Objective To evaluate the risk of chondral injury during anterior cruciate ligament (ACL) reconstruction using a double cross-pin femoral fixation device via the anteromedial portal in Chinese cadavers. Methods Nine specimens of the knee (6 left ones and 3 right ones) were taken from 5 male and 4 female conservative cadavers of Chinese adult. The average age of the cadavers were 34.8 (26 to 45)years old. Femoral tunnel drilling and cross-pin guide insertion were performed using the Rigidfix Cross Pin device through the anteromedial portal. The ACL reconstructions were simulated at 3 entrance points of the cross-pin (0°, 45° and 90° relative to the horizontal plane) . The risks of chondral injury were statistically analyzed when the cross-pin entrance point was at the 3 different positions relative to the femoral chondral surface. Results The incidence of chondral injury was 100% when the Rigidfix cross-pin guide was at 90° relative to the horizontal plane. When the Rigidfix cross-pin guide was at 45° and 0° the incidences of chondral injury were 66. 7% and 22. 2% respectively. Conclusion Since there is always a risk of chondral injury when the Rigidfix cross-pin device is used to reconstruct ACL via the anteromedial portal, the anteromedial portal is not recommended for the ACL reconstruction using Rigidfix femoral fixation.

Objective:To study the influence of r-tPA and urokinase in curative effect and thrombolysis time on patients with acute and severe pulmonary embolism after interventional thrombectomy .Methods:After reviewing and analyzing the clinical data of 19 acute and severe pulmonary embolism patients , we classified them into two groups in accordance with the application of r-tPA and urokinase to compare the changes of their heart rate , blood pressure , pulmonary arterial pressure , arterial partial pressure of oxygen and hemachrome before and after thrombolysis , as well as the thrombolysis effect time the two groups took.Results: The heart rate, blood pressure, pulmonary arterial pressure , arterial partial pressure of oxygen of the patients in both groups gained remarkable improvement after operation ( P<0 .05 );the pulmonary arterial pressure of the r-tPA patient group dropped but not significantly compared with that before operation ( P>0.05); the pulmonary arterial pressure of the urokinase patient group dropped significantly compared with that study before operation ( P<0.05 ); the hemachrome of both patient groups did not significantly drop after operation ( P>0 .05 );the thrombolysis effect time by adop-ting r-tPA was remarkably shorter than that caused in thrombolysis by adopting urokinase ( P<0 .05 ) . Conclusion: Both r-tPA and urokinase are effective in interventional thrombolysis for acute and severe pulmonary embolism .However , r-tPA could significantly shorten the time caused in thrombolysis without increasing any bleeding risk.

Objective To study changes of serum IL-17 and IL-35 levels in patients with heart failure. Methods 60 patients with heart failure (observation group)were selected as research subjects.60 patients accord-ing to different severity were divided into acute period heart failure (34 cases)and stable stage heart failure (26 ca-ses);60 patients graded according to the NYHA standards were divided into 24 cases of heart failure with grade Ⅱ, 20 cases of grade Ⅲ ,16 cases of grade Ⅳ.According to the different primary diseases :expansion cardiomyopathy group (20 cases in group A),the coronary heart disease group (group B,24 cases),hypertensive heart disease group (group C,16 cases).During the same period,42 healthy elderly people in our hospital were selected as control group. The serum IL-17,IL-35 levels were tested,and the serum IL-17,IL-35 levels in patients with heart failure were ana-lyzed.Results Serum level of IL-17 in the observation group was higher than the control group,and the difference was significant [(15.61 ±4.02)pg/mL vs (9.49 ±3.96)pg/mL,t =9.018,P <0.01].Serum level of IL-35 in the observation group was significantly lower than that of the control group,and the difference was significant[(52.78 ± 4.29)pg/mL vs (61.49 ±4.81)pg/mL,t =11.963,P <0.01].The level of serum IL-17 in acute stage of patients with heart failure was higher than that of stable heart failure,and the difference was significant (t =6.278,P <0.01);IL-35 level in serum of patients with heart failure in acute phase was lower than that of stable heart failure,the difference was significant (t =9.529,P <0.01).With the increase in heart failure grade,serum IL-17 level showed a rising trend,and the differences among three groups had statistical differences (F =6.098,P <0.01);serum IL-35 level decreased,and the differences among three groups had statistical differences(F =8.978,P <0.01).The serum IL-17 level of A group was higher than that in B group and C group,there were significant differences (F =6.096, P <0.01),the serum IL-17 level between B group and C group had no statistical difference (t =0.172,P >0.05). The serum IL-35 level of A group was lower than that of B group and C group,there were significant differences (F =8.978,P <0.01),the serum IL-35 level between B group and C group had no statistical difference (t =0.208,P >0.05).Serum IL-17 and serum IL-35 level was negatively correlated (r =-0.429,P =0.009).Conclusion High expression of IL-17 in elderly patients with heart failure,while IL-35 decreased in elderly patients with heart failure, IL-17,IL-35 are closely related to the senile congestive heart failure and the severity of illness.Serum IL-17 is nega-tively correlated with the level of serum IL-35.

