胺碘酮与厄贝沙坦联合治疗阵发性心房颤动的前瞻随机对照研究

目的:评价胺碘酮和厄贝沙坦联合治疗阵发性心房颤动维持窦性心律的长期疗效.方法:将110例阵发性房颤患者随机分为胺碘酮组(Ⅰ组,n=55)、胺碘酮+厄贝沙坦组(Ⅱ组,n=55),治疗随访时间为2年,研究的一级终点为房颤复发.比较两组治疗后的窦性心律维持率以及治疗前、治疗后6、12、18和24个月的左心房内径.结果:治疗12个月后,Ⅰ组左心房内径大于Ⅱ组(P＜0.05).试验终点时,Ⅰ组的窦性心律维持率为58.18%(32/55),Ⅱ组为78.18%(43/55).持续性窦性心动过缓和QT间期≥0.5s的发生率两组间差异无统计学意义.结论:胺碘酮联合厄贝沙坦,治疗阵发性房颤维持窦性心律优于单用胺碘酮,并能抑制左心房的扩大.     

胺碘酮联合厄贝沙坦治疗阵发性心房颤动的疗效观察

目的:探讨胺碘酮与厄贝沙坦联合治疗阵发性心房颤动的临床疗效。方法:将我院收治的97例阵发性心房颤动患者,随机分为观察组(N=49)和对照组(N=48)。对照组单纯服用胺碘酮,治疗组在此基础上加用厄贝沙坦。治疗随访12个月,一级观测终点为房颤复发。结果:治疗后12个月,观察组左心房内径显著小于对照组(P>0.05);治疗后6、12个月,观察组窦性维持率分别为89.8%、81.6%,对照组分别为72.9%、62.5%,两组均有统计学差异(P<0.05);治疗期间,观察组房颤复发率24.5%,显著低于对照组47.9%(P<0.05)。结论:胺碘酮联合厄贝沙坦治疗阵发性心房颤动于窦性心律的维持优于单用胺碘酮,且减少房颤复发,抑制左心房扩大。     

胺碘酮及阿托伐他汀联合应用对阵发性心房颤动复律后维持窦性心律的治疗分析

目的:分析胺碘酮和阿托伐他汀联合使用对阵发性房颤复律后维持窦性心律的疗效.方法:入选阵发性房颤患者80例,经成功转复心律治疗后按随机原则分成治疗组及对照组各40例,治疗组口服胺碘酮,对照组联合使用胺碘酮和阿托伐他汀,治疗18个月后对比两组窦性心律的维持率.结果:经治疗,联合用药组12个月时窦性心律的维持率显著高于对照组(82.5％ vs.62.5％,P＜0.05),18个月时窦性心律的维持率也显著高于对照组(80.0％ vs.55.0％,P＜0.05).结论:胺碘酮和阿托伐他汀联合使用对阵发性AF复律后维持窦性心律疗效显著,优于胺碘酮单药治疗,值得临床推广.     

不同剂量胺碘酮联合氯沙坦治疗阵发性房颤患者复律后的窦性心律维持效果

目的:研究不同剂量胺碘酮联合氯沙坦治疗阵发性房颤患者复律后的窦性心律维持效果。方法:选取2013年1月到2014年1月我院收治的阵发性房颤患者130例,按照随机数字表法将患者分为A组和B组,每组65例,两组均给予氯沙坦治疗,A组给予胺碘酮600 mg/d,1-2周后改用200 mg/d维持1年;B组给予胺碘酮600 mg/d,1-2周后改用200 mg/d,1个月后改为100mg/d维持1年,比较两组治疗前后转复维持有效率、心率、血压、左房内径(LAD)、左房舒张末期容积(LAEDV)、左房收缩末期容积(LAESV)、左心房射血分数(LAEF)以及不良反应。结果:两组转复维持有效率比较差异无统计学意义(P0.05);治疗后收缩压、舒张压、LAEDV和LAESV均优于治疗前(P0.05),但治疗后两组组间心率、收缩压、舒张压、LAD、LAEDV、LAESV、LAEF比较差异无统计学意义(P0.05);B组不良反应发生率显著低于A组,两组比较差异具有统计学意义(P0.05)。结论:小剂量胺碘酮联合氯沙坦与大剂量胺碘酮联合氯沙坦治疗阵发性房颤转复效果相当,但是不良反应较少。     

