| First Author | Waung JA | Year | 2014 |
| Journal | Osteoarthritis Cartilage | Volume | 22 |
| Issue | 10 | Pages | 1396-400 |
| PubMed ID | 24792211 | Mgi Jnum | J:238825 |
| Mgi Id | MGI:5824199 | Doi | 10.1016/j.joca.2014.04.015 |
| Citation | Waung JA, et al. (2014) Quantitative X-ray microradiography for high-throughput phenotyping of osteoarthritis in mice. Osteoarthritis Cartilage 22(10):1396-400 |
| abstractText | OBJECTIVE: To investigate and validate digital X-ray microradiography as a novel, high-throughput and cost-effective screening approach to identify abnormal joint phenotypes in mice. METHOD: Digital X-ray microradiography was used to quantify the subchondral bone mineral content (BMC) in the medial tibial plateau. Accuracy and reproducibility of the method were determined in 22 samples from C57BL/6(B6Brd;B6Dnk;B6N-Tyr(c-Brd)) wild-type mice. The method was then validated in wild-type mice that had undergone surgical destabilisation of medial meniscus (DMM) and in a genetically modified mouse strain with an established increase in trabecular bone mass. RESULTS: The measurement of subchondral BMC by digital X-ray microradiography had a coefficient of variation of 3.6%. Digital X-ray microradiography was able to demonstrate significantly increased subchondral BMC in the medial tibial plateau of male mice 4 and 8 weeks after DMM surgery and in female mice 8 weeks after surgery. Furthermore, digital X-ray microradiography also detected the increase in subchondral BMC in a genetically modified mouse strain with high trabecular bone mass. CONCLUSION: Quantitation of subchondral BMC by digital X-ray microradiography is a rapid, sensitive and cost-effective method to identify abnormal joint phenotypes in mice of both genders at several ages. |
