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Finasteride safely lowers DHT levels without affecting testosterone.

Cathepsin L is essential for normal hair growth and development.

The Sonic hedgehog pathway is crucial for new hair growth during mouse skin healing.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Memory regulatory T cells need IL-7, not IL-2, to stay in peripheral tissues.

Keratose, derived from human hair, is a non-toxic biomaterial good for tissue regeneration and integrates well with body tissues.

Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.

Transplant success has improved with better immunosuppressive drugs and donor matching.

Eating less sugar, milk, and saturated fats and more vegetables and fish may help treat and prevent acne.

Minoxidil promotes hair growth in male pattern baldness.

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

Stem cell therapy, particularly using certain types of cells, shows promise for treating hair loss by stimulating hair growth and development, but more extensive trials are needed to confirm these findings.

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

Low oxygen conditions increase the hair-growing effects of substances from fat-derived stem cells by boosting growth factor release.

GABRA2 gene variations impact alcohol response, and hair loss medication finasteride reduces some effects.

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.

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

TGF-β signaling is crucial for stem cell maintenance, differentiation, and has implications for cancer treatment.

The document concludes that specific cells are essential for hair growth and more research is needed to understand how to maintain their hair-inducing properties.

The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.

Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

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.

Finasteride helps increase hair growth in men with hair loss.

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

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

Stress can stop hair growth in mice, and treatments can reverse this effect.

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

Men generally have more severe COVID-19 cases and higher death rates than women due to biological differences.