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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.

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

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Exposure to finasteride in the womb caused lasting reproductive issues in male rats.

The research identified various cell types in mouse and human teeth, which could help in developing dental regenerative treatments.

Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.

New topical antifungals and delivery systems are improving treatment for fungal skin infections, but patient education and prevention are key.

Choosing the right model order in brain connectivity analysis can affect the detection of differences between healthy individuals and those with seasonal affective disorder.

Finasteride lowers risk of urinary issues and surgery by over 50% in 4 years.

The document concludes that understanding the sebaceous gland's development and function is key to addressing related skin diseases and aging effects.

Women with epilepsy should be monitored for reproductive issues, which can be caused by epilepsy or its treatments, especially when using valproate.

Treating sleep apnea in young obese women with PCOS can improve heart health and insulin sensitivity.

Lampreys have a functional vitamin D receptor that may help detoxify harmful substances.

Removing both Atr and Trp53 genes in adult mice causes severe tissue damage and death due to DNA damage.

Mutant CDP/Cux protein causes hair defects and reduced male fertility in mice.

Testosterone supplements can increase muscle mass and strength in older men with low levels, but long-term effects and risks need more research.

Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.

Alopecia areata is likely caused by a combination of genetic factors and immune system dysfunction, and may represent different diseases with various causes.

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

Skin changes can help diagnose and manage endocrine disorders like thyroid problems, diabetes, and adrenal gland conditions.

The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.

Latanoprost 0.1% may effectively treat hair loss.

Despite progress, better treatments and understanding are needed for the high rates of long-term issues and deaths linked to eating disorders.

Hair shedding is an active process that could be targeted to treat hair loss.

Activin helps skin growth and healing mainly through stromal cells and affects keratinocytes based on its amount.

Japanese women typically start experiencing hair loss after 40, with reduced hair density and thickness being the main factors.

5α-reductase inhibitors can cause sexual problems, higher risk of aggressive prostate cancer, and depression.

The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.

Minoxidil and finasteride are effective for male hair loss, minoxidil for female hair loss, and various treatments like corticosteroids work for alopecia areata; treatment should be tailored to the individual.

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