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1.
Chinese Journal of Hematology ; (12): 908-911, 2018.
Article in Chinese | WPRIM | ID: wpr-810268

ABSTRACT

Objective@#To explore the diagnosis, treatment and prognosis of autoimmune hemolytic anemia (AIHA) after allo-HSCT in patients with thalassemia major (TM).@*Methods@#A retrospective analysis of AIHA status after allo-HSCT in 291 TM patients from July 2007 to December 2017 was conducted.@*Results@#Five of the 291 TM patients (1.72%) were diagnosed with post-transplant AIHA. The median time of AIHA was 7 (5-12) months after HSCT. All post-transplant AIHA patients were positive in direct and indirect Coombs test, the main clinical manifestations were dizziness, fatigue, pale complexion, skin and sclera yellow, and soy sauce urine. The incidence of AIHA was higher after unrelated donor transplantation (6.36%, 4/63) compared with that of sibling donor transplantation (0.43%, 1/228). One patient who received only prednison was dead. Four patients who received rituximab combined with prednisolone were alive, Coombs test in two of them were negative.@*Conclusions@#AIHA after allo-HSCT developed in 1.72% patients with TM. Monitoring of Coombs test was important for diagnosis of post-transplant AIHA. The incidence of post-transplant AIHA was higher in unrelated donors compared with that of sibling donors transplantation. Treatment of rituximab combined glucocorticoid was effective strategy for post-transplant AIHA.

2.
Chinese Journal of Interventional Imaging and Therapy ; (12): 209-212, 2018.
Article in Chinese | WPRIM | ID: wpr-702393

ABSTRACT

Objective To explore the risk factors of pulmonary hemorrhage in patients undergoing CT-guided percutaneous lung biopsy.Methods Data of 347 patients who underwent CT-guided percutaneous lung biopsy were retrospectively reviewed.Clinical factors that might cause pulmonary hemorrhage,including age,gender,whether combine with emphysema,main pulmonary artery diameter,and whether or not taking antiplatelet drugs,puncture frequency,needle angle,maximum diameter,morphology,as well as the distance between lesion and pleural were analyzed.Results Among 347 patients,168 patients developed pulmonary hemorrhage after the procedures (hemorrhage group),including 25 patients with hemoptyses and 1 patient with hemopneumothorax.Compared with non hemorrhage group,ratio of female (P=0.010),of emphysema (P=0.016) and of sub-solid lesions (P=0.036) were higher in hemorrhage group,while lesions' diameter was smaller (P=0.003) and ratio of subpleural lesions was lower (P<0.001) in hemorrhage group.The difference of pulmonary hemorrhage ratio between patients with enlarged main pulmonary artery diameter at CT (≥2.9 cm) or not had no statistical significance (x2 = 0.011,P= 0.915).Conclusion Pulmonary hemorrhage after CT-guided percutaneous lung biopsy is common but rarely need clinical treatment.Enlarged main pulmonary artery diameter at CT (≥2.9 cm) is not the risk factor of pulmonary hemorrhage after puncture.

3.
Chinese Journal of Internal Medicine ; (12): 483-486, 2018.
Article in Chinese | WPRIM | ID: wpr-710080

ABSTRACT

Objective To analyze the outcome and the prognostic factors of hepatic veno-occlusive disease (HVOD) after hematopoietic stem cell transplantation (HSCT). Methods A total of 797 patients receiving HSCT were analyzed retrospectively. The prophylaxis regimen of HVOD in the First Affiliated Hospital of Guangxi Medical University consisted of low molecular weight heparin and lipoprostaglandin E1 (PGE1). Results Fifty-nine patients (7.4%) developed HVOD at 3-49 days after HSCT (median 12 days). Age younger than 15 years at transplant( HR=6.47, P<0.001), busulphan conditioning ( HR=6.40, P<0.001), thalassemia major ( HR=6.35,P<0.001), allogeneic transplantation ( HR=7.74, P=0.005) were univariate risk factors for HVOD. Multivariate analyses suggested that thalassemia major and busulphan conditioning were independently correlated with the development of HVOD. Conclusion Thalassemia major and busulphan conditioning are independent risk factors for HVOD after HSCT.

