1.Prognostic significance of TLG on18F-FDG PET/CT imaging in patients with locally advanced pancreatic cancer undergoing radiation therapy
China Medical Equipment 2016;13(6):56-59
Objective:Total lesion glycolysis (TLG) on PET scans were calculated using custom-designed software, then we analyzed the prognostic utility of PET for patients with locally advanced pancreatic cancer (LAPC) undergoing radiation therapy.Methods: 33 patients with newly diagnosed LAPC who underwent 18F- FDG PET/CT scan for staging before radiation therapy were retrospectively included in this study. Patients were divided into two different groups by the median value of TLG. TLG lower than 55.3 was A group and TLG higher or equal to 55.3 was B group. TLG of tumor tissue were calculated from PET/CT images with the SUV cut-off value of 2.5. We analyzed the relationship between TLG and other clinical factors and prognosis in patients with pancreatic cancer by Kaplan-Meier method and log-rank test.Results: By Log-rank univariate analysis showed that the differences in group A and group B related significantly (r=7.765,P=0.005). And their middle survival time was 15.5 months and 8 months respectively. GTV dose of the patients in two groups and CA19-9 before treatment were also statistically different (x2=7.162, x2=10.476;P=0.05). Multivariate analysis showed that the TLG (P=0.009) were independent risk factors that prevented the long-term survival of the prognosis of patients in this group.Conclusion: The value of CA19-9 and GTV dose before treatment were the risk factors of radiotherapy for patients with locally advanced pancreatic cancer. The parameters of TLG were independent prognostic factors. TLG have a certain clinical value in predicting the prognosis of patients with pancreatic cancer, and can guide clinical diagnosis and treatment planning, and extend the lifespan of patients with pancreatic cancer.
2.Effect of Tumor Promoter PMA on Cell-mediated lmmunity Ⅲ. PMA Inhibits Antigen Presentation by Spleen Adherent Cells
Han-Zhang XIA ; You-Hui ZHANG ;
Chinese Journal of Immunology 1986;0(04):-
TNP-conjugated spleen adherent cells (SAC) from normal BALB/c mice could stimulate lymph-node T lymphocytes (LNT) of 1, 3, 5-trinitrobenzene (TNCB) -primed syngeneic mice to proliferate in vitro. The proliferative response was suppressed when phorbol myristic acetate.(PMA) was present in the culture. SAC pretreated with PMA also suppressed markedly the response. Furthermore, PMA was shown to inhibit interleukin-1 (IL-1) production and/or secretion by macrophages in response to LPS stimulation in vitro. Therefore, the suppressive effect of PMA on antigen presentation seems to be due to its inhibitory effect on IL-1 production and/or secretion.
3.Absence of Fanconi anemia proteins in acute myeloid leukemia cell lines THP-1 and M-07e
Hui XIAO ; Kejian ZHANG ; Bing XIA
Journal of Leukemia & Lymphoma 2008;17(4):248-251
Objective To find the possible relationship between defects in the FA/BRCA pathway of genomic maintenance and potential pathogenesis of acute myeloid leukaemia.Methods Twenty-five AML cell lines derived from diverse subtypes of AML were screened to investigate for possible defects in FA,BRCA patllway.Results The absence of FANCN protein in two cell lines,THP-1 and M-07e were observed,which was correlated with the results of MMC-induced G2 arrest,growth inhibition and chromosomal breakage test in both cell lines.But no gene aberrance in these two cell lines by MLPA test and DNA sequencing were found.Conclusion There is a possible relationship between defects in the FA/BRCA Dathway and potentialpathogenesis of acute myeloid leukaemia.A disturbance of theFA pathwaymay represent an early event in the development of this type of leukaemia.
4.The evaluation of the prognostic value of the18F-FDG PET/CT standard uptake value in the treatment of pancreatic cancer with tomotherapy
Hui ZHANG ; Gang RENG ; Tingyi XIA
China Medical Equipment 2016;13(4):57-60
Objective:To investigate the prognostic value of18F-FDG PET/CT by calculating maximal standard uptake values(SUVmax) in patients with pancreatic carcinoma of TOMO knife radiotherapy.Methods:Sixty five cases of pancreatic carcinoma who underwent18F-FDG PET/CT scan before TOMO radiotherapy were reviewed retrospectively, the18F-FDG uptake of primary tumors was measured with the SUVmax. SUVmax<3.0 was divided into group A(32 cases), SUVmax≥3.0 was divided into group B(33 cases), the relationship of SUVmax and other clinical factors with the survival of the 65 patients were analyzed.Results:By Log-rank univariate analysis showed that the differences in group A(SUVmax<3.0) and group B(SUVmax≥3.0) in patiengts with middle survival time was statistically significant(15.5:7 months)atP=0.001. TNM stages(x2=6.625,P<0.010), CA19-9(x2=10.298,P<0.001) and GTV dose(x2=8.054, P<0.005) were also statistically different at (P<0.05). Multivariate analysis showed that the SUVmax and preoperative serum CA19-9 level were independent risk factors that prevent the long-term survival of the prognosis of patients in this group.Conclusion: SUVmax has a certain clinical value in predicting the prognosis of patients with pancreatic cancer, and can guide clinical diagnosis and treatment planning, and extend the lifespan of patients with pancreatic carcinoma.
