1.Correlation between polymorphism of rs5029924 in A20 promoter region and posttraumatic susceptibility to sepsis
Chinese Journal of Trauma 2013;29(7):661-666
Objective To investigate relationship of single nucleotide polymorphism (SNP)at rs5029924 locus in A20 promoter region and posttraumatic sepsis.Methods PCR-DNA sequencing was used to analyze different gene distribution at rs5029924 locus of 103 trauma patients with sepsis (Group A),120 trauma patients without sepsis (Group B) and 135 healthy peoples (control group).Relation of different genotypes at rs5029924 locus to sepsis susceptibility was analyzed.Peripheral blood cells of healthy peoples of different genotypes were stimulated using lipopolysaccharides (LPS) in vitro.Expression of A20 mRNA was measured by fluorescent quantitative PCR,expression of A20 protein by flow cytometry,and levels of TNF-α and IL-1β by ELISA method.Results Frequency of rs5029924 genotypes CC,CT and TT was respective 77.8%,20.0% and 2.2% in control group; 63.1%,34.0% and 2.9% in Group A; 83.3%,15.0% and 1.7% in Group B.Significantly lower frequency of CC genotype was observed in Group A when compared to Group B and control group (P <0.05),but no statistical differences were recorded between Group B and control group (P > 0.05).CT/TT genotype increased risk coefficient of sepsis to 2.397-fold higher level when compared to CC genotype.Allele T increased prevalence of sepsis significantly as well (OR =2.056) when compared to allele C.After LPS treatment in vitro,CC genotype individuals revealed significantly higher levels of A20 mRNA and protein in peripheral blood leukocytes,but significantly lower levels of TNF-α and IL-1 β when compared to CT/TT genotype individuals.Conclusion Polymorphism of rs5029924 locus is associated with sepsis susceptibility and the reason may be that mutant genes affect promoter activity and down-regulate A20 expression,which fails to suppress inflammation.
2.Clinical Analysis of Patients with Primary Intestinal Tumous:A Report of 68 Cases
Jiayu LIN ; Yugang WU ; Qi CHEN
Journal of Chinese Physician 2002;0(S1):-
Objective To explore the diagnosis and surgical treatment of primary intestinal tumors, and improve the level of treatment. Methods Retrospective analysis of the clinical was made on the 68 cases of primary small intestinal tumors confirmed by pathological examination in our department in recent 20 years. HZ Results 34.8%(21/68) was benign tumors in 68 cases, and 69.1%(47/68) was malignancies. The common clinical prevsentations were abdominal pain (69.1%,47/68). gastrointestinal he morrhage (41.1%,28/68) and abdomen mass (13.2%,9/68). The preoperative misdiagnosis rate was 70.5%(48/68) .All the 68 cases performed operation, and no death. The 1 ,2 and 5 years survival rates of malignant tumors were 65.8%,42.1% and 29.3% respectively. Conclusions The clinical presertation of primary small intestinal tumor is non-spectific and the misdiagnosis rate is high. Kinds of diagnosis examinations should be done for the cases whose diagnosis are uncertain, and laboratory examinations should be considered if it is need. The main choice of treatment is surgery and the chemotherapy is necessary for malignant tumors also.
