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NTIS 바로가기한국유화학회지 = Journal of oil & applied science, v.35 no.2, 2018년, pp.509 - 518
변용현 (단국대학교 스포츠과학대학원) , 박우영 (단국대학교 스포츠과학대학원)
The purpose of this study was myokine product and role with physical activity and literature review. There is accumulating epidemiological evidence that a physically active life plays an independent role in the protection against type 2 diabetes, cardiovascular disease, colon cancer, dementia and ev...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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마이오카인(myokine)은 무엇인가? | 마이오카인(myokine)은 근수축시 근육에서 분비되는 호르몬이자 주요 대사적 질환에서 나타나 며, 골격근은 신체의 주요 큰 기관으로서 신체활동에 따른 골격세포로부터 발현되거나 합성되는 물질을 마이오카인이라 정의하였다(12). 내분비와 같은 호르몬 역할을 세포나 기관에 대사적 측면에 영향을 미치는 것으로 알려져 왔는데 사이토카인(cytokine)이나 다른 펩타이드는 근섬유나 외분비계, 곁분비 및 내분비에 영향을 주는 것으로 이를 마이오카인으로 분류하기도 하였다(13) 지방세포를 사이토카인(adipokine)의 주요 원료로서 간주하고 있으나 근육에서 사이토카인이 분비되고 발현되는 것이 발견됨에 따라 지방 세포는 분비분자의 주요 원천일 것이다. | |
근육에서 분비되는 IL-6이 감소하는 조건은 무엇인가? | 근육에서 분비되는 IL-6 증가 및 감소는 운동 강도, 운동 기간, 근육량, 낮은 근글리코겐 함량 등에 의해서 차이를 나타나는 것으로 보고되고 있다(17) (18) (19). 또한 근육 손상, 탄수화물 섭취 시 분비량이 감소하는 것으로 나타났다(20) (21). 이것은 IL-1 길항 수용 체와 항염증 싸이토카인 IL-10의 출현 다음에 보여지는데 케모카인(chemokine), IL-8, 대식 염증 단백질 1α(MIP-1α)와 MIP-1β는 격렬한 운동 후 증가한다. | |
규칙적인 신체활동의 부재가 야기하는 것은 무엇인가? | 특히 신체적인 비활동에 의해 50세 이후에는 제 2형 당뇨(3), 심혈관 질환(4), 대장암(5), 폐경기 후 유방암(6), 알츠하이머나 심혈관 치매(7)(8), 우울증 (9) 등 대사성 질환 뿐만 아니라 다양한 질환을 악화시켜 조기 사망을 불러일으키거나 삶의 질을 악화시키게 되고, 후천적 요인일지라도 부정적인 병태생리학적 기전을 일으키는 중요 요인이기도 하다. 분명한 것은 규칙적인 신체활동의 부재는 체지방 과다를 일으키고, 비만과의 상관성이 높기 때문에(10), 장기적으로 사망 원인을 제공하는 것으로 보고되고 있으며(11), 체지방의 과다 축적은 유리지방산(FFA)의 활성화에 의한 염증세포 경로를 제공하여 인슐린 저항성, 죽상경화증, 치매와 종양증대를 불러일으키게 된다. |
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