Objective To discuss the curative effect between percutaneous vertebroplasty ( PVP) and percu-taneous kyphoplasty ( PKP) to treat osteoporotic vertebral compression fractures .Methods 70 cases with osteoporotic vertebral compression fractures were selected and divided into the observation group and control group at random ,who were treated with PKP and PVP respectively .Postoperative vertebral compression rate ,Cobb's angle recovery,relief of pain and occurrence rate of untoward effect of patients in the two groups were observed and compared .Results The vertebral compression rate and Cobb's angle recovery of patients in the two groups one month after the operation were improved than before(t=2.39,2.21,3.52,2.89,all P<0.05),and the improvement rate in the observation group was much higher than that in the control group (t=2.34,2.14,all P<0.05).The relief of pain of patients in the two groups was greatly improved than before (t=3.91,3.84,all P<0.01).After comparing the improvement rates of relief of pain,no obvious statistical differences appeared (t=0.21,P>0.05).The postoperative complication occur-rence rate of patients in the observation group was much lower than that in control group (χ2 =4.20,P<0.05). Conclusion The application of PVP and PKP can obviously relieve the pain of patients with osteoporotic vertebral compression fractures ,but PKP treatment is more favorable for the recovery of vertebral height and Cobb 's angle with little negative effect and high security .

Objective:To determine whether p53 protein overexpression correlated with early tumor recurrence in carcinoma of maxillary sinus.Method:Forty-five patients with T2NoMo squamous cell carcinoma of maxillary sinus were treated with operation and/or radiotherapy . The median follow up time was 3 years. The ratio of local control was 62.2% (28 patients) , as control group ; The ratio of local recurrence and/or metastasis was 37.8% (17 patients),as experiment group . Cancer specimens were obtained before treatment.p53 protein overexpression, which indicated a mutated p53 gene ,was analyzed by immunohistochemistry, using the mouse monoclonal antibody DO-7.Result:Approximately 88.2% of the carcinoma that recurred locally overexpressed p53 protein , compared with only 28.6% of those with local control (P<0.01) .No significant relation was noted between p53 protein overexpression and pathohistologic grade .Intensity of staining did not predict tumor recurrece.Conclusion:The study demonstrated that the p53 protein is an important prognostic marker on gene level for maxillary sinus carcinoma.

Objective To evaluated clinical effects and effectiveness of dual-port video-assisted thoracic surgery(VATS)for secondary spontaneous pneumothorax.Methods The clinical data of 48 pa-tients with secondary spontaneous pneumothorax who underwent open thoracotomy(n =18)or dual-port VATS(n =30)were reviewed retrospectively.Mean operation time,mean postoperative drainage period and mean postoperative hospital stay between the two groups were compared.Results All surgeries were suc-cessfully performed without reoperation and severe complications.No patient was converted to thoracotomy in the VATS group.There were significant differences in mean operation time [(67.9 ±7.2)min vs (73.3 ±6.4)min],mean postoperative drainage period [(3.2 ±0.9)d vs(5.0 ±1.3)d],and mean postoperative hospital stay [(7.2 ±1.4)d vs(8.7 ±1.5)d]between the dual-port VATS and open thora-cotomy(P <0.05 ).Conclusion Dual-port video-assisted thoracic surgery can reduce postoperative drainage period and postoperative hospital stay and increase satisfaction.It has little influence on upper limb movement and improves postoperative recovery.

Objective To investigate the therapeutic effects of endovascular management for oculomotor nerve palsy caused by unruptured aneurysm of posterior communicating artery.Methods Endovascular treatment was carried out in 11 patients with oculomotor nerve palsy due to unruptured aneurysm of posterior communicating artery.The choice of the therapeutic opportune moment and the treatment way were retrospectively evaluated.The relationship between the therapeutic results and the treatment time and way was analyzed.Results Of the 11 patients,complete recovery of oculomotor nerve palsy was obtained in 10(90.91%) and partial recovery in one(9.09%).Conclusion Oculomotor nerve palsy cause by unruptured aneurysm of posterior communicating artery can be effectively treated by endovascular management,and the recovery of oculomotor nerve function depends on the time to take treatment and the degree of nerve palsy.

