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Stress can worsen skin and hair conditions by affecting the skin's immune response and hormone levels.

The bulletin provides guidelines for diagnosing and managing PCOS, suggesting weight loss, hormonal contraceptives, and diabetes screening, with clomiphene for infertility and various treatments for excess hair.

The Rotterdam Study updated findings on elderly health, focusing on heart disease, genetics, lifestyle effects, and disease understanding.

Hair and nail cells share similar proteins, indicating a common differentiation pathway.

Human skin can make serotonin and melatonin, which help protect and maintain it.

Stem cell niches are crucial for regulating stem cell behavior and tissue health, and their decline can impact aging and cancer.

Lgr5 is a marker for active, self-renewing stem cells in the intestine and skin, important for tissue maintenance.

Super-enhancers controlled by pioneer factors like SOX9 are crucial for stem cell adaptability and identity.

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

Different types of fibroblasts play various roles in diseases and healing, and more research on them could improve treatments.

The ginseng market has potential for growth and needs new products and better marketing.

TRPA1 is crucial for mechanical sensitivity in skin sensory neurons.

Chemotherapy can cause various skin reactions, with hair loss being the most common, and proper diagnosis and treatment of these reactions are important.

Zinc oxide nanoparticles in sunscreen do not penetrate deep into the skin.

Melatonin in the skin helps protect against damage from stress and UV rays, and could be used to treat certain skin conditions.

Hair loss and aging are caused by the breakdown of a key protein in hair stem cells.

Tofacitinib is effective and safe for severe hair loss, but full regrowth is less likely after 10 years of hair loss.

Fat cells help recruit healing cells and build skin structure during wound healing.

The report recommends personalized treatment for women's sexual dysfunctions and more research on effective therapies.

Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.

Stem cells are crucial for skin repair and new treatments for chronic wounds.

Cells from balding scalps have more androgen receptors than cells from non-balding scalps.

Insulin resistance and obesity are key factors in the development and worsening of polycystic ovary syndrome, and lifestyle changes are important for managing it.

Melatonin may help with sleep issues, depression, and cancer, but more research is needed.

Different types of skin cells play specific roles in development, healing, and cancer.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Skin needs dermal β-catenin activity for hair growth and skin cell multiplication.

Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.

Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.

Artificial skin development has challenges, but new materials and understanding cell behavior could improve tissue repair. Also, certain growth factors and hydrogel technology show promise for advanced skin replacement therapies.