2.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.
3.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
4.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.
5.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.
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.Determination of Methanol in Huoxiang Zhengqi Tincture by Headspace-Gas Chromatography
Fang FANG ; Naiying WU ; Xiang LI ; Fei XU
Traditional Chinese Drug Research & Clinical Pharmacology 2009;20(4):351-353
Objective A headspace-gas chromatography method was established for determination of methanol in Huox-iang Zhengqi Tincture. Methods Headspace-gas chromatography was performed on a HP-INNOWAX capillary col-umn, with nitrogen as carrier gas and FID as detector. The injector temperature was at 150℃ and the detector tempera-ture was at 200℃ , and temperature programming and split stream sampling were used. Results A good linearity was obtained within the designed range, the average recovery was 98.89 % with the RSD of 1.36 %, which met the correla-tive criterion of China Pharmacopoeia. Conclusion This method is proved to be accurate, and it has a good reproducibil-ity and can be used to determinate the residual methanol in Huoxiang Zhengqi Tincture.
9.Relative factors for osteonecrosis in the Chinese systemic lupus erythematosus patients:Meta-analysis
Zhengliang LUO ; Xifu SHANG ; Xu LI ; Fei HU ; Rui HE
Chinese Journal of Tissue Engineering Research 2013;(35):6314-6320
BACKGROUND:Systemic lupus erythematosus is a kind of heterogeneous disease, and the difference of clinical features may also be the risk factors of osteonecrosis besides of treatment with glucocorticoids according to the literature. However, it remains controversial on the risk factors of osteonecrosis in systemic lupus erythematosus patients.
OBJECTIVE:To systematical y review the major risk factors of osteonecrosis in the Chinese patients with systemic lupus erythematosus.
METHODS:The CNKI database, CBMdisc database and Wanfang database were retrieved for the published case-control study literatures on the risk factors of osteonecrosis in the Chinese patients with systemic lupus erythematosus. The literatures met the inclusion and exclusion criteria were included, and a Meta-analysis was conducted by RevMan 5.0 and Stata software. Then, the pooled odd ratio and 95%confidence interval of each risk factor were calculated.
RESULTS AND CONCLUSION:Ten case-control study literatures were included involving 332 cases in the case group and 986 cases in the control group. The pooled odd ratio and 95%confidence interval of each risk factor of osteonecrosis in the Chinese patients with systemic lupus erythematosus were as fol ows:Raynaud’s
phenomenon 3.28(1.69-6.38), dental ulcer 2.95(2.13-4.09), renal involvement 1.21(0.83-1.74), vasculitis 5.64(2.84-11.21), hyperlipidemia 5.11(3.10-8.42), anti-phospholipid antibody 2.32(1.49-3.61) and joints involvement
2.02(1.33-3.07). It has been clear that the glucocorticoids is an independent risk factor of osteonecrosis in the patients with systemic lupus erythematosus. However, it is not the one and only risk factor. The fol owing risk factors of
vasculitis, hyperlipidemia, Raynaud’s phenomenon, dental ulcer, positive anti-phospholipid antibody and joints involvement are the risk factors of osteonecrosis in the patients with systemic lupus erythematosus.
10.Adenoviral vector-mediated IGF-Ⅰ gene transfer protects NOD mice from diabetes
Aijing XU ; Zhihong CHEN ; Fei TIAN ; Lihua YAN ; Tang LI
Chinese Journal of Endocrinology and Metabolism 2011;27(2):158-160
To explore the protective effect of adenovirus mediated IGF-Ⅰgene(Ad-IGF-Ⅰ)transfer on non-obese diabetic(NOD)mice. The results showed that the incidence of diabetes and degree of insulitis were significantly reduced in mice receiving Ad-IGF- Ⅰ . Treatment with Ad-IGF- Ⅰ significantly decreased apoptosis rate,expression of Fas and caspase-3, and increased expression of Bcl-xl. This study indicates the potential of IGF- Ⅰ gene therapy in protecting NOD mice from insulitis and apoptosis.