蕲蛇酶治疗急性血栓性深部静脉炎110例临床观察

目的 观察蕲蛇酶治疗急性血栓性小腿深部静脉炎的临床疗效。方法 将162例急性血栓性小腿深部静脉炎患者分为治疗组110例,对照组52例 ;治疗组用蕲蛇酶治疗,对照组用丹参粉治疗。治疗前后分别检查血液流变学指标。结果 治疗组总有效率98．2％,对照组总有效率78．8％,两组疗效比较有显著性差异（P＜0．01）。治疗组治疗后纤维蛋白原含量、全血粘度、血浆粘度、红细胞压积、血沉、血小板聚集率与治疗前比较均有下降,差异显著（P＜0．01或P＜0．05）。对照组除血沉外,其余各项血液流变学指标治疗前后无显著性差异（P＞0．05）。结论 蕲蛇酶是溶栓和预防血栓形成的理想药物。     

降纤酶治疗心源性脑栓塞疗效观察

目的 探讨降纤酶治疗心源性脑栓塞的临床疗效和安全性。方法 对32例心源性脑栓塞病人给予降纤酶10u加0．9％氯化钠250ml中静滴,每天1次,10天为1疗程。用药期间监测血浆纤维蛋白原、血液粘度、凝血酶原时间、血小板聚集率及肝肾功能。结果 临床疗效显著,总有效率84．4％,在发病24h内给药部效率92．3％;血浆纤维蛋白原、血液粘度、血小板聚集率均明显降低（P＜0．05）。结论 降纤酶治疗心源性脑栓塞疗效确切,副作用小,安全可靠。早期、足量使用效果更佳。     

降纤酶治疗肺心病难治性心衰疗效观察

目的　探讨降纤酶治疗肺心病难治性心衰的临床疗效和安全性。　方法　将 64例肺心病难治性心衰患者随机分为治疗组和对照组 ,全部病例按常规治疗 ,治疗组加用降纤酶 5 u加入 0 .9%氯化钠 15 0 ml中静滴 ,每天 1次 ,监测心功能、血氧饱和度及血液流变学指标 ,取治疗 7天后的临床资料进行评价。　结果　临床总有效率治疗组 90 .6% ,明显高于对照组的 68.8% (χ2 =4.73 ,P <0 .0 5 ) ,无严重不良反应 ,治疗前后心功能、血氧饱和度及血液流变学指标比较 ,治疗组优于对照组 ,两组具有显著或非常显著性差异 (P <0 .0 5或 P <0 .0 1)。　结论　降纤酶能明显改善肺心病难治性心衰患者的心、肺功能 ,安全有效     

高压氧与降纤酶综合治疗脑血栓形成42例分析

目的：探讨高压氧与降纤酶结合治疗脑血栓形成的疗效。方法：把124例脑血栓形成患者随机分为A组、B组、C组,A组42例采用高压氧加降纤酶治疗;B组38例采用降纤酶治疗;C组44例采用常见规治疗。并分析和比较3组患者的治疗效果。结果A组治愈率80．36％,同时治疗前后血液流变学检查血浆比粘度、红细胞压积、低切变等差异有非常显著性意义（P＜0．01）;B组治愈率61．3％;C组治愈率52．3％。三组患者治愈率差异有显著意义（P＜0．01）。结论高压氧与降纤酶联合治疗脑血栓形成的效果优于常规组和单纯降纤酶治疗组的治疗效果,并能改善血液粘调度,是治疗脑血栓形成的好方法。     

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。     

降纤酶联合尼莫地平治疗急性脑梗死疗效观察

目的：观察降纤酶联合尼莫地平治疗急性脑梗死的临床疗效及相关生化指标,探讨降纤、抗栓、复流和脑保护在急性脑梗死治疗中的必要性。方法：对符合条件的病例随机分2组,治疗组予降纤酶加尼莫地平治疗,对照组临床疗效及血栓通加胞二磷胆碱治疗,分别对其疗效,血液流变学,凝血酶原时间进行比较。结果：治疗组临床疗效及血液流变学指标改善明显,且无增加副作用。结论：降纤酶有降纤、抗凝、溶栓作用,尼莫地平抑制Ca^2 内流,保护脑细胞,同时有改善血液流变性,两药联合应用治疗急性脑梗死有协同作用,可增加疗效。     

