缬沙坦联合硝苯地平缓释片治疗老年性高血压的临床效果观察

目的:探讨缬沙坦联合硝苯地平缓释片治疗老年性高血压的临床效果.方法:选择确诊为原发性高血压门诊及住院老年患者170例,52例患者采用缬沙坦治疗,分为A组;56例患者采用硝苯地平缓释片治疗,分为B组;62例患者采用缬沙坦联合硝苯地平缓释片治疗,分为C组.治疗6周后,比较各组临床效果及治疗前后收缩压(SBP)和舒张压(DBP)变化的差值.结果:联合用药治疗效果及控制血压效果好于单一用药效果.结论:缬沙坦联合硝笨地平缓释片治疗老年性高血压安全有效,临床效果好于单一用药效果.     

坎地沙坦酯治疗老年患者原发性高血压的疗效及安全性分析

目的:探讨坎地沙坦酯治疗老年高血压患者的疗效和安全性。方法:选取我院110例老年原发性高血压患者,随机分为观察组(坎地沙坦酯治疗)和对照组(依那普利治疗),对比分析两组患者药物治疗前、后的动态血压监测及相关指标。结果:经两个月治疗后,两组患者坐位收缩压(SBP)及舒张压(DBP)谷值均较基线明显降低,观察组下降幅度明显大于对照组,差异有统计学意义(P0.05);观察组的总有效率为90.91%,明显高于对照组的76.36%,差异有统计学意义(P0.05)。结论:坎地沙坦酯治疗老年患者原发性高血压疗效显著,可明显降低收缩压和舒张压,是治疗老年性高血压理想的制剂。     

老年原发性高血压合并心力衰竭患者行贝那普利联合美托洛尔治疗的临床研究

目的探究老年原发性高血压合并心力衰竭患者使用美托洛尔联合贝那普利治疗的临床疗效。方法选取我院2014年2月~2015年1月接收的老年原发性高血压合并有心力衰竭患者66例作为研究对象,按数字奇偶法将其分为2组,对照组(n=33)给予常规治疗,治疗组应用美托洛尔联合贝那普利治疗,观察两组患者治疗前后血压变化情况。结果两组患者治疗前收缩压、舒张压以及心率变化比较无明显差异,治疗后与治疗前比较,差异显著(p0.05);治疗组治疗后收缩压、舒张压、心率与对照组治疗后比较,差异具有统计学意义(p0.05)。结论联合应用美托洛尔与贝那普利在老年原发性高血压患者合并有心衰中,疗效显著,安全可靠,值得应用。     

硝苯地平联合缬沙坦治疗老年原发性高血压疗效分析

目的:探讨硝苯地平缓释片联合缬沙坦治疗老年原发性高血压的临床疗效。方法:将180例患者随机分入对照组与观察组,给予对照组86例患者硝苯地平缓释片口服降压;观察组94例患者接受硝苯地平缓释片联合缬沙坦治疗,比较两组患者治疗8周后血压、心率、脉压、肾功、尿酸、血钾及尿微量白蛋白的变化。结果:治疗后观察组患者收缩压、舒张压、脉压及心率均显著降低,治疗总有效率高于对照组,两组比较差异有统计学意义(P<0.01);观察组尿酸、尿微量白蛋白显著优于对照组(P<0.01),两组肾功、血钾比较差异无统计学意义(P>0.05)。结论:硝苯地平缓释片联合缬沙坦治疗老年原发性高血压,降压平稳,同时可显著降低尿酸及尿微量白蛋白,改善肾功能。     

