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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.

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 timing of when the gene Bmal1 is active affects aging and survival, with its absence during development, not adulthood, leading to premature aging.

Understanding where cancer cells come from helps create better prevention and treatment methods.

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

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.

A gene called APCDD1, which controls hair growth, is found to be faulty in a type of hair loss called hereditary hypotrichosis simplex.

Male and female bodies respond differently to stress, influenced by hormones and development stages, with implications for stress-related diseases.

High levels of male hormones, insulin resistance, and obesity are closely linked and worsen polycystic ovary syndrome, but more research is needed to improve treatments.

The ZIP7 gene helps control zinc levels in cells by moving zinc from the Golgi apparatus to the cytoplasm.

The hedgehog signaling pathway is crucial for hair growth but not for the initial creation of hair follicles.

Melatonin may benefit skin health and could be a promising treatment in dermatology.

Finasteride for hair loss can cause long-lasting sexual side effects like low libido and erectile dysfunction.

Opioid painkillers can cause many side effects, including breathing problems and addiction, but are generally considered safe when used properly.

Erectile dysfunction is increasingly common in men under 40, with many physical and psychological causes, and various treatment options available.

Bone Morphogenetic Proteins (BMPs) help control skin health, hair growth, and color, and could potentially be used to treat skin and hair disorders.

A substance called DKK-1 increases in balding areas and causes hair cells to die when exposed to DHT.

The document concludes that the exact way alcohol causes harm to fetal development is unknown, but it significantly affects nutrient transport to the fetus and a safe level of alcohol during pregnancy is not determined.

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

Stem cell niches support, regulate, and coordinate stem cell functions.

Researchers developed promising agents for prostate cancer imaging, with the best one showing high potential for clinical use.

Cathepsin L is essential for normal hair growth and development.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

The document concludes that adenosine receptor agonists have potential for treating various conditions, but only a few are approved due to challenges like side effects and the need for selective activation.

GABRA2 gene variations impact alcohol response, and hair loss medication finasteride reduces some effects.

The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.

Inflammation may be linked to hair loss, and targeting specific enzymes could help treat it.

Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.