1.Treatment of anemia following living-related intestinal transplantation
Gang JI ; Weizhong WANG ; Weiliang SONG ;
Chinese Journal of Organ Transplantation 1996;0(03):-
Objective To summarize the practical experience of 2 cases of anemia following living related intestinal transplantation.Methods The clinical data of 2 cases of anemia following living related intestinal transplantation were studied retrospectively. After the surgical procedure regiments of blood transfusion, hemostasia, to cut down the dosage of some drug, to fill up raw material of hematopoientic system and requisite nutrition support were used to treat the patients. Results Four weeks later, the diseased conditions of the two patients became better and better. The index of hemoglobin were increased remarkably, to normal level 100 to 120?g/L.Conclusion Anemia is one of the common syndrome in living related intestinal transplantation. The correction of anemia is very important in treating such patients.
2.The role of CD2 in acute rejection after small bowel transplantation in rats
Gang JI ; Yan LIN ; Weizhong WANG
Chinese Journal of Organ Transplantation 2003;0(01):-
Objective To investigate the expression of CD2 in peripheral blood T lymphocytes in acute rejection after small bowel transplantation (SBT) in rats.Methods Three groups were set up: Group A (n=18), receiving sham operation and feeding of common feedstuff; Group B (n=18) receiving SD rat to SD rat iso-series SBT and the treatment of routine liquid infusion and antibiotics after operation; Group C (n=18) receiving SD rat to Wistar rat taniso-series SBT and the same post- operation treatments as in group B. Samples of grafts and peripheral blood in the three groups were collected on the day 3, 5 and 7 respectively after SBT for detection of flow cytometry. The intestinal grafts were obtained for pathological examination.Results The survival time of rats in group C, group B and group A was 7.0? 2.1, 33.3? 2.3 and more than 90 days, respectively. There was significant difference between group C and groups A, B (P
3.Improvement of Model Establishment of Abdominal Heterotopic Heart Transplantation in Rats
Fan YANG ; Weizhong WANG ; Gang ji
Chinese Journal of Rehabilitation Theory and Practice 2007;13(10):926-927
Objective To establish the model of abdominal heterotopic heart transplantation and grope steady operation methods.Methods The heart transplantation was performed in the control group(group A) and experiment group(group B) with 30 rats in each group.Another 30 animals not performed the operation were as the blank group(group C).During the procurement of the donor heart saline solution containing heparitin was injected into the inferior vena cava of liver.At the same time abdominal aorta was transected.Then heart was perfused until it stopped.The activity of superoxide dismutase(SOD) and content of malondialdehyde(MDA) in blood was measured after transplantation.Results The total perfusion time of the graft was shortened within 2 min and hot ischemia time was shortened within 25 s in the group B.The activity of SOD and content of MDA between two groups was significantly different(P<0.05).Conclusion The perfusing method improved with new technique is quicker and more effective than the traditional one and results in the successful rate improvement.
4.The accommodation of nutrition after living-related small bowel transplantation
Gang JI ; Guanglong DONG ; Hongwei ZHANG ; Weizhong WANG
Parenteral & Enteral Nutrition 1997;0(02):-
Objective:To investigate appropriate accommodation of nutrition after living-related small bowel transplantation.Methods: According to the function of allograft and general body state,TPN was used and gradually transferred to PN+EN,finally to TEN.The clinical and laboratory nutrition markers in 4 recipients were observed.Results: 2 recipients survived over 4 years,various kinds of nutrition markers were normal,and the health status was good.One recipient died of acute pulmonary infarction at 19 days.Another recipient died of multiple system organ infection at 5 months.Conclusion: EN cand promote restoration of allograft function.
