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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.

Melanocytes produce melanin; their defects cause vitiligo and hair graying, with treatments available for vitiligo.

Hair ages and thins due to factors like inflammation and stress, and treatments like antioxidants and hormones might improve hair health.

Gene therapy shows promise for treating skin disorders and cancer, but faces technical challenges.

Androgenetic alopecia involves immune cell disruptions, especially increased CD4+ T cells around hair follicles.

Excessive blue light harms eye cells and disrupts sleep patterns.

A brain-made hormone can protect against memory-related brain damage caused by harmful proteins.

Scientists are using clumps of special stem cells to improve organ repair.

One Ashwagandha extract may help protect cells with its antioxidant properties, while another could promote hair growth.

Finasteride may help treat childhood brain tumors by activating certain genes.

WNT10B is linked to cancer development and affects survival and disease progression in various cancers.

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

Trichotillomania is a chronic hair-pulling disorder, more common in females, treated with therapy and sometimes medication.

Thymosin β4 and VEGF are important for blood vessel formation in many organs.

Mice treatments didn't grow hair, a patient treatment may affect immune response, and people with hair loss often feel anxious or depressed.

Lymphatic vessels help hair follicles regenerate by interacting with stem cells.

Removing the ATR gene in adult mice causes rapid aging and stem cell loss.

Polymeric nanoparticles show promise for treating skin diseases.

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.

Two-photon microscopy helps observe hair follicle stem cell behaviors in mice.

Ginseng and its compounds may help hair growth and prevent hair loss, but more human trials are needed to confirm this.

Valproic acid may help hair grow and could be a safe treatment for hair loss.

Aconiti Ciliare Tuber extract may help hair grow by activating a specific cell signaling pathway.

Apple extract called procyanidin B-2 was found to greatly increase hair growth.

Men and women have different levels and production of brain steroids, which may affect their risk for certain brain disorders.

Somatostatin may help protect hair follicles from immune attacks.

MED1 affects skin wound healing differently in young and old mice.

When skin blisters, healing the wound is more important than growing hair, and certain stem cells mainly fix the blisters without helping hair growth.

Autoimmune polyglandular syndrome can cause temporary brain issues that may improve on their own.

Topical L-thyroxine may help with wound healing and hair growth but should be used short-term due to potential risks.