プラズマ副甲状腺ホルモンと,地域社会における心血管疾患による死亡リスク
Emil Hagström1, Per Hellman, Tobias E Larsson
1Uppsala Clinical Research Center, Uppsala University, Sweden. emil.hagstrom@ucr.uu.se
Circulation
|May 20, 2009
まとめ
副甲状腺ホルモン (PTH) 濃度の上昇は,一般の人々の心血管疾患による死亡率を予測します. この関連性は,PTHが正常範囲内にある個人にさえも当てはまり,PTHを強調しています.
科学分野:
- エンドクリノロジー エンドクリノロジー
- 心血管医学は,心臓血管医学である.
- エピデミオロジー エピデミオロジー
背景:
- 副甲状腺ホルモン (PTH) の上昇は,心血管疾患 (CVD) と死亡率に関連しています.
- 一般集団におけるPTHとCVDの死亡率に関する見通しデータは限られている.
研究 の 目的:
- プラズマPTH濃度と心血管疾患による死亡率の関連性を,地域社会における高齢者男性コホートで調査する.
- PTHがCVDの死亡率を,既定の危険因子とは無関係に予測するかどうかを判断する.
主な方法:
- 958人の高齢男性を対象としたウプサラ長距離研究 (ULSAM) のデータを活用した.
- プラズマPTHと心血管疾患による死亡率との関連性を分析するために,コックスの比例リスクモデルを用いて,平均9.7年の追跡期間における関連性を分析した.
- 血圧,糖尿病,喫煙,BMI,コレステロール値,薬物使用などの複数の心血管リスク要因に調整されています.
主要な成果:
- 血のPTH濃度の上昇は,心血管疾患による死亡リスクの上昇と有意に関連していました (1-SD増加あたりHR: 1.38; P<0.001).
- この関連性は,前述のCVDのない参加者および正常なPTHおよびミネラル代謝を有する参加者において持続した.
- 増加したPTH (>5.27 pmol/L) は,心血管疾患による死亡のリスクの20%を占めた.
結論:
- 血PTHレベルは,地域社会における心血管疾患による死亡率の有意な予測因子である.
- PTHは,通常の範囲内でも,明らかな代謝障害のない個体でもリスクを予測することができます.
- CVDリスクの予測におけるPTHの臨床的有用性と,変更可能な標的としてのその可能性を調査するために,さらなる研究が必要である.
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