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Liquid nitrogen spray caused a temporary, harmless swelling under the skin in an elderly woman.

Recombinant keratins can form useful structures for medical applications, overcoming natural keratin limitations.

Human skin can be reconnected to nerves using stem cells, which may help with skin health and healing.

Repeated use of platelet-rich plasma in rats caused increased pain sensitivity.

Gambogic Amide helps maintain hair color and promotes hair growth.

The article concludes that using the single-scar technique for hair transplants can result in a more attractive scar and that concerns about the technique can be managed with proper methods.

HAP stem cells can repair nerves, grow hair follicle nerves, and become heart muscle cells, making them useful for regenerative medicine.

Stem cells and their exosomes show promise for repairing tissues and healing wounds when delivered effectively, but more research is needed on their tracking and optimal use.

The interdigital gland in crossbred sheep is similar to skin and has specialized structures for secretion.

Epidermal stem cells show promise for treating orthopedic injuries and diseases.

Stress can cause hair to turn gray by depleting pigment-producing cells through the release of a stress hormone.

Hair loss in men (androgenetic alopecia) is significantly linked to decreased scalp sensitivity, but not temperature sensitivity. More research is needed to confirm this. Comparing this hair loss to leprosy is unsupported and stigmatizing.

The skin's dermal layer contains true stem cells with diverse functions and interactions that need more research to fully understand.

Stress worsens hair loss in androgenetic alopecia.

Ring block anesthesia is the best method for PRP scalp injections due to low pain and high patient acceptance.

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

Local anesthesia, often with sedation, effectively reduces pain in hair transplant harvesting.

Local anesthesia with a "ring block" is preferred for pain control during FUE hair transplant procedures.

Peptide hydrogels show promise for healing skin, bone, and nerves but need improvement in stability and compatibility.

4-aminopyridine, a FDA-approved drug, speeds up skin wound healing and tissue regeneration.

4-aminopyridine helps skin wounds heal faster and better.

Minoxidil protects brain tissue directly, not by lowering blood pressure.

Mouse skin glands need healthy nerves to grow properly during hair growth phases.

HSD11b1 affects skin nerves and increases non-histaminergic itch.

Hand-foot-mouth disease may cause nail loss in children.

The document concludes that the first book on mesotherapy lacks convincing evidence, the second book is good for beginners in facial rejuvenation, and the third book is valuable for understanding complications in skin surgery.

The document concludes that understanding risks, careful patient selection, precise surgery, quick complication management, and good communication can improve cosmetic facial surgery outcomes.

Neurotrophins are important for hair growth and response to stress.

Fine hairs improve male pattern baldness treatment, alopecia areata causes remain unknown, and hair can recover from dye damage over time.

Scientists successfully created fully functional hair follicles using bioengineering methods and stem cells.