38.5 ℃) and urine leakage were similar between the two groups [8.7% (4/46) vs 3.7% (1/27),?2=0.112,P=0.737; and 0 (0/46) vs 3.7% (1/27),?2=0.074,P=0.786]. Conclusions Both MPCNL and RLUL are effective and safe for impacted upper ureteral calculi. RLUL,which results in less blood loss but longer operation time,is feasible in advanced hospitals.

Objective In human,both in vivo and in vitro,telomere shortening appears to be a major component of cell senescence and aging. However, gender specific human telomere shortening needs to be further characterized. Therefore our study is aimed at clarifying gender-dependent profiles of telomere shortening. Methods 123 peripheral blood samples were collected from healthy individuals of different ages. The mean telomeric restricted fragment (TRF) was measured using Southern Blotting with Dig-labeled probe. Results Distinguished dynamics profiles of telomere shortening were observed among different age groups. Conclusion The result indicates that there are gender specific dynamic profiles of telomere shortening. Therefore, the gender must be considered when an individual age is estimated by telomeric restricted fragment length assay.

Objective To investigate the effect of sevoflurane postconditioning on the renal injury induced by hind limb ischemia-reperfusion (I/R) in rats.Methods Twenty-four healthy male Sprague-Dawley rats,weighing 200-250 g,were randomly assigned into 3 groups (n =8 each):sham operation group (group S),group I/R and sevoflurane group (group Spo).Limb ischemia was induced by occlusion of bilateral hind limbs for 4 h followed by 6 h reperfusion.In group Spo,sevoflurane was inhaled for 6 h at the end-tidal concentration of 2.5 ％ before reperfusion,while pure oxygen was inhaled instead of sevoflurane in groups S and I/R.Blood samples were taken from the inferior vena cava at 6 h of reperfusion to determine the serum blood urea nitrogen (BUN) and creatinine (Cr) concentrations.The rats were then sacrificed and the kidney was removed for determination of superoxide dismutase (SOD) activity and contents of malondialdehyde (MDA),tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) and for microscopic examination.Results The levels of BUN,Cr,MDA,TNF-α and IL-6 were significantly higher,the SOD content was significantly lower (P ＜ 0.05),and the pathological damage was severer in groups I/R and Spo than in group S.Compared with group I/R,the levels of BUN,Cr,MDA,TNF-α and IL-6 were significantly decreased,the SOD content was significantly increased (P ＜ 0.05),and the pathological damage was attenuated in group S.Conclusion Sevoflurane postconditioning can reduce the renal injury induced by hind limb I/R in rats,and the reduction of oxygen radical release and inhibition of inflammatory response may be involved in the mechanism.

Objective To design a multi-functional portable bento for single field soldier by reducing the health load of the army and improving the fighting capacity.Methods It is designed by selecting the suitable material and integrating the minimal volume with function.Results The bento can be designed on light material,small in size and used in water or waterless condition.Conclusion The bento is fit for the field army request to carry picnic tool and can improve the combat effectiveness of the force.

In order to make students have integrative qualities and reform the shortage of former teaching methods in the food microbiology experiment,a new experiment teaching system was established,introducina the integrative and innovative experiment to the students gradually.The reformation of experiment in food microbiology has trained the students well and improved their special skills.Most important of all,it can offer them a chance to realize their own ideas.The students can design an innovative and integrative experiment to carry out their originalities.Good effects have been made since this system is very helpful to improve their consciousness of innovation and integrative abilities in doing experiments.

Objective To investigate the effects of Annexin-A1 ( Anxa1 ) gene silencing induced by siRNA on the growth and migration of microglial BV-2 cells and its possible mechanisms.Methods A synthesized siRNA duplex targeting Anxa1 gene was transfected into BV-2 cells.The efficiency of siRNA-in-duced Anxa1 gene silencing was evaluated on both mRNA and protein levels by using reverse-transcription PCR and Western blot assay.MTT assay was performed to measure the proliferation of BV-2 cells with si-lenced expression of Anxa1 gene.Flow cytometry with Annexin V-FITC/PI double staining was used to de-tect the apoptosis rate of BV-2 cells.Transwell chambers were used to analyze the effects of siRNA-induced Anxa1 gene silencing on the migration of BV-2 cells.Western blot assay was performed to detect the expres-sion of signaling proteins related to cell cycle and migration.Results Compared with the siRNA negative control ( siRNA-NC) group, the inhibitory rates of siRNA-induced Anxa1 gene silencing on the proliferation of BV-2 cells were significantly increased at the time points of 24 h, 48 h and 72 h after intervention [(16.9 ±2.1)%, (23.1±3.6)%and (42.4±1.7)%vs (1.35±0.5)%, (2.06±0.7)% and (8.65±0.9)%, P<0.05 ].The apoptosis rate of BV-2 cells transfected with Anxa1 siRNA was (18.4±2.1)%, which was significantly elevated as compared with that of the siRNA-NC group (5.2±0.3)%and control group (4.3±0.2)%.Cell migration of the Anxa1 siRNA transfected BV-2 cells was inhibited remarkably at 48 h as com-pared with that of the siRNA-NC group (28.7±5.2 vs 173.4±11.4, P<0.01).Moreover, the suppressed expression of Cyclin D1 protein and activation of p38 and JNK signaling pathways were induced by silenced expression of Anxa1 gene in BV-2 cells.Conclusion The growth and migration of BV-2 cells were signifi-cantly inhibited by silencing the expression of Anxa1 gene with siRNA, the possible mechanisms might be associated with the suppressed expression of Cyclin D1protein and the activation of p38 and JNK signaling pathways.

