chemotactic

简明释义

英[ˌkeməʊˈtæktɪk]美[keməˈtæktɪk]

adj. 趋药性的；趋化现象的

英英释义

单词用法

同义词

反义词

例句

1.Objective To find if there was monocyte chemotactic abnormality in rapidly progressive periodontitis.

目的研究快速进展性牙周炎患者的外周血单核细胞趋化功能是否异常。

2.The expression of chemokine receptors, the chemotactic capacities, and adhesion molecule expression was modulated by withdrawal of IL 2 and IL 4 from the culture medium.

在体外培养基中，趋化因子受体的表达即趋化运动的能力和粘附分子的表达受IL2和IL4的调节。

3.Objective To study the changes of neutrophil chemotactic index and serum IL-8 contents after cerebral ischemia reperfusion injury in rats.

目的：探讨了血清il - 8和中性粒细胞趋化指数测定在脑缺血再灌注损伤中的变化。

4.AIM To examine the effects of cultured macrophage conditioned media (MCM) on production and gene expression of monocyte chemotactic protein 1 (MCP 1) of human retinal pigment epithelial (HRPE) cell.

目的评价巨噬细胞调理液(MCM)对视网膜色素上皮(RPE)细胞合成单核细胞趋化蛋白-1 (MCP - 1)的作用。

5.They respond chemotactically to histamine, immune complexes, and eosinophil chemotactic factor of anaphylaxis , a substance released by degranulating mast cells.

嗜酸性粒细胞通过趋化作用对过敏反应中的组胺、免疫复合物和嗜酸性粒细胞趋化因子（肥大细胞脱粒肽）做出反应。

6.Objective To compare the chemotactic difference at the level of topographic specificity at different age in SD rats.

目的比较不同年龄大鼠神经趋化解剖特异性的差异。

7.The adhesion ability, the migrated ability and invasive ability were determined with the laminin adhesion test, the chemotactic migration test and the invasion test of reconstituted basement membrane.

用层粘连蛋白粘附测定法、纤粘蛋白趋化迁移测定法和重建基底膜侵袭测定法测定肺癌细胞的粘附、运动和侵袭能力。

8.Monocyte chemotactic protein-1 is an important pro-inflammatory factor, which has a close link with heart failure.

单核细胞趋化蛋白- 1作为重要的促炎因子之一，与心力衰竭的关系十分密切。

9.They also inhibit platelet activation factor and thereby reduce thrombosis, dilate arteries and capillaries, and block the release of chemotactic and inflammatory mediators from phagocytes.

还可以抑制血小板活性因子从而减少血凝，稀释血管及微血管，并阻碍巨噬细胞释放趋化及致炎介质。

10.Researchers discovered that the chemotactic movement of cells is crucial for wound healing.

研究人员发现，细胞的趋化性移动对伤口愈合至关重要。

11.The bacteria exhibited a strong chemotactic response towards the nutrient source.

这些细菌对营养源表现出强烈的趋化性反应。

12.In the immune response, white blood cells use chemotactic signals to locate sites of infection.

在免疫反应中，白血球利用趋化性信号定位感染部位。

13.The chemotactic properties of the molecule were tested in various laboratory conditions.

该分子的趋化性特性在各种实验室条件下进行了测试。

14.The study focused on the chemotactic behavior of certain types of algae in aquatic environments.

这项研究集中于某些类型藻类在水生环境中的趋化性行为。

作文

In the fascinating world of biology, the term chemotactic refers to the movement of organisms or cells in response to chemical stimuli. This phenomenon is crucial for many biological processes, including immune responses, wound healing, and even the behavior of certain microorganisms. Understanding chemotactic responses can provide insights into how cells communicate and navigate their environments, which is essential for maintaining health and responding to disease. For instance, when a pathogen invades the body, immune cells such as neutrophils are rapidly recruited to the site of infection. These cells exhibit chemotactic behavior, moving toward higher concentrations of signaling molecules released by damaged tissues and pathogens. This targeted response is vital for effectively combating infections and ensuring that the body can heal itself. Moreover, chemotactic mechanisms are not limited to immune cells. Many bacteria also utilize chemotactic movement to find nutrients or escape harmful substances. For example, Escherichia coli, a common bacterium found in the intestines, can sense changes in its environment and move toward favorable conditions through a process known as chemotaxis. This ability to detect and respond to chemical gradients is essential for survival and adaptation in various environments. The study of chemotactic behavior has broad implications beyond basic biology. In medicine, understanding how cells migrate in response to chemical signals can help develop therapies for diseases characterized by abnormal cell movement, such as cancer metastasis. Researchers are investigating how to manipulate chemotactic pathways to guide immune cells to tumors, enhancing the efficacy of immunotherapy.Additionally, chemotactic principles are being applied in tissue engineering and regenerative medicine. By creating scaffolds that release specific chemical signals, scientists aim to direct stem cells to migrate and differentiate into the desired cell types for repairing damaged tissues. This innovative approach holds great promise for treating injuries and degenerative diseases.In conclusion, the concept of chemotactic movement is a fundamental aspect of biology that underlies many essential processes in living organisms. From the immune system's response to infections to the behavior of microorganisms and advancements in medical therapies, the study of chemotactic responses continues to reveal the intricate ways in which life adapts and thrives. As we deepen our understanding of these mechanisms, we open new avenues for scientific exploration and potential therapeutic interventions that could improve human health and well-being.

在生物学的迷人世界中，术语化学趋向性指的是生物体或细胞对化学刺激的运动。这种现象对于许多生物过程至关重要，包括免疫反应、伤口愈合，甚至某些微生物的行为。理解化学趋向性反应可以提供关于细胞如何相互通信和导航其环境的见解，这对于维持健康和应对疾病至关重要。例如，当病原体入侵身体时，免疫细胞如中性粒细胞会迅速被招募到感染部位。这些细胞表现出化学趋向性行为，向损伤组织和病原体释放的信号分子的高浓度移动。这种有针对性的反应对于有效对抗感染和确保身体能够自我愈合至关重要。此外，化学趋向性机制并不限于免疫细胞。许多细菌也利用化学趋向性运动寻找营养或逃避有害物质。例如，大肠杆菌，一种存在于肠道中的常见细菌，可以感知环境中的变化，并通过称为趋化性的过程朝向有利条件移动。这种检测和响应化学梯度的能力对于在各种环境中生存和适应至关重要。对化学趋向性行为的研究超越了基础生物学，具有广泛的意义。在医学领域，了解细胞如何响应化学信号迁移可以帮助开发治疗异常细胞运动的疾病，如癌症转移的疗法。研究人员正在调查如何操控化学趋向性通路，引导免疫细胞到达肿瘤，从而增强免疫疗法的有效性。此外，化学趋向性原理正在应用于组织工程和再生医学。通过创建释放特定化学信号的支架，科学家们旨在引导干细胞迁移并分化为所需的细胞类型，以修复受损组织。这种创新的方法对治疗伤害和退行性疾病具有巨大前景。总之，化学趋向性运动的概念是生物学的一个基本方面，支撑着生物体中许多重要的过程。从免疫系统对感染的反应到微生物的行为以及医学疗法的进步，化学趋向性反应的研究继续揭示生命适应和繁荣的复杂方式。随着我们对这些机制理解的加深，我们为科学探索和潜在的治疗干预打开了新的途径，这可能改善人类健康和福祉。