180)were 0.74?0.13,0.88?0.12,0.94?0.12 and 0.97?0.15 mm,respectively.ASI was positively related with IMT(r=0.395,P

ObjectiveTo investigate the treatment strategies and factors influencing the prognosis of patients with primary gallbladder carcinoma.MethodsThe clinical data of 135 patients with primary gallbladder cancer who were admitted to the Cancer Hospital of Tianjin Medical University from January 2000 to December 2009 were retrospectively analyzed.The survival curve was drawn by the Kaplan-Meier method,and the survival rates were analyzed by using the Log-rank test.Factors which may have influences on the prognosis were analyzed by univariate analysis and COX multivariate analysis.ResultsThe overall 1-,3-,5-year survival rates of the 135 patients were 46.7％,10.4％ and 5.2％,respectively.The 1-,3-,5-year survival rates of 74 patients who received radical resection of gallbladder cancer were 68.9％,18.9％ and 9.5％,respectively.The 1-,3-,5-year survival rates of 50 patients who received palliative treatment were 24.0％,0 and 0,respectively.The 1-,3-,5-year survival rates of 11 patients who received conservative treatment were 0,0 and 0,respectively.There was no significant difference in the survival rates among patients who received different treatment methods (x2 =5.642,P ＜ 0.05 ). Of the 9 patients with gallbladder cancer who received reoperation after laparoscopic choledochotomy,the survival time of 1 patient in stage Ⅰ and 1 of the 3 patients in stage Ⅱ who received radical surgery exceeded 5 years,while the survival time of 5 patients in stage Ⅱ who received palliative treatment was shorter than 5 years.There was a significant difference in the survival time among the 3 groups of patients ( x2 =5.642,P＜0.05).Under the condition of same TNM stages ( Ⅱ,ⅢA,ⅢB,ⅣA,ⅣB),the survival rates of patients who received radical resection of gallbladder cancer were significantly higher than those who received palliative or conservative treatment ( x2 =8.971,21.250,44.153,6.696,21.722,P ＜ 0.05 ).The results of univariate analysis showed that age,CA19-9,TNM stages and treatment methods were risk factors influencing the median survival time ( x2 =8.466,3.977,9.837,5.642,P ＜ 0.05 ).The results of multivariate analysis showed that age,TNM stages and treatment methods were the independent risk factors influencing the median survival time ( Wald=5.779,14.724,11.640,P＜0.05).ConclusionThe prognosis of primary gallbladder cancer is poor.Age,TNM stages and treatment methods are the independent factors influencing the prognosis of patients with gallbladder cancer,and patients who receive radical resection have relatively good prognosis.

Objective To study the effect of an immuno-targeted therapy drug Herceptin on apoptosis and cell cycle of overexpressing HER2 breast cancer cells.Methods Breast cancer cell line SKBR-3 was treated with Herceptin at most effective dosage and exposure time were selected by MTT assay.Then the apoptotic features,the apoptotic rate and the change of cell cycle of breast cancer cells were detected by fluorescent microscope(FM),laser confocal microscope(LCM),scanning electron microscope(SEM),transmission electron microscope(TEM)and flow cytometry(FCM).Results With the treatment of Herceptin,the visible apoptosis features of SKBR-3 cells were observed by FM,LCM,SEM and TEM.Compared to the control cell group,the rate of initial apoptotic cells detected by FCM with Annexin V/PI staining increased significantly(P

Objective:To investigate the effects of ligamen remnant preservation on knee joint function and proprioception recovery in patients with anterior cruciate ligament (ACL) injuries during ACL reconstruction under arthroscope.Methods:The clinical data of 266 patients with ACL injuries,who were treated in the 174th hospital of PLA from January 2010 to March 2016,were retrospectively analyzed.All the patients underwent ACL reconstruction under arthroscopy,among them,163 patients with remnant preservation were chosen as remnant preservation group;103 patients with completely clearing remnant preservation in the operation,as non remnant preservation group.All the patients were followed up for more than 12 months,and the knee function and proprioception recovery of the two groups were evaluated.Results:There were no significant differences in the knee ipsilateral Lysholm score,international knee documentation committee knee assessment scale (IKDC) score,passive activity detection threshold,passive angle regeneration test results between the two groups before operation,9 and 12 months after operation (P＞0.05).The Lysholm scores and IKDC scores of the two groups at each time point were significantly higher than those before operation,the passive activity detection threshold and passive angle regeneration test results were significantly lower than those before operation (P＜0.05).The Lysholm scores and IKDC scores in the remnant preservation group 3 and 6 months after operation were higher than those in the non remnant preservation group,the passive activity detection threshold and the passive angle regenerated test results were lower than the non remnant preservation group,the difference was statistically significant (P＜0.05).Conclusion:Remnant preservation in the ACL reconstruction under arthroscopy can accelerate the recovery of knee joint function and proprioception,and satisfactory clinical results are achieved,which is worth popularizing.

