2.Effect of static magnetics on adhesion of endothelium and neutrophil and expression of intercellular adhesion molecule-1 with LPS
Fei LI ; Kewei XU ; Haichang WANG
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
Objective To investigate the effects of static magnetics on adhesion of neutrophil and endothelium and expression of intercellular adhesion molecule-1(ICAM-1) on human umbilical vein endothelial cell(HUVEC). Methods HUVEC were exposed to 0.05mT, 0.1mT, 1mT static magnetics adhesion of neutrophil was calculated after HUVEC was stimulated by LPS. Flow cytometry and ELSIA were used to study expression of ICAM-1 on endothelium with stimulating of LPS. Results The adhesion of neutrophil l on HUVEC was attenuated by 0.05mT, 0.1mT static magnetics(58% vs. 40%, 38%, P
3.The Research Progress of Tumor Necrosis Factor Alpha in Multiple Sclerosis and Remyelination
Tianjin Medical Journal 2014;(11):1141-1143
Tumor necrosis factor (TNF)-αis a pleiotropic inflammatory cytokine, which is produced chiefly by acti?vated macrophages. Two forms of TNF-α, soluble and transmembrane, can bind tumor necrosis factor receptor (TNFR) 1 or TNFR2, respectively. Recently, a concept has emerged that TNF-α/TNFR pathway plays an important role in the pathogene?sis of multiple sclerosis and remyelination. TNFR1 induces death of oligodendrocytes via death receptor-mediated apoptosis, which leads to demyelination or other neurodegenerative changes. However, TNFR2 has a positive effect on multiple sclero?sis. It facilitates the proliferation and differentiation of oligodendrocyte precursor cells, thus promoting remyelination.
4.Diagnostic Value of 64-MSCT and 1.5T MRI in Nurseling With Congenital Vascular Rings
Gengwu LI ; Chang WANG ; Jun HU ; Xu LI ; Weimin FEI
Chinese Circulation Journal 2016;31(2):156-160
Objective: To investigate the diagnostic value of 64 multislice spiral CT (64-MSCT) and 1.5T MRI in nurseling with congenital vascular rings.
Methods:We retrospectively studied the diagnostic records of 64-MSCT and 1.5T MRI in 48 nurseling with congenital vascular rings. There were 42 cases received CTA, 12 received MRA and 6 received both CTA and MRA. We classiifed the types of vascular rings by Edwards sketch map of aortic arch embryonic development and trachea wrapping conditions. The diagnostic values of 64-MSCT and 1.5T MRI on vascular rings were compared.
Results: There were 25 patients with complete vascular rings including 3 of double aortic arch, 12 right aortic arch with left subclavian artery and patent ductus arteriosus (PDA), 9 combining with arterial ligament, 1 neck right aortic arch with left subclavian artery combining left PDA;and 23 patients with in-complete vascular rings including 2 pulmonary artery sling, 9 left aortic arch with right subclavian artery combining left PDA, 10 combining with arterial ligament, 1 right aortic arch with left subclavian artery combining right PDA, 1 with innominate artery compressed trachea. There were 32/48 patients combined with cardiac malformations, both 64-MSCT and 1.5T MRI may well reveal the composition and special relationship of vessel rings. The minimum intensity projection (MinIP) and air volume rendering (VR) of 64-MSCT may clearly display the morphology and development of trachea, image fusion technique could directly show the special relationships among vascular rings, trachea and esophagus. While 1.5T MRI was relatively poor to present tracheal image.
Conclusion: 64-MSCT could accurately and comprehensively display the special relationships among the vessels rings, trachea and esophagus;which was the best method for diagnosing the nurseling with vessel rings in clinical practice.
5.Clinicopathological analysis of six cases of bullous systemic lupus erythematosus
Lian WANG ; Mengmeng LI ; Fei XU ; Wei YAN ; Wei LI
Chinese Journal of Dermatology 2017;50(3):182-185
Objective To summarize the clinical features,treatment and prognosis of bullous systemic lupus erythematosus (BSLE).Methods Clinical data were collected from 6 cases of BSLE between May 2009 and September 2015,and were analyzed retrospectively.Results Among the 6 patients,2 were male and 4 were female.The mean age of onset was 34 years.All the 6 patients presented with tense blisters and bullae arising on an erythematous base or normal skin,which were arranged in an annular pattern in 3 patients.The SLE Disease Activity Index (SLEDAI) score was > 4 in all the 6 patients.Histopathological examination showed subepidermal blisters or fissures in all the patients.Direct immunofluorescence (DIF) revealed continuous linear deposition of immunoglobulin G (IgG),IgM and IgA in all the patients,linear deposition of C3 in 4 patients,and linear deposition of Clq in 2 patients at the basement membrane zone (BMZ).All the 6 patients were treated with oral glucocorticoids and hydroxychloroquine,and 2 patients were additionally treated with cyclophosphamide.During the follow-up period,adverse reactions to different extents were observed in the 6 patients.Conclusions BSLE mainly occurs in young and middle-aged people.Histopathologically,subepidermal blisters or fissures can be observed with linear deposition of IgG,IgM,IgA,or C3 along the basement membrane zone on DIF.
