking Wnt signaling in young mice causes thymus shrinkage and cell loss, but recovery is possible when the block is removed.

Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.

Skin bacteria, specifically Staphylococcus aureus, help in wound healing and hair growth by using IL-1β signaling. Using antibiotics on skin wounds can slow down this natural healing process.

miR-22, a type of microRNA, controls hair growth and its overproduction can cause hair loss, while its absence can speed up hair growth.

The document concludes that mouse models are crucial for studying hair biology and that all mutant mice may have hair growth abnormalities that require detailed analysis to identify.

BLIMP1 is essential for skin maintenance but not for defining sebaceous gland progenitors.

Trichohyalin is also found in the outer layers of normal human skin.

The vitamin D receptor is essential for skin stem cells to grow, move, and become different cell types needed for skin healing.

Thyrotropin-Releasing Hormone helps heal wounds in frog and human skin.

The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.

Autophagy is important for human hair growth and health.

Scientists created 3D hair-like structures that could help study hair growth and test treatments.

S100A3 protein is crucial for hair shaft formation in mice.

Endo-HSE helps grow hair-like structures from human skin cells in the lab.

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.

Researchers created a new mouse model for studying Citrullinemia Type I and similar conditions, showing symptoms and treatment responses like those in humans.

Smad1 and Smad5 are essential for hair follicle development and stem cell sleepiness.

Hair follicles are valuable for regenerative medicine and wound healing.

Certain human skin cells marked by CD44 and ALDH are rich in stem cells capable of long-term skin renewal.

A gene deletion causes the "hairless" trait in Iffa Credo rats.

lncRNA XLOC_008679 and gene KRT35 affect cashmere fineness in goats.

Activating β-catenin in certain skin cells speeds up hair growth in mice.

Blocking Wnt/β-catenin signaling with EGF receptor is necessary for proper hair growth.

α-type filaments in guinea pig hair follicles have unique structural features.

Hair and nails are similar keratin structures with different shapes and growth, affected by the same diseases and environmental factors.

miR-140-5p in certain cell vesicles helps hair growth by boosting cell proliferation.

Stem cells can help regenerate hair follicles.

Scientists created keratinocyte cell lines from human hair that can differentiate similarly to normal skin cells, offering a new way to study skin biology and diseases.

Using longer PEG chains helps nanoparticles penetrate hair follicles better, improving drug delivery for conditions like alopecia.

Wnt proteins from certain skin cells are crucial for normal hair growth and renewal.