1.Websites of some class A hospital libraries in eastern China
Chinese Journal of Medical Library and Information Science 2016;25(7):64-68
After the status quo of class A hospital libraries websites in eastern China was described, the major reasons that led to such a status quo were analyzed, including irrational staff structure, lack of systematic management ideas and fund support, and certain suggestions were proposed for their solution.
2.Tripterygium glycosides combined with Xiangdan injection in HSPN efficacy and influence of the clotting mechanism
Chinese Journal of Biochemical Pharmaceutics 2014;37(4):137-139
Objective To observe effects of tripterygium glycosides combined with Xiangdan injection in henoch schonlein purpura nephritis (HSPN)and influence of the clotting mechanism,providing reference for clinical diagnosis and treatment.Methods 76 cases of children with allergic purpura nephritis were randomly divided into control group(n=38)and observation group(n=38)according to the random number table.Control group was given Xiangdan injection treatment.Observation group was given Xiangdan injection treatment combined with tripterygium glycoside.12 weeks was considered as a course of treatment. Results After treatment,the total efficiency rate in treatment group(94.74%)was significantly higher than control group(68.42%),which was statistically different(P <0.05).Before treatment,prothrombin time(PT),fibrinogen(FIB),activated partial thromboplastin time(APPT),platelet(PLT)levels were not significantly different between two groups;FIB and PLT levels in the control group were significantly lower than before treatment(P<0.05 ),PT and APPT had no statistically significant difference before and after treatment.After treatment in observation group,FIB and PLT levels were significantly lower than before treatment(P<0.05 ),PT level was significantly higher compared with before treatment(P<0.05 ),APTT level had no difference before and after treatment.After treatment,PT in treatment group was significantly higher than the control group(P<0.05 ),PLT in treatment group were significantly lower than the control group (P <0.05 ),FIB and APTT had no statistical difference.There was no adverse reaction in two groups after treatment.Conclusion Tripterygium glycosides combined with Xiangdan injection treatment for HSPN has significant effect,which affect the children clotting mechanism to improve the PT,FIB,PLT levels.It is safe and valuable in clinical research.
3.Expression of hMLH1 and hMSH2 in hilar cholangiocarcinoma and its significance
Zongli ZHANG ; Demin MA ; Yanchao GAO
Chinese Journal of Hepatobiliary Surgery 2008;14(4):272-274
Objective To investigate the expression of hMLH1 and hMSH2 in hilar cholangiocarcinoma and its relation to clinical features and prognosis of the tumor.Methods The expression of hMLH1 and hMSH2 was determined with immunohistochemistry in 54 specimens of hilar cholangiocarcinoma and 25 of normal bile duct tissue.Lahoratory data were then analyzed statistically together with the related clinicopathological data.Results 1)hMLH1 and hMSH2 were expressed in 24 and 21 out of the 54 cases of hilar cholangiocarcinoma(44.4%,38.9%)and 23 and 21 of the 25 normal cases(92%,84%),respectively(P<0.05).2)The expression of hMLH1 and hMSH2 in hilar cholangiocarcinoma had no association with the age,gender,tumor size and Bismuth type(P>0.05)but close relation to lymph node metastasis and pathological changes(P<0.05).3)The 2-year survival rate was markedly lower in hMLH1-negative patients than in hMLH1-and hMSH2-positive ones (15%vs.45.4%,23.5%vs.44%,P<0.05).Conclusions Joint action of hMLH1 and hMSH2plays an important role in the oncogenesis and metastasis of hilar cholangiocarcinoma.These two may be valuble factors to indicate prognosis of the tumor.
4.Self-prepared quality control product for urinary retinal-binding protein and its performance evaluation
Peiyu ZHANG ; Yanchao DENG ; Quanshuang LI
International Journal of Laboratory Medicine 2014;(16):2231-2232
Objective To investigate the preparation of the internal quality controls for urinary retinal binding protein(RBP)de-tected by the latex enhanced immunoturbidimetry assay and its performance evaluation.Methods The urine specimens from the pa-tients with nephropathy and healthy people with physical examination were collected,centrifuged by 3 500 r/min for removing sedi-ment,urinary RBP levels were adjusted to the low value for healthy population and the high value for the patients with nephropa-thy;then conducted the anticorrosion,packed and stored at -20 ℃.By using the urinary RBP commodity kits,the latex enhanced immunoturbidimetry was adopted to detect urinary RBP,the intra-batch and inter-batch precisions were detected respectively.Then the high and low values of self-prepared controls were detected once per day for consecutive 5 months.The data were processed by using the SPSS13.0 software.Then the performance of self-prepared urinary RBP quality control was evaluated.Results The intra-batch imprecision of 2 levels of urinary RBP controls was less than 5% and the inter-batch imprecision was less than 6%;the stable period by storage at -20 ℃ was at least 5 months,the imprecision had no statistical difference within 5 months(P >0.05).Conclu-sion The high and low levels of self-prepared urinary RBP quality controls can meet the operating requirements of internal quality controls.
