vasoactive

简明释义

英[ˌveɪzəʊˈæktɪv]美[ˌveɪzoʊˈæktɪv;ˌvæsoʊˈæktɪv]

adj. 血管活性的；作用于血管的

英英释义

单词用法

同义词

反义词

例句

1.Background: Chronic urticaria is a common cutaneous disorder induced by vasoactive mediators such as histamine released from mast cells.

背景：慢性荨麻疹是皮肤科常见疾病之一，由肥大细胞脱颗粒释放组胺等血管活性介质引起。

2.Objective: To study the effects and mechanism of radiation on various kinds of vasoactive substances.

目的：观察辐射对血管活性物质的影响及其机制、意义以探讨辐射防治再狭窄的机制。

3.Objective To investigate the effects of several vasoactive peptides on the development of restenosis.

目的研究血管活性肽在血管再狭窄形成中的作用。

4.CONCLUSION Penehvclidine Hydrochloride would be one of the ideal vasoactive drugs in treatment for septic shock.

结论长托宁是脓毒性休克患者较理想的血管活性药。

5.Angiotensin II (Ang II) is a vasoactive peptide hormone that regulates blood pressure as well as fluid and electrolyte balance.

血管紧张素ii是心血管系统的重要活性物质，起着调节机体水、电解质平衡，维持机体正常血压等作用。

6.Vasoactive Intestinal Peptide (VIP), Rabbit anti-Human; paraffin.

血管活性肠肽(VIP)，兔抗人；石蜡切片。

7.Objective: To study the effects of vasoactive intestinal peptide (VIP) on blood stream of portal collateral vessels in patients with cirrhosis.

目的：探讨肝硬化患者血浆血管活性肠肽（VIP）对门脉侧枝循环血流的影响。

8.In cases of shock, vasoactive agents are often required to stabilize the patient.

在休克的情况下，通常需要使用血管活性药物来稳定病人。

9.Certain vasoactive substances can cause vasodilation and lower blood pressure.

某些血管活性物质可以导致血管扩张并降低血压。

10.The doctor administered a vasoactive drug to improve blood flow during the surgery.

医生在手术中使用了血管活性药物以改善血流。

11.The vasoactive properties of this medication make it effective in treating heart failure.

这种药物的血管活性特性使其在治疗心力衰竭方面有效。

12.The nurse monitored the patient's response to the vasoactive infusion closely.

护士密切监测病人对血管活性输注的反应。

作文

The human body is a complex system that relies on various mechanisms to maintain homeostasis. One crucial aspect of this system is the regulation of blood flow, which is significantly influenced by substances known as vasoactive agents. These agents play a vital role in the cardiovascular system by causing changes in the diameter of blood vessels, thereby affecting blood pressure and distribution of blood to different organs. Understanding how vasoactive substances function can provide insights into numerous medical conditions and treatments.To begin with, vasoactive agents can be either vasodilators or vasoconstrictors. Vasodilators are substances that relax the smooth muscles in blood vessel walls, leading to an increase in the diameter of the vessels. This widening allows more blood to flow through, which can decrease blood pressure and improve oxygen delivery to tissues. Common examples of vasodilators include nitric oxide, prostaglandins, and certain medications used to treat hypertension.On the other hand, vasoconstrictors are substances that cause the blood vessels to narrow, which can increase blood pressure and redirect blood flow to essential organs during times of stress or injury. Hormones such as adrenaline and angiotensin II are well-known vasoactive agents that trigger vasoconstriction, playing a critical role in the body's response to acute stressors.The balance between these two types of vasoactive agents is essential for maintaining cardiovascular health. An imbalance can lead to various health issues, including hypertension, heart failure, and even shock. For instance, chronic high levels of vasoconstrictors can lead to sustained high blood pressure, which increases the risk of heart disease and stroke. Conversely, excessive vasodilation can result in hypotension, which may lead to inadequate blood flow to vital organs.Research into vasoactive substances has also paved the way for new therapeutic strategies. For example, understanding the mechanisms behind nitric oxide's action has led to the development of medications that mimic its effects, providing relief for patients with angina or heart failure. Additionally, the manipulation of vasoactive pathways can be utilized in critical care settings, where rapid changes in blood flow are necessary to stabilize patients in shock or after major surgery.Moreover, the study of vasoactive agents extends beyond traditional cardiovascular medicine. In recent years, researchers have explored their roles in other physiological processes, such as inflammation and immune responses. Certain vasoactive substances can influence the permeability of blood vessels, allowing immune cells to reach sites of infection or injury more effectively. This intersection of vascular biology and immunology highlights the importance of vasoactive agents in maintaining overall health and responding to disease.In conclusion, vasoactive agents are integral to the regulation of blood flow and blood pressure within the human body. Their diverse functions and interactions underscore the complexity of the cardiovascular system and its response to various physiological demands. As research continues to unravel the intricacies of these substances, we gain a deeper understanding of their potential in both therapeutic applications and the management of diseases. By appreciating the role of vasoactive agents, we can better comprehend the delicate balance required for optimal health and the innovative approaches being developed to address cardiovascular and systemic disorders.

人体是一个复杂的系统，依赖各种机制来维持内环境的稳定。其中一个关键方面是血流的调节，这在很大程度上受到称为 vasoactive 物质的影响。这些物质在心血管系统中发挥着至关重要的作用，通过改变血管的直径，从而影响血压和不同器官的血液分配。理解 vasoactive 物质的功能可以为许多医学条件和治疗提供见解。首先， vasoactive 物质可以是血管扩张剂或血管收缩剂。血管扩张剂是指放松血管壁平滑肌的物质，从而导致血管直径增加。这种扩张使更多的血液流动，从而可以降低血压并改善组织的氧气供应。常见的血管扩张剂包括一氧化氮、前列腺素以及用于治疗高血压的某些药物。另一方面，血管收缩剂是指使血管变窄的物质，这可能会增加血压，并在压力或损伤时将血流重定向到重要器官。肾上腺素和血管紧张素 II 等激素是著名的 vasoactive 物质，它们触发血管收缩，在身体对急性压力源的反应中发挥关键作用。这两种类型的 vasoactive 物质之间的平衡对于维持心血管健康至关重要。失衡可能导致各种健康问题，包括高血压、心力衰竭甚至休克。例如，慢性高水平的血管收缩剂可能导致持续的高血压，从而增加心脏病和中风的风险。相反，过度的血管扩张可能导致低血压，可能导致重要器官的血流不足。对 vasoactive 物质的研究也为新的治疗策略铺平了道路。例如，了解一氧化氮作用机制的研究促成了模仿其效果的药物的开发，为心绞痛或心力衰竭患者提供了缓解。此外，操控 vasoactive 通路可以在危重护理环境中使用，在这些情况下，需要快速改变血流以稳定处于休克或重大手术后的患者。此外，对 vasoactive 物质的研究超越了传统的心血管医学。近年来，研究人员探讨了它们在其他生理过程中的作用，例如炎症和免疫反应。某些 vasoactive 物质可以影响血管的通透性，使免疫细胞能够更有效地到达感染或损伤部位。血管生物学与免疫学的交集突显了 vasoactive 物质在维持整体健康和应对疾病中的重要性。总之， vasoactive 物质是调节人体内血流和血压的关键。它们多样的功能和相互作用强调了心血管系统的复杂性及其对各种生理需求的反应。随着研究的不断深入，我们对这些物质的潜力有了更深刻的理解，无论是在治疗应用还是疾病管理方面。通过认识 vasoactive 物质的作用，我们可以更好地理解维持最佳健康所需的微妙平衡，以及正在开发的创新方法来应对心血管和全身性疾病。