Regulatory effect of the zinc transporter Zip2 on cardiomyocyte mitochondrial respiration function after cardiac ischemia-reperfusion injury in mice / 生理学报

The aim of the present study was to investigate the effect of zinc transporter Zip2 (SLC39A2) on mitochondrial respiration during myocardial ischemia/reperfusion (I/R) and the underlying mechanisms. An in vivo myocardial I/R model was established in mice by ligation of left anterior descending coronary artery. Cardiac zinc concentration was measured by inductively coupled plasma-optical emission spectrometer (ICP-OES), and the mitochondrial respiratory function and oxidative phosphorylation were determined by high-resolution respirometry (Oxygraph-2K). The phosphorylation levels of STAT3 and ERK in myocardial tissue were detected by Western blot. The results showed that, compared with the sham group, cardiac zinc concentration in myocardium was decreased in wild-type mice and further reduced in Zip2 knockout mice after I/R. Mitochondrial respiratory control rate (RCR) and oxidative phosphorylation were decreased in Zip2 knockout mice and worsened by I/R. Phosphorylation levels of STAT3 (Ser) and ERK were significantly decreased in Zip2 knockout mice after I/R. In I/R myocardial tissue, STAT3 overexpression significantly improved the mitochondrial respiratory function, while STAT3 dominant negative mutant (STAT3 S727A) inhibited mitochondrial respiratory function. Moreover, the impairment of mitochondrial function by Zip2 knockout was reversed by STAT3 overexpression. These results suggest that Zip2 regulates mitochondrial respiration via phosphorylation of STAT3 during myocardial I/R, which may represent the underlying mechanism of Zip2 cardioprotection against I/R injury.

Correlation between Ameliorated Kawashima Itch Scale and Visual Analogue Scale / 中国医学科学院学报

Objective To preliminarily validate the clinical usability of the ameliorated Kawashima Itch Scale(Xie-Kawashima Itch Scale) among adult pruritic patients on maintenance hemodialysis. Methods Xie-Kawashima Itch Scale was developed on the basis of Kawashima Itch Scale. Patients were asked to record their pruritus condition according to Xie-Kawashima Itch Scale or visual analogue scale(VAS) during daytime and night for two weeks. The record at the second week was used for analyzing the correlation between Xie-Kawashima Itch Scale and VAS. Results Totally 134 patients were enrolled in this study,among whom 128 entered the final analysis. Xie-Kawashima Itch Scale was positively correlated with VAS(r=0.832,95% CI=0.810-0.851,P<0.01 for daytime record;and r=0.848,95% CI=0.828-0.865,P<0.01 for night record). Subgroup analysis also showed similar correlations between different age groups and among different gender groups. Conclusion Xie-Kawashima Itch Scale has good correlation with VAS in patients on hemodialysis,without being affected by age or gender. Thus,it can be a useful tool for the assessment of pruritus in clinical practice and research.

Efficacy and safety of ipragliflozin treatment for type 2 diabetes:a Meta-analysis / 实用医学杂志

Objective To assess the efficacy and safety of ipragliflozin ,a sodium glucose cotransporter 2 (SGLT2)inhibitor,for the treatment of type 2 diabetes. Methods Pubmed,the Cochrane Library,EMbase,CBM and CNKI databases was searched to identify randomized controlled trials(RCTs)pertinent to of ipragliflozin. The risk of bias of the included RCTs was assessed according to the Cochrane Handbook for Systematic Reviews of Inter-ventions Version 5.1.The RevMan 5.3 software was used for Meta-analysis. Results Ten RCTs with 2,390 partici-pants were included,Meta analysis showed that ipragliflozin was more effective than placebo in improving HbA1c level,and could concurrently reduce body weight,blood pressure,and the fasting plasma glucose(FPG)but not increase the risk of hypoglycemia. There were no statistically significant differences in the occurrence of urinary tract infection and genital infection as well as serious adverse events. Conclusion As a safe method ,ipragliflozin can effectively improve the HbA1c level in type 2 diabetes,help patients lose weight and reduce blood pressure.

