1.Mesenchymal stem cells-based cancer therapies
Jie ZHANG ; Lin FANG ; Junnian ZHENG
Journal of International Oncology 2015;(8):612-615
Mesenchymal stem cells (MSCs)have inherent tumor-trophic migratory properties and low immunogenicity,which allow them to serve as vehicles for delivering effective,targeted therapy to tumors.MSC plays an anti-tumor role by releasing some cytokines,which can be strengthened by oncolytic virus,antiangio-genesis agent,tumor necrosis factor guided apoptosis ligand,IL,IFN and pro-drug.In addition,there are some advantages in combination treatment of MSC and others therapies.
2.Application Prospect of EPR System in Total Cost Accounting of Hospitals
Jin ZHANG ; Tianrong ZHENG ; Jianfen FANG
Chinese Health Economics 2013;(9):93-94
The cost accounting plays central role in enhancing financial management in the hospital. With the increasing hospital competition, conventional model of cost accounting is changing, and gradually replaced with a novel model of cost accounting-total cost accounting. With the wide spread of total cost accounting in all hospitals, it is found that the general operation of hospitals is limited by the original HIS information system. EPR system feathered with the advanced data administration and potent function of financial analysis holding promise in adoption and acceptance by hospitals, serving as information collector and analyzer following HIS system.
4.Mid-term and long-term safety and efficacy of TVT-O for the treatment of stress urinary incontinence
Weilin FANG ; Zhengwang ZHANG ; Weiqing QIAN ; Jiqiong ZHENG ; Maofei YE
Chinese Journal of Urology 2015;(10):782-785
Objective To evaluate the complications and long-term efficacy of inside-out transobturator transvaginal tape ( TVT-O) for the treatment of stress urinary incontinence ( SUI) .Methods From January 2008 to December 2013,236 consecutive female patients (mean age 56 ±9 years,range 44-88 years)with the symptom of incontinence when abdominal pressure increasing (such as walking), underwent TVT-O operation.All these patients needed pads and were diagnosed with SUI by cough test and Marshall -bonny test before surgery , with the mean international consultation committee on incontinence questionnaire short form ( ICI-Q-SF) score of 15.6 ±3.9.Two grouping methods were used:the mid-term group including patients whose follow-up time was between 6 months and 3 years, the long-term group including patients whose follow-up time >3 years,the group of patients who underwent TVT-O only and the group of patients who underwent TVT-O plus pelvic floor repair at the same time . Their clinical and follow-up data , intraoperative and postoperative complications , subjective and objective effects were recorded and analyzed.Results Of these 236 patients,there were 1 case of bladder perforation (0.4%) and 1 case of intraoperative sling exposure to vagina ( 0.4%) .Postoperative complications included 36 ( 19.1%) groin/puncture point pain ,18 (9.5%) de novo frequency of micturition ,8 (4.2%) urinary retention /difficulty of urination.All the complications were relieved after symptomatic treatment or surgery except 2 cases of urinary retention/difficulty of urination.Their symptom kept existing after urethral dilatation and sling dissection and long-term intermittent self-catheterization was needed .One hundred and eighty-nine patients completed more than six months of follow-up, with mean follow-up time of ( 35.0 ±12.5 ) months.One hundred and sixteen (61.4%) cases was arranged to mid-term group and 73(38.6%) was arranged to long-term group.88.9%patients ( 168/189 ) were cured objectively and 9.5% patients ( 18/189 ) improved. There was also a significant subjective improvement ( ICI-Q-SF scores:15.6 ±3.9 preoperative versus 6.7 ± 2.3 postoperative,P<0.01).There was no significant difference of both objective and subjective efficacy between mid-term group and long-term group ( cured +improved rate 97.4% versus 95.9%;ICI-Q-SF scores 14.3 ±2.8 versus 16.7 ±3.4 preoperative ,5.8 ±1.2 versus 7.9 ±2.0 postoperative , P>0.05 ) . Patients who underwent TVT-O and those who underwent TVT-O +pelvic floor repair had no significant difference in efficacy (cured +improved rate 97.8%versus 100.0%,P>0.05).Conclusion TVT-O is a safe,effective and durable treatment for SUI , whether or not with concomitant procedure of pelvic floor repairment.
