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Human skin can make serotonin and melatonin.

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

The Rotterdam Study updated its design and objectives in 2012, providing insights into various diseases in the elderly, including skin cancer, bone health, liver disease, neurological and psychiatric conditions, and respiratory issues.

The document concludes that the fast-growing direct-to-consumer genetic testing market lacks sufficient regulation, posing risks to consumers due to questionable test quality and accuracy.

Dermoscopy is a useful tool for identifying features of skin conditions, but more research is needed to define its role in dermatology.

Low iron and L-lysine levels can cause hair loss in women, and increasing these nutrients can reduce hair shedding.

Hidradenitis suppurativa, a chronic skin disease, can be managed with antibiotics, lifestyle changes, and in severe cases, surgery. Early diagnosis and careful planning are key, and laser treatment can be an efficient solution for mild to severe cases.

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

BAY 43-9006 helps control kidney cancer growth but doesn't significantly increase overall survival.

Creating stronger blockers for skin enzymes might lead to better treatment for conditions like acne and excessive hair growth.

Acne affects most teenagers and can continue into adulthood, with various treatments available that show improvement but have concerns like antibiotic resistance and side effects.

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.

Some patients taking finasteride or dutasteride may have ongoing sexual problems and depression even after stopping the medication.

Eph receptors and ephrins may be promising targets for treating diseases, but more understanding is needed for effective and safe therapies.

Melatonin is important for skin health and protection, and can be made by the skin or applied to it.

Hair loss affects women's mental health more than men's, causing anxiety, low self-esteem, and social insecurity.

Adding anti-Müllerian hormone to PCOS criteria lowers the number of women diagnosed.

The Rotterdam Study aims to understand various diseases in older adults.

Mice lacking the PPARγ gene in their fat cells had almost no fat tissue, severe metabolic problems, and abnormal development of other fat-related tissues.

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

Guidelines suggest various treatments for alopecia areata, but leaving it untreated is also an option as 80% cases may recover on their own.

Tiny pollution particles called PM2.5 can harm skin cells by causing stress, damage to cell parts, and cell death.

About 7% to 15% of Iranian women have polycystic ovary syndrome, depending on the criteria used to diagnose it.

Dutasteride more effective for hair growth, but has more side effects than finasteride.

Telogen effluvium is a reversible hair loss condition that requires a detailed diagnosis and often resolves on its own.

The guidelines suggest a detailed approach to diagnosing and treating lupus, with a focus on regular check-ups, personalized medicine, and a range of drug options for different cases.

The document provides a method to classify human hair growth stages using a model with human scalp on mice, aiming to standardize hair research.

Planarian regeneration begins with a specific gene activation caused by injury, essential for healing and tissue regrowth.

Minoxidil and finasteride treat hair loss in men, while minoxidil treats hair loss in women.