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Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.

Low iron levels may be linked to some types of hair loss in women.

Latanoprost can make eyelashes longer, thicker, and darker.

Blocking JAK-STAT signaling can lead to hair growth.

Some skin medications are safe during pregnancy and breastfeeding, but others can harm the baby and should be avoided.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Chemotherapy-induced hair loss significantly affects patients' well-being, and nurses are key in helping them cope, but more research is needed to find effective treatments.

Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

Tributyltin exposure causes sex changes, sterilization, and decline in the snail Ocinebrina aciculata, risking its extinction.

Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.

Finasteride helps hair growth but may cause sexual side effects.

Male and female skin differ due to hormones, affecting conditions like hair loss, acne, and skin cancer, and suggesting a need for gender-specific treatments.

Alopecia areata causes hair loss, has no cure, and various treatments exist.

Congenital Adrenal Hyperplasia is a genetic disorder with two forms, causing symptoms like early puberty and severe acne, but can be identified through screening and treated with glucocorticoids.

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.

Palliative chemotherapy is cost-effective for advanced gastric and colorectal cancer but not clearly for pancreatic-biliary cancer.

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

Patients with certain skin symptoms and high ANA titers should be monitored for potential systemic lupus.

Keratinocytes help heal skin wounds by interacting with immune cells and producing substances that kill pathogens.

Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.

The WNT signaling pathway is important in many diseases and targeting it could offer new treatments.

Lupus affects the body and skin, causing joint pain and skin issues that can be treated with steroids and antimalarial drugs.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Postpartum depression is linked to changes in brain chemicals, inflammation, stress, and certain genes, and can potentially be identified by markers like specific steroids, serotonin levels, and vitamin D levels.

Taxane chemotherapy can cause skin, hair, and nail side effects, which are often under-reported and can affect patient quality of life.