Objective　The authors present a retrospective analysis of 22 patients with primary central nervous system lymphoma(PCNSL) in order to provide a reasonable basis for the diagnosis and treatment of the disease. Methods　This report involves a clinicopathological study of 22 patients with histologically proven PCNSL,all diagnosed between January 1993 and May 2000. Univariate and multivariate regression analysis are used to determine prognostic factors significantly associated with an unfavorable or favorable impact on survival. Results　The cohort included 11 men and 11 women whose median age at diagnosis was 49.5 years. At the end point of follow-up, 11 died. The median survival time for the patients in study was 14.5 months. With univariate and multivariate regression analysis, prognostic factors significantly associated with survival included intrathecal injection(P=0.005) and local/diffuse neurological deficit(P=0.031). Conclusion　There continues to be a significantly increasing incidence of PCNSL. This survey throws light on the clinical and prognostic features of this uncommon disease. Through univariate and multivariate regression analysis the authors highly recommend a theraputic regime including surgery, intrathecal injection and chemotherapy, especially those drugs capable of passing blood-brain barrier, for example high dose MTX.

OBJECTIVE:To investigate the effect of STAT5 pathway inhibitor pimozide on the expressions of nitric oxide (NO)and nitric oxide synthetase(iNOS)in the model of mouse macrophage RAW264.7 inflammation induced by lipopolysaccha-ride (LPS). METHODS:RAW264.7 cells in logarithmic growth phase were divided into blank control group,drug control group (10μmol/L pimozide),model group(1μg/ml LPS)and the pimozide groups of low,middle and high doses(2.5,5 and 10μmol/L), where the corresponding cells were given pimozide 30 min before the administration of LPS,and then were cultured for 24 h. Griess method was used to determine the content of NO in the supernate of cell culture solutions of all groups,real-time quantita-tive polymerase chain reaction(RT-PCR)to determine iNOS mRNA expression,and Western blot method to determine the protein expression of iNOS and phosphorylated STAT5(p-STAT5). RESULTS:The content of NO,iNOS mRNA and protein expressions and the content of p-STAT5/STAT5 in the cells in the model group were higher than those in the blank control group,with statisti-cally difference (P<0.01). Compared to the model group,the pimozide groups of middle and high doses had lower content of NO,iNOS mRNA and protein expressions and the content of p-STAT5/STAT5 in the cells,with statistically difference(P<0.01 or P<0.05). CONCLUSIONS:STAT5 pathway inhibitor pimozide can inhibit the release of NO by inhibiting iNOS mRNA and pro-tein expressions in cells.

Aiming at the missing links in traditional models of ideological and political course in medical colleges of our country,we built the3+3+3model teaching paradigm,and selected students of medical laboratory and pharmaceutical profession as the research object to put this mode into practice.We issued questionnaires and test to evaluate teaching effect.The study showed that this model could make up for the loss of traditional teaching pattern,which verified the effectiveness and the significance of the teaching reform.The shortcomings as well as its future direction was also made clear.

