腹部大動脈のカルシフ堆積の遺伝性に関する証拠は,フレミングハム心臓研究で示された
Christopher J O'Donnell1, Irmarie Chazaro, Peter W F Wilson
1National Heart, Lung and Blood Institute's Framingham Heart Study, Framingham, Mass 01702, USA. chris@fram.nhlbi.nih.gov
Circulation
|July 18, 2002
まとめ
遺伝的要因は,動脈硬化症のマーカーである腹部大動脈カルシフィケーション (AAC) に著しく影響します. AACの差異のほぼ半分は遺伝的特徴に起因し,この心血管疾患の予測因子の遺伝的根拠を示唆しています.
科学分野:
- 心血管遺伝学 心血管遺伝学
- 動脈硬化症の研究研究
- メディカルイマージング (医学イメージング)
背景:
- 動脈硬化症は,心血管疾患に関連した全身疾患です.
- 放射線写真における腹動脈化 (AAC) は動脈硬化を示し,心血管疾患を予測します.
- 大動脈カルシフィケーションの遺伝性は,ほとんど特徴づけられていないままです.
研究 の 目的:
- 腹動脈カルシフィケーション (AAC) の遺伝性を調査する.
- 遺伝的および環境的要因に起因するAACの変動の割合を決定する.
主な方法:
- フレミングハム心臓研究 (Framingham Heart Study) に参加した2,151人の横側腰部のX線写真の分析.
- 検証された評価スケールを使用して,腹動脈カルシフ (AAC) 貯蔵量の定量化.
- 家族のペア (親子,兄弟,配偶者) の相関係数の計算とSOLAR差分成分法による遺伝推定.
主要な成果:
- AACの年齢,性別,多変数調整相関係数は,親子対では0.52,兄弟対では0.20でした.
- AACの遺伝性は0.49 (P<0.001) と推定され,重要な遺伝的影響を示した.
- AAC埋蔵の総変動の49%は遺伝的要因に起因し,31%は測定された共変数によるものです.
結論:
- 遺伝的要因は,腹動脈カルシフィケーションの存在と範囲に大きく寄与する.
- AACの変動の大部分は,さらなる特徴づけを必要とする添加的な遺伝効果によるものです.
- AACの測定は,動脈硬化症の遺伝的研究のための遺伝的定量的な現象型として機能することができます.
関連する概念動画
Imaging Studies for Cardiovascular System III: X-Ray
710
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
710
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
976
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
976
Coronary Artery Disease I: Introduction
1.8K
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
1.8K
Aneurysm II: Clinical Manifestations and Diagnostic Studies
592
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
592


