pyloric 狭窄症の家族集団化と遺伝性
Camilla Krogh1, Thea K Fischer, Line Skotte
1Department of Epidemiology Research, Statens Serum Institut, 5 Artillerivej, DK-2300 Copenhagen S, Denmark. ckr@ssi.dk
JAMA
|June 17, 2010
まとめ
乳児の手術でよく見られるピロリック狭窄症は,強い家族結合を示しています. この研究は87%の遺伝性を示し,その発達に重要な遺伝的要素があることを示しました.
科学分野:
- 小児外科手術について
- 遺伝学 遺伝学とは
- エピデミオロジー エピデミオロジー
背景:
- ピロリック狭窄症は,乳児における最も頻繁な外科的状態です.
- 以前の報告では,家族集合が示唆されているが,共有環境と遺伝の役割は不明である.
研究 の 目的:
- 複数の世代にわたるピロリック狭窄症の家族的集積を調査する.
- 性別と親の貢献が病気のリスクに与える影響を評価する.
- 胆管狭窄症の遺伝性を推定する.
主な方法:
- 人口ベースのコホート研究では,1977年から2008年の間に生まれた1,999,738人のデンマークの子供が含まれました.
- フォローアップは,人生の最初の年に焦点を当て,ピロリック狭窄症のために手術を必要とする3362の症例を特定しました.
- 家族の集積は,率比を用いて評価された.
主要な成果:
- ピロリック狭窄症の発生率は,独身児では1000人年当たり1.8,双子では3.1であった.
- 一卵性双生児 (182人),二卵性双生児 (29.4人),兄弟 (18.5人),いとこ (3.06人) の割合は著しく上昇した.
- 遺伝性は87%と推定され,性別や親の血統に基づく有意な差異はありませんでした.
結論:
- ピロリック狭窄症は,デンマークの人口の中で強い家族的集約を示しています.
- 高い遺伝性は,この状態の発達に重大な遺伝的影響を及ぼすことを示唆しています.
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