1.Effects of MicroRNA-154 on Apoptosis of Hepatic Stellate Cells
Ying ZHANG ; Hong ZHANG ; Rui PENG ; Danyun WEI
China Pharmacist 2015;(11):1859-1863
Objective:To investigate the effect of miR-154 on the apoptosis of hepatic stellate cells (HSC-T6). Methods:Hepat-ic stellate cells (HSC-T6) were transfected with miR-154 mimics and miR-154 inhibitor, and the cells were trandfected with mimics NC and inhibitor NC as the negative control. The effects of miR-154 on the proliferation of HSC-T6 were detected at different time points by CCK-8. A flow cytometry with double staining of Annexin and PI was used to detect the cell cycle and apoptosis rate of HSC-T6. Results:The proliferation ability of the cells was increased,the apoptosis rate was decreased significantly, and the proportion of cells in G0/G1 phase were decreased, and those in G2/M phase were increased significantly after transfected with miR-154 mimics. The proliferation ability of the cells was decreased,the apoptosis rate was increased significantly, and the proportion of cells in G0/G1 phase were increased, and those in G2/M phase were decreased significantly after transfected with miR-154 inhibitor. Conclusion:MiR-154 can promote the proliferation of HSC-T6 and inhibit the apoptosis of HSC-T6.
2.Effect of Single Nucleotide Polymorphisms in ABCC2 on Clinical Drug Application
Danyun WEI ; Hong ZHANG ; Rui PENG ; Ying ZHANG
China Pharmacist 2015;18(12):2152-2156
Objective:To summarize the single nucleotide polymorphisms ( SNPs) in ABCC2 and the effect on clinical drug appli-cation. Methods:According to the related articles published in domestic and abroad, the correlation between the single nucleotide pol-ymorphisms in ABCC2 and drug responses was classified and summarized. Results:ABCC2 translocator played an important role in the transmembrane transport of many physiological compounds and exogenous compounds. Numerous studies have demonstrated that the single nucleotide polymorphisms in ABCC2 possibly affected the expression or activity of ABCC2, which leading to the variation in the absorption, distribution and excretion of certain drugs and toxicants. However, the limitation and controversy were still emerged in the results. Conclusion:The influence of ABCC2 single nucleotide polymorphisms on clinical drug application shows significantly referen-tial value for the guidance of medication and the evaluation of efficacy, however, it can not be used as the only indicator yet.
3.Effect of Dimethyl Dicarboxylate Biphenyl (DDB) on the Proliferation, Apoptosis and PPARγExpression of Hepatic Stellate Cells
Danyun WEI ; Hong ZHANG ; Ying ZHANG ; Rui PEN
China Pharmacist 2016;19(3):413-416
Objective: To investigate the effect of dimethyl dicarboxylate biphenyl ( DDB) on the proliferation, apoptosis and PPARγ expression of hepatic stellate cells. Methods: HSC-T6 cells were cultured in 96-well plates and 6-well plates, and after the 24-hour drug treatment, the influence of DDB on the proliferation and apoptosis of HSC-T6 were detected respectively by CCK-8 kit and flow cytometry. Quantitative real-time-PCR ( Q-PCR) and Western blotting were adopted to determine the effect of DDB on the PPARγmRNA level and the protein expression in HSC-T6 cells. Results:DDB obviously inhibited the proliferation of HSC-T6 (P<0. 05) and significantly promoted the apoptosis of HSC-T6 (P<0. 05) at the experimental concentration (8-64 μmol·L-1) when compared with the control group (0 μmol·L-1). The expression of PPARγ in drug-treated HSC-T6 was notably improved. Conclusion: DDB can inhibit the proliferation and promote the apoptosis of HSC-T6 cells by up-regulating the expression of PPARγ.
