2.Apolipoprotein C3-an Important Molecule in Hyperlipidemia and Endothelial Dysfunction
Yun TAO ; Shaopeng CHU ; Juan YU ; Huimin WANG ; Lei SHEN
Progress in Modern Biomedicine 2017;17(22):4382-4386,4337
Apolipoprotein C3 (APOC3) is a multifunctional protein.Its concentration is positively correlated with triglyceride (TG) levels and is an independent risk factor for coronary heart disease (CAD) prediction and development.Recent studies showed that APOC3 could not only regulate triglyceride-rich lipoproteins (TRL) metabolism,but also regulated endothelial function,that is,it could induce endothelial dysfunction and disorders of lipid metabolism.Gradually,APOC3 induces atherosclerosis (AS),increases the risk of the occurrence of CAD and other related diseases.APOC3 polymorphisms are also closely related to related diseases.
3.Gated Myocardial Perfusion Imaging Quantitative Analysis Technique in Evaluation of Left Ventricular Remodeling and Its Effect on Cardiac Function After Myocardial Infarction
Jianfeng WANG ; Yuetao WANG ; Rong NIU ; Xiaoliang SHAO ; Yun ZHANG ; Hailong CHEN ; Yi CHU ; Peiqi LU
Chinese Journal of Medical Imaging 2014;(10):749-753
Purpose To investigate the clinical value of gated myocardial perfusion imaging (GMPI) quantitative analysis technique in evaluating left ventricular remodeling and its effects on left ventricular function in patients with myocardial infarction (MI). Materials and Methods Seventy-six cases of MI patients were retrospectively analyzed, including pure left anterior descending artery (LAD) disease in 21 cases , left circumlfex artery (LCX) or right coronary branch (RCA) disease in 23 patients and multivessel disease in 32 cases. Seventy-four healthy people were additionally selected as control group. GMPI was performed on all subjects. Reconstruction images were automatically analyzed by using cardiac software QGS 2009 to obtain left ventricular remodeling index, including diastolic sphericity index (SIED) and end-systolic sphericity index (SIES). Cardiac function parameters were also obtained, including left ventricular end-diastolic volume (EDV), end-systolic volume (ESV), left ventricular ejection fraction (LVEF), and peak iflling rate (PFR). Differences of the left ventricular remodeling index and cardiac function parameters between the MI group and the control group were compared to analyze the relationship between left ventricular remodeling after myocardial infarction and coronary artery lesions. Results SIED, SIES and EDV, ESV in MI group were signiifcantly higher than those in the normal group (P<0.01). The cardiac function parameters of LVEF and PFR were significantly lower than those of the normal group (P<0.01). SIED and SIES in the group of LAD lesions and multi-vessel disease were signiifcantly higher than those in the LCX/RCA lesion group (P<0.05). The left ventricular remodeling was occurred more often in LAD lesion group and multi-vessel disease group than in the LCX/RCA lesion group (χ2=6.502 and 10.166, P<0.05). There was no significant difference between the LAD lesions group and multi-vessel disease group (χ2=0.105, P>0.05). Linear regression analysis showed that LVEF and PFR in group of left ventricular remodeling was signiifcantly lower with the increase of SIED (F=43.231 and 15.642, P<0.01). SIED and SIES analysis resulted in high correlation for both intra-observer and inter-observer (r=0.881-0.926, P<0.01). Conclusion Left ventricular remodeling after myocardial infarction can be accurately evaluated by GMPI. Patients with myocardial infarction due to LAD or multi-vessel coronary artery diseases may have left ventricular remodeling easier and more severe. Left ventricular remodeling will seriously affect the myocardial contraction and diastolic function, resulting in the entire left ventricular dysfunction.
4.Effect of sodium houttuyfonate in enhancing imipenem's activity against Pseudomonas aeruginosa biofilms.
Hui-Juan CHENG ; Min YANG ; Chang-Zhong WANG ; Chang-Feng ZHANG ; Chun-Yun CHU
China Journal of Chinese Materia Medica 2014;39(2):296-299
OBJECTIVETo investigate the resistant effect of houttuyfonate sodium (SH) combined with imipenem (IMP) against Pseudomonas aeruginosa (Pa) biofilms.
