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Cell aging can be both good and bad for tissue repair.

PTHrP and its receptor can control blood vessel growth and hair development in mouse skin.

Wounds heal without scarring in early development but later result in scars, and studying Wnt signaling could help control scarring.

Lysophosphatidic acid is important for skin health and disease, and could be a target for new skin disorder treatments.

A specific DNA region is crucial for Foxn1 gene expression in thymus cells but not in hair follicles.

The document concludes that MGRN1 affects mouse fur color by interfering with a receptor's signaling, but its full role in the body is still unknown.

Retinoic acid affects skin and hair health by working with specific receptors, and its absence can lead to hair loss and skin changes.

Cells from certain embryo parts can induce head formation in another embryo, involving complex signaling pathways.

Adult stem cells with Tp63 can form hair and skin cells when placed in new skin, showing they have hidden abilities for skin repair.

Certain miRNAs are linked to chicken feather development.

Adult earlobe can have a benign cyst that is usually removed by surgery.

LSD1 is essential for healthy skin development and creating the skin's protective barrier.

Melanocytes are cells that make skin and hair color and help protect skin from sun damage.

Activin A speeds up ear hair cell differentiation, while Follistatin slows it down.

Green tea compound EGCG could potentially treat colorectal cancer by removing iron and causing stress in cancer cells leading to their death.

The document concludes that stem cell therapies lack solid proof of effectiveness, except for blood system treatments, and criticizes the ethical issues and commercial exploitation in the field.

Dobutamine does not mimic dopamine at therapeutic doses but may at very high concentrations; microfilaments, not microtubules, are important for wound healing in Xenopus embryos.

Sweat glands and hair follicles are determined by opposing signals, with BMPs promoting sweat glands and blocking BMPs leading to hair follicles.

MicroRNA-302 helps improve the conversion of body cells into stem cells by blocking NR2F2.

Both induced and spontaneous AA lymphocytes can cause alopecia areata in mice.

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

Wnt/ß-catenin signaling is crucial for regulating skin stem cells and hair growth, with the right levels and timing needed for proper function.

Male pattern baldness is caused by certain cells in hair follicles and could potentially be treated by targeting a specific growth factor, TGF-β1.

Women with scarring alopecia are less likely to have used hormone replacement therapy or oral contraceptives compared to those with female pattern hair loss.

Calcium signals and SHH guide the direction of feather growth in chicken skin.

Eating grape powder may reduce the severity of skin allergy symptoms.

Male-pattern hair loss is normal, often involves hormone effects on hair follicles, and can be treated with medication or surgery, but new treatments are being researched.

Estrogen increases a growth factor in hair cells which might affect hair loss.

Epigenetic changes control how adult stem cells work and can lead to diseases like cancer if they go wrong.

Regenerated fully functional hair follicles using stem cells, with potential for hair regrowth therapy.