活性化タンパク質Cに対する遺伝的耐性と,静脈血栓症における因子V遺伝子変異との関連
1Department of Clinical Chemistry, University of Lund, Malmö General Hospital, Sweden.
Lancet (London, England)
|June 18, 1994
まとめ
家族性血栓形成症の1つの原因である活性化タンパク質C (APC) 抵抗は,因子V遺伝子と密接に関連しています. この遺伝子の特定の突然変異は,血栓形成症の最も一般的な遺伝的原因として特定されています.
科学分野:
- 遺伝学 遺伝学とは
- 血液学 ヘマトロジ
- 分子生物学は分子生物学である.
背景:
- 活性化タンパク質C (APC) 耐性は,家族性血栓形成症の重要な危険因子である.
- 浄化されたV因子からの抗凝固作用は,APC耐性を修正することができます.
研究 の 目的:
- トロンボフィリアの家族におけるAPC耐性とV因子遺伝子の間の遺伝的関連性を調査する.
- APC耐性の原因となる特定の遺伝子変異を特定する.
主な方法:
- フェクターV遺伝子のエクソン13における制限断片長ポリモルフィズム解析.
- 14人の家族における遺伝的リンク分析.
- ポイント変異を特定するためのDNAシーケンシング.
主要な成果:
- 因子V遺伝子ポリモルフィズムとAPC耐性との間には100%の関連性が見られた.
- 感染した個体では,因子VのAPC分裂部位における特定の点変異 (Arg506Gln) が特定されました.
- この変異は,同族内のすべてのAPC耐性個体で発見されました.
結論:
- V因子遺伝子変異は,APC耐性および家族性血栓形成症と強く関連しています.
- この特定の因子V遺伝子変異は,おそらく,血栓形成症の最も一般的な遺伝的原因である.
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