Efficacy and safety of ipragliflozin treatment for type 2 diabetes:a Meta-analysis / 实用医学杂志

Objective To assess the efficacy and safety of ipragliflozin ,a sodium glucose cotransporter 2 (SGLT2)inhibitor,for the treatment of type 2 diabetes. Methods Pubmed,the Cochrane Library,EMbase,CBM and CNKI databases was searched to identify randomized controlled trials(RCTs)pertinent to of ipragliflozin. The risk of bias of the included RCTs was assessed according to the Cochrane Handbook for Systematic Reviews of Inter-ventions Version 5.1.The RevMan 5.3 software was used for Meta-analysis. Results Ten RCTs with 2,390 partici-pants were included,Meta analysis showed that ipragliflozin was more effective than placebo in improving HbA1c level,and could concurrently reduce body weight,blood pressure,and the fasting plasma glucose(FPG)but not increase the risk of hypoglycemia. There were no statistically significant differences in the occurrence of urinary tract infection and genital infection as well as serious adverse events. Conclusion As a safe method ,ipragliflozin can effectively improve the HbA1c level in type 2 diabetes,help patients lose weight and reduce blood pressure.

Home-based Early Intervention on Auditory and Speech Development in Mandarin-speaking Deaf Infants and Toddlers with Chronological Aged 7-24 Months / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Early auditory and speech development in home-based early intervention of infants and toddlers with hearing loss younger than 2 years are still spare in China. This study aimed to observe the development of auditory and speech in deaf infants and toddlers who were fitted with hearing aids and/or received cochlear implantation between the chronological ages of 7-24 months, and analyze the effect of chronological age and recovery time on auditory and speech development in the course of home-based early intervention.</p><p><b>METHODS</b>This longitudinal study included 55 hearing impaired children with severe and profound binaural deafness, who were divided into Group A (7-12 months), Group B (13-18 months) and Group C (19-24 months) based on the chronological age. Categories auditory performance (CAP) and speech intelligibility rating scale (SIR) were used to evaluate auditory and speech development at baseline and 3, 6, 9, 12, 18, and 24 months of habilitation. Descriptive statistics were used to describe demographic features and were analyzed by repeated measures analysis of variance.</p><p><b>RESULTS</b>With 24 months of hearing intervention, 78% of the patients were able to understand common phrases and conversation without lip-reading, 96% of the patients were intelligible to a listener. In three groups, children showed the rapid growth of trend features in each period of habilitation. CAP and SIR scores have developed rapidly within 24 months after fitted auxiliary device in Group A, which performed much better auditory and speech abilities than Group B (P < 0.05) and Group C (P < 0.05). Group B achieved better results than Group C, whereas no significant differences were observed between Group B and Group C (P > 0.05).</p><p><b>CONCLUSIONS</b>The data suggested the early hearing intervention and home-based habilitation benefit auditory and speech development. Chronological age and recovery time may be major factors for aural verbal outcomes in hearing impaired children. The development of auditory and speech in hearing impaired children may be relatively crucial in thefirst year's habilitation after fitted with the auxiliary device.</p>

Inhibition effect of miR-577 on hepatocellular carcinoma cell growth via targeting β-catenin

OBJECTIVE@#To investigate the expression and the regulation effect of cell growth of microRNA-577 in hepatocellular carcinoma (HCC).@*METHODS@#qRT-PCR was applied to detect the relative expression of miR-577 in 70 paired HCC and matched tumor adjacent tissues collecting from resection between March 2011 and March 2014. Pearson chi-square test was used to analyze the relationship between the miR-577 expression and clinical features. The miR-577 mimics were transfected into HepG2 cells; cell cycles were detected by flow cytometry, cell proliferation was measured by MTT assay and BrdU incorporation assay, and cell apoptosis was determined by flow cytometry and caspase3/7 activity analysis. The expressions of β-catenin were measured by immunohistochemistry. Spearman correlation analysis was used to analyze the relationship between miR-577 and β-catenin. qRT-PCR and western-blot were used to detect the expression of β-catenin in transfected HepG2 cells.@*RESULTS@#The relative expressions of miR-577 was significantly lower in HCC tissues compared to the matched normal tumor-adjacent tissues (P < 0.05). Low expression of miR-577 was significantly associated with large tumor size (≥5 cm, P < 0.05) and advanced tumor node metastasis stage (III+IV, P < 0.05). Transfection of miR-577 mimics could inhibit repress cell proliferation, enhance cell apoptosis and block the cell cycles in G0/G1 phase (P < 0.05). miR-577 in HCC group had a significant negative correlation relationship with the expression of downstream target of β-catenin (P < 0.05). Both the mRNA and protein expression in HepG2 cells were down-regulated after transfection (P < 0.05).@*CONCLUSIONS@#Low expression of miR-577 is related to the malignant clinicopathological features in HCC tissues, and miR-577 may suppress HCC growth through down-regulating β-catenin.

