From the development situation of chinese intemet and the need of college students' growth,this paper advanced six key problems on promoting university students' online ideological and political work.

The study aimed to establish a population pharmacokinetic/pharmacodynamic (PPK/PD) model of warfarin. PCR-RFLP technique was used to genotype the CYP2C9 and VKORC1 polymorphisms of 73 patients. RP-HPLC-UV method was used to determine the 190 plasma concentrations of warfarin. Application of NONMEM, the clinical information and 263 international normalized ratio (INR) monitoring data were used to investigate the effect of genetic, physiological, pathological factors, other medication on clearance and anticoagulant response. The final model of warfarin PPK/PD was described as follows: CL = θCL · (WT/60)θWT · θCYP · eηCL (if CYP2C9*1/*1, θCYP = 1; if *1/*3, θCYP = 0.708); EC50 = θEC50 · θVKOR · eηEC50 (if VKORC1- 1639AA, θVKOR = 1; if GA, θVKOR = 2.01; V = θV; K(E0) = θK(E0); Emax = θEmax; E0 = θE0 · eηE0. Among them, the body weight (WT), CYP2C9 and VKORC1 genotype had conspicuous effect on warfarin PK/PD parameters. The goodness diagnosis, Bootstrap, NPDE verification showed that the final model was stable, effective and predictable. It may provide a reference for opitimizing the dose regimen of warfarin.
Anticoagulants ; pharmacology ; Body Weight ; Cytochrome P-450 CYP2C9 ; genetics ; Genotype ; Humans ; International Normalized Ratio ; Nonlinear Dynamics ; Polymorphism, Genetic ; Vitamin K Epoxide Reductases ; genetics ; Warfarin ; pharmacokinetics

Amoxicillin ; adverse effects ; Anti-Bacterial Agents ; adverse effects ; Child ; Humans ; Male ; Renal Insufficiency ; chemically induced

Objective To evaluate the feasibility, safety, and outcome of hepatectomy by hand-assisted laparoscopic surgery (Lapdisc system) in patients with hepatic hemangioma. Methods Eight patients with hepatic hemangioma underwent hand-assisted laparoscopic hepatectomy. Procedures included introduction of Lapdisc system, isolation of the liver from the ligments, occlusion of the hepatic porta, dissection of the hepatic parenchyma by harmonic scaple and removal of the samples. ResultsIn all patients, the hand-assisted laparoscopic hepatectomy were successfully performed. The operation time was(196.3?81.2)min. Blood loss was (307.5?224.7)ml, and postoperative hospital stay was (7.9?2.9)d. There was no significant postoperative complication such as bile leakage, bleeding or infection. ConclusionsLapdisc system could be safely used for hepatectomy in cases of hepatic hemangioma.

AIM: To determine whether Jiunaoning injection has protective effects on oxygen/glucose-deprived and reperfusion injury-induced neurons. METHODS: Various concentrations of Jiunaoning injection (0.5-5 mL/L) were used to observe their effects on cultured rat cortical neurons induced by oxygen/glucose-deprived and reperfusion injury in various time points. The neuronal metabolic rate and viability were assessed by using 3-(4,5-dimethylthiazol)-2, 5-diphenyl-tetra zoliumbromide (MTT) and lactate dehydrogenase (LDH) assay. RESULTS: Jiunaoning injection enhanced the neuronal metabolic rate in a dose-dependent manner in the range from 0.5 to 5 mL/L, and Jiunaoning injection (1.5-2.5 mL/L) enhanced the neuronal metabolic rate, decreased the cell death rate and depressed LDH leak rate significantly. CONCLUSION: Jiunaoning injection has an affirmative protective effect on oxygen/glucose-deprived and reperfusion-induced neuronal injury.

Fatty acids of Ralstonia solanacearum cultured under different temperatures, times, pH values and cultural media were detected by using gas chromatography (GC) method. Rs-J.1.4-010704-01v, a viru- lent strain of R. solanacearum isolated from ginger was chosen for the experiment. The results showed that the kind of fatty acid of Rs-J.1.4-010704-01v fluctuated from 14 to 33. The contents of its three plentiful fatty acids, C16:1?7c/C15:0 ISO 2OH, C16:0 and C18:1?7c (with retain times of 10.644, 10.950 and 14.177 min, respectively), also varied in a range of 55.66% to 75.69%. The diversification of the bacterium’s fatty acids at various cultural conditions was clustered into four groups by cluster analysis, according to the kinds and percentage contents of the fatty acids detected. The pathogenicities of Rs-J.1.4-010704-01v under 20?C and 25?C were deduced to be mid-virulent, with C16:0 less than C16:1?7c/C15:0 ISO 2OH. The bac- terium showed as a virulent strain under the other cultural conditions including 30?C~40?C, 24 h~96 h, pH 5~9 and four cultural media (LB、NA、TTC and TSB), with C16:0 more than C16:1?7c/C15:0 ISO 2OH.However, the difference between C16:0 and C16:1?7c/C15:0 ISO 2OH raised significantly from 2.35 to 13.23 under 40?C and 48 h~96 h. Meanwhile, the kind of fatty acid increased more than 30 as the cultural time increased. It was concluded that temperature and cultural time had more significant effects on the fatty acid composition of R. solanacearum than pH value and cultural medium.

