冠心病患者血清尿酸、高敏C 反应蛋白、纤维蛋白原水平变化 的临床研究

目的:观察冠心病患者血清中尿酸、高敏C反应蛋白、纤维蛋白原水平的变化.方法:选取2010年11月至2011年11月于我院就诊的68例冠心病患者(稳定型心绞痛21例,不稳定型心绞痛24例,急性心肌梗死13例)作为研究对象,并选取同期于我院体检中心体检的62例健康人为对照组,检测受试者血清中尿酸、高敏C反应蛋白、纤维蛋白原的水平.结果:研究组患者血清中UA、CRP和FBG水平显著高于对照组(P＜0.05).与稳定型心绞痛组比,不稳定型心绞痛的CRP水平增高(5.34±1.98 mg/L vs.11.36±2.73 mg/L,P＜0.05),急性心肌梗死组的UA (345.63±86.4 μmol/L vs.493.76±101.2 μmol/L,P＜0.05)、CRP (5.34±1.98mg/L vs.21.3±2.24 mg/L,P＜0.05)和FBG(3.86±1.34 g/L vs.6.85±2.36 g/L,P＜0.05)水平显著增高,与不稳定型心绞痛组比,急性心肌梗死组的UA(378.91±89.7 μmol/L vs.493.76±101.2 μmol/L,P＜0.05)、CRP(11.36±2.73 mg/L vs.21.3±2.24 mg/L,P＜0.05)和FBG(4.27±2.08 g/L vs.6.85±2.36 g/L,P＜0.05)水平显著增高(P＜0.05).结论:冠心病患者血清中尿酸、高敏C反应蛋白和纤维蛋白原的水平升高,3个指标可用于评估治疗效果和预后.     

丹蒌片治疗老年性主动脉瓣狭窄的临床疗效分析

目的:探讨丹蒌片对老年性主动脉瓣狭窄患者临床疗效及血清炎症因子水平的影响。方法:选取老年性主动脉瓣钙化患者共34例,将其随机分为丹蒌片治疗组(22例)及对照组(12例)。根据西雅图心绞痛问卷中文版、SF-36生活质量量表、中医临床证候评分比较两组的治疗效果,ELISA检测治疗前后患者血清肿瘤坏死因子α(TNF-α)、白介素6(IL-6)及同型半胱氨酸(HCY)的水平。结果:丹蒌片治疗组患者心绞痛程度及治疗满意度较常规治疗组均有明显统计学差异,丹蒌片可提高病人生活质量,改善中医部分证候,减轻血清炎症因子表达。结论:丹蒌片或可减缓主动脉瓣钙化进展,其原因可能和炎症反应减轻有关。     

酚妥拉明、多巴胺联合心肺复苏对心搏骤停患者的影响

目的:研究酚妥拉明、多巴胺联合心肺复苏对心搏骤停患者的影响。方法:选择2015年2月至2016年4月在我院进行治疗的心搏骤停患者60名,按照治疗方法的不同分为观察组和对照组,对照组使用常规方法治疗,观察组在对照组基础上联合酚妥拉明及多巴胺治疗。观察和比较两组治疗后的临床疗效、生存情况、血清cTnI、CK、CK-MB、MDA、SOD水平和血流动力学参数的变化。结果:治疗后,观察组总病死率20%,明显低于对照组33.33%(P0.05)。观察组心肺复苏后0.5-1h血清c Tn I水平显著高于对照组(P0.05),2-24 h血清cTnI水平显著低于对照组(P0.05);观察组心肺复苏后各时点血清CK、CK-MB水平均显著低于对照组(P0.05);观察组复苏后24 h的MDA、SOD浓度较对照组[(1.86±1.65)μg/L vs(3.81±1.24)μg/L、(6.58±0.95)μg/L vs(3.74±0.56)μg/L](P0.05)。心肺复苏后,观察组患者从第2 h开始MAP值明显高于对照组水平(P0.05);观察组患者CO值及CI值从第6h开始明显升高显著高于对照组水平(P0.05);且观察组患者PCWP值各时段均显著低于对照组(P0.05)。结论:酚妥拉明联合多巴胺用于治疗心搏骤停患者可明显减轻患者心肌损伤,改善其血流动力学及患者预后,提高生存率,且安全性高。     

