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3D bioprinting is advancing in plastic and reconstructive surgery, especially for creating tissues and improving surgical planning, but faces challenges like vascularization and material development.

The document provides a comprehensive index of medical and surgical topics, including hair removal, hair restoration, and various treatments for injuries and conditions.

Hair growth environment recreated with challenges; stem cells make successful skin organoids.

The document concludes that using stem cells to regenerate hair follicles could be a promising treatment for hair loss, but there are still challenges to overcome before it can be used clinically.

Nerves and chemicals in the body can affect hair growth and loss.

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

Light can activate hair growth through a pathway from the eyes to hair follicles.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.

Skin-derived precursors in hair follicles come from different origins but function similarly.

Melanocyte development from neural crest cells is complex and influenced by many factors, and better understanding could help treat skin disorders.

Activating Notch in adult skin causes T cells and neural crest cells to gather, leading to skin issues.

Melanocytes are diverse cells important for pigmentation and skin health, influenced by genetics and environment.

The skin has about 230,000 touch-sensitive nerve fibers, with high concentrations in the hands and face.

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

People with polycystic ovary syndrome may have a higher risk of heart problems due to abnormal nervous system control of their heart and blood pressure.

Manatee whiskers are specially adapted for touch in water.

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

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

Nerve growth in mouse skin and hair follicles happens in stages and is closely linked to hair development.

Human hair follicle cells can be turned into neural stem cell-like cells, which might help treat brain diseases.

Human Schwann cells can be quickly made from hair follicle stem cells for nerve repair.

BMP signaling is essential for the development of touch domes.

Meis2 is essential for touch sensation and proper nerve connection to touch receptors in certain skin areas of mice.

Nerves are crucial for the regeneration of various body parts in many animals.

The paper concludes that understanding melanocyte development can help in insights into skin diseases and melanoma diversity.

MDP hydrogel heals wounds faster and better than other treatments in diabetic mice.

Researchers successfully transplanted hair follicles in mice, which survived well and helped in wound healing.

Hair loss might be due to nerve issues, treatable with electric stimulation or acupuncture.

STIM1 is essential for sweat secretion.