5.Evaluate Performance of the Self-made Quality Control Products for C Peptide by Mixed Serums
Peiyu ZHANG ; Yanchao DENG ; Quanshuang LI
Journal of Modern Laboratory Medicine 2016;31(3):156-157,161
Objective When detecting the blood C peptide by chemiluminescence method,used had confronted the lack of qual-ity control.This paper examines the feasibility of self-made C peptide quality control as indoor quality control products. Methods From the serum of diabetic patients and health examination,C peptide low values(concentration around the 1.20 ng/ml)and high value(concentration around the 12.0 ng/ml)were collected,excluding hemolysis,jaundice and tallow ser-um,preventing bacterial contamination,hepatitis B surface antigen,hepatitis C virus,human immunodeficiency virus indica-tors are negative;then these serum was mixed respectively,embalmed,packaged,-20 DEG preserved.The performance e-valuation of the C peptide mixed serum was carried out using SIEMENS’s C peptide reagent kit.Results Low value,high value of two levels of serum C peptide quality control in batch imprecision respectively were 4.46% and 4.15% respective-ly.Day not precision respectively were 6.00%,5.56%,-20 DEG saved stability for at least 6 months (P>0.05).Com-pared with six months by analysis of variance,F value of the low and high values were 0.665,0.602,P values were 0.471, 0.568 and the difference was not statistically significant (P>0.05),but the difference among bottles was no significant. Conclusion Two levels value of the C peptide in self-made preserved at -20 DEG can meet the requirements of internal quality control products.
6.Expression of TFIIB-related factor 2 protein in human hepatocellular carcinoma and its clinical significance
Lijie ZHENG ; Yanchao GAO ; Zongli ZHANG
Chinese Journal of Hepatobiliary Surgery 2014;20(4):290-293
Objective To study the expression of TFIIB-related factor 2 (BRF2) in hepatocellular carcinoma(HCC) and to determine its clinical significance.Methods 80 HCC patients who received ‘curative' hepatectomy at the Qilu Hospital were studied.Immunohistochemistry analysis was performed to examine the expression of BRF2 and CD34 (microvessel density) in tumor tissues,matched paraneoplastic tissues,and normal liver tissues.Statistical methods were performed to analyse the relationships of expressions of BRF2 and CD34 with clinicopathologic factors.Results BRF2 protein was expressed at a high rate of 61.3% in HCC tumor,which was significantly higher than that in normal liver tissues and matched paraneoplastic tissues (31.6%,28.8 %,respectively,P < 0.05).BRF2 was significantly associated with tumor differentiation,number of nodules,tumor encapsulation,TNM stage,and microvessel density.Prognosis of the high expression BRF2 group was poor.The recurrence and metastasis rates in the high expression group were significantly higher than the low expression group (P < 0.05).The survival rate in the high expression group was significantly lower than the low expression group (P < 0.05).Conclusions The expression of BRF2 increased in HCC tissues,and its expression was closely associated with pathological features and prognosis of patients,indicating that it can be used as a predictor in assessing prognosis of patients with HCC.
7.Clinical study of 223 cases of hilar cholangiocarcinoma
Zongli ZHANG ; Jie CHAI ; Demin MA ; Zhuanglei GAO ; Yanchao GAO
Chinese Journal of Current Advances in General Surgery 2009;0(07):-
Objective:To valuate the relationships between operation modus,pathological characteristics and the prognosis on hilar cholangiocinoma(HCC). Methods:The clinical features,diagnostic methods,operation modus and histopathology results of the 223 cases with HCC were analyzed retrospectively. Results:1) Radical excision had been performed in 85 cases with the excision rate of 38.1%,1,3,5 years survival rates were 58.8%,30.9%,8.8% respectively. Palliative therapy had been performed in 110 cases; the median life span was 8 months. The average life span of those who had given up treatment was about 5 months. 2) In 132 cases of HCC,121 cases were adenocarcinoma,accounting for 91.7%. Well-differentiated was 29 cases (24.0%),medium-differentiated was 43 cases (35.5%),and poor-differentiated was 49 cases(40.5%). The others accounted for 8.3%,in total. The 1,3,5 years survival rate after radical excision of the well-differentiated and the medium-differentiated groups were 55.0%,40.0% and 15.0% respectively,those of the poor-differentiated group were 45.8%,16.7% and 0% respectively. 3) According to the Bismuth Corlette grouping type I was 20.1%,type II was 23.2%,type IIIa was 10.3%,type IIIb was 23.2%,type IV was 7.2%,and the others were 16.0%. Conclusions:1)Radical excision is the key to raise the long-term survival rate. The average life span of those who had given up treatment was about 5 months,which can reflect the natural life span. 2) Poor-differentiated adenocarcinoma accounted for considerable proportion in histopathology types of the hilar cholangiocarcinoma. 3)Bismuth Corlette grouping has some certain limit and disadvantages in the application.
