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.

Objective To explore and evaluate the method and feasibility of applying the contrast agent fluorescein sodium to enhance the efficiency of Cerenkov radiation energy transfer (CRET).Methods Fluorescein sodium was employed as the energy transfer receptor of 18 F-FDG Cerenkov radiation (CR) to achieve stronger signal.18F-FDG was mixed with fluorescein sodium of different concentrations:0.05,0.10,0.20,1.00,2.00,4.00,8.00 mmol/L.Optical signal strength was quantified by ROI analysis.The influence of fluorescein sodium concentration on CRET efficiency and the optimal concentration that could achieve most optical signal augmentation were studied.The optimal concentration of fluorescein sodium was mixed with 1.85-11.10 MBq 18F-FDG for CLI.Linear regression was performed to investigate the range of 18F-FDG dose with most optical signal augmentation and the influence of 18F-FDG dose on CRET efficiency.A tumorbearing nude mouse was imaged after intravenous injection of 18F-FDG and then imaged again after injection of fluorescein sodium post 18 F-FDG injection.These two sets of images were compared to evaluate the CRET efficiency in vivo.Results In vitro study showed that 1.00 mmol/L fluorescein sodium was the optimal concentration for 18F-FDG dose ranging from 1.85 MBq to 11.10 MBq.The signal from 18F-FDG mixed with fluorescein sodium was 3.7 times stronger than that from 18F-FDG alone.Experiment in vivo suggested that 18F-FDG mixed with fluorescein sodium could effectively enhance the signal strength by CRET.Conclusion 18F-FDG mixed with fluorescein sodium may improve the efficiency of CRET,therefore,can enhance the signal strength,reduce the exposure time and achieve better signal to noise ratio.

Objective To investigate the clinical effect of type A botulinum toxin and nipple retractor in correcting severe inverted nipples.Methods All the patients with bilateral severe inverted nipples that sought consulting in the Plastic and Reconstructive Surgery Center of Peking Union Medical College Hospital were included in this study and the patients were randomized into different treatment group with nipple retractor only or BTX-A (Lanzhou,China) combined with nipple retractor.In the combined therapy group,50 u BTX-A was injected into the bottom of each nipple.2 weeks later,nipple retractor was placed and kept wearing for 6 months.For the retractor only group,no BTX-A was used.All the patients were followed up at 1 month,3 months and 6 months after the operation.Nipple projection was measured according to the profile view of pre-and post-operation.Effectiveness and complication rate were compared between the two groups.Results 20 patients were included in this study.Average nipple projection in the combined therapy group was (1.12±0.13) cm,(0.95± 0.10) cm and (0.73±0.11) cm (3 months,6 months and 12 months post-operation,respectively),which had a significant difference from that of the retractor group [(0.81±0.10) cm,(0.72±0.12) cm and (0.53±0.10) cm].Total complication rate of combined group was also lower than that of retractor group.The complications of the combined therapy group included hypopigmentation (1 case),without skin ulcer or wire dislocation.However in the retractor group,complications included skin ulcer (2 cases),hypopigmentation (1 case) and dislocation (1 case).No severe complications such as nipple necrosis happened in both groups.Conclusions BTX-A combined with nipple retractor is an effective method in correcting severe inverted nipple with low complication rate.

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.