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This study found that 3D-printed polyamine-modified hydrogels facilitate M2 macrophage polarization and exosome secretion, enhancing skin cell compatibility and promoting wound healing and hair follicle induction in an animal model through specific signaling pathways, suggesting potential for skin disorder therapies.

This study explored a keratin, sodium alginate, and carboxymethyl chitosan hydrogel modified with tannic acid and found it to have promising wound-healing qualities, including similar elasticity to human skin, antimicrobial and antioxidant properties, and effective water retention. These attributes suggest potential applications in biomedical engineering.

This review assesses the benefits and limitations of various supramolecular hydrogels, including polymeric and peptide-based types, for wound healing, but reports no new clinical results.

This article reviews the role of polyamines in hair follicle growth and discusses potential therapeutic applications but provides no new clinical results.

This study found that polyamine levels in hair samples differ between androgenic alopecia and alopecia areata, suggesting potential non-invasive biomarkers to distinguish between these hair loss conditions.