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Layer-by-Layer self-assembly is promising for biomedical uses like tissue engineering and cell therapy, but challenges remain in material safety and process optimization.

Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.

Keratin proteins are crucial for healthy skin, but mutations can cause skin disorders with no effective treatments yet.

Glutamine metabolism affects hair stem cell maintenance and their ability to change back to stem cells.

The conclusion is that genetic changes in the glucocorticoid receptor can lead to conditions affecting stress response, immunity, and metabolism, requiring personalized treatment.

Azathioprine's effectiveness and safety require careful monitoring and more research, especially regarding its use with corticosteroids and the role of TPMT status in patients.

Taking L-cystine and vitamin B6 can prevent hair loss caused by smoke in mice.

Potassium channel openers like minoxidil help hair grow by acting on hair follicles.

Active transdermal technologies in cosmetics help deliver skin treatments effectively, but their safety and effectiveness depend on skin type and treatment choice.

Mechlorethamine treatment regrew hair in mice by killing immune cells causing hair loss without harming hair follicles.

The study found that a specific signaling pathway helps skin wounds heal faster but may lead to larger scars.

IL-36α helps grow new hair follicles and speeds up wound healing.

The book provides detailed information on natural ingredients in beauty products and emphasizes the need for more human trials to confirm their effectiveness.

Some drugs have gained approval for new uses, while others like tricyclic antidepressants and aspirin show promise but aren't yet approved for these uses.

Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.

Human stem cells were turned into cells similar to those that help grow hair and showed potential for hair follicle formation.

Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.

A chemical called 5-Bromo-2′-deoxyuridine caused rapid hair loss in mice by killing certain skin cells through a specific cell death pathway.

Some plant-based ingredients may help with hair growth and care, but more research is needed to confirm their effectiveness.

Dermal stem cells help regenerate hair follicles and heal skin wounds.

Melatonin affects many body functions beyond sleep by interacting with specific receptors in various tissues.

Coumarin derivatives show promise as anti-estrogenic agents for treating breast cancer, with some in clinical trials.

Wnt signaling is crucial for pigmented hair regeneration by controlling stem cell activation and differentiation.

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

Blood vessels and specific genes help turn cartilage into bone when bones heal.

Early development of hair, teeth, and glands involves specific signaling pathways and cellular interactions.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

Hair, teeth, and mammary glands develop similarly at first but use different genes later.

PDGFA/AKT signaling is important for the growth and maintenance of certain skin fat cells.