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Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.

Chronic stress in mice changes skin metabolism and gene expression, leading to hair loss.

Found key genes affecting hair loss, immune response, and skin development; more research needed for better treatments.

The new "whisker follicle microinjection assay" can test how different biomolecules affect hair growth and color.

Cyclosporine A slows down hair loss from chemotherapy in mice, while dexamethasone increases hair loss but speeds up regrowth.

Melatonin improves cashmere goat hair quality by increasing follicles and reducing skin aging.

Tadalafil and Finasteride may help treat aggressive melanoma.

Androgenetic alopecia, or hair loss, is caused by a mix of genetics, hormones, and environment, where testosterone affects hair growth and causes hair to become smaller and grow for a shorter time.

Genomic approach finds new possible treatments for hair loss.

Vitiligo causes white skin patches and is linked to autoimmune issues.

Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.

Genes related to pigmentation, body rhythms, and behavior change during hares' seasonal coat color transition, with a common genetic mechanism in two hare species.

Hair follicle melanocytes die during hair regression.

Sebum production varies by individual and is influenced by age, gender, and hormones, affecting skin and hair health.

Hormonal treatments, including birth control and antiandrogens, can effectively treat acne in women.

Severe insulin resistance can be managed with medication, lifestyle changes, and treatment for related conditions.

Environmental factors like temperature and nutrition affect hair growth, with humans showing seasonal hair growth differences.

A topical treatment safely and effectively reduced acne by causing targeted cell death in sebaceous glands without side effects.

Cannabinoids may help treat various skin conditions.

Lipocalin-Type Prostaglandin D2 Synthase (L-PGDS) is a protein that plays many roles in the body, including sleep regulation, pain management, food intake, and protection against harmful substances. It also affects fat metabolism, glucose intolerance, cell maturation, and is involved in various diseases like diabetes, cancer, and arthritis. It can influence sex organ development and embryonic cell differentiation, and its levels can be used as a diagnostic marker for certain conditions.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.

Hair growth is cyclic and influenced mainly by local factors.

Male pattern baldness involves smaller hair follicles, larger oil glands, and other tissue changes, but not major blood supply issues.

Targeting the skin's endocannabinoid system could help treat skin disorders.

X-ray microbeams can mimic cosmic rays' effects on tissue, aiding wound healing and hair growth.

Caffeine improves hair growth, thickness, and reduces shedding.

Hair transplantation can successfully treat stubborn alopecia areata.

The herbal hair oil with natural extracts can improve hair health and reduce dandruff.

Linoleic acid is important for healthy skin and hair.

The document concludes that various hair and scalp disorders in children have specific treatments and proper diagnosis is essential.