セロトニントランスポーター遺伝子 (5-HTTLPR),ストレスの多い人生の出来事,うつ病のリスクとの相互作用:メタ解析
Neil Risch1, Richard Herrell, Thomas Lehner
1Institute for Human Genetics, University of California at San Francisco, and Kaiser Permanente Northern California Division of Research, Oakland, USA.
JAMA
|June 18, 2009
まとめ
このメタ解析では,セロトニントランスポーター遺伝子 (5-HTTLPR) のゲノタイプが,ストレスの多い人生の出来事と相互作用して,うつ病のリスクを増やすという証拠は見つかりませんでした. ストレスの多い人生の出来事だけがうつ病と関連していたが,遺伝子やストレスとの相互作用はそうではなかった.
科学分野:
- 遺伝学 遺伝学とは
- 精神科医は精神病を患っている.
- エピデミオロジー エピデミオロジー
背景:
- 複雑な精神障害は,遺伝子と環境の相互作用と関連しています.
- セロトニントランスポーター関連ポリモルフィック領域 (5-HTTLPR) とストレスの多い人生の出来事は,重度のうつ病のリスクに関連している.
研究 の 目的:
- セロトニントランスポーター遺伝子 (5-HTTLPR) とうつ病のリスクに関するストレスの多い人生の出来事との相互作用をメタ分析する.
- 総合的な分析のために,公開されたデータと個人レベルのデータの両方を活用する.
主な方法:
- 関連する研究について,PubMed,EMBASE,PsycINFOで検索しました.
- メタアナリシスには14の研究が含まれており,10の研究は個別レベルのオリジナルのデータを提供した.
- 関連性と相互作用を評価するために,物流的回帰とランダム効果メタ解析を使用した.
主要な成果:
- ストレスの多い生活イベントは,うつ病と有意に関連していました (OR, 1.41; 95% CI, 1.25-1.57).
- 5-HTTLPR遺伝子型とうつ病 (OR,1.05;95%CI,0.98-1.13) の間に有意な関連性が見つかりませんでした.
- 5-HTTLPR遺伝子型とストレスの多い人生の出来事の間のうつ病に対する相互作用効果は観察されなかった (OR,1.01;95%CI,0.94-1.10).
結論:
- セロトニントランスポーター遺伝子型だけでは,うつ病のリスクの増加に関連していません.
- セロトニントランスポーター遺伝子型とストレスの多い人生の出来事の相互作用がうつ病リスクを増加させるという証拠は存在しない.
- 結果は,性別分析と性別分析において一致していた.
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