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Hair ages due to various factors and treatments like minoxidil and finasteride can help, but more research and better public awareness are needed.

Most drugs fail to reach the market, but understanding their properties and using strategies like early toxicity tests and drug repurposing can help advance their development.

Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.

L-PGDS has specific binding sites for its functions and could help in drug delivery system design.

Proretinal nanoparticles are a safe and effective way to deliver retinal to the skin.

Hair transplantation is highly effective with careful technique and attention to patient needs.

Blood type affects COVID-19 infection rates differently in Europe and Africa.

Hair follicle melanocytes die during hair regression.

Low androgen levels might delay prostate cancer but could lead to more aggressive, therapy-resistant cancers.

Androgenic alopecia causes hair follicle degradation and skin restructuring, but some hair elements remain.

DHEA may help with sexual function when used intravaginally by menopausal women but is similar to hormone therapy in other aspects and might cause more side effects like acne and hair loss.

Plant-derived extracellular vesicles show promise for treating diseases like cancer and inflammation.

Cashmere and milk goats have different hair growth cycles and gene expressions, which could help improve wool production.

Certain changes to the B-ring of androgen receptor ligands can increase their effectiveness for potential treatments of muscle and bone conditions.

Different drugs can treat high male hormone levels in women, but they have various effects and some may harm a fetus.

Hair color is determined by different melanins and changes with age.

Using hyaluronic acid fillers for a lateral temporal lift can cause serious blood vessel issues.

Feather patterns form through genetic and epigenetic controls, with cells self-organizing into periodic patterns.

The author felt excited and honored to receive the 2016 Early Career Life Scientist Award.

The conclusion is that skin and hair patterns are formed by a mix of cell activities, molecular signals, and environmental factors.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

New treatments for prostate cancer and BPH show promise, including novel compounds that target hormone synthesis and response.

The conclusion is that genetic changes in the glucocorticoid receptor can lead to conditions affecting stress response, immunity, and metabolism, requiring personalized treatment.

Polymeric micelle nanocarriers deliver adapalene more effectively to hair follicles than commercial products.

Follicular transplantation can greatly improve hair restoration if done with detailed planning and patient evaluation.

Experienced hair transplant surgeons suggest a limited number of hair follicles can be used for transplants, and recommend conservative methods to avoid scarring and depletion.

Hair restoration techniques have improved but still rely on limited donor hair, with new methods like cloning and gene therapy being explored.

The document concludes that while "hair follicle cloning" shows promise for unlimited donor hair, it faces challenges with consistency and safety in humans.

Applying heat with certain chemicals can greatly improve how well isotretinoin gets into the skin through hair follicles.

By 2004, Follicular Unit Transplantation (FUT) was the most effective method for surgical hair restoration, while the newer Follicular Unit Extraction (FUE) had more disadvantages and was less recommended.