1.Progress and application of podoplanin's biological functions
Cancer Research and Clinic 2016;28(9):634-637
Podoplanin (PDPN), being mucin-like transmembrane sialoglycoprotein, is expressed on lymphatic endothelial cells, with its significant role in the development of inflammation, separation of blood and lymphatic circulation, platelet aggregation, integrity of the renal filtration barrier and alveolar. In recent years, many researches have demonstrated that PDPN is overexpressed on the surface of some tumor cells. The interaction between PDPN and CLEC-2 plays an important role in the development of tumor growth, migration and transfer, therefore, anti-PDPN antibody offers a new direction for the treatment of tumor patients. This paper aims at reviewing the progress and application prospect of PDPN.
2.Need analysis of clinical research consultation for clinical epidemiology in a general hospital
Chinese Journal of Medical Science Research Management 2011;24(4):235-237,243
Objective To understand the needs for and supply of clinical research consultation at the clinical epidemiological unit (CEU) in a general hospital. Methods Data were collected from work records of 2008 of CEU and were analysed. Results There were three faculties and three graduate students in the CEU, who altogether provided 272 consultations in 2008. 147 of the consultants were doctors (54.0%), and 90 were graduate students (33.1%). With regard to the content of consultation, 106 (39. 0%) were for bio-statistical methods, 96 (35. 3%) for project design, 36(13.2%) for paper writing and 24 (8.8%) for others. The professor of the CEU provided more consultation on project design (71/139, 51.1%) than assistant professors (22/151, 19.1%) and graduate students (3/18, 16.7%) (P<0.01). The assistant professors (66/151, 57.4%) and graduate students (10/18, 55.6%) provided consultation on bio-statistical methods more than the professor (30/139, 21.6%) (P<0. 01). Conclusion Doctors and graduate students in the general hospital need clinical research consultation service from the CEU. It is necessary and possible to establish a CEU in general hospital to meet the needs of clinical epidemiological consultation. The free consulting policy is effective in improving the accessibility and satisfaction of the consulting service.
3.Hedgehog signaling pathway and pancreatic cancer
Yiming ZHAO ; Quan LIAO ; Yupei ZHAO
Chinese Journal of Endocrine Surgery 2016;10(3):240-243
Hedgehog (Hh) signaling is critical for embryonic development and in differentiation,proliferation,and maintenance of multiple adult tissues.Deregulation of the Hh pathway is associated with Multiple pathological steps of PDAC(Pancreatic ductal adenocarcinoma).A prominent desmoplastic stromal reaction is the pathological hallmark of PDAC,it contributes to the formation of the hypovascular and hypoxic microenvironment of PDAC.And Hedgehog signaling is one of the most crucial pathways that maintains and activates the stroma.Clinical trials of Hedgehog signaling inhibitors in treatment of PDAC has been conducted,but results have been disappointing.Recently,to undercover the reason of the failure of clinical trial,more work has been done to uncovering the underlying role of stroma in PDAC.
4.Effects of ozone aging on the color stability of SY-1 silicone elastomer
Yan CUI ; Yiming ZHAO ; Longquan SHAO
Journal of Practical Stomatology 1995;0(04):-
Objective:To study the effects of ozone aging on the color stability of the SY-1 silicone elastomer. Methods :40 SY-1 silicone elastomer samples were prepared and grouped into 4 with 10 in each group. The samples in each group were painted with gouache color, oil pigment and inorganic salt respectively, one group was used as the control. Then the samples were treated with ?=10 -4 % ozone at 10~16 mm/s for 72 h. The color of the samples were measured by 1976 CIE L *a *b * standards of chromatic aberration before and after ozone treatment. The chromatic aberration was expressed as △E=〔△L *)2+(△a *)2+(△b *)2〕 1/2. Results :After 72 hours of ozone aging, △E of the samples in the groups of control, gouache color, oil pigment and inorganic salt was 0.55?0.11, 3.55 ? 0.09, 1.40 ? 0.11 and 1.57 ? 0.07 respectively ;Conclusion:Under the ozone aging condition, the SY-1 silicone elastomers stained with oil pigment and inorganic salt may have better color stability than that with gouache color.