AIM: To investigate the effects of Chlamydia pneumoniae infection and hyperlipidemia on the expression of NF-?B and AP-1 in the myocardium. METHODS: The indirect immunofluorescence method was used to examine wild C57BL/6J mice infected with Chlamydia pneumoniae and fed with an atherogenic diet. The expression of the subunit of NF-?B, P50, and c-Fos in the murine myocardium was observed. RESULTS: Chlamydia pneumoniae infection and hyperlipidemia induced the activation of NF-?B and AP-1 in murine myocardium. P50 and c-Fos were not detected in the controls, but there were different levels of positive expression in the experiments (P

Objective:To investigate the effect of neonatal dog peripheral mononuclear cells on left ventricular function, haemodynamic, and infarcted size when transplanted into infarcted myocardium. Methods: Mononuclear cells from neonatal dogs were isolated and purified. The descending coronary arteries of adult dogs were ligated and the cells were injected into the border zone of the infarcted region. The control group was injected with non serum culture medium. Left ventricular pressure, d p /d t max , and power of LV were measured during and 30 d after operation. Echocardiogram(HP Sonos 5500, 2.5 MHz) were performed promptly and 30 d after operation to determine the changes of left ventricular function. Infarcted size, capillary density and cardiac muscle width were measured 30 d after operation. Results: LV pressure decreased in both groups, there were no marked differences between the 2 groups. LV pressure and d p /d t max of transplant group were greater than those of control group 30 d after operation. The systolic and diastolic functions were preserved after mononuclear cell transplantation. Infarcted sizes were lower and capillary density was greater in transplant group than those of control group. Conclusion: Transplantation of neonatal dog peripheral mononuclear cells into the infarcted regions can increase the capillary density and decrease infarcted size, preserving left ventricular function.

This article was aimed to explore theeffect of Pi-Zhen(PZ) on 5-hydroxytryptamine(5-HT) in nerve end-ings tension painrabbitmodel. Forty-two healthy male big ear whiterabbits of three months old were randomly divided into 5 groups, which were the normal group,model group, drug group, Hao-Zhen (HZ) group, and PZ group. Nerve endings tension pain modelswere established. No operation was made in the normal group. The amount of 1 ml saline was injected to the operative sitebetween the shallow and deep fascia in each rabbit and then draw out at 5, 10, 20, 30, 40, 50, 60 min after operation. The 5-HT level in extracting solution of different groups was determined with ELISA method. The results showed that PZ interventioncan reducethe 5-HT level ofextracting solution in operative site; and with the increasing of time, the level of 5-HT was gradually reduced. Compared with the model group, the contents of 5-HT in the treatment group were significantly decreased at different time points(P<0.01). The content of 5-HT in the PZ group was significantly higher than that of the normal group at 5 min (P<0.01). Compared with the drug group, the contents of 5-HT in the HZ group and PZ group were significantly increased at 5, 10, 20, 30, 40 min (P<0.01). Compared with the normal group, the contents of 5-HT in the PZ group was significantly decreased at 40, 50, 60 min (P<0.05). Compared with the HZ group, the contents of 5-HT were significantly decreased at 20, 30, 40, 50, 60 min (P<0.01). There was no difference at other time points. It was concluded that PZ can ease pain through reducing the tension of local soft tissues, decreasing 5-HT releasing, and promoting its degradation.

