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The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

Melatonin helps regulate hair growth and protects the hair follicle from stress.

Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.

The document concludes that assessing hair follicle damage due to cyclophosphamide in mice involves analyzing structural changes and suggests a scoring system for standardized evaluation.

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

No treatment fully prevents hair loss from chemotherapy yet.

Drosha and Dicer are essential for hair follicle health and preventing DNA damage in skin cells.

Dermal Papilla cells are a promising tool for evaluating hair growth treatments.

Costunolide may have multiple health benefits, including promoting hair growth and protecting against cancer and diabetes, but more research is needed.

Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.

Blue light promotes hair growth by interacting with specific receptors in hair follicles.

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

Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.

Androgens are important for normal ovarian function and estrogen production, but may not be the main cause of follicle death.

Wnt1a-conditioned medium from stem cells helps activate cells important for hair growth and can promote hair regrowth.

PRP treatment may stimulate hair growth by promoting blood vessel formation, increasing growth factors, and preventing cell death.

The conclusion is that individual differences in COVID-19 severity are influenced by factors like age, sex, race, and genetics, which are important for personalized medicine.

Two-photon microscopy helps observe hair follicle stem cell behaviors in mice.

The guide explains how to study human and mouse sebaceous glands using various staining and imaging techniques, and emphasizes the need for standardized assessment methods.

Stem cells help repair tissue mainly by releasing beneficial substances, not by replacing damaged cells.

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

Disrupting Stat3 in hair follicle stem cells greatly reduces skin tumor formation.

Sorafenib helps some advanced cancers alone or with other treatments, but not all, and research continues to improve its use.

LED light therapy may help hair growth by activating certain cell pathways.

Current and future treatments for alopecia areata focus on immunosuppression, immunomodulation, and protecting hair follicles.

Alopecia Areata is a complex, unpredictable autoimmune hair loss condition with limited treatment options and a significant psychological impact.

Melatonin protects skin against UV damage by regulating various cellular processes.

Stress in mice delays hair growth and treatments blocking substance P can partly reverse this effect.

Gata6 is important for protecting hair growth cells from DNA damage and keeping normal hair growth.

The new lab-grown skin model is good for testing sunscreen's protection against DNA damage from UV light.