4.
Chongqing Medicine ; (36): 3605-3607,3610, 2017.
Article in Chinese | WPRIM | ID: wpr-659082

ABSTRACT

Objective To investigate the protective effects and possible mechanism of pigment epithelium derived faetor (PEDF) on myocardial cells H9C2 under hypoxia and serum-free condition.Methods H9C2 cells were culture in vitro and performed the hypoxia and serum-free processing.The cells were divided into the control group (H9C2),hypoxia group (hypoxia + H9C2),PEDF group(hypoxia+H9C2 +PEDF) and mitochondrial fission inhibitor(Mdivi-1) group(hypoxia+h9C2+Mivi-1).The apoptotic rate was detected by TUNNEL staining.The proteins levels of dynamin related peptide1 (Drp1) and cleaved-caspase 3 were measured by Western blot.Electron Microscopy and MitoTracker Red were used to detect the mitochondria morphology,the mitochondrial membrane potential was evaluated by cationic dye JC-1.MitoSOXTM was used to detect mitochondrial reactive oxygen species (ROS).Results Hypoxia induced mitochondrial fission(P<0.05).The hypoxia group (6 h) and control group had statistical difference(P<0.05).PEDF reduces mitochondrial fission under hypoxia condition(P<0.05),which had statistical difference between the PEDF group and hypoxia group (6 h)(P<0.05).PEDF and Mdivi-1 could decrease cell apoptosis under hypoxia condition(24 h),compared with the hypoxia group,the difference was statistically significant(P<0.05).Conclusion PEDF decrease cell apoptosis by inhibiting H9C2 cells mitochondrial fission under hypoxia condition.

5.
International Journal of Laboratory Medicine ; (12): 2048-2050, 2017.
Article in Chinese | WPRIM | ID: wpr-608844

ABSTRACT

Objective To analyze the specimen types,ward distribution and risk factors for infections caused by extended-spectrum β-lactamase(ESBLs)-producing-Escherichia coli(ECO) in recent two years,so as to provide bacteriological basis for both hospital infection control and clinical anti-infection treatment.Methods Non-repetitive 443 ECO strains isolated from the hospitalized patients in the Third People′s Hospital of Shenzhen were collcted,and the phoenix100 system was employed for bacterial identification and antimicrobial susceptibility tests.ESBLs-ECO was further confirmed by the double-disk synergy test,and the risk factors caused ESBLs-ECO were statistically analyzed.Results A total of 115 strains of ESBLs-ECO were identified among the 443 strains of ECO,which accounted for 26.0%.The ESBLs-ECO strains were mainly isolated from the sputum,urine,and blood specimens.Among the isolated ESBLs-ECO strains,20.9% were isolated from the department of Tuberculosis,13.9% from the department of pediatric,12.2% from the department of live disease,and 8.7% from the department of infection.The male sex,surgery and use of the third generation cephalosporins were independent risk factors of ESBLs-ECO infection.Conclusion The isolation rate of ESBLs-ECO in this hospital is high.It is necessary for the hospital to strengthen the control of nosocomial infections according to the risk factors.More attention should be payed on male patients,the standardization of surgical operation and disinfection,and the restriction of using the third generation cephalosporins,so as to reduce the incidene of ESBLs-ECO infections.

6.
Chongqing Medicine ; (36): 3605-3607,3610, 2017.
Article in Chinese | WPRIM | ID: wpr-661947

ABSTRACT

Objective To investigate the protective effects and possible mechanism of pigment epithelium derived faetor (PEDF) on myocardial cells H9C2 under hypoxia and serum-free condition.Methods H9C2 cells were culture in vitro and performed the hypoxia and serum-free processing.The cells were divided into the control group (H9C2),hypoxia group (hypoxia + H9C2),PEDF group(hypoxia+H9C2 +PEDF) and mitochondrial fission inhibitor(Mdivi-1) group(hypoxia+h9C2+Mivi-1).The apoptotic rate was detected by TUNNEL staining.The proteins levels of dynamin related peptide1 (Drp1) and cleaved-caspase 3 were measured by Western blot.Electron Microscopy and MitoTracker Red were used to detect the mitochondria morphology,the mitochondrial membrane potential was evaluated by cationic dye JC-1.MitoSOXTM was used to detect mitochondrial reactive oxygen species (ROS).Results Hypoxia induced mitochondrial fission(P<0.05).The hypoxia group (6 h) and control group had statistical difference(P<0.05).PEDF reduces mitochondrial fission under hypoxia condition(P<0.05),which had statistical difference between the PEDF group and hypoxia group (6 h)(P<0.05).PEDF and Mdivi-1 could decrease cell apoptosis under hypoxia condition(24 h),compared with the hypoxia group,the difference was statistically significant(P<0.05).Conclusion PEDF decrease cell apoptosis by inhibiting H9C2 cells mitochondrial fission under hypoxia condition.

