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Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

Prolactin affects hair growth cycles and can cause early hair follicle regression.

Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.

Skin aging is caused by stem cell damage and can potentially be delayed with treatments like antioxidants and stem cell therapy.

Women with PCOS have higher 5α-reductase activity, which may be linked to insulin resistance.

Genomic approach finds new possible treatments for hair loss.

Short telomeres contribute to aging and cancer, and while telomerase can delay aging, it may also promote cancer.

HIF-1α stimulators, like deferiprone, work as well as popular hair loss treatments, minoxidil and caffeine, in promoting hair growth.

The document concludes that hair loss is complex, affects many people, has limited treatments, and requires more research on its causes and psychological impact.

Androgens and androgen receptors are important for metabolic health, affecting how the body uses glucose and fats through mitochondrial function.

Maintaining DNA integrity in stem cells is crucial to prevent aging and cancer.

Ovol2 is crucial for hair growth and skin healing by controlling cell movement and growth.

Photobiomodulation therapy using red and near-infrared light can reduce inflammation and aid in healing various conditions.

The conclusion is that using drugs to block the TOR pathway might slow aging and prevent age-related diseases.

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

The document concludes that insulin resistance is key in PCOS development and early treatment is crucial to prevent complications.

Melatonin in the skin helps protect against damage from stress and UV rays, and could be used to treat certain skin conditions.

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

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

The conclusion is that accurate diagnosis of different types of hair loss requires good teamwork between skin doctors and lab experts.

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.

Stress-related substance P may lead to hair loss and negatively affect hair growth.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

The document concludes that understanding the sebaceous gland's development and function is key to addressing related skin diseases and aging effects.

Correct skin biopsy techniques are crucial to avoid misdiagnosis of skin diseases.

A certain smell receptor in hair follicles can affect hair growth when activated by a synthetic sandalwood scent.

Environmental factors, hormones, nutrition, and stress all significantly affect skin health and aging.