肌节

Moreover, chondriosome hypertrophy and vacuolar degeneration were found. The damage lessened in SVitC and LVitC groups. Both myofilaments and sarcomeres in IVIG and IVIG+VitC groups were almost normal, and the chondriosome was normal.

6心肌的电镜检测：对照组心肌肌丝排列紊乱，肌节断裂严重，线粒体肥大，并出现空泡变性；大、小剂量VitC组病变比对照组有所减轻；IVIG组和IVIG+VitC组肌丝排列紊乱明显减轻，肌节断裂比对照组减少，线粒体基本正常。

The left ventricular internal dimension at end diastole, interventricular septal thickness at end diastole and left ventricular posterior wall thickness at end diastole were measured in the parastemal long axis view by transthoracic two-dimensional echocardiography, and to calculate left ventricular ejection fraction with Teichholtz formula and left ventricular mass with modified Devereux formula, left ventricular mass index=LVM/body surface area. From the apical four chamber and two chamber view, the basical segment and middle segment of interventricular septal, left ventricular lateral wall, anterior wall and inferior wall were obtained by tissue Doppler imaging, Regional left ventricular relaxation asynchrony index was calculated.

应用二维超声心动图在胸骨旁左心室长轴观测量左心室舒张末期内径、室间隔和左心室后壁舒张末期厚度，采用Teichholtz公式计算左心室射血分数，采用Devereux校正公式计算左心室心肌质量，左心室心肌质量指数=左心室心肌质量/体表面积；在心尖四腔心和心尖两腔心切面，应用组织多普勒成像获取室间隔、左心室侧壁、前壁和下壁的基底段和中间段8个心肌节段沿左心室长轴运动的速度频谱，测算左心室局部心肌松弛不同步性指数(regional left ventricular relaxation asynchrony index， AI)；在心尖四腔心切面，应用彩色M型多普勒超声心动图测量左心室舒张早期血流传播速度。

Strain measures compression and distension of myocardial segments ("deformation imaging") and is reduced in systolic dysfunction .

张力评价的是心肌节段的压缩和扩张，收缩功能不全时张力降低。

The troponin I subunit was used as a molecular marker to explore the relationship between the resting intracellular Ca2+ concentration and myofibril degradation in muscle fibers.

本文以肌钙蛋白抑制亚基(troponin I subunit， TnI)作为肌节蛋白降解的分子标记，探讨舒张期肌纤维内Ca2+浓度升高与肌原纤维降解的关系。

Results myofilament and myotome in fosinpril group were normal on the whole under the electron microscope, but myofilament of the ischemia-reperfusion group was broken and the intercalated disc was not clear.

结果：福辛普利组电镜下肌丝肌节清晰，而缺血再灌注组闰盘结构不清，肌丝断裂。

Many animals form a number of temporary structures along their anterior-posterior axis during embryonic development – somites. Cells in somites differentiate to form the sclerotome, the dermotome and myotome.

脊椎动物在胚胎发育的过程中沿身体前后轴形成一定数目的暂时性结构—体节，随着胚胎的继续发育每个体节分化成为生骨节，生皮节和生肌节，继而生成各种组织。

Striated myofibrils are composed of numerous basic units, sarcomeres, and are responsible for muscle contraction.

横纹肌的肌原纤维是由许多称为肌节的基本结构单位所构成，肌节也是负责肌肉收缩的基本功能单位。

There was a significant inverse correlation between sarcomere length and A/I (r=-0.686, P.05). 4 Relations of the skeletal muscle histological characteristics and meat quality The muscle fibre and the myofibrils diameter were thinner, the muscle fiber density was denser, the sarcomere length was longer and the meat color was redder. The A/I was bigger, the meat color was whiter, contrarily was redder. The right amount of fat content may improve the meat brightness. The muscle fiber diameter and the myofibrils diameter were the biggest factors to influence the skeletal muscle shearing force, their assumed the obvious linear correlation. The muscle fiber density influence on the shearing force was only inferior to the muscle fiber and myofibrils diameter. Mensurate the IFA from tectology angle may reflect in intramuscular fat content. However intramuscular fat was not enough to carry weight on the shearing force, it may mostly affected on the smack, but not the tenderness expression.

猪骨骼肌组织学特性与肉质性状的关系肌纤维和肌原纤维直径越小、肌纤维密度越大、肌节长度越长，肉色鲜红；肌节中暗带比例越大，肉色偏白，而明带比例大，肉色偏红；适量的脂肪含量可以改善肉的亮度；肌纤维直径和肌原纤维直径对骨骼肌剪切力的贡献率最大，呈明显的线性相关，肌纤维密度对剪切力的贡献率仅次与肌纤维和肌原纤维直径；从组织形态学角度测定肌内脂肪面积比一定程度上可以反映肌肉内的脂肪含量，而肌内脂肪对肌肉剪切力的贡献率比较微弱，对肉食用品质的影响可能更多表现在改善肉的风味，而不是嫩度的表达。

The endurance abilities of the embryos of sea perch, flounder and turbot at different developing stages to vitrification solutions were studied. The result showed that sea perch at tail-bud stage, heart-beating stage and pre-hatching stage had more endurance abilities to VSD2, flounder at 4-5 somites, 16-20 somites and tail-bud stage had more endurance abilities to PM3, and turbot at 4-5 somites, 16-20 somites and tail-bud stage had more endurance abilities to PMP1. The feasible equilibration time of three marine fish embryos in vitrification solutions was determined, which guided the dealing process before freezing.

对花鲈、牙鲆、大菱鲆三种鱼类不同时期胚胎分别在玻璃化液中的适应性进行了研究，发现花鲈尾芽胚、心跳胚和出膜前期胚对VSD2的耐受能力较强；牙鲆4-5以肌节胚、16-20对肌节胚、尾芽胚对PM3的耐受能力较强，大菱鲆4—5对肌节胚、16—20对肌节胚、尾芽胚对PMP1的耐受能力较强，较适合于进行玻璃化液处理和冷冻保存；并且确定了三种鱼类各时期的胚胎在玻璃化液中的适宜平衡时间，为胚胎在玻璃化液中处理和冷冻提供了一定的参数。

Of 15 stenotic coronary arteries(14 occluded) with wellestablished collateral vessels, 14 displayed high signal intensities,while of the other 25 vessels (1 occluded) without any collateral vessels, only 11 had high signal intensities within the related segments.

延迟扫描序列显示其中16例的25支(62.5%)心肌节段呈高信号。16例中11例临床诊断心绞痛患者延迟扫描阳性。15支狭窄冠状动脉(11支闭塞)有侧支循环形成，延迟扫描显示14支相应心肌节段阳性；25支狭窄冠状动脉(1支闭塞)无侧支循环，11支相应心肌节段呈高信号，两者延迟扫描阳性率差异有显著性意义(Fisher精确检验P＜0.001)。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