Inhibition effect of miR-577 on hepatocellular carcinoma cell growth via targeting β-catenin

Objective: To investigate the expression and the regulation effect of cell growth of microRNA-577 in hepatocellular carcinoma (HCC). Methods: qRT-PCR was applied to detect the relative expression of miR-577 in 70 paired HCC and matched tumor adjacent tissues collecting from resection between March 2011 and March 2014. Pearson chi-square test was used to analyze the relationship between the miR-577 expression and clinical features. The miR-577 mimics were transfected into HepG2 cells; cell cycles were detected by flow cytometry, cell proliferation was measured by MTT assay and BrdU incorporation assay, and cell apoptosis was determined by flow cytometry and caspase3/7 activity analysis. The expressions of β-catenin were measured by immunohistochemistry. Spearman correlation analysis was used to analyze the relationship between miR-577 and β-catenin. qRT-PCR and western-blot were used to detect the expression of β-catenin in transfected HepG2 cells. Results: The relative expressions of miR-577 was significantly lower in HCC tissues compared to the matched normal tumor-adjacent tissues (P < 0.05). Low expression of miR-577 was significantly associated with large tumor size (≥5 cm, P < 0.05) and advanced tumor node metastasis stage (III+IV, P < 0.05). Transfection of miR-577 mimics could inhibit repress cell proliferation, enhance cell apoptosis and block the cell cycles in G

Changes of heart-type fatty acid-binding protein in children with chronic heart failure and its significance / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To study serum levels of heart-type fatty acid-binding protein (h-FABP) in children with chronic heart failure (CHF), and the correlation between heart function and the level of h-FABP, with the aim of studying the significance of h-FABP in CHF.</p><p><b>METHODS</b>Thirty-six children with CHF, including 16 cases of endocardial fibroelastosis (EFE) and 20 cases of dilated cardiomyopathy (DCM) were enrolled in the study. Thirty healthy children sevred as the control group. Serum levels of h-FABP were determined using ELISA, and left ventricular ejection fraction (LVEF), cardiac index (CI) and fractional shortening of the left ventricle (LVSF) were measured by two-dimensional echocardiography in the CHF group.</p><p><b>RESULTS</b>Mean levels of h-FABP in the CHF group were significantly higher than in the control group (21.7±4.3 ng/mL vs 6.2±1.7 ng/mL; P<0.01). The worse the heart function, the higher the h-FABP levels (P<0.01). Mean levels of h-FABP in both the EFE and DCM groups were significantly higher than in the control group (P<0.01). Serum h-FABP concentrations were negatively correlated with LVEF, CI and LVSF (r=-0.65, -0.64 and -0.71 respectively; P<0.01) in the CHF group.</p><p><b>CONCLUSIONS</b>Serum h-FABP levels increase in children with CHF and are closely related to the severity of the condition. Serum h-FABP levels can be used as a biomarker for the diagnosis of heart failure and the evaluation of its severity.</p>

Situation on HIV/AIDS epidemics among migrant population in China, 2008-2011 / 中华流行病学杂志

Objective To analyze the HIV/AIDS epidemics situation among migrant population.Methods Data on HIV/AIDS cases among mobile population through case reporting system was collected from 2008 to 2011.Results The number of reported cases on HIV/AIDS among mobile population had been rising,with proportions of the total reported cases increased from 10.2％ in 2008,to 18.2％ in 2011.Sexual contacts continued to be the major route of transmission.With the increasing proportion of homosexual transmission,HIV/AIDS cases among mobile population moved from high HIV-prevalence areas in the western and central parts to low HIV-prevalence areas in the eastern part of the country.Conclusion In recent years,the number of HIV/AIDS cases among mobile population was increasing in the case reporting system.Data showed that some male rural migrants had been engaged in commercial sex activities that called for more effective intervention measures to be taken to reduce the new HIV/AIDS infections in the migrant population.