不同剂量胺碘酮联合氯沙坦治疗阵发性房颤患者的临床研究

目的:通过探讨不同剂量胺碘酮联合氯沙坦治疗阵发性房颤(PAF)患者的临床疗效,为PAF的治疗提供参考。方法:选择2013年6月~2014年6月本院收治的PAF患者共84例,按照随机数字表法随机分为大剂量组和小剂量组,分别在治疗1、3、6、12个月后观察两组患者窦性心律维持效果、左心室功能和血清高敏C反应蛋白(Hs-CRP)水平。结果:治疗1个月后,两组患者窦性心律维持效果的总有效率分别为93.73%和90.00%,差异无统计学意义(x~2=2.235;P0.05)。治疗3、6和12个月后,小剂量组患者窦性心律维持有效率均高于大剂量组,差异有统计学意义(x~2=4.208、5.271、5.688;P0.05)。小剂量组患者最大P波时限(Pmax)、P波离散度(Pd)和左心房直径(LAD)值均显著低于大剂量组患者,差异有统计学意义(t=-6.071、-3.509、-3.998;P0.05);左心室射血分数(LVEF)值显著高于大剂量组患者,差异有统计学意义(t=3.935;P0.05)。治疗1、6和12个月后,小剂量组血清Hs-CRP水平均低于大剂量组,差异有统计学意义(t=-4.515、-10.431、-19.113;P0.05)。结论:小剂量胺碘酮联合氯沙坦能够有效提高阵发性房颤患者窦性心律维持效果,改善患者左心室功能,降低Hs-CRP水平,值得临床推广借鉴。     

厄贝沙坦对慢性心力衰竭患者血清骨桥蛋白水平的影响

目的:探讨厄贝沙坦对心力衰竭(心衰)患者血清骨桥蛋白(OPN)水平及心功能的影响.方法:选择心衰患者106例,随机分为两组,并随机接受厄贝沙坦治疗,每组均为53例,常规治疗组,予以利尿剂、洋地黄制剂和β受体阻滞剂常规治疗,厄贝沙坦组,在常规治疗下加用厄贝沙坦150 mg/d,治疗12周,比较治疗前后各组患者血清OPN、B型利钠肽(BNP)水平、左室射血分数(LVEF)及左室舒张末内径(LVEDd).结果:心衰患者随着心衰程度的加重,血清OPN、BNP水平及LVEDd逐渐升高,而LVEF逐渐降低(P＜0.0l);与治疗前相比,治疗后两组患者血清OPN及BNP水平均明显降低(P＜0.01),而LVEF升高,LVEDd降低(P＜0.05),但厄贝沙坦组OPN、BNP水平及LVEF、LVEDd较常规治疗组变化更显著(P＜0.05).结论:OPN可反映心衰严重程度及判断患者的预后,在常规心衰治疗的基础上加服厄贝沙坦能进一步降低血清OPN水平,改善心功能及心衰患者的预后.     

