ArticleFrontiers in cardiovascular medicine2023
Periadventitial β-aminopropionitrile-loaded nanofibers reduce fibrosis and improve arteriovenous fistula remodeling in rats.
Article in Frontiers in cardiovascular medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- Nano-based perivascular intervention sustains a nine-month long-term suppression of intimal hyperplasia in vein grafts.Bioactive materials · 2025Article
- Promising Adventitia in Atherosclerosis.Current vascular pharmacology · 2025Review
- Perivascular adipose tissue: a central player in the triad of diabetes, obesity, and cardiovascular health.Cardiovascular diabetology · 2024Review
- Impact of Perivascular Adipose Tissue on Neointimal Formation Following Endovascular Placement.Journal of cardiovascular translational research · 2024Review
- Regulation of vascular remodeling by immune microenvironment after the establishment of autologous arteriovenous fistula in ESRD patients.Frontiers in immunology · 2024Review
- Building a Scaffold for Arteriovenous Fistula Maturation: Unravelling the Role of the Extracellular Matrix.International journal of molecular sciences · 2023Review
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
Background: Arteriovenous fistula (AVF) postoperative stenosis is a persistent healthcare problem for hemodialysis patients. We have previously demonstrated that fibrotic remodeling contributes to AVF non-maturation and lysyl oxidase (LOX) is upregulated in failed AVFs compared to matured. Herein, we developed a nanofiber scaffold for the periadventitial delivery of β-aminopropionitrile (BAPN) to determine whether unidirectional periadventitial LOX inhibition is a suitable strategy to promote adaptive AVF remodeling in a rat model of AVF remodeling. Methods: Bilayer poly (lactic acid) ([PLA)-]- poly (lactic-co-glycolic acid) ([PLGA)] scaffolds were fabricated with using a two-step electrospinning process to confer directionality. BAPN-loaded and vehicle control scaffolds were wrapped around the venous limb of a rat femoral-epigastric AVF during surgery. AVF patency and lumen diameter were followed monitored using Doppler ultrasound surveillance and flow was measured before euthanasia. AVFs were harvested after 21 days for histomorphometry and immunohistochemistry. AVF compliance was measured using pressure myography. RNA from AVF veins was sequenced to analyze changes in gene expression due to LOX inhibition. Results: Bilayer periadventitial nanofiber scaffolds extended BAPN release compared to the monolayer design ( Conclusion: Periadventitial BAPN treatment reduces fibrosis and promotes AVF compliance. Interestingly, the inhibition of LOX leads to increased accumulation of contractile VSMC while reducing myofibroblast-like cells. Periadventitial LOX inhibition alters the matrisome to improve AVF vascular remodeling.
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