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New findings suggest potential treatments for melanoma, hyperpigmentation, hair defects, and multiple sclerosis, and show skin microbiome changes don't cause atopic dermatitis.

Genetic defects and UV radiation cause skin damage and aging.

Some cells may slow melanoma growth, a protein could affect skin pigmentation, a gene-silencing method might treat hair defects, skin bacteria changes likely result from eczema, and a defensin protein could help treat multiple sclerosis.

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

Basal cell carcinoma mostly starts from cells in the upper skin layers, not hair follicle stem cells.

The circadian clock affects skin stem cell behavior, impacting aging and cancer risk.

Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.

Vitamin D receptor interacts with certain dietary components to help prevent diseases and regulate hair growth.

New nanofiber technology improves wound healing by supporting cell growth and delivering treatments directly to the wound.

Apoptosis is essential for human skin development and forming a functional epidermis.

Hair loss and aging are caused by the breakdown of a key protein in hair stem cells.

Stem cells are crucial for skin repair and new treatments for chronic wounds.

Melatonin may benefit skin health and could be a promising treatment in dermatology.

Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.

Alopecia areata involves immune activation in the scalp, suggesting treatments targeting TH1, TH2, and IL-23 pathways.

Bone Morphogenetic Proteins (BMPs) help control skin health, hair growth, and color, and could potentially be used to treat skin and hair disorders.

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

Chitosan nanofiber scaffolds improve skin healing and are promising for wound treatment.

Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

Understanding hair growth involves complex interactions between molecules and could help treat hair disorders.

New research suggests that skin cell renewal may not require a special type of cell previously thought to be essential.

Stem cell self-renewal is complex and needs more research for full understanding.

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

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

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

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.

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

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

Janus kinase inhibitors are promising treatments for autoimmune skin diseases like eczema and psoriasis.