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Hair aging is caused by stress, hormones, inflammation, and DNA damage affecting hair growth and color.

Acne is caused by genetics, diet, hormones, and bacteria, with treatments not yet curative.

Red Ginseng Extract may help human hair grow by activating growth pathways and blocking negative effects of certain hormones.

Men with baldness have higher levels of specific proteins, suggesting local hormone production may play a role in hair loss.

Higher enzyme levels found in women with hair loss, suggesting hormone imbalance.

Copper deficiency may cause hair loss, and treating it could involve nutrition and hormones.

Men, especially older ones with health issues like prostate cancer, may have worse COVID-19 outcomes and could benefit from therapies targeting male hormones.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

The conclusion is that we need more effective hair loss treatments than the current ones, and these could include new drugs, gene and stem cell therapy, hormones, and scalp cooling, but they all need thorough safety testing.

The skin is the largest organ, protecting the body, regulating temperature, and producing hormones.

AGA, a common hair loss, is caused by genetics, hormones, age, and environmental factors.

Skin fat has important roles in hair growth, skin repair, immune defense, and aging, and could be targeted for skin and hair treatments.

Melatonin affects many body functions beyond sleep by interacting with specific receptors in various tissues.

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

Adrenal disorders can cause lasting brain and behavior issues in children.

Stress hormone corticosterone suppresses hair growth by affecting stem cell activity and Gas6 protein expression.

New treatments for hair growth disorders are needed due to limited current options and complex hair follicle biology.

Hormones like androgens, estrogen, thyroid hormones, and stress hormones can contribute to hair loss, and treatments target these hormonal imbalances.

Certain growth factors regulate hair growth cycles, male hormones affect hair cycles, and drugs like Minoxidil and Finasteride can stimulate hair growth and inhibit male pattern baldness respectively.

Biomaterials with MSC-derived substances could improve tissue repair and have advantages over direct cell therapy.

Obesity is linked to various skin problems and may increase the risk of skin cancer.

Fat cells are important for healthy skin, hair growth, and healing, and changes in these cells can affect skin conditions and aging.

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.

Prolactin affects when mice shed and grow hair.

The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.

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

The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.

Environmental factors at different levels control hair stem cell activity, which could lead to new hair growth and alopecia treatments.

Stem cells help repair tissue mainly by releasing beneficial substances, not by replacing damaged cells.

Cytokines and neuropeptides are key in controlling androgen levels, affecting skin and hair conditions.