Objective To evaluate the clinical application of anterior approach microendoscopic discectomy for cervical spondylosis. Methods Clinical data of 21 cases of cervical spondylosis from October 2001 to June 2002 treated by anterior approach decompression with bone allograft or autograft for cervical fusion by means of microendoscopic discectomy system were reviewed. Results The mean intraoperative blood loss was 150 ml. The drainage was removed 48 hours and the stitches taken out 5 days after the operations. The mean hospital stay was 10 days. All the patients got out of bed for motion wearing a cervical collar 2 days after the operations. Follow-up ranged 6～12 months with a mean of 9 months.The outcome was determined using Odom grading. Of the 21 cases, 16 were classified as excellent results, 4 as good, 1 as poor, the rate of excellent or good results being 95%.Complications were found in 3 cases:rupture of threaded fusion cage in 1 case;hoarseness in 1 case;and multiple infarction of brain stem in 1 case. Conclusions Anterior approach microendoscopic discectomy in the treatment of cervical spondylosis has the advantages of minimal invasion and rapid recovery. It offers a clear surgical vision for vertebral posterior margin and effective protection for blood vessels and nerves, conforming to the standards of minimally invasive surgery.

Objective To study the effect of 60 Co radiotherapy on the gene expession of fibronectin (FN) and matrix metalloproteinase-2 (MMP-2) in the cultured rat vascular smooth muscle cells (VSMCs). Methods Rat VSMCs were cultured in DMEM containing 10% FBS, and were radiated by 60 Co at the doses of 0,7,14 and 28Gy, respectively. mRNA level of FN and MMP-2 was measured by RT-PCR. Results The expression level of MMP-2 mRNA decreased from 82.52?6.50 to 64.25?3.81 and 42.17?3.16 in VSMCs with 14,25Gy radiation, respectively(P

Objective To investigate whether emodin(1,3,8-trihydroxy-6-methylanthraquinone) can attenuate inflammatory response in rats' lungs with acute necrotic pancreatitis (ANP). Method Acute necrotic pancreatitis model was induced by injection of 3% sodium taurocholic acid into the subcapsular of pancreas and emodin was administered by intestine perfusion. Plasma amylase of 3, 6 and 12 h with acute necrotic pancreatitis was measured together with the detection of IL-1β, IL-6 and IL-10 mRNA expressions in rats' lungs by semi-quantitative RT-PCR. Immunohistochemistry was detected the expression of IL-1β converting enzyme (ICE) in the rats' lungs. Result Plasma amylase of 3, 6 and 12 h with acute necrotic pancreatitis groups are obviously high as compared with normal group(P＜0.05). Plasma amylase was (1 611.20±218.72)IU/L in normal group. Plasma amylase of 3, 6 and 12 h with acute necrotic pancreatitis groups were (1 981.40±56.81)IU/L, (3 287.40±612.37)IU/L and (4 914.60±746.82)IU/L. Plasma amylase of 3, 6 and 12 h with acute necrotic pancreatitis after treatment with emodin groups were obviously low as compared with acute necrotic pancreatitis groups. The plasma amylase was(1 617.20±136.80)IU/L,(2 323.40±318.19) IU/L and (2 670.20±390.03)IU/L respectively. The study showed that the mRNA expression of pro-inflammatory cytokin IL-1β and the expression of IL-6, as well as the expression of IL-1β converting enzyme(ICE) were decreased and IL-10 was increased. Conclusion The study demonstrates that emodin plays an important role in reducing plasma amylase level. Emodin exerts anti-inflammatory effects in acute necrotic pancreatitis rats' lungs by downregulating the mRNA expression of IL-1β and IL-6 and upregulating the mRNA expression of IL-10.

Objective To observe the tumorigenicity of High Five insect cell line in Balb/c nude mice,and make sure the safety of the cells when used in vaccine production.Methods Balb/c nude mice were randomly divided into 5 groups:the basic cell bank of High Five group,the highest limited passages of High Five group,HEp-2 cell group as positive control,CEF cell group as negative control,and blank control.Except of the blank control,cell suspension was injected subcutaneously into the nude mice in the different groups,respectively.At 3 and 12 weeks after injection,anatomical observation and histopathologic examination were performed to detect the tumor formation.Results At 3 and 12 weeks after injection,the tumorigenicity study results showed that no tumor developed at the transplantation site in the blank control group,negative group,and High Five groups.Histopathological examinations also showed no abnormality in these groups.Otherwise,squamous cell carcinoma was developed in the positive group at 3 weeks after injection.Conclusions High Five cells of basic cell bank and highest limited passages are not tumorigenic,and can be used in vaccine production safely.

