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Nanoparticles can enter the skin, potentially causing toxicity, especially in damaged skin.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Epidermal stem cells could lead to new treatments for skin and hair disorders.

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

Light can turn on hair growth cells through a nerve path starting in the eyes.

The balance between androgen receptor and p53 is crucial for sebaceous gland differentiation.

Understanding how hair follicle stem cells work can help find new ways to prevent hair loss and promote hair growth.

The article explains the genetic causes and symptoms of various hair disorders and highlights the need for more research to find treatments.

Multiphoton microscopy is a promising tool for detailed skin imaging and could improve patient care if its challenges are addressed.

Graft-versus-host disease is a complication where donor immune cells attack the recipient's body, often affecting the skin, liver, and gastrointestinal tract.

High levels of testosterone and 5α-DHT can lead to cell death in cells important for hair growth.

Acne significantly affects mental health and quality of life, with research suggesting hormonal and genetic factors in its development and emphasizing early treatment to prevent scarring.

The document concludes that the skin's immune system is complex, involving interactions with hair follicles, nerves, and microbes, and can protect or cause disease, offering targets for new treatments.

Different women's hair and skin glands respond to hormones in varied ways, which can cause unwanted hair growth even with normal hormone levels, and more research is needed to treat this effectively.

Mutations in the LSS gene cause a rare type of hereditary hair loss.

Keratinocytes control how melanocytes work.

Burn reconstruction improves with new techniques, materials, and tissue engineering.

Minoxidil helps grow longer, thicker hair in bald scalps of stumptailed macaques, and early treatment is more effective.

New methods to improve the healing abilities of mesenchymal stem cells for disease treatment are promising but need more research.

Some skin conditions may indicate metabolic syndrome, which could help with early detection and management of related health issues.

Alopecia areata shows a unique type 1 interferon signature, suggesting potential treatment by targeting this pathway.

The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.

Hormones and their receptors, especially androgens, play a key role in hair growth and disorders like baldness.

A boy with severe Vitamin D-resistant rickets did not respond to treatment and lacked a common symptom, suggesting a need for alternative treatments.

The document concludes with guidance for doctors on diagnosing and treating hirsutism effectively and safely.

Wounds on the face usually heal with scars, but understanding how some wounds heal without scars could lead to better treatments.

Men are more likely to get infectious skin diseases, while women are more prone to autoimmune and pigment-related skin conditions, influenced by biological and environmental factors.

Tooth papilla cells can help regenerate hair follicles and grow hair.

Toxic epidermal necrolysis is a severe skin reaction often linked to drugs, requiring careful medication use and supportive care.

LGBT individuals have unique skin health needs, including higher STD risks and side effects from gender-affirming treatments, requiring dermatologists to offer knowledgeable and culturally competent care.