1.The diagnostic significance of antineutrophil cytoplasmic antibodies in patients of Uygur nationality and Han nationality with ulcerative colitis
Chinese Journal of Digestion 2001;0(10):-
ObjectiveTo evaluate the status of ANCA(antineutrophil cytoplasmic antibodies) positivity in Uygur nationality and Han nationality patients with ulcerative colitis (UC); and the possibility of the ANCA as a genetic marker of susceptibility between Uygur and Han nationality patients with ulcerative colitis in the same area. MethodsSerum samples from 39 Uygur and 31 Han patients with UC, 30 Uygur and 30 Han patients with diarrhea of other causes, 30 Uygur and 30 Han subjects as healthy controls were examined for ANCA using indirect immunofluorescence. Results ANCA was detected in 24 of 39(61.5%) Uygur patients with UC, 11 of 30( 35.5%) Han patients with UC, 1 of 30(3.3%) Uygur patients with diarrhea of other causes, none of 30 Han patients nor in the two healthy controls. It showed that the positive rate in Uygur patients with UC was significantly higher than in Han patients with UC (P0.05). Conclusions ANCA is useful in distinguishing patients with UC from other diarrhea diseases. ANCA may be a potential marker of genetic susceptibility to UC.
2.Study on Electronic Management for Drug Inspection Standards
China Pharmacist 2014;(4):665-666
Objective:To provide a new idea for the management of drug inspection standards. Methods: The current manage-ment mode for drug inspection standards was analyzed and studied, the problems and difficulties were summarized, and then a novel i-dea and method of electronic management was formulated. Results: The electronic management for drug inspection standards could solve the problems encountered in the traditional management effectively and improve the management efficiency. Conclusion: The standard management information system can provide drug inspection standards in time and ensure the effectiveness, which is very help-ful to the drug inspection.
3.Regulatory effects of microRNAs in angiogenesis and ischemic diseases
Faliang GAO ; Yang WANG ; Zhifeng DENG
International Journal of Cerebrovascular Diseases 2009;17(9):710-715
Angiogenesis is a vital biological process. MicroRNAs play important regulatory effects in angiogenesis, and the related research has attracted wide attentioa This article summarizes the latest advances in the regulatory effects of microRNAs in vasculogenesis in recent years, and at the same time, sums up some specific microRNAs in angiogenesis that may have imolved in regulating ischemic diseases.
4.Management of Drug Emergency Inspection
Zhifeng GAO ; Yan WANG ; Huaxin YANG
China Pharmacist 2014;(11):1937-1938
Objective:To enhance the management level of drug emergency inspection. Methods: The emergency inspection of plasticizers was used as the example, and the management in the whole inspection procedures was reviewed to summarize the difficulties and solutions and analyze the management features of drug emergency inspection. Results and Conclusion: There are three keys in successful drug emergency inspection, including correct top-level design, high efficient execution teams and necessary guarantee sys-tems.
5.Hepatic angiomyolipoma: correlation of MRI and pathologic findings
Huiyi YE ; Zhifeng XIE ; Yuangui GAO
Chinese Journal of Radiology 2001;0(09):-
Objective To describe the MR imaging features and pathologic findings of hepatic angiomyolipoma (HAML), and to evaluate the utility of MR imaging in diagnosis of this tumor. Methods The MR imaging features of eight patients with HAMLs confirmed pathologically were analyzed retrospectively and correlated with pathologic findings. Results Eight patients had a solitary hepatic mass, five (mixed type HAML) of which were diagnosed correctly, and two (1 myomatous type HAML and 1 angiomatous type HAML) of which were diagnosed as hepatic adenoma and focal nodular hyperplasia, and one (mixed type HAML) with hemorrhage and multiple cystic change was mistaken for malignant tumor. Six cases of mixed type HAML exhibited heterogeneously high signal intensity on T 1 and T 2WI. The high signal intensity on T 1WI in five cases disappeared completely after using fat saturation, and most part of the high signal intensity in one case disappeared and some of the high signal intensity remained unchanged after using fat saturation, and multiple cystic change within this mass was detected. One myomatous type HAML and one angiomatous type HAML showed hypointensity on T 1WI and hyperintensity on T 2WI. Multiphase dynamic Gd DTPA enhanced MR scanning was performed in six patients and all those masses showed strong enhancement during arterial phase, and four of which showed moderate enhancement and two slight enhancement during portal venous and delayed phase. Pseudocapsule detected in five cases showed slight enhancement on portal venous and (or) delayed phase. Conclusion MR imaging can reveal the characteristic findings of mixed type HAML and accurate preoperative diagnosis can be made.
6.Cerebral ischemia models in rats
Rongliang WANG ; Feng YAN ; Zhifeng GAO ; Xunming JI ; Yumin LUO
International Journal of Cerebrovascular Diseases 2012;20(1):48-53
This article summarizes the methods of making rat cerebral ischemia models and comments the advantages and disadvantages of various methods in order to provide references for the selection of animal models in the basis and appfication research of cerebral ischemia.
