黒人の循環中のB型ナトリウレチンペプチド濃度と肥満の関係:ジャクソン心臓研究
Ervin R Fox1, Solomon K Musani, Aurelian Bidulescu
1University of Mississippi Medical Center, Division of Cardiovascular Diseases, 2500 N State St, Jackson, MS 39216, USA. efox@medicine.umsmed.edu
Circulation
|August 10, 2011
まとめ
黒人成人の場合,より高いボディマス指数は,より低いB型ナトリウレチンペプチド (BNP) レベルと関連しており",ナトリウレチン障害"が,この集団における肥満に関連する高血圧に寄与する可能性があることを示唆しています.
科学分野:
- 心臓病学 心臓病学
- エンドクリノロジー エンドクリノロジー
- 公衆衛生は公衆衛生である.
背景:
- 肥満に関連する高血圧は,ますます懸念される問題です.
- 肥満者におけるB型ナトリウレチンペプチド (BNP) の濃度が低く",ナトリウレチン障害"と呼ばれ,高血圧に寄与する可能性があります.
- 黒人集団におけるこの現象の役割は不明である.
研究 の 目的:
- 黒人成人の体質指数 (BMI) と血BNP濃度との関係を調査する.
- この集団におけるBMIがBNPレベルと逆関係にあるという仮説を検証する.
主な方法:
- 心不全のないジャクソン・ハート・スタディの3742人の参加者を対象とした横断的な研究.
- 多変量線形およびロジスティック回帰分析を使用し,臨床およびエコーカルディオグラフィの要因を調整しました.
- 男女間の差異を調査するために,性別分析が行われました.
主要な成果:
- 高いBMIは,ノルモテンシブと高血圧の黒人双方の多変数調整平均の低BNP濃度と関連していた.
- この逆相関は男性と女性の両方において観察され,差異はノルモテンシブな参加者においてより顕著であった.
- BNPレベルは,継続的およびカテゴリ的なBMI測定値と有意に関連していました.
結論:
- 高いBMIは,黒人成人の大規模なコミュニティベースのサンプルで,循環中のBNP濃度が低いことと関連しています.
- この発見は",ナトリウレティック・ハンディキャップ"の概念を,高血圧のリスクの高い集団である肥満の黒人個人に拡張します.
- この結果は,黒人集団における肥満と高血圧を結びつける潜在的なメカニズムを示唆している.
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