Objective: To study the serum laminin (LN) and fibronectin (FN) changes in acute coronary syndromes (ACS), and explore the role of them in assessing the severity of ACS. Methods: This study included 46 ACS patients [25 with acute myocardial infarction (AMI) and 21 with unstable angina (UA)], 51 stable angina (SA) patients and 47 people without CHD as controls. Serum levels of LN, FN, fibrinogen and blood fat were assessed. Coronary angiography were performed on 49 of them. Results: The serum concentration of LN was lower in ACS patients [(85.20±27.57) ng/mL], higher in SA patients [(116.80±28.80) ng/mL] as compared to that in the control group [(100.06±29.96) ng/mL], with significant difference among the groups (P<0.05). No difference was found in FN among the three groups. However, the subgroup analysis in the group with ACS showed that the serum concentration of FN was significantly higher in UA patients [(229.60±121.39) μ;g/mL], and lower in AMI patients [(108.31±47.12) μg/mL]. The serum LN and FN concentration could respectively enter the logistic regression equations of ACS patients and US patients. Neither LN nor FN concentration was correlated with narrowing of coronary artery of angiography. Conclusion: Serum LN and FN level may be a useful indicator for stability of atherosclerosis plaque in coronary arterial disease patients, but could not predict the extent of narrowing in coronary angiography.

Objective: To study the serum laminin (LN) and fibronectin (FN) changes in acute coronary syndromes (ACS), and explore the role of them in assessing the severity of ACS. Methods: This study included 46 ACS patients [25 with acute myocardial infarction (AMI) and 21 with unstable angina (UA)], 51 stable angina (SA) patients and 47 people without CHD as controls. Serum levels of LN, FN, fibrinogen and blood fat were assessed. Coronary angiography were performed on 49 of them. Results: The serum concentration of LN was lower in ACS patients [(85.20±27.57) ng/mL], higher in SA patients [(116.80±28.80) ng/mL] as compared to that in the control group [(100.06±29.96) ng/mL], with significant difference among the groups (P<0.05). No difference was found in FN among the three groups. However, the subgroup analysis in the group with ACS showed that the serum concentration of FN was significantly higher in UA patients [(229.60±121.39) μ;g/mL], and lower in AMI patients [(108.31±47.12) μg/mL]. The serum LN and FN concentration could respectively enter the logistic regression equations of ACS patients and US patients. Neither LN nor FN concentration was correlated with narrowing of coronary artery of angiography. Conclusion: Serum LN and FN level may be a useful indicator for stability of atherosclerosis plaque in coronary arterial disease patients, but could not predict the extent of narrowing in coronary angiography.

The spinal dural arteriovenous fistula is a common vascular malformation with unclear etiology and unspecific clinical presentations.An early diagnosis is important for the treatment,therefore the authors reviewed and comprehanded the pathology,diagnosis and treatment of this AVM.

Objective To study the serum lipid(TC,TG,LDL-C) and the role of typeⅠcollagen,NF-?B,typeⅠcollagen mRNA and NF-?B mRNA levels and their mechanisms in the occurrence and progress of atherosclerosis in order to provide theoretical gist for its prevention.Methods Blood vessel wall pathological and the serum lipid changes,the expressions of typeⅠcollagen,NF-?B,typeⅠcollagen mRNA and NF-?B mRNA levels were observed in dietary induced atherosclerosis rabbit model by morphology study,immunohistochemistry,in situ hybridization technique and color image analyzer(CMAIS).Results The model of AS was established successfully after rabbits were fed with cholesterol,who developed the fatty streak lesion in the aortic intra-wall.In the rabbit model,TC and LDL were respectively increased 43 times and 37 times and there were no difference in TG and body weight.Type I collagen,NF-?B,type I collagen mRNA and NF-?B mRNA were 0.27?0.02,0.19?(0.01) and 0.30?0.03,0.35?0.03,respectively,which were higher than those of control group(0.08?0.01,0.09?0.01 and 0.11?0.01,0.10?0.09,respectively)(P

