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Muscle spindles running parallel to intrafusal muscle fibers are sensors for muscle length, whereas golgi tendon organs sense muscle tension. Nuclear bag fibers convey information concerning acceleration and nuclear chain fibers respond o sustained lengthening.

平行运作中的肌梭对肌梭内肌肉纤维是肌长的感应器,另一方面,哥耳奇氏腱器官感应肌肉张力,核袋纤维传达有关加速的讯息,而核鍊纤维对支撑长度起反应。

On experimental day , the rats were intratracheally instilled with bleomycin(5mg/kg body weight)or sterile saline, and then treated with the Fluvastain and saline until they were killed .5 rats of every group were executed in 7,14,28,42 day. Immunohistochemistry and Westernblotting were used to measure the expression of TGF-β, ERK_(1/2) p-ERK protein.

本实验利用博莱酶素诱导大鼠肺间质纤维化,以氟伐他汀为代表研究他汀类药物对肺纤维化大鼠模型的干预作用,并通过观察氟伐他汀对ERK信号通路中重要调节酶ERK_(1/2)的表达及活化的影响,探索肺纤维化的信号传导机制,并为临床提供新的治疗思路。

Objectives To study the expressions of STAT1 and PDGF in lung tissue of pulmonary fibrosis model induced by bleomycin in rats, and discuss the possible mechanism.Methods Thirty Wistar rats were randomly divided into two groups (15 in each group), they were bleomycin group and control group.①The BLM group was intratracheally instilled with belomycin (5mg/kg);② NS group was intratracheally instilled with saline (5mg/kg).

目的 观察肺纤维化鼠肺组织信号转导和转录活化因子1(STAT1)和血小板源性生长因子表达的变化,探讨其在肺纤维化的作用机制方法 30只Wistar大鼠随机分博莱霉素组和对照组,①BLM组:气管内灌注BLM(5mg/kg)诱导肺纤维化;②NS组:气管内灌注NS。

The results indicate that polyborazine precursor prepared at 150℃ for 10 h and propylamine/isopropylamine molar ratio 2:1, could possess nearly linear molecule skeleton and he prone to melt spinnability. When melt at 90℃, the precursor fibers are prepared with average diameter 10-20μm and BC1.27 N1.52 H structure. After curing process and sintered in NH3 at 1200℃, the near-stoichiometric BN fibers was obtained, which proved this precursor is apt for preparation of BN fibers.

结果表明,当正丙胺/异丙胺摩尔比为2:1,聚合温度为150℃,反应时间为10h时,合成产物具有近似线性分子结构,熔点为90℃,具有良好的成丝性,可获得平均直径10~20μm,组成为BC1.27N1.52H的先驱体纤维,先驱体纤维再经不熔化处理及1200℃氨气高温锻烧等工艺可获得近化学计量比的氮化硼纤维

Regarding to test method standard, the setting of Chinese woolen standard is not systemic. For instance, the amount of test method for all kinds of woolen fiber quantitative analysis is far more numerous in China and the principles of the standards are iterant.

国内标准中,各类纤维定性定量分析(尤其是各类毛纤维的定量分析)方法标准以及毛纤维的某些测试方法标准的数量多,内容却分散或重复;毛织物产品标准按生产工艺与织物成分划分,同类织物间考核要求重复,考核项目多,标准格式的兼容性差。

Silicate Aluminum refractory fiber paper are made from ceramic fiber, adding some organic binder,with machine-made or hand-made into lamellate refrac-tory fiber products (coil or non-coil).

硅酸铝耐火纤维纸是以硅酸铝耐火纤维为原料,添加适量的结合剂,经过机制或瓦工工艺制成薄型的耐火纤维制品,有卷材和非卷材两种。

Bamboo first crystallizes then lignifies during bamboo shoot growth and basically forms crystal structure in one month. 1-year-old bamboo culm ends growth and its height,thickness, volume almost change little, but culm tissue is small and tender and there is more water and less substance in it. Bamboo crystal proportion keeps invariable during this period.2-year-old bamboo culm begin to lignify,its cellulose proportion debases and its crystal proportion decreases. Bamboo lignin debases, crystal proportion changes a little in the end of this period.Many-old-year bamboo culm crystal proportion is almost invariable. Freaky bamboo cell wall crystal region's thickness is less than normal bamboo's. Bamboo cross section crystal area and the ratio of long axis to short axis are less than normal bamboo's,and roundness,irregular index, the fiber cap density per unit area increase more than normal bamboo's.

竹笋生长阶段是先结晶后木素化的过程,一个月内细胞壁结晶组织基本形成;2)一年生竹材的植株秆茎生长结束,秆茎的高度、粗度和体积变化不大,但秆茎的组织幼嫩,含水量高,干物质少,竹材结晶度基本不变;3)二年生竹材的植株开始木质化,纤维素比例降低,结晶度减少,到后期竹子木质化降低,竹材结晶度变化不大;4)多年生竹材的结晶度没有太大的变化,结晶度大小处于波动状态;5)畸形竹材纤维帽细胞壁结晶区的厚度比正常竹小,其横截面结晶区的面积、纤维帽长轴与短轴比有所减少,而圆形度、异型指数有所加大,单位面积纤维帽的密度增大。

At 14 days after sciatic nerve torsion injury, all rats were anaesthetized again and the distal section of sciatic nerve was obtained and cut into slices, meanwhile the cross sectional area, the density and size frequency distribution of medullated fibers, as well as the number of medullated fibers in each nerve were determined.

坐骨神经捻挫损伤后14 d,全部动物再次麻醉,取捻挫部位远端坐骨神经制备切片,测量并计算神经横截面积,有髓纤维密度和有髓纤维大小频率分布和每根神经的有髓纤维数目。

Objective To investigate the characteristics of bone benign fibrous histocytoma, nonossifying fibroma and metaphyseal fibrous defect.

目的 探讨骨良性纤维组织细胞瘤、非骨化性纤维瘤及干骺端纤维性缺损的特殊表现。

Rat dermal fibrobalasts and human neofetus dermal fibroblasts were cultured in vitro to evaluate the biocompatibility of the chitosan films.

为考察壳聚糖对皮肤成纤维细胞的相容性,采用流延法制备了纯壳聚糖膜和含甘油的壳聚糖膜,并在所制备的壳聚糖膜上进行了大鼠皮肤成纤维细胞和人胎儿皮肤成纤维细胞的体外培养。

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