Objective To investigate the effect of adenosine on rats with acute renal failure(ARF) resulting from ischemia-reperfusion(IR).Methods The model of renal IR injury rats was induced by nipping bilateral renal pedicels of rats with non-traumatic forceps for 40 minutes.The first adenosine group was given adenosine 10 mg/kg intraabdominally at 2 hours before IR.The second adenosine group was given the same adenosine at 40 minutes after IR.Serum creatinine(Scr) levels,the proportion of apoptosis of renal tubular cells(RTCs) and the pathological changes of renal tissue were observed separately in every group at 2,6,12 hours after IR.Results 1.At 12 hours after IR,in IR group Scr levels and apoptosis of RTCs count were(198.56?13.35) ?mol/L and 26.50?2.07,which were increased significantly compared with sham group.In the first and second adenosine groups,they were(113.85?(12.90) ?mol/L),14.67?3.44 and(218.79?37.65) ?mol/L,20.83?5.27,respectively,and all of them were higher than those in sham group(all P0.05).Conclusions Adenosine which is given to rats with IR before IR may be an effective pharmacological agent for prevention and treatment of renal IR injury.The mechanism may be relevant to saving energy and reducing cellular apoptosis.

0.05),but correlated with age and invasion depth of tumor(P

OBJECTIVE:To explore the distribution and drug resistance of pathogens in patients with hospital-acquired pneumo-nia(HAP)from neurosurgery department of the First Affiliated Hospital of Xinjiang Medical University(called“our hospital”for short),so as to provide reference for clinical use of antibiotics in the clinic. METHODS:The pathogen culture and drug sensitivity test of 652 HAP patients were analyzed retrospectively in neurosurgery department of our hospital during May 2011 to May 2015. RESULTS:Of 652 cases,pathogens were detected in 608 cases,with positive rate of 93.3%. Among 608 strains of pathogen, there were 443 strains of Gram-negative bacteria(71.2%)as Klebsiella pneumonia,Pseudomonas aeruginosa and Escherichia co-li;108 strains of Gram-positive bacteria (17.8%) as Staphylococcus aureus and Streptococcus pneumoniae;67 strains of fungus (11.0%)as Candida albicans. There were 67 strains of ESBLs K. pneumonia,43 strains of ESBLs E. coli and 8 strains of methicil-lin-resistant coagulase negative Staphylococci. The drugs sensitive to Gram-negative bacteria included imipenem,piperacillin sodi-um and tazobactam sodium,cefepime,etc.;those sensitive to Gram-positive bacteria included vancomycin,etc. CONCLUSIONS:Main pathogen of HAP patients in neurosurgery department of our hospital are Gram-negative bacteria,and they were highly resis-tant to antibiotics;the highly sensitive drugs to HAP include imipenem and vancomycin,etc.;the antibiotics should be used ratio-nally according to etiological analysis.

Objective To observe the characteristics of different blood perfusion in renal cell carcinoma by contrast-enhanced ultrasound and prove its diagnostic value.Methods One hundred and six cases of renal cell carcinoma confirmed by patholog were involved,and were divided into three groups:clear cell carcinoma group,papillary cell carcinoma group,and chromophobe cell carcinoma group.Their imaging characteristics were observed.Time-intensity curve was analyzed by using QLab software.The difference of time of beginning to increase (△AT =ATrenal cell carcinoma-AT surrounding normal renal parenchyma) and the difference of peak intensity(△PI =PIrenal cell carcinoma-PIsurrounding normal renal parenhyma) in three groups were compared.Results △AT and △PI in clear cell carcinoma group were different from those in the papillary cell carcinoma group and chromophobe cell carcinoma group (P ＜0.05).The difference between papillary carcinoma group and chromophobe carcinoma group was not significant (P ＞0.05).Contrast agent filled very fast in most clear cell carcinomas,filled speed and time to peak were early or synchronously with the surrounding renal tissue.Compared with renal papillary carcinoma and chromophobe carcinoma group,clear cell carcinoma group showed a high peak intensity and part of the surroundings appeared high increasing signs,like of a ring.Contrast agents filled slow in papillary carcinomas group and chromophobe carcinomas group,and the peak intensities were low.Conclasions Contrast enhanced ultrasound can provide important clinical value for the diagnosis of renal cell carcinoma and subtype diagnosis.

ObjectiveTo study the proper braking and bed rest time for patients with TACE operation. Methods Divided 236 patients with TACE operation into the control group (100 cases) and the experimental group (136 cases) randomly. In the control group, the braking time and the bed rest time was 8 hours and 24 hours respectively, while in the experimental group, they were 5 hours and 12 hours respectively.Compared incidence rate of complication between the 2 groups. Results The differences of complications which relevant to puncture between the two groups were not significant,P值=0.419, while the complications which irrelevant to the puncture between the two groups were significant,P

Objective To study a minimally invasive surgical procedure for coronary artery bypass grafting (GABG). Methods 23 patients, aged from 45 to 73 years old, undervent off-pump coronary artery bypass grafting (OPCABG) according to Octopus procedure from December 1999 to Auguest 2001. In the present study , more than 3 vessels were involved in 19 patients; 2 vessels involved in 3 cases and 1 vessel involved in one case. The grafted arteries included left anterior descending branch (LAD)(23); circumflex(CX)(15); right coronary artery(RCA)(14); ramus intermedius(RUM)(8); and posterior descending artery(PDA) (8). The types of grafts were left internal mammary artery (LIMA)(20) and saphenous vein grafts(SVG)(48). Results None of the patients was managed by means of cardiopulmonary bypass. All survived without angina pectoris. MRI showed that all the conduits were patent postoperatively. Conclusions OPCABG by Octopus procedure can be used in multiple vessel coronary bypass including CX and PDA. The patency rate is similar to that of the conventional technique. The mortality rate and occurrence of complications is low compared with those of the conventional technique . In addition, medical cost is lower. So This procedure is both safe and cost-effective, and is of value in clinical practice.

