Objective To investigate the influence of the cardiac function on the prognosis in the patients with acute myocardial infarction(AM I) complicating multivessel disease (M VD ) treated by revascularization .Methods 152 cases of AM I complicating MVD treated by routine percutaneous coronary intervention (PCI) were divided into the normal group(94 cases ,LVEF≥50% ) and the lower group(58 cases ,LVEF<50% ) according to the left ventricular ejection fraction (LVEF) ,and the influence of the cardiac function on the prognosis was analyzed .Results The myocardial infarction history ,history of atrial fibrillation ,NYHA classifica-tion ,hs-CRP ,LADp ,ISR ,left ventricular structure and function had statistically significant difference between the two groups (P<0 .05) .The multivariate Logistic regrossion analysis showed that NYHA classification ,LVEF ,LVMI and LVEDd were the inde-pendent risk factors affecting the prognosis after PCI .Conclusion The reduced cardiac function is a risk factor affecting the prog-nosis of AMI complicating MVD treated by PCI ,the improvement of the cardiac function will be beneficial to the prognosis of the patients .

Objective To study the clinical efficacy of cell block yielded by ultrasound-guided fine needle aspiration in the early diagnosis of thyroid cancer and differential diagnosis of thyroid follicular tumor.Methods Cytological smears were performed in 864 thyroid nodules by ultrasound-guided fine needle aspiration.Then the residual specimens were made as cell blocks.Diagnosis was made by observation of the organization structure of the cell block.Cell block sections from 78 nodules with diagnosis of follicular tumors were applied to the detection of immunocytochemical staining for minichromosome maintenance protein (MCM2), growth arrest and DNA damage-induced nuclear protein 153 (GADD153), and Ki-67.Results Satisfaction rate of cytological smear combined with cell block specimen was 94.3 ％ (815/864) and accuracy rate of the diagnosis was 94.0％ (766/815), which were higher than in cytological smear group (P＜0.01).The false negative rate of cytological smear combined with cell block specimen was 16.6％ (41/247)in diagnosis of thyroid cancer.Positive rate of M CM2 and GADD153 in thyroid follicular neoplasia were lower than that of follicular carcinoma (P ＜ 0.01).There was no significant difference between thyroid follicular neoplasia and follicular carcinoma in regard to positive rate of Ki-67 (P ＞ 0.05).Conclusions The combination of ultrasound-guided fine needle aspiration-yielded cell block and molecular markers has great significance in early diagnosis of thyroid cancer and differentially diagnosis of thyroid follicular tumor.

On the background of internationalization for higher education,we have reformed the educational model for bachelor students majoring in public health laboratory science and quarantine.The exploration and pilot study are focused on educational principles,curriculum planning,teaching patterns,experiments and practice,and teachem training.The four teaching strategies have been firstly recommended as follows:laying the strongest foundation of chemistry,expanding quarantine-related curricula for increasing quarantine capability,making full use of strength of clinical laboratory medicine,emphasizing English application.The curricula structure is refined and more social supporting resources have been got to make globalization to cultivate more health inspection and quarantine talents with multidisciplinary knowledge,abilities and strong adaptability.

Objective To compare the efficacy of different therapies for idiopathic membranous nephropathy (IMN) patients, and to discuss their rationality. Methods The clinicopathological data and therapies of 76 patients with IMN in our hospital was retrospectively analyzed and reviewed, and the efficacy was followed up.According to the different therapies, 76 patients were divided into 4 groups, including symptomatic treatment group, glucocorticoid-alone group, immunosuppressant-alone group, and glucocorticoid in combination with immunosuppressant group (combination group). Comparison and analysis of the efficacy of the different therapies were made. Results (1) The incidence of nephrotic syndrome and 24-hour proteinuria of patients in symptomatic treatment group were significantly lower than those in glucocorticoid-alone group and combination group. (2) The remission rates of 4 groups were 56.3%,73.7%,66.7% and 78.9%, respectively. In general, no statistical differences were observed in the remission rates of patients among the symptomatic treatment group, glucocorticoid-alone group and combination group. The 2-year and 5-year renal survival rates were 89.2% and 79.3%, respectively. (3) Patients in glucocorticoid-alone group and combination group were divided into low-risk, moderate-risk and high-risk patients. No difference in remission rate was observed between the two therapies for low-risk and moderate-risk patients.But for high-risk patients,the remission rate in combination group was significantly higher than that in glucocorticoid-alone group.(4) Patients in glucocorticoid-alone group and combination group were divided into remission subgroup and non-remission subgroup. It showed that only estimated glomerular filtration rate (eGFR) between these two subgroups had statistical difference, and eGFR in non-remission subgroup was lower than that in the remission subgroup. Conclusions For high-risk patients,treatment with glucocorticoid combined with immunosuppressant may improve the remission rate of proteinuria significantly.Glomerular filtration rate before treatments is an important prognostic factor.

