関連する実験動画
Updated: Jul 7, 2026
06:07
Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System
Published on: October 22, 2020
二手喫煙と,システィックフィブロシス肺疾患に影響を与える遺伝子の相互作用
J Michael Collaco1, Lori Vanscoy, Lindsay Bremer
1Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
JAMA
|January 31, 2008
まとめ
性線維症 (CF) の患者の肺機能を著しく悪化させる. CFTRとTGFbeta1を含む特定の遺伝子変異は,これらの有害な影響を増幅し,CFの個人に喫煙を避けることの重要性を強調しています.
科学分野:
- 肺医学 肺医学について
- 遺伝学 遺伝学とは
- 環境衛生 環境衛生 環境衛生
背景:
- 囊性線維症 (CF) は,単一遺伝子の病因にもかかわらず,重要な疾患の多様性を表しています.
- 遺伝子環境相互作用の調査は,疾患の異質性を理解するために重要である.
研究 の 目的:
- CF患者における二手喫煙 (SHS) 曝露と肺機能の関連性を評価する.
- 社会経済的地位 (SES) がSHSと肺疾患の関係に影響を与えるかどうかを判断する.
- CFの肺機能にSHSの影響を及ぼす遺伝子環境相互作用を特定する.
主な方法:
- 米国のCystic Fibrosis Twin and Sibling StudyとCF Foundation Data Registryから得られた肺機能データを遡及的に分析した.
- 環境 (SHS曝露) と遺伝的要因による層分化.
- 横断的および縦断的な肺機能測定値の評価.
主要な成果:
- 二手喫煙への曝露は,CF患者の横断面および縦断面肺機能の著しく低下と関連していました.
- 社会経済的な地位は,SHSが肺機能に与える悪影響を否定しなかった.
- CFTRとTGFbeta1の遺伝子変異は,SHSが肺機能に与える負の影響を増幅した.
結論:
- どんなレベルの二手喫煙でも,システィック・フィブロシス患者の肺機能に悪影響を及ぼします.
- CFTRおよびTGFbeta1遺伝子の遺伝的変異は,SHS暴露が肺機能に与える有害な影響を悪化させる.
関連する概念動画
01:23Cystic Fibrosis: Pathogenesis
Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
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...
01:23Chronic Obstructive Pulmonary Disease I: Introduction
Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
01:24Cystic Fibrosis: Management
Cystic fibrosis (CF) is an autosomal recessive disorder that predominantly affects individuals of Northern European descent, occurring at a rate of 1 in 3500. It is caused by a genetic mutation in a gene on chromosome 7, most commonly the ΔF508 mutation, that codes for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. This results in thicker mucus secretions and obstruction pathologies in multiple organs, including the lungs and sinuses.
Sinus disease and chronic sinusitis...
Sinus disease and chronic sinusitis...