METHODThe two-fold dilution method was used to examine the minimum inhibitory concentration (MIC) of the tested drug. The crystal violet staining was applied to detect the effect of the combination of 1/2MIC, 1MIC, 2MIC of SH, single IMP, 1/2MIC of SH and IMP of various concentrations on the clearance rate of adherent bacteria, growth of biofilms and alginate production. Fluorescein diacetate (FDA)-propidium iodide (PI) doubling staining assay was employed to observe the bacterial viability and morphological changes after membrane dispersion of each drug group.
RESULTSodium houttuyfonate could enhance the effect of IMP against pseudomonas aeruginosa biofilms. Particularly, the combination group with the concentration of 2MIC showed the highest effect, with P < 0.001 compared with the negative control group. The above results were proved by the bacterial viability and biofilm morphology under fluorescence microscope.
CONCLUSIONAfter being combined with imipenem, sodium houttuyfonate shows a higher effect against biofilms. It is expected that the combination of the two drugs could improve the clinical efficacy of associated infections.
Alkanes ; pharmacology ; Biofilms ; drug effects ; growth & development ; Drug Synergism ; Imipenem ; pharmacology ; Microbial Sensitivity Tests ; Microbial Viability ; drug effects ; Pseudomonas aeruginosa ; drug effects ; physiology ; Sulfites ; pharmacology
5.Study on Polymorphisms and Genes Expression Levels ofα-Adducin in Patients with Coronary Artery Disease
Yangdong ZHANG ; Jie CHEN ; Ruixue CHU ; Liying WANG ; Jie YUN ; Juan AN ; Liang FANG
Journal of Modern Laboratory Medicine 2016;31(3):59-61
Objective To investigate the association between single nucleotide polymorphisms (SNP)and expression levels ofα-adducin(ADD1)gene in coronary artery disease (CAD)patients.Methods Extracted DNA and RNA samples of peripher-al blood white cells from 114 CAD patients and 116 healthy individuals in Jan 2011 to Oct 2013 from the General Hospital of the PLA Rocket Force.SNPs of rs3775067 and rs1263359 mutations in the ADD1 gene were analyzed with allele-specific flu-orogenic oligonucleotide probes combining hybridization.The gene expression levels were analyzed with fluorescence labeled and capillary electrophoresis technology.Results The frequencies of the genotypes and alleles of the two SNPs in the ADD1 gene were not significantly different between the two groups (χ2=0.018~1.317,all P>0.05).The ADD1 gene expression levels of CAD group (0.226±0.284)were obviously higher than that of control group (0.153±0.144,P<0.05).The gene expression levels of TC genotype of rs3775067 were obviously higher in CAD group (0.250±0.319)than that of control group (0.154±0.156,P<0.05),but the levels of the other genotypes had no significant difference between the two groups (t=0.557~1.867,all P>0.05).Conclusion The elevated ADD1 gene expression level would be risk factor for CAD.The polymorphisms of rs3775067 and rs1263359 had no relevance with CAD susceptibility.
