関連する実験動画
Updated: Feb 14, 2026

10:02
Whole-body PET/MRI of Pediatric Patients: The Details That Matter
Published on: December 19, 2017
15.4K
溶性TREM2は,抗NMDAR脳炎の小児患者で上昇しています
Anna Zhou1, Changhong Ren1, Ji Zhou1
1Department of Neurology, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China.
Journal of clinical medicine
|February 13, 2026
まとめ
脳脊髄液 (CSF) の骨髄細胞2 (sTREM2) に発現する溶性トリガー受容体は,小児抗N-メチル-D-アスパルテート受容体 (NMDAR) の脳炎の診断と結果を予測する有望なバイオマーカーです. CSFのsTREM2レベルが高くなるということは,より大きな神経炎症と,より悪い予後を意味します.
科学分野:
- 神経免疫学 神経免疫学とは
- バイオマーカーの発見
- 小児神経学について
背景:
- アンチ-N-メチル-D-アスパルテート受容体 (NMDAR) エンセファライトは,小児における重度の自己免疫神経疾患である.
- 正確な診断および予後バイオマーカーは,小児の抗NMDAR脳炎の効果的な管理に不可欠です.
- ミエロイド細胞2 (sTREM2) に発現する溶性トリガー受容体 (sTREM2) は,神経炎症におけるその役割について調査されています.
研究 の 目的:
- 小児の抗NMDAR脳炎における診断および予後バイオマーカーとして,脳脊髄液 (CSF) と血清における溶性トリガー受容体,骨髄細胞2 (sTREM2) に発現するトリガリング受容体を評価する.
- sTREM2レベルと疾患の重症度およびアウトカムとの相関を評価する.
主な方法:
- この研究では,抗NMDAR脳炎を患った21人の小児患者と,非炎症性神経疾患 (OND) を患った27人の対照群が参加しました.
- CSFと血清のサンプルを,酵素関連免疫吸収検査 (ELISA) を使用して,sTREM2レベルを分析した.
- 統計的分析には,マン・ウィトニーUテストとROC曲線分析が含まれ,診断および予後値の決定が行われました.
主要な成果:
- 抗NMDAR脳炎を患った小児は,対照群と比較して,CSFと血清のsTREM2レベルが著しく高かった (p < 0.001).
- CSFのsTREM2レベルは,疾患の重症度 (mRSスコア) と正に相関し,神経機能 (GCSスコア) と否定的に相関する.
- CSF sTREM2は高い診断精度 (AUC = 0.887) を示し,血清 sTREM2も有意な精度 (AUC = 0.848) を示した.
- 低CSF sTREM2レベルは,より良い患者の予後と関連していました (p = 0.029).
結論:
- 増加したCSF sTREM2レベルは,神経炎症の増加と,小児の抗NMDAR脳炎における有害な臨床結果と関連しています.
- CSF sTREM2は,小児の抗NMDAR脳炎を診断するための貴重なバイオマーカーとしての可能性を示している.
- sTREM2は,罹患児の予後を予測し,治療戦略を導くのに役立ちます.
関連する概念動画
Pharmacokinetics in Pediatric Patients: Drug Excretion
279
In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
279
Pharmacokinetics in Pediatric Patients: Drug Distribution
334
Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight,...
334
Pharmacokinetics in Pediatric Patients: Drug Metabolism
247
In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses...
247
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
311
Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
311
Factors Affecting Solubility
37.3K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
37.3K
Solubility Equilibria
57.9K
Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many natural and technological processes, ranging from tooth decay to water purification. An understanding of the factors affecting compound solubility is, therefore, essential to the effective management of these processes. This section applies previously introduced equilibrium concepts and tools to systems involving dissolution and precipitation.
The...
The...
57.9K

