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Larger prostate size in older men may be linked to poorer semen quality and fertility issues.

A woman was allergic to quinine in her anti-hair loss lotion.

Excessive hair growth in women, often from high androgen levels, is usually caused by PCOS, and can be treated with hair removal, medication, and possibly weight loss.

Ferulic acid helps stabilize vitamins C and E for better skin protection from the sun, certain compounds may promote hair growth, atopic dermatitis patients have lower skin defense molecules, older men are more likely to get a type of skin cancer, and a substance called relaxin may prevent age-related skin thickening.

After chemotherapy for a gestational trophoblastic tumor, normal pregnancy rates are possible, but there's a slightly higher risk of the tumor reoccurring in future pregnancies.

Postmenopausal ovary stromal cells have a unique makeup and limited steroid production, suggesting androgens come from the adrenal gland.

Oxygen levels can drop during liver transplant if bypass pressures are too high, but other reasons should be checked first.

The document concludes that individualized treatments for hair issues are effective, certain hair changes can indicate neurocutaneous diseases, specific lotions improve skin health, laser hair removal works but needs more study on long-term effects, men's cosmetics are diverse, peeling is effective but can have side effects, and facial pigmentation is often due to overactive skin cells.

Hair changes could indicate neurological diseases and help monitor treatment.

Mutations in the androgen receptor gene cause different levels of androgen insensitivity, making it hard to create simple tests for the condition.

Hair loss in women may have multiple causes, and eyebrow regrowth possible with specific injections.

The document concludes that better targeted treatments are needed for wound healing, and single-cell technologies may improve cell-based therapies.

Lgr5 is a marker for active, long-lasting stem cells in mouse hair follicles.

Changing the environment around stem cells could help tissue repair, but it's hard to be precise and avoid side effects.

Alopecia Areata is an autoimmune condition causing hair loss with no cure and treatments that often don't work well.

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

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

Metformin helps with menstrual cycles and insulin levels in PCOS but is less effective for hair growth, diabetes prevention, and weight loss, and may improve fertility and reduce diabetes risk.

New nanofiber technology improves wound healing by supporting cell growth and delivering treatments directly to the wound.

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

Growing human skin cells in a 3D environment can stimulate new hair growth.

The immune system plays a key role in tissue repair, affecting both healing quality and regenerative ability.

Human skin can make serotonin and melatonin.

Wnt1/βcatenin signaling is crucial for heart repair after injury.

Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.

Blocking the enzyme 5α-reductase can shrink the prostate and help treat enlarged prostate issues.

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.

Two main types of fibroblasts with unique functions and additional subtypes were identified in human skin.

The conclusion is that proper signaling is crucial for hair growth and development, and errors can lead to cancer or hair loss.