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Disrupted cholesterol production impairs hair follicle stem cells, leading to hair loss.

T cells and bacteria in the gut and skin help maintain health and protect against disease.

Gene therapy in mice increased lifespan and improved health without causing cancer.

The FDA warned about safety issues with remdesivir and tofacitinib, finasteride is linked to suicidality, potent topical corticosteroids increase osteoporosis risk, henna can cause hemolysis in G6PD deficiency, chemotherapeutic agents can cause adverse reactions, drug interactions are common in cancer patients, ketamine can reduce at-risk drinking, high dose of anticholinergics increases dementia risk in Parkinson's patients, and prenatal exposure to second-generation antipsychotics increases pregnancy complications.

Ecklonia cava extract may protect the scalp from pollution and improve its health.

Skin health and repair depend on the signals between skin stem cells and their surrounding cells.

BMP signaling is important for skin color, affecting melanin production, pigment spread, and cell movement.

Blocking a specific immune cell signal can trigger hair growth.

The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.

Researchers found that the Leptin receptor is a consistent marker for hair follicle dermal cells, which may help future hair research.

Lasers are FDA-approved for permanent hair reduction, not removal, and more research is needed to improve treatments.

Different medications can cause serious side effects in some people.

Some medications and supplements can cause serious side effects, including hair loss, heart rhythm problems, liver injury, and other health issues.

The document provides a comprehensive guide for dermatologists to diagnose and treat hair loss.

The Princeton III Consensus recommends assessing cardiovascular risk in men with erectile dysfunction and prioritizing heart health before treating ED, especially in those with potential heart disease.

Doctors vary in how they initially test for PCOS, but most agree on using oral contraceptives and lifestyle changes as first treatments.

Androgen levels do not determine the type of PCOS symptoms in young females.

Teens with PCOS have a higher risk of type 2 diabetes and need regular glucose checks.

Researchers successfully isolated and identified key stem cells in human hair follicles, which could help develop new skin and hair treatments.

The reviews critique three psychology books, noting skepticism about a personality inventory for teens, praising a practical guide on body image issues, and recommending a book on grief therapy.

Both books are useful for professionals, but "Exacting Beauty" is more comprehensive and practical.

Finasteride helps increase or maintain hair in most men but can cause sexual side effects and should not be used by women, especially during pregnancy.

Oral spironolactone and isotretinoin are effective for treating acne.

Penicillamine can cause taste problems due to copper loss, which can be fixed with copper or zinc supplements.

The guidelines recommend informed consent for gender-affirming treatments and stress the importance of personalized, culturally sensitive care for transgender individuals.

Polycystic Ovary Syndrome should be seen mainly as a condition of excess male hormones, with a focus on this in its definition.

The report concludes that PCOS is mainly a condition of excess male hormones and its definition may change as new information is discovered.

Experts agree that PCOS affects women's health in complex ways, but more research is needed to understand and treat it effectively.

The vitamin D receptor is crucial for bone health and affects various body systems, with mutations potentially leading to disease.

The guideline suggests using specific criteria to diagnose PCOS, recommends various treatments for its symptoms, and advises screening for related health issues.