7.
International Journal of Laboratory Medicine ; (12): 2081-2083, 2016.
Article in Chinese | WPRIM | ID: wpr-495717

ABSTRACT

Objective To compare the difference of peripheral blood leucocyte percentages in malaria patients among Sysmex‐XE5000 ,CellaVisionDM96 and manual microscope classification ,and to verify the accuracy and reliability of the Sysmex‐XE5000 automatic blood corpuscle detection instrument for detecting the leukocyte classification in blood routine .Methods The leucocyte percentages data in 82 cases of malaria detected by using the Sysmex‐XE5000 in the Shenzhen Municipal Third People′s Hospital from January 2011 to December 2015 were retrospectively collected ;the peripheral blood smear in 82 cases of malaria obtained the percentages after the classification by the CellaVisionDM 96 ;then the peripheral blood smear was performed the leucocyte classifica‐tion by the manual microscopy for calculating the percentage .Results In the pairwise comparison of percentage obtained from the peripheral blood leucocyte classification by Sysmex‐XE5000 ,CellaVisionDM96 and manual microscopy ,only the monocytes percent‐age had statistical difference between CellaVisionDM 96 and manual microscopy (P0 .05) .Conclusion By comparing the peripheral blood leucocyte percentages data in malaria patients by Sysmex‐XE5000 ,CellaVisionDM96 and manual microscopic classification ,it is indicated that the leukocyte classification data by Sysmex‐XE5000 are accurate and reliable ,malaria parasite does not affect peripheral blood leukocyte classification ,but it is necessary to pay more attention to monocytes classification in CellaVision DM 96 classification .

8.
Chinese Journal of Organ Transplantation ; (12): 82-86, 2015.
Article in Chinese | WPRIM | ID: wpr-468860

ABSTRACT

Objective To analyze the outcomes and the prognostic factors of allogeneic peripheral blood stem cell transplantation (allo-PBSCT) for acute lymphoblastic leukemia (ALL).Method From Feb.2002 to Feb.2014,a total of 95 patients with ALL were treated with alloPBSCT in our hospital.Of these,73 cases obtained the first CR (CR1),11 cases obtained late CR,7 patients were in relapse and 3 patients suffered from primarily refractory disease (PRD) before transplant.The median age was 26 (4-57) years.Conditioning regimens including total body irradiation (TBI)/ etoposide/semustine/cyclophosphamide or busulfan/semustine/cyclophosphamide were used.Matched sibling transplantation was performed on 68 patients,and matched unrelated donor transplantation was performed on 27 patients.Combination of CsA,MTX and low-dose,short-course mycophenolate mofetil was used for graft-versus-host disease (GVHD) prophylaxis.The average fellow-up was 57 months.Result Hematopoietic reconstitution was achieved in all 95 patients.Five-year estimate of overall survival (OS) was 54.3%,disease free survival (DFS) was 51.2%,relapse rate (RR) was 30.2% and transplant-related mortality (TRM) was 24.0%.The 5 year OS and DFS were significantly longer in patients with CR1 than in late CR and relapse/PRD patients before allo-PBSCT (P<0.001).There was no significant difference in OS between the two different conditioning regimens.Multivariate analyses revealed that Ⅱ-Ⅳ aGVHD and cGVHD were correlated with higher TRM,CR1 before allo-PBSCT and TBI were associated with a lower RR,and non Ⅱ-Ⅳ aGVHD and CR1 before allo-PBSCT were favorable factors which were associated with OS and DFS.In the patients with DFS≥1 year after allo-PBSCT,DFS and OS were shorter in patients with cGVHD (P =0.008).Conclusion Allo-PBSCT in adult ALL patients should be performed in CR1.Severe acute and chronic GVHD are not associated with improved survival.

