3.The heart functions of preschool and school-age children by means of electrical impedance tomography.
Jian-Xin SHEN ; San-Ming ZHANG ; Xiao-Jing WEN
Chinese Journal of Applied Physiology 2008;24(1):17-124
Age Factors
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Cardiac Output
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physiology
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Cardiography, Impedance
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methods
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Child
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Child, Preschool
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Electric Impedance
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Female
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Heart
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physiology
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Humans
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Male
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Stroke Volume
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physiology
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Tomography
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methods
6.Anticancer effect of tea polyphenols on implanted breast cancer
Yan-Ming ZHANG ; Li XU ; Xin-Yi CHEN ; Neoplastic HEMATOLOGY ;
International Journal of Traditional Chinese Medicine 2006;0(06):-
Objective To observe the growth inhibiting effect of tea polyphenols on implanted mouse breast cancer(EMT_6),and offer the foundation for the next study on its inhibiting angiogenesis effect and its molecular mechanism.Methods Mammary adenocarcinoma EMT_6 was cultured and propagated,then implanted on female BALB/c mice.Tea polyphenols was peroral administrated and local injected.Anticancer function was determined with regular methods.Result After tea polyphenols were taken by oral and local injection on EMT_6 mammary adenocarcinoma mice,the inhibitory ratio of tumor are respectively 37.43% and 40.94%.Conclusion Tea polyphenols had significant inhibitive effect on implanted breast cancer.This offered the foundation for the next intensiVe study on its inhibiting angiogenesis effect and its molecular mechanism.
7.Analysis on serum ghrelin levels and its correlation with metabolic disorders in elderly Chinese
Xin ZHUGE ; Ning SUN ; Ming LI ; Y ; Yun ZHANG ;
Chinese Journal of Geriatrics 2010;29(7):548-550
Objective To measure serum ghrelin level in elderly Chinese, and investigate the relationship of the serum ghrelin level with age, obesity and other metabolic disorders. Methods A total of 109 men aged over 60 years without history of smoking and alcohol consumption from health examination were enrolled in this study. Subjects were excluded if they had serious diabetic complications, coronary artery disease and hepatic or renal dysfunction. A cross sectional study was made on ghrelin level and the correlated metabolic disorders. Results Compared with ghrelin level in subjects with normal BMI [(823. 57±410.40) ng/L], the ghrelin level was significantly decreased in overweight and obese elderly male, [(442.42 ± 171.10) ng/L and (434.64 ± 177.65) ng/L respectively]. ghrelin was significantly lower in subjects with three or more metabolic disorders (420.84±165.91) ng/L than in those with less disorder. Single factor analysis showed ghrelin was inversely associated with BMI, TG and uric acid (r=-0.359,-0.243,-0.189), but it was not associated with age, blood pressure, fasting glucose and insulin levels. Multivariate analysis revealed only BMI significantly affected the level of ghrelin (β =-0.386). Conclusions BMI is closely associated with ghrelin in elderly male,ghrelin is significantly lower with increased number of metabolic disorders.
8.To promote the connotative development of independent institute through the cultivation of “Institute Culture”
Hong ZHANG ; Ai-ming JIA ; Wen-mei HU ; Xin JIN
Chinese Journal of Medical Education Research 2011;10(9):1036-1038
In the cultural construction of independent institute,there exist the contradiction between tradition and innovation,cultural conflicts between private enterprises and the university.Therefore,adhering to the people-centered concept,coordinating tradition and innovation,merging the advantages of university culture and private enterprises culture into a whole,cultivating the unique spiritual culture,harmonious system culture and unified material culture of independent institute,forming the distinctive “Institute Culture” with its own cultural tradition will provide reference for the theory and practice to enrich and improve the connotative development of independent institute.
9.Study on amotile bacteria of positive blood culture in new-born:the analysis of plasmid and restriction enzyme and determination of outer membrane protein
wan-ming, ZHANG ; shi-xiao, WU ; guan-xin, LIU
Journal of Applied Clinical Pediatrics 1992;0(05):-
Objective To search for the reasons of high positive rate of amotile bacteria and the diagnosis of septicemia in new-born Methods The blood was drawn from the different site of the new-born with septicemia and carricd out blood culture. The drug sensitivity test had been done by the method of paper stripdiffusion. The plasmids of bacteria were extracted rapidly by medified Birnboim method and the plasmid analyss was carried out. The plasmids's DNA of 35 epidemic strain was cut off by both restriction enzyme of Hind Ⅲ and EcoR Ⅰ. The outer membrane protein (OMP) was determined by SDS-polyacrylamide gel electrophoresis.Results There are 51 patients with positive blood culture amotile bacterium,of them, pollution; 35 cases (68.6%), septicemia: only 16 cases (31.4%),54.8% (57/104) strains bacteria have drug resistance to more of 12 drugs. 87.3% (165/189) strains bacteria have plasmids. They are cut off as 6 DNA fragments (1.9,2,4,5, 8.5 and 18Kb) by Hind Ⅲ restrietion enzyme. and as 5 DNA fragments (2,2.6,3.2, 6.3 and 22 Kb) by EcoR Ⅰrestrietion enzyme, it is showed that they come from a same clone. The epidemic strain include 10 slips OMP, but non-epidemic strain have 11 slip OMP, increase a 25Kd belt. The amotile bacteria with above-mentioned plasmid spectrum, restriction enzyme spectrum and OMP spectrum are only seen in the air, therapeutic dish and syringe needle.Conclusion The pollution is an important reason of amotile bactorium high positiye rate in new-born.Diagnosing septicemia should depend on bacteria culture, plasmid analysis restriction enzyme analysis of plasmid DNA, oMP determination and combining medical history and clinical manifestation.
10.MR molecular probes RGD-USPIO in evaluation effect of ucleoside combination on human hepatoma cell line Bel-7402 in vitro
Rongrong ZHAO ; Ming HAN ; Xin CHENG ; Shizhuang ZHANG
Chinese Journal of Medical Imaging Technology 2017;33(8):1163-1166
Objective To evaluate the effect and the anti-tumor mechanism of nucleoside combination on human hepatoma cell line Bel-7402 with Arg-Gly-Asp sequence labeled by ultrasmall superparamagnetic iron oxide (RGD-USPIO).Methods The tumor cells Bel-7402 of logarithmic phlyhase were divided into experimental group and control group,treated with 1 mmol/L nucleoside combination and 1640 medium respectively.The two group were co-cultured for 48 h,and were added RGD-USPIO and co-cultured for 6 h.Then the two groups were proceeded with MR scanning,and the signal intensity of T2WI were measured.After extraction of the total RNA and protein of experiment group and control group,the expression of integrin avβ3 was detected using real-time PCR and Western blot.Results The T2WI signal intensity of experimental group (997.35±42.83) was higher than that of control group (241.05±15.36,t 28.79,P<0.01).Compared with control group,the expression of integrin αvβ3 mRNA in experimental group was (0.22±0.02) times (t=4.50,P<0.01).According to Western blot,the protein bands of experimental group were relatively lighter than that of control group,the expression of integrin αvβ3 in experimental group was lower (t =11.88,P<0.01).Conclusion Nucleoside combination has anti-tumor effect by inhibiting integrin ligand-receptor binding,and the anti tumor mechanism may be related to the induction of tumor cell apoptosis.MR molecular probes can conveniently and accurately evaluate the anti-tumor effect of nucleoside combination on Bel-7402 cells.