Hemoperfusion ; Humans ; Ivermectin ; analogs & derivatives ; poisoning ; Liver Cirrhosis ; complications ; therapy ; Male ; Middle Aged

AIM:To study the potential pathological role of abnormal expression of endogenous angiopoietins in progressive glomerulosclerosis.METHODS:80 male Wistar rats were randomly allocated into sham operation group(sham,n=25),unilateral nephrectomy group(UNx,n=25)and UNx+daunorubicin(DRB)group(n=30).The rats in DRB group were intravenously injected with DRB(5 mg/kg)on the seventh and the fourteenth day respectively after excising one kidney.Then,at week 1,2,4,6 and 8,5,male Wistar rats from each group were taken randomly for determining 24 h urinary protein quantitative measurement(24hUPQ),BUN,Scr,and the kidneys were examined by electronic microscope,PAS staining,immunohistochemical staining and in situ hybridization histochemistry.RESULTS:There was a trend towards an increase respectively in levels of 24hUPQ,Bun,Scr,GSI in DRB from week 2 to week 8.Electronic microscope revealed that podocyte injury presented in DRB group.Expression of Ang1 mRNA and protein in glomerulus in DRB group decreased,while expression of Ang2 protein in glomeruli in DRB group increased.In DRB group,expression of Ang1 protein had a negative correlation with 24hUPQ,BUN,Scr,GSI,expression of Ang2 protein and CoIV protein.Expression of Ang2 protein had a positive correlation with 24hUPQ,BUN,Scr,GSI,expression of CoIV protein.CONCLUSION:Podocyte injury may lead to glomeruli abnormally express angiopoietins.A decrease in expression of Ang1,and upregulation in expression of Ang2 may facilitate progressive glomerulosclerosis in the rat.

Objective To compare the prognosis of sentinel node-positive breast cancer patients forgoing axillary lymph node dissection.Methods A systematic literature search (Medline,Embase,Cochrane Library)ended in April 2014 was performed to identify all eligible articles.Two reviewers independently screened and extracted data.RevMan5 was used for statistical analysis.Results A total of 1026 abstracts were retrieved and 18 clinical controlled studies finally included,the total number of patients were 47 894,7389 had micrometastases in sentinel lymph node,35 217 had macrometastases in sentinel lymph node and 5288 had positive sentinel lymph node regardless of micrometastases or macrometastases.For patients with MIC,the 5-year axillary recurrence rate,5-year disease free survival and 5-year overall survival had no significant difference between patients who only received sentinel lymph node biopsy and patients who received further axillary lymph node dissection,(OR =1.78;95％ CI:0.72-4.39,P=0.21),(OR =0.76,95％CI:0.56-1.04,P=0.08),(OR=0.77,95％CI:0.43-1.40,P=0.39).For patients with MAC,the 5-year axillary recurrence rate had no significant difference between patients who only received sentinel lymph node biopsy and patients who received further axillary lymph node dissection,(OR =1.21;95％ CI:O.76-1.91,P =0.42).For patients with positive sentinel lymph node regardless of micrometastases or macrometastases,the 5-year axillary recurrence rate and 5-year overall survival had no significant difference between patients who only received sentinel lymph node biopsy and patients who received further axillary lymph node dissection,(OR =1.29;95％ CI:0.92-1.80,P =0.14),(OR =0.96,95％ CI:0.64-1.45,P =0.84).Conclusions Among patients with limited positive SLN of breast cancer,patients forgoing ALND compared with ALND did not have obvious affect on long-term survival.

Objective To preliminarily understand and evaluate the fertility ability of male infertility patients by analyzing the semen routine testing results to assist further clinical diagnosis and treatment .Methods 7 586 cases of semen routine detection re‐sults were performed the retrospective analysis and statistics by classification according to the indexes of semen volume ,pH value , liquefaction time ,sperm density ,sperm activity and sperm deformation rate .Results Among 7 586 cases of semen routine examina‐tion ,there were 1 450 cases(19 .1% ) of semen volume less than 2 .0 mL ;1 372 cases (18 .1% ) of pH < 7 .2 ;2 740 cases(36 .1% ) of liquefaction time > 60 min ;989 cases(13 .0% ) of sperm density lower than 20 × 106 /mL ;3 719 cases(49 .0% ) of sperm activity grade a + b less than 50% ;3 431 cases(45 .2% ) of sperm deformation rate less than 15% ;141 cases(1 .9% ) of aspermatism ;1 119 cases (14 .8% ) had no abnormality in each index .Conclusion Semen liquefaction ,sperm motility and sperm deformation rate are the indexes with the highest abnormal rate in the semen routine detection ;the semen routine detection provides the important exper‐imental data for clinical diagnosis and treatment of male infertility ,the objective and correct analysis of the detection result is of great significance to the judgment of male fertility .