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As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

Advanced human skin models improve drug development and could replace animal testing.

EdnrB signaling helps melanocyte stem cells regenerate and could be targeted to treat pigmentation issues.

Advancements in creating skin grafts with biomaterials and stem cells are promising, but more research is needed for clinical application.

Adult skin quickly reacts to short-term environmental and internal stress, leading to various skin issues and the need for protective measures.

Mice without certain skin proteins had abnormal skin and hair development.

Patient-derived melanocytes can potentially treat vitiligo by restoring skin pigmentation.

Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.

Certain genes and proteins may influence wool growth in Aohan fine wool sheep.

Oral zinc sulphate reduces dark hair color in mice.

Fat under the skin releases HGF which helps hair grow and gain color.

Wnt10b helps hair follicle cells mature and produce pigment.

Using neurohormones to control keratin can lead to new skin disease treatments.

Epidermal stem cells have various roles in skin beyond just maintenance, including forming specialized structures and aiding in skin repair and regeneration.

Poplar seed hairs grow from the placenta at the ovary base, with endoreduplication playing a key role in their development, and share similar cellulose synthesis processes with cotton fibers.

Non-immune factors play a significant role in alopecia areata.

Men with baldness are more prone to skin cancers on the scalp due to sun exposure, not testosterone.

Europe needs a clear system to watch over cosmetics for safety and to make sure product claims are true.

Researchers found 44 proteins that change during different hair growth stages and may be important for hair follicle function.

Only skin melanocytes, not other types, can color hair in mice.

A protein called sFRP4 from skin cells stops the development of pigment-producing cells in hair.

Psychotropic medications can cause skin problems but also treat some skin conditions.

Epigenetic and metabolic changes affect stem cell function and aging in skin.

Adiponectin reduces hair pigmentation and affects hair growth signals.

Skin plays a key role in managing iron levels, and inflammation can affect systemic iron, potentially causing anemia.

Gamma-rays exposure during the resting phase of hair growth can damage hair regeneration and color in mice.

The technique can isolate cells to help treat skin pigmentation issues.

BMI1 is essential for preventing hair greying and maintaining hair color.