血脂及血液流变学指标与突发性聋患者听力曲线类型的关系及其临床疗效的影响因素分析

摘要 目的：探究血脂及血液流变学指标与突发性聋（SSHL）患者听力曲线类型的关系,并分析临床疗效的影响因素。方法：选取2020年6月-2022年1月我院收治的103例SSHL患者设为SSHL组,另选取103例体检健康者设为健康组,分析两组血脂水平及血液流变学指标,比较不同听力曲线类型的SSHL患者血脂水平及血液流变学指标,Spearman相关分析血脂水平及血液流变学指标与SSHL患者听力曲线类型的关系,单因素和多因素Logistic回归模型分析SSHL患者临床疗效的影响因素。结果：与健康组比较,SSHL组总胆固醇（TC）、三酰甘油（TG）与全血高切、中切、低切粘度及血浆粘度明显增高（P＜0.05）,高密度脂蛋白-C（HDL-C）、低密度脂蛋白-C（LDL-C）差异比较无统计学意义（P＞0.05）。不同听力曲线类型的SSHL患者各项血脂指标比较差异均无统计学意义（P＞0.05）,不同听力曲线类型的SSHL患者各项血液流变学指标比较差异均有统计学意义（P＜0.05）,其中全聋型患者各项血液流变学指标显著高于低频下降型患者（P＜0.05）。血脂四项与SSHL听力曲线类型无显著相关性（P＞0.05）,而血液流变学指标与SSHL听力曲线类型显著相关（P<0.05）。治疗无效组患者双耳患病比例、听力曲线类型为全聋型比例、全血高切粘度、全血低切粘度、血浆粘度显著高于有效组患者（P＜0.05）,多因素Logistic分析结果显示：双耳患病、听力曲线类型为全聋型、血浆粘度增加为SSHL患者治疗无效的危险因素（P＜0.05）。结论：SSHL患者存在血脂及血液流变学异常,血液流变学与SSHL患者听力曲线类型和临床疗效有一定关系,其中双耳患病、全聋型、血浆粘度增加为SSHL患者治疗无效的危险因素,检测血脂和血液流变学对于SSHL诊治具有一定临床指导意义。     

降纤酶佐治肺心病的疗效观察

目的　观察降纤酶佐治慢性肺源性心脏病 (肺心病 )的临床疗效。　方法　 84例肺心病患者随机分为治疗组和对照组各 4 2例。对照组给予常规治疗 ,治疗组在常规治疗的基础上加用降纤酶 ,第 1天 1 0 u,以后每天 5 u,加在生理盐水 1 0 0 ml中静脉滴注 ,连用 1 0天。治疗前后对两组患者进行血气分析以及血常规、肝和肾功能、血液流变学检测 ,并记录临床症状体征。　结果　治疗组显效率 66.7%、总有效率97.6% ,对照组显效率 3 5 .7%、总有效率 85 .7% ,两组比较有显著性差异 (P <0 .0 5 ) ;治疗组治疗后血气分析、血液流变学、血红蛋白 (Hb)等指标较治疗前明显改善 (P <0 .0 0 1 ) ;对照组治疗后除血气分析有显著性差异 (P <0 .0 1 )外 ,其余指标较治疗前无明显变化 (P >0 .0 5 ) ;治疗组治疗后上述指标较对照组更为显著改善 (P <0 .0 1 )。　结论　降纤酶佐治肺心病能迅速控制病情 ,疗效显著 ,值得临床推广应用     

降纤酶联合尼莫地平治疗椎基底动脉系TIA30例分析

目的：观察降纤酶联合尼莫地平对椎基底动脉系一过氧缺血（TIA）发作的疗效。方法：将60例椎基底动脉系TIA患者随机分为降纤酶加尼莫地平治疗组和培他啶对照组各30例。结果：治疗组治疗后第1天、第3天终止发控制率分别为60．3％和90％,均显著高于对照组的16．6％和50％（P＜0．01）。治疗组治疗后血液粘度及纤维蛋白原明显降低。结论：降纤酶联合尼莫地平治疗椎基底动脉系TIA有良好的疗效,对预防其进展及脑梗死有明显的作用。     

