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Many adults in Porto have acne, but few know or treat it.

N-acetyl-L-cysteine (NAC) can prevent DNA damage and protect cells from harm.

A horse in Brazil with skin and gut issues was diagnosed with a severe disease and had to be euthanized.

A postmenopausal woman's masculine symptoms improved after surgery for a hormone-producing ovarian tumor.

Thymoma in cats can cause hair loss without inflammation.

Hormonal changes and psychological issues can cause sexual dysfunction in postmenopausal women. Behavioral therapy is recommended first, with hormone replacement helping some symptoms but not libido. Testosterone can improve libido, but its effects on overall sexual function are unclear. Emotional and relationship issues should be addressed before using medication, and the benefits and risks of testosterone supplementation should be considered.

Small hormonal imbalances can cause significant health problems, so more sensitive testing for hormone-disrupting chemicals is needed.

Venous catheterization may help diagnose the cause of female hyperandrogenism when imaging is unclear.

A cross-bred lamb with severe skin and movement issues had ichthyosis fetalis but normal vitamin A levels.

A spayed dog with vaginal bone structures causing infection was successfully treated by removing the bones and administering medication.

Double-stranded RNA helps regenerate hair follicles by increasing retinoic acid production and signaling.

Platelet-rich plasma injections are an effective treatment for hair loss with minimal side effects.

Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.

The conclusion is that certain cell interactions and signals are crucial for hair growth and regeneration.

Interferon, especially alfa interferon, is an effective treatment for cutaneous T-cell lymphoma with manageable side effects.

The Wnt/β-catenin pathway helps tissue regeneration but can also cause fibrosis, and drugs that inhibit this pathway may aid in healing skin and heart tissues.

Growth factors are crucial for hair development and could help treat hair diseases.

Shampoos are designed to clean and improve hair and scalp health, with specific ingredients for different hair types and conditions.

Hair diversity is influenced by complex genetics and environmental factors, requiring more research for practical solutions.

Hair disorders are caused by a complex mix of biology, genetics, hormones, and environmental factors, affecting hair growth and leading to conditions like alopecia.

The long-pulsed alexandrite laser is effective for hair reduction, particularly for light-skinned individuals with dark hair, but caution is needed for darker skin.

The document concludes that understanding how adult stem and progenitor cells move is crucial for tissue repair and developing cell therapies.

Laser hair removal works well for people with dark hair and light skin, but it's less effective for light hair or dark skin; improvements are expected.

Early medical support for transgender youth is important for their health, with low regret for gender-affirming hormone use and a need for knowledgeable care providers.

Gene regulation could revolutionize hair color by altering pigmentation from within.

A substance from hair follicle stem cells helps heal skin wounds in diabetic mice by promoting cell growth and preventing cell death.

Resveratrol helps prevent finasteride-induced damage in male rats, improving reproductive function.

Finasteride use can cause lasting negative effects like sexual dysfunction, depression, anxiety, and cognitive issues.

Urologic diseases and treatments in older men can negatively affect fertility, and doctors should talk to patients about this.

Testosterone and dihydrotestosterone have similar effects on body composition and metabolic health in men.