1.Effects of aspirin on promoter activities of human MMP-9 gene
Chinese Journal of Clinical Pharmacology and Therapeutics 2004;0(10):-
0.05). CAT expression of pCAT 1.28 and pCAT 0.65 are 2 and 1.6 times as high as the control group's. CAT expression of pCAT 1.28, pCAT 0.65 and pCAT 0.54 were 2.5, 2.2 and 1.3 times as high as the control group's. Aspirin inhibited the promoter activities of pCAT 1.28, pCAT 0.65. And the inhibition of Aspirin was reversed by PMA. CONGCLUSION:Aspirin can inhibit the expression of human MMP-9 gene in the transcriptional level and can inhibit the formation and development of prostatic carcinoma.
2.The Role of Induced Sputum in Monitoring Airway Inflammation of Chronic Obstructive Pulmonary Disease
Journal of Chinese Physician 2000;0(12):-
Objective To investigate the role of induced sputum in monitoring airway inflammation of chronic obstructive pulmonary disease (COPD). Methods Induced sputum was taken from 26 patients with stable COPD. IL-8 level in the sputum was detected, and the lung function of the patients was determined. 15 healthy volunteers served as control group. Results The total cell count and the number of AM and PMN in sputum were significantly higher in the patients than those in the control group (P
3.Pelvic radiation disease:A new starting point of treatment of complications caused by radiotherapy
Journal of Medical Postgraduates 2015;28(10):1095-1097
Radiotherapy is an important method of tumor treatment .The incidence of complications caused by radiotherapy is high, which seriously effect patients′quality of life.The current terms of radiation enteritis , radiation proctitis and radiation cystitis can not reflect the changes of physiopathology after radiotherapy .Nowadays , a consensus has been gradually reached that 'pelvic radiation disease'is a more accurate description .This article mainly introduces the definition evolution , significance and current status of pelvic radiation disease to draw the attention of domestic related professionals .A new starting point is opening for the curing of radiotherapy-related complications .
4.The changes and significance of atrial natriuretic peptide after experimental pulmonary thromboembolism
Chinese Journal of Primary Medicine and Pharmacy 2008;15(4):592-593
Objective To compare plasma levels of ANP in experimental and control groups and continuously explore the value of ANP in diagnosis and treatment of acute PTE. Methods Thirty guinea pigs were randomized to PTE group(n = 15) and control( n = 15) group. The plasma level of ANP was examined by radioimmunoassay.Moreover, pulmonary embolism(PE) was explored at dissection and on microscopic examination after PTE. Results (1)The plasma levels of ANP in the early phase of PTE group were significantly higher than those in control group(P<0.05). (2)The plasma levels of ANP after PTE were significantly higher than those before PTE( P<0.05). (3)In the late phase of PTE, the plasma levels of ANP in PTE group declined to normal levels, compared with control group, and there was no significant difference( P>0.05). Conclusion (1) ANP, as a vasodilatory factor,was involved in mechanism of PTE,especially in the early phase of acute PTE. (2)The levels of ANP in plasma played as a sensitive marker used to observe conditions and seriousness of PTE.
5.Review on the detection of tear pathogen and immune component and its clinical significance
Chinese Journal of Experimental Ophthalmology 2021;39(2):154-160
Ocular surface diseases are common diseases in ophthalmology.It is difficult for clinicians to make early and accurate diagnosis based on symptoms, signs and serologic examination.Compared with the blood test, the tear test can reflect the condition of the local ocular surface and it has the characteristics of being non-invasive, having high diagnostic accuracy and fast diagnostic speed.Tear detection uses modern detection techniques such as polymerase chain reaction, enzyme-linked immunosorbent assay, gene chip and protein chip to detect the pathogen and immune components in tear, including microbial nucleic acid, tear antibody (IgM, IgG, IgE, IgA, antinuclear antibody, etc.) and cytokines (interleukin, tumor necrosis factor, interference factor, transforming growth factor, epidermal growth factor, etc.). Tear detection provides information about the pathogen infection and immune response on the ocular surface.At present, a large number of domestic and foreign tear detection studies show that there are certain regular changes in tear composition, not only in ocular surface diseases, uveitis, fundus diseases, thyroid related ophthalmopathy, but even in systemic diseases such as diabetes, hepatitis B, acquired immune deficiency syndrome etc.In addition, the research of tear pathogen and immune components is of great significance to study the cause, biochemical and immune process, treatment of diseases.In this paper, the latest research progress of tear collection, the clinical significance of tear pathogen and immune components and the characteristics of tear in various diseases was summarized and analyzed to provide reference for clinical practice.
