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Different types of sun exposure can damage skin cells and affect healing, with chronic exposure being more harmful, and certain immune cells help in the repair process.

The research reveals how early embryonic mouse skin develops from simple to complex structures, identifying various cell types and their roles in this process.

Fibroblasts are crucial for tissue repair and inflammation, and understanding them can help treat fibrotic diseases.

Hairless HRS/J mice resist Bacillus anthracis skin infections due to high numbers of immune cells, not because they lack hair follicles.

Reflectance confocal microscopy helped tell periorificial dermatitis apart from similar skin conditions.

A specific group of slow-growing stem cells marked by Thy1 is crucial for skin maintenance and healing in mice.

Skin and its underlying fat layer act together to resist mechanical stress, and reinforcing this composite structure may help more with anti-aging than just strengthening the skin alone.

Engineered skin substitutes can grow hair but have limitations like missing sebaceous glands and hair not breaking through the skin naturally.

Researchers created better skin-application menthol capsules that are stable, safe, and penetrate the skin quickly.

Regulatory T cells help heal skin and grow hair, and their absence can lead to healing issues and hair loss.

Skin aging is largely due to differences in stiffness and elasticity between skin layers, leading to wrinkles.

Ethosomal carriers effectively deliver hair loss drug into skin.

The conclusion is that CD90 is not a specific marker for fibroblast subtypes and better methods are needed to identify them.

Hair follicles are valuable for regenerative medicine and wound healing.

Researchers developed a nanomedicine for acne treatment that delivers medication with less irritation and is non-irritating for oily skin.

Nanoparticles can enter the skin, potentially causing toxicity, especially in damaged skin.

Nanocarriers can improve antioxidant delivery to the skin but face safety and production challenges.

Pig ear skin is better than human skin for testing how well barrier creams block allergens from entering hair follicles.

Ethosomes improve finasteride delivery through skin for hair loss treatment.

PEVs effectively deliver minoxidil through skin.

New physical methods like electrical currents, ultrasound, and microneedles show promise for improving drug delivery through the skin.

Nanocarriers could improve how drugs are delivered through the skin but require more research to overcome challenges and ensure safety.

PEVs improve minoxidil skin penetration, increasing hair growth.

The PP2A-B55α protein is essential for brain and skin development in embryos.

Dutasteride-loaded nanoparticles coated with Lauric Acid-Chitosan show promise for treating hair loss due to their controlled release, low toxicity, and potential to stimulate hair growth.

Nanoparticulate systems improve drug delivery by controlling release, protecting drugs, changing absorption and distribution, and concentrating drugs in targeted areas.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Some patients with mycosis fungoides or Sézary syndrome experience hair loss, which may be similar to alopecia areata or linked to skin lesions, possibly due to abnormal T cells, and bexarotene can help treat it.

A new staining method shows a special area in the hair's skin layer with lots of proteoglycans.

Ion-paired risedronate significantly increases skin penetration without irritation compared to risedronate alone.