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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.

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

Male hormones like testosterone may make COVID-19 worse, and testing for sensitivity to these hormones could help predict how severe a patient's symptoms might be. Treatments that reduce these hormones are being explored.

Skin surface lipids are important for skin health and altering them could help prevent aging and treat skin conditions.

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

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

Certain genetic variations in the AR and ERβ genes can affect androgen levels in women.

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.

TNF family proteins are crucial for the development of skin features like hair, teeth, and mammary glands.

Mammals might fail to regenerate not because they lack the right cells, but because of how cells respond to their surroundings, and changing this environment could enhance regeneration.

Skin has specialized touch receptors that can tell different sensations apart.

The tumor suppressor gene FLCN affects mitochondrial function and energy use in cells.

EVAL membranes help create cell structures that can regrow hair follicles.

Vitiligo affects overall health and self-esteem, needing more research and awareness.

Wnt signaling is crucial for skin and hair development and its disruption can cause skin tumors.

Technique creates 3D cell spheroids for hair-follicle regeneration.

Steroid sex hormones activate matriptase in prostate cancer cells but not in breast cancer cells.

The length of the CAG repeat in the androgen receptor gene affects the risk and progression of prostate cancer, BPH, infertility, and undermasculinized genitalia.

K16 can partially replace K14 but causes hair loss and skin issues.

Regenerative pharmacology, which combines drugs with regenerative medicine, shows promise for repairing damaged body parts and needs more interdisciplinary research.

Laser treatment increases hair density and thickness safely in women with hair loss.

Longer CAG repeat lengths in the androgen receptor gene are linked to higher testosterone levels in women with PCOS.

Advancements in creating skin grafts with biomaterials and stem cells are promising, but more research is needed for clinical application.

Understanding how melanocyte stem cells work could lead to new treatments for hair graying and skin pigmentation disorders.

Engineered skin substitutes can grow hair but have limitations like missing sebaceous glands and hair not breaking through the skin naturally.

Minoxidil affects collagen-related genes, potentially helping treat fibrosis.

Bone-marrow and epidermal stem cells help heal wounds differently, with bone-marrow cells aiding in blood vessel formation and epidermal cells in hair growth.

Hair follicle stem cells are a practical and ethical option for nerve repair in regenerative medicine.

Transit-amplifying cells are crucial for tissue repair and can contribute to cancer when they malfunction.

Skin side effects from EGFR inhibitor cancer treatment can be managed effectively, often without stopping the medication.