在急性过敏时显著增加的二胺氧化酶与潜在的克隆性母细胞疾病有关
Matija Rijavec1,2,3, Žan Kogovšek1, Jezerka Inkret4
1University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia.
概括
在克隆性巨细胞疾病 (CMD) 患者的过敏反应期间,二胺氧化酶 (DAO) 水平显著增加,有助于识别高风险个体. 这一发现突出了DAO的发现.
科学领域:
- 免疫学 免疫学 免疫学
- 过敏和免疫学 过敏和免疫学
- 巨细胞生物学 巨细胞生物学
背景情况:
- 胺氧化酶 (DAO) 对于基因组胺降解至关重要,它是过敏反应的关键媒介.
- 达奥在过敏反应中的作用,特别是关于克隆性巨细胞疾病 (CMD) 的作用,仍然不清楚.
- 这项研究调查了基于CMD状态的过敏反应期间DAO水平的差异.
研究的目的:
- 为了评估在过敏反应期间的二胺氧化酶 (DAO) 水平是否在患有和没有克隆性巨细胞疾病 (CMD) 的患者之间有所不同.
- 评估DAO的诊断潜力,以识别患有CMD且发生过敏反应的个体.
- 探索DAO,基因组胺降解和CMD中过敏反应严重程度之间的关系.
主要方法:
- 招募了35名急诊室患者,患有急性过敏反应 (药物,食物或鸟毒液触发者).
- 在过敏和康复期间测量了血清三酶,DAO和基因组胺降解.
- 通过使用敏感的qPCR检测KIT p.D816V突变在外围血液白细胞中诊断出CMD;在致命病例中比较死后的DAO和试酶.
主要成果:
- 在6名 (17%) 患者中检测到KIT p.D816V,所有患者都患有严重的海门虫毒液过敏反应 (HVA).
- 在CMD患者的过敏反应期间,DAO显著增加 (中位数为1142%) 与非CMD患者中适度增加 (中位数为20%) (p < 0.0001).
- 急性DAO水平在CMD (101U/mL) 与非CMD (18U/mL) 中高出约5倍;ROC分析显示,使用急性DAO和其百分比增加的CMD的诊断准确度高.
结论:
- 在CMD患者的过敏反应期间DAO显著升高可能是最高风险的关键指标.
- DAO测量显示出在急性过敏症中识别CMD的强烈诊断潜力.
- 需要进一步的研究来完善诊断效用,并了解DAO在CMD中放大过敏反应中的作用.
相关概念视频
T Cell Activation and Clonal Selection
16.0K
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
16.0K
Bone Markings
8.0K
Bones have various surface features that help form joints and attach to other soft tissues. Depending on the function, bone markings are categorized into articulating projections, processes for attachment, depressions, and openings.
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
8.0K
Increasing Function
391
An increasing function exhibits a rise in output values as input values increase. This behavior is depicted graphically as a curve or line that slopes upward from left to right. Such a function satisfies the condition that if x1 < x2, then f(x1) < f(x2), indicating that the function values grow with increasing inputs. This concept is fundamental in understanding growth trends across various domains, such as population dynamics, financial investments, or resource consumption.The...
391
Intrinsically Disordered Proteins
19.4K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
19.4K
Design Example: Marking Boundaries of a Site Using a Compass
291
Marking site boundaries using a compass is a precise surveying technique that ensures the accuracy of boundary delineation. The process begins by using provided site details, including the bearings and lengths of each boundary line. The initial step involves calculating latitudes and departures for all sides of the site. This computation verifies that the traverse is free of errors, ensuring a closed and accurate boundary.The process starts at a known point, such as Point A, which is often...
291
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs
1.8K
Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
1.8K