9.
Chinese Journal of Postgraduates of Medicine ; (36): 27-29, 2012.
Article in Chinese | WPRIM | ID: wpr-425427

ABSTRACT

ObjectiveTo investigate the changes and values of serum high-sensitivity C-reactive protein (hs-CRP) and cardiac troponin I (cTnI) in patients with chronic heart failure.MethodsEighty patients with chronic heart failure (heart failure group) were divided into NYHA heart function Ⅲ grade ( 40 patients) and Ⅳ grade (40 patients).Eighty healthy people were included in control group.The levels of serum hs-CRP and cTnI were measured and compared.ResultsBefore treatment,the levels of hs-CRP and cTnI in heart failure group [ ( 11.56 ± 2.72) mg/L,(0.46 ± 0.11 ) μ g/L] were significantly higher than those in control group [ (2.31 ± 0.56) mg/L,(0.04 ± 0.13 ) μg/L ] (P < 0.01 ).The levels of hs-CRP and cTnI in heart function Ⅳ grade patients [ ( 13.07 ± 4.31 ) mg/L,(0.57 ± 0.05 ) μg/L] were significantly higher than those in heart function Ⅲ grade patients [(10.04 ±3.12) mg/L,(0.35 ±0.09) μg/L](P<0.01).After treatment,the levels of hs-CRP and cTnI in heart function Ⅲ grade and Ⅳ grade patients were significantly decreased compared with those before treatment(P< 0.01 ).ConclusionsThe levels of hs-CRP and cTnI in chronic heart failure patients are related to the inflammatory activities and myocardial damage.hs-CRP and cTnI may be effective factors to reflect the severity of heart failure.

10.
Chinese Journal of Radiology ; (12): 812-816, 2011.
Article in Chinese | WPRIM | ID: wpr-421769

ABSTRACT

Objective To investigate MRI manifestations of lumbar and proximal femoral bone marrow changes before and after recombinant human granulocyte colony stimulating factor (rhG-CSF) was subcutaneous injected for healthy adults.Methods Twenty healthy blood stem cell donors without hematologic disease were enrolled in this study. All of them underwent lumbar sagittal and proximal femur coronal MRI examination with spin echo T1 WI and fat-suppressed T2WI.The first examination were performed before subcutaneous injection of rhG-CSF for comparison. In 4-7 days and 30-60 days after injection, the other two examinations were performed. The signal changes of lumbar and proximal femoral bone marrow were investigated by reading pictures and calculating the contrasted noise ratio (CNR).ResultsBefore rhG-CSF injection, all patients presented normal signal intensity of hone marrow. In 4-7 days after injection, all the 20 cases presented homogeneous signal decrease in lumbar vertebral bodys on T1 WI, accompanied by reduced fatty signal. In proximal femur, patchy or stripped hypointensity areas were found in intertrochanteric and subtrochanteric areas on T1 WI. On fat-suppressed T2 WI images, the signal of lumbar and proximal femoral bone marrow changed to equal or slightly-high signal intensity. In all cases,abnormal signal areas presented in lumbar and proximal femoral bone marrow occurred simultaneously in the same case.In the 10 cases received the third MRI during 30-60 days after rhG-CSF injection, signal intensity of lumbar bone marrow turned to normal in all sequence, but abnormal signal intensity areas were still existed and extended to distal part in femoral bone marrow, which appeared as symmetric stripped or patchy equal or slightly-low signal intensity on T1 WI and equal or slightly-high signal intensity on T2 WI. The CNR of lumbar bone marrow to subcutaneous fat before rhG-CSF injection, in 4-7 days and 30-60 days after rhG-CSF injection were 114. 11 ± 15. 11,71.04 ± 12. 25 and 91.64 ± 1 I. 68, respectively. Significant difference was found between before rhG-CSF injection and 4-7 days after injection ( P < 0. 05 ) , but no significant difference between the others( P > 0. 05 ). Conclusion After injection of rhG-CSF, the short-term changes of hematopoietic cells and fat content in bone marrow can be displayed on MRI, which provided non-invasive information for bone marrow transplantation.