氨氯地平联合依那普利治疗原发性高血压的临床疗效及对患者左心室肥厚的影响

摘要目的：探讨氨氯地平联合依那普利治疗原发性高血压的临床效果,观察联合用药对左心室肥厚的影响。方法：选择本院收治的原发性高血压患者92例,随机分为观察组和对照组,各46例,对照组给予苯磺酸左旋氨氯地平5mg,1次／d,口服;观察组在对照组基础上加用马来酸依那普利10mg,2次／d,口服,疗程均为24周。观察两组治疗前后血压变化,应用超声心动图测量两组左心室厚度变化。结果：治疗后,观察组总有效率为91_3％;对照组总有效率为73．9％,观察组总有效率高于对照组（P〈0．05）。治疗前两组心率、血压比较无统计学差异（P〉0．05）,治疗后两组血压均明显降低,观察组收缩压、舒张压明显低于对照组（P〈O．05）;观察组心率明显低于对照组（P〈0．01）。治疗前两组左心室舒张末期室间隔厚度（Leaventricularend—diastolicventricularseptalthickness,IVST）、左心室后壁厚度（1eftventricularposteriorwallthickness,U,PwT）和左室射血分数（Leftventricularejectionfxaction,LVEF）比较无统计学差异（P〉0．05）;治疗后观察组IVST、L、,PwT明显低于对照组,LVEF明显高于对照组（P〈0．05）。结论：氨氯地平联合依那普利治疗原发性高血压能有效扭转左心室肥厚,降压效果较单独应用氨氯地平更佳。     

缬沙坦联合苯磺酸左旋氨氯地平治疗201例高危高血压患者的疗效评价

目的探讨缬沙坦联合苯磺酸左旋氨氯地平治疗高危高血压患者的临床疗效。方法选择常州市新北区春江人民医院2014年6月至2016年6月收治的201例高危高血压患者,随机分为治疗组(n=101)和对照组(n=100)。对照组采用苯磺酸左旋氨氯地平治疗,治疗组在对照组的基础上联合缬沙坦治疗。观察比较两组收缩压和舒张压水平、血钾和血肌酐浓度、SF-36评分及不良反应发生情况。结果治疗后,两组收缩压和舒张压水平均显著降低(P0.05),且观察组低于对照组(P0.05);治疗后4周,观察组收缩压和舒张压水平亦均显著低于对照组(P0.05)。治疗后,两组血K+浓度、血肌酐浓度均显著降低(P0.05),且观察组低于对照组(P0.05);治疗后4周,观察组血K+浓度和对照组无差异(P0.05),血肌酐浓度亦低于对照组(P0.05)。两组SF-36评分均显著升高(P0.05),且观察组显著高于对照组(P0.05)。观察组不良反应率为5.94%,对照组为8.00%,两组比较无统计学意义(χ~2=1.612,P=0.880)。结论缬沙坦联合苯磺酸左旋氨氯地平治疗高危高血压临床疗效显著,安全性高,可以有效改善患者生活质量,值得推广应用。     

长期应用氨氯地平对老年高血压患者晨峰现象的影响

目的:分析长期应用氨氯地平治疗老年高血压患者的效果及对晨峰现象的影响。方法:选取2017年8月至2018年8月本院收治的老年高血压患者164例,按照患者入院顺序交替均分为两组(n=82)。观察组长期给予氨氯地平治疗,对照组给予非洛地平治疗,两组均连续治疗8周后,比较其降压效果及晨峰血压的变化。结果:治疗后,观察组的白昼平均收缩压(Day systolic blood pressure,dSBP)、白昼平均舒张压(Day diastolic blood pressure,dDBP)、夜间平均收缩压(Night systolic blood pressure,nSBP)、夜间平均舒张压(Night diastolic blood pressuren,DBP)、24 h平均收缩压(24 h systolic blood pressure,24hSBP)、24 h平均舒张压(24 h diastolic blood pressure,24hDBP)均低于对照组及治疗前(P0.05);观察组的晨峰值显著低于对照组及治疗前(P0.05);观察组患者的治疗前两组总胆固醇(Total cholesterol,TC)、甘油三酯(Triglyceride,TG)、低密度脂蛋白(Low density lipoprotein cholesterol,LDL-C)显著低于对照组及治疗前(P0.05),高密度脂蛋白(High density lipoprotein cholesterol,HDL-C)HDL-C显著高于对照组及治疗前(P0.05)。结论:对老年高血压患者长期应用氨氯地平不但降压安全、有效,且对控制血压晨峰现象具有积极的影响。     

