Objective To evaluate the efficacy of isolated ultrafiltration (IUF) for patients with cardiac insufficiency after acut emyocardial infarction (AMI).Methods The acut emyocardial infarction patients admitted from August 2010 to August 2014 were recruited for study.After primary percutaneous coronary intervention (PCI),102 patients presented cardiac insufficiency taking the form of hypotension and acute left heart failure.All heart failure patients dealt with routine medications at first,and were then randomly (random number) divided into two groups,group A was routine medication group and group B was isolated ultrafiltration after routine medication group.Data recorded at different intervals in the same group were analyzed by ANOVA.Data recorded from two groups at the same intervals were analyzed by t test.Data of mortality in the two groups were analyzed by x2 test.P value less than 0.05 was considered statistically significant.Results Of them,51 patients were treated with routine medication resulting in gradual improvement of cardiac function,but the improvement was slower compared with the isolated ultrafiltration group.Other 51 patients were treated with isolated ultrafiltration,and isolated ultrafiltration was discontinued in 2 patients owing to progressive thrombocytopenia and in another one patient owing to systolic blood pressure below 90 mmHg,with clinical manifestations of organ hypoperfusion,poor peripheral circulation,cool clammy skin and oliguria.In the rest of 48 patients in the isolated ultrafiltration group,vital signs were stable,and heart failure symptoms and serum electrolytes improved significantly (P ＜0.05).After one week of using isolated ultrafiltration,left ventricular ejection fraction (LVEF) also improved (P ＜ 0.05).The differences in mortality within one month,the mean ICU stay,the mean hospitalized stay,and the rate of recurrent heart failure were significant between the two groups (P ＜ 0.05)Conclusions The isolated ultrafiltration is a relatively safe and effective strategy for patients with cardiac insufficiency and hypotension after acut emyocardial infarction.

Objective To study the protective role of continuous veno-venous hemofiltration (CVVH) in cardiac insufficiency refractory to diuretic therapy after acute myocardial infarction.Methods A total of 104 acute myocardial infarction patients admitted from march 2012 to march 2016 were recruited.According to their wishes,the patients were divided into two groups,continuous veno-venous hemofiltration combined with routine therapy as experimental group (n =52) and conventional treatment as control group (n =52).Mortality rate within one month,the mean length of ICU stay,the mean length of hospital stay,ventilator usage and urine output volume were documented.Then the difference in BW between pre-and post-treatment was determined for evaluation of fluid retention,and blood plasma C-reactive protein (ΔCRP),interleukin 6 (ΔIL-6),interleukin 8 (ΔIL-8),tumor necrosis factor-α (ΔTNF-α) and left ventricular ejection fraction (ΔLVEF) were measured and calculated.A multiple linear regression model to predict ΔLVEF was established.Data recorded at different intervals in the same group were analyzed by ANOVA.Data of the monitoring biomarkers,the mean length of ICU stay,the mean length of hospital stay of two groups were recorded at the same given intervals were analyzed by t test.Data of mortality rate within one month,drugs and ventilator usage in two groups were analyzed by x2 test.P value less than 0.05 was considered statistically significant.Results There were significant differences in mortality rate within one month,the mean length of ICU stay,the mean length of hospital stay,and the duration of ventilator usage between the two groups (P ＜ 0.05).Total volume of fluid output (urine and ultrafiltration volume) was higher in experiment group than that in control group in 48 hours after the treatment (P ＜ 0.01).The levels of CRP,IL-6,IL-8 and TNF-α decreased significantly (P ＜ 0.05) in experiment group after treatment but not in control group (P ＞ 0.05) as compared with those before the treatment.BW was decreased and LVEF was increased in both groups after treatment (P ＜ 0.05) compared with those before the treatment.Levels of CRP,IL-6,IL-8 and TNF-α were lower in experiment group than those in control group after treatment (P ＜ 0.05).BW was meagerly lower and LVEF was meagerly higher in experiment group than those in control group without statistical significance (P ＞ 0.05).However,the degrees of ΔLVEF andΔBW were greater in experiment group than those in control group (P ＜ 0.01).In experiment group,significantly positive correlations were found among ΔBW,ΔCRP,ΔIL-6,ΔIL-8,ΔTNF-α and ΔLVEF (P ＜0.05).Multiple linear regression analyses showed that ΔBW and ΔTNF-α were the independent factors forΔLVEF and ΔBW was the main independent factor for ΔLVEF in control group.ΔLVEF was positively correlated with ΔBW (P＜0.01) but had no correlation with ΔCRP,ΔIL-6,ΔIL-8 and ΔTNF-α (P ＞0.05).Multiple 1inear regression analyses showed that only ΔBW was the independent factor for ΔLVEF.Conclusion CVVH plays protective role in acute myocardial infarction patients with consequent cardiac insufficiency refractory to diuretic therapy by clearance of inflammatory cytokines and removal of retained fluid,and the removal of retained fluid is the most import mechanism to protect heart function.

