Objective To investigate the effects of Huangqi on the activity of enzyme,in brain mitochondria after brain trauma in rats.Methods The models of laceration of brain incluced by free falling were set up.The Huangqi was intraperitoneally injected immediately after brain trauma. The mitochondria were isolated at 4 h,24 h and 48 h after treatment respectively while the activity of ATPase and SOD and the content of MDA were measured by biochemical technique.Results Activity of ATPase( P

Objective To analyze frequent causes of serious complications of laparoscopic cholecystectomy (LC). Methods A retrospective analysis was made on the diagnosis and treatment of 10 cases of serious complications out of 986 cases of LC. Results The complications included 2 cases of bile leakage caused by the detachment of titanic clips, 1 case of subphrenic Abscess, 3 cases of common bile duct injury, 2 cases of residual stones in the common bile duct, 1 case of duodenal injury, and 1 case of jejunal perforation caused by the Veress needle. No severe outcomes were seen after treatment. Conclusions Causes leading to complications in LC include local adhesion, serious inflammatory edema, serious intraperitoneal adhesion around the umbilicus, anatomic variations of the gallbladder, and lack of experience and proficiency in surgical performance.

Objective To introduce the experience of applying horns percutaneous tracheostomy in critically ill neurosurgical patients. Methods The size of operative incision, operation time, amount of blood loss, incision healing time , and incidence of complications were analyzed retrospectively in 95 patients with GWCH and 83 with ST. Results There were smaller size of operation incision [(1.6 ± 0.4) cm vs. (3.8 ± 0.9) cm], shorter operation time [(4.4 ± 2.8) min vs. (20.5 ± 5.2) min], less blood loss [(4.5 ± 0.8) mL vs. (8.5 ± 4.5) mL] and shorter incision healing time [(3 ± 0.5) d vs. (5 ± 1.5) d] in GWCH group than that in ST group and the difference was statistical significant (P < 0.01). The incidence of incision blood leaking after operation was lower in GWCH group (2.1%) than that in ST group (16.9%) and the incidence of incision sputum leaking was lower in GWCH group (1.1%) than that in ST group (14.5%), but no difference was found in terms of the incidence of other complications (P > 0.05). Conclusions When compared with traditional ST, horns percutaneous tracheostomy is with smaller incisions , shorter operation time , less blood loss , faster healing and lower incision sputum leaking and is worthy of popularization in critically ill neurosurgical patients.

Objective To explore the effect of the mutant and expression level of N-ras on chronic myelogenous leukemia. Method We investigated the mutant by direct sequencing in a K562 human chronic myelogenous leukemia cell line, with determination of the expression level of N-ras mRNA in K562 by RT-PCR. Result No single point mutation was detected in K562 cell line, furthermore, the expression level of N-ras gene is abnormaly high in contrast to normal human. Conclusion Our results indicated that the expression level of N-ras gene was obviously high in K562 cell line, and the underlying mechanism was not only mutation, so that further investigation is called for.

Objective To investigate the echocardiographic features in patients with right atrial myxoma and thus evaluate the value of echocardiog?raphy in the diagnosis of right atrial myxoma. Methods The echocardiographic findings of 20 patients with right atrial myxomas were retrospectively analyzed,and the echocardiographic features of these patients were summarized. Results The main clinical symptoms of right atrial myxoma includ?ed chest tightness,shortness of breath,lower limb edema,and syncope. Of these 20 patients,the echocardiography showed that the average size of the right atrial myxomas was 3.11 cm × 2.90 cm to 7.44 cm × 4.52 cm. The myxomas were round or oval shape in 15 patients(75%)and lobulated shape in 5(25%). The myxomas were attached to the atrial septum in 15 patients(75%)and to right atrial free wall in 25%of the patients. The aver?age width of the basement was 1.62±0.30 cm,and the width was greater than 1 cm in 80%of the patients had the width over 1 cm. Some myxomas had internal areas of calcification and anechoic cystic areas. The percentages of patients with the blocking of right atrium,tricuspid and pulmonary hy?pertension were 70%,50%,and 10%,respectively. Conclusion The echocardiographic features of right atrial myxoma were specific. Echocardiog?raphy can accurately assess the tumor and identify the secondary changes in cardiac structure and hemodynamics and thus provide evidence for time?ly and accurate diagnosis of right atrial myxoma.

Objective To study the expression of MCP-1 in the diabetes mellitus skin defect healing, then discuss its effect. Methods The diabetes mellitus models were established, and the expression of MCP-1 was detected by immunohistochemical staining and Elisa. Results The immunohistochemistry stain showed that the expression of MCP-1 in DM group was higher than that in control group at all time. And the serum value of MCP-1 in DM group had statistical significance ( <0.05) at 3 days or 1 week, but that in 2 weeks and 4 weeks was no statistical significance ( <0.05) . Conclusion The MCP-1 might play a role in the healing of diabetes mellitus skin defect through mediate abnormal inflammatory response.

Objective The objective of this study was to investigate the relationship between the expression of RAD18 and radiation resistance in glioblastoma multiforme(GBM)and to provide a new therapeutic target for improving the radiation resistance of GBM.Methods Human glioma A172 cells were transfected into blank and RAD18-containing plasmid vector.The cell proliferation of two groups after the same dose radiation was detected by cloning assay.The mRNA expression of RAD18 in primary and recurrent GBM samples after close proximity treatment were detected by qRT-PCR.All data were analyzed statistically.Results The proliferation of GBM cells transfected with RAD18 plasmid was higher than that of cells transfected with blank plasmid after radiation therapy(P<0.001).The expression level of RAD18 mRNA in recurrent GBM was higher than that in the untreated radioactive granules primary GBM(P<0.01).Conclusion The resistance of recurrent GBM to radiotherapy may be associated with the overexpression of RAD18 protein.

With the development of minimally invasive surgical technology, laparoscopic cholecysteeto-my, endoscopic retrograde cholangiopanereatography, endoscopic sphincterotomy and choledochoscopy were applied increasingly in the clinical practice. Based on the domestic and foreign literatures, this article re-viewes these minimally invasive surgical technologies.

ObjectiveTo evaluate temporary balloon occlusion of the abdominal aorta in high-order position sacral tumor surgical operation as a useful adjuvant technique.MethodsReviewed 79 cases of patients from 2005 to 2015 treated in our department and the diagnosis of high-order position sacral tumor. Temporary balloon occlusion of abdominal aorta was used in 50 patients(male 29,female 21)during the sacral tumors surgical operations. The other 29 patients(male 18,female 11)with sacral tumors who received the non-temporary balloon occlusion therapy were used as control group. The statistical differences of the whole surgery time,the blood loss during the surgery,the happening of the postoperative deep vein thrombosis,the time of the postoperative extubation were analyzed. ResultsThe differences were statistically significant(P<0.001)in the whole surgery time of balloon occlusion group(146.36±29.38)min vs non-balloon occlusion group(206.03±125.93)min,the blood loss of balloon occlusion group(1610.70±491.14)ml vs non-balloon occlusion group(2658.62±562.213)mL, and the time of the postoperative extubation of balloon occlusion group(6.60±2.76)d vs non-balloon occlusion group(12.52±2.86)d. However,there was not significant difference of the happening of the postoperative deep vein thrombosis between balloon occlusion group and non- balloon occlusion group. ConclusionTemporary balloon occlusion of abdominal aorta is effective and reliable. It significantly reduced the time of operations,the loss of blood,mean days in hospital,effusion of post-operation and recurrence rate. It makes the operation of sacral tumors much more safer than before and is a technique worthy of popularizing.

10.3969/j.issn.1007-3969.2013.05.004