化学療法後の肺がん患者における神経血管結合の障害
Lanyue Hu1, Shaohua Ding2, Jun Yao1
1Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
Quantitative imaging in medicine and surgery
|September 2, 2025
まとめ
非小細胞肺がん患者では,化学療法によって神経血管結合 (NVC) が変化し,認知機能に影響する. この研究は,化学療法による認知障害 (CRCIs) に関連する神経血管分離を明らかにしています.
科学分野:
- 神経科学
- 腫瘍学
- 放射線科
背景:
- 非小細胞肺がん (NSCLC) 患者では,化学療法による認知障害 (CRCI) が一般的です.
- 認知障害は神経活動と脳血流の変化に起因する可能性があります.
- 化学療法後の神経血管結合 (NVC) 変化の具体的な影響は不明である.
研究 の 目的:
- 化学療法後のNSCLC患者のNVCの変化を調査する.
- NVCの変化と神経認知機能障害を 関連付けるためだ
主な方法:
- 43人のNSCLC患者 (20人が化学療法を受けた[CT(+) ],23人が化学療法を受けていない[CT(-) ]は,pCASL,rs- fMRI,および認知検査を受けた.
- グローバルと地域のNVCインデックスはCBF,ALFF,ReHoを使用して計算されました.
- 統計分析によりグループを比較し,NVCと認知能力の関係を評価した.
主要な成果:
- CT(+) グループでは,CBF-ALFFとCBF-ReHoの相関が著しく低下した.
- 地域分析では,CT ((+)) グループの特定の脳領域におけるCBF:ALFFとCBF:ReHoの比率が変化していることが明らかになった.
- 認知スコア (MoCA,記憶) とCBF:ALFF比率は,右側MFGと左側パラヒポカンプス領域で負の相関が見られた.
結論:
- 化学療法はNSCLC患者の神経血管分離を誘導する.
- 多様性神経イメージング (rs-fMRI,pCASL) は,CRCIのこれらの神経学的基礎を明らかにすることができます.
関連する概念動画
Cancer Therapies
7.9K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.9K
Pulmonary Embolism III: Nursing Management
37
A pulmonary embolism occurs when a thrombus, amniotic fluid, tumor tissue, fat, or air embolus blocks one or more pulmonary arteries. Effective nursing management and patient education are crucial for improving outcomes and preventing recurrence.Nursing management starts with obtaining a comprehensive patient history, particularly noting any history of deep vein thrombosis (DVT). Assess for clinical manifestations, including dyspnea, chest pain, crackles, heart murmurs, and signs of right-sided...
37
Treatment Resistant Cancers
3.4K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.4K
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
3.1K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
3.1K
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
44
Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
44
Chemotherapy-Induced Nausea and Vomiting: Cannabinoids
366
Tetrahydrocannabinol (THC) is a phytocannabinoid that primarily interacts with the CB1 receptor, a type of G protein-coupled receptor (GPCR) predominantly in and around the chemoreceptor trigger zone (CTZ) and emetic center. THC also blocks the serotonin receptor activity in the dorsal vagal complex (DVC) by inhibiting serotonin release. THC exerts its anti-emetic effects through these interactions, which are beneficial for patients undergoing chemotherapy.
Two synthetic agonists of THC,...
Two synthetic agonists of THC,...
366


