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Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.

TGF-β is crucial for controlling stem cell behavior and changes in its signaling can lead to diseases like cancer.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

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

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

The AUTS2 gene is linked to neurological disorders and may affect human brain development and cognition.

Foals with Rhodococcus equi infection often have other health problems that lower their chances of survival.

Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.

Melanocytes are crucial for skin pigmentation and can affect conditions like melanoma, vitiligo, and albinism, as well as hair color and hearing.

Turing patterns are now recognized as important in developmental biology.

Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.

The article concludes that while we understand a lot about how melanocytes age and how this can prevent cancer, there are still unanswered questions about certain pathways and genes involved.

Certain steroids in the brain affect mood and symptoms of depression, and treatments targeting these steroids show promise for improving these symptoms.

Human skin cells produce proenkephalin, which changes with environmental factors and skin diseases.

The circadian clock influences the behavior and regeneration of stem cells in the body.

CCCA is a scarring hair loss condition mainly in African descent women, possibly caused by genetics and hairstyling, treated with gentle hair care and medications.

Wnt signaling is crucial for skin and hair development and its disruption can cause skin tumors.

Trichoscopy is a quick, noninvasive method to diagnose hair and scalp disorders, often reducing the need for biopsies.

Trichoscopy is a quick, cost-effective tool for diagnosing different hair loss conditions.

Msx2 and Foxn1 are both crucial for hair growth and health.

The document concludes that good cosmetic outcomes in hair transplantation depend on the surgeon's artistic skill and careful planning.

The document concludes that there are no effective clinical treatments for hearing loss due to hair cell damage, but research is ongoing.

Some drugs can cause hair loss, and stopping these drugs often leads to hair regrowth.

Chickens exposed to loud noise can quickly regain hearing mostly due to repair of the tectorial membrane, not just hair cell regeneration.

Nanotechnology in dermatology shows promise for better drug delivery and treatment effectiveness but requires more safety research.

The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.

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

Adult mice can grow new hair from skin wounds.

Ablative fractional resurfacing could improve how well topical drugs penetrate the skin, but more research is needed to fine-tune the method.