1.The application and consideration of innovative management in comprehensive hospital
Yutian BI ; Wujun LIN ; Chengfen SU ; Xiaobin CHENG ; Lin ZHOU
Chongqing Medicine 2014;(1):25-26,29
Objective To explore and investigate effective solutions of some issues in the self-development of large-scale compre-hensive hospital ,such as the innovation concept of hospital management ,strengthening the organization and management agencies , improving management efficiency and promoting the establishment of systematized management .Methods Starting from concept innovation ,theory innovation and method innovation of hospital management ,comprehensive applied the advanced concept of hospi-tal management and scientific management methods into the quality of medical care .Results Continuously strengthen the hospital medical quality and safety ,and form hospital-specific quality management system .Conclusion Through innovating the concept ,the-ory and methods of hospital management ,we can effectively promote continuous improving quality of medical care in comprehensive hospital and improve continually core competitiveness of hospital .
2.Building and practice of the medical safety education system in a general hospital
Yutian BI ; Wujun LIN ; Chengfen SU ; Xiaobin CHENG ; Lin ZHOU
Chinese Journal of Hospital Administration 2014;30(6):428-430
This article sumarized a practise-based study of the hospital regarding the management of its medical activities.By means of priotizing medical safety in pre-job and on-the-job eduation,and regular trainings in this regard,a systemized medical safety education ssytem is put in place among medical staff of different types and levels.This achieved the purpose of higher awaress of medical safety in medical practice,and downsized medical complaints significantly.
3.Study of gambogenic acid-induced apoptosis of melanoma B16 cells through PI3K/Akt/mTOR signaling pathways.
Hui CHENG ; Xuan ZHANG ; Jing-Jing SU ; Qing-Lin LI
China Journal of Chinese Materia Medica 2014;39(9):1666-1669
OBJECTIVETo discuss the mechanism of gambogenic acid (GNA) in inducing the apoptosis of melanoma B16 cells.
METHODThe inhibitory effect of GNA on the proliferation of B16 cells was measured by the methyl thiazolyl tetrazolium (MTT) assay. The effect of GNA on B16 cells was detected by the Hoechst 33258 staining. The transmission electron microscopy was used to observe the ultra-structure changes of B16 cells. The changes in PI3K, p-PI3K, Akt, p-Akt, p-mTOR, PTEN proteins were detected by the Western blotting to discuss the molecular mechanism of GNA in inducing the apoptosis of B16 cells.
RESULTGNA showed a significant inhibitory effect in the growth and proliferation of melanoma B16 cells. The cell viability remarkably decreased with the increase of GNA concentration and the extension of the action time. The results of the Hoechst 33258 staining showed that cells processed with GNA demonstrated apparent apoptotic characteristics. Under the transmission electron microscope, B16 cells, after being treated with GNA, showed obvious morphological changes of apoptosis. The Western blot showed a time-dependent reduction in the p-PI3K and p-Akt protein expressions, with no change in p-PI3K and p-Akt protein expression quantities. The p-mTOR protein expression decreased with the extension of time, where as the PTEN protein expression showed a time-dependent increase.
CONCLUSIONGNA could inhibit the proliferation of melanoma B16 cells and induce their apoptosis within certain time and concentration ranges. Its mechanism in inducing the cell apoptosis may be related to PI3K/Akt/mTOR signaling pathways.