降纤酶与尼莫地平治疗脑梗死的疗效比较

目的 观察纤纤酶对急性脑梗死患者血浆纤维蛋白原的变化,探讨溶栓与一般离梗死的临床效果。方法 治疗组静脉滴注降纤酶,对组一胸脉滴注尼莫地平。两组分别于用药前,治疗第1天、第7天、第14天测定纤维蛋白原、凝血酶原时间、肝肾功能、神经功能缺损评分及头颅CT。治疗14天进行疗效评定。结果 治疗组治疗前后比较血浆纤维蛋白原明显降低,对照组无明显变化,两组治疗前后比较凝血酶原时间均延长,组临床疗效明显优于对照组（P＜0.025）。结论 降纤酶对血浆纤维蛋白原有明显降低作用,可起到直接溶解和预防血栓形成,是治疗和预防脑梗死的有效药物。     

A Unique Protease Cleavage Site Predicted in the Spike Protein of the Novel Pneumonia Coronavirus (2019-nCoV) Potentially Related to Viral Transmissibility

正Dear Editor,In December 2019, a novel human coronavirus caused an epidemic of severe pneumonia(Coronavirus Disease 2019,COVID-19) in Wuhan, Hubei, China(Wu et al. 2020; Zhu et al. 2020). So far, this virus has spread to all areas of China and even to other countries. The epidemic has caused 67,102 confirmed infections with 1526 fatal cases     

Curcuminoids as inhibitors of thioredoxin reductase: A receptor based pharmacophore study with distance mapping of the active site

Curcumin is the yellow pigment of turmeric that interacts irreversibly forming an adduct with thioredoxin reductase (TrxR), an enzyme responsible for redox control of cell and defence against oxidative stress. Docking at both the active sites of TrxR was performed to compare the potency of three naturally occurring curcuminoids, namely curcumin, demethoxy curcumin and bis-demethoxy curcumin. Results show that active sites of TrxR occur at the junction of E and F chains. Volume and area of both cavities is predicted. It has been concluded by distance mapping of the most active conformations that Se atom of catalytic residue SeCYS498, is at a distance of 3.56 from C13 of demethoxy curcumin at the E chain active site, whereas C13 carbon atom forms adduct with Se atom of SeCys 498. We report that at least one methoxy group in curcuminoids is necessary for interation with catalytic residues of thioredoxin. Pharmacophore of both active sites of the TrxR receptor for curcumin and demethoxy curcumin molecules has been drawn and proposed for design and synthesis of most probable potent antiproliferative synthetic drugs.     

Comparative morphology of the carpel in the Liliaceae: Hewardieae, Petrosavieae, and Tricyrteae

The young pistils in the melanthioid tribes, Hewardieae, Petrosavieae and Tricyrteae, are uniformly tricarpellate and syncarpous. They lack raphide idioblasts. All are multiovulate, with bitegmic ovules. The Petrosavieae are marked by the presence of septal glands and incomplete syncarpy. Tepals and stamens adhere to the ovary in the Hewardieae and the Petrosavieae but not in the Tricyrteae. Two vascular bundles occur in the stamens of the Hewartlieae and Tricyrtis latifolia. Ventral bundles in the upper part of the ovary of the Hewardieae are continuous with compound septal bundles and placental bundles in the lower part. Putative ventral bundles occur in the alternate position in the Tricyrteae and putative placental bundles in the opposite. position in the Petrosavieae. The dichtomously branched stigma in each carpel of the Tricyrteae is supplied by a bifurcated dorsal bundle.     

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.     

Perinatal Vertical Transmission of Chikungunya Virus in Ruili,a Town on the Border between China and Myanmar

正Dear Editor,Chikungunya virus (CHIKV), an arbovirus in the family of Togaviridae, genus Alphavirus, is transmitted by the A.aegyptii or A. albopictus mosquito, and causes disease in humans characterized by fever, rash, and arthralgia (Silva and Dermody 2017; Suhrbier 2019). It was first reported in 1953 in Tanzania, and caused only a few outbreaks and sporadic cases in Africa and Asia in last century. However, in the epidemic in 2004, CHIKV acquired mutations that conferred enhanced transmission by the A. albopictus mosquito(Schuffenecker et al. 2006). Since then, it has successively caused outbreaks in Africa, the Indian Ocean, South East Asia, the South America, and Europe (Zeller et al. 2016).