6.Effect of endoscopic sphincterotomy on function of sphincter of Oddi and long-term complications
Jianfeng YANG ; Xia WANG ; Hui WANG ; Xiao ZHANG ; Xiaofeng ZHANG
Chinese Journal of Digestive Endoscopy 2014;31(1):5-8
Objective To investigate the effect of EST on function of sphincter of Oddi and on the long-term complications.Methods A total of 68 patients with common bile duct stones were recruited from January 2009 to January 2013 in The First People's Hospital of Hangzhou.All patients were under follow-up to observe the incidence of late complications after EST.Oddi sphincter manometry and bile bacterial culture were performed before EST and one year later.Results With the 13-36 months follow-up,the incidence of late complications was 16.9% (11/65).The peak pressure and frequency of contraction of Oddi sphincter after EST were significantly lower than those before EST,but there were no significant differences between patients with complication and without (P > 0.05).After EST,positive rate of biliary bacteria in patients with complications was much higher than that in patients without complications [70% (7/10)vs.31.7% (13/41),P =0.026],although there were no significant differences between them before EST [54.5%(6/11) vs.46.3% (25/54),P =0.618).Logistic regression analysis showed that cholecystolithiasis,bile duct diameter (> 1.5 cm),number of stone (> 3),maximun diameter of stone (> 20 mm),large EST were independent risk factors for late complications of EST.Conclusion Importance should be attached to the late complications of EST with Oddi sphincter function declination,and biliary enteric reflux being the basic factor in late compilations after EST,which are also influenced by many risk factors.
7.Analysis on the economical operations of public hospitals in Hubei province
Wenbin ZHANG ; Mian XIA ; Xiaoming RUAN ; Hui LU ; Li ZHANG
Chinese Journal of Hospital Administration 2011;27(1):34-38
Objective To understand the current economical operation of public hospitals in Hubei province and its effect on their public welfare performance. Methods To collect data in field survey and to analyze the current economic situation of such hospitals in the province based on relevant statistics.Results Financial revenue and expenditure of these hospitals keep rising and achieving a balance in general; for the insufficient government financial subsidy, 90% of the revenue of such hospitals come from their medical services and drugs sold; the per capita revenue of these public hospitals maintains a yearly rising trend; their asset-liability ratio was relatively high. Conclusions The public welfare performance of these hospitals tends to be impeded by the reform on the macro economic system and health policy changes, on top of the attraction of economic interests. Improving the government subsidy mechanism for public hospitals and standardizing the financial management mechanism of public hospitals.
8.The correlation between the expression of Epstein-Barr virus lytic genes and systemic lupus erythematosus
Guanzhi CHEN ; Wei ZHANG ; Hui LI ; Xia TAN ; Bing LUO
Chinese Journal of Dermatology 1995;0(01):-
Objective To study the relationship between the expression of EBV lytic genes and systemic lupus erythematosus (SLE). Methods The blood samples from 44 SLE patients and 43 matched normal controls were tested for BamHⅠ-W, the specific DNA fragment of EBV, by polymerase chain reaction(PCR)-Southern analysis. RT-PCR and Southern blotting were used to detect the EBV lytic genes (including immediate early genes BZLF1 and BRLF1, early genes BARF1, late genes BcLF1 and BLLF1) in EBV DNA-positive SLE patients. Results The EBV DNA was positive in 32 SLE patients and 3 controls. There was significant difference between the SLE patients and controls in the EBV DNA expression ( ?2 = 39.18, P 0.05). In the EBV DNA-positive SLE patients, 2 (both with active SLE) were positive for BARF1 mRNA; 14 (11 with active SLE and 3 with inactive SLE) were positive for BcLF1 mRNA; none was positive for BZLF1,BRLF1 or BLLF1 mRNA. No lytic genes were expressed in any of the 3 EBV DNA-positive controls. Conclusion EBV infection may be related to the development of SLE. EBV lytic infection exists in some SLE patients. EBV is at a low level of lytic activity in patients with SLE.
9.Study on Function of Osteoclast in Infants and Toddlers
hai-he, YANG ; xia, LIU ; hui-feng, ZHANG ; yuan, CHEN
Journal of Applied Clinical Pediatrics 2006;0(13):-
Objective To investigate the osteoclast′s function levels in infants and toddlers and the relationship between the osteoclast function and sex,age,body length,body weight and body mass index(BMI).Methods Sixty-eight children(37 boys and 31 girls,aged from 1 to 36 months) were studied.All of the children were in good health.These children were divided as infants group and toddlers group according to their age.Just before the samples were collected,the children′s body weight,body length were measured and the BMI were calculated.Two biochemical markers,such as serum tartrate-resistant acid phosphatase 5b(TRAP5b) and urine deoxypyridinoline(DPD) were measured.Results The difference of serum TRAP5b concentration between infants and toddlers was significant at the level of P
10.Risk Factors of Bacteria Producing Extended-spectrum Beta-lactamases(ESBLs) from Children′ Various Types of Specimens
Dongai ZHAO ; Lixia BAI ; Xiaona ZHANG ; Hui ZHOU ; Xia LI
Chinese Journal of Nosocomiology 2009;0(22):-
OBJECTIVE To study the risk factors of extended-spectrum beta-lactamases(ESBLs) producing bacteria infection in children,and provide reference to prevent and control the prevalence of bacterial strain of ESBLs.METHODS In a case and control studys the samples were selected randomly from 2007 to 2009 in the Children′s Hospital of Shanxi Province.The samples of case and control were all 100.RESULTS ?2 Test showed that boy and baby,previous history,pneumonia,medical ward,hospital infection and using antibiotics before admission to hospital were the risk factors;t-test showed that high white blood cell and neutrophil were the protective factors;Logistic regression showed that boy,previous history,hospital infection,using antibiotics before admission to hospital and medical ward were the risk factors and anal tube was a protective factor.CONCLUSIONS Increasing the rate of bacteriological test to the children who have the relative risk factors is very important to prevent and control the prevalence of ESBLs strain.