3.Preventive Effect of Heat-clearing and Toxicity-removing Method on Rabbit Atherosclerosis Induced by Chlamydia Pneumoniae Infection
Hui WU ; Yude LIU ; Wei WU ; Yugang DONG
Journal of Guangzhou University of Traditional Chinese Medicine 1999;0(02):-
[Objective] To observe the preventive effect of Huanglian Jiedu Decoction (HJD), a prescription with the actions of clearing heat and removing toxicity, on rabbits atherosclerosis (AS) induced by Chlamydia pneumoniae (CP) infection. [Methods] Fifty two New Zealand rabbits were fed with forage containing 2. 5g/kg cholesterol and were infected with CP via nasopharynx for three times during 6 weeks. At the end of the sixth week, forty four rabbits with serum CP-IgG positive were randomized into 4 groups: group A treated with HJD 2g?kg-1 ?d-1 by gastric gavage, group B with HJD 1g?kg-1?d-1, group C with azithromycin 20 mg?kg-1?d-1 and model group D with normal saline for 6 weeks. Group E was set up in 8 rabbits fed with fatty forage and served as the control. Serum levels of high-sensitive C reactive protein (hs-CRP) and CP-IgG were detected before infection, after infection and after treatment. At the end of the 18th week, the rabbits were executed and the pathological features of aortic tissue were observed under microscope. Meanwhile, the expression of CP-DNA and tumor necrosis factor ?(TNF-?) in the aortic tissue was detected with polymerase chain reaction (PCR) and immunohistochemical method respectively. [Results] At the end of the experiment, atherosclerotic changes were obvious in groups D and E, particularly in group D. Compared with group D, the atherosclerotic damage was much relieved, and AS indexes such as maximum intimal thickness (MIT), atherosclerotic damage percentage and plaque area index were much improved in groups A and C (P
4.Diagnostic value of anti-MCV antibodies for ankylosing spondylitis
Yugang LIU ; Lijuan WU ; Zonghai HU ; Li CHEN ; Yan PENG
Chinese Journal of Laboratory Medicine 2014;(6):455-458
Objective To investigate the diagnostic value of anti-mutated citrullinated vimentin (anti-MCV) and anti-cyclic citrullinated peptide (anti-CCP) antibodies for ankylosing spondylitis (AS), and to establish a new diagnostic method of AS based on anti-citrullinated protein/peptide antibodies (ACPAs) detection.Methods Totally 121 AS patients(AS group), 97 rheumatoid arthritis(RA) patients (RA group)and 103 healthy people(control group) were enrolled for the detection of serum levels of anti-MCV and anti-CCP antibodies using ELISA method as a diagnostic test .HLA-B27 in AS patients was tested by flow cytometry , and RF-IgM in RA and AS patients was detected by immune rate nephelometry .Receiver operating characteristics ( ROC) curve was used to analyze the diagnostic value and to determine the cut-off value.Anti-MCV and anti-CCP antibodies among each group were compared by Mann-Whitney U test, Chi-square test or Fisher′s exact test was used to compare positive rate .Results The anti-MCV levels in AS group [11.60 ( 12.36-25.83 ) U/ml ] were significantly higher than control group [ 11.60 ( 8.41 -13.54)U/ml ],U=2 413,P <0.001, while the levels of anti-CCP had no difference between the two groups [AS group 6.22 (4.30 -8.07) U/ml], and control group [6.01 (3.77 -7.58) U/ml], respectively;U=5 421,P=0.094.The calculated area under the ROC curve of anti-MCV was 0.806,and 14.67 U/ml was the optimal cut-off value with sensitivity of 0.645 and specificity of 0.942.In both HLA-B27 positive and negative AS patients , anti-MCV antibodies levels and positive rate were significantly higher than control group using new cut-off value above (U =133.5, P =0.001; U =2 279.5,P <0.001). Sensitivity of the combination detection of anti-MCV and anti-CCP ( MCV+CCP-) or RF-IgM ( MCV+RF-) were 60.3%(73/121), 62.8% (76/121) and specificity were 89.7% (87/97), 90.7% (88/97) respectively in differential diagnosis of AS and RA , which were significantly higher than anti-MCV detection alone in specificity (16.5%,16/97).Conclusions Anti-MCV could be a new biomarker for the diagnosis of AS .With high sensitivity and specificity , anti-MCV has an equal diagnostic efficiency in HLA-B27 positive and negative AS patients using our new cut-off value.Additionally, the combination detection of anti-MCV and anti-CCP or RF-IgM could be an effective method for differential diagnosis of AS and RA .
