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Damaged hair follicle stem cells can cause permanent hair loss, but understanding their role could lead to new treatments.

Melatonin helps Cashmere goats grow more hair by affecting certain genes and cell pathways.

Finasteride reduces new brain cells in male mice, possibly causing depression.

Dihydrotestosterone increases certain inflammatory signals in skin cells, potentially contributing to acne.

Cellular senescence has both cancer-blocking and cancer-promoting effects, and targeting senescent cells may improve health and lifespan.

Menopause affects hair and skin; more research needed for treatment.

Oral retinoids are effective for treating severe skin disorders but have reversible side effects and risks for pregnant women.

Polyamines are important for hair growth, but more research is needed to understand their functions and treatment potential.

Immune cells help regulate hair growth, and better understanding this can improve hair loss treatments.

Diagnosing hair loss disorders needs clinical, dermoscopic, and histological differences, and checking menstrual cycle, weight changes, drug therapy, and nail changes.

Proper control of β-catenin activity is crucial for development and preventing diseases like cancer.

Different markers are found in stem cells of the scalp's hair follicle bulge and the surrounding skin.

Immune cells affect hair growth and could lead to new hair loss treatments.

Hair loss in cancer patients can be related to the cancer itself, treatment, or other conditions, and understanding it is important for diagnosis and patient care.

New drugs for heart disease may be developed from molecules secreted by stem cells.

The protein Par3 is crucial for healthy skin, affecting the skin barrier, cell differentiation, and stem cell maintenance.

Infertile men are more likely to produce sperm with abnormal chromosome numbers, which can affect pregnancy success and embryo health.

The review found that different stem cell types in the skin are crucial for repair and could help treat skin diseases and cancer.

Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.

Intralesional therapy for keratoacanthoma is effective and has fewer side effects than systemic treatments.

Skin aging is caused by stem cell damage and can potentially be delayed with treatments like antioxidants and stem cell therapy.

The spiny mouse is a unique menstruating rodent that can help us understand menstruation and reproductive disorders.

The document concludes that understanding how adult stem and progenitor cells move is crucial for tissue repair and developing cell therapies.

Genetic research has advanced our understanding of skin diseases, but complex conditions require an integrative approach for deeper insight.

Chemotherapy causes hair loss starting soon after treatment begins and recovers about 3 months after ending, while tamoxifen does not significantly affect hair growth.

The document concludes that accurate diagnosis of hair loss in children is crucial due to limited treatment options and the condition's psychological impact.

Men with hair loss have more DNA changes in back-of-head hair follicles, possibly protecting them from thinning.

Colchicine can inhibit hair growth by affecting cell activity and protein expression in hair follicles.

KLF4 is important for maintaining skin stem cells and helps heal wounds.

Stopping the pill and giving birth both caused hair loss.