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Hair and nail cells share similar proteins, indicating a common differentiation pathway.

The circadian clock affects skin stem cell behavior, impacting aging and cancer risk.

Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.

Polymeric nanoparticles show promise for treating skin diseases.

Apoptosis is essential for human skin development and forming a functional epidermis.

The immune system plays a key role in tissue repair, affecting both healing quality and regenerative ability.

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

The document provides a method to classify human hair growth stages using a model with human scalp on mice, aiming to standardize hair research.

Different types of skin cells play specific roles in development, healing, and cancer.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Calcium affects where root hairs grow, but other unknown factors determine their growth direction.

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

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

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

Bioprinting could improve wound healing but needs more development to match real skin.

Understanding different types of skin cells, especially fibroblasts, can lead to better treatments for wound healing and less scarring.

RNAi-based biopesticides could be safe and effective for pest control with careful development and risk assessment.

Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

Periodontal ligament stem cells show promise for regrowing tissues but require more research for safe, effective use.

Matriptase is crucial for keeping epithelial tissues healthy and functioning properly.

Low oxygen conditions increase the hair-growing effects of substances from fat-derived stem cells by boosting growth factor release.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

Hair, teeth, and mammary glands develop similarly at first but use different genes later.

A genetic region near the PAX1 gene is linked to a higher risk of scoliosis in females.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.

No treatment fully prevents hair loss from chemotherapy yet.