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AGA more common in men, Koreans have lower rates and unique patterns.

Male pattern baldness involves genetics, hormones, and needs better treatments.

Finasteride helps hair growth but may cause sexual side effects.

Nanoparticles improve drug delivery through the skin but more research is needed on their long-term effects and skin penetration challenges.

Effective treatments for male pattern baldness include oral finasteride and topical minoxidil, while topical minoxidil is best for female pattern baldness.

Guidelines for diagnosing common hair loss include detailed history, clinical examination, and various diagnostic techniques.

The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.

Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.

Laser device increases hair density, safe for treating hair loss in men and women.

Targeting the IL-23/IL-17 pathway effectively treats several inflammatory skin diseases.

Alopecia areata is a common autoimmune disease affecting about 2% of people, causing significant disability and often associated with mental health issues and other autoimmune conditions.

Transplant success has improved with better immunosuppressive drugs and donor matching.

Protoporphyrin IX is useful in cancer treatment but can cause health problems if not properly regulated.

PRP treatment improves hair growth, and the device used can affect results, with some being more effective.

Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.

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.

Trichoscopy can diagnose female hair loss with high accuracy by looking for specific patterns in hair and scalp appearance.

Over one-third of women experience hair loss, with female-pattern hair loss being most common, and treatments include minoxidil and possibly hair transplantation.

Alopecia areata significantly lowers the quality of life, especially in emotional and mental health aspects.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

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

Stress can stop hair growth in mice, and treatments can reverse this effect.

Baldness is more common in Chinese men than women, increasing with age, and is influenced by genetics.

Oxidative stress contributes to hair graying and loss as we age.

Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.

Fat cells in the skin help start healing and form important repair cells after injury.

Targeting androgen receptors could be a promising way to treat skin disorders with fewer side effects.

Men's sensitivity to male hormones might affect how severe COVID-19 gets for them.

The study found that Frontal Fibrosing Alopecia affects a broader age range of women and early treatment can help stop hair loss.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.