3.Improve clinical scientific research with a solid base in clinical work
Changsen FENG ; Zhi ZHANG ; Gang WU
Chinese Journal of Medical Science Research Management 2010;23(3):216-封3
It is a common phenomenon that medical research is out of line with clinical work at present. In fact, there is intrinsic interrelation between clinical work and research. Thinking and exploration at clinics are part of the research, and any research based on chnical work not only has great value, but also receives strong support from the state. However, to translate clinical research into clinical practice is difficult, which requires evidence-based methodology, a knowledgable team with persistence andtechnologies, et al.
5.Treatment progress of extranodal NK/T cell lymphoma
Ming-zhi ZHANG ; Zheng-feng ZHU
Journal of Leukemia & Lymphoma 2011;20(10):626-628
Extranodal NK/T cell lymphoma is a kind of disease that is associated with EB virus infection and characterized by progressive distruction and necrosis of the nasal cavity and midline facial tissues, with histological features of diffuse lymphomatous cells inflitrate and inflammatory cells as abackground or angiocentric and angioinvasive inflitrate.The prognosis is poor,as it is highly aggressive and it can progress rapidly.This article mainly discusses and reviews the progress in treatment methods.
6. A New Procedure for Separation and Purification of Scutellarin from Erigeron multiradiatus
Chinese Herbal Medicines 2014;5(2):133-137
Objective: To establish a new procedure for isolating scutellarin from Erigeron multiradiatus. Methods: A proposed method was developed by combining macroporous resins with ODS column. Firstly, E. multiradiatus was extracted by ultrasound with 80% methanol. Preliminary separation was performed on macroporous resin column. The performance and adsorption characteristics of three macroporous resins, D140, D141, and D605, were compared and the enrichment procedure was optimized. Further purification was carried out by medium pressure liquid chromatography (MPLC) with ODS column. Results: It was demonstrated that D141 had better extractive effects on scutellarin. The MPLC conditions were optimized as follows: 15% ethanol aqueous as mobile phase with flow rate at 2.5 mL/min. The yield and purity of the isolated scutellarin were 1.20 mg/g and 96.5%, respectively. Conclusion: The overall procedure is efficient and low-cost, which is considered suitable for the separation and purification of scutellarin from E. multiradiatus. The results provide the scientific basis for developing and using scutellarin in clinic. © 2013 Tianjin Press of Chinese Herbal Medicines.
7.Compared study of the diffuse calcified distribution on X-ray mammography between benign and malignant breast lesions
Xi ZHANG ; Yinhua ZHANG ; Bin CAI ; Chengtang FENG ; Zhi WEN
Journal of Practical Radiology 2016;32(5):713-716
Objective To discuss the clinical significance of the diffuse calcified distribution in diagnosis of benign and malignant breast lesions .Methods 379 patients with different benign and malignant breast lesions confirmed by surgery underwent digital X‐ray mammography .The morphology ,distribution ,number ,diameter ,concentration and density of calcification in lesions ,the maximum range of the calcified area and other accompanied manifestations in benign and malignant breast lesions were analyzed .Results As for the morphology of calcification ,tiny polymorphic calcification was found in 58 .5% of malignant lesions ,meanwhile ,dot‐like one was found in 49 .3% of benign lesions .Fine linear calcification or branched linear one occurred in malignant lesions ,however ,round one occurred in benign lesions .As for the calcification distribution ,regional distribution was found in 43 .9% of malignant lesions , meanwhile the clustered distribution was found in 58 .4% of benign lesions .And all lobar or segmental distribution was seen in malig‐nant lesions .As for the calcification diameter ,the calcification with the diameter less than 0 .5 mm occurred in 71 .6% of malignant lesions ,however ,that with diameter more than 1 .0 cm occurred in 69 .3% of benign lesions .As for the concentration of calcification , lesions with calcification more than 25 were 71 .8% of malignant ones ,whereas those with calcification of 15-25 were 58 .4% of be‐nign ones .As for calcified density ,uneven calcification occurred in 94 .2% of malignant lesions ;however the even one occurred in 63 .4% of benign lesions .The maximum diameter of calcification ranged from 40 mm to 80 mm was found in 59 .0% of malignant lesions , whereas that ranged from 0 mm to 40 mm was in 77 .2% of benign lesions .Conclusion Statistical differences have been found in the morphology ,distribution ,diameter ,concentration ,density and maximum diameter of calcification between the breast benign and ma‐lignant lesions .
8.The role of Clq receptor and anti-Clq antibody in the pathogenesis of systemic lupus erythematosus
You SUN ; Feng-Shan ZHANG ; Zhi-Yi ZHANG ;
Chinese Journal of Rheumatology 2000;0(06):-
Objective To investigate the expression of Clq complement receptor(ClqRp and gClqR)in the peripheral blood mononuclear cells(PBMC)of systemic lupus erythematosus(SLE), and the corre|ation between serum levels of complement lq(Clq)and anti-Clq autoantibodies(ClqAb)with ClqRp and gClqR is analyzed. The probable mechanism of ClqRp and gClqR in the development of SLE is explored. Methods The peripherial blood monouclear cells of 58 SLE patients and 30 healthy subjects were collected for the detection of the expression of ClqRp and gClqR by flow cytometry. The serum levels of Clq and ClqAb were detected by single radial immunodiffusion and enzyme-linked immunosorbent assay(ELISA)re- spectively. The correlation between ClqRp and gClqR and other disease activity parameters, such as Clq, ClqAb, SLEDAI score, anti-dsDNA antibody, C3, C4 levels were analyzed. Results The expression of ClqRp on mononuclear and neutrophiles of SLE was(7.2?2.3)% and(3.4?2.1)%, lower than that in healthy individuals [(10.6?2.1)% and(9.0?8.7)% ], P
10.Effects of selenium enriched Spirulina platensis on antioxidation and regeneration of rat hepatocytes after hepatectomy
Feng HUANG ; Zhi HUANG ; Fang YANG ; Wenjie ZHENG ; Xiaolin ZHANG
Chinese Journal of General Surgery 1993;0(01):-
Objective To explore the effects of selenium enriched Spirulina platensis(Se-SP) on(antioxidation) and regeneration of rat hepatocytes after partial hepatectomy.Methods Sixty-seven percent(hepatectomy) was performed in rats after high dose(H) and low dose(L) Se-SP was given via gastric tube for 7 days.Then selenium(Se),glutathione peroxidase(GPx),superoxide dismutase(SOD) and(malondiaoldehyde)(MDA) in hepatocytes were determined.The results were compared with normal saline(giving) via gastric tube before hepatectomy(C) and sham operation(S) groups.Hepatocytes were obtained(before) operation and 24h after operation,and the expression index of proliferating cell nuclear antigen((PCNA)) in hepatocytes was detected by immunohistochemistry,and the DNA damage of hepatocytes induced by peroxide was analyzed by comet assay.Results After partial hepatectomy,Se content,GPx and SOD(activity),and PCNA expression index were obviously higher(P