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Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.

Testosterone and some of its forms can strongly stimulate oil gland growth in skin.

The proteins transthyretin and megalin are more present in the growth phase of hair, suggesting they might affect hair health and growth.

Male yak hair growth is influenced by DHT synthesis, which is promoted by 5α-red1 and AR during growth phases, while E2 may inhibit growth through ERα.

Activating the Sonic hedgehog pathway can help regenerate hair follicles during wound healing in mice, potentially improving regeneration after injury.

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

Dermal papilla cells help wounds heal better and can potentially grow new hair.

Certain proteins and their receptors are more active during the growth phase of human hair and could be targeted to treat hair disorders.

Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.

The study identified unique genes in hair follicle cells and their environment, suggesting these genes help organize cells for hair growth.

Endocannabinoids help control mast cell activity in human skin.

Disrupting Acvr1b in mice causes severe hair loss and thicker skin.

A 5-year-old boy's skin condition improved with systemic valganciclovir after a cardiac transplant and immunosuppressive therapy.

Cells from a skin condition can create new hair follicles and similar growths in mice, and a specific treatment can reduce these effects.

Scientists have made progress in understanding hair follicle stem cells, identifying specific genes and markers, and suggesting their use in treating hair and skin conditions.

Trichostasis spinulosa can be diagnosed with a simple skin biopsy and treated with specific gels, but lesions may return after stopping treatment.

Backhousia citriodora leaf extract effectively reduces oily skin across different ethnic groups.

Some skin tumors from hair follicles and glands can be linked to genetic syndromes and may be benign or malignant.

The created skin model with melanoblasts improves the study of skin color and offers an alternative to animal testing.

Vitamin D3 and its receptor are important for hair growth, and understanding receptors could help treat hair graying and skin cancer.

Hair follicle development is controlled by interactions between skin tissues and specific molecular signals.

Nerve signals are crucial for hair follicle stem cells to become skin stem cells and help in wound healing.

Skin needs dermal β-catenin activity for hair growth and skin cell multiplication.

Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.

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.

Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.

The sebaceous gland has more roles than just producing sebum and contributing to acne, and new research could lead to better skin disease treatments.

Hair follicle stem cells helped heal a severe scalp burn without needing traditional skin grafts.

Dyes can penetrate human skin and hair follicles up to 1.2 mm deep and the sebaceous gland can store dye; Indocyanine Green lotion was made for safe dyeing and monitoring.

Trichohyalin-like proteins are essential for the development of skin structures like hair, nails, and feathers.