関連する実験動画
Updated: Jul 16, 2026
09:22
Mouse Pneumonectomy Model of Compensatory Lung Growth
Published on: December 17, 2014
Bronchopulmonary dysplasia Bronchopulmonary dysplasia ブロンコ肺機能不形成症 ブロンコ肺機能不形成症 ブロンコ肺機能不形成症 ブロンコ肺機能不形成症 ブロンコ肺機能不形成症
John P Kinsella1, Anne Greenough, Steven H Abman
1Department of Paediatrics, University of Colorado School of Medicine, Denver, USA. John.kinsella@uchsc.edu
Lancet (London, England)
|May 3, 2006
まとめ
Bronchopulmonary dysplasia (BPD) は,早産児に影響を及ぼす慢性肺疾患であり,病院再入院と長期の呼吸器疾患を増加させています. 研究では,肺損傷を軽減し,罹患した乳児の肺の成長を改善するための新しい治療法を模索しています.
科学分野:
- ネオナタロジーの新生児科
- 小児肺病学について
- 慢性肺疾患 慢性肺疾患とは
背景:
- Bronchopulmonary dysplasia (BPD) は,早産児における罹病率と死亡率の重要な原因である.
- 極めて早産児の生存率の増加は,BPD症例の増加につながりました.
- BPDは,頻繁な再入院と,思春期まで持続する呼吸器系症状のために,医療資源に相当な負担を課します.
研究 の 目的:
- 重度の急性呼吸器障害なしに慢性的な酸素依存を特徴とする"新しいBPD"を含む,BPDの進化する理解に取り組む.
- "新型BPD"の原因として,産後肺成長障害の可能性を調査する.
- これらの乳児のキャッチアップ肺成長に関する未知の要因,特に産後コルチコステロイド使用に関する未知の要因を探求する.
主な方法:
- BPDの病原性と臨床的結果に関する現在の文献のレビュー.
- BPDの定義と臨床プレゼンテーションの変化の分析.
- 肺の成長と治療的介入に関する知識のギャップを特定する.
主要な成果:
- BPDの定義は進化し,重度の急性呼吸器障害のない乳児で"新しいBPD"が出現し,肺の成長障害と潜在的に関連しています.
- BPDの乳児は,長期にわたる呼吸器系の問題を経験し,頻繁にヘルスケアを利用する必要があります.
- BPDにおけるキャッチアップ肺成長に対する産後コルチコステロイドの有効性は,現在不明です.
結論:
- Bronchopulmonary dysplasiaは,新生児ケアにおける継続的な課題であり,罹患率が増加しています.
- "新型BPD"における肺の成長障害のメカニズムを理解するために,さらなる研究が必要である.
- 安全で効果的な予防療法および肺の成長を改善する治療法の開発は,将来の研究の重要な分野です.
さらに関連する動画
関連する概念動画
01:05Breathing
The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...
01:17Pulmonary Cycle: Exhalation
In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
01:21Acute Respiratory Failure-II
Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
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
01:23Chronic Obstructive Pulmonary Disease II: Emphysema
Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...