Objective To evaluate the technique of selective portal vein embolization before hepatectomy and its value in the preparation of major hepatic resection for those with insufficient future remnant liver.Methods From Jan 2008 to July 2012,6 patients who suffered from hepatic tumors underwent selective ipsilateral portal vein embolization (PVE) due to insufficient future remnant liver volume (FRLV) before second-stage major hepatic resection.Results Technically,all six PVE were completed successfully with only minor liver function damages.The average FRLV increased from (474.33 ± 89.19)cm3 to (722.67 ± 151.51) cm3 (t =-5.587,P =0.003).The average tumor burden (total tumor volume)increased from (134 ± 181) cm3 to (270 ± 346) cm3 (t =-1.64,P =0.16).Five cases underwent secondstage major hepatectomy 6 weeks after PVE,while in 1 case a resection attempt was abandoned because of uncontrolled tumor growth during the period.During the follow-up period (median 37 months),1 died,4 survived,2 were tumor-free.Conclusions Selective portal vein embolization is a safe and effective method to induce hepatic hypertrophy in the appropriate clinical setting.Before PVE,hepatic tumor should be controlled beforehand with chemotherapy or TACE to ensure the scheduled second-stage hepatectomy.

Objective:To evaluate the effectiveness and safety of endovascular treatment in solving symptomatic cerebral artery tandem lesions.Methods:From June 201 2 to February 201 4,1 2 cases (24 lesions)with symptomatic cerebral artery tandem lesions were accepted for the endovascular treatment. The distributions of the tandem lesions were as follows:the common carotid artery and internal carotid ar-tery (1 case),the internal carotid artery and the proximal of the carotid cavernous sinus segment (3 ca-ses),the internal carotid artery and the distal of the carotid cavernous sinus segment (4 cases),the in-tracranial segment of internal carotid artery and middle cerebral artery M1 segment (2 cases),the first segment of vertebral artery and intracranial segment of vertebral artery (2 cases).All of these cases were treated from distal lesions to proximal lesions except for tandem lesions in the internal carotid artery and the distal of the carotid cavernous sinus segment in order to obtain better support.Tandem lesions were treated in the same operation with local anesthesia or general anesthesia.The procedures of the 1 2 cases retrospectively were analyzed and the peri-operation complications and responsibility region recurrent is-chemic stroke incidents observed.Results:All tandem lesions were solved successfully all at once.There were no peri-operation complications or recurrent ischemic stroke incidents.There were no recurrent is-chemic stroke incidents or stent restenosis cases in the follow-up.Conclusion:It is safe and effective for selective endovascular treatment in solving symptomatic cerebral artery tandem lesions at the same time, but we should take careful preoperative evaluation and improve the operation plan.

Objective:To establish the methods for the qualitative identification and content determination of aurantio-obtusin and chrysophanol in Zeju Jiangzhi tablets. Methods:A TLC method was adopted for the qualitative identification, and an HPLC method was used for the content determination. The determination was performed on a Wondasil C18 (250 mm × 4. 6 mm, 5 μm ) column with the mobile phase of acetonitrile -0. 1% phosphonic acid with gradient elution at the flow rate of 1. 0 ml?min-1 , the detection wave-length was 286 nm, the column temperature was 30℃ and the injection volume was 10μl. Results:The TLC spots of aurantio-obtusin and chrysophanol were clear and well-separated without any negative interference. The HPLC experiment results showed the good line-arity within the range of 1. 03-25. 72μg?ml-1(r=0. 999 9) for aurantio-obtusin, and 0. 48-11. 92μg?ml-1(r=0. 999 9) for chry-sophanol. The average recovery was 99. 21% and 98. 85%, and RSD was 0. 70% and 0. 73%, respectively (n=9). Conclusion:The method is simple, accurate and repeatable, which can be used for the qualitative identification and content determination of auran-tio-obtusin and chrysophanol in Zeju Jiangzhi tablets.