卡维地洛联合厄贝沙坦治疗慢性心功能不全的疗效及对IL-6的影响

目的:探讨卡维地洛联合厄贝沙坦治疗慢性心功能不全的疗效及对血浆IL-6的影响。方法:选择64例慢性心功能不全患者采用平行对照法随机分为治疗组和对照组各32例,对照组给予血管扩张剂、利尿剂和强心剂等基础用药进行常规治疗,观察组在对照组的基础上加用卡维地洛联合厄贝沙坦进行治疗,疗程均为4周,观察两组患者的临床疗效、心功能分级和血浆IL-6水平变化情况。结果:4周疗程后,观察组总有效率为84.38%显著高于对照组的59.38%,差异有统计学意义(P0.05);心功能分级变化情况显示,治疗后两组患者心功能分级状况都有所变化,症状得到改善。与对照组相比观察组I级患者数量明显增加,III级数量减少,差异有统计学意义(P0.05);治疗后两组患者IL-6水平均下降,且左室射血分数(LVEF)值升高,与对照组相比观察组患者指标水平变化明显,差异有统计学意义(P0.05)。结论:在常规用药基础上加用卡维地洛和厄贝沙坦,可改善慢性心功能不全症状,降低IL-6水平,临床疗效显著。     

胺碘酮治疗老年急性心肌梗死伴心房颤动的临床研究

目的:探究胺碘酮治疗老年急性心肌梗死(AMI)伴心房颤动的疗程疗效。方法:选取于2014年1月-2016年6月来我院诊治的AMI且合并心房颤动患者74例为研究对象,采用随机数字表法分为观察组和对照组,每组各37例;观察组采用胺碘酮治疗,对照组采用毛花苷丙治疗,评价两组治疗效果,比较两组房颤动控制率、窦性心律维持率、病死率及不良反应发生率。结果:观察组的显效率、总有效率分别为73.0%(18/37)、94.6%(27/37),明显高于对照组的48.6%(27/37)、73.0%(35/37),差异有统计学意义(P=0.032,P=0.021);房颤动控制率及窦性心律维持率分别为67.6%(25/37)、81.1%(30/37)明显高于对照组的43.2%(16/37)、45.9%(17/37),差异有统计学意义(P=0.035,P=0.002);病死率及不良反应发生率分别为5.4%(2/37)、10.8%(4/37)明显低于对照组的21.6%(8/37)、51.8%(19/37),差异有统计学意义(P=0.041,P0.001)。结论:胺碘酮治疗老年AMI伴心房颤动的临床疗效显著,药物不良反应的发生率较低,安全有效,值得在临床应用推广。     

胺碘酮联合美托洛尔静脉注射治疗快速心律失常的临床效果观察

目的探讨胺碘酮联合美托洛尔静脉注射治疗快速心律失常患者的临床效果。方法选取38例快速心律失常患者为研究组,予以胺碘酮联合美托洛尔静脉注射治疗;同期选取38例快速心律失常患者为对照组,单纯予以胺碘酮治疗。观察比较两组患者心律转复率和整体有效率。结果研究组患者的整体有效率为94.74%,心律转复率为97.37%,高于对照组的78.95%和81.58%,组间比较差异均有统计学意义(P0.05)。结论胺碘酮联合美托洛尔静脉注射治疗快速心律失常的临床效果显著,值得推广应用。     

房颤患者血浆BNP水平的变化及临床意义

目的:研究血浆脑钠肽在阵发性房颤和持续性房颤患者中的变化及临床意义.方法:用酶联免疫法检测23例阵发性房颤和19例持续性房颤患者血浆BNP水平,并与健康对照组BNP进行比较.结果:转复为窦性心律前,两房颤组BNP水平无显著差别,且均高于对照组,转复为窦性心律后,两房颤组BNP水平明显下降(P＜0.05).结论:心房颤动影响血浆BNP水平的分泌.在转复为窦性心律后血浆BNP水平下降.提示血浆BNT水平可作为预测心房颤动发生的生化指标.     