Objective To construct the eukaryotic expression vector coding HCV gene E2 fused with His-Tag, and to express fused protein in CHO cells for investigating the function of HCV envelope protein E2. Methods The gene encoding HCV envelope protein E2 was amplified from pBRTM/HCV1-3011, a plasmid containing the cDNA of HCV's ORF, by polymerase chain reaction (PCR) method and cloned into the vector pET28(a) containing His-Tag to obtain the fused HCV envelope protein E2 gene fused with His-Tag. The fused gene was cloned into pcDNA3.1 to construct the recombinant plasmid pcDNA3.1-His-E2, which will express the E2 protein, fused with His tag. This recombinant plasmid was transfected into CHO cells by Lipofactamine 2000 reagent. The fused protein was identified by indirect immunofluorescence (IIF) and Western-blot (WB) methods. Result The positive results were obtained when the fused protein of HCV E2 with His-Tag were identified by IIF and WB methods. Conclusion The eukaryotic expression vector pcDNA3.1-His-E2 was constructed successfully and the fused proteins were expressed in cells.

Objective: To explore the role of calcium/calmodulin-dependent protein kinase-II δ (CaMK-II δ) in doxorubicin (DOX) induced cardio-toxicity in experimental rats.
Methods:①The rat’s cardiomyocytes were treated by DOX and the cell proliferation, protein expression and activity of CaMK-II δ were examined.②CaMK-II δ gene was knocked out by CRISPR method, the changes of DOX induced cell apoptosis and NF-κb activity and miR-146a expression were detected.
Results: DOX could inhibit cardiomyocyte proliferation, the protein expression level of CaMK-II δ was similar and the activity was increased. CRISPR method may effectively knock out CaMK-II δ gene. Compared with normal cells, the cells from CaMK-II δ knocked out rats had decreased sensitivity to DOX induction, suppressed NF-κb activation and miR-146a up-regulation.
Conclusion: CaMK-II δ participated in DOX induced cardio-toxicity in experimental rats and NF-κb and miR-146a were involved in this process.

Objective:To compare the effectiveness and safety of Dengzhanhuasu and Danshen Injection in the treatment of the patients with angina pectoris of coronary heart disease with Meta-analysis, and to provide basis for their application in clinic.Methods:Computer search was performed using Cochrane Central Register of Controlled Trial,Ovid-medline,EMBASE,PubMed,CNKI,Wanfang,VIP and CBM,and the literatures about the effectiveness and safety of Dengzhanhuasu and Dansheng Injection in the treatment of the patients with angina pectonis of coronary heart disease were obtained.According to the principle of selection and elimination, the literatures were selected, and the qualities of literatures were evaluated.The related data were extracted from the literatures.RevMan 5.3 software was used to extract the data for Meta-analysis.Results:A total of 167 literatures were retrieved, and 8 randomlized-controlled studies were selected according to the selection criteria.The evaluation results of the effectiveness of angina pectoris according to symptom showed that χ2=2.62,df=7,P=0.92,Z=6.85 (P<0.000 01), 95%CI:2.73-6.10. The evaluation of the effectiveness of angina pectoris according to electrocardiogram,χ2=6.37,df=7,P=0.50,Z=6.37(P=0.000 01),95%CI:1.94-3.49.The results of Meta-analysis showed that there were significant differences in the relief of symptoms and improvement of the electrocardiogram efficacy between Dengzhanhuasu and Danshen Injection in the treatment of angina pectoris of coronary heart disease (P<0.05).Conclusion:Dengzhanhuasu has better effectiveness in the treatment of the patients with unstable angina than Dansheng Injection and they have the same safety.

Objective To establish a multi-index quality evaluation method of Atracylodis Macrocephalae Rhizoma based on principal component analysis (PCA) model.Methods The contents of atractylenolideⅠ and atractylenolideⅢ were determined by HPLC; atractylodes macrocephalaon polysaccharide was determined by phenol-sulfuric acid method; ethanol soluble extractum was determined by hot soak in general rule of Chinese Pharmacopoeia (2015 Edition); PCA was used to establish a multi-index quality evaluation model. Results AtractylenolideⅠ and atractylenolideⅢ showed good linear correlations (r=0.999 9), and the average recoveries were 100.9% and 102.1%, respectively. PCA showed that the Atracylodis Macrocephalae Rhizoma from Panan County, Yuqian Town, Jinyun County, Xinchang County of Zhejiang Province had the best quality, from Bozhou City and Fuyang City of Anhui Province had good quality.Conclusion The established multi-index quality evaluation method based on PCA model can be applied to objectively evaluate the quality of Atracylodis Macrocephalae Rhizoma from different producing areas.

