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Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.

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

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

Fungi-produced compounds can change plant root growth.

A new microneedle patch made from hair proteins helps regrow hair faster and better than current treatments.

Minoxidil boosts growth factor in hair cells, potentially promoting hair growth.

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

Hair and wool have complex microscopic structures with microfibrils and varying cystine content.

Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.

Regulatory T-cells are important for healing and regenerating tissues in various organs by controlling immune responses and aiding stem cells.

Finasteride treats enlarged prostate and may help with baldness, but effects on sexual function and male fetuses are unclear.

Men are more likely to have severe COVID-19 cases and fatalities than women due to factors like lifestyle, aging, and biological differences.

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.

Essential oils in cosmetics can offer benefits but may cause allergies and should be used carefully.

Spironolactone is a safe and effective treatment for reducing excessive hair growth in women.

The PDGF/PDGFR pathway is a potential drug target with mixed success in treating various diseases, including some cancers and fibrosis.

Androgens can help prevent memory problems caused by apoE4.

Certain mutations in a hair growth-related gene cause a type of genetic hair loss.

Cancer treatments targeting specific cells and the immune system can cause skin, mouth, hair, and nail problems, affecting patients' quality of life and treatment adherence.

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

Oral antiandrogens effectively treat female hair loss, with better results in higher hair loss grades.

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

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

Alopecia areata involves immune activation in the scalp, suggesting treatments targeting TH1, TH2, and IL-23 pathways.

Oestrogens are key for bone growth during puberty in both boys and girls.

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.

Epidermal stem cells are diverse and vary in activity, playing key roles in skin maintenance and repair.

Fibromodulin might help reduce scarring if increased in adult wounds like in fetal skin that heals without scars.