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

High mTORC1 activity slows hair growth and causes it to lose color.

Adrenalectomy boosts hair growth and melanin in black rats, even with vitamin B¹ deficiency.

Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.

Hair dye colors mainly target melanin granules in black hair.

Synthetic hormone treatment reduces melanin and hair growth in rats.

CD34+ hair follicle stem cells can become melanin-producing cells for treating skin conditions.

Hair turning darker can be a sign of skin cancer.

Lasers and light therapies are effective in promoting hair regrowth for different types of hair loss.

Hair health depends on various factors and hair loss can significantly affect a person's well-being; understanding hair biology is key for creating effective hair care treatments.

UV radiation causes significant protein loss and color changes in hair, especially blond hair.

Melanocytes in the outer root sheath are likely stem cells that grow fast but stay immature.

Using a gene therapy with the Sonic Hedgehog gene helps mice regrow hair faster after losing it from chemotherapy.

Hair is complex, varies in type, and plays a big role in attractiveness and culture.

Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.

Experts agree on how to manage sugar levels and skin reactions in patients taking the cancer drug alpelisib.

Cyclic nucleotide-gated channels are crucial for proper root hair growth and calcium balance in plants.

Betamethasone activates and increases the growth of certain skin cells from hair follicles.

Plant extracts may help prevent or reverse hair graying.

ISCK03 stops melanin production in human melanoma cells and lightens skin color in mice and guinea pigs.

Melanin granules can be expelled by exocytosis.

New genetic locations explain much of hair color variation in Europeans.

Rhamnose may help hair growth and pigmentation, making it a potential treatment for hair loss.

Dermal factors are crucial in regulating melanin production in skin.

Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.

Chronic arsenic toxicity can cause diabetes and may not improve even with treatment.

Activating the Sonic hedgehog gene in mice can start the hair growth phase.

Men and women have different levels and production of brain steroids, which may affect their risk for certain brain disorders.

The document concludes that assessing hair follicle damage due to cyclophosphamide in mice involves analyzing structural changes and suggests a scoring system for standardized evaluation.

Blocking mTORC1 activity could increase hair pigmentation and potentially reverse greying.