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A pathway helps maintain long telomeres in both stem and cancer cells.

Cicatricial alopecia causes permanent hair loss and is treated to relieve symptoms and stop progression.

Low-level laser therapy increased hair growth compared to no treatment.

The document concludes that permanent hair loss conditions are complex, require early specific treatments, and "secondary permanent alopecias" might be a more accurate term than "secondary cicatricial alopecia."

Testosterone therapy can help postmenopausal women with low sexual desire but needs more safety research and should be used with estrogen therapy.

Testosterone therapy can help with androgen deficiency in women but should be used with caution and monitoring due to potential risks.

Skin stem cells are crucial for maintaining and repairing the skin and hair, using a complex mix of signals to do so.

A mother's diet at conception can cause lasting genetic changes in her child.

African spiny mice can regenerate skin, hair, and cartilage, but not muscle, and their unique abilities could be useful for regenerative medicine.

Some wound-healing cells can turn into fat cells around new hair growth in mice.

Videodermoscopy improves diagnosis of hair and scalp disorders and may reduce scalp biopsies.

Certain proteins, Lgr5 and Lgr6, are important markers of adult stem cells and are involved in tissue repair and cancer development.

Alopecia areata is an autoimmune disease where T cells attack hair follicles.

The skin's layers protect, sense, and regulate the body's internal balance, but can be prone to cancer.

The research shows that a gene called Wnt3 affects hair growth and structure, causing short hair and balding when overactive.

Hair follicles prevent NK cell attacks to avoid hair loss.

Apoptosis is essential for human skin development and forming a functional epidermis.

Creating stronger blockers for skin enzymes might lead to better treatment for conditions like acne and excessive hair growth.

Stem cells are crucial for skin repair and new treatments for chronic wounds.

The conclusion is that proper signaling is crucial for hair growth and development, and errors can lead to cancer or hair loss.

About 7% to 15% of Iranian women have polycystic ovary syndrome, depending on the criteria used to diagnose it.

Different small areas within hair follicles send specific signals that control what type of cells stem cells become.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Androgens can both increase and decrease hair growth in different parts of the body.

A gene called APCDD1, which controls hair growth, is found to be faulty in a type of hair loss called hereditary hypotrichosis simplex.

Alopecia areata is likely an autoimmune disease with unclear triggers, involving various immune cells and molecules, and currently has no cure.

Regulatory T-cells are important for healing and regenerating tissues in various organs by controlling immune responses and aiding stem cells.

Estrogens can improve skin aging but carry risks; more research is needed on safer treatments.

Hair follicle dermal stem cells are key for regenerating parts of the hair follicle and determining hair type.

Telocytes might help with skin repair and regeneration.