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Hair greying is seen as a sign of aging; temporary fixes like hair dye are used, but a balanced diet and hair care can help manage it.

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

Hair grays due to oxidative stress and fewer functioning melanocytes.

Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.

White hair grows thicker and faster than black hair due to higher activity of growth-related genes and proteins.

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

Radiation mainly affects keratinocyte stem cells, not melanocyte stem cells, causing hair to gray.

Supercritical CO2 extraction makes rice bran oil healthier and safer than traditional methods.

Men are more likely to have severe respiratory viral infections like COVID-19 due to hormonal and genetic differences, while women generally have stronger immune responses.

The document concludes that treating androgen excess needs patience, managing expectations is important, and many drugs used are not officially approved, suggesting cosmetic options for mild cases.

Get head MRI for babies with achondroplasia early, use free immunoglobulin light chains to detect certain neurodevelopmental disorders, and video calls work for speech therapy in patients with facial anomalies.

Semecarpus anacardium leaf extract fights breast cancer and extends survival in mice.

MicroRNAs are crucial in controlling cell signaling, affecting cancer and tissue regeneration.

Improving artificial vascular grafts requires better materials and surface designs to reduce blood clotting and support blood vessel cell growth.

Anticancer drugs are increasingly found in surface waters, and their long-term environmental effects are not well understood, requiring better testing methods.

Wnt signaling is crucial for pigmented hair regeneration by controlling stem cell activation and differentiation.

Dermatologists need to understand hair products to treat hair and scalp issues better.

The document concludes that developing generic topical drugs requires ensuring they match the original in quality, composition, and structure, and often involves complex testing and regulatory steps.

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

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

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

Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.

Layer-by-Layer self-assembly is promising for biomedical uses like tissue engineering and cell therapy, but challenges remain in material safety and process optimization.

Activating the Wnt/β-catenin pathway could lead to new hair loss treatments.

The skin protects the body and is constantly renewed by stem cells; disruptions can lead to cancer.

Environmental factors, hormones, nutrition, and stress all significantly affect skin health and aging.

Costunolide may have multiple health benefits, including promoting hair growth and protecting against cancer and diabetes, but more research is needed.

Beta-sitosterol has potential health benefits but needs more research to fully understand its effects and improve its use in treatments.

Mushrooms have beneficial properties for skin and hair care products and have great potential for future cosmetic use.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.