Objective To investigate the difference and the correlation of the vowel's phonation threshold pressure and nasalance in normal subjects .Methods The Aeroview (GLOTTAL Enterprises)with the materials /pa/,/pi/,/pu/ was used to obtain phonation threshold pressure values and The NasalviewTM (Tiger Electronics Inc .,Seattle ,Shanghai) with the materials /a/,/i/,/u/was used to obtain nasalance values .A total of 30 subjects (15 males ,15 females ,and aged 19~30) years old received the tests .The results of the vowel's phonation threshold pressure and nasalance gender score difference were compared .Results The PTP gender scores of /a/,/i/,/u/in maleswere4.53±0.70cm,5.21±0.80cm,5.87±1.45cm,andinfemaleswere4.09±0.30cm,4.47±0.30cm, and 4 .77 ± 0 .32 cm ,respectively .There were significant differences between males and females in PTP values (P<0 .05) .The PTP gender score differences showed that males were greater than that of females .There were signifi‐cant differences in different vowels (P<0 .05) .The nasalance gender scores of /a/,/i/,/u/in males were 30 .2 ± 5 . 75% ,38 .8 ± 8 .54% ,26 .5 ± 6 .03% ,and in females w ere32 .4 ± 7 .14% ,40 .5 ± 11 .8% ,and 30 .1 ± 4 .83% ,respec‐tively .There were no significant differences between males and females in nasalance values (P> 0 .05) .The na‐salance gender score differences showed that females were greater than males .There were significant differences in different vowels(P<0 .05) .This study found a weak correlation between PTP and nasalance .Conclusion The relationship between oral pressure and nasal flow cannot be accurately measured by measuring PTP ,and /pa/is a relatively suit‐able material for testing oral pressure .

Objective To investigate the genetic faction influence on asthmatic patients in Chongqing, China. Methods Case-control study was employed for genetic epidemiological survey. Results The heritability of asthma in Chongqing was (80.56?5.68)% in first-degree relatives of asthma probands. The segregation ratio was 0.18. The relative risk of first-degree relatives and siblings of asthma probands were 7.38 and 4.47, respectively. Conclusion The inheritance pattern of asthma in Chongqing coincided with polygenic inheritance pattern. Genetic factor is a major risk factor of asthma. The relative risk in siblings is high. We can localize the susceptible gene of asthma with positional cloning.

Aim To study the role and mechanism of opioid receptor on IL-1?-induced fever.Methods Rats were dealed with intracerebreventricular administration of naloxone and/or IL-1?.Changes in body temperature were measured.The content of cAMP and HSP70 expression in hypothalamus were detected.Results Naloxone can limit IL-1?-induced fever and decrease the content of cAMP and HSP70 expression in hypothalamus(P

Objective:To explore the expression of IL-22 in the patients with rheumatoid arthritis,and to define the clinical sig-nificance of IL-22 cells for RA. Methods: A total of 50 RA patients, 15 OA patients and 15 healthy controls were enrolled. The proportion of Th22 cells in peripheral blood and synovial fluid( SF) of RA patients was detected by flow cytometry;the levels of IL-22 in serum and synovial fluid of RA patients were detected by ELISA. The clinical parameters of disease activity were assessed including ESR,RF,CRP,DAS28,anti CCP and the degree of bone erosions determined by X-rays. Pearson correlation analysis,t test and Kruskal-Wallis H test were used for statistical analysis. Results:The proportion of Th22 cells in RA patients was higher than that of OA patients (t=2. 290 ,P=0. 021) and healthy controls(t=2. 524,P=0. 015). IL-22 levels in RA patients were higher than that of OA patients (t=2. 560,P=0. 014) and healthy controls(t=2. 768,P=0. 009). IL-22 in the RF positive group were higher than that of RF negative group(t=2. 322,P=0. 035). IL-22 in the anti-CCP antibody positive group were higher than that of anti-CCP antibody negative group (t=2. 504,P=0. 015). The levels of IL-22 were correlated positively with ESR,RF,DAS28(r=0. 312,0. 314,0. 332,P<0. 05). The levels of IL-22 were increased gradually along with the aggravation of bone erosions. There were statistical significant difference among different X-ray stagings(H=9. 14,χ20.05(3)=7. 81,H> χ20.05(3),P<0. 05). Serum IL-22 levels in the RA patients with joint effusion were higher than that of without(t=2. 587,P=0. 012). The levels of IL-22 in SF were higher than that in serum(t=2. 668,P=0. 011),and had no correlation with the proportion of Th22 cells in SF. Conclusion: The expression of IL-22 in serum and joint effusion of RA patients increase. The level of IL-22 may be useful marker for assessment of disease activity and finding of bone erosions. Therapeutic targeting of IL-22 may be valuable for the intervention of RA.