HIV sero-conversion rate and risk factors among HIV discordant couples in Zhumadian city, Henan province / 中华流行病学杂志

<p><b>OBJECTIVE</b>To analyze the sero-conversion rate and risk factors among HIV discordant couples in Zhumadian.</p><p><b>METHODS</b>Sero-discordant couples had been followed up during 2006 - 2011. Information were collected from the National Comprehensive HIV/AIDS Information Management System and the HIV discordant couples Follow-up Management Information System including demographic characteristics of sero-negative spouses, the characteristics of infection and antiretroviral therapy information of index spouses, marital sexual behavior and social support etc., on a biannual basis. Blood specimens of sero-negative spouses were also collected and tested. Cox proportional-hazard model was used to analyze the related risk factors on HIV sero-conversion.</p><p><b>RESULTS</b>Among 4813 sero-discordant couples, 127 HIV sero-conversion spouses were identified, with a total sero-conversion rate as 0.63 per 100 person-years. The one-year sero-conversion rate in 2006 - 2011 ranged from 0.29 to 1.28 per 100 person-years. Factors that associated with increased risk of HIV sero-conversion were: sero-negative spouses with lower education level (RR = 1.50, 95%CI: 1.02 - 2.21, P = 0.04), index spouses not received ART (RR = 3.16, 95%CI: 2.20 - 4.56, P < 0.01) and last recorded CD4(+) cell counts as < 200 cells per µl (RR = 2.11, 95%CI: 1.40 - 3.19, P < 0.01), marital sexual contacts in the past 6 months with frequency of ≥ 4 times per month (RR = 4.27, 95%CI: 2.89 - 6.30, P < 0.01) but never used condoms (RR = 6.40, 95%CI: 3.67 - 11.17, P < 0.01), couples had not received any financial support and care assistance in the past 6 months (RR = 4.75, 95%CI: 2.34 - 9.64, P < 0.01).</p><p><b>CONCLUSION</b>During 2006 - 2011, the sero-conversion rate among sero-negative spouses in Zhumadian had been stabilized and the rate was lower than it was in the last years. The increase of ART acceptance and its adherence and social support should be improved and focused on the follow-up management towards the serodiscordant couples.</p>

Epidemiological characteristics of hepatitis C in China, 1997-2011 / 中华流行病学杂志

Objective To analyze the epidemiological characteristics and changing trend as well as the related affecting factors of hepatitis C in China.Methods Data analysis was performed based on the case-reporting data of hepatitis C from 1997 to 2011,using SPSS 19.0.Results The number of reported cases and incidence of hepatitis C had been increasing annually since 1997,especially in 2004.The hepatitis C reported incidence increased from 3.03 per 100 000 in 2004,to 12.97 per 100 000 in 2011.The 15 to 49 age group accounted for more than 50％ of all the reported cases,seen in every year.The number and proportion of hepatitis C reported cases among those over 50 year-olds had an annually increase.From 2005 to 2011,the number of cases in both urban areas and rural areas increased annually,while the urban-rural ratio decreased from 1.47 in 2005 to 0.99 in 2011.There appeared an increasing trend of hepatitis C reported incidence in China,with most of the high reported incidence of hepatitis C fell in the northern parts of China.74.8％ of the HCV/HIV co-infected cases had histories of intravenous drug use,plasma donation,blood transfusion or surgical operation.Conclusion The reported number and incidence of HCV infection had been increasing annually.To develop a more realistic control measures for hepatitisv C,it is necessary to strengthen the monitoring program and carrying out specific epidemiological study among target groups and key areas.

Establishment and evaluation of experimental sepsis mouse model / 中国实验血液学杂志

After treating with chemotherapy or immunosuppressant, malignant diseases of hematopoietic system such as leukemia, malignant lymphoma and aplastic anemia usually induced severe infection such as sepsis. Sepsis which is hard to be diagnosed causes high death rate. This study was purposed to establish an experimental sepsis mouse model so as to provide a basis for pathogenesis and intervention study. A classic caecal ligation and puncture (CLP) was used to establish experimental sepsis model. ELISA was used to detect levels of C5a, IL-6, TNFalpha, and IFN-gamma. Flow Cytometry was applied to measure apoptosis of lymphocytes in thymus and mesentery. The pathologic changes of thymus and spleen were confirmed by HE staining. The results showed that almost 70%-80% mice died at 72 hours after CLP. Only approximate 20% animal survived during finite time, mice in CLP group had significant weight lose. Meanwhile large release of different inflammatory mediators which are related with sepsis (C5a, IL-6, TNF-alpha, and IFN-gamma) was observed after CLP. Apoptosis of lymphocytes in thymus and mesentery lymphonodus was enhanced markedly after CLP. Significantly pathologic injury was also observed in thymus and spleen. It is concluded that a mouse model of experimental sepsis was successfully established by caecal ligation and puncture which can well mimic the clinical symptom of sepsis. The experimental sepsis mouse model provides an excellent tool for exploring the pathogenesis and intervention ways for sepsis accompanied with complicated malignant hematological diseases in vivo.