4.Serological detection and E gene sequence analysis of dengue virus isolated from 484 patients in
Yecheng LU ; Yu LIANG ; Jingjiao ZHOU ; Wanshan CHEN ; Danyun FANG ; Junmei ZHOU ; Fuchun ZHANG ; Lifang JIANG
Chinese Journal of Clinical Infectious Diseases 2009;2(2):98-101
Objective To detect dengue virus infection by serological method and to determine the sequences of E gene of dengue virus isolated from Guangzhou in 2006.so as to clarify the possible origin of dengue fever.Methods IgM and IgG antibodies to dengue virus were detected by immunochromatographic test(ICT);NSI antigen and IgM antibody were detected by enzyme-linked immunosorbent assay(ELISA).The virus was cultured and isolated from the serum samples within 2 days using C6/36 cell lines and was identified by immuno-fluorescence assay(IFA)and RT-PCR.The E gene of isolated virus DV1-GZ42/06 was sequenced;homological analysis and phylogenetic tree analysis were performed by comparing with the reference strains and epidemic virus strains.Results The positive rates of IgM and IgG of dengue virus in patients were 89.5%(433/484)and 38.0%(184/484)by ICT,respectively.The positive rates of NS1 antigen were 92.7%(38/41)in day 1 to day 2,83.3%(70/84)in day 3 to day 5,and 10.9%(5/46)in day 6 to day 10;and the IgM detection rates were 2.4%(1/41),51.2%(43/84)and 97.8%(45/46)at the same period by ELISA.Twenty-five strains of dengue virus were isolated from 41 serum samples(6 1.O%)and were identified as type 1 dengue virus by IFA and RT-PCR.The sequencing and phylogenetic analysis of the E gene showed that the homology between the isolated Guangzhou/42/06 strain and standard strain Hawaii/45 was 94.6%.and it had a high homology with the Thailand/NI09V104,Vietnam/06.and Vietnam/07 isolates(99.0%,98.6%and 98.6%,respectively)and belonged to the same cladogram,but had low homology with the isolated strain from Guangdong before 2006.Conclusions The detection of NS1 antigen is important in the early diagnosis of dengue fever.The outbreak of dengue fever in Guangzhou in 2006 was possibly caused by the cases from neighboring countries.
5.Deletion of the LMP-1 gene integrated in the nasopharyngeal carcinoma cell line SUNE-1
Peng LIU ; Zhenyu ZHU ; Qingxiu ZHANG ; Bijun HUANG ; Manzhi LI ; Danyun HUANG ; Jianqua MA
Chinese Journal of Pathophysiology 2000;0(08):-
AIM: To study the EBV LMP-1 gene integrated in the chromosome of poorly differentiated nasopharyngeal carcinoma cell line SUNE-1. METHODS: The LMP-1 gene of SUNE-1 was detected with PCR; Deletion of LMP-1 was examined by restriction endonuclease analysis and PCR. The deletion was precisely localized by DNA sequencing. RESULTS: The LMP-1 gene integrated in the chromosome of SUNE-1 could be deleted or non-deleted. The two introns of LMP-1 gene were shown being lost in SUNE-1 cell line. CONCLUSION: Deletion of intron 1 and intron 2 happen in some of the LMP-1 gene integrated in the chromosome of SUNE-1.
6.Analyses for the ?/? T Cell Receptor Gene Rearrangement and CDR3 Repertoire in Active Pulmonary Tuberculosis Patients
Jianbo ZHANG ; Yimin FANG ; Yan HUANG ; Lifang JIANG ; Tao DONG ; Xiaomin ZHU ; Danyun FANG ; Xiaomin LAI
Chinese Journal of Immunology 1999;0(12):-
Objective:To establish a method of multi-PCR to amplify the complete DNA sequence (CDS) of TCR ? and ? chain of the antigen-specific T lymphocytes in local pathologic specimen of active pulmonary tuberculosis patients, and to analyze ?/? T cell receptor gene rearrangement and CDR3 repertoire.Methods:The lymphocytes in bronchoalveolar lavage (BAL) of active pulmonary tuberculosis patients were separated. Following total RNA extraction, cDNA synthesis, Multi-PCR, recombinant clones construction, and sequencing, the CDS of TCR ? and ? chains from these lymphocytes were analyzed by using software of DNAstar and internet TCR resources.Results:24 of ? chain CDS and 13 of ? chain CDS from 3 samples of BAL were obtained. As for TCR ? chain, AV1S2 (54%), AV12S3 (41%), and AV12S2(5%) appeared frequently. BV2(38%), BV29S1(46%), BV14(3%), and BV4S2(3%) in TCR ? chain appeared more often. There were CDR3 diversities between samples and even in the same sample by amino acid sequence analysis, but there were a few identical or similar amino acid sequences. There was the same amino acid sequence of SVGTGTLHQETQY in CDR3 region of ? chain of BAL sample No.1 and No.2; The sequence of AVRDWAGNMLT appeared in two ? chains of BAL sample No.2 and No.3; Moreover, the sequence of AV…DNN…RLM appeared in ? chains of BAL sample No.2 and No.3.Conclusion:A method of Multi-PCR is used to amplify TCR ? and ? chain CDS of tuberculosis patients. There are characteristic T cell clones to proliferate,with TCR ? and ? chain repertiore skewing in local infective focus. The sequences of CDR3 in different TCR clones are mostly different but there are a few identical or similar sequences in the same patient or even between different patients. The identical amino acid sequences of CDR3 are possibly specific for recognizing MTB polypeptide.
