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3D bioprinting is advancing in plastic and reconstructive surgery, especially for creating tissues and improving surgical planning, but faces challenges like vascularization and material development.

The new "whisker follicle microinjection assay" can test how different biomolecules affect hair growth and color.

Monkey hair cortisol levels are not affected by how fast their hair grows.

New understanding and treatments for hair loss are improving, but more research is needed.

Using focused ultrasound on the brain can help epilepsy medicine work better in rats.

COVID-19 may worsen hair loss, and Nourkrin® could be a safe treatment option, but more research is needed.

Certain vitamins in wrong amounts, alcohol abuse, metals, and other toxins can cause serious brain and nerve damage.

Placebo effects vary in hair loss trials, with split-scalp trials showing higher hair density after 6 months compared to whole-head trials.

3D microenvironments in microwells improve hair follicle stem cell behavior and hair regeneration.

Dyeing hair can help target and destroy hair follicles selectively.

Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.

Chemical treatments can change the scale heights of wool and cashmere fibers, affecting their identification.

Testosterone can slow down hair growth when combined with certain cells from bald scalps, and this effect can be blocked by an androgen receptor blocker.

The new method improves facial image restoration quality and face recognition accuracy.

Chemical hair straighteners can cause scalp and hair damage, but long-term effects are unclear.

Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.

Cell polarity signaling controls tissue mechanics and cell fate, with complex interactions and varying pathways across species.

A new surgical method using special sutures significantly reduced wound size and prevented disease return in patients with a scarring scalp condition.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

BMP2 and BMP7 have opposite roles in feather formation.

Excipients greatly affect how well curcumin nanocrystals penetrate the skin and target hair follicles.

The document concludes that computational models are useful for understanding immune responses and could improve cancer immunotherapy.

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

Lotions release minoxidil better than creams, with a recommended mix of propylene glycol, water, and ethanol improving effectiveness.

Photographic imaging is crucial for documenting and managing hair loss, requiring careful preparation and standardization to be effective.

The simulation showed that hypobaric pressure improves drug delivery through the skin, but stretching alone doesn't fully explain the increase.

The Rotterdam Study aims to understand various diseases in older adults.

Hair loss in androgenetic alopecia is caused by genetic factors and androgen excess, and can be treated with combined therapies.

Herbs can potentially treat hair loss by inhibiting a key enzyme and promoting hair growth, and deficiencies in zinc, biotin, and iron are linked to hair loss.

The study found that the Marangoni effect causes the uneven wetting of surfactant-coated hair due to the surfactant moving into the water.