ABSTRACT
Objective:To investigate the mechanism of joint cavity injection of Dioscoreae Rhizoma polysaccharides （DRP） in protecting against cartilage degeneration and inhibiting the expression of inflammatory factors in the rabbit model of knee osteoarthritis to provide relevant references for the development and further research on DRP. Method:Fifty-five New Zealand white rabbits were selected for the induction of knee osteoarthritis model by the modified Hulth's modeling method. The model rabbits were randomly divided into a model group， a sodium hyaluronate group （1.00 mg·kg<sup>-1</sup>）， and low- （0.7 mg·kg<sup>-1</sup>）， medium- （1.43 mg·kg<sup>-1</sup>）， and high-dose （2.15 mg·kg<sup>-1</sup>） DRP group according to a random number table. One week after modeling， the rabbits in the groups with drug intervention were treated correspondingly for five weeks， once per week， and no intervention was performed in the model group. Five weeks later， the joint specimens were observed by visual observation. The articular cartilage tissues were observed under the light microscope for pathological sections and scores by hematoxylin-eosin （HE） staining and toluidine blue （TB） staining. The expression levels of interleukin-6 （IL-6）， interleukin-1<italic>β</italic> （IL-1<italic>β</italic>）， and tumor necrosis factor-<italic>α </italic>（TNF-<italic>α</italic>） in the synovial fluid were measured by enzyme-linked immunosorbent assay （ELISA）， and the expression of matrix metalloproteinase-13 （MMP-13）， transforming growth factor-<italic>β</italic><sub>1</sub> （TGF-<italic>β</italic><sub>1</sub>）， and type Ⅱ collagen （Col-Ⅱ） in the articular cartilage were measured by immunohistochemistry. Result:After five weeks of DRP intervention， compared with the model group， the DRP groups exhibited lowered levels of IL-6， IL-1<italic>β</italic>， and TNF-<italic>α</italic> in the synovial fluid （<italic>P</italic><0.05）， reduced expression of MMP-13 in the articular cartilage （<italic>P</italic><0.05）， and increased levels of TGF-<italic>β</italic><sub>1 </sub>and Col-Ⅱ （<italic>P</italic><0.05）. Compared with the low-dose and high-dose DRP groups， the medium-dose DRP group showed reduced levels of IL-6， IL-1<italic>β</italic>， and TNF-<italic>α</italic> in the knee joint （<italic>P</italic><0.05）， increased levels of TGF-<italic>β</italic><sub>1</sub> and Col-Ⅱ in cartilage tissues （<italic>P</italic><0.05）， and dwindled level of MMP-13 （<italic>P</italic><0.05）. Compared with the sodium hyaluronate group， the medium-dose DRP group showed no significant differences in IL-6， IL-1<italic>β</italic>， and TNF-<italic>α</italic> in rabbit knee joints， and TGF-<italic>β</italic><sub>1</sub>， Col-Ⅱ， and MMP-13 in cartilage tissues. Conclusion:Joint cavity injection of DRP can significantly reduce the expression of IL-6， IL-1<italic>β</italic>， and TNF-<italic>α</italic> in rabbit synovial fluid， effectively inhibit the expression of MMP-13 in the articular cartilage to suppress the degradation of articular cartilage collagen and promote the synthesis of TGF-<italic>β</italic><sub>1</sub> and Col-Ⅱ. Therefore， DRP can protect and repair articular cartilage to delay the degeneration of articular cartilage.
ABSTRACT
Objective To observe and analyze the clinical effects of joint injection therapy, ultrashort wave physical therapy and oral medication on temporomandibular joint osteoarthritis. Methods From September 2014 to September 2016 in Huanggang central hospital of Hubei province, 120 patients with osteoarthritis of the temporomandibular joint were divided into 3 groups according to the different treatment methods, 40 cases in each group. The injection group were treated with a joint cavity injection, The ultrashort wave group were given ultrashort wave physiotherapy, and the drug group were given oral medication. The effects and the temporomandibular joint function (DI) values were compared in the 3 groups at 1, 3 and 6 months after treatment. Results 1 months after treatment, the total effective rate in the injection group was 92.50%, 90%in the ultrashort wave group, and 72.50% in the drug group. The total effective rate in the injection group and the ultrashort wave group were better than that in the drug group (P<0.05); 3 and 6 months after treatment, the total effective rate was 90% and 95% in the injection group, which were better than those in the other 2 groups (P<0.05); DI value in the injection group was (0.17 ±0.04), (0.18±0.03), which were significantly better than the other 2 groups (P<0.05). Conclusion The effect is better which joint cavity injection was used in the treatment of temporomandibular joint osteoarthritis. It has good stability and is worthy of further popularization and application
ABSTRACT
Objective To investigate the clinical efficacy of a needle knife in treating knee meniscus injury. Methods One hundred patients with knee meniscus injury (112 knee joints) were randomly allocated to treatment and control groups, 50 cases each. The treatment group received needle knife therapy and the control group, an injection of sodium hyaluronate injectio into knee joint cavity. The main clinical symptoms and signs around the knee joint were observed and the knee function score was recorded in the two groups before and after treatment. the clinical therapeutic effects were evaluated in the two groups. Results There were statistically significant differences in pre-/post-treatment main clinical symptom and sign index (pain score, swelling score, activity score and tenderness index score) difference values between the two groups (P<0.05). There were statistically significant differences in the main clinical symptom and sign index difference values at follow-up compared with before treatment between the two groups (P<0.05). There was a statistically significant differences in the knee function score after treatment and at follow-up compared with before treatment in the two groups (P<0.01,P<0.05). There was a statistically significant differences in the knee function score between the treatment and control groups after treatment and at follow-up (P<0.05). Post-treatment excellence rate and total efficacy rate were 94.0%and 100.0%, respectively, in the treatment group and 72.0%and 98.0%, respectively, in the control group. There was a statistically significant differences in post-treatment excellence rate between the two groups (P<0.05). Follow-up excellence rate and total efficacy rate were 96.0% and 100.0%, respectively, in the treatment group and 76.0% and 98.0%, respectively, in the control group. There was a statistically significant differences in follow-up excellence rate between the two groups (P<0.05). Conclusion Needle knife therapy is an effective way to treat knee meniscus injury.