To analyze the correlation between fragmented QRS complexes( fQRS) and inflammation in 136 patients with acute coronary syndromes(ACS). Patients with fQRS had increased hs-CRP levels (P<0.01) in comparison to patients with non-fragmented QRS. The higher hs-CRP levels was,the more the number of leads in the fQRS on ECG was(P<0.01). When we performed multiple logistic regression analysis, fQRS was found to be related to in-creased hs-CRP levels [ OR:1.507 , 95% CI:1.172~1.936 , P<0.01 ] . fQRS was independently related to in-creased hs-CRP. fQRS that may result as an end effect of inflammation at cellular level can represent increased car-diac risk in patients with ACS.

Objective To evaluate the clinical value of ultrasonography in diagnosis of benignPHand malignant thyroid nodules by binary Logistic regression model.Methods A retrospective analysis of 240 cases of thyroid nodules confirmed by pathology after operation excision was conducted.173 nodules were benign as control group,67 nodules were malignant as observation group.The ultrasonic features of thyroid nodules were collected.The factor had statistics significance by x2 test between the two groups were analyzed by binary Logistic regression.A logistic regression model was created.The ROC curve was drawn and the area under the curve was calculated.Results There were statistically significant differences among boundary,aspect ratio,shape,internal echo,calcification,acoustic halo,cervical lymphadenectasis between the control group and observation group(x2=45.392,7.590,30.039,24.168,37.406,6.893,16.078,all P<0.01).And after Logistic regression analysis,six variables that entered the regression equation were boundary(P=0.000,OR=8.437),aspect ratio(P=0.000,OR=12.816),microcalcification of the nodules(P=0.000,OR=8.893),shape(P=0.000,OR=8.791),internal echoes(P=0.001,OR=8.313)and cervical lymphadenectasis(P=0.001,OR=6.891).The accuracy of the model was 90.7%(223/246)in predicting malignant nodules in thyroid.The area under the ROC curve was(0.904±0.031).Conclusion The binary Logistic regression can be used to differentiate malignant and benign thyroid nodules,and make a more accurate judgment for the nodules in thyroid.

The biologically active constituents in Gynostemma pentaphyllum are dammarane-type glycosides,called gypenosides.They are believed to be the highest contents of this herb,easy to obtain,and mainly active in anti-tumor,controlling the blood glucose,lipid-lowering,cardiovascular protection,etc.The saponins may change into sub-glucoside after hydrolysis,for the intemal acetal glucoside structure is vulnerable to acid,alkali,and enzyme degradation.Through searching the literatures in recent years,this paper summarized the chemical constituents in the hydrolyzed products of gypenosides,for providing references to discover novel and more active lead compounds.

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Objective To observe the characteristics and treatment of malignant peripheral nerve sheath tumor originated from neurofibromatosis and the outcome of the patients. Methods A case was reported and the related literatures were reviewed. Results and Conclusion Malignant peripheral nerve sheath tumor is a rare soft tissue malignancy, which is with highly invasion. There are some difficulties with the diagnosis and treatment, and the outcome is poor. Early diagnosis is very important for treatment.

Using Dachengqi Tang (DCQT) as a model, high performance liquid chromatography (HPLC) fingerprints were applied to optimize machine extracting process with the Box–Behnken experimental design. HPLC fingerprints were carried out to investigate the chemical ingredients of DCQT; synthetic weighing method based on analytic hierarchy process (AHP) and criteria importance through intercriteria correlation (CRITIC) was performed to calculate synthetic scores of fingerprints; using the mark ingredients contents and synthetic scores as indicators, the Box–Behnken design was carried out to optimize the process parameters of machine decocting process under high pressure for DCQT. Results of optimal process showed that the herb materials were soaked for 45 min and extracted with 9 folds volume of water in the decocting machine under the temperature of 140 1C till the pressure arrived at 0.25 MPa;then hot decoction was excreted to soak Dahuang and Mangxiao for 5 min. Finally, obtained solutions were mixed, filtrated and packed. It concluded that HPLC fingerprints combined with the Box–Behnken experimental design could be used to optimize extracting process of traditional Chinese medicine (TCM).

Objective To evaluate effects of daily average temperature on the occurrence of urticaria in Lanzhou city,and to analyze differences in the effects between different populations.Methods Time-series data on daily outpatient visits for urticaria between January 1,2007 and December 31,2013 were collected from the First Hospital of Lanzhou University and Lanzhou University Second Hospital.Daily meteorological data during this peroid were obtained from the Gansu Meteorological Bureau.Distributed lag non-linear models were used to analyze the association between daily average temperature and occurrence of urticaria,and the analysis was stratified by age and gender.Results The association between daily average temperature and daily number of outpatient visits for urticaria was nonlinear.Low temperature had significant lag effects on the daily number of outpatient visits for urticaria,with the maximum relative risk (RR) value (1.014 [95％ CI 1.000-1.023]) observed at 6 ℃ on lag day 18.Stratification analysis demonstrated that the effects of high temperature on the number of outpatient visits for urticaria were apparent on the day of exposure in age groups of 0-18 and 19-64 years,but decreased on the day of exposure in the age group ≥ 65 years.The effects of low temperature,which showed similar trends along with the increment of lag days in all groups,were relatively delayed and occurred 2 to 4 days after exposure.Conclusions Air temperature affects the occurrence of urticaria in Lanzhou city.Low temperature has evident lag effects on the occurrence of urticaria,while high temperature does not have.

