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Testosterone is important for men's sexual function, may help some women's sexual desire, while other hormones and neurotransmitters also play complex roles in sexual behavior.

β-catenin is essential for stem cell activation and proliferation in hair follicles.

The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.

Basal cell carcinoma mostly starts from cells in the upper skin layers, not hair follicle stem cells.

Stem cell niches are crucial for regulating stem cell behavior and tissue health, and their decline can impact aging and cancer.

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

The skin has a complex immune system that is essential for protection and healing, requiring more research for better wound treatment.

Hair regeneration needs dynamic cell behavior and mesenchyme presence for stem cell activation.

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

Alopecia areata, a common autoimmune hair loss condition, often runs in families.

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

Skin fat cells help with skin balance, hair growth, and healing wounds.

Stem cells help heal skin wounds by moving and changing roles, working with other cells, and needing more research on their activation and behavior.

Different types of skin cells play specific roles in development, healing, and cancer.

Stem cell niches are crucial for regulating stem cell renewal and differentiation, and understanding them can help in developing regenerative therapies.

Dermatologists need to understand hair products to treat hair and scalp issues better.

Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.

Researchers created human hair follicles using a new method that could help treat hair loss.

A substance called DKK-1 increases in balding areas and causes hair cells to die when exposed to DHT.

Wnt ligands are crucial for hair growth and repair.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

K6hf is a unique protein found only in a specific layer of hair follicles.

Matriptase is crucial for keeping epithelial tissues healthy and functioning properly.

The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.

The document concludes that specific cells are essential for hair growth and more research is needed to understand how to maintain their hair-inducing properties.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

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.

Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.

Green tea component EGCG could potentially promote human hair growth.