Objective To investigate the relationship between the non-homonymy single nucleotide polymorphism(SNP)of C19170G,C30799G in the coding area of class Ⅱ transaetivator(CII TA)and the different clinical phenotypes of chronic hepatitis B virus(HBV)infection.Methods Six hundred and twenty-seven patients with chronic HBV infection and 101 healthy blood donors were enrolled in this study.Genotyping of C19170G,C30799G in C Ⅱ TA gene coding region were done by sequence-specific primer polymerase chain reaction(PCR-SSP).Hardy-Weinberg balance of the genotypes was analyzed using chi-square test.Differences between two sets were tested by contingency table chi-square test and unconditional Logistic regression was performed. Results The frequencies of G allele and GG+GC genetypes at 19170 site were significantly higher in patients with liver cirrhosis than those with non-progressive liver diseases(X2=7.128,P=0.008;X2=6.404,P=0.011,respectively).There were significantly differences of the allele frequencies between patients with liver cirrhosis and non-progressive liver diseases(OR:0.742,95%CI:0.552～0.998,P=0.048),and the main differences were observed in G dominant model(OR:0.581,95% CI:0.353～0.954,P=0.032).The frequencies of C allele and CC genotype at 30799 site were significantly higher in patients with hepatocellular carcinoma than those in patients with liver cirrhosis(X2=4.861,P=0.027;X2=4.993,P=0.025).There were significant differences of the genotype frequencies at 30799 site between patients with liver cirrhosis and hepatocellular carcinoma(OR:0.557,95% CI:0.334～0.930,P=0.025),and the differences were mainly observed in C recessive model(OR:0.491,95% CI:0.269～0.898,P=0.021).Conclusions The polymorphisms at 19170 site are associated with liver cirrhosis in chronic HBV infection,and the G allele carriers are prone to progress into liver cirrhosis.The polymorphisms at 30799 site are associated with hepatocellular carcinoma in chronic HBV infection,and CC genotype carriers are prone to progress into hepatocellular carcinoma.

Objective To study the effects and mechanism of different administrations of atorvastatin on myocardial ischemia/reperfusion (MI/R) in rats.Methods A total of 160 male SD rats were randomly divided into five groups:sham group,MI/R group,atorvastatin of conventional dose (MI/R + N) group,atorvastatin of preoperative signal loading dose (MI/R+SL) group,and atorvastatin of preoperative continuous loading dose (MI/ R+ML) group.MI/R model was established in the rats.Myocardial infarction size was detected by Evans blue/ TTC staining.The activity of ATPase of cardiac muscle and the levels of serum IL-6 and TNF-α were detected by ELISA.The level of LVEF％ was detected by small animal ultrasound.Results Compared with MI/R+N group,MI/R+ SL and MI/R+ ML groups had significantly smaller myocardial infarction size (P＜0.05),higher activity of ATPase (P＜0.05),lower levels of serum IL-6 andTNF-α (P＜0.05),and more advancedLVEF％ (P＜0.05).However,MI/R+SL group and MI/R+ML group did not differ significantly in the above-mentioned parameters.Conclusion Atorvastatin of loading dose might alleviate MI/R injury by improving ATP metabolism of cardiac muscle and reducing abnormal expressions of inflammation factors.Meanwhile,the administration of preoperative continuous loading dose and preoperative signal loading dose of atorvastatin may not differ in protecting against MI/R injury.

Objective To study the serum iaminin (LN) and fibronectin (FN) changes in acute coronary syndromes (ACS), and explore the role of them in assessing the severity of ACS. Methods This study included 46 ACS patients [25 with acute myocardial infarction (AMI) and 21 with unstable angina (UA)], 51 stable angina (SA) patients and 47 people without CHD as controls. Serum levels of LN, FN, fibrinogen and blood fat were assessed. Coronary angiography were performed on 49 of them. Results The serum concentration of LN was lower in ACS patients [(85.20±27. 57)ng/mL], higher in SA patients [(116. 80 ± 28. 80)ng/mL] as compared to that in the control group [(100.06±29.96)ng/mL], with significant difference among the groups (P<0.05). No difference was found in FN among the three groups. However, the subgroup analysis in the group with ACS showed that the serum concentration of FN was significantly higher in UA patients [(229.60±121.39)μg/mL ], and lower in AMI patients [(108.31±47.12) μg/mL ]. The serum LN and FN concentration could respectively enter the logistic regression equations of ACS patients and US patients. Neither LN nor FN concentration was correlated with narrowing of coronary artery of angiography. Conclusion Serum LN and FN level may be a useful indicator for stability of atherosclerosis plaque in coronary arterial disease patients, but could not predict the extent of narrowing in coronary angiography.

