通心络胶囊对急性心梗PCI术后心肌微循环及心功能的影响

目的:探讨通心络胶囊对急性心梗经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)术后心肌微循环及心功能的影响。方法:选取2014年1月-2017年6月我院收治的ST段抬高型急性心肌梗死需经PCI患者200例,按照治疗方法分为对照组、观察组,每组100例。对照组进行常规药物治疗,观察组联合通心络胶囊进行治疗。比较两组PCI后心肌梗死溶栓(thrombolysis in myocardial infarction,TIMI)血流分级与计帧值(corrected thrombolysis in myocardial frame count,CTFC)、ST段回落情况、肌酸磷酸激酶同工酶(creatine phosphokinase-isoenzyme-MB,CK-MB)峰值及峰值时间,治疗前后心功能相关指标的变化。结果:PCI术后,两组冠脉TIMI血流分级比较差异不显著(P0.05),观察组CFTC显著低于对照组(P0.05),观察组ST段回落50%比例显著高于对照组(P0.05),CK-MB峰值及CK-MB峰值时间显著低于对照组(P0.05)。治疗后,两组左室射血分数(left ventricular ejection fraction,LVEF)、心脏指数(cardiac index,CI)均显著升高(P0.05)左心室舒张末期内径(left ventricular end-diastolic dimension,LVEDD)、左心室收缩末期内径(left ventricular end-systolic dimension,LVESD)均显著降低(P0.05),且观察组的以上指标的改善明显优于对照组(P0.05)。结论:通心络胶囊在急性心梗PCI后患者的应用中临床疗效良好,能够改善心肌微循环和心功能。     

静脉溶栓治疗28例急性心肌梗死的临床观察

目的:探讨静脉溶栓治疗急性心肌梗死(AMI)的临床疗效。方法:通过回顾性分析2011年9月至2012年8月在我院住院治疗的28例AMI患者采用静脉溶栓治疗,即观察组;与常规治疗后溶栓的29例AMI进行对照,比较两组发病至溶栓的时间和疗效。结果:两组发病至溶栓的平均时间以及冠脉再通率均具有显著性差异(P<0.01)。结论:静脉溶栓治疗急性AMI不但能减少发病至溶栓的时间,而且还可以提高AMI溶栓后的冠脉再通率,是急性心肌梗死的一种有效治疗方法。     

负荷剂量氯吡格雷治疗急性ST段抬高心肌梗死

目的:观察标准治疗基础上联合负荷剂量氯吡格雷治疗急性ST段抬高型心肌梗死(STEMI)的疗效及安全性。方法:106例12小时以内发病的ST段抬高型心肌梗死患者随机分为2组,2组均在入院后前3天给予阿司匹林300 mg.d~(-1),此后给予阿司匹林100 mg.d~(-1),A组不给予氯吡格雷治疗,B组入院即刻给予氯吡格雷300 mg,继之75 mg.d~(-1)治疗,平均随访30天。观察溶栓血管再通率、梗死后心绞痛发作、心力衰竭事件及死亡、再发心肌梗死或脑卒中的联合终点。结果:与A组相比,B组患者溶栓血管再通率显著提高、梗死后心绞痛发作明显减少;而在心力衰竭事件及死亡、再发心肌梗死、或脑卒中的联合终点的比较上差异无显著性意义。2组均无主要和次要出血事件发生,轻微出血发生率无统计学差异。结论:急性ST段抬高的急性心肌梗死患者,不论是否接受择期的冠脉介入治疗(PCI),在标准治疗的基础上早期加用氯吡格雷300mg负荷量,继之75 mg.d~(-1)口服,可显著提高溶栓成功率、降低梗死后心绞痛发作,且安全耐受性好。     

急性心肌梗死行PCI患者炎症因子的检测及其与预后的关系

目的:探讨急性心肌梗死行经皮冠状动脉介入治疗(PCI)血清炎症因子的改变及其与预后的关系。方法:选择126例拟行PCI治疗的急性心肌梗死患者为研究对象,比较PCI手术前后血清超敏C反应蛋白(hs-CRP)及肿瘤坏死因子α(TNF-α)的改变。同时比较PCI术后3月发生心血管事件患者与未发生心血管事件患者术后12h血清hs-CRP及TNF-α的差别。结果:患者PCI术后血清hs-CRP及TNF-α水平均显著升高,与术前相比差别具有统计学意义(P<0.05);PCI术后3月发生心血管事件患者PCI术后12h血清hs-CRP及TNF-α水平显著高于未发生心血管事件患者(P<0.05);Logistic回归结果显示:hs-CRP及TNF-α与心血管事件发生率显著相关。结论:急性心肌梗死行PCI患者术后发生急性炎症反应,hs-CRP及TNF-α水平升高与患者心血管事件发生密切相关,可作为评估预后的血清学指标。     

