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A substance called VIP might protect hair follicles from being attacked by the immune system, and problems with VIP signaling could lead to hair loss in alopecia areata.

Cell aging can be both good and bad for tissue repair.

Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.

Transit-amplifying cells are crucial for tissue repair and can contribute to cancer when they malfunction.

Glutathione helps Arabidopsis roots adapt to low phosphate by regulating a specific growth pathway.

Women generally handle heart enlargement better than men, but it's riskier for them if it occurs; hormones like estrogen offer some protection.

Understanding chaos and control mechanisms in disease can improve diagnosis and prediction in medicine.

Some growth factors, while important for normal body functions, can cause diseases when not regulated properly.

Gene network oscillations inside hair stem cells are key for hair growth regulation and could help treat hair loss.

Epidermal stem cells have various roles in skin beyond just maintenance, including forming specialized structures and aiding in skin repair and regeneration.

Understanding how epigenetic regulation affects stem cells is key to cancer insights and new treatments.

The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.

AKR1D1 controls glucocorticoid levels and receptor activity in liver cells.

Adipose-derived stem cells show potential for skin rejuvenation and wound healing but require more research to overcome challenges and ensure safety.

Eating less and exercising more, with personalized diet plans and realistic goals, can lead to weight loss and better health, but more research is needed for long-term success.

Finasteride affects frog testes by increasing testosterone, decreasing 5α-DHT, and impacting genes related to reproduction and other functions.

Redheaded people may have evolved to efficiently make vitamin D in areas with less sunlight.

Genetic defects in testosterone production can cause hormonal and developmental disorders, and more research is needed to understand androgen regulation and develop safer treatments.

Antioxidants might help prevent pressure ulcers, but more research is needed to find effective ones.

The document concludes that sex hormones are crucial for mammalian reproduction, health, and behavior, and require more research for therapeutic use.

Goat skin changes with the seasons due to genes affected by daylight and hormones.

Blue light might help treat skin conditions by affecting the skin's bacteria.

Different light affects cell functions and can help treat skin conditions.

Increasing sebum production might help reduce fat and improve metabolism.

Zinc is essential for plant growth and human health, but many soils lack enough zinc, affecting crops and potentially leading to health problems.

The Hairless gene is crucial for healthy skin and hair growth.

Ovol2 is crucial for hair growth and skin healing by controlling cell movement and growth.

A gene mutation in Lama3 is linked to a common type of hair loss.

Cannabinoids may help treat various skin conditions.

Melatonin affects skin and hair color and protects skin cells, with potential benefits for hair growth and skin health.