氯吡格雷联合拜阿司匹林治疗老年急性脑梗死疗效观察

目的 探讨氯吡格雷联合拜阿司匹林治疗老年急性脑梗死的疗效和安全性.方法 120例急性脑梗死随机分为三组.治疗组40例,氯吡格雷组40例,拜阿司匹林组40例.在常规治疗基础上,治疗组加用氯吡格雷和拜阿司匹林,氯吡格雷组加用氯吡格雷,拜阿司匹林组加用拜阿司匹林治疗.治疗14d后,观察三组用药前后疗效及安全性.结果 治疗组能明显改善脑梗死局灶神经功能缺损症状(P＜0.05),疗效优于氯吡格雷组和拜阿司匹林组;三组对出凝血指标无明显影响(P＞0.05).结论 氯吡格雷联合拜阿司匹林治疗急性脑梗死安全有效,并能明显改善急性脑梗死患者的局灶神经功能缺损症状,效果优于单独应用氯吡格雷或拜阿司匹林.     

氯吡格雷与阿司匹林联用治疗脑梗死的效果观察

目的观察氯吡格雷联合阿司匹林治疗脑梗死的临床效果。方法选取脑梗死患者70例,随机分为观察组(35例)和对照组(35例),观察组给予氯吡格雷联合阿司匹林治疗,对照组单独给予阿司匹林治疗,观察2组总有效率及治疗前后实验室指标。结果观察组治疗后基本痊愈6例,显效17例,有效10例,总有效率94.29%;对照组基本痊愈2例,显效11例,有效8例,总有效率60.00%,观察组总有效率明显高于对照组,差异有统计学意义(P0.05)。治疗30d后观察组血小板(PLT)、血小板聚集率(PA)及全血黏度(高切、低切)指标均明显低于对照组,差异有统计学意义(P0.05)。结论氯吡格雷联合阿司匹林治疗脑梗死临床效果显著,值得临床推广。     

氯吡格雷联合阿司匹林治疗短暂性脑缺血发作的疗效观察

目的探讨氯吡格雷联合阿司匹林治疗短暂性脑缺血发作(TIA)的效果及安全性。方法选取2012-01-2016-01在中信中心医院内科治疗的116例TIA患者,随机分为对照组和观察组各58例。2组均给予降糖、降压等常规治疗,对照组在此基础上口服阿司匹林;观察组在常规治疗基础上给予氯吡格雷和阿司匹林,2组均连续服用4周,比较治疗前后2组血液流变学指标及不良反应情况,并随访6个月观察2组治疗有效率。结果观察组治疗有效率为96.55%明显高于对照组84.48%(P0.05);治疗后,2组血液流变学指标均较治疗前明显改善(P0.05),观察组全血黏度低切、全血黏度高切、血浆黏度及纤维蛋白含量均明显低于对照组(P0.05);观察组脑梗死发生率1.72%明显,低于对照组12.07%(P0.05),观察组不良反应率5.17%,与对照组6.90%比较无明显差异(P0.05)。结论氯吡格雷联合阿司匹林治疗短暂性脑缺血发作患者能够有效改善患者的血流指标,降低脑梗死发生率,效果显著且安全可行。     

氯吡格雷联合阿司匹林治疗急性脑梗死的疗效观察

目的观察急性脑梗死患者联合应用氯吡格雷(波立维)、阿司匹林抗血小板凝聚治疗的临床效果,旨在为急性脑梗死的治疗提供参考。方法选取我院2013-06—2014-06收治的急性脑梗死患者150例为研究对象,随机分为观察组、对照组各75例。2组入院后均行基础治疗,观察组联合应用氯吡格雷、阿司匹林进行抗血小板凝聚治疗;对照组在基础治疗外单独应用阿司匹林抗血小板凝聚治疗,对比2组临床疗效和血小板凝聚率。结果观察组临床疗效和血小板聚集率方面均显著优于对照组(P0.05)。结论氯吡格雷联合阿司匹林治疗急性脑梗死的疗效显著,可改善早期患者的神经功能缺损症状,有效抑制血小板凝聚,值得临床推广应用。     

阿司匹林联合氯吡格雷双抗对短暂性脑缺血发作的应用价值

目的评价阿司匹林联合氯吡格雷双抗对短暂性脑缺血发作(TIA)的应用价值。方法将96例TIA患者随机分为2组,对照组(n=48)给予单用阿司匹林,观察组(n=48)给予阿司匹林+氯吡格雷双抗治疗,比较2组临床效果。结果观察组的临床总有效率高于对照组(P0.05);2组不良反应发生率差异无统计学意义(P0.05);观察组随访1a的复发率显著低于对照组(P0.05)。结论阿司匹林+氯吡格雷双抗治疗TIA的疗效显著,能够有效改善患者血流动力学,安全性较好且近期随访复发率较低,具有较高的临床应用价值。     