11.
Chinese Journal of Organ Transplantation ; (12): 144-147, 2011.
Article in Chinese | WPRIM | ID: wpr-413553

ABSTRACT

Objective To investigate the effect of allgeneic hematopoietic stem cell transplantation (allo-HSCT) for β-thalassemia major. Methods Twenty-four β-thalassemia major patients with median age of 4 years (range: 2~15 years), 18 boys and 6 girls, received allo-HSCT.They were classified into class Ⅱ-Ⅲ according to Pesaro thalassemia classification. Twenty-three transplantations were from sibling donor and 1 was from mother, either HLA-identical (n = 23) or HLA-mismatched (5/6) (n = 1). Fifteen patients received bone marrow transplantation (BMT) plus peripheral blood stem cell transplantation (PBSCT), and 9 were subjected to umbilical cord blood transplantation (UCBT). The conditioning regimen consisted of busalphan, cyclophosphamide,fludarabine, plus hydroxyurea before transplantation. Graft-versus-host disease (GVHD) prophylaxis included CsA, methotrexate, antilymphpcute globulin, and mycophenolate mofetil. The median follow-up period was 13 months (range: 3~69). Results Of 24 patients, there were 21 cases (87. 5 %) of disease-free survival, 1 (4. 2 %) transplantation-related death, and 2 cases (8. 3 %) of rejection. Three-year overall survival and disease-free survival rate was 91.7 % and 87. 5 %respectively. The cumulative incidence of grade Ⅱ -Ⅳ acute GVHD and chronic GVHD was 16. 7 %and 20. 3 %, particularly cumulative extensive chronic GVHD was 5. 0 %. Conclusion The sibling donor BMT plus PBSCT is an effective and safe way to treat β-thalassemia major. Cord blood is an important source of hematopoietic stem cells for HSCT. The protocol GVHD prophylaxis of CsA,MTX, ATG with a low-dose and short course of MMF can effectively reduce the incidence of severe acute GVHD, improve the outcome of thalassemia transplantation.

12.
Journal of Pharmaceutical Analysis ; (6): 260-264, 2010.
Article in Chinese | WPRIM | ID: wpr-553172

ABSTRACT

Objective To study the inhibitory action of docetaxel (DOC) on the proliferation of HeLa and SiHa cells. Methods Cell morphological changes were observed with inverted phase contrast microscope. MTT was adopted to test and calculate the cell inhibition ratio. Flow cytometry was used to detect cell cycle. Results DOC had an obvious concentration-dependent inhibitory effect on the proliferation of both HeLa and SiHa cells. The inhibition ratio of DOC on SiHa was significantly higher than that on HeLa (P<0.05). DOC blocked HeLa at G2/M phase. Under the effect of DOC, the cell cycle of SiHa was not changed much. Conclusion DOC has an obvious inhibitory action on both HeLa and SiHa cells, which shows a promising prospect of DOC in clinical treatment of cervical cancer.

13.
Journal of Pharmaceutical Analysis ; (6): 161-166,170, 2006.
Article in Chinese | WPRIM | ID: wpr-625007

ABSTRACT

Objective To identify the mRNA sequence, genetic construction, imprinting status, and expression profile of human MURR1 gene, the homologue of mouse imprinted Murr1 gene. Methods The MURR1 mRNA sequence was identified by colony hybridization screening of human cDNA library and the 5'-RACE analyses; Absence of U2AF1-RS1 gene within MURR1 was confirmed by Southern Blotting; Expression profile of MURR1 was examined by Northern Blotting; The imprinting status of MURR1 were revealed by SNP investigation and RT-PCR followed by sequencings and RFLP analyses. Results The full-length mRNA sequence of MURR1 spans 711 bp, transcribed from 3 exons, encodes predicted MURR1 protein of 190 amino acids. The gene was expressed in all the 12 kinds of human adult tissues and 6 kinds of fetal tissues. It showed biallelic expression in all 32 investigated samples including 6 kinds of human fetal tissues and 8 adult brains. Unlike mouse imprinted U2af1-rs1 gene existing in the intron of Murr1, the human U2AF1-RS1 gene was not located in the MURR1 locus. Conclusion Human MURR1 gene is not imprinted and the non-imprinting is possible due to the absence of human homologue of mouse U2af1-rs1 within MURR1 locus.