6.Correlation of HMGB1 expression with the synthesis and secretion of IFN-γin the pulmonary artery smooth muscle cells in rat models of chronic obstructive pulmonary disease
Changming WANG ; Ming JIANG ; Yunxue LIAO ; Shuyuan CHU ; Yun LIN ; Wuzhou LIN
Journal of Medical Postgraduates 2014;(12):1240-1244
[Abstract ] Objective Chronic obstructive pulmonary disease (COPD) is closely related to pulmonary hypertension .This study was to investigate the correlation of the expression of high mobility group protein B 1 ( HMGB1) with its synthesis and secretion of interferon-γ( IFN-γ) in the distal pulmonary arterial smooth muscle cells ( PASMCs ) of COPD rats and its clinical significance . Methods We established COPD models in rats , primarily cultured and identified PASMCs , and detected the synthesis and secretion of cytokine in the PASMCs induced by cigarette smoke extract (CSE) and/or lipopolysaccharide (LPS).The PASMCs in the control, CSE, LPS, and CSE+LPS groups were cultured with anti-HMGB1 antibodies at 0.2 mL 1∶1000.At 12, 24, 48 and 72 hours of inter-vention, the expression of HMGB1 in the PASMCs was detected by Western blot and the concentrations of HMGB 1 and IFN-γin the cell culture supernatant were measured by ELISA , followed by a correlation analysis . Results Light microscopy manifested a peak -valley growth pattern or fusiform shape of the cells , which were identified as PASMCs by α-actin immunohistochemistry and immuno-fluorescence .Western blot and ELISA showed statistically significant differences in the expression of HMGB 1 and concentrations of cell supernatant HMGB1 and IFN-γat 12 hours between any two of the four groups (P<0.05).The HMGB1 expression level was positive-ly correlated with the concentration of IFN-γ(r=0.91), obviously decreased after 12 hours of intervention with anti-HMGB1 antibod-ies as compared with the corresponding experimental groups ( P <0.05).Western blot and ELISA showed no significant differences within the same group at 12, 24, 48 and 72 hours (P>0.05). Conclusion The expression level of HMGB1 was positively correla-ted with the synthesis and secretion of IFN-γin the distal PASMCs of the COPD model rats , and anti-HMGB1 antibodies provide a new in-tervention target for the clinical treatment of COPD and inhibition of its systemic inflammatory response .
7.Endoscopic surgery for thalamic hemorrhage breaking into ventricles: Comparison of endoscopic surgery, minimally invasive hematoma puncture, and external ventricular drainage
Fu CHU-HUA ; Wang NING ; Chen HUA-YUN ; Chen QIAN-XUE
Chinese Journal of Traumatology 2019;22(6):333-339
Purpose:Thalamic hemorrhage breaking into ventricles (THBIV) is a devastating disease with high morbidity and mortality rates.Endoscopic surgery (ES) may improve outcomes,although there is no consensus on its superiority.We investigated the efficacy and safety of ES and compared the outcomes of different management strategies by ES,hematoma puncture and drainage (HPD),and external ventricular drainage (EVD) in patients with THBIV.Methods:We retrospectively analyzed patients with THBIV treated by ES,HPD,or EVD at our hospital from June 2015 to June 2018.Patients were categorized into anteromedial and posterolateral groups based on THBIV location,and then the two groups were further divided into ES,HPD,and EVD subgroups.Individualized surgical approach was adopted according to the location of the hematoma in the ES subgroups.Patient characteristics and surgical outcomes were investigated.Results:We analyzed 211 consecutive patients.There were no significant differences in clinical characteristics or incidence of perioperative procedure-related complications (postoperative rebleeding and intracranial infection) in either anteromedial or posterolateral groups.Compared with other therapeutic methods,the ES subgroups had the highest hematoma evacuation rate,shortest drainage time,and lowest incidence of chronic ventricular dilatation (all p < 0.05).Among the three anteromedial subgroups,ES subgroup had the best clinical outcomes which was assessed by the modified Rankin Scale,followed by HPD and EVD subgroups (p < 0.01);while in the posterolateral subgroups,clinical outcomes in the ES and HPD subgroups were similar and better than that in the EVD subgroup (p =0.037).Conclusion:Individualized surgical ES approach for removal of thalamic and ventricular hematomas is a minimally invasive,safe,and effective strategy for the treatment of THBIV with a thalamic hematoma volume of 10-30 mL.
8.A retrospective analysis of 97 drunk driving cases.
Xiang-Wei CHENG ; Yun CHU ; Xiong-Xin ZONG ; Zi-Wei WANG ; Jian-Xin CHU
Journal of Forensic Medicine 2013;29(2):122-124
OBJECTIVE:
Based on a retrospective analysis of the drunk driving cases, to explore the drunk drivers' personnel composition, occurrence time and psychology.
METHODS:
As a result of punishment of the drunk driving by criminal law for one year from May 1st, 2011 to April 30th, 2012, 91 drunk driving cases were statistically analyzed the easy-happening time of drunk driving, the drunk drivers' age, gender, occupational characteristics, domicile and psychological factors.
