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Humans lost body hair relatively recently in evolution.

Scalp dermoscopy is good for diagnosing a type of hair loss and helps choose the best spots for biopsy.

Silver can help prevent and treat infections but its effectiveness varies and should be weighed against costs and side effects.

Stem cell self-renewal is complex and needs more research for full understanding.

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

Keratinocytes help heal skin wounds by interacting with immune cells and producing substances that kill pathogens.

The document concludes that accurate diagnosis of ichthyosis is crucial for treatment and genetic advice, and ongoing research is needed for better therapies.

The WNT signaling pathway is important in many diseases and targeting it could offer new treatments.

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.

Postpartum depression is linked to changes in brain chemicals, inflammation, stress, and certain genes, and can potentially be identified by markers like specific steroids, serotonin levels, and vitamin D levels.

Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.

Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.

Understanding hair follicle anatomy helps diagnose hair disorders.

Masculine facial features may not reliably indicate heritable health, and more research is needed.

Minoxidil promotes hair growth in male pattern baldness.

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

Male pattern hair loss could hint at androgens affecting COVID-19 severity.

Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

Microneedles help improve skin appearance and deliver skin treatments effectively, but safety concerns need more research and regulation.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Obesity worsens PCOS symptoms, and PCOS may lead to more weight gain; managing both requires a holistic approach that includes mental health.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

Hibiscus rosa-sinensis leaf extract helps hair grow longer and faster.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Men generally have more severe COVID-19 cases and higher death rates than women due to biological differences.

Cepharanthine is a well-tolerated drug with multiple medical uses, including anti-inflammatory and anti-cancer properties.

Targeting androgen receptors could be a promising way to treat skin disorders with fewer side effects.