1.Negative helical CT cholangiopancreatography compared with direct cholangiopancreatography
Zhuiyang ZHANG ; Yi DING ; Caifang NI ; Lei GONG
Chinese Journal of Radiology 2001;0(07):-
0 05) Conclusion N CTCP had a better visualization of the whole biliary tree than PTC or ERCP in patients with obstructive biliary diseases, and had similar results in identifying obstructive location and nature with that of the direct cholangiopancreatography As one of the noninvasive techniques, N CTCP provided another way to diagnose extrahepatic bile obstructive diseases and was an effective alternative to unsuccessful direct cholangiopancreatography or for those patients who were unsuitable for the direct cholangiopancreatography
2.Implementation and effectiveness of ‘ three early education' in orthodontics
Ni DONG ; Xi XIA ; Yi ZHANG ; Feng JIANG ; Wenying LI
Chinese Journal of Medical Education Research 2013;(2):154-157
Teaching and research section of orthodontics of the Affiliated Hospital of Stomatology of Chongqing Medical University took the lead in carrying out ‘ three early education' Students of stomatology in Chongqing Medical University established ‘ social practice volunteer team' and conducted ‘ three early education' in orthodontic clinic during winter,summer holiday and weekend.This let students of low grades contact with society,clinical practice and scientific research at early stage thus to comprehensively improve their overall quality.Questionnaire for student volunteers of the Affiliated Hospital of Stomatology of Chongqing Medical University showed that ‘ three early education' can effectively improve medical students' comprehensive quality.In the early stages of learning for students of stomatology,we cultivated students' occupation spirit,innovation consciousness,scientific literacy,clinical thinking and teamwork ability by strengthening training of students' social practice ability,communication ability,organization and coordination ability,professional interests,professional senses of belonging,team spirit and moral emotion.We achieved certain results and our experiences are worth extending.
3.Analysis of the statistics of graduates students in PUMC hospital
Xin ZHOU ; Jing WANG ; Zhi-yi ZHANG ; Chao NI
Chinese Journal of Medical Education Research 2011;10(9):1074-1076
The author analyzes the basic information in recent years,including overall students scale,students' age,application trends,etc.Some suggestions are made,regarding to recruiting plan,applicant qualification,recruiting mode,etc,in order to further improve the recruiting and graduate management.
4.Effect of long non-coding RNA UCA1 on invasion and metastasis of pancreatic cancer cell lines
Youli ZHANG ; Yi ZHAO ; Xingxing ZHANG ; Guoying WANG ; Aihua GONG ; Xin NI ; Min XU
Basic & Clinical Medicine 2015;(9):1223-1227
Objective To explore the expression of urothelial carcinoma-associated 1 ( UCA1 ) in pancreatic cancer cell lines and its influence on the invasion and metastasis of the pancreatic cancer cells .Methods The expression of UCA1 in pancreatic cancer tissues and paired adjacent normal tissues ( 11 cases ) and 5 pancreatic cancer cell lines was analyzed by real-time PCR.The level of UCA1 in BxPC-3 was knocked down by small interfering RNA . The ability of invasion and migration in vitro of transfected BxPC-3 was detected by Transwell invasion assay and wound healing assay .The protein levels of MMP-2 and MMP-9 were measured by Western blot experiment .Results The expression level of UCA1 in pancreatic cancer tissues was higher than that in paired adjacent normal tissues , and UCA1 differentially expressed in 5 pancreatic cancer cell lines .Down-regulation of UCA1 by siRNA suppressed the expression of MMP-2 and MMP-9 in BxPC3, and dramatically impaired the ability of invasion and migration of BxPC-3.Conclusions UCA1 is over-expressed in pancreatic cancer , and down-regulation of UCA1 attenuates the capacity of invasion and metastasis in vitro of BxPC-3 by decreasing MMP-2 and MMP-9.
5.Pathologic changes of sinoatrial node P cells and cardiac myocytes in experimental fluorosis.
Wei YI ; Yan-ni YU ; Chen-yun ZHANG ; An-zhi WEN ; Yi-guo LONG ; Hua ZHANG ; Zhi-zhong GUAN
Chinese Journal of Pathology 2010;39(4):264-265
Animals
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Female
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Fluorosis, Dental
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blood
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etiology
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Glutathione Peroxidase
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blood
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Male
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Malondialdehyde
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blood
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Myocytes, Cardiac
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pathology
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ultrastructure
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Random Allocation
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Rats
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Rats, Sprague-Dawley
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Sinoatrial Node
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pathology
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ultrastructure
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Sodium Fluoride
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poisoning
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Superoxide Dismutase
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blood
6.Study of changes in the immune function of patients with advanced Hepatic carcinoma after intra-arterial thermochemoembolization
Wei CAO ; Yi WAN ; Hongxin ZHANG ; Lianjun QI ; Zhimin WANG ; Wenxian LI ; Daihui NI
Journal of Chinese Physician 2009;11(2):176-178
Objective To study the changes in the immune function of advanced hepatic carcinoma patients after thermochemoembo-lization via hepatic artery. Methods Forty advanced hepatic carcinoma patients were randomized divided into 2 groups. A group (n=20) was treated by perfusion with ADM(40mg) + MMC(10mg) in 37℃ 9% sodium chloride solution via hepatic artery, and B group (n=20) was treated by perfusion with ADM(40mg) + MMC(10mg) in 60℃ 9% sodium chloride solution via hepatic artery, then all were embolized with some quantity of lipiodol. Flow cytometry (FCM) was used to detect the changes in percentages of T-lymphocyte subsets (CD3<'3, CD4<'+, CD8<'+) and NK cells, and the contents of soluble interleukin-2 receptor (sIL-2R) were detected by double sandwich ELISA before and after therapy. LDH enzyme-release assay was used to detect cytotoxic activity of NK cells. Results Compared with pre-therapy group or A group after therapy, the percentage of CD4<'+ cells of B group after therapy significantly increased (P<0.05), the percentages of CD8<'+ cells and the content of sIL-2R of B group after therapy markedly decreased (P<0.05). The percentages of NK cells and cytotoxic activity NK cells of B group after therapy were significantly higher than those from pre-therapy group or A group (P<0.05). Conclusion Intra-arterial thermochemoembolization may activate and improve cell-mediated immune function with a certain degree.
