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Mice without the vitamin D receptor have bone issues and other health problems, suggesting vitamin D is important for preventing various diseases in humans.

The vitamin D receptor is crucial for bone health and affects various body systems, with mutations potentially leading to disease.

Histone demethylases can change gene expression and may be linked to diseases like cancer.

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

Anabolic steroids can build muscle and strength but have risks and need more research on their clinical benefits and side effects.

Improving artificial vascular grafts requires better materials and surface designs to reduce blood clotting and support blood vessel cell growth.

The guide recommends specific methods for diagnosing PCOS and various treatments for its symptoms, while considering the health impacts on adolescents.

Metformin helps with menstrual cycles and insulin levels in PCOS but is less effective for hair growth, diabetes prevention, and weight loss, and may improve fertility and reduce diabetes risk.

The skin's layers protect, sense, and regulate the body's internal balance, but can be prone to cancer.

Patients need long-term care after bariatric surgery to manage potential nutritional and metabolic issues.

AGA causes hair loss by shrinking hair follicles due to DHT binding, and can be treated with finasteride and minoxidil.

Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.

Metformin is effective for treating excessive hair growth in women with PCOS and may work better than the standard treatment in some ways.

Researchers created human hair follicles using a new method that could help treat hair loss.

Mammalian organs regenerate using stem cells and cell plasticity, but this ability declines with age.

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

Androgens can cause hair growth in some areas and hair loss on the scalp.

Using CDK inhibitors on rats showed a reduction in chemotherapy-caused hair loss, but later experiments could not repeat these results.

Humans lost body hair relatively recently in evolution.

The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.

The WNT signaling pathway is important in many diseases and targeting it could offer new treatments.

Aging causes skin stem cells to work less effectively.

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

Adam10 enzyme is crucial for healthy skin and proper Notch signaling.

Estrogen Receptor ß (ERß) is the main hormone controller in human skin and hair follicles, not Estrogen Receptor α (ERα) or the Androgen Receptor (AR).

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.

Gene therapy with the Math1 gene helped regenerate balance-related cells and improve balance in mice.

Cepharanthine is a well-tolerated drug with multiple medical uses, including anti-inflammatory and anti-cancer properties.

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

Keratin 17 is crucial for early hair strength and cell survival.