降纤酶治疗急性脑梗死双盲对照研究

目的 观察降纤酶治疗急性脑梗死的临床疗效。方法 用国产双盲编号的降纤酶静滴治疗发病２４ｈ内的急性脑梗死患者６５例（治疗组３１例、对照组３４例）,并同时于治疗前、后进行神经功能缺损评分及检测血浆纤维蛋白原（ＦＧ）、凝血酶原时间（ＰＴ）、凝血酶原活动度（ＰＡ）。结果 神经功能缺损评分显著进步率,降纤酶治疗组７４．２％,明显优于对照组２９．２％,两组比较有显著性差异（Ｐ〈０．０１）;治疗组ＦＧ降低明显优     

降纤酶治疗急性脑梗死血浆D—二聚体的研究

目的 探讨降纤酶治疗急性脑梗死患者血浆－Ｄ二聚体水平的变化以证实其溶栓作用。方法 采用前瞻性、随机、双盲对照方法。将７０例急性脑梗死病人分为治疗组和对照组。分别治疗前和治疗后第６天测血浆纤维蛋白原的Ｄ－二聚体。结果 治疗组血浆纤维蛋白原治疗后比前有明显下降,两者比较有明显的差异（Ｐ〈０．０１）。血浆Ｄ－二聚体治疗后比治疗前有明显的增高,两者比较有明显的差异（Ｐ〈０．０１）。而对照组均无明显差异（Ｐ     

蕲蛇酶配以高压氧治疗急性脑梗死疗效分析

目的 探讨治疗急性脑梗死有效的方案。方法 观察发病在４８ｈ内的急性脑梗死患者７８例,随机分为蕲蛇酶配以高压氧治疗组（高压氧组）和蕲蛇酶治疗组（蕲蛇酶组）。结果 治疗前后两组总有效率分别为９４．７％和９２．５％。基本治愈、显著进步百分比是高压氧组高于蕲蛇酶组,但差异不显著（Ｐ〉０．０５）。神经功能缺损程度总分数治疗前后比较,蕲蛇酶配以高压氧组第１个疗程后,差异显著（Ｐ〈０．０５）,第２个疗程后,差异     

国产降纤酶治疗脑梗死的前瞻性随机双盲对照研究

目的 应用全国脑防办双盲编号的国产降纤酶静滴治疗发２４小时以内的急性脑梗死病人３４例。方法 降纤酶治疗组２１例,对照组１３例,在应用降纤酶治疗前进行神经缺损评分,在出院时和第１２周进行病人日常生活功能的评估（Ｂａｒｔｈｅｌ氏指数）。并于治疗前后检测血浆纤维蛋白原含量、肝、肾功能。结果 近期泖降纤酶治疗组优于对照组,神经功能缺损评分亦优于对照组,但不具备统计学显著性差异（０．２〈Ｐ〈０．３）。病人第     

降纤酶对急性脑梗死患者凝血指标的影响

目的 对４０例急性脑梗死患者应用降纤酶治疗,监测治疗前后凝血指标变化。方法 采用美国库尔特公司２００型血凝仪检测凝血指标。结果 降纤酶可以显著降低纤维蛋白原（Ｐ〈０．０５）,对其它凝血指标有影响,但无统计学意义（Ｐ〉０．０５）。结论 降低纤维蛋白原是降纤酶的显著特征。     

降纤酶对急性脑梗死患者血纤维蛋白的影响分析

目的 观察降纤酶对急性脑梗死血纤维蛋白原的影响。方法 对３４例发病在２４ｈ内,并经头颅ＣＴ扫描排除出血性脑血管病的急性脑梗死患者,采用前瞻、双盲、对照研究方法,在发病当天和第３、５天分别给降纤酶（试验用药＿１０ｕ,５ｕ,５ｕ静滴,在发病当天和第２、４、６天分别查血纤维蛋白原在用药前无明显差异（ｔ＝０．１７３３,Ｐ〉０．０５）,而在用药后治疗组患者血纤维蛋白原明显降低,其中以第６天最为明显（ｔ＝０．     

