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Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.

The document explains how hair follicles develop, their structure, and how they grow.

The document concludes that identifying the specific cells where skin cancers begin is important for creating better prevention, detection, and treatment methods.

The document reviews various hair and nail disorders, their causes, and treatments, emphasizing the need for proper diagnosis and the link between nail changes and systemic diseases.

The ingredients could help prevent hair loss by promoting hair growth and increasing VEGF secretion.

The plant extract remedy Satura® Rosta promotes hair growth and regrowth without negative effects.

Nerve growth factor helps cashmere goat hair cells grow and is more active during the hair growth phase.

Rhamnose may help hair growth and pigmentation, making it a potential treatment for hair loss.

Pilose antler extracts help hair growth by activating hair follicle stem cells.

GRK2 is essential for healthy hair follicle function, and its absence can lead to hair loss and cysts.

Freezing gamma-irradiated amniotic fluid may help hair growth and speed up the growth phase.

The mTOR signaling pathway is crucial for hair health and targeting it may lead to new hair loss treatments.

Certain long non-coding RNAs are important for controlling hair growth cycles in sheep.

The document concludes that the development of certain tumors is influenced by genetic background and that a specific gene modification can lead to tumor regression and reduced growth.

Hair follicle stem cells in hairpoor mice are disrupted, causing hair loss.

Some drugs can cause reversible hair loss, but certain chemotherapy drugs may lead to permanent hair loss; drugs can also change hair color and texture.

Both Th1 and Th2 immune responses are increased in alopecia areata, with Th2 response more strongly linked to how severe the disease is.

Topical tofacitinib is effective in promoting hair growth for non-scarring alopecia.

Human hair follicle cells can be turned into stem cells that may help clone hair for treating hair loss or burns.

A chemical called 5-Bromo-2′-deoxyuridine caused rapid hair loss in mice by killing certain skin cells through a specific cell death pathway.

Fat-derived stem cells and their secretions show promise for treating skin aging and hair loss.

Nanocarriers like liposomes and cyclodextrins improve how angiotensin-(1-7) is delivered in the body.

Rubus coreanum may help hair growth but not through the tested mechanisms, and none of the herbal extracts help with acne.

Near-infrared LED light improves skin rejuvenation and hair growth better than white LED light.

The anti-hair loss shampoo effectively promotes hair growth and improves hair quality.

Mouse skin glands need healthy nerves to grow properly during hair growth phases.

Hair follicles repair 3D injuries using a 2D healing process.

Polyunsaturated fatty acids, like arachidonic acid and eicosapentaenoic acid, can promote hair growth and may help treat hair loss.

Some vaccines, like the hepatitis B vaccine, might be linked to the hair loss condition Alopecia Areata, but more research is needed.

Chrysanthemum zawadskii extract may help treat hair loss by promoting hair growth and affecting growth factors.