1.Research progress of brachytnerapy in soft tissue sarcoma
Journal of International Oncology 2009;36(7):539-541
Brachytherapy has become an important treatment for soft tissue sarcoma by its unique radio-biology and radiation physics characteristics, the treatment time is divided in accordance with preoperative brachytherapy, intraoperative brachytherapy, postoperative brachytherapy, brachytherapy alone, which in im-proving the rate of limb preservation and local control rate sarcoma has played an important role. However, the timing of treatment, treatment modalities, the choice of implantation dose is still in dispute.
2.Case of chronic adrenocortical hypofunction.
Hongliang LI ; Zhihui XUE ; Jie YAN
Chinese Acupuncture & Moxibustion 2015;35(9):947-948
3.Effect of 5-azacytidine and simulated biological microenvironment on differentiation from bone marrow mesenchymal stem cells into myocardial-like cells
Zhihui CHU ; Jie HUI ; Lianhua HAN
Chinese Journal of Tissue Engineering Research 2007;0(40):-
0.05) . Four weeks after culture,both transcription factor NKX-2.5 and GATA4 were expressed in the 5-azacytidine group. Additionally,?-mysion heavy chain but not ?-mysion heavy chain expression was observed. CONCLUSION:5-azacytidine induced the differentiation from bone marrow mesenchymal stem cells into myocardial-like cells;in addition,simulated biological microenvironment in both indirect contact group and myocardial cell lysate group also induced the same differentiation. The differentiated cells were cardiac possesses which were between mature cells and cardiac progenitor cells.
4.Comparison of three staining methods for hepatitis B virus
Juan DU ; Zhihui HAN ; Fei PEI ; Jie ZHENG
Journal of Peking University(Health Sciences) 2004;0(03):-
Objective: To compare the advantages and disadvantages of three staining methods of HBV. Methods: Normal Liver tissue and HBV-infected, HCV-infected ,or dually infected (HBV and HCV) liver tissues were selected for this study. Formalin- fixed, paraffin-embedded sections(4 ?m) were prepared. Each of the liver tissue specimens was detected by three staining methods, including immunohistochemical methods ,Shikata’s orcein stain and Victoria blue stain,respectively. Results: In the three methods , all of six HBV -infected cases showed intense staining, and three cases with dual infection (HBV and HCV) were weakly positive. However, both normal and HCV-infected liver tissues showed no staining. HBsAg stained dark brown with Immunohistochemical stain; HBsAg containing ground-glass hepatocytes stained magenta with Shikata’s orcein stain; HBsAg stained blue with Victoria blue. Conclusion: Each of three methods has its own advantages and disadvantages: high specificity and sensitivity, but high cost for immunohistochemical methods;complicated and overelabrate procedure for preparation of solutions, lower specificity and sensitivity,but low cost, for special staining methods.
5.The analysis of clinical features and prognosis of hyperlipidemic acute pancreatitis
Yibing ZHANG ; Jie PAN ; Liming ZHU ; Zhihui LIN
Chongqing Medicine 2013;(33):4030-4031,4033
Objective To analyze the clinical features and prognosis of hyperlipidemic acute sancreatitis (HLAP) .Methods A retrospective study was conducted in a cohort of 72 hyperlipidemic acute pancreatitis patients admitted in hospital from June 2007 to June 2012 .83 patients with acute biliary pancreatitis (ABP) diagnosed were served as control group .The clinical data of both groups were compared between the two groups .The correlation between serum triglyceride(TG) levels and disease severity of HLAP was assessed .Results The age and serum amylase levels of the HLAP group were remarkably lower than those of the ABP group (both P<0 .05) .Patients with HLAP had a significantly increased prevalence of fatty liver and type 2 diabetes compared with those with ABP(P<0 .05) ,but no difference of incident hypertension was found (P>0 .05) .The Ranson score ,APACHE-Ⅱ score ,and Bal-thazar CT score were comparable between the two groups (all P>0 .05) .The recurrence risk of HLAP group was strikingly higher than that of ABP group(P<0 .05) ,whereas the surgical operation and mortality rates were not significantly different between the two groups(P>0 .05) .The serum TG levels of HLAP showed no significant correlation with Ronson score ,APACHE-Ⅱ score and Balthazar CT score values(all P>0 .05) .Conclusion HLAP mainly occurs in young to middle-aged people .The serum amylase val-ues of HLAP increased mildly .Patients with HLAP are often accompanied by fatty liver and type 2 diabetes ,and subjected to grea-ter complications and recurrence risk .The severity of HLAP doesn′t correlate with the serum TG levels .