HIV/AIDS epidemic situation and data analysis among young students from 2006-2009 in China / 中华流行病学杂志

Objective To analyze the HIV/AIDS epidemic situation and related behavioral components among young students in the last years and to provide information for integrated control and prevention programs. Methods Data on young students (1 5-24 years) through case reporting system was collected from 2006 to 2009 and continuous sentinel surveillance data regarding 6 national sentinel sites carried out from 2006 to 2009 was also collected. The sentinel sites would include universities, junior college and secondary vocational colleges registered students, using cluster sampling phases method. Self-administered questionnaire survey and blood (HIV antibody testing and syphilis antibody testing) tests were carried out, with the sample size was about 800 cases per site per year. Results The number of case report on HIV/AIDS among the young students of 15-24 years age group had been rising. Similar trend was also observed on the number of reported cases over the years, accounting for the proportions of the total number of reported cases, as 0.39%, 0.50%, 0.83%and 1.02% respectively from 2006 to 2009. Sexual contacts continued to be the major route of transmission, with the increasing proportion of homosexual transmission. In the 6 national sentinel sites of young students which continuous surveillance was conducted during the period from 2006 to 2009, data showed the following facts as: proportion (median) of objects who admmited to have had sex, were: 4.3%, 4.5 % and 6.1%, proportions (median) of commercial sex occurred in the past year were: 0.3%, 0.2% and 0.3%; proportions (median) of MSM occurred in the past year were: 0.7%,0.2% and 0.2%; median of HIV antibody positive rate and syphilis antibody positive rate were 0%;median of awareness rate on HIV/AIDS were: 49.0%, 75.0% and 80.5%; proportion (median) of monitor objects who received intervention services in the past year were: 44.2%, 54.3% and 50.2% respectively. Conclusion In recent years, the HIV / AIDS number through case reporting system on the young students under 15-24 years age group, was increasing, but the HIV prevalence among young students was still relatively low, in general. The main transmission was sexual. Some young students had been engaged in commercial sex and MSM activities. Health education should be strengthened to increase the awareness of young students on AIDS/STD prevention. It is necessary to take more effective intervention measures to decrease new infection and control HIV/AIDS epidemic among young students.

Data analysis of national HIV comprehensive surveillance sites among female sex workers from 2004 to 2008 / 中华预防医学杂志

<p><b>OBJECTIVE</b>To monitor the time trend of behaviors change related to HIV/AIDS epidemic and HIV prevalence, and to provide information and basis for comprehensive HIV prevention responses and evaluation of intervention effectiveness among female sex workers in China.</p><p><b>METHODS</b>During the year of 2004 to 2008, a series of cross-sectional surveys were conducted among female sex workers in community recruited in both entertainment places and in street, during the defined timeframe, a face-to-face interview was conducted with uniformed questionnaire; while, the venous blood specimen was collected. The sample size was 400 per site per survey.</p><p><b>RESULTS</b>In 15 continuous national HIV comprehensive surveillance sites among female sex workers from 2004 to 2008, the median of HIV prevalence was 0.0%; Prevalence (median) of syphilis respectively: 0.5%, 1.8%, 1.6%, 1.8% and 1.0%. The median of target subjects who used condom in the last commercial sex was: 81.8%, 80.5%, 84.6%, 87.0% and 88.9% respectively; the median of always used condom in commercial sex during the last month: 65.8%, 59.6%, 60.3%, 59.8% and 73.7%. The median of awareness rate on HIV/AIDS transmission of female sex workers was: 74.3%, 84.1%, 65.2%, 66.0% and 74.3%. The median of target subjects who attended HIV VCT services were: 12.4%, 20.4%, 25.8%, 25.3% and 31.7%. The median of the proportion of female sex workers who reached intervention in last year respectively: 46.4%, 76.1%, 72.1%, 95.0% and 90.8%.</p><p><b>CONCLUSION</b>Condom use and HIV awareness rate need to enhance further among female sex workers. The proportion of female sex workers who attended VCT and knew their HIV testing result and the proportion of female sex workers who reached intervention in last year both increase. HIV prevalence rate among female sex workers is generally low, but high risk behaviors are still alarming. It is necessary to take more comprehensive and effective prevention measures and intervention.</p>

Levels of serum heart-type fatty acid-binding protein and its clinical significance in children with Kawasaki disease / 中国当代儿科杂志

