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The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.

Fibroblast Growth Factor-9 helps repair heart damage after a heart attack by creating new blood vessels, especially in diabetics.

Androgens can both promote and prevent hair growth due to differences in gene expression in hair follicles.

Telocytes in the scalp may help with skin regeneration and maintenance.

Terbinafine is more effective than itraconazole for toenail fungus, especially in older patients, and debridement improves its effectiveness.

A spermidine-based supplement may help hair grow longer by keeping it in the growth phase.

A clinically suspected melanoma appeared benign under the microscope but was confirmed by specific tests and a rare mutation.

Hair follicle stem cells prevent melanocyte stem cells from differentiating by controlling retinoic acid levels.

The gene HDC is important for the development of hair follicles in newborn mice.

ALA-PDT is effective and safe for chronic X-ray dermatitis, providing complete or partial remission.

Certain microRNAs are more common in balding areas and might be involved in male pattern baldness.

Too much thymosin beta4 causes weird teeth and more hair growth in mice.

The protein Gnαs is found more in black mice than white mice and may influence their coat color.

Different substances affect hair and skin cell growth in various ways, with some promoting and others inhibiting cell proliferation.

Cancer treatments targeting specific cells often cause skin, hair, and nail problems, affecting patients' lives and requiring careful management.

miR-29 is a key factor that accelerates aging.

Wnt10b helps blood stem cells grow after injury.

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.

FOXN1 gene variants cause low T cells and immune issues from birth.

Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.

Different types of resting melanocyte stem cells have unique characteristics and vary in their potential to become other cells.

CD117 and platelet-derived growth factor receptor α may play a role in alopecia areata.

Epimedium extract helps increase skin pigmentation and could be a new treatment for conditions with reduced pigmentation.

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

miR-22, a type of microRNA, controls hair growth and its overproduction can cause hair loss, while its absence can speed up hair growth.

Targeted cancer therapies often cause serious skin problems that need careful management.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

Recognizing oral symptoms can help diagnose and treat blood and nutritional diseases early.

Targeted cancer therapies often cause skin problems that need careful management to improve patient quality of life and treatment success.

MicroRNAs are important for skin health and could be targets for new skin disorder treatments.