OBJECTIVE:To understand the distribution and drug resistance of the pathogens by sputum culture in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) in our hospital so as to provide reference for rational use of antibiotics. METHODS:From Dec. 2010 to Dec. 2014,the sputum specimens were collected from the AECOPD patients,then the identification of 307 strains of pathogens and drug susceptibility test were carried out,and the data were analyzed statistically by using SPSS 17.0 software. RESULTS:A total of 307 strains of pathogens were collected,of which 17 cases of gram-positive ba-cillus accounted (5.54%),247 cases of gram negative cocci (80.46%),43 cases of fungi accounted (14.00%). The most com-mon isolates from sputum specimens were Pseudomonas aeruginosa (33.22%),Acinetobacter baumannii (19.54%),Stenotroph-omonas maltophilia(9.77%),Klebsiella pneumoniae(7.82%),Candida albicans(6.84%),etc. P. aeruginosa and A. baumannii were highly multidrug-resistant. There were 10 strains of ESBLs-producing K. pneumonia isolated, with the isolation rate of 41.67%. No Staphylococcus aureus strain was found resistant to vancomycin,teicoplanin or linezolid. Methicillin resistant strains in S. aureus(MRSA)accounted for 50.00%. CONCLUSIONS:Gram-negative bacilli are the most common pathogens in the AE-COPD patients. The common species of pathogens are highly resistant. More attention should be paid to the drug resistance monitor-ing of pathogens and rational use of antibiotics according to the results of susceptibility test.

OBJECTIVE:To investigate the utilization of antipsychotic drugs in hospitalized patients of our hospital to provide reference for rational use of drug. METHODS: The utilization of antipsychotic drugs in psychiatric inpatients in our hospital in Jul. 21th of 2008 was surveyed and analyzed. RESULTS: 734 patients were treated with antipsychotic drugs, involving 30 drug therapy schemes. 676 patients were only treated with one kind of drug (87.8%),among which the top 3 drugs in the list of utilization rate were risperidone (n=190, 24.7%), quetiapine (n=144, 18.7%) and olanzapine (n=123, 16.0%). Antipsychotic drugs were mostly combined with following drugs for mental disorder, such as antidepressant, mood stabilizers, benzodiazepine, sedative-hypnotic drugs, hypoglycemics and lipid regulators. CONCLUSION:The new atypical antipsychotic drugs have replaced traditional antipsychotic drugs and took up dominant position in the clinical treatment with single category.

AIM: In order to evaluate and effectively control the quality of the Tibetan crude drug Herpetospermum pedunculosum,RP-HPLC fingerprint researches were conducted. METHODS: The gradient elution was applied in chromatographic separation,and 10 batches of samples from different producing areas were tested. RESULTS: Fingerprint chromatograms had a high similarity from different producing areas and batches showing 36 characteristic peaks in common. CONCLUSION: RP-HPLC is a repeatable method of controlling the fingerprint chromatograms,thus is practicable in the quality evaluation of Herpetospermum pedunculosum.Chemical components of samples from different producing areas and batches are similar,and the component ratios are stable.

Objective:To explore the effect of Weishenjiang Liquor on immune function in mice.Methods: Feeding mice with 8.5, 17, 50ml/kg Weishenjiang Liquor which contains 10mg/dl polysaccharide continuously for 28d, were determined the spleen index, chest gland index, phagocytosis of monocytes phagocytes, activity of NK cell, hemolysin formation, lymphocyte transformation and DTH test.Results: Phagocytosis of monocytes phagocytes, NK cell activity, hemolysin formation, lymphocyte transformation rate were increased in mice with a dose of 50ml/kg group. Conclusions: Weishenjiang Liquor has the function of strengthening cellular and humoral immunization in high dose.

Objective To explore the function of p53 on regulating the expression of miR-148b in lung cancer cell line PC-9 and its corresponding molecular mechanism and the impact on cell proliferation. Methods Transient transfection of p53 eukaryotic expressing plasmids into lung cancer cell line PC-9 was performed to establish a cell model over-expressing p53. RT-PCR was used to explicit the impact of p53 on the expression of miR-148b. A reporter vector containing miR-148b promoter was used to investigate the function of p53 on regulating the transcription of miR-148b. Low-expressing miR-148b by transfecting its specific inhibitors , a CCK-8 assay was performed to explore the influence of miR-148b on the lung cancer cell proliferation inhibited by p53. Results Over-expression of p53 promoted miR-148b expression in lung cancer cell line PC-9. P53 could increase the luciferase activity driven by miR-148b promoters. Knockdown of miR-148b attenuated the impact of p53 on inhibiting the proliferation of PC-9 cells. Conclusion P53 inhibits the proliferation of lung cancer cell line PC-9 partially depending on miR-148b.