藏族原发性高血压患者血管内皮功能与糖脂代谢指标和血压变异性的关系

目的:研究藏族原发性高血压患者血管内皮功能与糖脂代谢指标和血压变异性的关系。方法:以2017年2月-2018年2月暨南大学医学院附属广州红十字会医院收治的200例藏族原发性高血压患者为研究对象。将所有患者按照肱动脉血流介导的血管舒张功能(FMD)值分为正常FMD组(FMD≥6%)48例与异常FMD组(FMD6%)152例。分别比较两组患者的基本资料、糖脂代谢指标以及血压变异性指标水平,并分析藏族原发性高血压患者FMD与糖脂代谢和血压变异性的相关性。结果:异常FMD组年龄、空腹血糖水平高于正常FMD组(P0.05),而两组总胆固醇、甘油三酯、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)水平对比差异均无统计学意义(P0.05)。异常FMD组日间收缩压、日间舒张压、夜间收缩压、夜间舒张压、24h收缩压、24h舒张压水平均高于正常FMD组(P0.05)。经Preason相关性分析可得:藏族原发性高血压患者FMD值与空腹血糖、日间收缩压、日间舒张压、夜间收缩压、夜间舒张压、24h收缩压、24h舒张压均呈负相关关系(P0.05)。结论:藏族原发性高血压患者血管内皮功能受损越严重,其空腹血糖、血压就越高,临床工作中可通过联合检查上述指标水平,有助于评估藏族原发性高血压患者血管内皮功能。     

氯沙坦对原发性高血压患者左心室肥厚及血清MMP-9的影响

目的:探讨氯沙坦对原发性高血压伴左心室肥厚患者左心室结构及血清MMP-9的影响.方法:86例原发性高血压伴左心室肥厚患者分为氯沙坦治疗组(n=46)和对照组(n=40).在治疗前及治疗后8w,测定收缩压和舒张压,用彩色多普勒超声诊断仪测量舒张期左心室后壁厚度(PWT),舒张期室间隔厚度(IVST),左心室舒张末内径(LVID),并计算左室重量指数(LVMI)以判定左心室肥厚程度,另外,采用酶联免疫吸附法(ELISA)检测血清MMP-9.结果:治疗8w后,两组患者的收缩压、舒张压、LVMI值、血清MMP-9均较治疗前低(P<0.01或P<0.05),且氯沙坦治疗组患者的收缩压、舒张压、LVMI值、血清MMP-9较对照组低(P<0.01或P<0.05).结论:氯沙坦能降低原发性高血压血压、逆转左心室肥厚,并且能降低血清MMP-9表达.     

氨氯地平联合美托洛尔治疗原发性高血压的临床疗效观察

目的：观察氨氯地平联合美托洛尔治疗高血压的临床效果及安全性。方法：对2012年4月至2012年11月期间在我科住院治疗的102例患者随机分成两组,对照组接受氨氯地平治疗,治疗组在对照组的基础上使用美托洛尔治疗,分析比较两组的疗效。结果：治疗组和对照组的血压以及心率较治疗前明显降低,差异有统计学意义（P〈0．01）;治疗组治疗后的舒张压与对照组治疗后的舒张压相比,差异有统计学意思（P〈0．01）;治疗组的总有效率高于对照组（P〈0．05）;治疗组的副反应低于对照组（P〈0．05）。结论：氨氯地平联合美托洛尔治疗高血压效果显著,优于单纯应用氨氯地平。     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.     

The structure, reproduction and taxonomy of Vidalia and Osmundaria (Rhodophyta, Rhodomelaceae)

Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.     

New or rare chromosome counts in Artemisia L. (Asteraceae, Anthemideae) and related genera from Kazakhstan

Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.     

肝癌中HBV和HCV基因和抗原的分布及意义

采用原位分子杂交方法检测HCV RNA及HBV X基因;采用免疫组织化学方法研究HCV核心抗原,非结构区C33c抗原及HBxAg在肝细胞肝癌中的定位及分布.结果表明(1)HCV RNA、HBV X基因在肝细胞肝癌组织检出率分别为40%(55/136)和82%(112/136).HCV RNA定位于癌细胞的胞浆内,阳性细胞呈散在、灶状及弥漫分布三种形式;HBV X基因在肝癌细胞中的分布呈胞浆型、核型及核浆型,阳性细胞也呈上述三种分布形式;(2)HCV C33c抗原、核心抗原在肝细胞肝癌中的阳性率为81%(133/164)及86%(141/164).C33c抗原定位于癌细胞及肝细胞的胞浆内;核心抗原既定位于癌细胞核中,又可定位于胞浆中.C33c抗原阳性细胞以灶状分布为主;而核心抗原阳性细     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.