7. Correlation between severity of gastroesophageal reflux cough and degree of gastroesophageal reflux disease
Suping TANG ; Yanlin LIU ; Hong GAO ; Li DONG ; Dongru LIN ; Shen CHEN ; Danyun ZHANG ; Lingling ZHANG ; Juan PAN
Chinese Journal of Pediatrics 2018;56(7):534-538
Objective:
To explore the correlation between the severity of gastroesophageal reflux cough and degree of gastroesophageal reflux.
Methods:
A cross-sectional investigation was carried out. Data of 174 cases of chronic cough were collected in Children's Hospital of Fuzhou from March 2009 to December 2016. The esophageal 24 hours pH value dynamic monitoring was used to detect gastric acid reflux index. Cases with abnomal results were divided into mild, moderate and severe groups according to severity of reflux and that of day and night cough symptoms, respectively. They were also divided into infant (1-3 years old), preschool (4-6 years old), and school age (>7 years old) groups according to age. Comparative analysis between groups by chi-square test and rank sum test were performed. Correlation analysis was used to analyze the correlation between cough severity and gastroesophageal reflux index.
Results:
A total of 174 patients with chronic cough, including 115 males and 59 females, aged from 1 to 15 years with an average age of (8.5±2.3) years, and (1.6±0.8) years of disease duration were enrolled. Among them, 129 cases (74.1%) were positive for esophageal reflux test and 45 cases (25.9%) with no obvious pathological gastroesophageal reflux. Patients with positive esophageal reflux test were divided into severe (
8.Practice and reflection on medical cost control for 14 hospitals in Hubei province
Li WEI ; Yu HU ; Ming ZHANG ; Ning DING ; Danyun DAI ; Wen CHEN ; Dong XU
Chinese Journal of Hospital Administration 2018;34(9):714-716
This paper described the practice of medical cost control in Hubei's provincial state-owned hospitals. Their measures taken include combinations of overall planning and classification, total volume control and structural adjustment, external governance and internal management, as well as systematical management and difficulties breakthroughs. This paper proposed to further consolidate the outcomes of the abovementioned efforts by improving the fiscal compensation mechanism, furthering medical insurance payment reform, and continuing to monitor and publicize the medical expenses.
9.Analysis of Organized Scientific Research Practice in an Affiliated Hospital of University
Ning DING ; Yu HU ; Danyun DAI ; Jiancai WU ; Can XIANG ; Ming ZHANG ; Dong XU
Chinese Hospital Management 2024;44(2):87-90
Taking Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology as an example,it discusses the basic ideas and innovative practices of project organization from"passive order taking"to"active planning",platform construction from"free growth"to"directional cultivation",team construction from"wearing hats"to"focusing on actual combat",and achievement transformation from"resource guidance"to"comprehensive policy".It puts forward some suggestions that hospitals should play the leading role of"national team"in organizing scientific research and innovation practice,pay attention to the docking of national strategy,the linkage of university resources.
10.Analysis of the influencing factors of the high-quality development of tertiary public hospitals from the perspective of supply chain
Ming ZHANG ; Yu HU ; Danyun DAI ; Li WEI ; Ning DING ; Yidan ZHANG ; Wen CHEN ; Dong XU
Chinese Journal of Hospital Administration 2022;38(8):561-565
The development characteristics of tertiary public hospitals in China presented differently under the macro environment in different periods. Based on the theory of supply and demand chain of medical services, the authors discussed the key factors affecting the high-quality development of tertiary public hospitals under the new situation from the four elements of production, distribution, circulation and consumption, and put forward countermeasures and suggestions as follows: optimizing the supply of medical talents and system construction in the production process; speeding up the layout of high-quality resources and the construction of an integrated medical service system in the distribution process; strengthening imformation construction and the scientific and technological innovation in the circulation process; expanding healthcare/prevention integration and refining supporting policies in the consumption process, so as to provide reference for accelerating the high-quality development of public hospitals in China.