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NTIS 바로가기한국미생물·생명공학회지 = Korean journal of microbiology and biotechnology, v.39 no.3, 2011년, pp.224 - 237
권소진 (경북대학교 사범대학 생물교육과) , 송방호 (경북대학교 사범대학 생물교육과)
For establishing the efficacy against breast cancer occurrence, women's mammographic breast density and hot flush remission related to pre and post-menopausal symptoms were selected as biomarkers. Meta analysis applied the final selection of 40 papers from Medline to assess the efficacy of isoflavon...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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아시아 여성의 유방암의 발생률이 서구 여성에 비해 현저히 낮은 것으로 생각되는 까닭은 무엇인가? | 유방암의 발생률은 아시아 여성이 서구 여성에 비해 현저히 낮음이 역학조사에서 확인되었다. 이는 아시아인들이 수천년동안 대두의 발효식품을 사용하여 왔음에 기인된 것으로 추정되고 있다. 왜냐하면 대두가 미국이나 유럽에서는 18세기 이후 경작되었으며, 보다 명확한 것은 서구로 이민 간 일본인의 경우 몇 세대만 지나면 서구의 대조군과 동일 수준으로 유방암 발생률이 증가한다는 점에서 암의 발병요인을 식이성 변화와 연관지어 유추하였기 때문이다. 특히 아시아 여성들의 낮은 유방암 발생빈도를 유전성, 섬유성 식이, 저지방 식품의 섭취 등에 기인시켰으나, 가장 주된 요인은 대두 이소플라본의 다량 섭취로 인하여 항 에스트로겐 성 분에의 다량 노출 때문인 것으로 예상하였다[76]. | |
유방암 발생의 생체마커는 무엇이 있는가? | 유방암 발생의 생체마커인 유방밀도와 안면홍조 현상을 분석의 주된 인자로 설정하였다. 유방암의 위험도를 예시하는 유방밀도와 폐경기 증상으로 흔히 나타나는 안면홍조현상의 심각성이 이소플라본에의 노출 시 그 억제효과가 있는 지를 해석하였다. | |
이소플라본의 항암작용은 무엇과 연관되는가? | 더욱이 이소플라본의 효능에 대한 최근의 총설[11, 18, 30]에서 유방밀도의 감소효과나 폐경성 안면홍조의[41] 억제능에 대해서는 아직도 많은 의문점이 제시되기 때문이다. 특히 이소플라본의 항암작용은 에스트로겐 또는 항에스트로겐으로서의 활성 이외에도 티로신키나아제의 저해, 항산화활성, 퍼옥시좀 증식자의 조절인자와의 결합과 활성화, 스테로이드 생합성효소의 저해, 내츄럴 킬러세포의 기능 강화에 의한 T-세포군의 활성화, 암전이의 저해 등의 활성과도 연관시켜 동양여성에서 호르몬 의존성 유방암이 낮은 이유를 설명하고 있다[5]. |
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