6.CpG-ODN Enhances Anti-Tumor Effects of Non-Replicating Vaccinia Virus-Modeified Oncolysates
Fei GUO ; Honglin XU ; Roujian LU ; Jun LI ; Li RUAN
Chinese Journal of Cancer Biotherapy 1994;0(01):-
Objective:To investigate the antitumor effect of CpG-ODN combining non-replicating recombinant vaccinia virus in tumor immunotherapy.Methods: CpG-ODN and constructed vaccinia virus v△11?75 were combined to study the antitumor effects in the walker′s rat tumor model.Results: Recombinant vaccinia virus v△11?75 lost the replicating capacity on human cell line,143TK - cell.The genes between HindⅢ C & K fragment of vaccinia virus TianTan strain were deleted,verified with Southern-blot. In the Walker′s tumor model of Wistar rats,Combinational immunotherapy with CpG-ODN and non-replicating vaccinia virus-modified WRC256 oncolysates resulted in prolonged life span and reduced tumor hyperplasia. Conclusion: CpG-ODN can enhance the antitumor effects of non-replicating vaccinia virus-modified oncolysates,providing a new route of tumor therapy.
8.Value of MR Imaging in Diagnosing Occult Fracture and Associated with Other Injuries of the Knee
Jinming XU ; Xiaoling LU ; Jing LI ; Fei YE
Journal of Practical Radiology 2001;0(09):-
Objective To appraise the value of MR imaging in detecting occult fracture and associated with other injuries of knee. Methods 68 cases with acute knee trauma were underwent radiography and MR imaging examination.Results All 68 cases had negative radiographic results. 83 occult fractures in 68 cases were found by MRI, and 75 occult fractures were located in the lower part of femur and upper part of tibia. Fracture patterns were line shape,arborization. By MR imaging, ligament injuries were showed in 32 cases, menisci injuries were demonstrated in 22 cases, and hydrarthrosis were manifested in 60 cases.Conclusion When knee joint injured patients with obvious clinical symptoms and negative radiographic results, the MRI is the best choice for further examination. It is sensitive in detecting occult fractures and associated with other injuries of knee joint.
9.Clinical study of constrictive pericarditis by tissue strain imaging
Yale HE ; Hongwen FEI ; Yueshuang HOU ; Yan XU ; Weiru LI
Chinese Journal of Ultrasonography 1993;0(03):-
Objective To investigate the characteristics and the diagnostic value of the tissue strain imaging in constrictive pericarditis(CP).Methods Twenty-six patients and thirty controls underwent comprehensive echocardiography with apical four chamber tissue Doppler imaging and strain imaging.Peak strain of the middle segments of the inter-ventricle septum and left ventricular lateral wall was recorded.The peak strain difference and strain ratio between the two segments were calculated.Results In patients with CP peak strain of the left ventricle lateral wall was significantly lower than that of the septum[(-5.60?3.46)% vs(-14.14?4.11)%,P
10.Comparative analysis of Brucellosis epidemic between Shanxi province and the country
Li-hong, XU ; Yong-fei, BAI ; Gui-fen, LIU
Chinese Journal of Endemiology 2012;31(1):84-87
Objective To analyze the Brucellosis incidence and to predict the trends of the disease in Shanxi province and the national in recent years,which could provide the reference for surveillance,prevention and control of the disease.Methods Brucellosis data which was reported monthly during January 2006 and December 2010 in Shanxi province and the data released by Chinese Center for Disease Control and Prevention during January 2005 and December 2010 were collected.Several indexes,such as the annual increasing number,the development rate,growth rate and other indicators were applied to compare Shanxi province with the national Brucellosis epidemic in recent years.What's more,the seasonal autoregressive integrated moving average model (ARIMA) was fitted respectively with the data of Brucellosis incident number reported monthly,so as to predict the prevalence status in the coming two years by verifying the fitting effect.Results Brucellosis prevalence of Shanxi province reached the peak in 2008,and the incidence number was 5397,which was 900 more than 2007.From the onset of decline after 2008,the prevalence decreased by 17.67% (906/5128) in 2010.However,national incidence of Brucellosis kept increasing before 2009 and the prevalence increased rapidly from 2007 to 2008,and the growth rate reached 39.16% (8442/21 560).Although the number of Brucellosis fell by 2041 cases in 2010 than in 2009,the rate of decline was only 5.14%(2041/37 734).The fastigium of Brucellosis was from May to July yearly whether Shanxi province or the country.The ARIMA models of Shanxi province and the nation were ARIMA [(1,0,1)(1,1,0)12] and ARIMA[(1,0,1)(0,1,1)12],respectively,according to the incidence numbers reported monthly.The fitting effect of models showed that the predicted values of the two models were both consistent with the actual situation and all predicted values fell within the 95% confidence limits,which depicted that they both fitted well.The predicted values depict that the incidence of Brucellosis overall trend was basically stable in Shanxi province,while the numbers in the nation would increase in a small extent in 2011 and 2012.The fastigium of Brucellosis was still from May to July yearly.Conclusions Brucellosis control measures are effective in Shanxi province,incidence of Brucellosis declining.The ARIMA model could predict the number of Brucellosis well,which can provide a valuable reference for the predication and evaluation of Brucellosis epidemic in the future.