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

Using CRISPR for gene editing in the body is promising but needs better delivery methods to be more efficient and specific.

New treatments for hair loss, fertility, and wound healing are being explored.

Alopecia can be reversed with timely steroid treatment in VKH and SO diseases.

Using a diode laser for hair removal without eye protection can cause serious eye injuries.

The review suggests that other immune cells besides CD8+ T cells may contribute to alopecia areata and that targeting regulatory cell defects could improve treatment.

Long-term use of difluprednate eye drops in dogs can lead to hair loss and hormone imbalance.

Glucocorticoids can cause various health issues, but some treatments may help reduce these effects.

Efficient delivery systems are needed for the clinical use of CRISPR-Cas9 gene editing.

Activating β-catenin in mammary cells leads to changes that cause early-stage abnormal growths similar to skin structures.

Immune cells called Treg cells are essential for hair growth and regeneration.

Neoplasms hide in hair follicles to avoid the immune system.

Lung and liver macrophages protect our tissues and their dysfunction can cause various diseases.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Different cell types work together to repair skin, and targeting them may improve healing and reduce scarring.

SHISA6 helps maintain certain stem cells in mouse testes by blocking signals that would otherwise cause them to differentiate.

Tissue-resident memory T cells can protect against infections and cancer but may also contribute to autoimmune diseases.

Glutamine metabolism affects hair stem cell maintenance and their ability to change back to stem cells.

Tiny particles called extracellular vesicles could help with skin healing and hair growth, but more research is needed.

Sweat glands and hair follicles are structurally connected within a specific layer of skin fat.

The Ovol2-Zeb1 circuit is crucial for skin healing and hair growth by guiding cell movement and growth.

Sebaceous glands play a key role in skin health, immunity, and various skin diseases.

Blocking TSLP reduces skin inflammation and cell overgrowth in psoriasis.

Hair follicle regeneration may slow tumor growth.

Analytical chemistry helps understand the makeup and use of ancient medicines, but it's complex and challenging.

Wounds can regenerate hair in young mice, but this ability declines with age, offering insights for improving tissue regeneration in the elderly.

Cell death shapes skin stem cell environments, affecting inflammation, repair, and cancer.

Skin health and repair depend on the signals between skin stem cells and their surrounding cells.

The document suggests a bacteria plays a significant role in acne rosacea and that white hair can regain color after transplant, meriting more research on reversing grey hair.

Hair thinning causes stem cell loss through a process involving Piezo1, calcium, and TNF-α.