Objective To confirm that rat bone marrow mesenchymal stem cells (MSC) transfected with nerve growth factor (NGF) gene in the bladder tissue of diabetic rats bladder tissues can survive and stably express NGF. Methods A diabetic rat model was constructed. The BrdU-labelled MSC transfected with NGF gene were transplanted into the diabetic rats bladder tissues. BrdUlabelled immunohistochemistry was used to observe the growth of MSC transfected with NGF gene in the diabetic rats bladder tissues. The expression of NGF mRNA and protein were checked by RT-PCR and ELISA. Results A diabetic rat model was successfully built by a single intraperitoneal injectionof STZ. The blood glucose was still high after 8 weeks. NGF gene modified MSC could be detected in the bladder of diabetic rats by BrdU-labelled immunohistochemistry. The concentration of NGF in the control group, disease group and treatment group were ( 114 ± 3), ( 70 ± 2), ( 110 ± 2) pg/ml by ELISA and mRNA quantity by RT-PCR were 0. 183±0. 004, 0. 032±0. 139, 0. 130±0. 165, respectively. Compared with the control group, the expression of NGF gene was decreased (P＜0. 05) in the incidence group. The expression of NGF gene was increased (P＜0. 05) in the treatment group compared with the disease group. Conclusions The NGF gene-modified MSC could survive in diabetic rats bladder tissues. The NGF gene in MSC could stably express in diabetic rats bladder tissues.

Objective To discover radioresistance-associated proteins by performing comparative proteomic analysis on nasopharyngeal carcinoma cell lines.Methods The total proteins were extracted from radioresistant human nasopharyngeal carcinoma cell line CNE-2R and its parental cell line CNE-2,respectively.These proteins were separated by high quality two-dimensional polyacrylamide gel electrophoresis (2-DE) and then the 2-DE profiles were screened for differentially expressed protein spots by the Image Master 5.0 software.Those spots were identified by a matrix-assisted laser desorption/ionization time-of-flight tandem mass spectrometry.Results 32 significantly differentially expressed protein spots were screened in two different radiosensitivity cell lines and 11 proteins were identified by tandem mass spectrometry,among which 3 proteins were up-regulated in radioresistant human nasopharyngcal carcinoma cell line CNE-2R and the other 8 proteins were down-regulated.Conclusions The differentially expressed proteins of nasopharyegeal carcinoma cells with different radiosensitivity were mainly involved in apoptosis regulation,DNA damage and repair,cell cycle regulation,RNA transcription,cell signaling,cytoskeleton formation and radiation stress responses.

Objective To evaluate the value of differential diagnosis between benign and malignant thyroid lesions by susceptibility weighted imaging(SWI).Methods 53 patients with 20 malignant thyroid lesions and 71 benign thyroid lesions confirmed by surgery and pathology were analyzed retrospectively.All cases received conventional MRI and SWI preoperatively.Location,volume,SWI parameters including signal to noise ratio(SNR),contrast noise ratio(CNR)and intratumor susceptibility hypointensity (ITSHIA)datas in benign and malignant lesions were compared and analyzed.Results There was no statistical significance between benign and malignant thyroid lesions in the location,volume,SNR and CNR(χ2 or t =0.014,0.286,0.927,1.169;P =0.907,0.778,0.368,0.259 respectively).The maximum diameter (1.90 mm±0.32 mm),degree of maximum diameter(1.33±0.47),frequence(1.40±0.20)and area ratio(1.09±0.28)for benign thyroid lesions were less than those for malignant lesions(3.39 mm±0.79 mm,2.25±0.44,1.40±0.68,1.70±0.47)respectively (t or Z =12.629,5.788,3.41 5,5.795;P =0.000,0.000,0.001,0.000).Conclusion SWI semiquantitative assessment of pathlogical vascularity is useful in differential diagnosis of benign and malignant thyroid lesions.

Objective To investigate the value of diffusion weighted imaging (DWI)in identification of different molecular sub-types for breast cancer classifications.Methods All patients with breast cancer were divided into four subtypes groups by immuno-histochemistry results including Luminal A subtype,Luminal B subtype,HER2-over expressing (HER2-OE)subtype,and triple negative breast cancer (TNBC),respectively.The means of maximum,average,and minimum ADC of the lesions in all patients were recorded.The analysis of ANOVA and least significant difference test (LSD-t )were used for the statistical evaluation.Results There were significant differences in maximum ADC,average ADC,and minimum ADC among Luminal A subtype (n=21),Lu-minal B subtype (n=22),HER2-OE subtype (n=1 7)and TNBC subtype (n=12)groups (P =0.025,0.039 and 0.041,respec-tively).However,paired comparison in mean of maximum ADC,average ADC and minimum ADC by LSD-t multiple comparisons among Luminal A,Luminal B,HER2-OE and TNBC respectively were not significantly different.Conclusion DWI may be difficult to discriminate the molecular subtypes of breast cancer classification before surgery or biopsy.