6.Comparison of effects of ELISPOTs using pleural fluid and peripheral blood in the diagnosis of tuberculous pleurisy
Dan CUI ; Jie ZHAO ; Pengchong LIU ; Xiuli FENG ; Zhihui LI
Tianjin Medical Journal 2015;(6):681-683
Objective To evaluate the effects of ELISPOT (enzyme-link immunospot) test using different samples in diagnosing tuberculous pleurisy. Methods Using T-Spot-TB kit to detect interferon-γlevel in pleural effusion and periph?eral blood from 164 patients with tuberculous pleural effusion and 102 patients without tuberculous pleural effusion. Number of spot forming cells (SFCs) as well as the specificity and sensitivity of the tests were compared between these two methods (ELISPOT using leural effusion or peripheral blood). Results The area under the ROC curve was 0.947 in pleural effusion Elispot test while it was 0.905 in peripheral blood Elispot test. The sensitivity of pleural effusion ELISPOT test in diagnosis of tuberculous pleurisy (95.1%) was significantly higher than that of peripheral blood ELISPOT test (89.0%). What’s more, the specificity of pleural effusion ELISPOT test in diagnosis of tuberculous pleurisy (90.2%) was higher than that in diagno?sis of peripheral blood ELISPOT test (88.2%). Conclusion The pleural effusion ELISPOT test is more valuable than periph?eral blood ELISPOT in the diagnosis of tuberculous pleuritis.
7.Inhibitory effects of extracellular cholesterol and lipopolysaccharide on cellular cholesterol efflus
Jie LIU ; Yunmei ZHENG ; Zhihui TIAN ; Guangming CHANG ; Haidong LI
Chinese Journal of Tissue Engineering Research 2016;20(7):1000-1005
BACKGROUND:Cholesterol is closely linked to the occurrence and progression of atherosclerosis. Current approaches to study celular cholesterol dynamics have their own limitations.
OBJECTIVE: To measure the cholesterol efflux rate of RAW 264.7 mouse macrophages by BODIPY-Cholesterol labeling and to explore the effects of extracelular cholesterol and lipopolysaccharide on the cholesterol efflux rate.
METHODS:RAW 264.7 cels were cultured in vitro with DMEM containing 10% fetal bovine serum, and labeled with BODIPY-Cholesterol for 1, 2, 4, 8 hours. Then, the cels were rinsed with serum-free DMEM and inoculated for 6, 12, 24, 48, 96 hours to optimize the labeling time and incubation time. We measured and compared the cholesterol efflux rates after cultured cels were treated with cholesterol, lipopolysaccharide, human sera with high cholesterol or human sera with normal cholesterol.
RESULTS AND CONCLUSION: The best labeling time for BODIPY-Cholesterol was 2-8 hours. Cholesterol efflux rates were gradualy decreased after the cels that were labeled for 2 hours were incubated with increasing concentrations of cholesterol (0.1, 0.5, 2.5 mmol/L,P< 0.01). Treating cels with lipopolysaccharide also decreased the cholesterol efflux rate (P < 0.05). Furthermore, the cholesterol efflux rate was decreased after cels were treated with human sera with high cholesterol (P< 0.05). These findings indicate that BODIPY-Cholesterol can be used to measure celular cholesterol efflux rate and to study the effects of extracelular cholesterol and lipopolysaccharide on the cholesterol efflux rate.
8.Expressions of miRNA-17-92 cluster and mitofusin 2 in endometrial cancer tissues and their clinical significances
Zhihui JIE ; Yan ZHOU ; Qian WANG ; Min WANG ; Xueying ZHANG
Cancer Research and Clinic 2021;33(3):168-173
Objective:To explore the expressions of miRNA-17-92 (miR-17-92) cluster and mitofusin 2 (MFN2) protein in endometrial cancer (EC) and their clinical significances.Methods:A total of 72 EC tissues, 36 endometrial lesions of patients with endometrial atypical hyperplasia, and 22 normal endometrial tissues from total hysterectomy for grade Ⅲ cervical intraepithelial neoplasia in the Second Affiliated Hospital of Shandong First Medical University from January 2008 to December 2014 were collected; at the same time, all patients' paraffin-embedded tissues were collected. Real-time quantitative polymerase chain reaction was used to detect the expression level of miR-17-92 in each tissue. Immunohistochemical SP method was used to detect the localization and expression level of MFN2 protein in each paraffin-embedded tissue. The correlation of miR-17-92 and MFN2 protein with clinicopathological features of EC patients was analyzed. Kaplan-Meier method was used to draw survival curve of patients with different miR-17-92 and MFN2 levels, and log-rank test was made; Cox proportional hazard regression model was used for multivariate survival analysis.Results:The relative expression of miR-17-92 in EC, atypical hyperplasia and normal endometrial tissues were 1.49±0.46, 1.01±0.30 and 0.69±0.20, respectively. The expression of miR-17-92 in EC tissues was higher than that in the other