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Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.

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

Stromal stem cells may help heal wounds by becoming structural cells or affecting the immune system, but more research is needed to understand how.

The document concludes that mouse models are helpful but have limitations for skin wound healing research, and suggests using larger animals and genetically modified mice for better human application.

The Rotterdam Study aims to understand disease causes in the elderly and has found new risk factors and genetic influences on various conditions.

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

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.

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

The AUTS2 gene is linked to neurological disorders and may affect human brain development and cognition.

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

Skin development in mammals is controlled by key proteins and signals from underlying cells, involving stem cells for maintenance and repair.

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

HFMs can help study hair growth and test potential hair growth drugs.

The FOXN1 gene is crucial for developing immune cells and preventing immune disorders.

Dermal papilla cells help wounds heal better and can potentially grow new hair.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

Wnt signaling may be linked to heart diseases in aging and could be a target for future treatments.

The extracellular matrix is crucial for controlling skin stem cell behavior and health.

Activating β-catenin in different skin stem cells causes various types of hair growth and skin tumors.

Bcl-2 overexpression protects against UVB damage but worsens hair loss from chemotherapy.

Scientists found cells in hair that are key for growth and color.

Hoxc genes control hair growth through Wnt signaling.

Epidermal keratinocytes start wound healing and inflammation after schistosome infection.

The conclusion suggests that prostate cancer should be classified by castration status and that new therapies targeting androgen receptor signaling show promise.

Prominin-1 expressing cells in the dermal papilla help regulate hair follicle size and communication but don't aid in skin repair.

Both immature and mature fat cells are important for hair growth cycles, with immature cells promoting growth and mature cells possibly inhibiting it.

Adult stem cells are important for tissue repair and have therapeutic potential, but more research is needed to fully use them.

Scientists have made progress in creating replacement teeth, hair, and glands that work, which could lead to new treatments for missing teeth, baldness, and dryness conditions.

Laser treatment helped regrow hair in mice by activating a key growth pathway.

Dying cells can help with faster healing and new hair growth by releasing a growth-promoting molecule.