目的探讨分析H型高血压患者临床特点和偏头疼的相关性。方法将深圳市龙华新区中心医院2016年1月至2016年12月期间内科住院部收治的400例原发性高血压(高血压)患者作为研究对象,按照血浆同型半胱氨酸(homocysteine,Hcy)浓度10μmol/L为...目的探讨分析H型高血压患者临床特点和偏头疼的相关性。方法将深圳市龙华新区中心医院2016年1月至2016年12月期间内科住院部收治的400例原发性高血压(高血压)患者作为研究对象,按照血浆同型半胱氨酸(homocysteine,Hcy)浓度10μmol/L为分界点及是否并发偏头痛,把所有患者分为4组:H型高血压并发偏头痛组(A组)、单纯H型高血压组(B组)、非H型高血压并发偏头痛组(C组)及单纯非H型高血压组(D组)。比较4组观察指标(包括性别、年龄、身高、体质量、体质量指数、血脂浓度、血清Hcy浓度、高血压病程、收缩压、舒张压)的差异。对H型高血压并发偏头痛组及非H型高血压并发偏头痛组用偏头痛生活品质问卷(migraine specific quality of life question,MSQ)评分评价。结果高血压并发偏头疼患者Hcy浓度、高血压病程显著大于高血压不并发偏头疼患者,差异有统计学意义(P<0.05)。H型高血压患者MSQ评分与血清Hcy浓度呈负相关(r=-0.034,P<0.05)。多因素Logistic回归数据分析表明血清Hcy浓度>15μmol/L是偏头痛发生的重要威胁因子。结论高血压患者随着血清Hcy浓度升高和高血压病程增长,会导致偏头疼发病率增加,Hcy浓度超过15μmol/L是偏头痛发生的重要威胁因子。展开更多
为筛选和评估牛分枝杆菌毒力菌株与卡介苗(BCG)基因差异区域(region of differences,RD)蛋白在牛结核病诊断中的效果,本研究表达了牛分枝杆菌RD1区的PPE68、RD9区的Mb1230、R11区的PPE57和RD2区的PE-PGRS35,并纯化得到纯度大于90%的重...为筛选和评估牛分枝杆菌毒力菌株与卡介苗(BCG)基因差异区域(region of differences,RD)蛋白在牛结核病诊断中的效果,本研究表达了牛分枝杆菌RD1区的PPE68、RD9区的Mb1230、R11区的PPE57和RD2区的PE-PGRS35,并纯化得到纯度大于90%的重组蛋白。通过优化条件建立了间接ELISA检测方法,并采用该方法检测了结核病阳性牛和健康牛血清中针对PPE68、Mb1230、PPE57和PE-PGRS35的IgM和IgG抗体水平,评价其在牛结核病血清学诊断中的潜力。结果显示,在结核病阳性牛中,针对PPE68、Mb1230、PPE57和PE-PGRS35的IgG抗体检出率分别为13.3%、43%、50%和30%,IgM抗体检出率分别为30%、10%、36%和33%。结果表明,R11区的PPE57和RD2区的PE-PGRS35有潜力作为牛结核病血清学检测的候选抗原,用于牛结核病的诊断。展开更多
Backgrounds Whether the contact force(CF)-sensing catheter could improve the efficiency of pace mapping(PM)in right ventricle outflow tract(RVOT)has not been fully studied.The present study was the first investigation...Backgrounds Whether the contact force(CF)-sensing catheter could improve the efficiency of pace mapping(PM)in right ventricle outflow tract(RVOT)has not been fully studied.The present study was the first investigation of the CF distribution in the right ventricle(RV)by using a CF-sensing catheter and the relationship between CF and capture threshold in RVOT.Methods In total,4543 mapping points with CF were recorded in 15 patients.Operators were blinded to CF data and data were analyzed according to 10 predefined RV segments.PM were performed at 6 different RVOT segments with 3 different intentional CF levels and 3 different pacing setup.The pacing threshold in RVOT and pacing capture level were recorded.The morphology matching score were recorded and analyzed.Results Median CF during RV mapping was 8(5-12)g and coefficient of variation was 71.64%.Median CF ranged from 9.5(5.8-16)g at the posterior-outflow tract freewall(OTFW)to 7(4-10)g at the apex.Distribution of CF≥20 g in RV predefined segments mainly located in the OTFW.Distribution of CF≤2 g in RV predefined segments mainly located in the inflow tract freewall(ITFW),anterior-OTFW,and apex.A total of 810 pacing were performed at RVOT with different CF and output.Stable capture rate could be significantly improved via increasing CF level under 2 mA output(46.7%/2-5 g vs.50%/6-9 g vs.91.1%/≥10 g),and no capture rate could be significantly declined simultaneously(16.7%/2-5 g vs.8.9%/6-9 g vs.2.2%/≥10 g).Conclusions A marked variability in CF was observed among the different predefined segments.CF mapping could improve the safety and efficacy of catheter ablation of premature ventricular contraction(PVC)/ventricular tachycardia(VT)in RV.CF was an essential factor in RVOT pace mapping process,especially under low-pacing output.[S Chin J Cardiol 2021;22(1):21-29]展开更多