Objective To investigate the preventative effect of perioperative intervention to lower extremity deep venous thrombosis (DVT) after gynecologic surgery. Methods The 1062 patients, who received gynecologic surgery during 2007 June to 2008 June, were derided into intervention and nonintervention groups randomizely. According to the risk factors of DVT, the patients in intervention group were divided into 4 subgroups: low, mid, high and extremely high rise Each group had its own preventive measures. If patients had spontaneous pain, tenderness and swelling, positivity of Neuhof or Homan syndrome, and extension of one low extremity superficial vein, the low extremity color Doppler ultrasound would be carried out immediately. The ultrasound would also be routinely carried out in the high and extremely high risk groups in intervention group after 2 and 7 days after surgery. A prospective study was carried out investigating incidence of DVT and coagulation function perioperation. The vein blood samples were taken at in a week before surgery and 48 hours post-operation. Results The incidence of DVT of intervention group was 1.10% (6/546), and in nonintervention group, the incidence was 3.29% (17/ 516). There was significant difference between two groups (P<0.05). The incidence of DVT in extremely high risk subgroup was 21.05% (4/19), which was significantly higher than that of low(0), mid(0) and high risk groups[2.13% (2/94), P<0.05]. D-dimer, antithrombin-Ⅲ(AT-Ⅲ) post-operation were all higher than that pre-operation in the two groups, but there was no significant difference (P>0.05). The indexes of coagulation system, such as blood platelet count, prothrombin time (PT), active partial throraboplastin time (APTT), fibrinogen (Fbg), thrombin time (TT), tissue-plasminogen activator (t-PA), plasminogen activator inhibitor(PAI), were not significantly changed perioperation (P>0.05 in all pre-or post-operation indexes). Conclusions Perioperative intervention measurement according to different risk of DVT could cut down the incidence of DVT. DVT preventive intervention is suggested to high and extremely high risk people.

Objective To explore the effects of Dimethyloxalyl Glycine(DMOG)on isehemic acute renal failure(iARF)in mice and its relationship with activation of hypoxia inducible factor 1α(HIF-1α).Method Twenty five C57/BL male mice were divided into 5 groups randomly:control group,DMOG group,sham operation group,ischemia/reperfusion(I/R)group and DMOG pretreated group(DMOG+I/R).Ischemia/reperfusion injury was induced in mice by clamping both renal pedicles for 30 minutes.The expression of HIF-1α was determined by Western blot.Renal function was reflected by blood urea nitrogen(BUN)and serum creatinine(Scr).Morphologic changes were evaluated under light microscopy.Apoptosis in the kidney was detected by TUNEL staining.Expression of Vimentin,a marker of tubulointerstitial damage was detected by immunohistochemistry.Results The elvated levels of of BUN((65.8±2.6) vs (13.6±0.7),P＜0.01],and Scr[(229.5±11.2) vs (6.5±0.8),P＜0.01]andwere found morphological injury were induced by the ischemic insult in I/R group.Administration of DMOG dramatically improved renal function[BUN,(26.3±6.5)vs(65.8±2.6);Scr,(27.0±14.1)vs(229.5±11.2),P＜0.01]associated with amelioration of tubulointerstital damage.In the DMOG treated group,the protein level of HIF-1α in the kidney of mile was also up-regulated significantly.Conclusions The protection against iARF in mice by DMOG administration is mediated by activation of HIF-1α.

Objective To explore the effect of hypoxia inducible factor-1α silencing by siRNA on proliferation, apoptosis and necrosis of human renal proximal epithelial cell ( HK-2 )under hypoxia. Methods CoCl2 was used to mimic hypoxia, and siRNA technique was used to silence HIF-1α. HK-2 cells were divided into five groups, including normal culture group,hypoxia culture group, transfection reagent group, negative control group and HIF-1α siRNA group.MTT assay was used to detect the growth inhibition ratio of cells. TUNEL and caspase-3 quantity was used to detect apoptosis. LDH activity in supernatant was detected to evaluate cell necrosis.Real-time PCR and Western blotting were used to detect mRNA and protein of HIF-1α, HIF-2α,glucose transporter 1(Glut-1) and vascular endothelial growth factor (VEGF). Results (1) The transfection efficiency of siRNA was 95%-100%. Under normoxia, the efficiency of siRNA silencing HIF-1α gene reached to 70%, while under hypoxia, it was 97%. (2) The growth inhibition ratio of cells in HIF-1α siRNA group was significantly higher than that of other groups including hypoxia culture group, transfection reagent group and negative control group (all P＜0.05). No significant difference was found in apoptotic ratio of the other four groups except normal culture group (P＞0.05). The LDH level in HIF-1α siRNA group was significantly higher than that of hypoxia culture group, transfection reagent group and negative control group (P＜0.05). (3) The expression of HIF1α, Glut-1, VEGF mRNA and protein in HIF-1α siRNA group was significantly lower than that of hypoxia culture group, transfection reagent group and negative control group (P＜0.05). No significant difference was observed on the level of HIF-2α mRNA and protein in the other four groups except normal culture group (P＞0.05). Conclusion HIF-1α gene silencing can inhibit the mRNA and protein expression of Glut-1 and VEGF, and can aggravate growth inhibition and necrosis of HK-2 cells under hypoxia.