氯吡格雷联合阿司匹林在急性脑梗死治疗中的疗效评定

目的探讨氯吡格雷联合阿司匹林在急性脑梗死治疗中的临床疗效。方法将80例急性脑梗死患者按照随机数字表法分为2组,对照组40例给予阿司匹林治疗,观察组在对照组治疗的基础上加用氯吡格雷治疗,治疗2周后比较2组临床疗效、神经功能缺损评分、血小板抑制率及溶酶体颗粒膜糖蛋白(CD63)、α颗粒膜糖蛋白(CD62P)表达水平。结果观察组临床疗效显著优于对照组,差异有统计学意义(Z=2.159,P0.05);治疗第1、2周时,观察组神经功能缺损评分及CD63、CD62P表达水平均低于对照组,AA、ADP均高于对照组,差异有统计学意义(P0.05)。结论氯吡格雷与阿司匹林联合应用提高了急性脑梗死患者临床疗效和神经功能,抑制了血小板聚集和血小板活化,值得临床重视。     

氯吡格雷 拜阿司匹林双抗联合降脂治疗急性腔隙性梗死的疗效

目的观察氯吡格雷、拜阿司匹林双抗联合降脂治疗急性腔隙性梗死的临床效果及安全性。方法急性腔隙性梗死患者126例,随机分为观察组与对照组,在降脂治疗基础上,对照组使用拜阿司匹林治疗,观察组使用氯吡格雷/拜阿司匹林治疗,对比观察临床效果及安全性。结果观察组显效率与总有效率明显高于对照组,出血危象发生率明显低于对照组,差异有统计学意义(P0.05);2组不良反应率、血小板计数、凝血酶原时间、活化凝血酶原时间等指标均无明显差异(P0.05)。结论氯吡格雷、拜阿司匹林联合降脂治疗急性腔隙性梗死,具有理想的临床疗效与良好的安全性。     

阿司匹林联合氯吡格雷治疗急性大动脉粥样硬化性脑梗死患者的疗效

目的探讨阿司匹林联合氯吡格雷治疗急性大动脉粥样硬化性脑梗死的疗效。方法将我院收治的134例急性大动脉粥样硬化性脑梗死患者随机分为对照组(67例)与观察组(67例)。所有患者均接受吸氧、降低颅内压、改善脑循环、预防感染等基础治疗。在上述治疗基础上,对照组接受阿司匹林治疗,观察组接受阿司匹林联合氯吡格雷治疗。结果治疗前2组美国国立卫生院神经功能缺损量表(NIHSS)评分相比差异无统计学意义(P0.05);治疗后,观察组患者NIHSS评分显著低于对照组(P0.05)。观察组治疗效果显著优于对照组(P0.05)。2组患者不良反应发生率相比差异无统计学意义(P0.05)。结论阿司匹林联合氯吡格雷治疗急性大动脉粥样硬化性脑梗死的疗效确切,且安全可行。     

氢氯吡格雷联合拜阿司匹林治疗脑梗死的疗效及安全性评价

目的探讨氯吡格雷联合拜阿司匹林治疗急性脑梗死的临床疗效及不良反应情况。方法选取2012-03—2014-05我院收治的急性脑梗死患者168例,随机分为对照组和观察组各84例,对照组在常规治疗的基础上给予拜阿司匹林治疗,观察组在对照组治疗的基础上加用氯吡格雷联合治疗。2组患者治疗后进行神经功能缺损评定,对比疗效及不良反应发生情况。结果对照组总有效率71.43%%,观察组为90.48%,观察组治疗效果显著优于对照组(P0.05)。2组患者治疗前神经功能缺损评分比较差异无统计学意义(P0.05),治疗后神经功能缺损评分均较治疗前改善,观察组改善情况优于对照组,组间比较差异有统计学意义(P0.05)。治疗期间2组均未出现严重并发症及不良反应。结论急性脑梗死的临床治疗过程中给予氯吡格雷联合拜阿司匹林治疗能显著提高疗效,且不良反应少,患者预后情况好,值得临床推广和应用。     

不同剂量氯吡格雷和阿司匹林在急性脑梗死防治中的作用对比

目的比较不同剂量氯吡格雷与阿司匹林在治疗和预防脑梗死中的临床疗效。方法选取2013-01—2015-01我院收治的急性脑梗死患者80例,随机分为氯吡格雷100mg组、氯吡格雷50mg组与阿司匹林组。治疗后对3组临床疗效进行比较,并对3组治疗前后神经功能缺损(NIHSS)评分情况及不良反应发生情况进行观察。结果与阿司匹林组比较,氯吡格雷100mg组与氯吡格雷50mg组临床总有效率均显著提高(P0.05);其中氯吡格雷100mg组显效率较氯吡格雷50mg组显著提高(P0.05);与治疗前比较,3组治疗后NIHSS评分均明显下降,差异均具有统计学意义(P0.05);其中NIHSS评分降低最为显著的是氯吡格雷100mg组,与其他2组比较,差异均有统计学意义(P0.05);3组不良反应发生率比较均无显著性差异(P0.05)。结论氯吡格雷在急性脑梗死治疗和预防中的临床疗效优于阿司匹林,能显著降低神经功能缺损评分,且氯吡格雷100mg临床疗效优于氯吡格雷50mg。     