前列腺素E1治疗慢性乙型肝炎慢加急性肝衰竭早期患者的临床研究

目的:探讨前列腺素E1(PGE1)对早期乙型肝炎慢加急性肝衰竭患者的临床疗效及安全性。方法:采用随机对照方法进行前瞻性试验。将100例早期乙型肝炎慢加急性肝衰竭患者随机分为前列腺素E1治疗组和综合治疗组(对照组),前列腺素E1治疗组在常规内科综合治疗的基础上加用PGE1 10μg治疗,每天1次,疗程4周,综合治疗组为常规内科综合治疗。观察和比较治疗前后两组的肝功能指标水平、消化道和全身症状以及不良反应的发生情况,评价两组的临床疗效。结果:治疗过程中,前列腺素E1治疗组的总有效率为80%,显著优于综合治疗组的62%(P0.05)。治疗过程中,两组患者血清胆红素水平均明显下降,但前列腺素E1治疗组下降幅度较对照组更加明显。治疗第2周时,治疗组和对照组患者血清胆红素水平分别为252±103μmol/L和269±113.2μmol/L(P0.05),4周时,则分别为89.8±53.2μmol/L和114.8±62.5μmol/L(P0.01),显著低于第2周时水平。临床症状好转率和其他化验指标(如ALT、GGT)均较治疗前显著降低,但无统计学差异(P0.05)。前列腺素E1治疗组不良反应的发生率为14%,而综合治疗组未见不良反应发生。结论:PGE1治疗早期乙型肝炎慢加急性肝衰竭患者的疗效明显优于综合内科治疗组,能显著改善肝功能,促进黄疸消退,不良反应少。     

银杏达莫对急性脑梗死患者t-PA, Hcy, MMP-9的影响

目的:研究银杏达莫治疗急性脑梗死的临床疗效及其对患者血清纤维蛋白溶煤原活化剂(t-PA)、同型半胱氨酸(Hcy)、基质金属蛋白酶9(MMP-9)水平的影响。方法:选取2014年3月至2015年3月我院接诊的急性脑梗死患者90例为研究对象并将其随机分为两组。对照组采用常规治疗,观察组采用银杏达莫治疗,观察和比较两组患者治疗后血清t-PA、Hcy、MMP-9水平,神经功能缺损(NIHSS)评分,Barthel指数、脑血流变化和临床疗效。结果:治疗后,观察组总有效率[95.55%(43/45)]显著高于对照组[71.11%(32/45)](P0.05),NIHSS评分低于对照组[(2.83±0.51)%vs(6.91±1.21)%],Barthel指数大于对照组[(82.10±4.03)%vs(64.86±5.39)%](P0.05),血清t-PA水平显著高于对照组[(0.59±0.16)IU·mL~(-1) vs(0.52±0.14)IU·mL~(-1)],血清Hcy、MMP-9水平明显低于对照组[(10.49±1.97)ng/L vs(15.92±2.01)ng/L、(16.35±1.30)mol/L vs(21.54±2.53)mol/L、(159.07±14.53)pg/mL vs(231.34±16.72)pg/mL](P0.05);观察组MCA、PCA显著大于对照组[(49.40±6.30)cm2 vs(41.36±5.76)cm2、(34.86±4.29)cm2 vs(29.76±4.20)cm2](P0.05)。结论:银杏达莫治疗急性脑梗死的临床疗效显著,能够促进神经功能恢复,改善血管内皮功能,降低Hcy、MMP-9水平,有利于患者的预后。     

氯沙坦联合环磷腺苷葡胺对肺心病患者心肺及免疫功能的影响

目的:探讨氯沙坦联合环磷腺苷葡胺对肺心病患者心肺功能和免疫功能的影响。方法:选择2010年9月至2015年9月我院接诊的94例肺心病患者并按随机数表法分为观察组和对照组,每组各47例。对照组给予常规肺心病治疗,观察组在对照组的基础上给予氯沙坦联合环磷腺苷葡胺进行治疗。比较两组治疗前后CO、LVEF、SV、FEV1及FEV1/FV、Ig G、Ig A、补体C3、血清白细胞介素-2(interleukin-2,IL-2)、可溶性白细胞介素2受体(soluble interleukin-2 receptor,s IL-2R)、8-异前列腺素(8-ISO prostaglandin,8-iso-PG)水平的变化以及治疗后的临床疗效。结果:治疗后,观察组CO、LVEF、SV、FEV1及FEV1/FVC水平均显著高于对照组[(5.21±0.27)vs(4.15±0.46),(63.42±6.17)vs(52.37±5.76),(74.68±9.24)vs(64.56±11.73),(1.75±0.27)vs(1.32±0.31),(75.68±10.62)vs(65.49±10.05)](P0.05),血清补体C3高于对照组[(1.34±0.12)g/L vs(1.16±0.10)g/L](P0.05);血清s IL-2R、8-iso-PG水平显著低于对照组[(371.46±161.06)U/ml vs(435.75±152.43)U/ml,(23.58±11.72)ng/L vs(31.08±11.39)ng/L](均P0.05);观察组总有效率高于对照组[(95.74)%vs(78.72)%](P0.05)。结论:氯沙坦联合环磷腺苷葡胺可有效提高肺心病患者心、肺及免疫功能。     

