2.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
3.Clinicopathological and imaging features of 5 cases of lung sarcomatoid carcinoma and review of the literature.
Li-Feng LAO ; Zhi-Yong SUN ; Jun TANG
Chinese Journal of Oncology 2010;32(8):607-608
Aged
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Carcinoma, Squamous Cell
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diagnostic imaging
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metabolism
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pathology
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surgery
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Carcinosarcoma
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diagnostic imaging
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metabolism
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pathology
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surgery
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Follow-Up Studies
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Humans
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Ki-67 Antigen
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metabolism
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Lung Neoplasms
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diagnostic imaging
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metabolism
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pathology
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surgery
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Lymph Node Excision
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Lymphatic Metastasis
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Male
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Middle Aged
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Neoplasm Recurrence, Local
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Pneumonectomy
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Tomography, Spiral Computed
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Vimentin
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metabolism
4.Effect of jiangu erxian pill on proliferation and cell cycle of human osteoblast.
Zhi-an CHENG ; Yan-feng WU ; Zhi-yong ZENG
Chinese Journal of Integrated Traditional and Western Medicine 2002;22(2):129-132
OBJECTIVETo further explore the effect of Jiangu Erxian Pill (JGEXP) on proliferation and cell cycle of human osteoblast on the basis of previous clinical and experimental studies.
METHODSHuman primary osteoblast were isolated and cultured. The cell proliferation was tested by 3H-thymine incorporation and methyl thiazolyl tetrazolium (MMT) method and the cell cycle was determined by flow cytometry technique.
RESULTSIn the medium and high dosage JGEXP groups, the cell proliferation rate and index, and percentage of diploid synthesis phase (S phase) cells were significantly higher than those in the blank control group (P < 0.01 or P < 0.05), and similar to those in the estrogen group; and the cell apoptosis rate and percentage of G0-G1 stage cells were lower than those in the blank control group (P < 0.01 and P < 0.05).
CONCLUSIONJGEXP could effectively promote the cell proliferation and differentiation, and prevent the cell apoptosis of osteoblast in vitro.
Animals ; Apoptosis ; drug effects ; Cell Cycle ; drug effects ; Cell Division ; drug effects ; Cells, Cultured ; Drugs, Chinese Herbal ; pharmacology ; Female ; Humans ; Osteoblasts ; cytology ; Random Allocation ; Rats ; Rats, Sprague-Dawley
5.Evaluation of renal function and pathologica changes in patients with lupus nephritis by ~(99)Tc~m-DTPA renal dynamic imaging
Xian-jun, LI ; Gui-zhi, LI ; Jian-mei, SUN ; Zhi-hua, ZHAO ; Feng-qi, LI ; Ming, LI
Chinese Journal of Nuclear Medicine 2010;30(1):35-37
Objective To analyze the relation between ~(99)Tc~m-DTPA renal dynamic imaging and pathological changes in patients with lupus nephritis (LN).Methods Ten normal control and 29 patients with LN underwent ~(99)Tc~m-DTPA renal dynamic imaging.The LN patients were divided into two groups:silent LN (SLN) group,18 patients;and obvious LN (OLN) group,11 patients.For each case,glomerular filtration rate (GFR),peak time (t_p),half excretion time (t_(1/2)) and the excretion rate at 20 min (R_(20)) were calculated.Assessment of renal function on the scintigraphic images was evaluated by nuclear medicine physicians.The t-test,Fisher'exact probability and R×C association were used for data analysis.Results There were significant differences between normal people and two goups of LN in tp(t=5.3,9.3,both P<0.05),t_(1/2)(t=6.9,12.0,both P<0.05)and R_(20)(t=10.1,12.1,both P<0.05).As to GFR,there was significant decrease in OLN patients(t=4.1,P<0.05),but not in SLN patients(t=1.7,P>0.05).Diagnoses of renal function by renal dynamic imaging were compared with the renal pathological changes (r=0.2273,P<0.05).Conclusions ~(99)Tc~m-DTPA renal dynamic imaging is useful for evaluation of the early stage renal function for LN patients and to diagnose LN patients with no symptom of renal impairment.It may help to assess the degree of renal parenchymal damage while obviating the need for renal biopsy in these patients.
7.THE STUDY OF DEGRADATION OF ANTHRACENE,PHENANTHRENE AND PYRENE BY EFFECTIVE FLAVOBACTERIUM
Mai-Qian NIE ; Zhi-Jie ZHANG ; Xian-Feng SUN ; Ping LEI ;
Microbiology 1992;0(05):-
Two effective flavobacterium strains FCN1 and FCN2 were isolated from the sludge which had been contaminated by coke-plant waste water for a long time.Before isolation,the naphthalene was used to cultivate such sludge for seven weeks as the sole carbon source and its concentration adding to the cultivating system was increased up to 50mg/L gradually.The polycyclic aromatic hydrocarbon degrading characteristics of our isolates themselves and with inorganic ions was studied respectively.The testing results show that our two isolates can transform and degrade anthracene,phenanthrene and pyrene.After 10 hours reaction,the removing rates of anthracene,phenanthrene and pyrene by FCN1 were 84%,69%,80% and by FCN2 were 76%,40%,71% respectively.After 106 hours,the removing rates of TOC caused by anthracene,phenanthrene and pyrene were 70%,54%,69% by FCN1 and 63%,50%,46% by FCN2.The Fe 3+ and Mg 2+ can accelerate the degrading reaction of FCN1.
