Objective To detect the expression of hypoxia inducible factor-lα (HIF-1α) in both mRNA and protein and reactive oxygen species (ROS) levels in human epithelial ovarian cancer,and investigate the abnormal state of oxygen metabolism and their interaction in human epithelial ovarian cancer develoment.Methods The expression of HIF-1α in mRNA and protein in epithelial ovarian cancer were detected by real time reverse transcription-polymerase chain reaction and immunohistochemical Elivision plus two-step method,and the level of ROS was detected by fluorescence microplate reader.Results The relative content of HIF-1α mRNA in the epithelial ovarian cancer group was 4.466±0.754,which was higher than that of the benign control group (6.073±1.053) (t =-7.701,P =0.000).The expression of HIF-1α mRNA was raised gradually in tissues of the benign ovarian tumor,early and advanced stage of epithelial ovarian cancer (t =5.301,P =0.000).The expression of HIF-1α mRNA in the epithelial ovarian cancer had positive correlation with grade and lymph node metastasis (t =3.724,-3.851,P =0.000).The positive expression rate of HIF-1 α protein in epithelial ovarian cancer was 63.49 ％ (40/63),which was higher than that of the benign group (U =433,P =0.005),which had positive correlation with lymph node metastasis and stage (x2 =4.289,12.360; P =0.038,0.000).The expression of ROS in the epithelial ovarian cancer was 110.239±18.414,which was higher than that of the benign group (58.366±20.360) (t =11.068,P =0.000),which had positive correlation with grade,lymph node metastasis and stage (t =-2.055,2.816,-4.138; P =0.044,0.007,0.000).There was a moderate positive correlation between the expression of HIF-1α mRNA and ROS in epithelial ovarian cancer (r =0.572,P =0.000),and that was similar in low differentiation group and advanced group,there was a relatively high positive correlation in lymph node metastasis group (r =0.703,P =0.001),there was a relatively low correlation between HIF-1α mRNA and ROS (r =0.376,P =0.002).Conclusion Hypoxia is the basic characteristic of human epithelial ovarian carcers.This study suggested that HIF-1α is associated with human epithelial overaian cancer prognosis.ROS and HIF-1α might be involved in the genesis of human epithelial ovarian cancer,and the regulation of ROS to HIF-1α may play the important roles in the invasion and metastasis process of human epithelial ovarian cancer.The expression of HIF-1α is regulated by ROS at the transcriptional and protein levels,probably mainly on protein level.

Objective To detect the expression of selenium binding protein 1 ( SBP1 ) in gastric cancer cell line SGC7901, BGC823, normal gastric epithelial cell line GES-1, gastric cancer tissues and normal gastric tissues, explore the relationship between SBP1 and pathologic features, and discuss the feasibility of SBP1 as an diagnostic marker of gastric cancer. Methods The clinical data of 135 patients with gastric cancer who were admitted to Zhongnan Hospital of Wuhan University from 2006 to 2007 were retrospectively analyzed. The expression of SBP1 in the gastric cancer tissues and 16 cases of normal gastric tissues were detected by immunohistochemistry. The mRNA and protein expressions of SBP1 of SGC7901, BGC823 and GES-1 were determined by Western blot and RT-PCR. All data were analyzed by using chi-square test and one-way analysis of variance.Results The mRNA expressions of SBP1 in BGC823 and SGC7091 were 0. 120 ± 0. 020 and 0. 133 ± 0. 015,respectively, which were significantly lower than 0. 907 ± 0. 015 in GES-1 ( F = 2106. 462, P ＜ 0.05 ). The protein expression of SBP1 in BGC823 and SGC7901 were 0.253 ±0.015 and 0.273 ±0.015 ,respectively, which were significantly lower than 0.877 ±0.025 in GES-1 ( F = 1026. 758, P ＜0.05 ). A strong positive reaction of SBP1 was observed in 3 cases of gastric cancer tissues and 16 cases of normal gastric tissues. The decrease of the protein expression of SBP1 was correlated with clinical stages of the patients ( x2 = 12. 629, P ＜ 0.05 ), rather than the sexes, ages, tumor histological types, tumor differentiation, infiltration depths and lymph node metastasis (x2 =2. 142, 0.860, 1.838, 5.001,4.858, 1.994, P＞0. 05). Conclusions The decrease of SBP1 expression could be used as a marker in diagnosing gastric cancer. Down-regulation of SBP1 expression may play an important role in the genesis and prognosis of gastric cancer.