5.Determination of Imatinib Mesylate Liposome and Related Substances by HPLC
Xiaqin FANG ; Mengmeng LIU ; Xiuli ZHANG ; Yifei WU ; Wensheng ZHENG
Herald of Medicine 2014;(11):1496-1498
Objective To establish a method for determination of imatinib mesylate liposome and related substances. Methods The liquid chromatography was carried out on a Kromasil C18 column. The mobile phase A consisted of methanol-octane sulfonate solution(42:58). The mobile phase B consisted of methanol-octane sulfonate solution(4:96). The flow rate of gradient elution was 1. 2 mL·min-1 . The detection wavelength was 268 nm. The column temperature was room temperature. Results The intermediates and degraded substances could be seperated under the selected chromatographic conditions. Imatinib mesylate showed a good linear relationship within 1-100μg·mL-1,r=0. 999 1(n=5). Conclusion The method is specific, accurate,sensitive,and simple,and can be used for quality control of imatinib mesylate liposome.
6.Expression and significance of MYC/BCL2 protein coexpression in diffuse large B-cell lymphoma
Jianchen FANG ; Zheng LI ; Zhaoxia XIA ; Huizhi ZHANG
Journal of International Oncology 2014;(9):712-714
Objective To explore the condition of MYC/BCL2 protein coexpression in 245 patients with diffuse large B-cell lymphoma (DLBCL)and to find the correlations among MYC/BCL2 protein coexpres-sion,the germinal center B-cell-like (GCB)subtype and non-GCB subtype.Methods Paraffin-embedded lymphoma samples from 245 patients with DLBCL were studied using immunohistochemistry for MYC,BCL2, CD10,BCL6,MUM1 and KI67.And the protein expressions of them were analyzed.Results In the speci-mens of 245 patients with DLBCL,the patients with non-GCB were 163 (66.5%),and the patients with GCB were 82 (33.5%).The group of MYC/BCL2 protein coexpression comprised 35.9% (88/246)of the all patients.Non-GCB subtype group had a significantly higher frequency of MYC/BCL2 protein coexpression than the GCB subtype group (41.7%∶24.4%;χ2 =7.116,P=0.008).Conclusion The data shows that MYC/BCL2 protein coexpression occurs significantly more commonly in the non-GCB subtype.We can predict prog-nosis and choose therapeutic regimen base on the assessment for MYC and BCL2 protein expression.
7.Relationship between apolipoprotein E gene polymorphism and cerebral infarction patients with different gender and etiological typing
Yanhong ZHANG ; Lei ZHU ; Dejun ZHENG ; Jinyao PAN ; Jianzhi FANG
Chinese Journal of Cerebrovascular Diseases 2014;(6):305-310
Objective To investigate the relationship between apolipoprotein E ( ApoE ) gene polymorphism and cerebral infarction patients with different gender and etiological typing. Methods A total of 91 patients with cerebral infarction aged≥60 years ( cerebral infarction group) were enrolled. They were divided into either a large artery atherosclerotic (LAA) stroke group (n=37) or a small artery occlusion (SAO) stroke group (n=54) according to the Trial of Org 10172 in acute stroke treatment (TOAST) classification. A total of 105 age-,sex-,and residence-matched healthy subjects were enrolled as controls. A Nested Allele-Specific Multiplex Polymerase Chain Reaction Method was used to detect the ApoE gene polymorphism. The ApoE gene polymorphism of cerebral infarction of different gender and etiological typing were compared. Results ( 1 ) ApoE Genotypes of E2/2, E2/3, E2/4, E3/3, and E3/4 were detected,but the ApoE E4/4 was not detected. (2) There were no significant differences in the frequencies of ApoE genotypes and each gene carrier frequency between the cerebral infarction group and the control group (all P>0. 05). There was significant difference in ApoE genotype frequencies and each gene carrier frequency of the males between the cerebral infarction group and the control group (P<0. 01,P<0. 05). Both the E3/3 genotype frequency (56. 1%) and ε3 carrier frequency (78. 0%) of the cerebral infarction group were lower than the males of the control group ( 79. 2% and 89. 6% respectively );both the E3/4 genotype frequency (31. 7%) and ε4 carrier frequency (15. 9%) were higher than the control group (7. 5% and 3. 8%respectively). There was no significant differences in the ApoE genotype frequency and gene carrier frequency in female participants between the two groups (all P>0. 05). (3) There were no significant differences in the ApoE genotype frequency and gene carrier frequency among the LAA,SAO,and control groups. There was significant difference in the ApoE genotype frequency and gene carrier frequency in males between the LAA group and the control group (P>0. 01);the genotype frequencies of E2/3 and E3/E3 (6. 7% and 46. 7%),ε2,as well as theε3 carrier frequency (3. 3% and 73. 3%) of LAA were lower than those of the control group (13. 2%,79. 2%,6. 6%,and 89. 6%,respectively);the E3/4 genotype frequency andε4 carrier frequency of the LAA subtype were 46. 7% and 23. 3% respectively. They were all higher than 7. 5% and 3. 8% in the control group. However,there were no significant differences in males among the SAO group,the control group,and the 3 groups of females ( the LAA subtype,SAO subtypes,and the control group) (P>0. 05). Conclusion ε4 gene may be a risk factor for LAA in males. The association of ApoE gene polymorphism with cerebral infarction in females is not found.