5.Grape seed proanthocyanidin extract inhibits proliferation and promotes apoptosis of ovary cancer cell line SKOV3
Yugang CHI ; Ling ZHONG ; Xia WU ; Yong WANG
Journal of Third Military Medical University 2003;0(23):-
Objective To study the biological effects of grape seed proanthocyanidin extract (GSPE) on human ovary cancer cells and to explore the molecular mechanism. Methods Human ovary cancer cell line SKOV3 were co-cultured with GSPE solution of the terminal concentrations of 25,50,100,200,400 ?g/ml respectively in 96-well plate. At 24,48,72 h after coculture,the following parameters were detected: cell growth curve,the inhibition rate of SKOV3 cells by MTT assay,DNA cycle by FCM,the apoptosis of SKOV3 by TUNEL and Annexin-V labeling method,the mRNA and protein expressions of survivin by semi-quantitative RT-PCR and Western blotting,respectively. Results GSPE dose-dependently inhibited the proliferation of the SKOV3 cells. Treated by GSPE,the progress of SKOV3 cells at S stage into G/M stage was inhibited. TUNEL showed that treated by 25 ?g/ml GSPE for 24,48 h,the apoptotic rates of SKOV3 cells were 31.98%,45.78% respectively. Annexin-V showed that after incubation with 25 ?g/ml GSPE for 24 h,the apoptotic rate was 14.68%. The survivin mRNA and protein expressions were both down-regulated. Conclusion GSPE inhibits the proliferation of malignant human ovary cancer cells and induces their apoptosis. Expression of survivin mRNA and protein may be related to cell growth inhibition and to the apoptosis mediated by GSPE in vitro.
6.Effects of simvastation on homocysteine-induced endothelial dysfunction and inflammatory response and its molecular mechanisms
Yunzhao HU ; Yugang DONG ; Yufeng ZHAI ; Jianhua LU ; Miaoxian WU ; Yi ZHOU ; Zongyun HE
Chinese Journal of Pathophysiology 2000;0(08):-
AIM: To investigate the effects of simvastation on homocysteine-induced endothelial dysfunction and inflammatory response and the underlying mechanisms of such effects. METHODS: MTT assay was used to detect cell viability, and DCFH-DA assay was used to examine the levels of reactive oxygen species (ROS). Furthermore, Western blotting was performed to detect protein expression and electrophoretic mobility shift assay (EMSA) was used to detect NF-?B DNA binding activity. RESULTS: Homocysteine (0.1-1 mmol/L) decreased the human umbilical vein endothelial cell (HUVEC) viability and increased the levels of ROS. Western blotting and ELISA showed that homocysteine significantly increased the expression of TNF-?, IL-6, MCP-1 and ICAM-1. However, pretreatment with simvastation (1-20 ?mol/L) reversed the decreased cell viability and markedly suppressed an increase in the ROS level and the expression of TNF-?, IL-6, MCP-1 and ICAM-1 induced by homocysteine. Homocysteine induced p38 phosphorylation and such phosphorylation was also inhibited by simvastation and antioxidant NAC. EMSA and Western blotting showed that homocysteine induced NF-?B activation due to the increased phosphorylation of the inhibitory protein (I?B?) as well as the degradation of I?B?, while simvastation pretreatment almost completely blocked the NF-?B activation as well as the phosphorylation and degradation of I?B?. CONCLUSION: Simvastation inhibits homocysteine-induced endothelial dysfunction and inflammatory response through interfering with ROS-p38-NF-?B pathway.
7.Complement activation in acute coronary syndromes
Suhua WU ; Hong MA ; Yugang DONG ; Jiangui HE ; Xinxue LIAO ; Jun LIU ; Wutao ZENG ; Zhimin DU
Chinese Journal of Pathophysiology 1999;0(09):-
AIM:To evaluate complement activation in patients with all forms of acute coronary syndromes(ACS)and to examine the relationship between the degree of complement activation and myocardial injury.METHODS:The subjects were divided into 2 groups:110 ACS patients(group ACS)and 18 healthy persons(group control).One hundred and ten patients with ACS were divided into 3 sub-group:51 patients with ST-segment elevated myocardial infarction(STEMI),28 patients with non-ST-segment elevated myocardial infarction(NSTEMI)and 31 patients with unstable angina(UA).Complement 3(C3),complement 4(C4),troponin T(TnT)as well as creatine kinase MB(CK-MB)were evaluated.RESULTS:Plasma C3 and C4 peak levels were significantly higher in patients with STEMI [(1 525?302)mg/L and(423?123)mg/L] and NSTEMI [(1 516?289)mg/L and(396?68)mg/L] than those in patients with UA [(1 275?172)mg/L and(356?91)mg/L] and the control subjects [(1 072?196)mg/L and(182?73)mg/L](P
8.Pharmaceutical Care for One Patient with Adult Purulent Meningitis Performed by Clinical Pharmacists
Rui BI ; Xiaolian QI ; Hongyan WU ; Ting SUN ; Fanning MENG ; Yugang SUN
China Pharmacist 2017;20(1):133-135
Objective:To explore the methods and ideas for developing pharmaceutical care in clinical practice. Methods: The pharmaceutical care performed by clinical pharmacists and the therapeutic scheme assisted by clinical pharmacists for one patient with adult purulent meningitis were analyzed retrospectively. Results and Conclusion:Through selection of anti-infective agents, treatment of adverse drug reactions and assessment of patients’ economic capacity,clinical pharmacists help provide reasonable medication to im-prove therapeutic efficacy, safety and economy.