[Objective]To investigate the treatment of nonunion after Pilon fracture with fibula approach fixation of tibia and ankle joint fixation and its clinical efficacy.[Method]Six cases of nonunion after Pilon fracture were collected from 1999 to 2004,which included 4 males and 2 females,with the average age of 34.7 years(21~53 years).All fractures were found invasion to the tibia-fibula joint and ankle malformation.Fibula and tibia were opened from posterolateral approach and reconstruction plate was placed laterally on the fibula,with screws crossing the fibula into the tibia directly.Autogenous bone graft was used in fracture position and area between tibia and fibula to gain tibia-fibula fusion.[Result]All cases were followed up from 8 months to 4 years with the average of 22 months.Bone fusion were gained in 5 cases with the average time of 3.5 months.Plate broken was found in 1 case for too early weight bearing.[Conclusion]Fibula approach fixation of tibia and ankle joint fixation has advantages of promoting fracture healing,preventing complications,and correction joint malformation.It is a convenient and reliable method for clinical surgeons.

[Objective]To summarize the experience about treatment of segmental and comminuted femoral fractures with intramedullary nail in multiple injuries.[Method]From March 2002 to July 2006,28 patients with segmental and comminuted femoral fractures were treated surgically,13 with AO type C1,9 with C2 and 6 with C3.All of the fractures were treated with close reduction static intramedullary nail fixation.[Result]The postoperative follow-up ranged from 11 to 34 months with an average of 21 months.All of the fractures were healed.Limit load was required for 5 patients who had delayed union without special treatment.After 18-30 months the patients healed up.There were no fat embolisms.No complications such as infection,intramedullary bending or break occurred.[Conclusion]Treatment of femoral fractures with intramedullary nail is a standard method.However,to achieve satisfactory results,comprehensive treatment,careful planning and procedure should be taken for segmental and comminuted femoral fractures in multiple injuries.

Objective To observe the clinical therapeutic effect of Capsule Long-Bi-Xiao(LBX) in treating benign prostatic hyperplasia(BPH).Methods 64 patients of deficiency of Qi and blood stasis type suffered with BPH were randomly divided into two groups.30 patients in the control group were treated with Capsule Long-Bi-Shu,while other 34 patients in the treated group were treated with LBX.Each group was observed for there months respectively.Results LBX decreased the international index of prostatic symptom(I-Pss) and the bother score(BS),improved the prostatic symptoms,raised the peak flow rate(Qmax) and the average flow rate(Qave),shrinked a portion of patients′ volume of prostate gland,reduced the volume of residual urine.After treatment,in the treated group,I-PSS and BS were reduced distinctly,and Qmax and Qave were heightened obviously,which was more effective than those in the control group.Conclusion LBX can achieve good action in the therapy of BPH by improving clinical symptoms,diminishing the volume of prostate and ameliorating the difficulty of urination.

Objective To analysis the efficacy and safety of endovascular graft exclusion for patients with Stanford type B aortic dissection.Methods The clinical data of 46 patients with Stanford type B aortic dissection who received endovascular graft exclusion were analyzed retrospectively.The stents were inserted from the femoral artery to exclude the tear of dissection,and all operation were peformed under digital subtraction angiography (DSA).The operative technique,outcome and complications were observed.Results The stents were successfully performed in all patients.The length of stay in hospital time after operation was 5-20 (12.9 ± 3.4) d.Endo-leak occurred in 2 patients and relieved after re-expanding.Followed up for 2 d to 5.1 years,average 36 months,1 patient got lacunar infarction and 1 patient died after leaving hospital 2 d.The others were free from the serious complications such as aortic dissection and paraplegia.Conclusion Endovascular graft exclusion is safe and effective for the treatment of Stanford type B aortic dissection in hospital and mid-term,and can significantly improve the survival rate and quality of life.

