心脏瓣膜的

It could be a problem to do with the hearts valves, the heart's lining or even the heart's muscles.

这可能是一个问题，是与心脏瓣膜，心脏的面料，甚至心脏的肌肉。

It's a promise has been at least 15 years in the making. Carpentier, having invented bio-engineered heart valves three decades ago, sought next to create the ultimate artificial heart.

那是一个至少经历了十五年发展的承诺， Carpentier 三十年前已发明了通过生物工程加工的心脏瓣膜，下一步将制造最终的人造心脏。

Objective To discuss the etiology of cardiac valve calcification in elderly.

目的 探讨老年人心脏瓣膜钙化的病因。

This book in all 126 chapters, content involves cardiovascular disease foundation, not have achieve video learn, disease of valve of physiological, heart, aorta mixes report outside element of risk of week blood-vessel disease, coronary artery disease, cardiac muscle straightens dead, disease of heart and pericardium and pulmonary circulation disease, cardiac muscle and heart failure,, include 1400 plans, among them 483 are chromophotograph, kinetic draw writes down the radiative a collection of illustrative plates that covers electric physiology draw to write down image of graph, angiography, heart to be short of caustic and blood stream the graph.

该书共126章，内容涉及心血管疾病基础、无创影像学、电生理学、心脏瓣膜病、主动脉和外周血管疾病、冠状动脉疾病危险因素、心肌梗死、心脏和心包以及肺循环疾病、心肌病和心力衰竭、心脏药理学、有创及介入心脏病学等11个部分，包括1400幅图，其中483幅为彩色照片，涵盖电生理描记图、血管造影图像、心脏缺损的放射图谱以及血流动力学描记图等。

Objective To compare the myocardial protection effects of cold blood cardioplegia and cold crystalloid cardioplegia in patients undergoing valve replacement surgery.

目的 比较冷血液停跳液和冷晶体停跳液在心脏瓣膜置换手术中的心肌保护效果。

Next, Professor Saltzman talks about the design and function of some artificial organs, such as lens implants, heart valves and vessels, hip, dialyzer, heart/lung bypass machine, and the artificial heart.

下一步，教授索兹曼有关的设计和一些人造器官，如晶体植入，心脏瓣膜和船只，臀部，透析器，心脏，功能/肺旁路机会谈，人工心脏。

Consisting of fibrous tissue covered by an elastic membrane, the tumor is covered by the endocardium.

乳头状弹力纤维瘤是起源于心内膜的一种良性肿瘤，通常生长于心脏瓣膜上，且发生于瓣膜的心室面。

36 cases severe cardiac valve replacement whose cardio/thorax were 0.68～0.90 measured by sternite, heart function were Ⅲ～Ⅳ grade, average of left ventricle diastole diameterwas 67±9.2mm. All the patients heart function were improved by strict therapy before operate. Selecting best opportunity for operation, by general anesthesia, moderate hypothermia extracorporeal circulation, perfusing heart by cold stop-beating fluid including hypokalium and blood ,and refusing dopamine to maintain haemodynamics after cardiac resuscitation.

36例重症心脏瓣膜置换术病人，X线胸片心胸比0.68～0.90，心功能Ⅲ～Ⅳ级，左室舒张末径平均67±9.2mm，术前均经过严格改善心功能治疗，选择有利的手术时机，采用以芬太尼为主，咪唑安定、异丙酚、异氟醚等为辅助药的全身麻醉，中度低温体外循环，以高钾含血冷停跳液灌注心脏，心脏复苏后静脉输注多巴胺等维持血流动力学稳定。

At the one-cell stage, each embryo was injected with gradient doses of 2-8ng MO. The control morpholino, was purchased from Gene-Tools.To test the knockdown effectiveness of the morpholino, the tbx2-EGFP (enhanced green fluorescent protein) construct was generated. And coinjection of morpholino with mRNA tests its specificity of the morpholino. Overexpression of tbx2 via mRNA microinjection helps us understand gaining function of tbx2. Results The tbx2-EGFP construct tests the knockdown effectiveness of the morpholino. Zebrafish embryos lacking tbx2 function have defects in cardiac contractility, rhythm and morphology in a dose-dependent manner. The embryos with c-MO are normal in development. Coinjection of morpholino with mRNA rescue the phenotype of tbx2 knocking down. The phenotypes include pericardial edema, hypogenetic ventricle, dilation of atria, arrhythmia, bradycardia, asystole, abnormal atrioventricular canal, aberrant valve and blood regurgitation.

结果荧光蛋白融合标记实验验证了tbx2-MO可以很好得阻抑斑马鱼胚胎tbx2的表达，tbx2-MO组胚胎在心脏收缩性、节律和形态学发生上出现了异常，心脏畸形随着注射剂量的增加而出现比较一致的表型，而c-MO组胚胎没有出现明显的畸形；tbx2-mRNA和tbx2-MO的共注射减少了tbx2-MO胚胎心脏畸形的发生率及减轻了心脏畸形的程度，验证了所设计合成的tbx2-MO对tbx2基因的抑制作用具有特异性；tbx2-MO组胚胎心脏缺陷包括心室发育不良、心房扩张、房室管和瓣膜异常以及心率缓慢、心律不齐、心脏停搏、血液返流等，并根据心脏发育异常的程度分为轻、中、重度畸形组tbx2-mRNA基因过表达胚胎没有见到心腔的形成。

A new study shows that the minimally-invasive valve bypass is a safe, effective alternative to conventional valve replacement in high-risk elderly patients with aortic stenosis.

一个新的研究成果显示低损伤瓣膜搭桥是一个安全有效在高风险的高龄主动脉狭窄患者中替代传统的心脏瓣膜置换手术的方式。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。