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相关概念视频

Allergic Reactions02:06

Allergic Reactions

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Cross-reactivity00:42

Cross-reactivity

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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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Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

402
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
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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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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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[接触过敏原] [接触过敏原]

Kristian Fredløv Mose1, Jeanne Duus Johansen2, Anne Birgitte Simonsen2

  • 1Hudafdeling og Allergicentret, Odense Universitetshospital.

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概括
此摘要是机器生成的。

工业中的新化学物质导致新的接触过敏原. 本综述更新了加速剂,烯酸盐,防腐剂和抗氧化剂等新出现的过敏原,以及已知过敏原的新用途.

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科学领域:

  • 皮肤病学 皮肤病学
  • 毒理学 毒理学 毒理学
  • 职业健康 职业健康 职业健康

背景情况:

  • 有超过5200种接触过敏原的记录.
  • 新化学品和产品的工业使用不断引入潜在的过敏原.
  • 识别新的接触过敏原是一个持续的挑战.

研究的目的:

  • 为新发现的接触过敏原提供最新的概述.
  • 突出新兴的过敏原在特定的类别,如加速器,烯酸盐,防腐剂和抗氧化剂.
  • 讨论以前已知的过敏原的新应用.

主要方法:

  • 最近科学出版物的文献综述.
  • 分析行业报告和监管更新.
  • 综合有关新兴化学物质及其过敏原潜力的信息.

主要成果:

  • 近年来,已经发现了几种新的接触过敏原.
  • 特定的化学品类,包括加速剂,烯酸盐,防腐剂和抗氧化剂,显示出新出现的过敏原问题.
  • 已知的过敏原越来越多地出现在新的产品类型和应用中.

结论:

  • 随着新化学品的不断引入,需要对接触过敏原进行持续监测.
  • 对新出现的过敏原的认识对于职业健康和消费者安全至关重要.
  • 需要进一步的研究,以充分描述与新的和重新出现的接触过敏原相关的风险.