RESULTS:
In 97 drunk driving cases, 26-40 years old, non-local domiciled and non-professional male drivers were prone to drunk driving at night from 22:00 to 5:00.
CONCLUSION
The behavior of drunk driving is relevant to time, age, genders and occupation. The psychological characteristics of most drivers are fluky, making-life-easy, competitive and peacockish.
Accidents, Traffic/statistics & numerical data*
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Adolescent
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Adult
;
Age Distribution
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Alcohol Drinking
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Alcoholic Intoxication/psychology*
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Automobile Driving/psychology*
;
China/epidemiology*
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Female
;
Forensic Medicine
;
Humans
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Male
;
Middle Aged
;
Risk Factors
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Sex Distribution
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Social Behavior
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Time Factors
;
Young Adult
9.Treatment of 336 cases of chest trauma.
Jing ZHANG ; Xiang-Yang CHU ; Yi LIU ; Yun-Xi WANG
Chinese Journal of Traumatology 2012;15(3):180-182
OBJECTIVETo summarize the clinical features, diagnosis and treatment of chest trauma.
METHODSA retrospective analysis was conducted among 336 cases of chest trauma admitted to our hospital from January 2009 to May 2011.
RESULTSOut of all cases, 325 were cured, accounting for 96.7%; 11 died, accounting for 3.3%. Among the dead cases, one died of hemorrhagic shock, three of acute respiratory distress syndrome, three of multiple organ failure, and four of severe multiple traumas.
CONCLUSIONS(1) For patients with severe chest trauma, early emergency treatment is crucial to save life. (2) Open thoracic surgery is needed for acute cardiac tamponade, intrapulmonary vascular injuries, progressive intrathoracic bleeding, lung laceration, tracheal breakage, and diaphragmatic injury. In addition, operative timing and method should be well chosen. (3) Pulmonary contusion is one of common complications in chest trauma, for which the combination of strong anti-infection therapy and mechanical ventilation is an effective treatment strategy.
Humans ; Lung ; Lung Injury ; Multiple Trauma ; surgery ; Retrospective Studies ; Thoracic Injuries ; surgery
10.Preliminary clinical application of anterior pedicle screw fixation of lower cervical spine
Yuanzheng WANG ; Yang LIU ; Fu CHEN ; Yun CHENG ; Liang CHEN ; Zhengjian YAN ; Lei CHU ; Zhengyong KE ; Zhongliang DENG
Chinese Journal of Trauma 2012;28(8):697-702
ObjectiveTo discuss the feasibility and safety of anterior pedicle screw (APS) fixation in treatment of lower cervical spine injuries.MethodsA total of 10 patients with lower cervical spine injuries were treated with APS fixation.All the patients received preoperative cervical CT scans,and then three-dimensional model was reconstructed by using Mimics software to measure the screw placement parameters (insertion point,screw placement angle,screw length and diameter).All APS fixations were performed through anterior cervical approach,and then centrums antetheca and bilateral outer edges were exposed to distinguish the vertebral end plates.Screw insertion was strictly operated under the fluoroscopic assistance and preoperative screw placement parameters.The postoperative efficacy of APS fixation was evaluated by radiologist and other orthopedist via anteroposterior and lateral radiation,CT scan,three-dimensional model reconstruction and MRI.A follow-up was carried out at 1,3,6 and 12 months after operation.ResultsExcept for one screw for C4 and one for C7,another 24 crews for C3-C7 were successfully inserted.Postoperative CT scan demonstrated four screws breaking the outer vertebral wall.Except for one patient suddenly died from acute myocardial infarction one week after operation,the other nine patients received follow-up.Of three trauma patients,one patient at Grade A did not get improvement but with no aggravation and two achieved improvement for 2-3 grades according to Frankel grade.Among six non-trauma patients,spinal function score by JOA was averagely elevated to 13.4 points,with improvement rate of 60.7% according to Hirabayashi method.There were no serious complications except for two patients of dysphagia among the patients who were followed up. Conclusions APS fixation is feasible for lower cervical spine injuries.The keys to successful screw insertion are preoperative measurement of individualized screw insertion parameters and appropriate application of intraoperative fluoroscope technique.