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Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.

Lichen planopilaris is a rare, chronic condition causing hair loss, mainly in middle-aged women, and early treatment is important to prevent permanent baldness.

Researchers found new hair and nail genes, how hair reacts to UV, differences in white and pigmented hair growth, nerve changes in alopecia, treatments for baldness and alopecia, a toenail condition linked to a genetic disorder, and that nail fungus is more common in people with psoriasis.

Mice without the vitamin D receptor have bone issues and other health problems, suggesting vitamin D is important for preventing various diseases in humans.

The document concludes that better targeted treatments are needed for wound healing, and single-cell technologies may improve cell-based therapies.

The document concludes that skin stem cells are important for hair growth and wound healing, and could be used in regenerative medicine.

Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.

Epithelial stem cells are crucial for tissue renewal and repair, and understanding them could improve treatments for damage and cancer.

Experts recommend using evidence-based methods to diagnose and treat hirsutism, focusing on symptoms and underlying causes.

Lgr5 is a marker for active, self-renewing stem cells in the intestine and skin, important for tissue maintenance.

Super-enhancers controlled by pioneer factors like SOX9 are crucial for stem cell adaptability and identity.

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

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

Certain proteins, Lgr5 and Lgr6, are important markers of adult stem cells and are involved in tissue repair and cancer development.

The skin's layers protect, sense, and regulate the body's internal balance, but can be prone to cancer.

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

Polymeric nanoparticles show promise for treating skin diseases.

Growing human skin cells in a 3D environment can stimulate new hair growth.

TGF-β is crucial for tissue repair and can cause diseases if not properly regulated.

Middle-aged women with chronic telogen effluvium experience increased hair shedding but usually don't get significantly thinner hair.

Stem cells are crucial for skin repair and new treatments for chronic wounds.

AGA causes hair loss by shrinking hair follicles due to DHT binding, and can be treated with finasteride and minoxidil.

Nerves are crucial for the regeneration of various body parts in many animals.

The document concludes that understanding hair follicle biology can lead to better hair loss treatments.

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

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

The document provides a method to classify human hair growth stages using a model with human scalp on mice, aiming to standardize hair research.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Hair follicles help absorb and store topical compounds, aiding targeted drug delivery.

Androgens can both increase and decrease hair growth in different parts of the body.