Objective To revise the Chinese version of the National Institutes of Health-Chronic Prostatitis Symptom Index (CHN-NIH-CPSD), and evaluate its feasibility, reliability, validity and responsiveness. Methods The NIH-CPSI was translated into Chinese according to a standard methodology including forward-backward-forward technique. The CHN-NIH-CPSI was pre-tested in consecutive samples of 162 native-speaking Chinese chronic prostatitis(CP)patients. Ninety-five of 162 filled the index again on the same day and after 4-week therapy. Ninety-seven healthy men were included as evaluated. Results The recovery of the questionnaires was 100% and all the patients filled the index completely. The mean time to complete the questionnaire for the patient group was 5.2±2.4 (range 2 - 12) min. The split-half reliability was 0.82. For the overall index and each subscale, the test-retest reliability was 0.98, 0. 98, 0. 98, 0. 97, respectively(P＜0.01);and the Cronbach's α coefficient was 0. 61,0. 71, 0. 59, 0. 75, respectively. The confirmatory factor analysis showed good construct validity with a goodness of fit index of 0. 85 and a x2 of 124.67(P＜0. 01). Of all 162 patients, the scores of the overall index and each subscale were 23. 33±5.91. 8. 80±4.26, 5.30±2.82, 9. 23±1.90, respectively;and those of healthy controls were 1. 95±1.97, 0. 37±1.03, 0. 15±0.58, 1.42± 1.20,respectively. Of the 95 patients, the original scores were 23. 53±5.60, 9.21 ±4.04, 5.10±2.75,9.21 ±2.05, comparing with 19.47±6.36, 7.79±3.95, 3. 58±1.88, 8.11±2.50, the 4 weeks later scores. The group t-test and paired t-test showed good responsiveness. Conclusions The CHN-NIH-CPSI has high feasibility, reliability, validity and responsiveness for testing the patients with CP. It is suitable for Chinese-speaking patients and helpful for cross-cultural comparisons of men with CP in clinical and research settings.

OBJECTIVE:To provide reference for further formulation of the rational use of vancomycin. METHODS:Retro-spective analysis was conducted on the related information of discharged patients who intravenously used vancomycin from Jun. 2013 to Dec. 2014. RESULTS:178 patients were enrolled,with average age of 59.6 and 73.60% male,who were mainly with lung infectious(74.72%). Support examinations were sufficient before using of vancomycin. 66.29% patients were empirically giv-en vancomycin with pathogenic detection rate of 85.39%. 71.91% patients were conducted therapeutic drug monitoring with only 47.54% of first blood samples achieved the target range. CONCLUSIONS:Vancomycin application is generally rational in our hos-pital. However,issues like duration of empirical therapy,rational therapeutic monitoring,and individualized start dosing still need to be noticed.

Objective To study the expression profile of microRNA (miRNA) and the roles in pathogenesis of acute liver failure in mouse model. Methods Eighty-five BALB/c mice were divided into four groups: 40 in model group of acute liver failure were intraperitoneally injected with Dgalactosamine (D-GalN) and lipopolysaccharides (LPS); 20 in D-GalN group were injected with DGalN only; 20 in LPS group were injected with LPS only; 5 in control group were injected with saline.Liver histology of mouse was observed at hour 0, 5, 7 of injection, and sera and liver tissues were collected at hour 0, 1, 3, 5, 7, 9 of injection. Meanwhile, levels of inflammatory factors [tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6)] in serum and liver tissue were detected by realtime polymerase chain reaction (PCR). Lock nucleic acid (LNA)-based miRNA microarray technology was used to detect the expression profile of hepatic miRNA, and the expression of miRNA was verified by real time quantification-polymerase chain reaction (RT-PCR). Mouse macrophage Raw264.7 cells were induced by LPS in vitro and the expressions of miRNA at different time points were detected.The comparison of means among groups was analyzed using one way ANOVA and the correlation were analyzed by Pearson and Spearman correlation. Results Microarray analysis found that the expression profile of miRNA during the acute liver failure changed dramatically. There were 97 miRNA in model group changed significantly compared with control group (P＜0.01), including 21 up-regulated and 27down-regulated at hour 5 and 7 of injection. Furthermore, the expressions of miR 146a and miR-155were verified by RT-PCR and found they both increased progressively over time after injection.Correlation analysis showed that miR-155 was well correlated with both TNF-α and IL-6 expressions.It was further found that miR-146a and miR-155 were both up-regulated in activated Raw264.7 cells in vitro. Conclusions The expression profile of miRNA changes during acute liver failure in mouse model. Inflammation associated-miR-146a and miR-155 are both up-regulated significantly, which indicatcs that they may play an important regulatory role in pathogenesis of acute liver failurc.

