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Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

A certain smell receptor in hair follicles can affect hair growth when activated by a synthetic sandalwood scent.

The document concludes that eyelash trichomegaly, which is the abnormal growth of eyelashes, can be present from birth, caused by diseases, or result from certain medications.

New treatments for advanced skin cancer are improving patient outcomes, but drug resistance and finding the right treatment combinations are still big challenges.

Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.

The industry should promote pure luxury hair fibers, improve technology, and diversify products to support growers and ensure sustainable use.

The research found that the gene activity in mouse skin stem cells changes significantly as they age.

Vav2 and Vav3 proteins help control skin stem cell numbers and activity in both healthy and cancerous cells.

Upadacitinib significantly improved a man's severe scalp condition when other treatments failed.

Pangolins have lost some skin-related genes, but kept others, leading to their unique scales and skin features.

Vav2 changes how hair follicle stem cells' genes work as they age, which might improve regeneration but also raise cancer risk.

Myo-inositol supplements may improve insulin sensitivity and help with conditions like PCOS and gestational diabetes, but more research is needed.

The research shows that a gene called Wnt3 affects hair growth and structure, causing short hair and balding when overactive.

TGF-β is crucial for tissue repair and can cause diseases if not properly regulated.

The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.

Male and female bodies respond differently to stress, influenced by hormones and development stages, with implications for stress-related diseases.

Blocking COX, especially COX-2, in the skin can reduce inflammation and pain and may help prevent skin cancer.

Stem cell niches support, regulate, and coordinate stem cell functions.

Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.

Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

Blocking the Wnt pathway could lead to new treatments for cancer and tissue repair but requires careful development to avoid side effects.

Mutant CDP/Cux protein causes hair defects and reduced male fertility in mice.

The nude gene causes skin cell overgrowth and improper development, leading to hair and urinary issues.

Beta-caryophyllene helps improve wound healing in mice, especially in females.

Androgen receptors are key for development and health, affecting conditions like prostate cancer and male pattern baldness.

The conclusion is that individual differences in COVID-19 severity are influenced by factors like age, sex, race, and genetics, which are important for personalized medicine.

Products should be called 'sperm-safe' only after thorough, well-designed tests.

Tcf3 helps cells move and heal wounds by controlling lipocalin 2.

Manatee whiskers are specially adapted for touch in water.

Beard and scalp hair cells have different gene expressions, which may affect beard growth characteristics.