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Cat color patterns are determined early in development by gene expression and epidermal changes, with the Dickkopf 4 gene playing a crucial role.

Hormones and genes affect hair growth and male baldness.

ACTH may be an effective first-line treatment for acute calcium pyrophosphate crystal arthritis.

The article concludes that dermatologists should prescribe lifestyle drugs carefully and consider mental health treatments for patients with disorders like BDD.

Researchers found that most genes affecting drug responses are not fully covered by commercial SNP chips, suggesting the need for more comprehensive tools to optimize drug selection based on genetics.

Gray hair is caused by reduced melanin production or transfer issues, linked to aging and possibly health conditions, with treatments focusing on color camouflage.

The study found no significant difference in stress hormone levels between people with alopecia areata and healthy individuals, suggesting that the disease is not caused by an overactive stress response system.

Compounds from certain trees used by First Nations people show potential for treating skin conditions and promoting hair growth, but more research is needed to confirm their safety and effectiveness.

Acne is a common skin condition linked to diet, hormones, and genetics, and early treatment can prevent scarring.

The document concludes that a deeper understanding of skin aging and photodamage is needed to create better skin treatments.

Older adults use lifestyle drugs to improve life quality and appearance, but caution is needed due to side effects and potential abuse.

The skin is vital for protection, temperature control, fluid balance, immunity, and sensing, with damage affecting daily life and mental health.

High mTORC1 activity slows hair growth and causes it to lose color.

Certain medications, especially 5-α reductase inhibitors and neuropsychiatric drugs, are often linked to erectile dysfunction.

Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.

Mice with autoimmune hair loss showed signs of heart problems.

Light therapy can effectively treat vitiligo and hair loss caused by a specific medication.

Deleting the PTEN gene in mice causes nerve cells to grow larger and heal better after injury, but may cause overgrowth and hair loss in older mice.

A man's health improved after treating his undiagnosed adrenal insufficiency, which caused fatigue and weight loss.

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

Obesity increases the risk of skin infections, inflammatory conditions, and melanoma, but not basal cell carcinoma.

The conclusion is that obesity should be managed with a slow, balanced approach to diet and exercise, with medication and surgery as additional options, and education and access to care are important.

Dandruff is linked to increased T cells and weakened immune protection in hair follicles.

Vitamin D3 and its receptor are important for hair growth, and understanding receptors could help treat hair graying and skin cancer.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Blocking glucocorticoid receptors improves glucose metabolism in a PCOS mouse model.

Bmpr2 and Acvr2a receptors are crucial for hair retention and color.

Androgens and androgen receptors are important for metabolic health, affecting how the body uses glucose and fats through mitochondrial function.

The document concludes that understanding hair follicle biology can lead to better hair loss treatments.

Melatonin helps regulate hair growth and protects the hair follicle from stress.