6.Diagnostic value of determining AFP,AFU and TSGF in patients with primary hepatic carcinoma
Ruixia ZHANG ; Yiming YANG ; Xuefeng ZHAO
International Journal of Laboratory Medicine 2006;0(02):-
Objective To explore the diagnostic value and clinical significance of simultaneous detection of AFP,AFU and TSGF in patients with primary hepatic carcinoma(PHC).Methods Serum AFP,AFU and TSGF were detected simultaneously in 62 patients with PHC and 30 controls.Results The levels of AFU and TSGF in primary hepatic carcinoma were all significantly higher than that of controls(P
7.Progress of tumor-associated macrophages as an therapeutic target against tumors
Weiping ZHU ; Yiming ZHAO ; Lu WANG
International Journal of Surgery 2015;42(10):697-700
Tumor-associated macrophages (TAMs) exist in the tumor microenvironment,and can be affected by various anticancer treatments and further affect tumor progression.Increasing evidence suggests that many of the clinical antitumor measures can play a unique and effective antitumor effect by regulating the recruitment,polarization and related pro-tumor behavior of macrophages in the tumor microenvironment.Now,tumor microenvironment immune remodeling has become a hot spot in the research of anti-tumor therapy.This paper reviews the related research progress on antitumor effects of TAMs as an therapeutic target.
8.ANTI-SHOCK EFFECT OF RAPID INFUSION OF 7.5% SODIUM CHLORIDE ON HEMORRHAGIC SHOCK IN DOGS
Tingsong WANG ; Yiming LU ; Chaoying ZHAO
Medical Journal of Chinese People's Liberation Army 2001;0(12):-
Objective To observe the anti-shock effect of rapid infusion of 7.5% sodium chloride(NaCl) in dog with hemorrhagic shock. Methods Five mongrel dogs were bled to mean arterial pressure(MAP) of 5.33~6.70kPa, and this pressure was maintained for 1 hour. Each dog received 7.5% NaCl (4ml/kg) intravenously, the infusion time was 2 min. The observation time was 4 hours. Results During the infusion period, the blood pressure was obviously lower than that of the shock period(P
9.Analysis of glucose dysbolism in patients with ectopic ACTH syndrome
Lei ZHAO ; Yiming MU ; Jingtao DOU ; Juming LU ; Changyu PAN
Chinese Journal of Endocrinology and Metabolism 2008;24(4):410-411
The characteristics of glucose dysbolism in ectopic ACTH syndrome (EAS) were investigated by analysing the clinical data of 117 patients with Cushing syndrome (CS). The patients with CS were divided into 3 groups : EAS group (n = 9) , Cushing's disease (CD) group (n = 67) and adrenocortical adenoma (AA) group (n =41). Retrospective analysis of the data covered the prevalence of secondary diabetes, blood glucose, HbAlc, blood potassium, and blood ACTH and 24 h urinary-free cortisol (UFC) levels. Compared with CD and AA groups, the prevalence of secondary diabetes and blood glucose level were higher in EAS group, while HbAlc level was lower. Blood glucose level in patients with ectopic ACTH syndrome decreased to normal after tumor removal.
10.The clinical application of fiuorescently - labeled monoclonal antibody against P- selectin
Yiming ZHAO ; Mingqing ZHU ; Yang HE ; Wenhong SHENG ; Changgeng RUAN
Chinese Journal of Pathophysiology 2000;16(12):1289-1291
AIM: To investigate the clinical significance in determination of the P- selectin levels in subjects with prethrombotic state or thrombosis by flow cytometry (FCM). METHODS: The P- selectin expression on platelet membrane in 42 patients with diabetes mellitus, 33 with hyperlipidemia, 23 with cerebral infarction and 20 healthy individuals, were analyzed using fluorescently - labeled SZ - 51 by direct FCM comparing with indirect FCM and enzyme- linked immunosorbent assay (ELISA). RESULTS: The level of P- selectin on platelet membrane is higher in DM (23.92 % + 15.83 % ), in hyperlipidemia ( 18.34 % + 9.46 % ) and in cerebral infarction ( 19.32 % + 10.38 % ) than normal subjects (3.38 % + 1.11% ) ( P < 0.01 ). In addition, similar results on P - selectin were obtained by indirect FCM and ELISA in patients with DM and cerebral infarction. CONCLUSION: FITC - labeled SZ - 51 - IgG can be used in FCM, and it would be a new and sensitive method in detecting platelet activation.