胸腺五肽联合辛伐他汀治疗COPD合并肺动脉高压的疗效及对患者血清PAF-AH、esRAGE、CA125水平的影响

目的:探讨胸腺五肽联合辛伐他汀治疗慢性阻塞性肺疾病(COPD)合并肺动脉高压的疗效及对患者血清血小板活化因子乙酰水解酶(PAF-AH)、内源性分泌型晚期糖基化终末产物受体(esRAGE)、糖类抗原125(CA125)水平的影响。方法:选择2016年1月至2017年12月我院接诊的65例COPD合并肺动脉高压患者,通过随机数表法分为观察组35例和对照组30例。对照组在常规治疗基础上给予辛伐他汀治疗,观察组在对照组基础上给予胸腺五肽治疗,两组均连续治疗4周。治疗后,比较两组血清PAF-AH、esRAGE、CA125水平、免疫功能、肺功能、血气分析指标的变化及不良反应的发生情况。结果:治疗后,观察组血清PAF-AH、esRAGE水平明显高于对照组,而血清CA125水平明显低于对照组[(187.20±15.10)ng/mL vs.(135.13±11.42)ng/mL,(0.32±0.08)ng/L vs.(0.26±0.05)ng/L,(21.06±3.27)U/mL vs.(30.49±4.23)U/mL](P0.05);观察组CD3~+、CD4~+、CD4~+/CD8~+明显高于对照组[(69.56±7.89)%vs.(57.56±6.05)%,(43.30±5.11)%vs.(37.86±4.53)%,(2.14±0.30) vs.(1.82±0.26)](P0.05);观察组血清第一秒用力呼气容积(FEV1)、FEV1/用力肺活量(FVC)明显高于对照组,肺动脉收缩压(PASP)明显比对照组低[(2.17±0.34)L vs(1.84±0.29)L,(67.34±8.28)%vs.(60.37±6.05)%,(36.23±3.15)mmHg vs.(42.85±3.88)mmHg](P0.05);观察组动脉血压分压(PaO_2)明显高于对照组,二氧化碳分压(PaCO_2)明显低于对照组[(89.45±7.40)mmHg vs.(80.23±6.82)mmHg,(33.83±3.11)mmHg vs.(40.02±3.86)mmHg](P0.05)。两组不良反应的总发生率比较差异无统计学意义(P0.05)。结论:胸腺五肽联合辛伐他汀治疗COPD合并肺动脉高压患者效果显著优于单用辛伐他汀治疗,可更有效改善患者肺功能和肺动脉高压状态,其内在机制可能和调节血清PAF-AH、esRAGE、CA125水平及缓解气道炎症反应相关。     

头孢他啶联合氨茶碱治疗慢性阻塞性肺气肿的疗效及对血清IGF-1、α1-AT、PDGF-B水平的影响

目的:探讨头孢他啶联合氨茶碱治疗慢性阻塞性肺气肿(COPD)的临床疗效及对患者血清胰岛素样生长因子-1(IGF-1)、血清α1-抗胰蛋白酶(α1-AT)、血小板衍生生长因子-B(PDGF-B)水平的影响。方法:选择我院2015年4月至2018年4月收治的154例慢性阻塞性肺气肿作为研究对象,采用随机数字表法将其分为观察组与对照组。对照组采用头孢他啶治疗,观察组在对照组基础上加用氨茶碱联合治疗。对比两组患者的临床疗效、治疗前后血清IGF-1、α1-AT、PDGF-B水平的变化及不良反应的发生情况。结果:治疗后,观察组与对照组临床疗效总有效率分别为94.80%和71.43%,观察组显著高于对照组(P0.05);观察组血清IGF-1、PDGF-B水平均显著低于对照组[(110.67±13.58) vs.(143.17±15.74)ng/ml、(128.67±15.33) vs.(247.69±30.17)ng/L],而血清α1-AT水平明显高于对照组[(2.79±0.43) vs.(1.77±0.46)g/L](P0.05);观察组与对照组不良反应率分别为5.19%和50.64%,观察组明显低于对照组(P0.05)。结论:综上所述,头孢他啶联合氨茶碱治疗COPD的临床疗效和安全性均显著优于单用头孢他啶治疗,可能与其有效降低COPD患者血清PDGF-B、IGF-1,明显提高血清α1-AT水平有关。     