5.Characteristics of gamma-delta T cells as antigen-presenting cells during transplantation rejection
Xi ZHANG ; Weizhong WANG ; Guanglong DONG ; Hongwei ZHANG ; Gang JI
Chinese Journal of Tissue Engineering Research 2009;13(53):10477-10480
BACKGROUND: A latest research indicates that γ~δ T cells following touching with microbe products show characteristics as dendritic cells and antigen-presenting cells (APC) and induce intensive immune response of CD4~+ CD8~+ γ~δ T cells.OBJECTIVE: To verify APC-like functions of γ~δ T cells during transplantation rejection, investigate a simple and effective method to amplify γ~δ T cells in vitro, and to infect γ~δ T cells with FasL retrovirus system.DESIGN, TIME AND SETTING: An animal experiment was performed at Central Laboratory of the First Affiliated Hospital of the Fourth Military Medical University of Chinese PLA from August 2007 to August 2008. MATERIALS: A total of 60 healthy adult Wistar rats of clean grade and weighing 200-320 g were used to establish donor and receptor models with segmental heterotopic small intestine transplantation.METHODS: Models of segmental heterotopic small intestine transplantation were established using three sleevelet vascular anastomosis. γ~δ T cells were obtained using flow cytometry and its function was demonstrated. Mononuclear cells were routinely separated and amplified with Mtb-Ag. MAIN OUTCOME MEASURES: Cell proliferation was observed; percentage of γ~δ T cells for lymphocytes was detected using TCRγ~δ magnetic beads kit; γ~δ T cells following transfection were detected using pLXSN FasL retrovirus system. RESULTS: Activated γ~δ T cells showed dendritic cell-like adhesion function and APC-like functions during transplantation rejection. γ~δ T cells accounted 4.5% for mononuclear cells, the purification of γ~δ T cells was up to 72.2% on the 10~(th) day after activated by Mtb-Ag, and the purification of γ~δ T cells was up to 99.1% through positive magnetic sorting. 285 bp FasL fragment demonstrated that the gene integration was observed in PA317 cells. The ration of FasL+ cells was 97.3% after infected by pLXSN FasL retrovirus system.CONCLUSION: This study demonstrated APC-like functions of γ~δ T cells during transplantation rejection. γ~δ T cells were successfully amplified in vitro. PA317/ pLXSN2FasL+ retrovirus system was successfully constructed and γ~δ T cells were modified by FasL retrovirus system.
6.Association between polymorphism of leptin receptor gene and serum leptin in asthma
Wei LIU ; Xia JI ; Weizhong ZHANG ; Fenghua WANG ; Weiyi ZHANG
Clinical Medicine of China 2013;29(11):1147-1150
Objective To investigate the relationship between leptin receptor(LEPR) gene Gln223Arg in polymorphism and serum leptin level of patients with asthma.Methods A case-control study was conducted.One hundred and ninety-two asthma patients were recruited from asthma gene library,among them 100 patients only with asthma(asthma group) and 92 patients with both asthma and metabolic syndrome(asthma complicated with metabolic syndrome group).And 108 normal people were selected as control group.Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to detect the polymorphism of LEPR gene Gln223Arg locus.Serum leptin levels were measured by enzyme-linked immuno sorbent assay,its relationship with asthma was analyze.Results The frequencies of genotype GG,GA,AA in asthma group,asthma complicated with metabolic syndrome group and normal control group were (83.00% (83/100) vs.83.70% (77/92) vs.70.37% (76/108),15.00% (15/100) vs.15.22% (14/92) vs.27.78% (30/108),and2.00% (2/100) vs.1.08% (1/92) vs.1.85% (2/108) respectively).G and A alleles in asthma group,asthma complicated with metabolic syndrome group and normal control group were 90.50% vs.91.30%vs.84.26%,9.50% vs.8.70% vs.15.74% respectively.Compared with the control group,GG genotype and GA + AA genotype were different between in asthma group and asthma complicated with metabolic syndrome group.The patients with GG genotype showed 2.056 (x2 =4.599,P =0.032,OR =2.056,95% CI =1.057-3.999) and 2.161 folds (x2 =4.907,P =0.027,OR =2.161,95 % CI =1.084-4.311) risk in asthma group and asthma complicated with metabolic syndrome group than that with GA + AA genotype.In terms of leptin levels,in asthma group,female were significant higher than that of control group (P =0.037,P =2.93),while in asthma complicated with metabolic syndrome group,male and female were significantly higher than control group (P =0.001,0.000 ; P =4.530,4.690).Conclusion The polymorphisms of LEPR gene locus Gln223 Arg are related with asthma.Genotype GG carrier is susceptible for the disease.In female,serum leptin is positive relationship with asthma group,especially in asthma complicated with metabolic syndrome.
7.Amplification and functional identification of immature dendritic cells from rat bone marrow in vitro
Jipeng LI ; Yi HUANG ; Weizhong WANG ; Guanglong DONG ; Jianjun DU ; Dongli CHEN ; Gang JI ; Ji LIU
Chinese Journal of General Surgery 2001;0(09):-
Objective To establish a method for amplification of immature dendritic cells(DC) from murine bone marrow in vitro and investigate correlations between maturation degree of DC and varying dosages of granulocyte-macrophage-colony stimulating factor(GM-CSF).Methods Dendritic cells from murine bone marrow were cultured with different dosages of rm GM-CSF.The suspension cells were examined with scanning electronic microscope,and the non-sensitized T lymphocyte proliferation was observed by mixed lymphocyte reaction.Results DC cultured in lower dosage of rmGM-CSF(GMlow DC) exhibited typical characteristics of DC,and had immature characteristics in cell phenotype and cell functions with high expression of CD11c and low expression of CD80,CD86 and MHC II on the surface of the cells.The ability of GmlowDC to stimulate the proliferation of non-sensitized T lymphocyte in vitro was weaker than that of GmhighDC.Conclusions The methods of immature DCs culturing establised by allthors was feasible.The dosage of rm GM-CSF has a direct relationship with the maturation degree of DC.
