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Some cases of tinea capitis, a fungal scalp infection, can look like scarring hair loss due to the body's immune response and the fungus itself.

Aging scalp skin contributes to hair aging and loss, and more research is needed to develop better hair loss treatments.

Keratoacanthoma comes from hair follicle cells.

Scientists created a model using sheep cells to study hair root formation, which can test how different substances affect hair growth.

Hair graying is influenced by factors like nerves, fat cells, and immune cells, not just hair follicles.

Scientists made a mouse that can be made to lose hair and then grow it back.

Botox increased hair count in men with baldness and might work by improving scalp blood flow.

The conclusion is that we need more effective hair loss treatments than the current ones, and these could include new drugs, gene and stem cell therapy, hormones, and scalp cooling, but they all need thorough safety testing.

Both immature and mature fat cells are important for hair growth cycles, with immature cells promoting growth and mature cells possibly inhibiting it.

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

Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.

The guide explains how to study human skin fat cells and their tissue, aiming to improve research and medical treatments.

Chronic inflammatory skin diseases are caused by disrupted interactions between skin cells and immune cells.

Botulinum toxin type A significantly reduces scalp psoriasis severity compared to placebo.

Accurate diagnosis of cicatricial alopecias requires thorough scalp examination and multiple biopsy techniques.

Certain hairstyles can cause scalp diseases, smoking is linked to hair loss, 5% minoxidil foam is effective for hair loss treatment, and various factors influence wound healing and hair growth.

Androgens affect bone and fat cell development differently based on the cells' embryonic origin.

Cyclosporine A helps hair grow by blocking a process that would otherwise cause hair cells to die.

The document concludes that accurate diagnosis of different types of hair loss requires careful examination of hair and scalp tissue, considering both clinical and microscopic features.

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.

Applying pseudoceramide improved skin and hair health.

Blocking Oncostatin M's role in the JAK-STAT pathway can stimulate hair growth in mice.

Lithocholic acid helps hair growth and regeneration in alopecia by activating vitamin D receptors.

Blocking Prostaglandin D₂ (PGD₂) could help treat hair loss.

Double-stranded RNA activates a pathway that causes a skin protein to be expressed in the wrong place.

Lichen Planopilaris and Frontal Fibrosing Alopecia may help us understand hair follicle stem cell disorders and suggest new treatments.

Ginsenoside Rd may help improve skin aging by increasing collagen in the skin.

The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.