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The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.

Caspase-7 has functions in skin and hair that are not related to cell death.

Certain signals are important for reducing specific chemical markers on hair follicle stem cells during rest periods, which is necessary for healthy hair growth.

Keloid skin disorder involves abnormal fibroblast activation and immune response, linked to a group of genes including FGF11.

Finasteride reduces sperm count and quality and alters hormone levels in mice.

The document concludes that certain chemicals can help maintain stem cell pluripotency and that understanding cell states is crucial for tissue regeneration.

Foxp3+ Regulatory T Cells are important for immunity and tolerance, affect hair growth and wound healing, and their dysfunction can contribute to obesity-related diseases and other health issues.

Keratin injections can promote hair growth by affecting hair-forming cells and tissue development.

New imaging techniques show testosterone delays hair growth and shrinks follicles in mice, but have limited depth for viewing.

Sebaceous gland atrophy and abnormal function may contribute to hair loss in psoriasis.

Epithelial stem cells can adapt and help in tissue repair and regeneration.

Tissue-specific variation in mutant load complicates genetic counseling and prenatal diagnosis.

FOXN1 gene mutations cause a rare, severe immune disease treatable with cell or tissue transplants.

Adult stem cells are important for tissue repair and have therapeutic potential, but more research is needed to fully use them.

Scientists identified a unique type of human skin stem cell that could help with tissue repair.

D-OCT shows increased blood vessel growth in response to tissue damage in Frontal Fibrosing Alopecia and is useful for diagnosis and monitoring.

Hair follicles have a more inactive cell cycle than other skin cells, which may help develop targeted therapies for skin diseases and cancer.

Activating TLR9 helps heal wounds and regrow hair by using specific immune cells.

Scientists improved how to make skin-like structures from stem cells using special gels and a device that controls growth signals, leading to better hair and skin features.

Exosomes show promise for tissue repair and regeneration with advantages over traditional cell therapies.

MicroRNAs are crucial in controlling cell signaling, affecting cancer and tissue regeneration.

Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.

Certain mature cells in mouse lungs can turn back into stem cells to aid in tissue repair.

Epithelial stem cells are crucial for tissue renewal and repair, and understanding them could improve treatments for damage and cancer.

Stem cell niches are crucial for regulating stem cell behavior and tissue health, and their decline can impact aging and cancer.

The secretome from mesenchymal stem cells is a promising treatment that may repair tissue and avoid side effects of stem cell transplantation.

Stem cell offspring help control their parent stem cells, affecting tissue health, healing, and cancer.

Exosomes could potentially enhance tissue repair and regeneration with lower rejection risk and easier production than live cell therapies.

Blocking the Wnt pathway could lead to new treatments for cancer and tissue repair but requires careful development to avoid side effects.

The circadian clock is crucial for tissue renewal and regeneration, affecting stem cell functions and having implications for health and disease.