Objective To investigate the feasibility and superiority of combined spinal epidural anesthesia incesarean section.Methods 100 lying-in women who experienced cesarean section were collected and divided into combined spinal epidural anesthesia group(CSEA,n=50)and continuous epidural anesthesia group(CEA,n=50).The change of heart rate(HR),blood pressure(BP)and saturation of peripheral oxygen(SpO2),HR and BP of lyingin womeu in pre-anesthesia,5min,15min post-anesthesia and the time of taking effect,time between beginning of anesthesia and laboar of newborn were observed.The side effects of surgical anesthesia and Apgar score of newborn were compared between the two groups.Results There were no difference in clinical data,change of HR,BP and spO2 between two groups.The anaesthetic time of taking effect and the time between beginning of anesthesia and labour of newborn in group CSEA were shorter than in group CEA(all P＜0.05).Conclusion The combined CSEA and CEA was safe and efficient in cesarean section,and CSEA had greater efficacy than CEA in cesarean section.

Objective To acknowledge the value of interventional therapy in gastrointestinal massive bleeding after abdominal surgery. Methods Retrospectively analyzed 11 patients with acute gastrointestinal bleeding after abdominal surgery, failure to conservative treatment and then undergone emergency angiography or interventional therapy. The correlative evaluation of DSA and interventional therapy was summarized. Results All together 11 case of abdominal postoperative massive gastrointestinal bleeding were undertaken DSA, revealing the bleeding sites as follows: the left gastric artery in 1 case, the gastroduodenal artery pseudoaneurysm in 4, hepatic artery pseudoaneurysm in 2, splenic artery pseudoaneurysm in 1, infected pseudoaneruysm of the branches of the inferior mesenteric artery in 1 and small branches of the superior mesenteric artery in 2 cases. Conclusion Interventional therapy in the treatment of gastrointestinal massive hemorrhage after abdominal surgery is effective.

Objective To investigate the characteristics and mechanism of W-shaped orthotopic ileal neobladder. Methods A total of 20 patients with W-shaped orthotopic ileal neobladder after total cystectomy were evaluated by urodynamic examinations (questionnaire of urination,uroflowmetry,post-voiding(PVR) residual urine volume measurement,enterocystometry and resting urethral pressure profilometry);meanwhile cystourethrography,B-ultrasound,renal function test and IVU were performed. Results Of the 20 cases,2 suffered from daytime incontinence and 6,nocturnal incontinence.The maximum capacity of neobladder was (492.9?177.8)ml,and maximum pressure within the reservoir was (32.1?8.6 )cm H 2O (1 cm H 2O=0.098 kPa).The urine flow curve showed continual type in 12 cases and intermittent type in 8,with maximum uroflow rates of (14.9?2.5 )ml/s,(7.7?2.8)ml/s;capacity of neobladders of (409.0?96.1)ml,(622.1?197.7)ml;PVR of (9.2?11.8)ml,(69.0?38.4)ml,respectively,in the 2 type groups.These values were significantly different between the 2 groups (P

[Objective]To explore the short-term outcome and surgical technique of minimally invasive unicondylar knee arthroplasty(MIS-UKA) for medial compartmental osteoarthritis of the knee. [Methods]Forty-five patients(48 knees) with medial compartmental osteoarthritis of knee treated by MIS-UKA from May 2005 to December 2008 were reviewed and analyzed.The pain and range of motion(ROM) of the knees were evaluated by HSS score system before and after MIS-UKA.Pre-and postoperative alignment of the lower limbs was measured and compared.Surgery indications and surgical technique of MIS-UKA were also summarized.[Results]Forty-three knees in 40 patients were followed up for a mean time of 24 months(12-40 months).The pain over medial compartment of the knees was subsided or relieved in all cases.The post-operative ROM of the knees was 0?~135?(mean 120?),and alignment was 2? varus on the average(0?~6? varus).HSS score increased from 70(60~82) to 90(75~95).The good-to-excellent rate was 92%.[Conclusion]MIS-UKA is an effective method for medial compartmental osteoarthritis of the knee.Surgery indications and surgical technique are the key factors for the final results.

BACKGROUND: The meniscus has limited ability in repairing itself after being injured. However, tissue engineering provides a new way to meniscus repair after injury. Bone marrow mesenchymal stem cells (BMSCs), which possess the potential of multi-directional differentiations, can be ideal seed cells in meniscus tissue engineering. OBJECTIVE: To investigate the feasibility of differentiation of in vitro cultured porcine BMSCs into fibrochondrocyte phenotypes in inductive medium. METHODS: BMSCs were isolated with whole bone marrow culture method. Then, BMSCs of the third passage were digested and incubated in a medium containing transforming growth factor-β1, insulin-like growth factor-Ⅰ, dexamethasone and ascorbic acid in a 24-well plate at a density of 2.0×10~4/cm~2 in the experimental group. While in the control group, the DMEM-LG complete culture medium containing no inductive factor were used instead. At day 7, 14 and 21 after induction respectively, Toluidine blue staining and immunocytochemical staining were performed to detect differentiation. MAIN OUTCOME MEASURES: ①Population double time (PDT) of BMSCs; ②Morphological changes of BMSCs under light microscope;③Proteoglycan expression;④Collagen type Ⅰ and type Ⅱ expression. RESULTS AND CONCLUSION: ① The PDT of the second passage BMSCs was 2 days, which was the shortest. The PDT prolonged relatively after the fourth passage, which were 5 to 9 days. ② The BMSCs changed from a spindle-like appearance into a polygonal shape after induction. ③ In the experimental group, toluidine blue staining resulted in hyacinthine-stained cytoplasm and the blue was even deeper in the area where cells were dense; The degree of staining increased with the increasing induction time. While in the control group, only nucleus of BMSCs were stained blue. ④ Collagen type Ⅰ immunocytochemical staining was positive in both the experimental and the control group and there was no difference of significance between various induction time. No collagen type Ⅱwas seen expressed in the control group, while in the experimental group it was seen to be expressed steadily after 14 days of induction. It is indicated tlat BMSCs can be induced to synthesize fibrochondrocyte-characterized extracellular matrixes in vitro, which suggests that BMSCs are available as seed cells in meniscus tissue engineering.