生物素标记寡核苷酸探针检测B群轮状病毒

用５′端接氨基标记法,用生物素对Ｂ群轮状病毒（ＧＢＲＶ）ＩＤＩＲ株具有群特异性的３片段基因上２３ｂｐ寡核苷酸序列进行标记,经高效薄层层析板（ＨＰＴＬＣ）纯化,制备了Ｂ群轮状病毒生物素寡核苷酸探针,探针显色灵敏度达１０Ｐｇ,与ＧＢＲＶ、ＫＢ６３株基因杂交可检测到１００ｐｇ靶序列,而与Ａ群和Ｃ群轮状病毒及无关基因均不产生杂交信号,该探针可用于Ｂ群轮状病毒的检测、鉴定,以及同群不同毒株间基因相关性研究。     

Mind-altering with the gut: Modulation of the gut-brain axis with probiotics

It is increasingly evident that bidirectional interactions exist among the gastrointestinal tract, the enteric nervous system, and the central nervous system. Recent preclinical and clinical trials have shown that gut microbiota plays an important role in these gut-brain interactions. Furthermore, alterations in gut microbiota composition may be associated with pathogenesis of various neurological disorders, including stress, autism, depression, Parkinson’s disease, and Alzheimer’s disease. Therefore, the concepts of the microbiota-gut-brain axis is emerging. Here, we review the role of gut microbiota in bidirectional interactions between the gut and the brain, including neural, immune-mediated, and metabolic mechanisms. We highlight recent advances in the understanding of probiotic modulation of neurological and neuropsychiatric disorders via the gut-brain axis.     

Microorganisms associated with the retting of flax treated with the herbicide glyphosate

Greater numbers of fungi were isolated from stems of flax following treatment with the herbicide glyphosate than from untreated stems although there was also a general increase in numbers with time. The fungal genera isolated were the same from both treated and untreated plants, the most common being Cladosporium, Aureobasidium, Epicoccum and Botrytis with Cladosporium being predominant. Populations of bacteria were generally not enhanced after glyphosate treatment. Partial dew-retting of crops resulted in the reduction in numbers of Cladosporium compared with conventionally-treated flax. The increase in numbers of fungi was associated with an increase in retting. Overretting also occurred, particularly in discrete pale areas on the stem. These were associated with colonisation by Botrytis cinerea and the tensile strength of fibres from these areas was 15 times weaker than from surrounding darker areas of the stem. Light microscopy showed death of cells after glyphosate application, followed by invasion and degradation of the epidermis and cortex by fungi and other microorganisms. Fibre bundles were partially dissociated but the individual fibres remained largely intact as did the xylem and medulla.     

Regeneration of the acorn worm pygochord with the implication for its convergent evolution with the notochord

The origin of the notochord is a central issue in chordate evolution. This study examined the development of the acorn worm pygochord, a putative homologue of the notochord. Because the pygochord differentiates only after metamorphosis, the developmental was followed process by inducing regeneration after artificial amputation in Ptychodera flava. It was found that although the regeneration of the posterior part of the body did not proceed via formation of an obvious regeneration bud, pygochord regeneration was observed within a few weeks, possibly via trans-differentiation of endoderm cells. The expression of the fibrillary collagen gene (Fcol) and elav in the pygochord during regeneration was detected. This indicates that pygochord cells are not part of gut epithelial cells, but that they differentiated as a distinct cell type. Our gene expression analyses do not provide supporting evidence for the homology between the pygochord and notochord, but rather favored the convergent evolution between them.     

Hunting with Polar Bears: Problems with the Passive Properties of the Commons

Inuit in Canada’s Arctic conceptualize both human hunters and their polar bear prey as active participants in the hunt and as part of a larger socio-economic system requiring the involvement of both humans and animals. Although often treated through the lens of common-pool resource theory, the Inuit viewpoint conflicts with Western wildlife management systems that typically treat animals, and nature in general, as passive. When polar bears are understood as active participants in the hunt, the rights associated with common property regimes and assumptions about collective-choice decisions in common-pool resource management require significant revision. In this paper we argue that common-pool resource theories which assume natural resources are inherently passive cannot adequately account for the system of active relationships operating among Inuit in Arctic Canada. The co-management system of Nunavut Territory, Canada, uses a flexible quota approach, which, while following conservation guidelines, allows some space for the traditional Inuit-polar bear system to operate. This example shows how common-pool resources may be managed sustainably without the attendant assumption that natural resources exist passively outside of common-pool resource regimes.