法舒地尔在急性ST段抬高型心肌梗死患者PCI术中疗效及安全性

目的:探讨法舒地尔在急性ST段抬高型心肌梗死(STEMI)患者经皮冠状动脉介入治疗术(PCI)中的疗效及安全性。方法:选择2014年1月至2016年1月间于我院就诊的急性ST段抬高型心肌梗死患者173例作为研究对象,随机将其分为观察组87例及对照组86例。对照组患者单纯行PCI治疗,观察组患者在PCI治疗过程中加用法舒地尔。对两组患者临床疗效、TIMI血流分级、左心功能指标及生化指标以及心血管不良事件进行考察与比较。结果:观察组患者治疗总有效率为90.80%,高于对照组的70.93%,P0.05。治疗前两组患者TIMI血流分级无显著差别(P0.05),治疗后两组患者TIMI血流3级患者较治疗前明显增多,且观察组TIMI血流3级患者明显多于对照组(P0.05)。观察组患者治疗后左心功能指标及生化指标均明显优于对照组(P0.05)。观察组患者心血管不良事件发生率仅为6.90%,远远低于对照组的45.35%,P0.05。结论:急性ST段抬高性心肌梗死患者在PCI术中使用法舒地尔具有良好的临床疗效及安全性,有利于患者心功能改善,值得临床推广应用。     

血栓抽吸联合PCI术前阿托伐他汀强化治疗急性ST段抬高型心肌梗死

目的:探讨急性ST段抬高型心肌梗死急诊经皮冠状动脉介入治疗(PCI)中应用GOODMAN血栓抽吸装置联合术前阿托伐他汀强化治疗对心肌组织灌注及临床预后的影响.方法:选择梗死相关血管心肌梗死溶栓试验血流0级的急性ST段抬高型心肌梗死患者80例,随机分为血栓抽吸联PCI术前阿托伐他汀强化治疗组(试验组)40例和标准PCI治疗组(对照组)40例.比较两组患者术后心肌梗死溶栓试验(TIMI)血流分级、TIMI心肌灌注分级(TMPG)、心电图ST段回落百分比、左心室射血分数(LVEF)及住院期间主要心血管不良事件(MACE).结果:试验组TIMI血流分级、TMPG、ST段回落百分比、LVEF均明显优于对照组(P＜0.05).两组患者住院期间MACE发生率比较,差异无统计学意义(P＞0.05).结论:在急性ST段抬高型心肌梗死急诊经皮冠状动脉介入治疗(PCI)中应用血栓抽吸联合术前阿托伐他汀强化治疗安全可行,可有效清除冠状动脉内血栓,改善心肌组织灌注及术后心脏功能,并且不增加主要心血管事件的发生率.     

维拉帕米对急性前壁心肌梗死行急诊PCI术患者再灌注室性心律失常的影响

目的:探讨经指引导管早期应用维拉帕米对急性前壁心肌梗死行急诊经皮冠状动脉介入治疗术(Percutaneous Coronary Intervention,PCI)患者再灌注室性心律失常的影响。方法:采用单中心、随机对照、前瞻性研究方法。选取2014年5月-2016年11月诊断为急性前壁心肌梗死并于我院行急诊PCI的患者,共纳入162例患者,按随机方法(随机数字表)分成2组,其中治疗组82例,对照组80例。治疗组患者在首次球囊扩张后早期经指引导管内给予维拉帕米(200μg),对照组患者则给予生理盐水。观察再灌注后室性心律失常发生率,PCI术后冠脉血流情况,心肌梗死相关血清指标(CK-MB,cTn I)的峰值,住院期间发生的主要不良心血管事件(MACE)。结果:维拉帕米治疗组患者再灌注心律室性失常及无复流的发生率显著低于生理盐水对照组(P0.05);维拉帕米治疗组患者cTnI和CK-MB峰值分别为(46.63±13.77)μg/L和(139.87±35.45)U/L,生理盐水组cTnI和CK-MB峰值为(54.36±12.59)μg/L和(158.34±40.18)U/L,两组比较,P均0.01。MACE事件两组间未见有统计学差异。结论:急性前壁心肌梗死患者急诊PCI术前经导管早期给予维拉帕米不但可显著减少无复流现象,还可显著减少再灌注后室性心律失常的发生,住院期间MACE事件的发生率无显著性差异。     