Objective To reseach the time point of the highest percentage of neural precursor cells derived from adipose stromal cells (ADSCs) in vitro, and to observe the ultrastructure features of neural precursor cells. Methods Used the β-mercaptoethanol to induce ADSCs to differentiate into neural precursor cells and neuron-like cells. The morphology of the uninductedcells and inducted cells were observed with inverted phase contrast microscope. The expression of nestin which was the marker of neural precursor cell in each group was detected using immunofluorescence staining method. The ultrastructural feature of cells which was induced for 3 hours were observed. Results The highest ratio of positive expression of nestin was 3 hours following induction,with the ratio ( 86.25 ± 4.82) %. There were many protuberance on the cell membrane under transmission electron microscopy.There were plenty of organelles in the neural precursor cells. The neural precursor cells had a large size nucleus,large nucleoplasmic index, much extended chromatin,and less condensed chromatin. The nucleus had double-layer nuclear envelope, more nuclear pore on the nuclear envelope. Conclusion The time point of the highest percentage of neural precursor cells derived from ADSCs is 3 hours,and the ultrastructral feature of induced neural precursor cells confirm that cells at this time point are in a state of split active period.

Objective To detect the preliminary results of combined periacetabular and intertrochanteric osteotomies for complex hip dysplasia.Methods From January 2006 to August 2011,23 patients (25 hips) with complex hip dysplasia were treated with combined periacetabular and intertrochanteric osteotomies (ITO).Valgus ITO was performed on 2 hips and varus ITO on others.The averagc age of patients at the time of index procedure was 20.5± 3.9 years (range:15 to 26).The hip pain period before surgery varied from 5 to 24 months (mean 11±4.7 months).The Shenton's line was broken in every hip and the mean preoperative lateral central edge angle (LCEA) was 5.6°±4.6°.The average preoperative fenoral neck-shaft (CCD) angles were 158°±3.2° and 110° in 23 valgus hips and both of two varus hips respectively.The preoperative Harris hip score was 76.7±3.7.According to T(o)nnis osteoarthritis grades,there were 7 hips at grade 0,12 hips at grade Ⅰ and 6 hips at grade Ⅱ.Results The mean followup period was 40±18 months (range:12 to 78).The CCD angle (130°±2.1°),LCEA (28.6°±2.9°) and Harris hip score (90.8±3.3)were all improved postoperatively,whereas no progression was found in preoperative T(o)nnis grades.The postoperative Harris hip scores were excellent in 17 hips and good in 8 hips.The T(o)nnis osteoarthritis grades were grade 0 in 6 hips,grade Ⅰ in 11 hips and grade Ⅱ in 8 hips.There wcre six cases with lateral femoral cutaneous nerve injury,three cases with limp and two cases with broken Shenton's line.Neither femoral head necrosis nor bone nonunion was found in this study.Conclusion Satisfactory preliminary results could be obtained through combined periacetabular and intertrochanteric osteotomies among patients with complex hip dysplasia.The risk of femoral head necrosis and bone nonunion was low.

This article discusses the status quo of the researches on neuropsychiatric lupus,including its pathophysiological mechanism,clinical manifestation,diagnosis,treatment and prognosis.Cerebrospinal fluid examination,electroencephalography and brain imaging could improve the sensitivity of the diagnosis of neuropsychiatric lupus.Aggressive immunosuppressive agents,high-dose corticosteroids and anticoagulants remain the key to the therapy.However,future researches should focus on the control of long-term relapse and the improvement of the quality of life.

Objective To observe the effect of gene gun transduction of K-RAS Antisense gene on the expression of K-RAS P21 protein in human pancreatic carcinoma cells.Methods K-RAS Antisense gene was transduced into pancreatic carcinoma cells by gene gun transduction, the expression of K-RAS P21 protein on BxPC-3、AsPC-1 and MiaPaCa-2 pancreatic carcinoma cells line were examined by western blot and immunocytochemistry staining. Results The expression of K-RAS P21 protein in AsPC-1 and MiaPaCa-2 pancreatic carcinoma cells was obviously lower after the transduction of specific K-RAS Antisense gene,which has little impact on BxPC-3 pancreatic carcinoma cells. Conclusion Gene gun transduction of K-RAS Antisense gene is a potential method for treatment of pancreatic carcinoma.

Objective To investigate the change of the content of polysaccharides in crude and processed Fructus Corni,thus to approach the process mechanism of Fructus Corni.Methods The content of polysaccharides in the crude and processed Fructus Corni was determined by phenol-sulfuric acid method.Results After processing with wine,the content of polysaccharides of Fructus Corni decreased from 10.12 %(content of total polysaccharidesbeing 51.41 %) to 5.91 %(content of total polysaccharidesbeing 53.10 %),decreased by 41.60 %as compared with that in the crude Fructus Corni.Conclusion After processing with wine,the content of polysaccharides decreases markedly.The results provide certain evidence for approaching the process mechanism of Fructus Corni.