8.Immune effect of thymus induction on rat liver transplantation
Yan ZHANG ; Xihai CHEN ; Yanchao JI ; Zhe ZHAI ; Bo WU
Chinese Journal of Tissue Engineering Research 2010;14(18):3231-3234
BACKGROUND: During xenogenic liver transplantation, major histocompatibility antigen can induce immunological rejection, and immunosuppressant can cause adverse effect on organism. Recently, treatment prior to transplantation induces immune tolerance, which is perspective for organ transplantation.OBJECTIVE: To investigate the correlation between thymus induction and immunological rejection during liver transplantation. METHODS: A total of 40 male SD rats of clean grade were selected as donors. Moreover, 30 male Wistar rats of clean grade and 10 male SD rats of clean grade were selected as recipients. The donor rats were divided into allogeneic gene transplantation, allotransplantation, cyclosporine, and thymus induction groups, with 10 rats in each group. The modified Kamada and improved two-cuff technique was used to establish a stable rat orthotopic liver transplantation model. The cyclosporine group was given cyclosporine (50 mg/kg) for 5 successive days. Thymus induction group was injected with major histocompatibility antigens (50 pL) for 5 successive days. Other groups were not given any interventions. Survival time of rats was recorded in each group. Pathological observation and mixed lymphocyte cultured were performed at days 3, 7, 14, 21, and 28 after transplantation. RESULTS AND CONCLUSION: Survival time was longer in the thymus induced group compared with other groups (> 60 days), damaged level was mild, local immunological rejection was reduced, and lymphocytes were decreased. The effect after liver transplantation was similar to allogeneic gene transplantation but superior to cyclosporine intervention (P < 0.05). This suggested that thymus induction relieved immunological rejection following liver transplantation.
9.Effects of cyclosporine combined with transforming growth factor beta 1 plasmid on rat immunological reaction following liver transplantation
Yan ZHANG ; Xihai CHEN ; Yanchao JI ; Zhe ZHAI ; Bo WU
Chinese Journal of Tissue Engineering Research 2010;14(5):824-827
BACKGROUND: Most patients who underwent liver transplantation would suffer acute rejection or transplanted liver failure resulted by chronic rejection, therefore, inducing specific immune tolerance via varied pathways is the ideal method to solve this problem. OBJECTIVE: To treat rat transplanted liver by injecting transforming growth factor β1 (TGF-β_1) plasmid, and to analyze the relationship between TGF-β1 and allograft rejection from gene level. METHODS: A total of 30 male, Wistar rats were served as allogenic liver donors, and 10 male, SD rats served as syngeneic donors Totally 40 male SD rats were served as liver recipients, and divided into 4 groups by order number table: ailogenic transplantation, syngeneic transplantation, ciclosporin, and ciclosporin plus TGF--β_1 groups. In each group, rat orthotopic liver transplantation model was established by modified Kamada and improved two-cuff technique. After modeling, rats were received cyclosporine 1-5 days in the cyclosporine group, or intraperitoneal injected ciclosporin for 1-5 days, combined with TGF-β_1 plasmid 0-2 days in the cyclosporine plus TGF-β_1 group. No intervention was performed in the other groups. The survival time of rats were recorded, and the pathological changes was detected at days 3, 7, 14, 21, and 28 after transplantation, then the mixed lymphocyte culture was performed. RESULTS AND CONCLUSION: The survival time of rats in syngeneic transplantation group and cyclosporine plus TGF-1,β_1 group was more than 60 days, which was obviously greater than that of allogenic transplantation and cyclosporine groups (P< 0.05). The histopathologic slide showed that there was moderate and severe acute rejection, with evident intrahepatic inflammatory cell infiltration in the allogenic transplantation and cyclosporine groups. Few rejections were observed in the syngeneic transplantatior group, which was close to the normal lever tissues. Mixed lymphocyte culture of the cyclosporine plus TGF-β_1 group was superior to the syngeneic transplantation group or cyclosporine group (P < 0.05). The results demonstrated that cyclosporine combined with local injection of TGF-β_1 plasmid can relieve post-transplant immune rejection.
10.Effect validation of bone marrow-derived mesenchymal stem cells cultured by adherent method in vitro
Yan ZHANG ; Xihai CHEN ; Yanchao JI ; Zhe ZHAI ; Bo WU
Chinese Journal of Tissue Engineering Research 2010;14(6):1006-1008
BACKGROUND: A small number of mesenchymal stem cells (MSCs) present in bone marrow, which would gradually drop with age. OBJECTIVE: To verify the effect of adherent method on culture of bone marrow-derived MSCs. METHODS: Under anaesthesia, bone marrow cells were obtained from femur and tibia of rats, cultured by DMEM containing calf serum, placed in an incubator containing 5% CO_2 at 37 ℃. The culture medium was renewed after 24 hours, and remained periodical medium change with once per week. The weakly adherent cells were passaged. The cell morphology, growth curve, and the expression of cell-surface markers were identified by flow cytometry and immunocytochemical staining. RESULTS AND CONCLUSION: After 24 hours of culture, the cells could adhere to the walls with fusiform or triangle shapes, proliferated faster after 2-3 days, and presented whirlpool-like or clustering. The cells reached a logarithmic growth phase after 2 days, and into the late stationary phase after 12 days, which covered the bottle after 15 days. The cultured cells were positive to CD90 and CD54. The results verified that bone marrow-derived MSCs can be isolated by adherent method. This method is easy operation, and can maintain cell activity preferably.