To examine the role of nitric oxide in the β-adrenergic vasodilation of epicardial coronary arteries in dogs, 12 dogs were instrumented for measurement of left anterior descending coronary artery diameter by transtho...To examine the role of nitric oxide in the β-adrenergic vasodilation of epicardial coronary arteries in dogs, 12 dogs were instrumented for measurement of left anterior descending coronary artery diameter by transthoracic echocardiography before and after dobutamine (5 μg/kg/min IV) with and without intracoronary infusion of N G-monomethyl-L-arginine (L-NMMA) (1 mg/kg). In all 12 dogs, the diameter of left anterior descending coronary artery increased significantly from 2.35±0.25 mm to 2.59±0.24 mm (P<0.001) after dobutamine administration. In 6 of the 12 dogs, the percent change in left anterior descending coronary artery diameter induced by dobutamine decreased significantly from 12.5%±8.6% to -1.5%±5.4% (P<0.05) after the administration of intracoronary L-NMMA (1 mg/kg for 5 min) to block nitric oxide synthesis from L-arginine. The study demonstrated that nitric oxide formation contributes to the β-adrenergic dilatory response of epicardial coronary arteries to dobutamine in dogs.展开更多
目的基于Meta分析评价β_(1)肾上腺素受体(ADRB1)389位点(rs 1801253)基因多态性对比索洛尔疗效的影响。方法通过计算机检索中国知网、维普网、万方数据知识服务平台、Web of Science、PubMed等数据库收集关于ADRB1与比索洛尔研究的文献...目的基于Meta分析评价β_(1)肾上腺素受体(ADRB1)389位点(rs 1801253)基因多态性对比索洛尔疗效的影响。方法通过计算机检索中国知网、维普网、万方数据知识服务平台、Web of Science、PubMed等数据库收集关于ADRB1与比索洛尔研究的文献,检索时间为建库至2023年7月。研究人员对发表的文献进行筛选,并将纳入文献进入质量评价,提取文献数据,对纳入文献结局指标使用Review Manager 5.3软件进行Meta分析。结果最终纳入文献6篇,其中Gly389Gly(GG型)69例,Gly389Arg(GC型)458例,Arg389Arg(CC型)611例。在降收缩压、舒张压及控制心率疗效方面,GG与CC基因型差异无统计学意义(P=0.96,P=0.84,P=0.87),GC与CC基因型差异无统计学意义(P=0.43,P=0.35,P=0.07),GG与GC基因型差异亦无统计学意义(P=0.60,P=0.68,P=0.77)。结论在比索洛尔降压及控制心率方面,ADRB1389位点基因多态性对其疗效影响并不明显。GG、GC及CC 3个基因型之间均未发现明显差异。展开更多
目的:系统评价乌拉地尔在男性良性前列腺增生(BPH)患者下尿路症状(LUTS)治疗中的潜在价值。方法:从PubMed、MEDLINE、Web of science、中国知网、万方数据库中鉴定和收集随机对照试验(RCT)或临床观察性研究。利用RevMan软件进行固定效...目的:系统评价乌拉地尔在男性良性前列腺增生(BPH)患者下尿路症状(LUTS)治疗中的潜在价值。方法:从PubMed、MEDLINE、Web of science、中国知网、万方数据库中鉴定和收集随机对照试验(RCT)或临床观察性研究。利用RevMan软件进行固定效应模型和随机效应模型的Meta分析。计算合并效应尺度以加权均数差及其95%可信区间(95%CI)表示。结果:共纳入3项短期(1个月内)观察性研究和1项RCT,共142例患者。发现乌拉地尔显著改善了患者的IPSS(MD=-5.57,95%CI:-7.98~-3.16,P<0.00001)、夜尿频率(MD=-0.7,95%CI:-1.16~-0.24,P=0.003)、残余尿率(MD=-6.97;95%CI:-12.57~-1.37,P=0.01)、平均尿流率(MD=2.04;95%CI:0.52~3.56,P=0.008)和最大尿流率(MD=4.29;95%CI:0.58~8.01,P=0.02),而残余尿量(MD=-35.93;95%CI:-78.62~6.76,P=0.10)在患者服药前后无统计学差异。结论:乌拉地尔是一种有效的缓解BPH患者LUTS的药物。但由于目前的RCT研究数量及质量有限,仍需高质量、大规模的RCT研究进一步证实这一结论。展开更多
Background Sequence variants in the 13-adrenergic receptor （ADRB） genes have a close relationship with the development of coronary artery disease （CAD） and the patient＇s prognosis. However, there is a lack of dat...Background Sequence variants in the 13-adrenergic receptor （ADRB） genes have a close relationship with the development of coronary artery disease （CAD） and the patient＇s prognosis. However, there is a lack of data on the role of the variants in ADRBs genes in Han Chinese patients with CAD. We aimed to investigate the association of genetic variants in the ADRB1 and ADRB2 genes with the incidence of major adverse cardiac event （MACE） in Han Chinese patients with CAD. Methods A total of 545 Han Chinese patients with CAD undergoing percutaneous coronary intervention （PCI） were recruited to the study and followed for one year. Three variant sites in ADRB1 （rs1801253） and ADRB2 （rs1042713 and rs1042714） were genotyped. The effect of the ADRB1 and ADRB2 genotypes on MACE within one year was assessed. Results There were 47 cases of MACE during follow-up. There was no significant difference in the incidence of MACE among patients carrying different genotypes of the three variants in ADRB1 and ADRB2 （Log-rank, all P 〉0.05）. Cox regression analysis showed no association between three variants in ADRB1 and ADRB2 genes and the incidence of MACE during one-year follow-up, the adjusted hazard ratios （95% confidence interval） for rs1801253, rs1042713 and rs1042714 were 1.05 （0.54-2.02）, 1.24 （0.58-2.64）and 1.66 （0.81-3.42）, respectively. Conclusion Our data did not support a relationship between the three polymorphisms of ADRB1 （rs1801253） and ADRB2 （rs1042713 and rs1042714） genes and risk of subsequent cardiovascular events after PCI in Han Chinese patients with CAD.展开更多
基金supported by a grant from the National Natura1 Science Foundation of China(No.30270560).