ObjectiveTo examine the proliferative effect of synthetic C Ⅱ260-272 peptide on T cells of collagen-induced arthritis(CIA) rat,and to explore the role of C Ⅱ 260-272 in RA.MethodsThe rat model of collagen-induced arthritis(CIA) was established.The T lymphocytes were isolated and incubated with C Ⅱ 260-272 peptide.Proliferation of T cells was determined by cell counting kit-8.The data were analyzed with SPSS 17.0.The Mann-Whitney U test was used for proliferation levels comparison between the two groups,and the relationship of cell proliferation with other indicators was analyzed with Spearman's correlation.Antibody levels between the two groups were compared using t test.ResultsThree weeks after the first immunization,T cell response to C Ⅱ 260-272 in the CIA groups [0.963 (0.332-1.628)] was more significant than in controls[0.332 (0.331-0.357)](P＜0.05),and the response was associated with disease course(r=0.624,P＜0.01 ).Strong correlation between T cell proliferation and the antibodies,including antibC Ⅱ antibody and anti-Cit-bC Ⅱ antibody was also observed(P＜0.01 ).Two weeks later,the levels of anti-C Ⅱ peptide antibody in each CIA group were significantly higher than those in the controls(P＜0.01).The antibodies strongly correlated with pannus formation (P＜0.01,P＜0.05).ConclusionThe proliferative response of T cell to C Ⅱ 260-272 peptide can be found in the early stage of CIA rat,and the anti-C Ⅱ peptide antibody could be detected in the serum,which suggeststhat the C Ⅱ peptide may play an important role in activating T/B lymphocytes and causing immune reaction when CIA is induced by C Ⅱ.

Abstract: Total RNA was isolated from Siraitia grosvenorii fruit by the method of modified Trizol, according to S. grosvenorii fruit characteristics of rich phenols, polysaccharide, oil and proteins. The OD260/280, OD260/230, RNA integrity (RIN) and yield of the total RNA with this method were 2.01, 2.02, 9.50 and 260 mirog.g-1, respectively. The open reading frame (ORF) of dehydroascorbate reductase (DHAR), named as SgDHAR, was cloned by rapid amplification of cDNA ends (RACE) and RT-PCR method from S. grosvenorii. The GenBank accession number for this gene is KC907731. The SgDHAR gene contains a full-length cDNA of 1,252 bp including ORF of 819 bp and encodes a predicted protein of 272 amino acids. The molecular mass is 30.217 7 kD and the isoelectric point is 8.76. Homology comparison showed that it shared 87% nucleotide sequence homology with Cucumis sativus. Expression patterns using qRT-PCR analysis showed that SgDHAR was mainly expressed in fruit and stem, followed by flower, and was lowest in root, while the expression level was 6.83 times in triploid. T than that in diploid. Therefore, SgDHAR gene may be involved in abortion of triploid seedless S. grosvenorii.

BACKGROUND:Negative pressure wound therapy has been widely recognized, the currently published papers are limited in academic value and lack of scientific, objective, qualified index to confirm the therapy effectiveness. OBJECTIVE:To systemical y evaluate the clinical effect of negative pressure wound therapy, provide more evidence for its clinical application, and guide clinical research.
METHODS:Fifteen articles were screened out of peer-reviewed publications (Cochran library, Embase, PubMed-Medline and Chinese BioMedical Literature Database). Scientific data were col ected and evaluated by two researchers. The data were statistical y analyzed with RevMan software.
RESULTS AND CONCLUSION:Only 15 random-control ed trials were final y preserved, including 10 as B-grade moderate bias risk and focused on the effect of negative pressure wound therapy on chronic wounds, and 5 as C-grade high bias risk and focused on the effect of negative pressure wound therapy on acute wounds. There were significant differences in the main outcome measures between negative pressure wound therapy and conventional wound therapy. As for chronic wound patients, no significant difference was observed in the operation-preparing period, reducing wound area, promoting wound granulation, and amputation rate between two therapies. As for acute wound patients, the differences were significant in the operation-preparing period, promoting wound granulation, wound infection rate, and cost materials between two therapies. However, no difference was significant in the healing of wound and hospitalization time. Our findings indicate that, negative pressure wound therapy is an effective means for both acute and chronic wounds, it can shorten operation-preparing period, promote wound granulation, and reduce amputation rate and infection rate, thus providing evidence for clinical application. The wel-designed study is needed to develop high-quality random control ed trails.