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This study explored recent advancements in 3D bioprinting for head and neck defects, highlighting how bioinks and scaffolds may improve treatment customization and functionality by mimicking native tissue features. The research also examined challenges like biocompatibility and regulatory requirements on the path to clinical use.

This study found that using a recombinant adenoassociated virus to induce survivin expression protected normal tissues from radiation damage in mice, reducing side effects compared to controls.

This study found that an acellular dermal matrix derived from tilapia skin significantly accelerated wound healing and improved tissue regeneration quality in mouse and pig models compared to a commercial porcine-derived matrix, suggesting its potential as a safe, cost-effective bioscaffold for skin repair.

This review explores how combining extracellular vesicles with hydrogels and utilizing 3D bioprinting technologies creates innovative composite systems for wound healing, offering advanced mechanical and biological support, while addressing challenges like degradation and regulatory issues in clinical applications.

This study suggests that bio-nanovesicles, such as exosomes and microvesicles, may enhance skin and hair follicle regeneration by modulating key signaling pathways, potentially overcoming the limitations of conventional treatments for alopecia and chronic skin diseases.

This paper reviews advancements in 3D human skin models using bioprinting, organoid, and organ-on-a-chip technologies, noting improvements in physiological realism through vascularization and multi-omics data, but also highlighting challenges such as cost and lack of standardization that hinder clinical adoption.

This study highlights IGF-1's role in promoting hair follicle proliferation, vascularization, and growth, suggesting its potential as a treatment target for hair loss disorders like androgenetic alopecia, though more research on delivery methods and long-term effects is needed.

In this study, researchers used two dermal papilla spheroid models to investigate hair cycle regression mechanisms and found that the vascular system enhances tissue physiology and gene modulation, while Retinol-based treatments can partially recover tissue degeneration observed over an extended culture period.

This review discusses the use of adipose tissue and platelet-rich plasma in tissue repair and regeneration, noting their promise in surgical outcomes but emphasizing the need for further research to optimize therapies.

This study reported that in animal studies of androgenetic alopecia, a biodegradable microneedle patch releasing glutamic acid promoted hair regeneration more effectively than daily minoxidil, with higher hair follicle counts and less frequent dosing, showing the potential for clinical application.

This study found that a microneedle patch with recombinant collagen XVII significantly improved hair coverage, follicle density, and angiogenesis in an androgenic alopecia mouse model, showing potential as a novel therapeutic strategy alongside established treatments like minoxidil.

This study reports that a new minoxidil and epigallocatechin gallate co-loaded ionic liquids system showed superior efficacy in promoting hair regrowth in a mouse model of androgenic alopecia by activating hair follicle stem cells and improving microenvironment conditions, compared to existing minoxidil products.

In this review, it is discussed how mesenchymal stem cell aggregation plays a crucial role in organ development and has potential applications in organ regeneration through tissue engineering.

This study found that although three-dimensional bioprinting in plastic and reconstructive surgery is rapidly advancing, complete tissue systems have not yet been successfully printed due to ongoing challenges.

This study found that perifollicular vascularization around the dermal papilla adjusts dynamically to physiological changes, with minoxidil enhancing vessel mobilization and aging processes inhibiting it, highlighting potential targets for treating hair loss and skin aging.

This study highlighted the potential of iron chelators, deferoxamine and deferiprone, to improve hair density, thickness, and elasticity and reduce hair loss by up to 66.8% over six months in individuals with autoimmune alopecia, suggesting they may offer a promising therapeutic option.

This study found that IGF-1 injections increased hair follicle number and growth phase duration in wild-type mice, suggesting potential for baldness treatment.

This study found that aminoguanidine induced increased VEGF mRNA expression in stored hair follicle micrografts, suggesting potential for developing growth-promoting storage solutions in hair restoration surgery.

This study observed that Althaea officinalis gel increased fibroblast populations, hair follicles, and vessel diameter in rat wounds, suggesting it might aid wound healing, though further clinical studies are needed.

This study found that low oxygen conditions and ECM degradation products increased the proliferation and migration of perivascular stem cells without altering their phenotype, suggesting potential roles in tissue repair.

This study found that hair thickness and density increased after treatment with human follicle mesenchymal stem cells and platelet rich plasma, associated with enhanced Wnt signaling and platelet derived growth factors.

This article proposes a mechanistic model for how platelet-rich plasma therapy may stimulate hair growth in androgenetic alopecia by promoting vascularization and activating specific signaling pathways, but it reports no new experimental results.

This study demonstrated that a mechanical-assisted post-bioprinting strategy significantly increased cell numbers and enhanced regenerative capabilities in hollow hydrogel-based scaffolds for bone defect repair in vivo.

In this study, PRP increased hair density in areas treated for androgenetic alopecia, but there was no significant difference when compared to placebo-treated areas.

This study found that topically delivering KGF-1 DNA plasmid increased epithelial thickness and skin strength, suggesting potential benefits for strengthening compromised skin.

This study found that platelet-rich plasma significantly increased hair diameter in both men and women with androgenetic alopecia but improved hair density only in men.

In this exploratory study, researchers found slightly increased levels of inflammatory markers in scalp skin affected by androgenetic alopecia, suggesting differential gene expression involved in hair cycle and keratin production.

This study found that prolonged topical application of minoxidil significantly increased skin flap survival in rats by promoting angiogenesis compared to shorter application or a saline control.

This study found that hidradenitis suppurativa is associated with increased serum levels of hypoxia-inducible factor-1α, suggesting its role in the disease's pathogenesis and as a treatment target.

In this study, oral minoxidil treatment significantly increased serum VEGF levels and improved hair growth measures compared to a control group, suggesting its potential as an effective approach for promoting hair regrowth in androgenetic alopecia.