Animals ; Apoptosis ; drug effects ; Blotting, Western ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cell Survival ; drug effects ; Dose-Response Relationship, Drug ; Melanoma ; metabolism ; pathology ; ultrastructure ; Mice ; Microscopy, Electron, Transmission ; Microscopy, Fluorescence ; PTEN Phosphohydrolase ; metabolism ; Phosphatidylinositol 3-Kinases ; metabolism ; Proto-Oncogene Proteins c-akt ; metabolism ; Signal Transduction ; drug effects ; TOR Serine-Threonine Kinases ; metabolism ; Terpenes ; pharmacology ; Xanthenes ; Xanthones ; pharmacology
4.Effects of Radix Hedysari Flavonoid on Microvessel Density of Pulmonary Interstitial Fibrosis Model Rats
Yali SHE ; Yun SU ; Yi ZHANG ; Juan LI ; Yongqi LIU ; Xiaoli CHENG ; Xingyao LIN ; Jintian LI
Chinese Journal of Information on Traditional Chinese Medicine 2014;(4):43-45
Objective To discuss the effects of Radix Hedysari flavonoids on microvessel density (MVD) of pulmonary interstitial fibrosis model rats, and provide evidence for its development. Methods SPF Wistar rats were divided into blank group, model group, prednisone group, and Radix Hedysari flavonoids high-, medium- and low-dosage group. Pulmonary interstitial fibrosis model was established by intratracheal instillation of bleomycin. From the second day after model established, each drug treatment group was administered with corresponding drugs intragastrically at different points in time for 14 and 28 days. MVD was detected by immunohistochemistry. Results Neomicrovessel was increased significantly in pulmonary tissue of model rats of 14 days treatment, but slightly decreased in 28 days. MVD in 14, 28 days model group was significantly more than blank group (P<0.01). MVD in 14, 28 days Radix Hedysari flavonoids high dosage group was significantly less than model group (P<0.01). MVD in Radix Hedysari flavonoids medium-dosage group was between high-and low-dosage group, and MVD in medium-dosage group was similar with that in model group. Conclusion Radix Hedysari flavonoids could inhibit the formation of neomicrovessel in a dose dependent manner.
5.Epidemiological Investigation and Genome Analysis of Duck Circovirus in Southern China
Chunhe WAN ; Guanghua FU ; Shaohua SHI ; Longfei CHENG ; Hongmei CHEN ; Chunxiang PENG ; Su LIN ; Yu HUANG
Virologica Sinica 2011;26(5):289-296
Duck circovirus(DuCV),a potential immunosuppressive virus,was investigated in Southern China from March 2006 to December 2009 by using a polymerase chain reaction(PCR)based method. In this study,a total of 138 sick or dead duck samples from 18 different farms were examined with an average DuCV infection rate of~35%. It was found that ducks between the ages of 40~60 days were more susceptible to DuCV. There was no evidence showing that the DuCV virus was capable of vertical transmission. Farms with positive PCR results exhibited no regularly apparent clinical abnormalities such as feathering disorders,growth retardation or lower-than-average weight. The complete genomes of 9. strains from Fujian Province and 1 from Zhejiang Province were sequenced and analyzed. The 10 DuCV genomes,compared with others genomes downloaded from GenBank,ranged in size from 1988 to 1996 base pairs,with sequence identities ranging from 83.2% to 99.8%. Phylogenetic analysis based on genome sequences demonstrated that DuCVs can be divided into two distinct genetic genotypes,Group I(the Euro-USA lineage)and Group II(the Taiwan lineage),with approximately 10.0% genetic difference between the two types. Molecular epidemiological data suggest there is no obvious difference among DuCV strains isolated from different geographic locations or different species,including Duck,Muscovy duck,Mule duck,Cheery duck,Mulard duck and Pekin duck.
6.Cloning,Expression and Sub-cellular Localization of APOBEC-3F and -3G and Their Effect on HBV
Gefei WANG ; Cheng PENG ; Weizhong LI ; Gang XIN ; Yun SU ; Youying CHEN ; Guimei LIN ; Kangsheng LI
Progress in Biochemistry and Biophysics 2006;0(03):-
APOBEC(apolipoprotein B mRNA-editing enzyme catalytic-polypeptide) family members were reported as innate immune molecules with anti-viral activity for many viruses, such as HIV and HBV.In order to understand the function of APOBEC, the APOBEC-3F and-3G were cloned, expressed, and the sub-cellular localization of them was detected.The genes of APBEC-3F and-3G were cloned from PHA-stimulated PMBC and expressed in the MDCK cell by transfection.The sub-cellular localization of APOBEC-3F and-3G were detected by immunofluorescence.APOBEC-3F and-3G were cloned by RT-PCR and confirmed by DNA sequencing.The immunofluorescence indicated APOBEC-3F and-3G were located in the cytosal.APOBEC-3F and-3G could inhibit HBV replication effectively in HepG2.2.15 cell.APOBEC-3F and-3G could not be trans-located into nuclear by nuclear location signal(NLS) or bi-NLS(B-NLS).These results will help the future research on the function of APOBEC.