endometrial tissues, and the differences were statistically significant (both P < 0.01). The high-expression rates of MFN2 protein in EC, atypical hyperplasia and normal endometrial tissues were 20.8% (15/72), 39.4% (13/33) and 85.0% (17/20); the high-expression rate of MFN2 protein in EC tissue was lower than that in the other endometrial tissues, and the differences were statistically significant (both P < 0.012 5). In EC patients, the relative expression of miR-17-92 in patients with histological type Ⅱ was higher than that in patients with histological type Ⅰ ( P < 0.05); the relative expression of miR-17-92 in patients with myometrial invasion depth ≥1/2 were higher than that in patients with myometrial invasion depth <1/2 ( P < 0.05). The high-expression rate of MFN2 protein in patients with histological type Ⅰ was higher than that in patients with histological type Ⅱ ( P < 0.05); the high-expression rate of MFN2 protein in patients with International Federation of Gynecology and Obstetrics (FIGO) grade Ⅰ was higher than that in patients with FIGO grade Ⅱ and Ⅲ ( P < 0.05). When the EC patients were grouped according to the median relative expression of miR-17-92 (1.421), Kaplan-Meier survival analysis showed that the median overall survival (OS) time of the miR-17-92 low-expression group (36 cases) was not reached, and the high-expression group (36 cases) was 36 months (95% CI 32-42 months), and the difference in OS between the two groups was statistically significant ( P = 0.049); the median OS time of the MFN2 high-expression group (15 cases) was not reached, and the low-expression group (57 cases) was 38 months (95% CI 33-41 months), and the difference in OS between the two groups was statistically significant ( P = 0.046). Multivariate Cox regression analysis showed that the expression levels of miR-17-92 and MFN2 were independent influencing factors for the survival of EC patients ( HR = 3.10, 95% CI 1.36-7.07, P = 0.007; HR = 0.30, 95% CI 0.09-0.99, P = 0.048). Conclusion:The high-expression of miR-17-92 and low-expression of MFN2 protein in EC tissues may be involved in the occurrence and development of EC, and they can be used as indicators for judging the prognosis of EC patients.
9.Value of dual-phase 99Tcm-MIBI scintigraphy in the localization and diagnosis of secondary hyperparathyroidism
Jie ZHOU ; Zhihui HONG ; Yizhen SHI ; Yi YANG ; Jun TANG ; Zengli LIU
Chinese Journal of Nuclear Medicine and Molecular Imaging 2014;34(3):192-195
Objective To explore the clinical value of dual-phase 99Tcm-MIBI scintigraphy in the localization and diagnosis of secondary hyperparathyroidism (SHPT).Methods A total of 20 patients (8 males,12 females; average age 49.6 years) with uremic SHPT who underwent parathyroidectomy from 2010 to 2013 were retrospectively analyzed.All patients underwent 99Tcm-MIBI SPECT/CT and 19 underwent color Doppler ultrasonography (CDUS).Post-excisional histopathology was considered as the gold standard.The diagnostic efficacies of 99Tcm-MIBI and CDUS for SHPT were calculated.The correlation between T/NT ratio in delayed imaging and the volume of excised parathyroid and the intact PTH (iPTH) were analyzed.x2 test,Pearson or Spearson correlation analysis were used to analyze the data.Results The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of 99Tcm-MIBI SPECT/CT and CDUS in the diagnosis of SHPT were 66.67% (44/66),100%(14/14),100% (44/44),38.89%(14/ 36),72.50% (58/80) and 78.19%(43/55),52.38%(11/21),81.13%(43/53),47.83(11/23),71.05% (54/76),respectively.There were significant differences in specificity and positive predictive value (x2 =9.33,9.26,both P<0.05),but no significant differences in the sensitivity,negative predictive value and accuracy (x2 =1.97,0.04,0.46,all P>0.05).T/NT ratio correlated with serum iPTH and parathyroid volume (r=0.638,rs =0.571,both P<0.05).Conclusions The specificity of 99Tcm-MIBI SPECT/CT is superior to CDUS in the diagnosis of SHPT.Dual-phase 99Tcm-MIBI SPECT/CT could locate the hyperfunctional parathyroid gland and provide the basis for surgical treatment.
10. Progresses on the quality of life of children with chronic kidney disease
Zhihui CHEN ; Fang WANG ; Jie DING
Chinese Journal of Applied Clinical Pediatrics 2019;34(17):1355-1357
The health-related quality of life (HRQoL) is the individual subjective evaluation of disease and treatment on their physical, mental and social health status, and is an important part of health and medical services.Chronic kidney disease (CKD) is a kind of diseases that has lasted for more than 3 months of abnormal renal structure or function.It is one of the diseases that seriously affect children′s HRQoL.This article reviews the emergence, development, evaluation tools of children′s HRQoL and its application in the field of nephrology.