不同性别急性心肌梗死合并心衰患者院内治疗及一年随访情况的比较

目的:比较不同性别急性心肌梗死(Acute Myocardial Infarction,AMI)合并心衰患者住院期间院内治疗方式、一年随访用药依从性及心血管不良事件发生情况。方法:收集我院2014年10月至2015年6月收治的136例急性心肌梗死合并心衰患者,分析和比较不同性别患者入院时的临床特征、住院期间治疗方式、一年随访过程中用药依从性以及心血管不良事件发生率的差异。结果:本研究共入组136例急性心肌梗死合并心衰患者,其中男性患者70(51.47%)例,女性66(48.53%)例。男性患者具有吸烟史、饮酒史的比例显著高于女性患者(62.86%vs 28.79%,P=0.001;35.71%vs 10.61%,P=0.001),但具有糖尿病史的比例明显低于女性(35.71%vs 53.03%,P=0.042);男性患者住院期间接受溶栓或经皮冠状动脉介入(Percutaneous Coronary Intervention,PCI)治疗的比例明显高于女性(62.86%vs 45.45%,P=0.042);男性患者一年随访期间出现胸痛、卒中的比例低于女性(11.43%vs 24.24%,P=0.050;2.86%vs 12.12%,P=0.050);但出血事件的发生率高于女性(10.00%vs 0%,P=0.014)。结论:男性急性心肌梗死合并心衰患者住院期间接受溶栓或PCI治疗的比例明显高于女性;一年随访过程中出现胸痛、卒中事件率低于女性,但出血事件的发生率高于女性。     

早期康复训练对冠心病介入治疗术后恢复的影响

目的:探讨经皮冠脉介入(PCI)治疗的急性心肌梗死(AMI)患者行早期康复训练后的疗效与安全性。方法:192例AMI患者经PCI治疗后随机分为康复组与对照组各96例,分别予早期心脏程序康复训练与传统康复治疗。比较2组患者的心脏结构、并发症及住院时间。结果:在住院期间及随访1年后,两组患者左室舒张末内径、左室收缩末内径、左室后壁厚度及左室射血分数无统计学差异(P>0.05);心律失常、心绞痛及死亡率等并发症均无显著性差异(P>0.05);而对照组院内感染发生率明显多于康复组(P<0.05)。结论:AMI患者PCI术后行早期心脏程序康复训练安全、有益,可明显减少院内感染的发病率,缩短住院时间。     

经血栓抽吸导管应用替罗非班及硝普钠对急性前壁ST段抬高型心肌梗死患者急诊PCI治疗效果的影响

目的:探讨经血栓抽吸导管应用替罗非班及硝普钠对急性前壁ST段抬高型心肌梗死患者急诊经皮冠状动脉介入(PCI)治疗效果的影响。方法:选取2013年5月～2018年5月期间我院收治的急性前壁ST段抬高型心肌梗死患者80例,根据随机数字表法分为对照组(n=40,血栓抽吸术后行PCI治疗)和研究组(n=40,血栓抽吸术后,经导管注入替罗非班及硝普钠后再行PCI治疗),比较两组患者心电图ST段回落变化、心肌梗死溶栓治疗(TIMI)血流分级情况、心功能指标及不良心血管事件发生率。结果:研究组完全回落发生率高于对照组(P0.05);两组部分回落、无回落发生率比较差异无统计学意义(P0.05)。对照组PCI术后TIMI血流分级为3级的例数少于研究组(P0.05)。两组患者术后7 d左室收缩末期内径(LVESD)、左室舒张末期内径(LVEDD)降低,且研究组低于对照组(P0.05);左室射血分数(LVEF)升高,且研究组高于对照组(P0.05)。术后6个月内研究组不良心血管事件总发生率为7.50%(3/40),低于对照组的25.00%(10/40)(P0.05)。结论:急性前壁ST段抬高型心肌梗死患者经血栓抽吸导管应用替罗非班及硝普钠后行PCI,可提高心功能、心肌灌注状态及心电图ST段完全回落率,并减少不良心血管事件的发生率。     

Some observations on shell shape variation in Pacific Nucella

This paper considers the patterns of shell shape variation shown by Nucella canalicuata, N. emarginata and N. lamellosa from two areas of the Pacific Northwest: the shores near Friday Harbour on San Juan Island and near Bamfield on the west coast of Vancouver Island. No clear pattern of variation in association with changes in exposure was seen in either N. canaliculata or N. lamellosa . It appears that genetic influences are more important controls of shell shape than environmental selection in both these species. Nucella emarginata shows the nearest approximation to the pattern shown by the Atlantic species, N. lapillus , but only at the exposed end of the wave-action gradient. On those shores, enclaves from the most surf-washed open coast headlands have shells with proportionally larger apertures (and thus a shorter, squatter form) than their equivalents in local shelter. But, unlike in N. lapillus , the trend does not continue onto genuinely sheltered shores. Under these circumstances the species is generally rare and, where enclaves do occur, their shells are of much the same shape (although of a much larger size) as in more exposed situations.     