8.Clinicopathologic characteristics and risk factors for lung metastasis after radical hysterectomy in early-stage cervical cancer
Aiwen ZHENG ; Yaqing CHEN ; Jing FANG ; Yingli ZHANG
Chinese Journal of Obstetrics and Gynecology 2015;(3):204-209
Objective To discuss the clinicopathologic characteristics and risk factors for lung metastasis of early-stage cervical cancer after radical hysterectomy. Methods The complete clinicopathologic data of patients with lung metastasis of cervical cancer after radical surgery from January 2008 to December 2013 admitted in Zhejiang Cancer Hospital were retrospectively analyzed by univariate and multivariate analysis. Results (1)There were 38 cases of early cervical cancer suffered from lung metastasis after radical hysterectomy during the period. The median age at diagnosis of cervical cancer was 46 years, the average lung metastasis time was 13 months after operation, 50.0%(19/38) cases occurred in the first year. Thirty-one cases were squamous cell carcinoma and 7 cases were non-squamous cell carcinoma.(2)Univariate analysis showed that age,clinical stage, manner of tumor growth, tumor grade, perineuronal invasion, para-aortic lymph node metastasis were not significant effect on postoperative lung metastasis(all P>0.05). But tumor size, histologic types, depth of stromal invasion, uterine body infiltration, lympho-vascular space invasion,pelvic lymph node metastasis, positive margin and abnormal tumor markers were significantly correlated with postoperative lung metastasis(all P<0.05). Multivariate analysis showed that only tumor size, histologic types and pelvic lymph node metastasis were independent risk factors for lung metastasis of cervical cancer(P<0.05). Conclusions Patients of early-stage cervical cancer with lung metastasis mostly occurs within 1 year after radical hysterectomy. Local large tumor lesions (tumor size>4 cm), non-squamous cell carcinoma and pelvic lymph node metastasis were more likely to have lung metastasis.
9.INSOLUBLE DYE XYLAN OF SUGAR CANE BAGASSE AND ITS APPLICATION FOR MEASUREMENT OF XYLANASE ACTIVITY
Chenxing HE ; Hourui ZHANG ; Jianzhi ZHENG ; Hong FANG ; Hai CHEN ;
Microbiology 1992;0(01):-
Xylan from sugar cane bagasse can be cross linked by 1,4 butanedioldiglycidylether with dye Cibacron blue 3GA to form an insoluble dye solid This substrate was stable from pH4 to pH8 at 50℃ for 24h or 100℃ for 30min It is easy and sensitive to use this dyed xylan from sugar cane bagasse in measuring xylanase activity and screening xylanase producing microorganisms on agar plate
10.Effects of selenium enriched Spirulina platensis on antioxidation and regeneration of rat hepatocytes after hepatectomy
Feng HUANG ; Zhi HUANG ; Fang YANG ; Wenjie ZHENG ; Xiaolin ZHANG
Chinese Journal of General Surgery 1993;0(01):-
Objective To explore the effects of selenium enriched Spirulina platensis(Se-SP) on(antioxidation) and regeneration of rat hepatocytes after partial hepatectomy.Methods Sixty-seven percent(hepatectomy) was performed in rats after high dose(H) and low dose(L) Se-SP was given via gastric tube for 7 days.Then selenium(Se),glutathione peroxidase(GPx),superoxide dismutase(SOD) and(malondiaoldehyde)(MDA) in hepatocytes were determined.The results were compared with normal saline(giving) via gastric tube before hepatectomy(C) and sham operation(S) groups.Hepatocytes were obtained(before) operation and 24h after operation,and the expression index of proliferating cell nuclear antigen((PCNA)) in hepatocytes was detected by immunohistochemistry,and the DNA damage of hepatocytes induced by peroxide was analyzed by comet assay.Results After partial hepatectomy,Se content,GPx and SOD(activity),and PCNA expression index were obviously higher(P