<p><b>OBJECTIVE</b>This study examined serum level of heart-type fatty acid-binding protein (h-FABP) in children with Kawasaki disease (KD) in order to assess its value in KD.</p><p><b>METHODS</b>Forty children with KD and 30 healthy children were enrolled. Serum levels of h-FABP and cardiac troponin I (cTnI) were measured using ELISA. Serum creatine kinase-MB (CK-MB) level was detected using an autoanalyer. The KD group was classified into two subgroups, with or without coronary artery lesions, based on the findings of the echocardiography.</p><p><b>RESULTS</b>Mean serum levels of h-FABP (18.17+/-13.38 ng/mL vs 6.25+/-1.70 ng/mL; P<0.01) and cTnI (0.27+/-0.22 ng/mL vs 0.11+/-0.02 ng/mL; P<0.05) in the KD group was significantly higher than those in the control group. There was no significant difference in serum CK-MB concentrations between the two groups. Twenty-six patients (65%) and eight patients (20%) showed abnormally increased h-FABP and cTnI levels respectively in the KD group, but none of the control group showed increased levels of both. In the KD group, the percentage of patients with increased h-FABP was significantly higher than those with increased CTnI (P<0.01). The patients with coronary artery lesions had higher serum h-FABP level than those without (28.14+/-14.26 ng/mL vs 11.52+/-6.28 ng/mL; P<0.01).</p><p><b>CONCLUSIONS</b>Serum levels of h-FABP and cTnI increase and can be used as the biomarkers of myocardial damage in children with KD. h-FABP appears to be more sensitive and specific. Detection of serum h-FABP level is useful for diagnosis of KD and coronary artery lesions secondary to KD.</p>

Retrospective research on proportion of HIV related death causes in nine counties in China / 中华预防医学杂志

<p><b>OBJECTIVE</b>To investigate the proportion of HIV related death cause, and its years of potential life lost (YPLL) and work years of potential life lose (WYPLL) in project counties.</p><p><b>METHOD</b>According to the protocol of the third national death causes surveillance and HIV related death causes surveillance, retrospective study was implemented including baseline investigation of deaths' name list, demography information, door-to-door interview and death causes deduction in Gejiu, Ruili and Longchuan county in Yunnan province, Yangdong county in Guangdong province, Luzhai county in Guangxi zhuang Autonomous Region, Weishi and Zhecheng county in Henan province, Xishui county in Hubei province and Gu'an county in Hebei province.</p><p><b>RESULTS</b>The study was conducted among nine counties located in seven provinces. A total of 118 719 cases were included, raw mortality was 5.83 per thousand, 2002 death cases were related to HIV, which contributed 1.67% of total deaths. The average age of HIV death was 38.03 yearsow, which was earlier than the non-HIV-related life-span (63.10 years). The YPLL and WYPLL of HIV death was 33.80 years and 20.50 years, respectively, which had contributed the second highest average YPLL.</p><p><b>CONCLUSION</b>HIV has an important proportion among all death causes, and has contributed severe average YPLL and WYPLL.</p>

Screening of the Microbe Producing Docosahexaenoic Acid from Seawater and Identification on a Strain of High Yield / 微生物学通报

Microbes that produce Docosahexaenoic Acid were isolated from seawater. 160 strains capable of producing lipids were screened out using Sudan Black B dying method from 280 seawater samples. From 60 strains of microorganisms producing bigger lipid particles, 7 strains of them capable of producing lipids more than 8% were obtained with Soxhlet abstracting method in the first screening. In the secondary screening from 10 strains with high lipids yield, strain 7-3 capable of producing 15.9% lipids was obtained, in which the content of DHA(Docosahexaenoic Acid)is 45.2%. Strain 7-3 was identified as Brettanomyces based on its morphological properties, cultural characteristics, physiological and biochemical properties.

Changes of Serum Cardiac Muscle Enzymogram and Heart Function before and after Interventional Therapy in Ventricular Septal Defect Patients and Its Clinical Significance / 实用儿科临床杂志

Objective To explore the changes of cardiac muscle enzymogram and heart function before and after transactheter closure of ventricular septal defect(VSD).Methods The serum levels of cardiac troponin(cTnI),carcatine kinase(CK),lactie dehydrogenase(LDH),aspartate aminotransferase(AST)and the left ventricular ejection fraction(LVEF)were detected by two-dimensional echocardiography,and the change before and after intervention was analyzed.Results The serum level of cTnI in VSD patients after treatment was markedly higher than that before intervention[(0.29?0.17)?g/L vs(0.02?0.01)?g/L,t=9.0 P0.05).Conclusion Catheterization to treat VSD may have influence on enzymogram and the heart function,which may be related to the minor myocardial damage during the operation.