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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.

Coal tar shampoos, salicylic acid, and topical corticosteroids are effective for scalp psoriasis, with Vitamin D3 analogues also showing benefits; severe cases may require stronger medication with more risks.

Probiotic bacteria improved skin and hair health in aged mice.

Low doses of some substances can be beneficial, while high doses can be harmful or toxic.

Substances from Chinese medicines show promise for immune support and disease prevention, but the way they are processed affects their effectiveness.

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

TRP channels in the skin are important for sensation and health, and targeting them could help treat skin disorders.

Polycystic Ovary Syndrome likely starts in childhood and may be genetic and influenced by early hormone exposure.

Finasteride exposure in pregnancy causes genital abnormalities in male rats.

Many women in southern China have polycystic ovary syndrome, with some symptoms differing from Western women.

A simple screening method found that 6.3% of women in a semiurban area in Sri Lanka have polycystic ovary syndrome, with most showing menstrual irregularities.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

The article concludes that the wool follicle is a valuable model for studying tissue interactions and has potential for genetic improvements in wool production.

The research identified various cell types in mouse and human teeth, which could help in developing dental regenerative treatments.

New compounds were made that block an enzyme linked to breast cancer better than existing treatments.

Skin's Regulatory T cells are crucial for maintaining skin health and could be targeted to treat immune-related skin diseases and cancer.

Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.

The document concludes that proper diagnosis and a combination of medical, hair-care, and surgical treatments are important for managing alopecia in black women.

Treating psoriasis on the scalp, nails, and skin folds is challenging, often requiring systemic treatments for severe cases, with some success in topical and biologic treatments.

Lampreys have a functional vitamin D receptor that may help detoxify harmful substances.

A genetic region near the PAX1 gene is linked to a higher risk of scoliosis in females.

Scientists turned mouse stem cells into skin cells that can grow into skin layers and structures.

Finasteride may cause slight depression and anxiety.

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

Medications have become the main treatment for enlarged prostate symptoms, replacing surgery and watchful waiting.

A cluster of sulfur-rich hair protein genes was found on chromosome 17.

Treatments for permanent hair loss from scarring aim to stop further loss, not regrow hair, and vary by condition, with partial success common.

Ginseng is possibly safe but its effectiveness is unclear due to poor quality studies and mixed results.

Turing patterns are now recognized as important in developmental biology.