7.Study on quality standard for Guijiu
Xiaoli SU ; Ruichao LIN ; Siukay WONG ; Sikyiu KWAN ; Shuki TSUI ; Tailun TING ; Sauwan CHENG ; Kwokpui FUNG
Chinese Traditional Patent Medicine 1992;0(03):-
AIM: To establish the quality standard of Guijiu(Rhizome or root of Podophyllum emodi(Wall.) Ying,Dysosma versipellis(Hance) M.Cheng or Dysosma pleiantha(Hance) Woodson.which herbs contained lignans including podophyllotoxin. METHODS: The microscopic examination, physio-chemical method such as LC-MS had been used. RESULTS: These methods can be used for the identification and quantitative analysis of Guijiu. CONCLUSION: The method proposes microscopic examination technique and physio-chemical method such as LC-MS fingerprint and LC-MS-MS for the identification and quantitative analysis of the herbs.
8.Quality standard for Euphorbia
Xiaoli SU ; Ruichao LIN ; Siukay WONG ; Sikyiu KWAN ; Shuki TSUI ; Tailun TING ; Sauwan CHENG ; Kwokpui FUNG
Chinese Traditional Patent Medicine 1992;0(04):-
AIM: Euphorbia is the unprocessed root of Euphorbia ebracteolata Hayata or Euphorbia Fischeriana Steud,or Stellera chamaejasme L.To establish the quality standard for these potent herbs. METHODS: The microscope examination techniques,physio-chemical methods such as HPLC/UV and LC-MS-MS had been used. RESULTS: The content of ebracteolata compund B in E.Fischeriana was 0.01%,and in E.ebracteolata was(0.01%)-0.02%.But the skimmetine,chamaechromone and neochamaejasmin A had not been chekout in both species.The content of skimmetine,chamaechromone and neochamaejasmin A was 0.57%-2.12 %,0.86%-(1.6%),and 0.45%-0.96% in S.chamaejasme.But the ebracteolata compund B had not been chekout in this specie. CONCLUSION: The method can be applied to conventional testing of Euphorbia.
9.Quality standard for Radix Aconiti
Siukay WONG ; Sikyiu KWAN ; Shuki TSUI ; Tailun TING ; Xiaoli SU ; Ruichao LIN ; Sauwan CHENG ; Kwokpui FUNG
Chinese Traditional Patent Medicine 1992;0(05):-
AIM: Radix Aconite is unprocessed parent root tuber of Aconitum carmichaeli Debx.containing toxic diterpenoid alkaloids such as mesaconitine,aconitine and hypaconitine.To establish the quality standard for this potent herb. METHODS: The microscopic examination technique,HPLC-UV and LC-MS-MS methods had been used. RESULTS: These methods can be used to analyse the quality of this potent herb. CONCLUSION: This paper proposes microscopic examination technique and physio-chemical methods such as HPLC-UV and LC-MS-MS for the identification and quantitative analysis of the herbs.
10.Research of anti-tumor effect of PHⅡ-7 to K562/A02 cells
Xiangshang LI ; Yang LIN ; Yunhui HU ; Ye SU ; Xin CHENG ; Ming YANG ; Chunzheng YANG ; Jinhong WANG
Chinese Pharmacological Bulletin 1986;0(06):-
Aim To study the mechanism of anti-tumor effect of PHⅡ-7 to K562 and K562/A02 cells.Methods The effects of individual and combined doxorubicin on K562 and K562/A02 cells were observed by MTT assay.The coefficient of drug interaction was used to analyse the synergistic effect of PHⅡ-7,obtaining the RNA from the cells stimulated by PHⅡ-7 with different doses to analyse the MDR1 gene expression level.Finally,the cumulation of doxorubicin was observed in K562 and K562/A02 cells after being coped with PHⅡ-7.Results PH Ⅱ-7 had anti-tumor effect with IC50 of (1.37?0.37) ?mol?L-1;(1.48?0.34) ?mol?L-1 for K562 and K562/A02,respectively.It could potentiate the anti-tumor effect of dororubicin with CDI of 0.22 and 0.09 for K562 and K562/A02,respectively.PHⅡ-7 could synergistically inhibit the proliferation of K562 and K562/A02 cells.The decrease of MDR1 expression level depended on the increase of dose of PHⅡ-7 acting on cells.PHⅡ-7 could also develop the cumulation of doxorubicin in cells.Conclusion PHⅡ-7 is not only a Cytotoxinic drug but also can synergistically inhibit the proliferation of K562 and K562/A02 cells with the decrease of MDR1 expression level,especially in K562/A02 cells.