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

Human hair matrix cells and dermal papilla fibroblasts can form early hair follicle structures but don't produce hair shafts yet.

Edar signaling is crucial for proper hair follicle development and function.

Krox20 is important for maintaining stem cells in the skin and affects hair growth and color.

The 14-3-3σ gene is essential for preventing hair loss.

Minoxidil promotes hair growth but exact mechanism is unknown.

SOX2 is crucial for skin cell function and hair growth, and it plays a role in skin cancer and wound healing.

The gene Foxn1 is important for hair growth, and understanding it may lead to new alopecia treatments.

Marsupial hair structure and keratin distribution are similar to placental mammals.

The NF-κB effector p65/RelA activates hair keratin genes, aiding hair formation.

The EDAR gene mutation leads to thinner and more deformed hair shafts.

Human hair follicle stem cells can turn into multiple cell types but lose some of this ability after being grown in the lab for a long time.

Dermatoscopy is a useful tool for diagnosing hair disorders and can help choose samples for more detailed analysis.

Scientists found cells in hair that are key for growth and color.

Hair from people with seborrheic dermatitis is thicker scaled, more damaged, and thinner than healthy hair, and atomic force microscopy can help monitor the condition.

Hair microscopy is useful for diagnosing hair disorders, but clear definitions are needed for accurate genetic analysis.

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

Hair transplants can make hair follicles larger and hair shafts thicker.

Hair shaft miR-221 levels can help detect malignant melanoma.

Using special RNA to target a mutant gene fixed hair problems in mice.

A specific type of skin cell creates an opening for hair to grow out, and problems with this process can lead to skin conditions.

VEGFR-2 activation is likely involved in hair follicle growth, survival, and development.

Fat under the skin can help hair grow longer, darker, and increase cell growth.

Androgens prevent hair growth by changing Wnt signals in cells.

Androgens block hair growth by disrupting cell signals; targeting GSK-3 may help treat hair loss.

Notch-related genes play a key role in the development and cycling of hair follicles.

Chemotherapy causes complex changes in hair follicle cells that can lead to hair loss.

Basal cell carcinomas may differentiate similarly to hair follicles and could be influenced by hair cycle-related treatments.

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

Erythropoietin helps hair grow and could be a potential treatment for hair loss.