Diurnal variation in the concentrations of catecholamines and indoleamines in the median eminence and in the intermediate and posterior lobes of the pituitary gland of the male rat

Diurnal changes in monoamine concentrations were studied in the median eminence and in the intermediate and posterior lobes of the pituitary gland of the male rat. The concentrations of serotonin (5-HT), 5-hydroxyindoleacetic acid (5-HIAA), noradrenaline (NA) and dopamine (DA) were analyzed at 7 time points over a 24-h period. Diurnal variation was analyzed by analysis of variance (ANOVA) with time of day as a class variable as well as by 24 h and 12 h cosine curve fittings. There were marked time-dependent changes in the median eminence concentrations of 5-HT (ANOVA: P = 0.0085), 5-HIAA (P = 0.003) and NA (P = 0.0003). Cosine curves with 24-h periods fit the data points with peaks around 13.00 h. DA levels also varied with an apparent 24-h rhythm in the median eminence, but the changes did not reach the level of significance in the ANOVA. In the intermediate lobe of the pituitary gland, the concentrations of DA varied significantly during the course of the 24-h cycle (P = 0.0011) and were well-fitted to a 24-h cosine wave. The 5-HIAA levels also showed marked diurnal changes (P = 0.025) with an evident 12-h rhythm. In contrast, NA and 5-HT concentrations did not appear to vary during the 24-h cycle. In the posterior lobe of the pituitary gland. DA had a 24-h rhythm (P = 0.0005) similar to the intermediate lobe. NA and indoleamine levels did not show any significant variation.(ABSTRACT TRUNCATED AT 250 WORDS)     

Electrophysiology and analysis of the image of the development of Purkinje cells in culture and in the intact animal

The electrophysiological and morphological properties of the Purkinje cells (P cells) grown in organotypic cultures were studied in HRP intracellulary labelled neurons and compared to Golgi stained P cells from kitten of different ages. The effects of afferent fiber depletions on the final dendritic topological parameters were investigated by 3-dimensional reconstructions and computerized methods. In culture, the P cell dendritic trees always appeared reduced in size when compared to their in vivo counterparts. A discriminant analysis permitted the recognition of 3 populations of cultured P cells according to the type of deafferentation. In intact animals, the dendritic organization appeared biplanar around day 13. These results demonstrate that the presence of all normal inputs is required to achieve the full elaboration and the monoplanar disposition of the P cell dendrites.     

Fighting in the aged male mouse increases the expression of TrkA and TrkB in the subventricular zone and in the hippocampus

In the present study, we investigate the effect of aggressive behavior and release of nerve growth factor (NGF) on brain progenitor cells. We found that the condition of subordination enhances the level of NGF in the subventricular zone and hippocampus whereas dominance elevates brain derived neurotrophic factor (BDNF). It was also found that mRNA-TrkA is over-expressed in the subventricular zone and hippocampus of dominant and subordinate mice, whereas mRNA-TrkB is increased in the subventricular zone of both dominants and subordinates and in the hippocampus of dominant mice. Fighting was also associated with increased presence of proliferating cells in the hippocampus stained with the nuclear marker bromodeoxyuridine (BrdU). Moreover, the brain of subordinate mice displayed tyrosine hydroxylase (TH) immunoreactivity in the wall of the periventricular region of the third ventricles and a marked neuropeptide Y (NPY) presence in the hippocampus co-expressed with BrdU. These results provide additional evidence that agonistic behavior in the aged mouse alters neurotrophin levels and increases brain progenitor cells number. The functional significance of these findings is discussed.     

Imaging and modelling of digestion in the stomach and the duodenum

Gastroduodenal physiology is traditionally understood in terms of motor-secretory functions and their electrical, neural and hormonal controls. In contrast, the fluid-mechanical functions that retain and disperse particles, expose substrate to enzymes, or replenish the epithelial boundary with nutrients are little studied. Current ultrasound and magnetic resonance imaging allows to visualize processes critical to digestion like mixing, dilution, swelling, dispersion and elution. Methodological advances in fluid mechanics allow to numerically analyse the forces promoting digestion. Pressure and flow fields, the shear stresses dispersing particles or the effectiveness of bolus mixing can be computed using information on boundary movements and on the luminal contents. These technological advances promise many additional insights into the mechanical processes that promote digestion and absorption.