7.Epidemiological analysis of malaria situation in Wenzhou City in 2015
Qingxiang NI ; Yi CHEN ; Jingjiao WEI ; Qiongjiao PAN ; Xiaoming ZHANG ; Ling LI
Chinese Journal of Schistosomiasis Control 2017;29(2):243-245
Objective To analyze the characteristics of malaria prevalence in Wenzhou City,so as to provide the evidence for improving the comprehensive control of malaria. Methods The epidemiological data of malaria cases in Wenzhou City in 2015 were collected and analyzed with the descriptive epidemiological methods. Results Totally 24 imported malaria cases were reported in Wenzhou City in 2015 with the incidence of 0.26 per 100000 and no case was dead. Plasmodium vivax,P. fal-ciparum,and P. ovale were identified in 1(4.17%),20(83.33%),and 3(12.50%)cases,respectively. The cases reported in Rui'an,Cangnan and Lucheng counties/districts accounted for 70.83%(17/24)of the total cases in Wenzhou City. The cases were mostly concentrated in male young adults and 23 cases(95.83%)were imported from Africa. Conclusion Malaria epi-demic situation in Wenzhou City is relatively stable and no local malaria cases were reported in 2015. However,the control work of imported malaria should be strengthened.
8.Expression of hypoxia-inducible factor 1 alpha and glucose transporter 1 and its significance in human breast carcinoma
Langsong HAO ; Qing NI ; Guiqing JIA ; Geng WANG ; Kun QIAN ; Yanjun LIU ; Yi ZHANG ; Xiaoting WU
Cancer Research and Clinic 2008;20(12):812-815
Objective To investigate the expression of hypoxia-inducible 1 alpha(HIF-lα)and glucose transporter 1(Glut1)in human breast cancer and its relationship to proliferating cell nuclear antigen (PCNA)protein and clinical pathologic factors.Methods Immunohistochemical staining was used to measure the expression of HIF-lα.Glut1 and PCNA in human breast fibroadenoma,usual hyperplasia and breast carcinoma.Results HIF-1α expression was not found in breast fibroadenoma and hyperplastic Iesions.In contrast.the positive rate of HIF-1α was found in the ductal carcinoma in situ 55%(DCIS,11/20)and the invasive breast carcinoma 85%(51/60).Glut1 positivity in breast carcinoma was 58.8%(47/80).The totsl positive rate of PCNA in breast carcinoma was 75%(60/80),that in DCIS was 65%(13/20)and that in invasive carcinoma was 78.3%(47/60).There was a positive correlation between HIF-lα and Glut 1 level (r=0.653,P<0.01),a positive correlation between HIF-1α and PCNA level(r=0.693,P<0.01);and also a positive correlation between Glutl and PCNA level(t=0.742.P<0.01).conclusion The overexpression of HIF-lα and its target gene Glut1 played important roles in carcinogenesis and progression of breast carcinoma and closely correlated with cell proliferation of breast carcinoma and may become a new target for treatment of breast carcinoma.
9.Up-regulation of miR-200 a attenuates TGF-β1-induced activation and collagen synthesis in rat pancreatic stellate cells
Youli ZHANG ; Guoying WANG ; Yi ZHAO ; Ping LI ; Xin LIU ; Xin NI ; Min XU
Basic & Clinical Medicine 2015;(1):48-53
Objective To investigate the effect of miR-200 a mimic on transforming growth factor β1-mediated acti-vation and collagen secretion of rat pancreatic stellate cells .Methods PSCs were isolated and cultured from pan-creatic tissue and identified by desmin , GFAP and α-SMA immunofluorescence staining .PSCs of 2nd generation were divided into control group , TGF-β1 group, TGF-β1+miR-NC group and TGF-β1+miR-200a mimic group.α-SMA and collagen Ⅰ protein were measured by Western blot and immunofluorescence staining .The mRNA ofα-SMA and collagen Ⅰ and the expression of miR-200a were detected by quantitative real-time PCR.Results TGF-β1 stimulates the activation of PSCs and promote collagen synthesis in time-dependment manner ( P<0.05 ) . After transfection of the mimic , treating with the same concentration of TGF-β1, the expressions of protein and mR-NA of both α-SMA and collagen Ⅰ decreases significantly ( P<0.01 ) .Conclusions Over-expression of miR-200 a significantly attenuates α-SMA activity and further affects the collagen synthesis of TGF-β1-dependent activa-tion of PSCs.The mechanisms are potentially related to the biological effects of TGF-β1.
10.Congenital malignant melanoma in a neonate.
Hai-ping ZHANG ; Shan ZHONG ; Xian-yi JIANG ; Ming-ni YANG ; Pei-qiong CHEN
Chinese Journal of Pathology 2005;34(1):57-58
Follow-Up Studies
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Forearm
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Humans
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Infant, Newborn
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Male
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Melanoma
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congenital
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surgery
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Skin Neoplasms
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congenital
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surgery