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

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

Single hair grafting is effective for treating small, localized patches of vitiligo.

Acne can't be cured but can be managed with treatments like benzoyl peroxide and diet changes; it's costly and can lead to scarring and mental health issues.

The Foxn1(-/-) nude mouse shows disrupted and expanded skin stem cell areas due to high Lhx2 levels.

Th22 cells are essential for Tβ15-induced hair growth in mice.

Current methods can't fully recreate skin and its features, and more research is needed for clinical use.

A new small peptide may help hair growth by activating a specific receptor and should be tested in humans.

Fish oil increased cell growth and macrophages in the skin but didn't affect COX-2 expression.

QR678 Neo® improved seborrheic dermatitis symptoms in a small group of patients.

MILL molecules are unique immune proteins in mice that don't need TAP to appear on cell surfaces.

The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.

UV exposure reduces Lgr6+ stem cells in mouse skin and they don't significantly contribute to skin cancer development.

External factors can cause skin cancer cells that usually don't spread to grow and form tumors in mice.

Dihydrotestosterone (DHT) mainly affects nearby cells, doesn't significantly change prostate hormonal environment or cancer risk, and doesn't play a main role in causing hair loss or acne. More research is needed on its effects on heart health, sexual function, and bone health.

3D imaging of skin biopsies offers better accuracy but is time-consuming and can't clear melanin.

Nirmatrelvir/Ritonavir treatment may lead to a weaker immune response to COVID-19, but doesn't affect the chance of rebound.

Trichogerminoma is a rare, benign skin tumor from hair cells, with a small risk of becoming cancerous.

Unconventional lymphocytes are important for quick immune responses and healing of skin and mucosal barriers.

Canine pemphigus foliaceus involves significant immune activity and shares similarities with human pemphigus.

Mice with human fetal thymic tissue and stem cells developed symptoms similar to chronic graft-versus-host disease.

Blocking JAK3 signaling can reverse hair loss from alopecia areata.

The document concludes that understanding and treatments for alopecia areata have significantly advanced, now recognizing it as an autoimmune disorder.

Prostate cancer can progress even with low testosterone due to internal hormone production in the tumor.

New treatments for hair loss from alopecia areata may include targeting immune cells, using stem cells, balancing gut bacteria, applying fatty acids, and using JAK inhibitors.

Minoxidil can cause a skin reaction called ALEP.

A gluten-free diet significantly improves skin and health issues in people with dermatitis herpetiformis, a skin condition linked to celiac disease.

Valproic Acid helps regrow hair in mice and activates a hair growth marker in human cells.

Benign follicular mucinosis involves immune cells attacking hair follicles.

MDSC-Exo can treat autoimmune alopecia areata and promote hair regrowth in mice.