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相关概念视频

Allergic Drug Reactions01:27

Allergic Drug Reactions

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Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
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Allergic Reactions02:06

Allergic Reactions

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Hypersensitivities01:30

Hypersensitivities

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Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
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Cross-reactivity00:42

Cross-reactivity

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Antibody Structure01:10

Antibody Structure

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Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
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Upper Respiratory Drugs: First and Second-Generation Antihistamines01:15

Upper Respiratory Drugs: First and Second-Generation Antihistamines

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Antihistamines are a class of drugs widely used to alleviate the symptoms of allergies, such as sneezing, itching, and nasal congestion. They work by inhibiting the actions of histamine, which is released by immune cells in response to allergenic substances or tissue injuries.
Histamine binds to specific receptor sites, known as H1 receptors, on tissue cells, triggering inflammation and swelling. Antihistamines combat these effects by competing with histamine for these receptor sites. By...
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相关实验视频

Updated: May 31, 2025

Basophil Activation Test for Allergy Diagnosis
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药物过敏 药物过敏 药物过敏

Samira Jeimy1, Tiffany Wong2, Moshe Ben-Shoshan3

  • 1Division of Clinical Immunology and Allergy, Department of Medicine, Western University, London, ON, Canada. samira.jeimy@lhsc.on.ca.

Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology
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此摘要是机器生成的。

药物过敏是一种药物不良反应 (ADR),呈现出各种症状,使得诊断变得困难. 过敏学家的及时诊断和管理对于患者的福祉和有效治疗至关重要.

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科学领域:

  • 临床免疫学临床免疫学
  • 药理学 药理学是指药理学的学科.
  • 过敏和免疫学 过敏和免疫学

背景情况:

  • 药物过敏涉及免疫介导的过敏反应 (HSR),其临床表现各异.
  • 药物不良反应 (ADRs) 影响生活质量,延迟治疗,增加发病率/死亡率.
  • 药物过敏的诊断是具有挑战性的,因为症状的多样性.

研究的目的:

  • 为了提供对药物过敏的全面概述.
  • 概述疑似药物诱导过敏反应的诊断策略.
  • 详细说明常见药物过敏的管理方法.

主要方法:

  • 对有关药物过敏诊断和管理的现有文献的审查.
  • 重点是临床病史,体检和诊断测试 (皮肤,体外,药物挑战).
  • 讨论治疗策略,包括避免使用药物,替代药物和降低敏感性.

主要成果:

  • 准确的诊断依赖于详细的病史和有针对性的测试.
  • 避免使用毒品是主要的管理策略.
  • 在特定情况下,替代药物和无敏化是关键.

结论:

  • 如果怀疑药物过敏,建议转诊过敏专家.
  • 有效的管理涉及准确的诊断,适当的药物替代,并考虑交叉反应.
  • 特殊的治疗方法,如上腺素用于过敏反应和脱敏,在危急情况下至关重要.