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Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

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

Normal skin cell renewal doesn't need RAR signaling, but vitamin A-related skin thickening does.

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

Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.

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.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Lignans and neolignans from plants may help protect against various health issues, including cancer and heart disease.

Liposomes could improve how skin care products work but are costly and not very stable.

Understanding the mouse hair cycle is crucial for cancer research.

Olive oil compounds may help prevent cancer in animals, but human results are mixed.

FGF signaling is a promising target for developing treatments for wounds, metabolic diseases, and cancer.

One minoxidil-sensitive potassium channel exists in human hair follicles.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

EGF makes hair follicles grow longer but stops hair production.

Researchers identified genes linked to coat color, body size, cashmere production, and high altitude adaptation in goats.

Skin can be cooled quickly and safely during laser treatments to protect it without affecting deeper layers.

Fetal skin heals without scarring due to unique cells and processes not present in adult skin healing.

Mice studies show that Protein Phosphatase 2A is crucial for cell growth, development, and disease prevention.

FOXO1 is important for wound healing, but its dysfunction in diabetes can slow the healing process.

Changes to the Foxp3 protein affect how well regulatory T cells can control the immune system, which could help treat immune diseases and cancer.

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

Researchers developed a quick and easy way to get and grow cells from the base of human hair follicles.

New treatments for male hypogonadism are effective and should be personalized.

Zinc deficiency in children can cause skin issues and can be serious if not diagnosed and treated properly.

Fetal skin cells from a cell bank heal wounds faster and with less scarring than adult cells.

Blocking a specific enzyme might help treat obesity and diabetes, but more research is needed to ensure it's safe.

PRP and HF-MSCs treatment improves hair growth, thickness, and density in androgenetic alopecia.

Advanced human skin models improve drug development and could replace animal testing.

Blocking the enzyme 11β-HSD1 might help treat obesity and metabolic issues.