Vollkommer, Tobias and Henningsen, Anders and Friedrich, Reinhard E. and Felthaus, Oliver Heinrich and Eder, Fabian and Morsczeck, Christian and Smeets, Ralf and Gehmert, Sebastian and Gosau, Martin (2019) Extent of Inflammation and Foreign Body Reaction to Porous Polyethylene In Vitro and In Vivo. IN VIVO, 33 (2). pp. 337-347. ISSN 0258-851X, 1791-7549
Full text not available from this repository. (Request a copy)Abstract
Background/Aim: High-density porous polyethylene (PP) offers possibilities for reconstruction in craniofacial surgery. The purpose of this study was to evaluate the extent of inflammation and foreign body reactions to PP in vitro and in vivo. Materials and Methods: Cell attachment, proliferation and expression of inflammatory cytokines were assessed using murine macrophages (RAW 264.7) on two different PP materials in vitro. In vivo, Balb/c mice received PP implants at their dorsum. After sacrifice, samples were analyzed histologically and real-time PCR was used to assess expression of inflammatory cytokines. Results: Cells showed a significantly decreased proliferation (p<0.001) after 48 h and a significantly increased expression of TNF-alpha (p<0.05) at 24, 48 and 72 h. All animals showed foreign body cell reactions and signs of chronic inflammation. Expression of all but one of the investigated cytokines dropped to non-significant levels after an initial increase. Conclusion: Application of porous polyethylene can cause local chronic inflammatory reactions. Although clinical application seems to be immunologically safe, indication and risks should be evaluated carefully when using PP implants.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ORBITAL FLOOR; EARLY VASCULARIZATION; NASAL RECONSTRUCTION; IMPLANTS; MEDPOR(R); AUGMENTATION; BIOMATERIALS; OUTCOMES; DEFECTS; PROLIFERATION; Polyethylenes; foreign-body reaction; macrophages; cytokines; biomaterials |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Mund-, Kiefer- und Gesichtschirurgie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Apr 2020 11:32 |
| Last Modified: | 16 Apr 2020 11:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27492 |
Actions (login required)
 |
View Item |