Objective To analyze the risk factors and characteristics of bone metastases in patients with prostate cancer. Methods Patients who were diagnosed as prostate cancer by biopsy and histopathologic analysis between June 2006 and June 2016 were included in this study. The clinical data of the patients were reviewed, and the demographic data, laboratory examination results and Gleason score were recorded. The correlations between clinical factors and bone metastasis were analyzed, and the risk factors of bone metastasis were identified. Results A total of 585 patients were recruited in this study, including 228 with bone metastasis and 357 without bone metastasis. Of the patients with bone metastasis, the incidence of pelvic metastasis was the highest, accounting for 81.58%, followed by spin (63.16%) and rib (58.33%), and the incidence of clavicle metastasis was the lowest (14.47%). Logistic regression analysis showed that age <71.5 years, alkaline phosphotase >85.5U/L, prostate-specific antigen >79.88μg/L and Gleason score >7.5 were the risk factors of bone metastasis in prostate cancer. ROC curve analysis showed that the sensitivity of diagnosing bone metastasis was 56.1%, 66.7%, 68.4% and 56.1%, and the specificity was 56.6%, 81.8%, 70.0% and 65.3%, respectively for above 4 factors. Conclusions The most common site of bone metastasis in patients with prostate cancer is pelvis. Patients' age, concentrations of plasma ALP and PSA, and Gleason score are the risk factors for bone metastasis in patients with prostate cancer.

Objective To observe the effects of glucagon like peptide-1 (GLP-1) analogues liraglutide on expressions of nitric oxide synthase (NOS) and cyclo-oxygen-ase (COX)2 in renal medulla of type 2 diabetes rats, and the mechanism of its lowering blood pressure and promoting excretion of water and salt in kidney. Methods Type 2 diabetes model rats were generated by high-fat and high-sugar feeding for 8 weeks followed by intraperitoneal injection of streptozotocin (STZ). Subse?quently, eighteen type 2 diabetes rats were divided into two groups: liraglutide treatment group (DMT) and diabetes group (DM). Twelve normal rats were divided into two groups: liraglutide treatment wild type group (WTT) and wild type group (WT). DMT and WTT groups were given liraglutide (200μg/kg) by subcutaneous injection, DM and WT groups were given equivalent normal saline by the same way. The levels of blood glucose and blood pressure were detected at 0, 2, 4 and 6 weeks after treatment in groups of rats. Samples of urine were collected for detecting ion concentrations (K+, Na+and Cl-) af?ter treatment for six weeks. Rats were sacrificed and blood samples were collected for detecting ion concentrations (K+, Na+and Cl-). The expression levels of NOS and COX2 mRNA and protein in renal medulla were detected by real-time PCR and Western blot assay. Results After treating with liraglutide, the values of blood glucose (F=5.933, P<0.05) and blood pres?
sure (F=22.070, P<0.05) were gradually decreased in DMT group. After treatment with liraglutide for 6 weeks, the values of blood glucose (mmol/L:12.78 ± 3.82 vs. 18.75 ± 1.68) and blood pressure (mmHg:119.98 ± 4.43 vs. 136.42 ± 4.48) were signifi?cantly decreased (P<0.05) in DMT group than those of DM group (P<0.05). There were no significant differences in the concentrations of K+, Na+and Cl-between the two groups. There were higher levels of K+(mmol/L:46.55 ± 6.43 vs. 33.13 ± 9.71), Na+(mmol/L:56.33±8.83 vs. 41.20±7.25) and Cl-(mmol/L:159.81±25.06 vs. 71.44±12.99) in urine in DMT group than those of DM group (P<0.05). The mRNA levels and protein expressions of NOS and COX2 in renal medulla were significant?ly increased in DMT group than those of DM group (P<0.05). Conclusion GLP-1 analogues liraglutide may enhance the expression of COX2 by increasing the expression of NOS to excrete water and salt, and decrease blood pressure.

Objective To investigate the clinical effect of modified anterior approach to manage fracture of the ulnar coronoid process via the space of brachial artery and vein with median nerve.Methods From June 2012 to January 2013,11 patients with ulnar coronoid fracture were fixed via the modified anterior approach.The operation time,intraoperative blood loss and postoperative complications were recorded.Flexion and rotation range of motion about the injured and normal elbow were observed during postoperative follow-up period.Function of elbow joint was evaluated by mayo elbow performance index (MEPI).Results There was approximate 8 cm in length and 5 cm in width between the brachial vessels and median nerve.Operated angle from radial to ulnar side was fifty degrees and from proximal to distal end was sixty degrees.All the patients were available for follow-up.The fracture healed,that is the elbow flexion restored [(130.7 ±5.0) °] was 96.6％ of the unaffected elbow,elbow extension restored [(7.6 ± 8.1) °] was 84.0％ of the unaffected elbow,pronation restored [(86.9 ± 3.8) °] was 98.2％ of the unaffected side,and supination restored [(85.6 ± 6.0) °] was 96.7％ of the unaffected side.MEPI of the elbow joint was over 75 points.Conclusion Modified anterior approach is relatively safe and simple in operation and results in satisfactory function recovery of the elbow joint,providing a new surgical approach for treatment of coronoid process fracture.