文摘目的探讨分析H型高血压患者临床特点和偏头疼的相关性。方法将深圳市龙华新区中心医院2016年1月至2016年12月期间内科住院部收治的400例原发性高血压(高血压)患者作为研究对象,按照血浆同型半胱氨酸(homocysteine,Hcy)浓度10μmol/L为分界点及是否并发偏头痛,把所有患者分为4组:H型高血压并发偏头痛组(A组)、单纯H型高血压组(B组)、非H型高血压并发偏头痛组(C组)及单纯非H型高血压组(D组)。比较4组观察指标(包括性别、年龄、身高、体质量、体质量指数、血脂浓度、血清Hcy浓度、高血压病程、收缩压、舒张压)的差异。对H型高血压并发偏头痛组及非H型高血压并发偏头痛组用偏头痛生活品质问卷(migraine specific quality of life question,MSQ)评分评价。结果高血压并发偏头疼患者Hcy浓度、高血压病程显著大于高血压不并发偏头疼患者,差异有统计学意义(P<0.05)。H型高血压患者MSQ评分与血清Hcy浓度呈负相关(r=-0.034,P<0.05)。多因素Logistic回归数据分析表明血清Hcy浓度>15μmol/L是偏头痛发生的重要威胁因子。结论高血压患者随着血清Hcy浓度升高和高血压病程增长,会导致偏头疼发病率增加,Hcy浓度超过15μmol/L是偏头痛发生的重要威胁因子。
文摘为筛选和评估牛分枝杆菌毒力菌株与卡介苗(BCG)基因差异区域(region of differences,RD)蛋白在牛结核病诊断中的效果,本研究表达了牛分枝杆菌RD1区的PPE68、RD9区的Mb1230、R11区的PPE57和RD2区的PE-PGRS35,并纯化得到纯度大于90%的重组蛋白。通过优化条件建立了间接ELISA检测方法,并采用该方法检测了结核病阳性牛和健康牛血清中针对PPE68、Mb1230、PPE57和PE-PGRS35的IgM和IgG抗体水平,评价其在牛结核病血清学诊断中的潜力。结果显示,在结核病阳性牛中,针对PPE68、Mb1230、PPE57和PE-PGRS35的IgG抗体检出率分别为13.3%、43%、50%和30%,IgM抗体检出率分别为30%、10%、36%和33%。结果表明,R11区的PPE57和RD2区的PE-PGRS35有潜力作为牛结核病血清学检测的候选抗原,用于牛结核病的诊断。
基金supported by National Nature Science Foundation of China(No.81370295)Science and Technology Program of Guangdong(No.201508020261/No.2017A020215054)Science and Technology Planning of Guangzhou(No.2014B070705005)
文摘Backgrounds Whether the contact force(CF)-sensing catheter could improve the efficiency of pace mapping(PM)in right ventricle outflow tract(RVOT)has not been fully studied.The present study was the first investigation of the CF distribution in the right ventricle(RV)by using a CF-sensing catheter and the relationship between CF and capture threshold in RVOT.Methods In total,4543 mapping points with CF were recorded in 15 patients.Operators were blinded to CF data and data were analyzed according to 10 predefined RV segments.PM were performed at 6 different RVOT segments with 3 different intentional CF levels and 3 different pacing setup.The pacing threshold in RVOT and pacing capture level were recorded.The morphology matching score were recorded and analyzed.Results Median CF during RV mapping was 8(5-12)g and coefficient of variation was 71.64%.Median CF ranged from 9.5(5.8-16)g at the posterior-outflow tract freewall(OTFW)to 7(4-10)g at the apex.Distribution of CF≥20 g in RV predefined segments mainly located in the OTFW.Distribution of CF≤2 g in RV predefined segments mainly located in the inflow tract freewall(ITFW),anterior-OTFW,and apex.A total of 810 pacing were performed at RVOT with different CF and output.Stable capture rate could be significantly improved via increasing CF level under 2 mA output(46.7%/2-5 g vs.50%/6-9 g vs.91.1%/≥10 g),and no capture rate could be significantly declined simultaneously(16.7%/2-5 g vs.8.9%/6-9 g vs.2.2%/≥10 g).Conclusions A marked variability in CF was observed among the different predefined segments.CF mapping could improve the safety and efficacy of catheter ablation of premature ventricular contraction(PVC)/ventricular tachycardia(VT)in RV.CF was an essential factor in RVOT pace mapping process,especially under low-pacing output.[S Chin J Cardiol 2021;22(1):21-29]
