31 October 2017 : Animal Research
Repair of Osteochondral Defects in a Rabbit Model Using Bilayer Poly(Lactide-co-Glycolide) Scaffolds Loaded with Autologous Platelet-Rich Plasma
Yong-tao Zhang12ACE, Jing Niu3B, Zhao Wang4CDF, Song Liu5BC, Jianqun Wu1DF, Bin Yu1AEDOI: 10.12659/MSM.904082
Med Sci Monit 2017; 23:5189-5201
Abstract
BACKGROUND: To examine the effects of the addition of autologous platelet-rich plasma (PRP) into bilayer poly(lactide-co-glycolide) (PLGA) scaffolds on the reconstruction of osteochondral defects in a rabbit model.
MATERIAL AND METHODS: Porous PLGA scaffolds were prepared in a bilayered manner to reflect the structure of chondral and subchondral bone. Bone defects, measuring 4 mm in diameter and 4 mm in thickness, were created in both knee joints in 18 healthy New Zealand white rabbits, aged between 120–180 days old. Rabbits were randomly divided into three groups: rabbits with bone defects implanted with bilayer PLGA scaffolds (PLGA group) (N=6); or with bilayer PLGA and autologous PRP (PLGA/PRP group) (N=6); and the untreated group (control group) (N=6). The gross morphology, histology, and immunohistochemistry for the expression of collagen type II and aggrecan were observed at 12 weeks after surgery and compared using a scoring system. Micro-computed tomography (CT) imaging and relative expression of specific genes were also assessed.
RESULTS: The platelet concentrations in the PRP samples were found to be 4.9 times greater than that of whole blood samples. The total score on gross appearance and histology was greatest in the PLGA/PRP group, as was the expression of collagen II and aggrecan of the neo-tissue. Micro-CT imaging showed that more subchondral bone was formed in the PLGA/PRP group.
CONCLUSIONS: Bilayer PLGA scaffolds loaded with autologous PRP improve the reconstruction of osteochondral defects in the rabbit model.
Keywords: osteochondrosis, Platelet Activation, Polymethacrylic Acids, Tissue Scaffolds
Editorial
01 February 2025 : Editorial
Editorial: Current Approaches to Screening for Lung Cancer in Smokers and Non-SmokersDOI: 10.12659/MSM.948255
Med Sci Monit 2025; 31:e948255
In Press
Clinical Research
Impact of Osteopathic Techniques on Autonomic Regulation: A Study of Heart Rate Variability in Healthy AdultsMed Sci Monit In Press; DOI: 10.12659/MSM.946903
Clinical Research
Immune Dysregulation in Acute Herpes Zoster: Predictive Factors for Postherpetic NeuralgiaMed Sci Monit In Press; DOI: 10.12659/MSM.944688
Clinical Research
Inflammatory Biomarkers from Blood Counts as Prognostic Tools in Metastatic Esophageal CancerMed Sci Monit In Press; DOI: 10.12659/MSM.947202
Laboratory Research
Comparison of Color Stability Between Single-Shade and Conventional Composite Resins Following Immersion in...Med Sci Monit In Press; DOI: 10.12659/MSM.946784
Most Viewed Current Articles
17 Jan 2024 : Review article 6,966,841
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
16 May 2023 : Clinical Research 701,694
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Mar 2024 : Editorial 25,087
Editorial: First Regulatory Approvals for CRISPR-Cas9 Therapeutic Gene Editing for Sickle Cell Disease and ...DOI :10.12659/MSM.944204
Med Sci Monit 2024; 30:e944204
28 Jan 2024 : Review article 19,746
A Review of IgA Vasculitis (Henoch-Schönlein Purpura) Past, Present, and FutureDOI :10.12659/MSM.943912
Med Sci Monit 2024; 30:e943912