Objective To research the clinical application of procalcitonin (PCT) combined with high sensitivity C reactive protein ( hs-CRP ) in the diagnosis and treatment of bronchopneumonia in children. Methods From February 2016 to March 2017, seventy-nine cases of 2～6 years old children with bronchial pneumonia in Hainan Maternity and Child Health Care Hospital were selected as the observation group. According to the degree of infection,the patients were divided into the general infection group (46 cases) and the severe infection group (33 cases). At the same time,a total of 43 healthy children of the same age group who underwent physical examination at the physical examination center of the same hospital during the same period were selected as control group. The changes of PCT and hs-CRP levels among different groups were compared. Results Before treatment, the levels of PCT and hs-CRP in the observation group were ( 0. 781 ±0.273) μg/L,(15.21±2.57) g/L,higher than those in the control group ((0.038±0.019)μg/L,(2.83 ±0. 49) g/L),the difference of the two groups was statistically significant (t＝17. 789,31. 224,respectively,P＝0. 000). The PCT and hs-CRP levels of children in the general infection group were (0. 673±0. 186)μg/L, (12. 78±2. 52) g/L,which were significantly lower than those of the severe infection group ((1. 235±0. 287) μg/L,(18. 54±3. 67) g/L),and the differences were statistically significant (t＝10. 557,8. 275,P＝0. 000). After 7 days of treatment,the levels of PCT and hs-CRP in the general infection groups ((0. 112±0. 045)μg/L, (3. 92±0. 73) g/L) were still lower than those in the severe infection group ((0. 171±0. 062)μg/L,(5. 21 ±1. 08) g/L)),and the differences were statistically significant (t＝4. 970,6. 337,P＝0. 000). The levels of PCT and hs-CRP in general infection group and severe infection group were significantly lower than those before treatment ( t＝19. 882,22. 904,20. 816,20. 016,P＝0. 000). Before the treatment,the PCT and hs-CRP positive rates in general infection group and severe infection group were 67. 39%,60. 87% and 90. 91%,87. 88%. After treatment,the PCT,hs-CRP positive rates of general infection group and severe infection group were 10. 87%, 23. 91%,30. 03% and 48. 48%. The positive rates of PCT and hs-CRP in the two groups after treatment were significantly lower than those before treatment,the differences were statistically significant (t ＝30. 849,12. 863, 25. 384,11. 803,P＝ 0. 000,0. 000,0. 000,0. 001) . The positive rates of PCT and hs-CRP in the general infection group before and after treatment were all significantly lower than those in the severe infection group,the differences were statistically significant(χ2＝6. 040,6. 976,4. 717,5. 157,P ＝0. 014,0. 008,0. 029,0. 023). Conclusion The levels of PCT and hs-CRP in children with bronchial pneumonia were significantly higher than those in healthy children of the same age. During the period of diagnosis and treatment,the changes of PCT and hs-CRP levels can be observed,so that the attending doctors can control their changes in time and play a guiding role in clinical treatment.

This study examined the role of EMP-1 in tumorigenesis of non-small cell lung carcinoma (NSCLC) and the possible mechanism. Specimens were collected from 28 patients with benign lung diseases and 28 with NSCLC, and immunohistochemically detected to evaluate the correlation of EMP-1 expression to the clinical features of NSCLC. Recombinant adenovirus was constructed to over-express EMP-1 and then infect PC9 cells. Cell proliferation was measured by Ki67 staining. Western blotting was performed to examine the effect of EMP-1 on the PI3K/AKT signaling. Moreover, tumor xenografts were established by subcutaneous injection of PC9 cell suspension (about 5×10(7)/mL in 100 μL of PBS) into the right hind limbs of athymic nude mice. The results showed EMP-1 was significantly up-regulated in NSCLC patients as compared with those with benign lung diseases. Over-expression of EMP-1 promoted proliferation of PC9 cells, which coincided with the activation of the PI3K/AKT pathway. EMP-1 promoted the growth of xenografts of PC9 cells in athymic nude mice. It was concluded that EMP-1 expression may contribute to the development and progress of NSCLC by activating PI3K/AKT pathway.