地高辛联合左西孟旦治疗扩张型心肌病的疗效及对血清HMGB1、sICAM-1、sST2水平的影响

目的:探讨地高辛联合左西孟旦治疗扩张型心肌病的疗效及对血清高迁移率族蛋白B1(HMGB1)、溶性细胞间粘附分子-1(s ICAM-1)、可溶性ST2蛋白(s ST2)水平的影响。方法：选择2016年2月至2018年2月我院接诊的90例扩张型心肌病患者作为本研究对象,依照随机数表法分为观察组44例和对照组46例,对照组在常规治疗基础上给予左西孟旦治疗,观察组在对照组基础上联合地高辛治疗,两组均连续治疗4周。比较两组的临床疗效、左室射血分数(LVEF)、左室舒张末内径(LVEDD)、血清氨基末端B型钠尿肽前体(NT-proBNP)、HMGB1、s ICAM-1、s ST2水平的变化及不良反应的发生情况。结果:治疗后,观察组临床疗效总有效率为93.18%(41/44),明显高于对照组(76.09%,P0.05);观察组LVEF明显高于对照组,LVEDD、血清NT-proBNP水平均明显低于对照组[(46.50±5.21)%vs.(41.20±4.12)%,(54.94±2.29)mm vs.(59.30±2.38)mm,(494.31±75.95)ng/L vs.(589.56±89.40)ng/L](P0.05);观察组血清HMGB1、s ICAM-1、s ST2水平均明显低于对照组低[(8.42±1.23)pg/mL vs.(13.76±1.70)pg/mL,(122.93±11.03)μg/L vs.(141.58±13.04)μg/L,(0.08±0.02)ng/mL vs.(0.15±0.03)ng/mL](P0.05)。治疗期间,两组不良反应发生率分别为9.09%和6.52%,组间差异无统计学意义(P0.05)。结论:地高辛联合左西孟旦治疗扩张型心肌病患者的效果显著优于单用左西孟旦治疗,其可更有效降低患者血清HMGB1、s ICAM-1、s ST2的表达,改善患者心功能,且安全性高。     

rh-BNP联合阿托伐他汀治疗急性心梗后心衰的临床疗效及对患者血清cTn-I、Myo、CK-MB水平的影响

目的:研究重组人脑利钠肽(rh-BNP)联合阿托伐他汀治疗急性心梗后心衰的临床效果及对患者血清心肌肌钙蛋白(cardiac troponin,cTn-I)、肌红蛋白(Myoglobin,Myo)、肌酸激酶同工酶(CK-MB)水平的影响。方法:选择我院2017年2月～2019年1月收治的72例急性心梗后心衰患者,按随机数字表法分为观察组38例,对照组34例。对照组给予阿托伐他汀治疗,观察组在对照组基础上另加rh-BNP,观察和比较两组的临床疗效,治疗前后血清cTn-I、Myo、CK-MB水平的变化及治疗后不良反应的发生情况。结果:治疗后,观察组总有效率明显高于对照组(P0.05),血清cTn-I、Myo、CK-MB水平均显著低于对照组[(0.23±0.10) vs.(0.16±0.08)、(27.54±3.86) vs.(21.62±2.54)、(70.82±9.25) vs.(61.28±8.33)](P0.05)。观察组治疗后不良反情况总发生率为7.89%,明显低于对照组(26.47%,P0.05)。结论:与单用阿托伐他汀治疗相比,静脉注射rh-BNP联合阿托伐他汀治疗急性心梗后心衰可显著提高临床疗效和安全性,有效减低血清cTn-I、Myo、CK-MB水平。     

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.     

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.     

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.