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Hair follicle biology advancements may lead to better hair growth disorder treatments.

Hair growth is cyclic and influenced mainly by local factors.

Frontal fibrosing alopecia is a hair loss condition in postmenopausal women, similar to lichen planopilaris, with ineffective treatments.

β-catenin in the dermal papilla is crucial for normal hair growth and repair.

Horizontal scalp biopsy sections effectively diagnose and predict MPAA, with follicular density and inflammation impacting hair regrowth.

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

Lichen Planus is a less common condition affecting skin and mucous membranes, with various types and associated risk factors, challenging to diagnose, significantly impacts life quality, and may have a risk of cancerous changes in oral lesions.

Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.

Platelet-rich plasma can potentially promote hair growth by stimulating cell growth and increasing certain proteins.

Insulin resistance is a key factor in polycystic ovary syndrome, but genetics may also contribute.

Insulin resistance and obesity are key factors in the development and worsening of polycystic ovary syndrome, and lifestyle changes are important for managing it.

Diagnosing PCOS in teenagers is challenging and should use strict criteria to avoid misdiagnosis and unnecessary worry.

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

Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.

Lactate production is important for activating hair growth stem cells.

Targeted cancer therapies often cause serious skin problems that need careful management.

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

Trichoscopy is a useful tool for diagnosing different hair and scalp diseases by their unique visual features.

Early development of hair, teeth, and glands involves specific signaling pathways and cellular interactions.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

Follicular Unit Extraction (FUE) is a less invasive hair transplant method with minimal scarring, suitable for about 60% of patients, especially those needing fewer grafts and quicker recovery.

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.

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

Higher levels of unbound testosterone are linked to increased insulin resistance, especially in women with polycystic ovary syndrome.

Different types of stem cells and their environments are key to skin repair and maintenance.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

African Americans have less hair density than whites.

Foxp3 is crucial for regulatory T cell function, and targeting these cells may help treat immune disorders.