14.
Chinese Journal of Tissue Engineering Research ; (53): 160-161, 2005.
Article in Chinese | WPRIM | ID: wpr-409084

ABSTRACT

BACKGROUND: Nitric oxide (NO) is synthesized by catalysis of nitric oxide synthase (NOS). Three distinct isoforms of NOS have been detected in different structures of the guinea pig cochlea. However, there are still rather controversies about the definite localization and expression of NOS isoforms in guinea pig cochlea.OBJECTIVE: To investigate localization and expression of three NOS isoforms in the cochlea of guinea pigs, and to explore the effect of NO on auditory physiology and pathophysiology of inner ear.DESIGN: An observed and controlled study.SETTING: Department of Physiology, Jinzhou Medical College; Department of Orthopedics, the Second Affiliated Hospital of Jinzhou; Department of Otorhinolaryngology, Jinzhou Central Hospital.MATERIALS: The study was performed in Hearing Research Laboratory of China Medical University from May to November 2000. Ten healthy male albino guinea pigs, with body mass of 250-300 g, with sensitive Preyer's reflexes and normal drum membrane and external auditory canal,were selected.METHODS: After anesthesia, guinea pigs were decapitated and the temporal bones were removed immediately. The round and oval windows were opened, perfused with 40 g/L paraformaldehyde, and the specimens were immersed in the same fixative solution for 2 hours. Decalcification of the cochleae was performed in 100 g/L EDTA solution for 1 week. Then the specimens were placed in 250 g/L sucrose solution overnight and embedded in OCT. Cryostat (20 μm) sections were prepared for immunohistochemistry.MAIN OUTCOME MEASURES: Localization and expression of three NOS isoforms in the cochlea of guinea pigs.RESULTS: All data of ten guinea pigs was entered the final analysis without any loss. [1] Neuronal-type nNOS and endothelial-type eNOS immunoreactivity were localized in inner and outer hair cells of the organ of Corti, as well as in spiral ganglion cells. In addition, staining for nNOS and eNOS were also seen in the marginal cells of stria vascularis, spiral ligament cells, and in nerve fibers. [2] Inducible-type iNOS immunoreactivity was also detected in above each structure of the guinea pig cochlea under physiological conditions.CONCLUSION:NO may play an important role in neurotransmission,blood flow regulation, and cytotoxicity.

15.
Journal of Biomedical Engineering ; (6): 25-27, 2004.
Article in Chinese | WPRIM | ID: wpr-312874

ABSTRACT

A type of water-soluble carboxymethyl chitosan (O--CMC), with 76% degree of substitution determined by conductivity method, was prepared by using chloroacetic acid to react with C6-OH of chitosan. The solubility of O--CMC was characterized also. Animal experiment in rabbits showed that O--CMC could lubricate arthron, inhibit proliferation of fibroblast cells on rabbits' knee joints, benefit the process of repairing pathologic articular cartilage, and produce good therapeutic effect on rheumatoid arthritis.


Subject(s)
Animals , Female , Male , Rabbits , Arthritis, Experimental , Drug Therapy , Pathology , Cartilage, Articular , Cell Proliferation , Chitosan , Therapeutic Uses , Fibroblasts , Injections, Intra-Articular , Knee Joint
16.
Chinese Medical Journal ; (24): 878-883, 2002.
Article in English | WPRIM | ID: wpr-302283

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the feasibility of endothelialization of bioprosthesis by transfer of vascular endothelial growth factor (VEGF) gene.</p><p><b>METHODS</b>Bovine pericardium treated with glutaraldehyde and L-glutamic acid was positioned into the pig right atrium. pcD(2)/hVEGF(121) gene (1 mg) was transferred into the right ventricular myocardium using surgical sutures Reverse transcri ption polymerase chain reaction (RT PCR) was employed to evaluate the expression of myocardial VEGF mRNA. The determination of concentrations of VEGF protein in blood from both the right atrium and peripheral vein, and histological and ultrastructural analysis of implanted bovine pericardium were completed simultaneously.</p><p><b>RESULTS</b>The concentration of VEGF derived from the right atrium in pcD(2)/hVEGF(121) group was significantly higher than that in the pcD(2) group 10 days after VEGF gene transfer (P < 0.01). The expression of myocardial VEGF mRNA in pcD(2)/hVEGF(121) group was much higher in comparison with that in the pcD(2) group. The morphological analysis demonstrated that the coverage rate of host endothelium in the pcD(2)/hVEGF(121) group was 2.6 times as fast as that in the pcD(2) group at 16 days after VEGF(121) gene transfer (P < 0.01). Entire endothelialization occurred at 30 days after VEGF gene transfer. In addition, higher expression of myocardial VEGF mRNA was still available.</p><p><b>CONCLUSIONS</b>VEGF gene transfer by surgical suture can remarkably accelerate endothelialization of bioprosthesis, which may provide a new approach for inhibiting biological valve calcification and improve biocompatibility and long-term durability of the bioprosthesis.</p>


