Transdermal hydrogen therapy for psoriasis using cavity-embedded double-conical microneedles.

Area of Science:

• Dermatology
• Biomedical Engineering
• Materials Science

Background:

• Psoriasis is a chronic inflammatory skin condition with complex causes, currently lacking a definitive cure.
• Existing topical treatments for psoriasis have limitations in skin penetration and can cause adverse effects.
• The interplay between oxidative stress and inflammation is a key factor in psoriasis development.

Purpose of the Study:

• To develop and evaluate a novel transdermal hydrogen therapy for psoriasis.
• To investigate the potential of microneedle technology for delivering molecular hydrogen into the skin.
• To assess the efficacy of this new therapy compared to standard treatments.

Main Methods:

• Design of a double-conical microneedle for efficient delivery of magnesium hydride (MgH2) powder.
• Development of a transdermal system for sustained release of molecular hydrogen within skin tissue.
• Comparative study of the transdermal hydrogen therapy against calcipotriol cream in a psoriasis model.

Main Results:

• The transdermal hydrogen therapy significantly reduced oxidative damage and pro-inflammatory cytokine expression.
• Microneedle treatment effectively decreased immune cell infiltration and keratinocyte hyperproliferation.
• The novel therapy demonstrated superior clinical outcomes compared to calcipotriol cream, alleviating systemic symptoms.

Conclusions:

• Transdermal hydrogen therapy using microneedles is a promising, minimally invasive treatment for psoriasis.
• This approach effectively targets the core mechanisms of psoriasis, including oxidative stress and inflammation.
• Microneedle-based transdermal delivery represents a new strategy for treating inflammatory skin diseases.