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2.
J Mater Chem B ; 10(20): 3781-3792, 2022 05 25.
Artículo en Inglés | MEDLINE | ID: mdl-35537197

RESUMEN

Cardiovascular diseases have become one of the leading causes of mortality worldwide. Stents and artificial grafts have been used to treat cardiovascular diseases. Thrombosis and restenosis seriously impact the clinical outcome of stents and artificial vascular grafts. For the purpose of antithrombosis and anti-restenosis, numerous strategies have been developed to construct highly hemocompatible surfaces, enhance endothelialization, and inhibit intimal hyperplasia. Rapid endothelialization and inhibited intimal hyperplasia play an important role in artery repair after stent implantation and coronary artery bypass graft surgery. This review focuses on the recently developed strategies for improving the hemocompatibility and endothelialization of cardiovascular devices. We also introduce drug, gene and RNA delivery technologies for inhibiting intimal hyperplasia. The challenges and future perspectives about promoting endothelialization are also briefly discussed with the hope to help inspire further innovations.


Asunto(s)
Enfermedades Cardiovasculares , Sistema Cardiovascular , Prótesis Vascular , Humanos , Hiperplasia , Stents
3.
Biomolecules ; 11(5)2021 05 08.
Artículo en Inglés | MEDLINE | ID: mdl-34066859

RESUMEN

Diabetic foot wound healing is a major clinical problem due to impaired angiogenesis and bacterial infection. Therefore, an effective regenerative dressing is desiderated with the function of promoting revascularization and anti-bacteria. Herein, a multifunctional injectable composite hydrogel was prepared by incorporation of the cerium-containing bioactive glass (Ce-BG) into Gelatin methacryloyl (GelMA) hydrogel. The Ce-BG was synthesized by combining sol-gel method with template method, which maintained spherical shape, chemical structure and phase constitution of bioactive glass (BG). The Ce-BG/GelMA hydrogels had good cytocompatibility, promoted endothelial cells migration and tube formation by releasing Si ion. In vitro antibacterial tests showed that 5 mol % CeO2-containing bioactive glass/GelMA (5/G) composite hydrogel exhibited excellent antibacterial properties. In vivo study demonstrated that the 5/G hydrogel could significantly improve wound healing in diabetic rats by accelerating the formation of granulation tissue, collagen deposition and angiogenesis. All in all, these results indicate that the 5/G hydrogel could enhance diabetic wound healing. Therefore, the development of multifunctional materials with antibacterial and angiogenic functions is of great significance to promote the repair of diabetic wound healing.


Asunto(s)
Antibacterianos/administración & dosificación , Cerio/administración & dosificación , Diabetes Mellitus Experimental/complicaciones , Cicatrización de Heridas/efectos de los fármacos , Animales , Antibacterianos/química , Antibacterianos/farmacología , Línea Celular , Movimiento Celular/efectos de los fármacos , Cerio/química , Cerio/farmacología , Colágeno/metabolismo , Diabetes Mellitus Experimental/metabolismo , Gelatina/química , Células Endoteliales de la Vena Umbilical Humana , Humanos , Hidrogeles , Nanopartículas del Metal , Metacrilatos/química , Ratones , Ratas , Estreptozocina/efectos adversos
4.
Cancer Manag Res ; 10: 361-369, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29503583

RESUMEN

OBJECTIVES: Surgical resection remains a controversial treatment for hepatocellular carcinoma (HCC) within different Barcelona Clinic Liver Cancer (BCLC) stages. The objective of this study was to evaluate the long-term outcome of patients undergoing surgical resection (SR) compared to non-surgical treatments across different BCLC stages. PATIENTS AND METHODS: One thousand four hundred forty-three HCC patients within BCLC 0, A, B and C stages were identified. Overall survival was compared by log-rank test among patients within different BCLC stages and among patients receiving different treatments (SR vs locoregional therapy [LRT] vs best supportive care). Propensity score matching analysis was introduced to mitigate the confounding biases between the groups. RESULTS: The median survival time of the patients diminished from early, intermediate to advanced BCLC stages (BCLC 0-A 43 [range 0-100] months vs BCLC B 32 [range 0-100] months vs BCLC C 27 [range 0-90] months, all p<0.05). Patients undergoing SR presented with better liver function and more favorable tumor status and, consequently, displayed significant better overall survival than patients receiving LRT or best supportive care at different BCLC stages. In adjusted cohort after propensity score matching, patients who were surgically treated consistently had more favorable outcome than those who were non-curatively treated across different BCLC stages (median survival [range]: BCLC stage B: resection 45 [0-100] months vs LRT 36 [0-81] months, p=0.002; BCLC stage C: resection 39 [3-77] months vs LRT 27 [0-54] months, p=0.003). CONCLUSION: Surgical resection should be considered as a radical treatment for selected HCC patients regardless of the BCLC stages when appropriate.

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