Subject(s)
Animals , Female , Humans , Male , Bioprosthesis , Endothelial Growth Factors , Genetics , Endothelium, Vascular , Physiology , Gene Transfer Techniques , Heart Valve Prosthesis , Lymphokines , Genetics , RNA, Messenger , Swine , Vascular Endothelial Growth Factor A , Vascular Endothelial Growth Factors
17.
Chinese Journal of General Surgery ; (12)2001.
Article in Chinese | WPRIM | ID: wpr-517889

ABSTRACT

Objective To observe the changes of plasma renin activity (PRA)in cirrhotic patients with ascites after portacaval shunt. Method Portal vein, artery,and peripheral vein PRA levels were measured in 16 cirrhotic patients with ascites during perioperative period of portacaval shunt. Results were compared with that in 16 cases of GI tract carcinoma.Results Z] (1)Measured at postshunt day 7,the portal venous pressure (PVP) was significantly lower than that preoperatively〔(26?4)?cm?H 2O vs. (36?4)?cm?H 2O, P

18.
Chinese Journal of General Surgery ; (12)2001.
Article in Chinese | WPRIM | ID: wpr-519473

ABSTRACT

Objective To investigate the causes of clinical misdiagnosis for gastric mucosa associated lymphoid tissue lymphoma (GMALT). Methods The clinical manifestations of and accessory examination for GMALT in 32 cases were retrospectively analyzed. Results Clinical misdiagnosis was made on 32 out of 78 cases (41%) of GMALT for a period of 5 days to 13 months. Radiographic misdiagnosis rate was 40% and endoscopic misdiagnosis rate was 37%. Conclusion The preoperative diagnosis of GMALT was difficult because the incidence of GMALT is low, the symptoms are nonspecific, and radiologic and fibergastroscopic features were very similar to those of gastric carcinoma and peptic ulcer.

19.
Chinese Journal of Pathophysiology ; (12)2000.
Article in Chinese | WPRIM | ID: wpr-523825

ABSTRACT

AIM: To investigate biological effect of endothelin-1 (ET-1) on differentiation of cardiomyogenic cells (CGCs) induced from rabbit bone mesenchymal stem cell (BMSCs) in vitro. METHODS: The BMSCs from shaft of femur of Japan rabbits were isolated and propagated for cell culture. Cultured BMSCs were randomly divided into six groups: Group Ⅰ: the control group (uninduced group); Group Ⅱ: the ET-1 group, added ET-1 (30 nmol/L) into culture medium; Group Ⅲ: 5-aza group, added 5-aza (10 ?mol/L) into culture medium; Group Ⅳ: 5-aza+ET-1 group, after inducing with 5-aza for 3 weeks, ET-1 was added into culture medium. This group was divided into three parts-Ⅳ 1、Ⅳ 2、Ⅳ 3, and separated to add 10、 30、 50 nmol/L ET-1. During the cell culture, growing and differentiation of BMSCs were observed. After inducing for 4 weeks, the differentiation rate and the diameter of cardiomyogenic cells were calculated; Western-blot was employed to analyze the expressions of GATA-4 protein and phosphorylation level. The expression of ?-MHC mRNA was assessed by RT-PCR. Immunohistochemistry staining of Troponin-I and ultrastructure observation of induced cardiomyogenic cells were also completed simultaneously. RESULTS: The cell diameters of CGCs in group Ⅳ 2 were enlarged significantly (P0.05). In group Ⅲ and Ⅳ 2 , the positive cells of cTroponin I staining were more, the expression of ?-MHC mRNA was significantly increased (P

20.
Chinese Medical Ethics ; (6)1995.
Article in Chinese | WPRIM | ID: wpr-527629

ABSTRACT

Along with the "Two Meeting in 2006" convening,medical ethics construction has attracted people's attention again.I think the medical ethics construction should be ensured from its headstream,in other words,we should enhance the medical ethics education of medical students.It is very necessity to enhance the medical ethics education for the development of chinese traditional medical student,whether from the social expect,medical ethics education or from the study character of chinese traditional medicine.The end for medical ethics education is to develop medical students into doctors having mercy heart,noble soul,honest manner and polish technigue.And we should dewelop students from study of books,experient of practice and influence of culture.

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