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.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.
7.Metformin improving anxiety-like behaviors through regulation of autophagy following focal cerebral ischemia in rats
Xiaoxian WANG ; Fei LI ; Suo ZHANG ; Yuehua XU
Chinese Journal of Biochemical Pharmaceutics 2015;(8):62-65
Objective To investigate probable effect of metformin on anxiety and autophagy pathway in rats with focal cerebral ischemia . Methods The rats were divided into seven groups:shame group, ischemia group, metformin group, compound C group, compound C +ischemia group, metformin+ischemia group, and metformin+compound C+ischemia group.The rats were administered with metformin 14 days and compound C 30 min pretreatment.The blood glucose level, body mass, neurological score and indicators of elevate plus maze test were recorded of two groups after 72h ischemia-perfusion.The autophagy-related protein of Atg-7, Atg-5, beclin-1 were analysed by Western blot.ResuIts Metformin had no significant effect of body mass and blood glucose level.The prior administration of metformin significantly elevated neurological score in ischemia group (P<0.01).The elevate plus maze test results showed that prior administration of metformin significantly elevated percentage of open-arms detention time in ischemia group (P<0.01), but there was no significant difference in open-arms times.Western blot result showed that prior administration of metformin significantly elevated Atg-7, Atg-5, beclin-1 protein expression in ischemia group (P<0.001).Compound C resist the above effects of metformin (P<0.01).ConcIusion The metformin improves psychological disorders and movement disability through regulation of autophagy following focal cerebral ischemia in rats.
8.Clinical characteristics and survival analysis of 37 cases of breast carcinosarcoma
Chao WU ; Yanxin LI ; Fei PENG ; Wenting XU ; Jun LIU
Chinese Journal of General Surgery 2016;31(1):36-39
Objective To explore the clinical characteristics and prognostic factors of breast carcinosarcoma.Methods Clinical data of 37 breast carcinosarcoma patients treated at Tianjin Cancer Hospital from 1974 to 2014 was analyzed retrospectively.Kaplan-Meier unvariate analysis was used to calculate the survival rate and compare the survival rates.Multivariate factors for survival were analyzed by COX proportional hazards regression model.Results 37 cases of breast carcinosarcoma were all female.The median age was 55 years.Among them 31 cases complained for painless mass,six cases had breast mass with skin ulceration.21 cases were three-negative breast cancer.Ten cases had axillary lymph node metastasis,ten cases had distant metastasis.The 5-year survival rate was 62.3%.Unvariate analysis showed that axillary lymphnodes metastasis (P =0.045) and therapeutic schedule (P =0.016) significantly influenced the oulcome of the patients.COX multivariate analysis validated that the therapy modality was an independent prognostic factor for breast carcinosarcoma(P =0.041).Conclusions Breast carcinosarcoma is rare and has a poor prognosis.ER,PR and HER-2 expressions in most cases are negative.If there is axillary lymph node metastasis,the prognosis is poor.A reasonable and comprehensive treatment can improve the prognosis.
9.Role of tyrosine kinase of mast cell in allergy and its drug target
Fei QIAN ; Tiantian ZHU ; Shuang LING ; Yiming LI ; Jinwen XU
Chinese Pharmacological Bulletin 2015;(4):465-469
The degranulation of mast cells represents a pivotal e-vent in the allergic disorders.The Src family kinases(SFKs)are as a starting signal in the activation of mast cell.Lyn,Fyn and Syk play important regulatory role in the degranulation of mast cells.Regulating SFKs can reduce the degranlation process and inhibit the allergic disorders.Therefore,SFKs inhibitors can be potential drugs in the allergy.It is necessary to study the targeted medicine of SFKs,which will be a new direction of drug develop-ment.
10.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.