9.Effects of TIMI risk index on predicting prognosis m patients with ST-elevation myocardial infarction
Rong ZHANG ; Suhua WU ; Hong MA ; Jiangui HE ; Xinxue LIAO ; Wutao ZENG ; Lichun WANG ; Yi LI ; Yugang DONG
Chinese Journal of Emergency Medicine 2008;17(8):830-833
Objective To evaluate the value of the TIMI risk index in predicting 30-day and one-yosr mortality and incidence of heart failure in patients with ST-elevation myocardial infarction (STEMI).Method Data of 229 patients with STEM1 from August 1999 to March 2006 in the First Affiliated Hospital,Sun Yat-sen University,were retrospeclively collected,analyzed and scored with TIMI risk index.When categorized into quintiles(≤12.5,12.5~17.5,17.5~22.5,22.5~30,>30) and modeled as a continuous variable,difference of prediction of 30day and one-year mortality and 30-day incidence of heart failure of patients were compared respectively.Results When categorized into quintilos and modeled as a continuous variable,30-day and one-year mortality and 30-day incidence of heart failure were increasing with increasing score of risk index (P<0.05).The area under the recewer operating characteristic curve were 0.65,0.68,0.67 and 0.70,0.72,0.70,respectively.Conclusions The TIM1 risk index can be used as a simple,rapid and practical tool to risk-stratify patients with STEMI.
10.Rendom Cotrol Study of Peri-operative Application of GLP-1 Analogue and Insulin on Myocardial Perfusion and Prognosis in STEMI Patients With Stress-induced Hyperglycemia
Liqiang FU ; Xinwei JIA ; Qi ZHANG ; Huanjun PAN ; Chunhong CHEN ; Shenghui LIU ; Yugang ZU ; Ya LI ; Yanmin WU ; Wenping ZHAO
Chinese Circulation Journal 2017;32(5):436-441
Objective: To explore the peri-operative application of GLP-1 analogue and insulin on myocardial perfusion and clinical prognosis in patients of acute ST segment elevation myocardial infarction (STEMI) with stress-induced hyperglycemia. Methods: Our research was a prospective single center randomized control study. A total of 114 consecutive STEMI patients received percutaneous coronary intervention (PCI) within 12h of onset were enrolled, the patients had no diabetes while blood glucose ≥11.1mmol/L at immediate admission. Based on random number table, the patients were divided into 2 groups: Observation group, the patients received GLP-1 analogue, n=59 and Control group, the patients received insulin, n=55. The post-operative myocardial perfusion, indicators of myocardial damage and cardiac function, myocardial infarct area (MIA) and myocardial salvage index (MSI) were compared between 2 groups. The patients were followed-up for 6 months to record the incidence of major adverse cardiovascular events (MACE). Results: At peri-operative period, compared with Control group, Observation group had decreased peak values of creatine kinase isoenzyme (CK-MB) and troponin T (cTnT), P<0.05. At 6 months post-operation, compared with Control group, Observation group showed increased myocardial perfusion and left ventricular ejection fraction (LVEF), P<0.05, reduced MIA (15±12) g vs (20±14) g, P<0.05 and 12% elevated MSI as (0.64±0.13) vs (0.56±0.12), P<0.001. The MACE incidence was similar between 2 groups, P=0.217. Conclusion: In STEMI patients with stress-induced hyperglycemia, peri-operative application of GLP-1 analogue may safely regulate blood glucose, improve cardiac perfusion and function, reduce MIA; while it had no influence on myocardial perfusion at peri-operative period and no impact on MACE occurrence at 6 months post-operation.