Sheep as a Potential Model of Intradiscal Infection by the Bacterium Cutibacterium acnes
| Autor: | Andrew McDowell, Bradley Hostetter, Erin C Coscia, Mohamed N. Seleem, Michael F. Coscia, Robyn R. McCain, Manu N. Capoor, Gert J. Breur, Nader S. Abutaleb, Viju Vijayanpillai, Christa J Crain, Fahad S. Ahmed, Ondrej Slaby, Sanjeev K. Narayanan |
|---|---|
| Přispěvatelé: | Biomedical Sciences and Pathobiology |
| Rok vydání: | 2021 |
| Předmět: |
Degenerative disc
Anaerobic bacterium Microbiology Degenerative disc disease 03 medical and health sciences 0302 clinical medicine sheep model In vivo percutaneous injections Cutibacterium acnes Medicine spinal intervertebral discs Bacterial clearance lcsh:Veterinary medicine General Veterinary biology business.industry Communication biology.organism_classification medicine.disease bacterial discitis 030220 oncology & carcinogenesis lcsh:SF600-1100 business 030217 neurology & neurosurgery Bacteria |
| Zdroj: | Veterinary Sciences Veterinary Sciences, Vol 8, Iss 48, p 48 (2021) |
| ISSN: | 2306-7381 |
| Popis: | The anaerobic bacterium Cutibacterium acnes has been increasingly linked to the development of degenerative disc disease (DDD), although causality is yet to be conclusively proven. To better study how this organism could contribute to the aetiology of DDD, improved animal models that are more reflective of human disc anatomy, biology and mechanical properties are required. Against this background, our proof-of concept study aimed to be the first demonstration that C. acnes could be safely administered percutaneously into sheep intervertebral discs (IVDs) for in vivo study. Following our protocol, two sheep were successfully injected with a strain of C. acnes (8.3 x 10(6) CFU/disc) previously recovered from a human degenerative disc. No adverse reactions were noted, and at one-month post inoculation all triplicate infected discs in our first animal grew C. acnes, albeit at a reduced load (5.12 x 10(4) to 6.67 x 10(4) CFU/disc). At six months, no growth was detected in discs from our second animal indicating bacterial clearance. This pilot study has demonstrated the feasibility of safe percutaneous injection of C. acnes into sheep IVDs under fluoroscopic guidance. The design of follow-up sheep studies to investigate the potential of C. acnes to drive pathological changes within infected discs should now be pursued. Indiana Orthopaedic Hospital Research Foundation This research was funded by a grant from the Indiana Orthopaedic Hospital Research Foundation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|