1.Studies of Huanyuan injection on TNF- α and sIL- 2R in patients with acute hemorrhage stroke
Xiangming CHANG ; Jie JIANG ; Li SUN
Chinese Journal of Tissue Engineering Research 2001;5(3):65-66
Objective To observe the effect of Huanyuan Injection on TNF- α 、 sIL- 2R in patients with acute Intracranial hemorrhage.Method Sixty patients were randomly selected and divided into two groups.TNF- α 、 sIL- 2R in the blood of the patients were observed before and after therapy with Huanyuan Injection.Result Increasing level of TNF- α 、 sIL- 2R could be detected,at the same time,Huayuan Injection could react on the differentiation.Conclusion The effect of Hyanyuan Injection on the levels of TNF- α 、 sIL- 2R may show some insight on its therapeutic mechanism for acute hemorrhage stroke.
3.Effect of tetrandrine on proliferation of human pterygium fibroblasts
Guang-Li, SUN ; Ming-Chang, ZHANG ; Li, JIANG
International Eye Science 2008;8(2):226-229
AIM: To investigate the effect of tetrandrine (Tet) on proliferation of human pterygium fibroblasts (HPF) in vitro and to search for a new method to prevent the recurrence after pterygium surgery.METHODS: With different concentrations (0 to 160μmol/L) of Tet acting on HPF cultured in vitro, the impact was observed at 24, 48, 72 hours respectively after Tet intervention. The MTT method was used to assay the biologic activities of Tet and inhibitive rate of cell growth. The expression of proliferating cell nuclear antigen (PCNA) in each group was detected by immunohistoche-mistry before and after Tet intervention.RESULTS:With different concentrations of 20, 40, 80 and 160μmol/L and acting for 24 to 72 hours, Tet could inhibit the proliferation of HPF in a dose- and time-dependent manner (P<0.05). After the intervention of Tet, the expression of PCNA protein declined. When the concentration of Tet was in the range of 20 to 160μmol/L, it was able to inhibit the expression of PCNA in a concentration-dependent manner (P<0.05).CONCLUSION:Tet could significantly inhibit the proliferation of pterygium fibroblasts, and the inhibitive action was in a dose- and time-dependent manner within a certain range of concentration. But in high concen-tration (>160μmol/L), Tet would have cytotoxity.
4.A comparative study of general practitioner training patterns in rural and remote areas of Australia and China
Xiangcui YIN ; Man LI ; Zhongmin JIANG ; Xiaotian CHANG ; Hongjun SUN
Chinese Journal of Hospital Administration 2015;31(12):888-890
The manuscript introduced the overview, training objectives, policy advantages, training process,curriculum, examination of the Australian College in Rural and Remote Medicine and further contrasted that with China's domestics.The authors held that Australia's training is better targeted due to its colleges tailored to this end;the training duration for general practitioners of rural and remote areas is longer,and the training schedule is reasonable;the curriculum design and training content are more targeted;and the homogeneous training is better achieved as its examination is run by the college in a standardized manner.The authors therefore hold that China should develop detailed regulations for general practitioners from rural and remote areas and explore the feasibility of setting up second-level disciplines institutes for internal medicine, surgery, gynecology and obstetrics, pediatrics and general at national and provincial level.
5.Research progress of PoIo-Iike kinase 1 inhibitors targeting PoIo-box domain
Aihong YAO ; Yujie CHANG ; Cheng JIANG ; Haiying SUN
Journal of China Pharmaceutical University 2016;(1):1-8
The over-expression of Polo-like kinase 1(Plk1)is critical in the producing and progressing of multi-ple human tumors and is recognized as an effective target for the development of novel anti-cancer drugs.Currently a variety of small molecules targeting ATP or substrates binding sites have entered different stages of clinical trials.Polo-box domain(PBD)is a unique domain of Plks which plays an important role in the sub-cellular location of Plks and also in the recognition of their substrates,therefore it has become an attractive target for the development of novel target-directed Plk1 inhibitors.In this paper,PBD function of Plk1 was intro-duced,the progress of small molecule and phosphoserine /phosphothreonine contained short peptide Plk1 inhibi-tors targeting PBD was summarized.Further development of this kind of inhibitors was also proposed.
6.Cloning, Sequencing of Suaeda heteroptera kitag CMO cDNA and Construction of its Recombinant Plant Expression Vector
Chong-Bin ZHONG ; Chang-Jiang LIU ; Teng FEI ; Xiao-Dong YUAN ; Li-Hui SUN ;
China Biotechnology 2006;0(07):-
Total RNA was extracted from leaf of Suaeda hetroptera kitag, then the CMO ( choline monooxygenase) cDNA was amplified using the reverse transcriptase polymerase chain reaction ( RT-PCR) method and cloned into pMD-T-simple vector. The positive clones from the Blue/White Screen were sequenced. After confirming its validity, the CMO gene fragment was cloned into pBI121 vector. Double enzyme restriction and PCR analysis indicated that the pBI121/CMO recombinant plasmid was successfully constructed.