Objective To investigate the location and expression of hypoxia inducible factor (HIF) subunits in the remnant kidney of 5/6 nephrectomy rats. Methods Remnant kidneys were produced in adult male SD rats by 5/6 nephrectomy. The renal function and histopathological changes were evaluated at week 1, 2, 4, 6, 8 and 12 after operation. Tissues of remnant kidneys were collected to detect the location and expression of HIF-1α and HIF-2α by immunohistochemistry staining and Western blotting. The mRNA levels of HIF targeted genes vascular endothelial growth factor (VEGF) and heme oxygenase-1 (HO-1) were determined by RTPCR. Results (1) 5/6 nephrectomy rats underwent one week of acute renal failure at first[Scr (122.8±22.1) μmol/L] and then developed compensative chronic renal failure [(66.0±3.7)-(66.4±8.4) μmol/L], but the level of Scr increased quickly after week 6 [(66.4±8.4)-(127.8±22.7) μmol/L],concomitantly with progressive tubulointerstitial fibrosis in remnant kidney cortex. (2) In cortex, HIF-1α was expressed only in the atrophic and dilated tubular cells while HIF-2α was located in endothelial, interstitial fibroblasts, and vascular smooth muscle cells. The semiquantitative results of imunohistochemistry and Western blotting revealed that HIF-1α and HIF-2α were both gradually up-regulated during the early stage of remnant kidney, peaked at week 4 and 6, and then gradually down-regulated. (3) The mRNA levels of HIF targeted genes VEGF and HO-1 transiently peeked at week 4 and 6, and then decreased gradually. Conclusions The increased stabilization of HIF-αprotein and transcription of HIF targeted genes at the early stage of this model is a compensation reaction towards hypoxia. The mechanism of decreased expression of HIF-α at the end stage of chronic kidney disease deserves further investigation.

Objective To observe the inhibitory effect of pyridoxine hydrochloride (PN) combined with common chemotherapeutics on mice hepatoma cells H22 in vitro. Methods MTT assay was used to determine the effects of PN in combination with 10 different antineoplastic agents on H22 cells, and immuno-histochemistry was used to observe the distribution of PN in H22 cells and morphologic changes of the cells before and after PN treatment. Results After 24 hours incubation with 5 mmol/L PN, the treated cells expanded apparently with nucleus chipping. PN entered the tumor cell and was mainly condensed in cytoplasma and H22 cells were sensitive to PN. When administered concomitantly with chemotherapic agents, most of the combinations showed antagonistic effects while a few of the combinations were additive. For instance, doxorubicin (ADM) used in combination with PN inhibited cell proliferation with an IR value (IR=0.63) much lower than ADM alone (IR=0.71, P<0.01), and the CI value was less than 0.9, which indicated an antagonistic effect. However, PN in combination with ifosfamide (ICTX) showed additive effect (CI>0.9), and the IR value (IR=0.60) in combined group was higher than that (IR=0.40) in ICTX group (P<0.05). Conclusion PN treatment could increase the intracellular PLP level and result in growth inhibition and cell death, and combined administration of PN and ICTX might be a potential method to improve efficacy and to reduce toxic effects while a co-administration of PN and ADM should be avoided.

Objective To investigate the effects and outcomes of four procedures for hysterectomy. Method Retrospectively, we analyzed the clinical characteristics of 756 cases who respectively received hysterectomy by total abdominohysterectomy (TAH,260 cases), modified abdominohysterectomy (MAH, 180 cases), transvaginal hysterectomy (TVH, 106 cases), or laparoscopic assisted vaginal hysterectomy (LAVH)(210 cases) and compared their effects and outcomes. Results The average operation time of TAH(98 ?23)minutes, MAH(67?18)minutes, TVH (63?19)minutes and LAVH(99?35)minutes. The average operation time of LAVH and TAH groups was significantly longer than that of TVH and MAH groups (P