文摘To examine the role of nitric oxide in the β-adrenergic vasodilation of epicardial coronary arteries in dogs, 12 dogs were instrumented for measurement of left anterior descending coronary artery diameter by transthoracic echocardiography before and after dobutamine (5 μg/kg/min IV) with and without intracoronary infusion of N G-monomethyl-L-arginine (L-NMMA) (1 mg/kg). In all 12 dogs, the diameter of left anterior descending coronary artery increased significantly from 2.35±0.25 mm to 2.59±0.24 mm (P<0.001) after dobutamine administration. In 6 of the 12 dogs, the percent change in left anterior descending coronary artery diameter induced by dobutamine decreased significantly from 12.5%±8.6% to -1.5%±5.4% (P<0.05) after the administration of intracoronary L-NMMA (1 mg/kg for 5 min) to block nitric oxide synthesis from L-arginine. The study demonstrated that nitric oxide formation contributes to the β-adrenergic dilatory response of epicardial coronary arteries to dobutamine in dogs.
文摘目的:系统评价乌拉地尔在男性良性前列腺增生(BPH)患者下尿路症状(LUTS)治疗中的潜在价值。方法:从PubMed、MEDLINE、Web of science、中国知网、万方数据库中鉴定和收集随机对照试验(RCT)或临床观察性研究。利用RevMan软件进行固定效应模型和随机效应模型的Meta分析。计算合并效应尺度以加权均数差及其95%可信区间(95%CI)表示。结果:共纳入3项短期(1个月内)观察性研究和1项RCT,共142例患者。发现乌拉地尔显著改善了患者的IPSS(MD=-5.57,95%CI:-7.98~-3.16,P<0.00001)、夜尿频率(MD=-0.7,95%CI:-1.16~-0.24,P=0.003)、残余尿率(MD=-6.97;95%CI:-12.57~-1.37,P=0.01)、平均尿流率(MD=2.04;95%CI:0.52~3.56,P=0.008)和最大尿流率(MD=4.29;95%CI:0.58~8.01,P=0.02),而残余尿量(MD=-35.93;95%CI:-78.62~6.76,P=0.10)在患者服药前后无统计学差异。结论:乌拉地尔是一种有效的缓解BPH患者LUTS的药物。但由于目前的RCT研究数量及质量有限,仍需高质量、大规模的RCT研究进一步证实这一结论。
基金This work was supported by grants from the National Natural Science Foundation of China （No. 81072701 and No. 81373486）, the Natural Science Foundation of Guangdong Province （No. S2011010005830） and Science and Technology Development Projects of Guangdong Province, China （No. 201 lb061200030 and No. 2012A030400062）. Conflict of interest： none.
文摘Background Sequence variants in the 13-adrenergic receptor （ADRB） genes have a close relationship with the development of coronary artery disease （CAD） and the patient＇s prognosis. However, there is a lack of data on the role of the variants in ADRBs genes in Han Chinese patients with CAD. We aimed to investigate the association of genetic variants in the ADRB1 and ADRB2 genes with the incidence of major adverse cardiac event （MACE） in Han Chinese patients with CAD. Methods A total of 545 Han Chinese patients with CAD undergoing percutaneous coronary intervention （PCI） were recruited to the study and followed for one year. Three variant sites in ADRB1 （rs1801253） and ADRB2 （rs1042713 and rs1042714） were genotyped. The effect of the ADRB1 and ADRB2 genotypes on MACE within one year was assessed. Results There were 47 cases of MACE during follow-up. There was no significant difference in the incidence of MACE among patients carrying different genotypes of the three variants in ADRB1 and ADRB2 （Log-rank, all P 〉0.05）. Cox regression analysis showed no association between three variants in ADRB1 and ADRB2 genes and the incidence of MACE during one-year follow-up, the adjusted hazard ratios （95% confidence interval） for rs1801253, rs1042713 and rs1042714 were 1.05 （0.54-2.02）, 1.24 （0.58-2.64）and 1.66 （0.81-3.42）, respectively. Conclusion Our data did not support a relationship between the three polymorphisms of ADRB1 （rs1801253） and ADRB2 （rs1042713 and rs1042714） genes and risk of subsequent cardiovascular events after PCI in Han Chinese patients with CAD.
