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Low doses of some substances can be beneficial, while high doses can be harmful or toxic.

The article concludes that while we understand a lot about how melanocytes age and how this can prevent cancer, there are still unanswered questions about certain pathways and genes involved.

Premature hair graying in young men is linked to family history, obesity, and smoking.

APS-1 in Italy shows diverse AIRE mutations and various autoimmune issues.

Plant-derived extracellular vesicles show promise for treating diseases like cancer and inflammation.

GRK2 is essential for healthy hair follicle function, and its absence can lead to hair loss and cysts.

Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.

The study suggests that a specific gene variation and higher gene activity are linked to increased baldness in Egyptian men.

Girls with PCOS have higher levels of certain androgens, which are linked to excess hair growth, but these androgens don't help diagnose PCOS.

The 2023 guideline for PCOS suggests using updated diagnostic criteria, assessing related health risks, and recommends lifestyle changes and specific treatments for symptoms and fertility issues.

Gray hair may be caused by lower antioxidant activity in hair cells.

Cucurbitacin helps mice grow hair by blocking a protein that stops hair growth.

SDF-1/CXCL12 and its receptor CXCR4 are crucial for melanocyte movement in mouse hair follicles.

Chemotherapy-induced hair loss is partly due to decreased laminin-511 and increased laminin-332.

Alcohol extract from Vernonia anthelmintica seeds may help treat stress-related hair loss.

Scaffold-based strategies show promise for regenerating hair follicles and teeth but need more research for clinical use.

Rare ULBP3 gene changes may raise the risk of Alopecia areata, a certain FAS gene deletion could cause a dysfunctional protein in an immune disorder, and having one copy of a specific genetic deletion is okay, but two copies cause sickle cell disease.

YangHyulEum Gami-Bang extract may help treat hair loss.

The plant extracts may help treat hair loss by promoting hair growth and reducing DHT levels.

Standardized procedures are crucial for collecting and preparing biological samples to ensure accurate clinical metabolomics results.

Custom skincare can be made based on genes, fewer cats in Lublin have FeLV/FIV than national average, and studies also looked at small water bodies, river pollution, guppy growth, toxins in biochars, palm oil issues, and pumpkin seed oil for hair strength.

Syphilis is becoming more common and remains a major health problem due to challenges in prevention and treatment.

Alopecia X in dogs is a cosmetic issue, not a hormonal disorder, and harmful treatments should be avoided.

The study found a specific pattern of uneven melanin distribution on balding scalps that could help understand skin diseases caused by light exposure.

Laser hair removal can be effective for darker skin but requires careful use to avoid side effects.

Reflectance spectroscopy can noninvasively track hair growth stages by measuring skin reflectance and melanin changes.

Dr. Samuel M. Lam's article concludes that skilled facial fat grafting can effectively restore facial volume and serve as a complement or alternative to traditional face-lifting methods.

The document concludes that a deeper understanding of skin aging and photodamage is needed to create better skin treatments.

Skin lesions in Carney complex are likely caused by a specific group of skin cells that promote pigment production due to a genetic mutation.