This study examined the synergetic effect of class IA Phosphoinositide 3-kinases catalytic subunit p110β knockdown in conjunction with oxaliplatin treatment on colon cancer cells. Down-regulation of p110β by siRNA interference and oxaliplatin treatment were applied in colon cancer cell lines HT29, SW620 and HCT116. MTT assay was used to measure the inhibitory effect of p110β knockdown on the proliferation of colon cancer cell lines. SubG1 assay and Annexin-V FITC/PI double-labeling cytometry were applied to detect cell apoptosis. And cell cycle was evaluated by using PI staining and flow cytometry. The expression of caspase 3, cleaved PARP, p-Akt, T-Akt and p110β was determined by western blotting. The results suggested that down-regulation of p110β expression by siRNA obviously reduced cell number via accumulation in G(0)-G(1) phase of the cell cycle in the absence of notablely increased apoptosis in colon cancer cell lines HT29 and SW620 (S phase arrest in HCT116). Moreover, inhibition of p110β expression increased oxaliplatin-induced cell apoptosis and cell cycle arrest in HT29, HCT116 and SW620 cell lines. In addition, increases of cleaved caspase-3 and cleaved PARP induced by oxaliplatin treatment were determined by immunoblotting in p110β knockdown group compared with normal control group and wild-type group. It is concluded that down-regulated expression of p110β could inhibit colon cancer cells proliferation and result in increased chemosensitivity of colorectal cancer cells to oxaliplatin through augmentation of oxaliplatin-induced cell apoptosis and cell cycle arrest.

Objective To determine if preventive antibiotics is effective in stroke associated pneumonia in patients with acute stroke.Methods Medline (January 1950 to January 2017),EMBASE (January 1974 to January 2017),Cochrane Library (January 2009 to January 2017),CNKI (January 1979 to January 2017)and Wanfang data (January 1998 to January 2017) were searched for randomized controlled trial comparing preventive antibiotics with placebo/blank controls for stroke associated pneumonia in patients with acute stroke.The included studies were screened out strictly based on the criterion of inclusion and exclusion.The quality of included studies was evaluated and the data were extracted by two researchers independently.RevMan 5.1 was used for Meta analysis.Results A total of 4 studies involving 3894 patients were included.The results of Meta-analysis indicated that there was no significant difference in the incidence of stroke associated pneumonia between preventive antibiotics and control groups (OR=0.96,95％CI:0.72-1.29,P=0.810);and there were no statistically significant differences in mortality (OR=1.05,95％CI:0.88-1.25,P=0.570) and good outcome (modified Rankin scale ≤ 2,OR=1.02,95％CI:0.89-1.17,P=0.780).There were no serious adverse reactions related to the studied drugs in 4 studies.Conclusion Preventive antibiotics could neither reduce the incidence of stroke associated pneumonia nor decrease the mortality or improve the proportion of good outcome.

This study examined the synergetic effect of class IA Phosphoinositide 3-kinases catalytic subunit p110β knockdown in conjunction with oxaliplatin treatment on colon cancer cells.Down-regulation of p110β by siRA interference and oxaliplatin treatment were applied in colon cancer cell lines HT29,SW620 and HCT116.MTT assay was used to measure the inhibitory effect of p110 knockdown on the proliferation of colon cancer cell lines.SubG1 assay and Annexin-V FITC/PI double-labeling cytometry were applied to detect cell apoptosis.And cell cycle was evaluated by using PI staining and flow cytometry.The expression of caspase 3,cleaved PARP,p-Akt,T-Akt and p 110β was dctermined by western blotting.The results suggested that down-regulation of p110β expression by siRNA obviously reduced cell number via accumulation in G0-G1 phase of the cell cycle in the absence of notablely increased apoptosis in colon cancer cell lines HT29 and SW620 (S phase arrest in -HCT116).Moreover,inhibition of p110β expression increased oxaliplatin-induced cell apoptosis and cell cycle arrest in HT29,HCT116 and SW620 cell lines.In addition,increases of cleaved caspase-3 and cleaved PARP induced by oxaliplatin treatment were determined by immunoblotting in p110β knockdown group compared with normal control group and wild-type group.It is concluded that down-regulated expression of p110β could inhibit colon cancer cells proliferation and result in increased chemosensitivity of colorectal cancer cells to oxaliplatin through augmentation of oxaliplatin-induced cell apoptosis and cell cycle arrest.