6.Biofilm formation and esp, gelE, ebpA genes and QS-fsr system in Enterococcus faecalis
Yong QI ; Binbin ZOU ; Yong WU
Chinese Journal of Laboratory Medicine 2010;33(10):931-935
Objective To investigate the association of esp, gelE, ebpA and QS-fsr system and biofilm formation in Enterococcus faecalis. Methods Totally 24 isolates of Enterococcus faecalis were collected from urine and catheter of clinical urine tract infection patients in Third Xiangya Hospital from Oct. 2007 to Jun. 2008, and were divided into biofilm group and non-biofilm group. The luminance ratios of esp, gelE, ebpA and fsrrB of Enterococcus faecalis in biofilm group and non-biofilm group were detected by RT-PCR. And the expression of esp, gelE, ebpA, fsrrB genes in different groups were detected by real-time PCR and were relatively quantitated through 2-△△Ct method. Moreover, the relevancies between that fourgenes and biofilm formation in Enterococcus faecalis were analyzed respectively. Results The expression of esp and ebpA in biofilm group were 298 times and 59 times more than the non-biofilm group. The expression level ofgelE and fsrB in biofilm group were 1/244 and 1/249 times less than the non-biofilm group, and the luminance ratios of esp, gelE, ebpA and fsrB were not significant between the two groups (rank sum was 92,79, 42 and 34 respectively,all P > 0. 05 ). Conclusions The results showed that the biofilm formation in Enterococcus faecalis was promoted by esp and ebpA, and was inhabited by gelE and fsrB, which suggested that the expression of esp, ebpA and gelE genes was regulated by fsr system.
7.Research on clinical distribution and antimierobiai resistance to bacterial biofiim in urinary tract infec-tions
Binbin ZOU ; Yong QI ; Yong WU
International Journal of Laboratory Medicine 2009;30(5):461-463
Objective To clarify the clinical distribution and antimicrobial resistance characteris-tic of bacterial biofilm during catheter-associated urinary tract infection,and to simulate biofilm "real state" in vivo. Methods Totally 120 patients with catheter-associated urinary tract infections (UTIs) were enrolled in the study. The urine specimens were collected for screening biofilm strains and the corresponding planktonic strains. The biofilm was detected with semi-quantitative detecting method. Antibiotics susceptibility test were performed on the biofilm bacteria to clarify the difference of drug resistance in common MH medium the between biofilm strains and the corresponding planktonic strains,as well as the difference of drug resistance of positive strains of the biofilm between Poloxamer medium and common MH medium. Results Totally 48 strains (48/120,40%) of biofilm bacteria were detected. The antibiotic susceptibility test of planktonic and biofilm bacteria in Mueller-Hinton agar showed no significant difference (P>0.05), while the antibiotic resistance of biofilm bacteria in Muel-ler-Hinton agar and Poloxamer hydrogel was statistically different (P<0.05),and the former was stronger. Conclusion The biofilm bacteria during the urinary tract infection were mainly Staphylococci and Enterococci. The antimicrobial resistance of planktonic and biofilm bacteria have no significant difference in vitro, h is speculated that Poloxamer media may simulate the real living environment of biofilm bacteria and display their "true" drug resistance.
9.Study on Antitumor Activity in Vivo and Effect on Hematopoiesis of Extract of Spatholobus suberctus Dunn
Qi FU ; Xiaoqin LUO ; Yong TANG
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(12):-
Objective To observe the effect of antitumor and hematopoiesis of the extract of Spatholobus suberctus Dunn (SSCE) in vivo. Methods The mouse model of Lewis lung carcinoma was used to investigate the effects of SSCE on tumor growth and hematopoiesis by detecting the counts of peripheral blood, the counts and classify of the cells in bone marrow. Result The tumor inhibitory rate of SSCE on Lewis lung cancer was 30.65%. SSCE can stimulate the proliferation of bone marrow cells and relieve the marrow depression induced by chemotherapy, at the same time, the physique of the mouse treated by SSCE was not effected. Conclusion SSCE exits antitumor effect, moreover, it can stimulate the bone marrow cells to proliferate and relieve the marrow depression produced by chemotherapy.
10.Effect of Ambroxol on NF-?B activation of macrophage in the induced sputum in chronic obstructive pulmonary disease.
Yong QI ; Yuepeng GUO ; Jizhen WU
Chinese Journal of Practical Internal Medicine 2002;0(08):-
Objective To investigate the effect of Ambroxol on NF?B activation of macrophage in the induced sputum in patients with stable COPD.Methods Induced sputum was taken from 47 stable COPD patients,who were divided into two groups randomly.Macrophages were collected,and NF-?B activation and IL-8 of induced sputum were determined by immunohistochemistry;SOD and MDA were determined synchronously.Results NF-?B activation in macrophage and IL-8 in the treated group were significantly decreased in patients of stable group than those in the controls.Conclusion Ambroxol can decrease NF-?B activation in macrophage in stable COPD patients.