OBJECTIVE To investigate the affinity of 20 Klebsiella pneumoniae(KPN)strains.METHODS Twenty nine genes were detected from 20 KPN strains.They were sixteen kinds of beta-lactamase genes,six kinds of aminoglycosides modification enzyme genes,chlorhexidine-sulphanilamide drug resistance genes,TMP drug resistance genes;three kinds of integrase genes and Tn21/Tn501 transposon genetic mark were detected.And they were used as molecule marker for the sample clustering analysis and assay of the detected results.RESULTS The beta-lactamase genes,aminoglycosides modification enzyme genes,chlorhexidine-sulphanilamide drug resistance gene,TMP drug resistance gene,integrase genes and Tn21/Tn501 transposon genetic mark were all detectable.Clone transmission was shown through the sample clustering analysis.CONCLUSIONS The resistance to the beta-lactam and aminoglycoside antibiotics of the 20 KPN strains is intimately correlated to the generation of beta-lactamases and amino glycosides modification enzymes,which could be clone transmitted.

Animals ; Disease Models, Animal ; Integrative Medicine

Background and purpose:In recent years, the studies have indicated that long non-coding RNAs (lncRNAs) may play important roles in the initial stage and development of tumors. H19 is one of those lncRNAs, which is already proved to overexpress in a variety of tumors such as bladder cancer, stomach cancer and hepatocellular carcinoma (HCC). And H19 also could promote tumor proliferation and increase tumor cell migration and invasion ability, but neither the expression nor the function of H19 in non-small cell lung cancer(NSCLC) are clariifed. This study aimed to observe the effects of H19 on the proliferation, epithelial-mesenchymal transition (EMT) and invasion ability of NSCLC cell line A549.Methods:H19 was overexpressed by plasmids transfection, then the effect of H19 on the proliferation of A549 was measured by cell counting kit-8(CCK-8), the invasion of A549 cells was detected by Transwell assay, and the changes of cell morphology were observed with an optical microscope, and the expression of EMT-related proteins was detected by Western blot, and the promoter activity of CDH1 was measured by luciferase assay.Results:The proliferation of A549 cells was increased under the overexpression of H19(D value in blank group was 1.64±0.02, in negative control group was 1.59±0.04, in overexpression of H19 group 1.89±0.02,P<0.05), the invasion ability of A549 cells was dramatically enhanced [negative control group (30±6)/vision, overexpression of H19 group (110±7)/vision,P<0.05], and the A549 cells developed longer pseudopodia and had wider intercellular spaces. All these morphology changes indicated that the cells were undergoing the process of EMT, and meantime, the expres-sion of CDH1 was decreased, along with the expression of VIM and SNAI2 elevated, which were also related to the progression of EMT, and H19 also could depress the promoter activity of CDH1 by 60% (P<0.05).Conclusion:The overexpression of H19 induces the EMT, and enhances the proliferation and invasion ability of A549 cells.

With the development of organ transplantation for nearly half a century, currently the hot issues in clinical renal transplantation have already shifted to the application of low toxicity immunosuppressive drugs and their projects, as well as the research of technique which induces low or no immunity response to the specific donor. At present the main effective strategies of inducing immune tolerance are donor specific blood transfusion and donor specific bone marrow transplantation. This article summarizes the background, mechanism and clinical application of these two strategies.

Child ; Cryptosporidiosis ; complications ; Cryptosporidium parvum ; Cyclospora ; Cyclosporiasis ; complications ; Diarrhea ; complications ; Humans ; Hypoproteinemia ; complications ; Male

Integrative Medicine ; Medicine, Chinese Traditional

Objective To observe effects of ganoderma lucidum triterpenoids(GLT) on learning and memory function and anti-oxidative ability of aging model mice induced by D-galactose. Methods Senile model mice were established by D-galactose hypodermic injection for 8 weeks.GLT had been administered to two therapy groups.All the mice of different groups were tested with Morris water maze.Then the mice were killed and biochemically assayed of total anti-oxidative capacity(T-AOC),superoxide dismutase(SOD) and malondialdehyde(MDA) in the brain. Results The model mice showed worse ability in learning and memory in comparison with control mice.The T-AOC activity and SOD activity in the brain decreased and the MDA content increased in model rats in comparison with control.GLT significantly improved the changes mentioned above. Conclusion GLT improved the learning and memory dysfunction in aging model mice by modulation of the anti-oxidative ability.

AIM To study the effect of ketamine on proliferation,cell cycle in the cultured rat neural stem cells. METHODS The growth inhibition of ketamine on neural stem cell was evaluated by an MTT assay. The effect of ketamine on cell cycle was measured by flow cytometry. RESULTS Ketamine inhibited the growth of cultured rat neural stem cells. Flow cytometry analysis showed that G 0/G 1 phase rate was increased but S phase rate was decreased. CONCLUSION Ketamine can inhibit proliferation of cultured rat neural stem cells,and this inhibitition is associated with cell cycle block.

Objective To study the value of multi-slice spiral CT(MSCT)and high-resolution MR in evaluating the feasibility of total mesorectal excision(TME)for rectal cancer before operation.Methods Sixty-three cases biopsy-proven rectal cancer underwent MSCT and high-resolution MR examination,including CT in 35 and MR in 28.The involvement of mesorectal fascia,lymph nodes extra-fascia and the curve distance between the lesions and the anal margin were observed and compared with that of operation and pathology.Results In evaluating the involvement of mesorectal fascia,two patients were oversteped by CT and one patient by MRI,and there was no significantly statistic difference between CT and MRI.The curve distance between lesions and anal margis could be measured accurately on sagittal section of MR images in all cases.Sixteen patients had been found having metastatic lymph nodes at extra-mesorectal fascia,twelve of them were biopsy-proven.Thirty-seven patients had been found having metastatic lymph nodes at intra-mesorectal fascia,but 4 of them were inflammatory biopsy-proven.Conclusion MSCT and high-resolution MR are of significant values in evaluating the feasibility of TME in the patients with rectal carcinoma.

Acetylation ; Animals ; Child ; DNA Methylation ; Epigenesis, Genetic ; Heart ; physiology ; Heart Defects, Congenital ; etiology ; genetics ; metabolism ; Histone Acetyltransferases ; metabolism ; Histone Deacetylases ; metabolism ; Histones ; chemistry ; genetics ; physiology ; Humans ; Protein Processing, Post-Translational ; Transcription Factors ; metabolism