相关实验视频
Updated: Mar 11, 2026

08:02
A Mouse Ear Model for Allergic Contact Dermatitis Evaluation
Published on: March 24, 2023
5.2K
无氧性皮肤炎中的过敏原敏感性:与对照者的区别和呼吸道过敏的预测
International archives of allergy and immunology
|March 9, 2026
概括
过敏原敏感度高,特别是对室内灰尘,在阿托皮性皮肤炎 (AD) 患者中很常见. 了解这些敏感性是管理AD的关键,特别是在像越南这样的地区.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 过敏学 过敏学
背景情况:
- 亚托皮炎 (AD) 是一种普遍的炎症性皮肤疾病,与表皮屏障缺陷和免疫系统失调有关.
- 阿尔茨海默病会影响所有年龄段的人,从儿童到成年人.
研究的目的:
- 为了确定AD患者中常见的过敏原敏感化的流行率.
- 为了比较阿兹海默症患者的敏感度与没有过敏疾病的对照.
- 在AD患者中识别与喘或过敏性鼻炎风险增加相关的过敏原.
主要方法:
- 对452名阿尔茨海默病患者和452名匹配对照进行了横截面研究.
- 使用基于提取物的多重测定测量总和特定IgE水平来评估过敏原敏感性.
- 倾向性得分匹配用于基于年龄和性别的对照选择.
主要成果:
- 超过59%的AD患者对至少一种过敏原表现出敏感性,其中家庭灰尘 (Dermatophagoides pteronyssinus,Dermatophagoides farinae) 是最常见的.
- 蛋和牛奶等食物过敏原在年幼的儿童中更为常见,而呼吸道过敏原在老年人中更为普遍.
- 对特定过敏原 (例如,C. albicans,D. pteronyssinus,猫) 的敏感性在阿兹海默病患者中显著增加,并与呼吸道过敏的风险增加有关.
结论:
- 了解过敏原敏感化模式对于优化阿托皮性皮炎管理至关重要,特别是在越南,家庭灰尘虫敏感性很高.
- 避免过敏原和过敏原特异性免疫疗法可以作为AD的有益的辅助疗法.
- 临床相关性至关重要,因为高敏感率并不总是等同于临床过敏.
相关概念视频
Allergic Reactions
33.1K
Overview
33.1K
Drug Toxicity: Allergic Reactions
84
Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial...
84
Allergic Reactions: Anaphylaxis
103
Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin,...
103
Hypersensitivities
8.0K
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...
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...
8.0K
Allergic Drug Reactions
1.5K
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...
1.5K
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions
109
Delayed-Type Hypersensitivity (DTH), or Type IV hypersensitivity, is a cell-mediated immune response. It occurs when T cells, rather than antibodies, mediate a reaction to specific antigens. It is characterized by a delayed onset (1-2 days) and involves the recruitment of macrophages to the inflammation site.The initiation of a DTH response begins with the sensitization of T cells. During this phase, which lasts at least 1-2 weeks, antigen-specific T cells are activated, clonally expanded, and...
109

