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Stem cell niches support, regulate, and coordinate stem cell functions.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.

Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.

Male and female skin differ due to hormones, affecting conditions like hair loss, acne, and skin cancer, and suggesting a need for gender-specific treatments.

Humans lost body hair relatively recently in evolution.

Lupus affects the body and skin, causing joint pain and skin issues that can be treated with steroids and antimalarial drugs.

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

Periodontal ligament stem cells show promise for regrowing tissues but require more research for safe, effective use.

Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

Human dermal fibroblasts are the main cells targeted by a virus that can cause a deadly skin cancer, and a certain inhibitor can effectively block this infection.

Early detection and intensive treatment of diseases caused by Staphylococcus aureus toxins are crucial for reducing severe health effects.

Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

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

Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.

Hirsutism is more linked to high androgen levels than acne or hair loss, and a mix of hormonal tests is best for diagnosis; certain treatments can reduce symptoms.

Cystatin M/E strongly inhibits cathepsin V and cathepsin L, important for skin formation.

No treatment fully prevents hair loss from chemotherapy yet.

The document concludes that adult mammalian skin contains multiple stem cell populations with specific markers, important for understanding skin regeneration and related conditions.

Eating a high-glycemic diet may worsen acne by increasing certain protein levels and expressions in the skin.

Older adults have a high rate of skin cancers like basal cell carcinoma and melanoma, mainly due to UV exposure and age.

Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.

Certain types of T cells are essential for healthy skin and play a role in skin diseases, but more research is needed to improve treatments.

Lichen Planopilaris and Frontal Fibrosing Alopecia may help us understand hair follicle stem cell disorders and suggest new treatments.

New methods have greatly improved our understanding of stem cell behavior and roles in the body.

Muscles and nerves that cause goosebumps also help control hair growth.

LGR5 helps maintain corneal cell characteristics and prevents unwanted changes by controlling specific cell signaling pathways.

Polycystic ovarian shape is a genetic sign of PCOS and its hormonal and metabolic features can be inherited.