Objective To investigate the possible role of oxidative stress in the protection of hydrogen sulfide during renal ischemia reperfusion.Methods Male Wistar rats were randomly divided into 3 groups: sham operation (Sham) group, renal ischemia reperfusion (IR) group subject to occlusion of left renal pedicle for 45 min then reperfusion for 24 h, and sodium hydrosulfide (NaHS) preconditioning group with continuous infusion of NaHS (450 nmol/min) by left renal artery for 10 min before ischemia reperfusion.Renal injuries were evaluated by PAS staining.The protein levels of NADPH oxidase (NOX) 4, NOX2 were analyzed by Western blotting.The reactive oxygen species (ROS) level of renal tissue was determined by dihydroethidium (DHE) staining assay.Renal superoxide dismutase (SOD), malonic dialdehyde (MDA) and Scr, BUN were evaluated by chromatometry assay.Cell apoptosis were evaluated by TdT-mediated dUTP nick end labeling (TUNEL) staining.Results Compared with Sham group, in IR group the renal NOX4 and NOX2 protein expressions, the existence of acute tubular necrosis and ROS expression were up-regulated (all P ＜ 0.01);MDA, Scr, and BUN were increased and SOD was decreased significantly in IR-treated kidney (all P ＜ 0.01);Moreover, more apoptotic cells presented in the risk zone of IR-treated kindey (P ＜ 0.01).The effects induced by IR were inhibited by NaHS.Compared to that in IR group, NaHS precondition reversed IR-induced damages of renal function and renal tissue, increased SOD activity and decreased MDA expression (all P ＜ 0.05), as well as reduced the expression of NOX4, NOX2 and ROS (all P ＜ 0.05).Moreover, NaHS precondition reduced apoptosis after IR (P ＜ 0.05).Conclusions NaHS alleviates renal ischemia reperfusion injury through inhibiting oxidative stress.Hydrogen sulfide can decrease ROS by inhibiting the activation of NOX, further inhibit the activation of NOD-like receptor, and alleviate kidney damage.

Objective To genotype Candida strains by random amplified polymorphic DNA(RAPD)technique,and to analyse the analogy of different Candida strains based on similarity coefficient.Methods Candida strains were isolated from vaginal secretion taken from patients with vulvovaginal can-didiasis by Sabouraud' s dextrose agar,C.albicans was differentiated from non-C.albicans strains by germ tube test,chlamydospore test and CHROMagar-Candida,and further identified by API20c Aux test Kits.The genomic DNA of45Candida isolates,including Candida albicans,Candida glabrata,Candida krusei,Candida parapsilosis and Candida tropicalis were amplified by RAPD,and DNA polymorphisms of inter-species and intraspecies were evaluated by using the DNA pattern-clustering of5primers.Results Thirty strains of C.albicans could be classified into7groups,and further divided into19subgroups,while15strains of non-C.albicans could be identified to species level.C.albicans isolates were related to each other with the similarity coefficients of more than90%,while different Candida species were connected to each other with the similarity coefficients of80%~90%.Conclusion C.albicans,which is the predominant pathogen of vulvovaginal candidiasis,could be classified into different genotypes by use of RAPD method.

Objective To investigate the in vitro anti-candidal activity of the essential oil of Illicium verum (EOIV) alone and in combination with fluconazole. Methods The minimum inhibitory concentration (MIC) and the minimum fungicidal concentration (MFC) of EOIV were determined in 130 clinically isolated Candida strains by NCCLS-M27-A microdilution method, and fluconazole was used as positive control. Meanwhile the checkerboard microdilution method was applied to assay the combined effect of EOIV and fluconazole in 18 candidal strains. Results For the 18 candidal strains the MICs and the MFCs of EOIV were 1 517.16 ?g/mL and 2 248.55 ?g/mL for C. albicans, 1 169.24 ?g/mL and 2 338.49 ?g/mL for C. glabrata, 1 320.03 ?g/mL and 1 741.79 ?g/mL for C. parapsilosis, 1 203.50 ?g/mL and 2 407.01 ?g/mL for C. tropicalis, 1 516.32 ?g/mL and 2 144.40 ?g/mL for C. krusei, and 1 072.64 ?g/mL and 2 144.40 ?g/mL for C. guilliermondii, respectively. Significant synergistic and additive effects were observed after the combination of EOIV with fluconazole, and no antagonism was found. There was no significant difference in the mean fractional inhibitory concentration index (FICI) between the fluconazole-susceptible and the fluconazole-resistant candidal strains (P = 0.671). Conclusion EOIV has antifungal effects on medically important Candida spp.. The combination of EOIV with fluconazole presents a synergistic and additive effects.