Objective To evaluate contrast-enhanced ultrasound (CEUS) for the diagnosis and follow-up of hepatocellular carcinoma ( HCC) patients after percutaneous radiofrequence ablation ( RFA). Methods The data of 46 HCC cases were reviewed in our study. Results of contrast enhanced computed tomography (CT) , ultrasound contrast agent sonography and grey ultrasound were compared with each other pre- and after percutaneous radiofrequence ablation. Results Contrast agent ultrasound imaging had the same value with CT in preoperative diagnosis of HCC, with postive likelihood ratio of 1.26 and 1.31, respectively,sensitivity of 97% and 91% and specificity of 23% and 31% respectively. For grey ultrasound the positive likelihood ratio was 0.99, sensitivity and specificity was 76% and 23% respectively. The sensitivity and specificity of contrast-enhanced ultrasound after percutaneous radiofrequence ablation was 60% and 90% respectively, and the postive likelihood ratio and negative likelihood ratio was 6. 18 and 0. 44 respectively. The difference was significant while compared with CT (P = 0. 012). All cases were followed-up from 1 to 9 months, and all were alive with recurrence found by contrast-enhanced ultrasound in 3 cases. Conclusions Contrast agent ultrasound imaging is sensitive and effective in the diagnosis of HCC and follow-up after percutaneous radiofrequence ablation.

BACKGROUND:Studies have shown that bisphosphonates inhibit osteoclast resorption, but whether cathepsin K, a key cytokine of bone resorption, plays an effect has rarely been reported.
OBJECTIVE:To study the effect of bisphosphonate on capthesin K and bone resorption function during osteoclast differentiation.
METHODS:Osteoclasts were cultured by mouse monocyte-macrophage cellline-RAW264.7. The cells were divided into two groups:control group, treated with 100μg/L receptor activator of nuclear factorκB ligand factor;alendronate group, treated with 100μg/L receptor activator of nuclear factorκB ligand factor+10-7 mol/L alendronate. Osteoclastogenesis and resorption function of osteoclasts were examined at 7 days of culture and gene expression of capthesin K was detected by immunofluorescence method at 72 hours of culture. Western blot assay was used to detect capthesin K protein expression at 72 hours of culture.
RESULTS AND CONCLUSION:Tartrate-resistant acid phosphatase positive multinuclear cells were observed and resorption lacunae formed in two groups. Control group showed the higher number of tartrate-resistant acid phosphatase positive multinuclear cells and larger size of resorption lacunae than the alendronate group (P<0.01). Immunofluorescence showed expression of capthesin K was higher in the control group than the alendronate group (P<0.01);furthermore, the protein expression of capthesin K was also lower in the alendronate group than the control group (P<0.01). These findings indicate that bisphosphonates could strongly inhibit osteoclastogenesis and its resorption function by inhibiting gene expression of capthesin K.

BACKGROUND:Tartrate-resistant acid phosphatase is a specific marker for osteoclast differentiation and bone resorption, which is a sign of osteoclast maturity.
OBJECTIVE:To study the effect of alendronate on tartrate-resistant acid phosphatase related to osteoclast differentiation and bone resorption.
METHODOsteoclasts were cultured by mouse monocyte-macrophage cellline-RAW264.7. The cells were divided into two groupcontrol group, treated with 100μg/L receptor activator of nuclear factorκB ligand factor;alendronate group, treated with 100μg/L receptor activator of nuclear factorκB ligand factor+10-7 mol/L alendronate. Osteoclastogenesis and resorption function of osteoclasts were examined at 7 days of culture. Gene expression of tartrate-resistant acid phosphatase was detected by immunofluorescence method. Western blot assay was used to detect protein expression of tartrate-resistant acid phosphatase.
RESULTS AND CONCLUSION:Tartrate-resistant acid phosphatase positive multinuclear cells were observed and resorption lacunae formed in two groups. Control group showed the higher number of tartrate-resistant acid phosphatase positive multinuclear cells and larger size of resorption lacunae than the alendronate group (P<0.01). Immunofluorescence showed expression of tartrate-resistant acid phosphatase was higher in the control group than the alendronate group (P<0.01);furthermore, the protein expression of tartrate-resistant acid phosphatase was also lower in the alendronate group than the control group (P<0.01). These findings indicate that bisphosphonates could strongly inhibit osteoclastogenesis and its resorption function by inhibiting protein expression of tartrate-resistant acid phosphatase.