7.Analysis of T lymphocyte subsets in patients with primary biliary cirrhosis
Lixia GAO ; Xuhua SHI ; Zhifeng QIU ; Fengchun ZHANG ; Bin LIU
Chinese Journal of Rheumatology 2008;12(7):477-479
Objective To investigate the significance and characteristics of T lymphocyte subsets and co-stimulatory CD28 in peripheral blood of patients with primary biliary cirrhosis. Methods Tri-colour flow-cytometry was used to detect the levels of T lymphocyte subsets in peripheral blood in 98 patients with primary biliary cirrhosis and 30 age and gender matched healthy controls. Results Compared to control group the percentage of CD4+ T increased and CD8+ T lymphocyte decreased in the PBC group. The CD4+/CD8+ ratio in the PBC group was higher than that in the control group (P<0.05). And the percentage of CD4+CD28- T cells and CD8+CD28- T cells increased, too (P<0.05). Conclusion There are immunological abnormalities in PBC and the expression of co-stimulator CD28 is significantly decreased. CD8+CD28-T lymphocytes may have immune regulatory effect in PBC.
8.Research on Analysis Model for Chemical Drug Standards
Zhifeng GAO ; Yan WANG ; Kang HU ; Lan LIN ; Huaxin YANG
China Pharmacist 2014;(12):2124-2126
Objective: To research and establish an analysis model for chemical drug standards to provide the reference for the standard exploration jobs. Methods:The standard variation was studied by comparing and analyzing every version standard for the same drug to look for the change rule. Results:The standard items of the drug had some change rules in indicator numbers, testing methods and limits according to the order of issue time. The standard development trends could be described by making specific indicators and drawing evolution figures of the items. Conclusion:By the standard analysis model, the same item of the same drug can be compared to provide the reference for data collecting of experts. Meanwhile, formulate standard can be calculated to provide the reference for the standard improvement without drug standards.
9.Differences Between Field-dependent and Field-independent Individuals in Shame and Sad Memories
Mi WANG ; Jun GAO ; Zhiyan WANG ; Zhifeng ZHANG ; Mingyi QIAN
Chinese Journal of Clinical Psychology 2006;0(05):-
Objective: To examine whether there are differences between dependent and independent individual’s shame and sad memories. Methods: Self -report measures were used. Results: ① There were significant interactions between emotion and cognitive style of the number of words recalled, number of times that others were mentioned. ②Field dependent individuals mention more emotional behaviors and presence of others. ③The subjects mentioned more emotion words and time in sad memories. ④In shame memories, there were less self-references than others-references, marginally less self in thinking than self in other descriptions. ⑤In sad memories, field dependent individuals reported less selfreferences than others-references, and less self in thinking than self in other descriptions. ⑥There were more emotional behaviors and self-thinking in sad memories than in shame memories. Conclusion: Field dependent and independent individuals demonstrate differences in emotional memory, and the difference is emotion specificity.
10.Suppression of breast cancer proliferation and induction of apoptosis via AKT and ERK1/2 signal transduction pathways by synthetic polypeptide derived from viral macrophage inflammatory protein II.
Qingling, YANG ; Changjie, CHEN ; Zhifeng, YANG ; Yangjun, GAO ; Jie, TANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2011;31(4):497-503
SDF-1α, a ligand for the chemokine receptor CXCR4, is well known for mediating the migration of breast cancer cells. In a previous study we demonstrated that a synthetic 21-mer peptide antagonist of CXCR4 (NT21MP) derived from the viral macrophage inflammatory protein II could antagonize tumor growth in vivo by inhibiting cellular proliferation and inducing apoptosis in breast cancer cells. However, the role of SDF-1α in the signaling pathways underlying the proliferation of human breast cancer cells and associated signaling pathways and inhibiting signal pathways of NT21MP remained unclear. The present study investigated the mechanism of NT21MP on anti-tumor in breast cancer in vitro. The effect of NT21MP on the viability of cells was determined by the MTT assay. Annexin V-FITC and PI staining was performed to detect early stage apoptosis in SKBR3 cells treated with SDF-1α and AMD3100 or NT21MP. Western blotting techniques were used to assay the composition of phosphoproteomics and total proteins present in the SKBR3 breast cancer cells. RT-PCR and Western blotting technique were used to detect the effect of NT21MP and AMD3100 on Bcl-2 and Bax expression. The results indicated that SDF-1α prevented apoptosis and promoted the proliferation of SKBR3 human breast cancer cells. As compared with untreated SKBR3 cells, Treatment with SDF-1α significantly increased cell viability, and NT21MP abolished the protective effects of SDF-1α dose-dependently (P<0.05). There was a significant decrease in the percentage of apoptotic cells after SDF-1α treatment as compared with control group (2.7%±0.2% vs. 5.7%±0.4%, P<0.05). But pretreatment of SKBR3 cells with NT21MP significantly attenuated the antiapoptotic effects of SDF-1α as compared with SKBR3 cells without NT21MP pretreatment. The proliferative and anti-apoptotic effects of SDF-1α in SKBR3 cells were associated with an increase in AKT and ERK1/2 phosphorylation as well as a decrease in Bax expression and an increase in Bcl-2 expression. These changes in intracellular processes were blocked by NT21MP in a dose-dependent manner(P<0.05). In conclusion, NT21MP efficiently inhibits SDF-1α-induced proliferation and antiapoptosis in SKBR3 cells by reducing the levels of phosphorylated AKT and ERK1/2, as well as decreasing the ratio of expression of Bcl-2 relative to Bax.