Objective To explore the effect of the JAK/STAT signal pathway on the apoptosis-related gene in the synovial tissue of rat rheumatoid arthritis (RA).Methods Fifty rat models of collagen-induced arthritis,whose arthritis index was more than 2,were divided into the model group,the low dose of AG490 group,the medium dose of AG490 group and the high dose of AG490 group.In addition,6 rats were treated intraperitoneal injection.Then,the arthritis index and the change of apoptosis-related genes were compared.Multiple-sample average was analyzed by single-factor x2 test and LSD-t or Tamhane's T 2 test were used for two-two comparison.Results The arthritis index of the model group increased evidently,and the apoptosis inhibitor Bcl-2,Bcl-xl gene and protein expression was up-regulated,which was significantly different when compared with that of the control group(0.931±0.035 vs 0.351±0.024,0.920±0.037 vs 0.271±0.029,0.322±0.047 vs 0.230±0.031 ).The expression of apoptosis promoting factor Bax wasslightly up-regulated.The blockage of JAK/STAT pathway cotld down-regulate the expression levels of the gene and protein of survivins Bcl-2 and Bcl-xl,and up-regulate the gene and protein expressions of Bax.Conclusion In the process of RA development,apoptosis inhibitor Bcl-2,Bcl-xl gene and protein expression is up-regulated.JAK/STAT signal transduction pathway regulates the apoptosis process.

Objective To summarize the experience in the diagnosis and surgical treatment of pulmonary sequestration. Method The clinical data from 15 patients with pulmonary sequestration underwent surgical operation from July 2000 to January 2009 were reviewed and analyzed retrospectively. Results Pulmonary sequestration was diagnosed in 14 patients before the operation with the diagnosis rate of 93.33% (14 /15).Preoperation plane and contrast chest CT scan were performed in all cases,and 9 patients performed angiography reconstruction. Twelve patients with intralobar sequestration underwent lobectomy and 3 patients with extralobular sequestration underwent local lesion resection. Abnormal supply arteries were intraoperatively found in 14 patients originating from the thoracic main artery, 1 patient from the eeliac artery. Smooth recovery was achieved in all patients. No perioperarive death occurred. Conclusions Pulmonary sequestration is a rare disease with high misdiagnosis rate in some patients. Contrast enhanced CT scan and angiography may improve the diagnosis of pulmonary sequestration. Operation is a safe and effective method for the treatment of pulmonary sequestration.

Fluorogenic quantitative polymerase chain reaction(FQ-PCR) is an emerging technique with high specificity,susceptibility,automatism and has been widely used for the detection and quantification of microorganism,some genetic diseases and cancer.The design and establishment of standard FQ-PCR laboratory are required not only by gene expansion and diagnosis but also by biosafty and veracity.The aim of the paper is to introduce the structural characteristics,instruments requirement and comfort parameters of FQ-PCR laboratory.

Objective To evaluate the value of renal parenchymal volume and thickness by non-contrast spiral CT in evaluating the differential glomerular filtration rate (GFR) for chronic obstructed kidneys, and to compare the correlations between the two morphologic indices of renal parenchyma and the GFR for chronic obstructed kidneys. Methods Seventy-one patients who had a diagnosis of unilateral chronic upper urinary tract obstruction were included in this analysis. (1) The renal parenchymal volume was mea-sured by non-contrast spiral CT. Both kidneys were scanned by non-contrast spiral CT. The renal parenchymal area of each section was marked manually. Renal parenchymal volume was calculated as the sum of renal parenchymal area multiplied by the width of each section. The volume percentage of obstructed kidney (%CTvol) was also calculated. (2) Renal parenchymal thickness was measured on the first and last non-contrast CT image levels from the anterior, posterior and lateral locations of the kidney that clearly contained the collecting system. The mean of these measurements was defined as the renal parenchymal thickness. The differential renal parenchymal thickness of the obstructed kidney (%CTt) was defined as the percentage of the obstructed renal parenchymal thickness to the total renal parenchymal thickness for both kidneys. GFR was determined with 99Tcm-DTPA dynamic imaging system by Gates method. The differential GFR for obstructed kidney (%GFR) was the GFR percentage of obstructed kidney to the total GFR for both kidneys. The Pearson relation test was carried out between the %CTvol, %CTt and the %GFR respectively. Results %CTvol and %CTt correlated well with %GFR in chronic obstructed kidneys among the 71 test group patients. Pearson correlation coefficient r was 0.80 (t=11.20, P＜0.05) and 0.66 (t=7.24, P＜0.05), respectively. The linear correlation equation respectively was %GFR=0.05+0.80×%CTvol (F=125.48, P＜0.05) and %GFR=0.12+0.66×%CTt (F=52.36, P＜0.05). Conclusions Renal parenchymal volume and thickness by non-contrast spiral CT might be used as clinical practical parameters to evaluate the differential GFR for chronic obstructed kidneys. Renal parenchymal volume is more accurate than renal parenchymal thickness.