Assessing natural infection with Zika virus in the southern house mosquito,Culex quinquefasciatus,during 2016 in Puerto Rico

The epidemic of Zika in the Western hemisphere has led to intense investigations of all species important in the transmission of Zika virus (ZikV), including putative mosquito vectors. Although evidence points to Stegomyia (= Aedes) (Diptera: Culicidae) mosquitoes as the primary vectors in nature among humans, there remains the possibility that other common mosquito species may be implicated in the rapid spread of the virus. Herein, field‐caught Culex quinquefasciatus (Diptera: Culicidae) collected during June 2016 in different neighbourhoods in San Juan, Puerto Rico were examined for the presence of natural infection with ZikV. Stegomyia aegypti (= Aedes aegypti) from the same locations were also analysed. None of the Cx. quinquefasciatus tested showed natural infection for ZikV, whereas S. aegypti tested positive at seven sites. The present results suggest that Cx. quinquefasciatus was not involved in the transmission of ZikV in San Juan, Puerto Rico in 2016.     

Functions of the testicular gland in two blenniid fishes, Salaria (=Blennius) pavo and Lipophrys (= Blennius) dalmatinus (Blenniidae, Teleostei) as revealed by electron microscopy and enzyme histochemistry

The functions of the testicular gland in two different blenniid fishes, Salaria pavo and Lipophrys dulmutinus , are described by fine structural and enzyme histochemical methods. In the testes of the two fishes no mature spermatozoa are found. Sperrniogenesis occurs only until the spermatidal stage. Spermatids are released into the testicular gland. During the spawning period the testicular gland functions in differentiation of spermatids, nutrition of spermatids, and secretion of sialomucins. After spawning, the testicular gland has phagocytotic functions in resorbtion of remaining spermatids, which are transformed into lipids in the gland cells. During the interspawning period the testicular gland is a storage reservoir for lipids and phospholipids which are re-transformed into testicular gland secretion in the next reproductive season. Testicular gland cells themselves do not have steroidogenetic functions, but steroids are synthesized by interstitial cells homologous to Leydig cells in other fish. Possible explanations for the reduction of the testis in L. dalmatinus and implications of the testicular gland in taking over testicular functions are discussed.     

The chemosystematics of Egyptian Trigonella species

Flavonoid glycosides of eight Trigonella species belonging to four sections of the Leguminosae [Gamal El Din, E.M. and Hassan, A.E. (1995) Taeckholmia, in press] were investigated. Fifteen glycosides were found based on the aglycones kaempferol, quercetin and the less common 7,4′-dihydroxyflavone and 7,3′,4′-trihydroxyflavone. One isoflavone (formononetin) was found in all Trigonella species. Chemosystematic relationships are discussed.     

Preliminary evaluation of four immunological tests for the early diagnosis of Hypoderma tarandi causing hypodermosis in reindeer

294 serum samples from five Norwegian reindeer herds were examined for antibodies against Hypoderma tarandi L. The first and second larval instars of H. tarandi were tested as antigens in immunodiffusion tests, passive haemagglutination and an Enzyme-Linked Immunosorbent Assay (ELISA). The latter technique, using first instar antigens, produced the best results. A significant difference (P less than 0.1%) was observed between the antibody value of naive reindeer bred in France and those from infected Norwegian herds. No correlation was observed between the antibody titre and the number of warbles recovered at necropsy from the 294 Norwegian reindeer.     

