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

The guidelines advise against using testosterone and DHEA in women for most conditions due to safety and effectiveness concerns, but suggest considering testosterone for postmenopausal women with low sexual desire.

Insulin resistance is a key factor in polycystic ovary syndrome, but genetics may also contribute.

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.

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

The method can effectively extract biomedical information without needing expert annotation, performing better than previous models.

Androgen deprivation therapy for prostate cancer can cause sexual, physical, and psychological side effects, and doctors should manage these carefully.

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

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

Biomaterials with MSC-derived substances could improve tissue repair and have advantages over direct cell therapy.

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

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

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

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

PrEP for HIV is less effective in transgender women mainly due to low adherence to the treatment.

Metformin helps manage polycystic ovary syndrome by improving insulin resistance and ovulation, but more research is needed on its full effects.

The virus was not found in the semen and urine of a man who tested positive for COVID-19.

Lifestyle changes can improve body composition, excess male hormone levels, and insulin resistance in women with PCOS.

Genetic variation in the androgen receptor gene mainly causes early-onset hair loss, with maternal inheritance playing a key role.

Most women with excess hair growth have an underlying hormonal issue, often treated with medication and hair removal methods.

Stress stops hair growth in mice by causing early hair growth phase end and harmful inflammation through a specific nerve-related pathway.

Alopecia areata is likely an autoimmune disease with unclear triggers, involving various immune cells and molecules, and currently has no cure.

Researchers found 19 genes important for root hair growth in a plant called Arabidopsis.

Hair loss affects self-esteem and quality of life; treatments can help.

Epigenetic changes control how adult stem cells work and can lead to diseases like cancer if they go wrong.

Jumonji genes are important for development and their mutations can cause abnormalities, especially in the heart and brain.

Hormone treatments in transsexual individuals reduce hair growth and oil production in male-to-females and increase them in female-to-males.

Some medicinal plants can help heal wounds and may lead to new treatments.

Lower doses of treatments for hirsutism and acne in PCOS are effective and cause fewer side effects.