Objective To observe the action of lowering blood fat of Agaricus blazei Murill ?-6 polyunsaturated fatty acid(?-6APFA) on hyperlipemia rats and mice.Methods Sixty rats were randomly divided into control group,model group,natural soybean phospholipids capsule(NSPC)0.70 g?kg~(-1) group,?-6APFA 0.28,(0.14,)0.07 g?kg~(-1) groups(n=10).The other groups except control group were given high-fat diets for 14 d,on the fourteenth day the rats were administered orally,the control group and model group were administered distilled water 10 mL?kg~(-1) at the same volume,14 days after continuous administration,rats were anesthetized,the blood were extracted from abdominal artery,T-CHO,TG,HDL-C,LDL-C in sera were determined. At the same time,the activity of SOD in liver and the content of MDA were determined,the fat accumulated coefficient was calculated.72 male mice were randomly divided into control group,model group,NSPC 1.0 g?kg~(-1) group,(?-6APFA)0.4,0.2,0.1 g?kg~(-1) groups(n=12).Mice were administered continuously,16 h before the last administration,except control group,the mice in the other groups were injected 75% yolk physiological salt solution 0.5 mL through the abdominal cavity,and began to starve,1 h after the last administration,blood was extracted from eyeball,serum T-CHO and TG were determined.Results Compared with model group,T-CHO and TG in rats treated with NSPC 0.70 g?kg~(-1) and ?-6APFA 0.28 g?kg~(-1) all reduced and HDL-C raised obviously(P0.01).)Compared with model mice,T-CHO and TG in acute hyperlipemia mice treated with NSPC 1.0 g?kg~(-1) and ?-6APFA0.4,0.2 g?kg~(-1) reduced obviously(P

Objective To study the inductive effect of Cortex Periplocae extract(CPE) on apoptosis of human gastric cancer cells BGC-823 and its mechanism.Methods The cell morphology and super-microstructural changes of apoptosis were analysed by Giemsa staining and electric microscope,respectively.The BGC-823 apoptosis ratio,cell cycles,and changes of apoptosis in DNA level were studied by Flow Cytometry and agarose gel electrophoresis.The genes mRNA and protein expression of apoptosis-related genes bcl-2,bax,and survivin were studied by RT-PCR and immunology cell chemistry method.Results After treatment with CPE,BGC-823 cells showed some typical morphologic features and super-microstructural changes of apoptosis.DNA agarose gel electrophoresis showed characteristic "DNA ladder" pattern.Most BGC-823 cells were arrested at G_2/M phase.Some typical subdiploid peaks before G_0/G_1 phase were observed.The apoptotic rate of BGC-823 was 18.9% after 250 ?g/mL CPE treated for 48 h.The gene mRNA and protein expression of bcl-2 and survivin were inhibited by CPE,whereas that of bax was up-regulated.CPE could enhance the life span of S_(180) bearing mice in a dose-dependent manner.Conclusion(CPE can) inhibit the tumor growth by arresting the BGC-823 cell cycle at G_2/M phase and inducing BGC-823 apoptosis.Its mechanism is related to the inhibition on gene mRNA and protein expression of bcl-2 and survivin,and enhancement of those of bax.

Objective To investigate the relationship between serum soluble B7-H4(sB7-H4) expression and clinical pathological characteristics in patients with non small cell lung cancer(NSCLC),and its clinical significance.Methods 65 patients with NSCLC were selected as NSCLC group,58 patients with benign lung disease were selected as the benign lung disease group,another 45 healthy people of the same period in our hospital outpatient physical examination were selected as healthy control group.By enzyme-linked immunosorbent assay(ELISA) method,serum sB7-H4 and vascular endothelial growth factor(VEGF) were detected.The serum embryonic antigen(CEA) and cancer antigen-125(CA125) were detected by chemiluminescence method.The relationship between sB7-H4 and NSCLC and other pathological features,and the relationship of the tumor markers CEA,CA125,VEGF were analyzed.Results The level of serum sB7-H4 of the NSCLC group was (59.47±8.76)μg/L,which was significantly higher than (17.38±3.72)μg/L of the lung benign lesion group and (15.26±3.17)μg/L of the health control group,the differences were statistically significant(t=18.276,19.872,all P<0.01).The serum CEA,CA125,VEGF levels of the NSCLC group were higher than those of the lung benign lesion group and healthy control group,the differences were statistically significant(t=9.447,14.883,33.467;t=11.374,15.137,37.759,all P<0.01).The level of serum sB7-H4 of the NSCLC group after treatment was (35.47±7.46)μg/L,the difference was statistically significant compared with before treatment[(59.47±8.76)μg/L](t=4.372,P<0.01).The serum sB7-H4 level was correlated with NSCLC tissue differentiation degree,clinical stage,whether with lymph node metastasis (F=3.786,t=4.821,4.172,all P<0.01).In NSCLC patients,sB7-H4 level was positively correlated with serum CEA,CA125 and VEGF levels (r=0.643,0.727,0.586,all P<0.05).Conclusion The sB7-H4 may be involved in the occurrence and development of NSCLC,and it is expected to become a new target for NSCLC diagnosis and treatment.