“EB-82灭蚜菌”制剂对老龄菜青虫室内作用研究——拒食方法应用

通过不同农药处理菜青虫 ,对其生长量、取食量及干重进行拒食性分析 ,验证“EB 82灭蚜菌”菌剂作用于老龄菜青虫 (Pierisrapae)幼虫的方式 ,利用拒食方法 ,比较不同处理菜青虫幼虫存活率、取食量、体重干重、粪便干重 ,通过方差分析 ,差异极显著 ,F =6.35～ 70 2 .16>F0 .0 1( 4 ,10 ) =5.994 ;进一步利用最小显著极差法 (LSR)分析 ,“EB 82灭蚜菌”菌剂与敌敌畏、饥饿和对照处理均差异极显著 ,p =5时 ,LSR0 .0 1=7.70 1,相差为 7.7～ 92 .3。     

肺泡上皮细胞钠-钾ATP酶与海水淹溺型肺水肿

钠-钾ATP酶(Na -K -ATPase)对于维持胞质渗透压和细胞容积的相对稳定以及细胞内pH的稳定具有重要的生理意义.肺泡上皮具有阻止液体进入肺泡腔内和主动清除肺泡腔内液体的作用,是抵抗肺泡性肺水肿形成的一道重要屏障.这一功能的完成有赖于Ⅱ型肺泡上皮细胞对钠离子的主动转运和分布于Ⅰ型、Ⅱ型肺泡上皮细胞的特殊水通道,而钠离子的主动转运依靠钠-钾ATP酶来完成.海水淹溺型肺水肿(PE-SWD)是以低氧血症及代谢性酸中毒为主要病理生理学特点的临床病症.PE-SWD发生时,Na -K -ATPase活性的改变直接影响到细胞膜外Na 、K 、等离子的浓度和分布,既是造成PE-SWD发生的多种因素所引起的直接恶果,又是促进PE-SWD不断发生的继发性原因.因此认识肺泡上皮细胞钠-钾ATP酶在PE-SWD发病中的作用对于PE-SWD的治疗具有重要意义.本文就钠-钾ATP酶的功能、结构、调节机制及钠-钾ATP酶在PE-SWD发病中的作用作一综述.     

Jumping cockroaches (Blattaria,Skokidae fam. n.) from the Late Jurassic of Karatau in Kazakhstan

The jumping cockroach Skok svaba gen. et sp. n., characteristic of modern reproduction, is described from the Upper Jurassic Karabastau Formation in Kazakhstan, and attributed to a new family Skokidae. The finding demonstrates the immense plasticity of stem cockroaches from which eusocial termites and predatory mantises evolved.     

“EB-82灭蚜菌”制剂对蔷薇三节叶蜂和菜青虫毒力测定

利用“EB 82灭蚜菌”菌剂 ,通过设定不同方法处理蔷薇三节叶蜂 (Argegeei)和菜青虫 (Pierisrapae)幼虫 ,进行室内防治实验 ,分析“EB 82灭蚜菌”菌剂对蔷薇三节叶蜂和菜青虫幼虫的作用。结果表明 ,“EB 82灭蚜菌”菌剂不同浓度及不同时间与胃毒作用杀虫剂敌敌畏和对照处理 ,其死亡率和取食量均差异极显著。“EB 82灭蚜菌”菌剂不同浓度处理蔷薇三节叶蜂对死亡率和取食量比较 ,2 0 0倍和 4 0 0倍之间死亡率无差异 ,10 0倍和 2 0 0倍之间 ,2 0 0倍和 4 0 0倍之间取食量无差异 ,进一步确定“EB 82灭蚜菌”菌剂的最低施用浓度 ;“EB 82灭蚜菌”菌剂浸叶不同时间喂养菜青虫 ,死亡率和取食量比较表明 ,1min和 5min之间 ,10min、30min和 60min之间死亡率无差异 ,10min和 30min之间取食量无差异。     

Genetic diversity and differentiation between Palearctic and Nearctic populations of Aedimorphus (=Aedes) vexans (Meigen, 1830) (Diptera,Culicidae)

Genetic diversity was studied at allozyme loci in two Palearctic and one Nearctic population of Aedimorphus (=Aedes) vexans, a species of public health and veterinary importance. The population from Serbia was the most polymorphic (P= 35%) with the highest observed heterozygosity (H_o= 0.027). The lowest observed heterozygosity (H_o= 0.010) was obtained for the Nearctic population. All analyses based on individual (STRUCTURE analysis) and population level (pairwise F_ST,Nm values, AMOVA, Nei's D value) revealed significant structuring between Nearctic and Palearctic populations, indicating a lack of gene flow and thus, the presence of independent gene pools. Taxon‐specific alleles at the diagnostic Ao, Hk‐2, Hk‐3, Hk‐4, Idh‐1, and Idh‐2 loci were used for identification and separation of Nearctic and Palearctic populations. Population genetics study provided valuable information on the correct distinction of Am. vexans populations and their adaptive potential that could find a future use in the studies of vector competence and development of vector‐control strategies.