関連する実験動画
Updated: Feb 13, 2026

09:51
Laparoscopic Anterior Right Hepatectomy: A Single-Center Experience
Published on: December 4, 2023
1.7K
プレメディケーションによる子供におけるL-アスパラギナーゼ過敏症の予防:単一センターでの経験
Pongsathorn Saligupta1, Chane Choed-Amphai1, Lalita Sathitsamitphong1
1Division of Allergy and Clinical Immunology (PS, ML), Division of Pediatric Hematology and Oncology (CC, LS), Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
まとめ
プレメディケーションプロトコルは,重度の過敏反応を経験したALLの子供に対するL-アスパラギナゼ治療の継続を安全に可能にしました. このアプローチは,資源が限られた環境で,化学療法へのアクセスを改善します.
科学分野:
- 小児腫瘍学 小児腫瘍学
- 薬理学 薬理学とは
- 臨床免疫学 臨床免疫学について
背景:
- L-アスパラギナゼは,小児急性リンパ性白血病 (ALL) の治療に不可欠です.
- L-アスパラギナーゼに対する過敏反応は,代替治療を必要とし,資源の限られた地域で利用できない可能性があります.
- ネイティブ *Escherichia coli* L-アスパラギナーゼは一般的な配方ですが,重度の反応が発生することがあります.
研究 の 目的:
- プリメディケーションプロトコルの安全性と実現可能性を評価する.
- ネイティブ *E. coli* L-アスパラギナーゼに対する重症反応の歴のある小児の過敏反応を予防する.
- 資源の限られた環境でL-アスパラギナゼ治療の継続を可能にするために.
主な方法:
- ALLの119人の子どもを対象とした遡及的なコホート研究.
- 10人の患者 (8.4%) が,重度の全身性過敏反応を発症した.
- 後のL-アスパラギナーゼ投与前に,経口プレドニゾロン,セチリジン,モンテルカスト,静脈注射ヒドロコルチゾンを含むプレメディケーションプロトコルを投与しました.
主要な成果:
- プレメディケーション後に76回のL-アスパラギナーゼ投与を受けた.
- 7人の再発性過敏反応 (9.2%) が6人の患者で発生し,そのほとんどは軽度であった.
- すべての患者はL-アスパラギナーゼ治療を終えたが,重症反応の場合はエピネフリンが必要だった.
結論:
- プレメディケーションプロトコルは,ネイティブ *E. coli* L-アスパラギナーゼ治療を安全に継続する可能性を示しました.
- この戦略は,資源が限られた環境でALLの子どもたちの化学療法へのアクセスを改善する可能性がある.
- さらなる研究により,L-アスパラギナーゼ過敏症の管理のためのこのアプローチを検証することができます.
関連する概念動画
Hypersensitivities
7.7K
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...
7.7K
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions
1
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...
1
Lattice Centering and Coordination Number
12.2K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
Types of Unit Cells
Imagine taking a large number of identical...
12.2K
Hypersensitivity Reactions: Cytolytic Reactions
3
Type II hypersensitivity involves IgG and IgM antibodies targeting cell surface antigens, leading to cell destruction. This can occur through complement activation, antibody-dependent cell-mediated cytotoxicity (ADCC), or acting as opsonins for phagocytosis. When excessive, these reactions cause significant tissue damage.Drug-induced hemolytic anemia is a common example, where drugs like penicillin or cephalosporins bind to red blood cells, forming drug-protein complexes. These complexes...
3
Center of Gravity
6.8K
The center of gravity (COG) of an object is the point where the object's total weight is considered to be concentrated. Knowing the location of the center of gravity is useful when predicting the behavior of a moving object or designing static structures. In a uniform gravitational field, the center of gravity is similar to the center of mass (COM); yet, these two points can be positioned differently. For example, the Moon's center of mass lies very close to its geometric center, but...
6.8K
Center of Gravity
2.2K
The center of gravity is the point at which an object's weight appears to be concentrated and can be used to balance the object perfectly. This point is essential in mechanics as it provides information regarding a body's stability and moments of inertia. The center of gravity does not always have to fall within the shape or boundaries of the body; it may also lie outside the body in certain cases.
To determine its location, the principle of moments can be utilized by dividing the object into...
To determine its location, the principle of moments can be utilized by dividing the object into...
2.2K