7.Reforming Experiment Teaching Mode to Cultivate Applied Capability of Bioengineering Students
Chang-Jian LIU ; Yan-Ying WANG ; Bo JIANG ; Qiu LIU ; Tian-Zhu SUN ;
Microbiology 2008;0(09):-
To cultivate applied capability of bioengineering students, five aspects should be done: optimization of experiment teaching system, reformation of experiment teaching mode, intensifying management of experiment teaching, increase of new experiments related tightly to scientific research, and training students’ self-study capability.
8.Significance of detecting miR-145 hypermethylation in non-small cell lung cancer
Yongmei CHANG ; Mingzhi WANG ; Cong SUN ; Wensen YAN ; Qingfeng LIU ; Xiaoyun JIANG ; Jun WANG
The Journal of Practical Medicine 2016;32(16):2671-2673
Objective To explore the significance of detecting miR-145 hypermethylation in non-small cell lung cancer (NSCLC). Methods Seventy-five NSCLC tissues and adjacent tissues was collected from May 2012 to January 2015. The methylation status of miR-145 promoter was tested by bisulfite sequencing PCR (BSP) and the expression of miR-145 evaluated by ISH. The correlation between miR-145 methylation and clinical parameters , and the relationship between miR-145 methylation and expression were statistically analyzed. Results The hypermethy-lation ratio of miR-145 in NSCLC tissues was higher than that in the adjacent tissues. Hypermethylation of miR-145 was correlated with NSCLC differentiation stage, but not with gender and age. In NSCLC, miR-145 hypermethyla-tion was negatively related with its expression. Conclusion MiR-145 hypermethylation is closely related with dif-ferentiation stage in NSCLC tissues. MiR-145 hypermethylation may be a potential biomarker for estimating NSCLC differentiation stage.
9.Mucoepidermoid carcinoma of the tracheobronchial tree: CT findings
Sen JIANG ; Xiaohua ZHU ; Xiwen SUN ; Chang CHEN ; Hui ZHENG ; Bing JIE ; Dong YU ; Gang PENG
Chinese Journal of Radiology 2010;44(1):20-23
Objective To explore the CT findings of mucoepidermoid carcinoma (MEC) of the tracheobronchial tree and improve the diagnostic accuracy. Methods The CT images, histopathological and clinical data in 24 patients with pathologically proved MEC of the tracheobroncbial tree were retrospectively analyzed. Results The clinical symptoms included cough, sputum, fever, wheezing, chest pain and hemoptysis. The patient was proved to be low-grade (n=19) and high-grade (n=5) MEC histopathologically. One lesion was located in trachea, 6 in main bronchus, 12 in lobar bronchus and 5 in segmental, subsegmental and distal bronchus. The tumor presented as no-invasive endotracheobronchial well-defined round-like nodule (n=13, locating in lobar and higher bronchus) and columnar sharp (n=3, locating in main bronchus), or intra-and-extraluminal well-defined round-like nodule or mass (n=6, locating in lobar and lower bronchus) and irregular mass with invasive pattern (n=2, high-grade type). The density of lesion was similar to the muscule and the calcification within lesion was showed in 4 patients on non-enhanced CT. The lesion had marked enhancement in 17 patients on enhanced CT. Obstructive changes were found in 20 patients. Conclusion MEC of the tracheobronchial tree is usually low-grade malignancy and locates in main and lobar bronchus with no-invasive well-defined airway mass, marked enhancement and calcification on CT.
10.Preparation of two poor water soluble drugs - nanoporous ZnO solid dispersions and the mechanism of drug dissolution improvement.
Bei GAO ; Changshan SUN ; Zhuangzhi ZHI ; Yan WANG ; Di CHANG ; Siling WANG ; Tongying JIANG
Acta Pharmaceutica Sinica 2011;46(11):1399-407
Nanoporous ZnO was used as a carrier to prepare drug solid dispersion, the mechanism of which to improve the drug dissolution was also studied. Nanoporous ZnO, obtained through chemical deposition method, was used as a carrier to prepare indomethacin and cilostazol solid dispersions by melt-quenching method, separately. The results of scanning electron microscope, surface area analyzer, fourier transform infra-red spectroscopy, differential scanning calorimeter and X-ray diffraction showed that drugs were implanted into nanopores of ZnO by physical adsorption effect and highly dispersed into nanopores of ZnO in amorphous form, moreover, these nanopores strongly inhibited amorphous recrystallization in the condition of 45 degrees C and 75% RH. In addition, the results of the dissolution tested in vitro exhibited that the accumulated dissolutions of indomethacin and cilostazol solid dispersions achieved about 90% within 5 min and approximately 80% within 30 min. It was indicated in this study that the mechanism of drug dissolution improvement was associated with the effects of nanoporous ZnO carrier on increasing drug dispersion, controlling drug in nanopores as amorphous form and inhibiting amorphous recrystallization.