The aim of this study, in rabbit tibia, was an evaluation of the early reactions of the tissues to the insertion of polylactic membranes, used in connection with titanium implants. The specimens were retrieved after 1-4 weeks, and a histological analysis was performed. It was possible to see that, in the early implantation phases, no degradation of the macrostructure of the membrane was present. On the outer portion of the membrane many multinucleated giant cells (MGC) were present and membrane fragments were present inside the cytoplasm of these cells. These cells could explain the inflammatory processes reported, in some reports, with the use of materials made by polylactic and polyglycolic acid. We did not observe detrimental effects in the bone tissue around the membrane, and the membrane appeared to have a mechanical stability for the time necessary for bone regeneration.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0142-9612(97)00173-7 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Single-Injection Composite Tracer Achieves Intraoperative Dual-Tracing and Precise Localization of Sentinel Lymph Nodes.
ACS Appl Mater Interfaces
January 2025
Sixth People's Hospital, School of Medicine & School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, P. R. China.
The use of dual-tracer contrast agents in clinical applications, such as sentinel lymph node (SLN) identification, offers significant advantages including enhanced accuracy, sensitivity, as well as comprehensive and multimodal visualization. In the current clinical practice, SLNs are typically marked prior to surgical resection by multiple and sequential injections of two tracers, the radioactive tracer and methylene blue (MB) dye. This imposes physical and psychological burden on patients and medical staff.
View Article and Find Full Text PDFCan a combination of nanofat and freeze-dried human amniotic membrane enhance full-thickness wound healing? An animal study using rabbit models.
Narra J
December 2024
Department of Plastic Reconstructive and Aesthetic Surgery, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.
Previous studies have explored nanofat stimulating tissue regeneration and maturation, promoting remodeling through its rich content of growth factors and stem cells; however, comprehensive data on its use in full-thickness wounds remains limited. The aim of this study was to evaluate the effectiveness of combining nanofat with freeze-dried human amniotic membrane (FDHAM) for treating full-thickness wounds in a rabbit model. An animal experimental study using a post-test control group design was conducted.
View Article and Find Full Text PDFBone and Nerve Response to Sciatic Compression Neuropathy in a Rabbit Model.
J Orthop Res
January 2025
Department of Orthopaedic Surgery, Montefiore Einstein, Bronx, New York, USA.
Compression neuropathy is a prevalent medical condition, including common types such as carpal tunnel syndrome, cubital tunnel syndrome, sciatica, and many others. While the neurological consequences are well understood, the effects on bone properties and the potential downstream impact on fracture risk remain less clear. This study aimed to assess the influence of compressive neuropathy on bone properties using a rabbit model of sciatic nerve compression.
View Article and Find Full Text PDFThe first complete mitochondrial genome of Sumatran striped rabbit Nesolagus netscheri (Schlegel, 1880), and its phylogenetic relationship with other Leporidae.
Sci Rep
January 2025
Department of Biology, Faculty of Mathematics and Natural Science, University of Sriwijaya, Jalan Raya Prabumulih Km 32, Ogan Ilir, South Sumatera, 30682, Indonesia.
Nesolagus netscheri, a Sumatran striped rabbit, is one of the rarest rabbits in the Leporidae family, and its genetic information is still limited. This study provides the first mitochondrial genome and molecular systematic characterization of the Sumatran striped rabbit, Nesolagus netscheri, Indonesia's rarest rabbit. It consists of a circular double-stranded DNA of 16,709 bp.
View Article and Find Full Text PDFInverse dose protraction effects of low-LET radiation: evidence and significance.
Mutat Res Rev Mutat Res
January 2025
Radiation Epidemiology Branch, National Cancer Institute, MD 20892-9778, USA; Faculty of Health, Science and Technology, Oxford Brookes University, Headington Campus, OX3 0BP, UK.
Biological effects of ionizing radiation vary not merely with total dose but also with temporal dose distribution. Sparing dose protraction effects, in which dose protraction reduces effects of radiation have widely been accepted and generally assumed in radiation protection, particularly for stochastic effects (e.g.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!