To discover novel fluoroquinolone lead compounds as possible anti-infective or/and antitumor chemotherapies, combination principle of pharmacophore-based drug design, a series of novel tricyclic fluoroquinolone title compounds, [1,2,4]triazino[3,4-h][1,8]naphthyridine-8-one-7-carboxylic acid derivatives ( 5a-5p), were designed and synthesized with a fused [1,2,4]-triazine ring unit. Their structures were characterized by spectral data and elemental analysis and the in vitro antibacterial and anti-cell proliferation activities were also evaluated. The results showed that the titled compounds exhibited more significant inhibitory activities against drug-resistant bacteria (Methicillin-resistant Staphylococcus aureus and multi drug-resistant Escherichia coli strains) and three tested cancer cell lines (human hepatoma SMMC-7721, murine leukemia L1210 and human murine leukemia HL60 cells). Interestingly, SAR showed that compounds with electron-donating groups attached to benzene ring had stronger antibacterial activity than antitumor activity, but electron-withdrawing compounds displayed more potential antitumor activity than antibacterial activity, especially antitumor activity of nitro compounds was comparable to comparison doxorubicin. Thus, novel triazine-fused tricyclic fluoroquinolones as potent anti-infective or/and antitumor lead compounds are valuable to pay attention and for further development.
Animals ; Anti-Bacterial Agents ; chemical synthesis ; chemistry ; Antineoplastic Agents ; chemical synthesis ; chemistry ; Carboxylic Acids ; Carcinoma, Hepatocellular ; Cell Line ; Cell Proliferation ; Drug Design ; Escherichia coli ; drug effects ; Fluoroquinolones ; chemical synthesis ; chemistry ; HL-60 Cells ; Humans ; Leukemia L1210 ; Liver Neoplasms ; Methicillin-Resistant Staphylococcus aureus ; drug effects ; Mice ; Naphthyridines ; Triazines

Animals ; Brain-Derived Neurotrophic Factor ; metabolism ; Hypothalamus ; metabolism ; Male ; Physical Conditioning, Animal ; physiology ; Rats ; Rats, Sprague-Dawley

With thousands of sequenced 16 S rRNA genes available,and advancements in oligonucleotide microarray technology,the detection of microorganisms in microbial communities consisting of hundreds of species may be possible.The existing algorithms developed for sequence-specific probe design are not suitable for applications in large-scale bacteria detection due to the lack of coverage,flexibility and efficiency.Many other strategies developed for group-specific probe design focus on how to find a unique group-specific probe that can specifically detect all target sequences of a group.Unique group-specific probe for each group can not always be found.Hence,it is necessary to design non-unique probes.Each probe can specifically detect target sequences of a different subgroup.Combination of multiple probes can achieve higher coverage.However,it is a time-consuming task to evaluate all possible combinations.A feasible algorithm using relative entropy and genetic algorithm (GA) to design group-specific non-unique probes was presented.

Objective To investigate the clinical features and management of bile duct injury caused by laparoscopic cholecysteetomy by using harmonic scalpel (UHS-LC), and its prevention. Methods The clinical data of 1863 UHS-LC cases from April 2003 to February 2008 were retrospectively analyzed. There were 11 patients suffering from UHS-LC related iatrogenic bile duct injury including intraoperatively immediate recognized injuries in 9 cases, and postoperatively found injuries in 2 cases. For those patients in which bile duct injury was found during the UHS-LC procedure, the patient was converted to open surgery, the injury was repaired accordingly by end-to-end bile duet anastomosis or Roux-en-Y procedure. For the injuries found postoperatively (all two cases were of CBD perforation), CBD was sutured by second stage. Results All the 11 patients recovered well and no biliary stricture occurred during the follow up of 1-5 years. Conclusions While UHS-LC is suitable for most cases of choleeystectomy, it causes significant porcentage of bile duct injury (0. 6% ) in hands of unskillful surgeons. It is important to be on alert against iatrugenic bile duct injuries.