8.A COMPARATIVE STUDY ON FOUR METHOD OF FUNGI LIPID EXTRACTION
Zhi-Feng LI ; Ling ZHANG ; Xiao-Jing SHEN ; Bing-Sen LAI ; Shu-Qin SUN ;
Microbiology 1992;0(06):-
Lipids of Thamnidium elegans,Mortierella ramanninace,Rhizopus arrhizus,Pythium irregulare and Rhodotorulla aurantiaca were extracted by Soxhlet extraction,supercritical-CO 2 fluid extraction,acid-heating extraction and organic solvent extraction,respectively.Four extraction methods were evaluated on sample treatment,minimum sample quantity,requirements of apparatus,ability of treating sample and content of lipid.The components of fatty acids were analysed by gas chromatography.Soxhlet extraction can acquired maximum lipid content,but it took the most time.Supercritical-CO 2 fluid extraction and acid-heating extraction has a same lipid content which was lower than that of Soxhlet extraction.Acid-heating extraction was the most handy,and its ability to treat sample in a hour was the most powerful.Organic solvent extraction was less efficient.Acid-heating extraction was a simple and efficient method of fungi lipid extraction fitting to breed mutant strains that highly producting lipid and polyunsaturated fatty acids.
9.A feasibility study of recombinant adeno-associated virus(rAAV)as a vector for transferring a target gene to retina
Jian-Ming, WANG ; Ya-Zhi, FAN ; Na, HUI ; Lei, XIONG ; Hai-Xiao, FENG ; Nai-Xue, SUN
International Eye Science 2008;8(9):1740-1742
AIM:To study the feasibility of recombinant adeno-associated virus(rAAV)as a vector to transfer the green fluorescent protein(GFP)gene as a target gene into rabbit retina.METHODS:Intravitreal injection of rAAV-gfp was performed in either eye for each rabbit with the other eye taken as control.At the 3rd,7th,and 14th day after injection,the eyeballs were removed,and the retinas were flat-mounted on glass slides to inspect the retinal fluorescence,respectively.RESULTS:After intravitreal injection of rAAV-gfp,the presence of fluorescent spots in the cytoplasm of retinal cells indicated that GFP gene was efficiently transferred and expressed in the rabbit retina.CONCLUSION:Recombinant adeno-associated virus is a reliable and simple vector for transferring target gene,e.g.,GFP gene,to the retina.
10.The effects of low doses arsenic on serum enzymes and biochemical indicators in rabbits
Xing-jun, FAN ; Li, SUN ; Jing, ZHANG ; Yun-yun, LI ; Zhi-feng, MA ; Qiu-ling, PEI
Chinese Journal of Endemiology 2011;30(1):20-22
Objective To observe the sub-chronic effects of low doses of arsenic poisoning in rabbits exposed to different periods on some of the serum enzymes and biochemical indicators, and to provide the basis for screening of meaningful hematologic indicators for early diagnosis of arsenic poisoning. Methods Twelve adult rabbits,weighing 2.0 - 3.5 kg, were randomly divided into four groups, 3 in each group, and they were fed with drinking water containing sodium arsenite 0(control),0.01,0.05,0.25 mg/L, respectively. Serum alanine aminotransferase (ALT), aspartate amino transferase (AST), alkaline phosphatase (ALP), γ-glutamyl transacylase (y-GT), total protein(TP), albumin(ALB), globulin(GLP), and ALB/GLP of rabbit were measured by SYSMEX-180 automated biochemistry analyzer after 8 weeks and 12 weeks exposure. Results The results showed that ALT in 0.05 mg/Lgroup of 12 week[(60.00 ± 4.14)U/L]increased significantly compared with the control[(41.50 ± 2.12)U/L, P <0.05];AST in 0.25 mg/L group of 8 week and 12 week[(46.50 ± 3.21 ), (52.33 ± 3.81 )U/L]increased significantly compared with the control[(21.33 ± 3.53), (29.50 ± 3.23 )U/L, all P < 0.05];ALP in 0.05 mg/L and 0.25 mg/L group of 12 week [(78.68 ± 4.85 ), ( 103.00 ± 7.83 ) U / L]increased significantly compared with the control [(45.50 ± 5.50)U/L, all P < 0.05];γ-GT in 0.05 mg/L group of 12 week[(19.33 ± 7.50)U/L]increased significantly compared with the contro1[(8.50 ± 3.53)U/L, P< 0.05]. TP, ALB, GLP, ALB/GLP of different groups of 8 week and 12 week were not significantly different statistically(F= 0.77,0.02,0.16,3.14 and 0.51,0.29,0.41,0.52, all P > 0.05). Conclusions Zero point zero five mg/L and higher doses of sub-chronic arsenic exposure has some major damage to the liver. Compared with other serum enzymes and the biochemical indexes, serum AST is a early sensitive indicator of liver injury of the arsenic poisoning.