灯盏花素治疗脑梗死50例临床观察

目的：观察灯盏花素治疗脑梗死的临床疗效。方法交１００例急性脑死患者随机分为两组,治疗组５０例,应用灯盏花素治疗;对照组５０例,应用脉络宁治疗。结果治疗组总有效率为９２．００％,对照组照组总有效率为７２．００％,两组比较有显著性差异（Ｐ〈０．０５）。结论灯盏花素是治疗急性脑梗死较为理想的药物,值得临床推广。     

急性脑梗死患者血清心肌酶学变化的临床意义及相关危险因素分析

目的：探讨急性脑梗死患者血清心肌酶学变化与预后的关系及导致急性脑梗死患者心肌酶学变化的相关危险因素。方法：回顾性分析临床及影像资料齐全且确诊的140例急性脑梗死患者（发病14天内）,根据有无血清心肌酶学升高分为血清心肌酶学升高的急性脑梗死组A组（43例）,血清心肌酶学正常的急性脑梗死组B组（97例）,应用美国国立卫生研究院卒中量表评分（NIHSS）比较两组神经功能缺损情况,并对两组病人血清心肌酶学（包括天冬氨酸氨基转移酶（AST）、肌酸激酶（CK）、肌酸激酶同工酶（CK-MB）、乳酸脱氢酶（LDH）、血糖、血脂、纤维蛋白原和血压等结果进行分析。结果：A组（31%）患者血清心肌酶学均增高,与B组比较均有显著性差异（P〈0.01）;发病后1天A、B两组患者临床神经功能缺损程度评分无显著性差异,发病后4、8、10天A、B两组患者临床神经功能缺损程度评分有显著性差异（P〈0.01）;A组高血压、糖尿病与B组比较有显著性差异（P〈0.05）;而血脂及纤维蛋白原两组比较无显著性差异。结论：急性脑梗死患者血清心肌酶学升高者预后不良;高血压、糖尿病是急性脑梗死患者血清心肌酶学升高的相关危险因素。     

东菱克栓酶加低分子肝素治疗急性脑梗死的疗效及安全性研究

目的 观察东菱克栓酶加低分子肝素治疗急性脑梗死的疗效及安全性。方法 在东菱克栓酶常规疗程结构后。２８例人造病人加用低分子肝素皮下注射。结果 总有效率达８２．１４％,神经功能缺损评分显著进步（Ｐ〈０．０５）。血液流变学多项指标进一步改善;而且加用低分子肝素后ＰＣＴ、ＰＴ、ＫＰＴＴ的影响不大（Ｐ〉０．０５）。结论 严格人造标准和必要的凝血功能监测。加用低分子肝素能在一定程度上提高疗诳改善预后,临床出血     

降纤酶治疗急性缺血性脑血管病的疗效观察

目的 观察应用降纤酶治疗急性缺血性脑血管病的疗效。方法 将急性缺血性服血管病患者105例,随机分为治疗组和对照组。治疗线54例,用降纤酶10u（体重在60kg以下得5u）加生理盐水250ml静脉滴注,每天1次,连用3天,第4天后改为隔日静滴1次,降纤酶总量达到60u;对照组51例,用复方丹参20ml加0．9％生理盐水250ml静脉滴汪,每天1次,连用14天为1个疗程。于治疗后第7天、第14天检测两组治疗前后的神经功能缺损评分和日常生活能力评分,以评价其临床疗效。于治疗后第7天、第14天检测两组治疗前后的神经功能缺损评分和日常生活能力评分,以评价其临床疗效。结果 治疗组的有效率和显效率分别达到87．03％和62．9％,而对照组的有效率和显效率分别为60．78％和37．25％,两组比较有显著性差异（P＜05）。两组治疗后的日常生活能力和神经功能缺损评分均有显著性差异（P＜0．01）,血液流变学指标有明显的改善（P＜0．01）。结论 降纤酶具有降低血浆纤维蛋白原、改善微循环、降低全血粘度等作用,是治疗急性缺血性脑血管病安全、有效的药物。     

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.