8.Imaging appearance of primary hepatic neuroendocrine carcinomas
Dongqing WANG ; Mengsu ZENG ; Shengxiang RAO ; Yuan JI ; Weizhong CHENG ; Shan YANG ; Jia FAN
Chinese Journal of Radiology 2008;42(5):464-466
Objective To investigate the CT and MRI findings of primary hepatic neuroendocrine carcinomas.Methods Imaging findings of 6 patients with pathologically confirmed hepatic neuroendocrine carcinomas were retrospectively analyzed.Four patients underwent plain CT and contrast enhanced CT examinations.The other 2 patients underwent plain MRI and contrast enhanced MRI.Results One out of the 6 cases manifested multicentric tumor which appeared as one large tumor surrounded with multiple small nodules peripherally,and the tumors of the other 5 cases were solitary.On plain CT images,all lesions were well-defined and hypoattenuating with central areas of even lower density except punctuate calcifications at tumor periphery in 1 case.On pre-contrast MRI,the cases manifested heterogeneous low signal intensity on T1 wI and slightly high intensity on T2 WI.On dynamic contrast enhanced CT and MRI,Tumors manifested slight to mild enhancement in arterial phase,slight enhancement in portal venous phase or delayed phase with no enhancement in the center,accompanied by dislocation of surrounding vessels.There Was no lymphadenopathy in peritoneal cavity and retroperitoniurm. Conclusion CT and MRI scanning can demonstrate specific features of primary hepatic neuroendocrine carcinoma,which may help the diagnosis and differential diagnosis of the tumor.
9.CT findings of pancreatic mucinous neopalsms
Weizhong CHENG ; Mengsu ZENG ; Jianjun ZHOU ; Shengxiang RAO ; Yuan JI ; Dayong JIN
Chinese Journal of Radiology 2008;(3):298-301
Objective To analyze the CT appearances with pathologic correlation and improve the recognition of pancreatic mucinous cystadenoma/cystadenocarcinoma.Methods CT findings in 20 patients with pathologically proven pancreatic mucinous cystic tumor were retrospectively and jointly reviewed by two observers blinded to the pathological results.All patients underwent precontrast and postcontrast helical CT.The number,size,location,and margins of the lesions were observed,along with wall thickness,septation,calcification witllin the lesions.and presence of mural nodules and their enhancement.The findings of malignant and benign tumors were compared.Results Twelve cases of mucinous cystadenoma.3 borderline cystadenomas and 5 cystadenocacinomas were included in this study.Sixteen tumors(16/20)were located at pancreatic body or tail.The findings of thick walsl,calcifications and mural nodules appeared in 4,2 and2 cases respectively in benign mucinous cystic tumors,while appeared in 7,5,and 5 cases respectively in malignant mucinous cystic tumom.Presence of tIlick walls.calcifications and mural nodules in the lesions were significantly associated with malignancy(P<0.05).Conclusion CT manifestations of pancreatic mucinous neoplasm are variable,but has some specific radiographic features.A combination of CT findings is helpful ifl differentiation of malignant and benign pancreatic mucinous adenomas.
10.Voxel-based morphometry on brain structures in Parkinson’s disease patients with mild cognitive impairment
Jianguo XIA ; Weizhong TIAN ; Jinhua CHEN ; Ji ZHANG ; Ning WANG ; Ying LIU ; Lu WANG
Journal of Practical Radiology 2017;33(2):173-177
Objective To investigate the abnormal region of gray matter and distribution in patients with Parkinson’s disease (PD),and explore the brain structural changes closely related to mild cognitive impairment(MCI).Methods 20 cases of PD-MCI, 1 7 cases of PD-nMCI and 20 normal controls (NC)were examined by 3D-T1 WI brain volume sequence.The data of three groups were analyzed using voxel-based morphometry(VBM)based on SPM8 to generate gray matter map.Results Compared to NC,decreased gray matter volume in PD-nMCI was observed in the right temporal lobe,including the middle temporal gyrus,inferior temporal gyrus,and right fusiform gyrus,uncus and left superior temporal gyrus.Compared to PD-nMCI,decreased gray matter volume in PD-MCI was observed in the bilateral midfrontal gyrus,inferior frontal gyrus,left precentral gyrus,right midtemporal gyrus,superior temporal gyrus,bilateral insular,and right cuneus,lingual gyrus,posterior cingutate.Conclusion Decreased gray volume in PD-nMCI is mainly located in the right temporal lobe and right uncus.With occurrence of MCI,abnormal brain regions are gradually extended.Gray matter atrophy in the bilateral midfrontal gyrus,inferior frontal gyrus,and left precentral gyrus are related to the MCI.