Objective To investigate the changes of surfactant associated protein A (ST-A) concentration inBALF and its relatiomhips with pulmonary injury after blast injury and blast injury combined with hypoxia. MethodTotally 131 Wistar rats (purchased from animal center of research Institute of Surgery, Daping Hospital, ThirdMilitary Medical University) were randomly divided into four groups: blast injury group ( BI group), blast injurycombined with hypoxia group Ⅰ (BAg Ⅰ group), blast injury combined with hypoxia group Ⅱ (BA Ⅱ group) andnormal control group. After blast injury was made by KST - Ⅰ bio-shock tube, rats of BA Ⅰ and BA Ⅱ groups wereput into hypoxia cabins immediately, where gas mixtures of 12.5% and 10.0% oxygeon were given, respectively.Rats were sacrificed at 1, 3 and 6 hours after injury for gross anatomic examination, light and electron microscopeobservation and lung water determination. The level of SP-A in BALF was detected by Western blot. The data wereprocessed by t test or Chi-square test. Results The respiration increased with shortness of breath and dysphoria inrats of BA Ⅰ and BA Ⅱ groups, and obvious cyanosis on the lips and nose in rats of BA Ⅱ group after blast injury.The lung water in rats of all injury groups was significantly higher than that in normal control group (P<0.05).Gross anatomy changes were mainly pulmonary bleeding and edema. Under light microscope, incrassation of alveo-lar wall, bleeding in alveolar and mesenchyme edema were found. Whereas under electron microscope, breakageof alveolar wall and decrease of lamellar bodies in type Ⅱ cell were observed. All these changes were most obviousin BA Ⅱ group followed by BA Ⅰ and BI groups in severity decling order, with mortality rate of 37.5%, 11.1%and 2.1% respectively at 6 hours (P<0.01). The SP-A level in BALF decreased significantly (P<0.01) andhad a good negative relationship with the lung water after injury (r=0.796, P<0.001 ). Conclusions Blastinjury combined with hypoxia significantly deteriorates the lung injury. More severe and longer hypoxia may resultin more severe lung injury and higher mortality rate. A decrease in SP-A value in BALF shows a good negative re-lationship with the pulmonary edema. The SP-A can be a good indicator for lung injury severity after blast injuryand blast injury combined with hypoxia.

Objective To investigate the effects of ischemic postconditioning (IPOC) on myocardial perfusion and prognosis in patients with acute ST-segment elevation myocardial infarction (STEMI) who were treated with emergency percutaneous coronary intervention (PCI). Methods A total of 203 patients with STEMI who received emergency PCI were randomly divided into IPOC group (n=103) and control group (n=100). For the patients of IPOC group the angioplasty balloon was re-inflated within one minute after the beginning of reperfusion, the procedure was repeated three times, each time the inflation of balloon lasted for 1 minute using low-pressure (4-6 atm), and the interval between the inflation procedures was one minute. For the patients of the control group , no additional intervention was employed during the first 6 minutes of reperfusion. Cardiac troponin I(cTnI) peaks, creatine kinase-MB (CK-MB) peaks, left ventricular ejection fraction (LVEF), wall motion score index (WMSI), corrected thrombolysis in myocardial infarction (TIMI) frame count (CTFC), and major adverse cardiac events (MACE) occurred during hospitalization time in both groups were recorded and the results were compared between the two groups. Results No significant differences in age, sex, risk factors, infarction-related artery, ischemia time, etc. existed between the two groups (P>0.05). The CTFC values of IPOC group were significantly faster than those of the control group, that was (25.3±7.9) vs.(29.4±8.4),(P<0.05). The CK-MB peak and cTnI peak values of IPOC group were remarkably lower than those of the control group, those were (157.3 ±83.6) U/L vs. (201.5 ±77.3) U/L and (2.5 ±1.3) ng/mL vs. (3.1 ±1.0) ng/mL respectively (P<0.05). At the time of admission, there were no significantly differences in the LVEF and WMSI values between the two groups, and three months after PCI the LVEF and WMSI values of IPOC group were significantly better than those of the control group, those were (57.4 ±8.7)% vs. (53.6 ±9.3)% and (1.19 ±0.4) vs. (1.27 ±0.3) respectively, the differences were statistically significant (P<0.05). Three months after PCI, the occurrence of MACE in IPOC group was obviously lower than that in the control group (P<0.05). Conclusion Ischemic postconditioning can improve the infarction-related artery blood flow in patients with STEMI who receive emergency PCI treatment, it can also reduce ischemia-reperfusion injury and improve the cardiac function as well as patient’s prognosis after AMI.