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NTIS 바로가기생명과학회지 = Journal of life science, v.28 no.7 = no.219, 2018년, pp.802 - 810
김재련 (동의대학교 화학과) , 김문무 (동의대학교 응용화학)
Aging is accompanied by changes in the body, such as graying hair, wrinkles, and black spots composed of lipid peroxides and proteins. Melanin is a polymer substance produced by an oxidation polymerization reaction from tyrosine, and it determines the color of hair and skin. It has been reported tha...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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인체 내에 존재하는 활성산소종에는 무엇이 있는가? | 노화는 나이가 들면서 생기는 몸의 변화로 검은 머리가 희게 변하는 백발화, 과산화지질과 단백질이 결합 되어 생기는 노폐물 덩어리인 검버섯, 주름 등의 표현형으로 알 수 있다[32]. 인체 내에 존재하는 활성산소종(reactive oxygen species, ROS)은 superoxide, hydroxyl radical, hydrogen peroxide (H2O2) 그리고 singlet oxygen이 있다[37]. 과량으로 생성되는 ROS는 세포에도 산화적 손상을 입혀 성분 및 구조를 변화시켜[5], 암과 같은 질병의 원인이 된다[24]. | |
활성산소종을 제거함으로 산화적 손상을 줄일 수 있는 항산화 비타민에는 무엇이 있는가? | 과량으로 생성되는 ROS는 세포에도 산화적 손상을 입혀 성분 및 구조를 변화시켜[5], 암과 같은 질병의 원인이 된다[24]. ROS를 제거함으로 산화적 손상도 줄일 수 있는 대표적인 항산화 비타민은 beta-carotin, vitamin C (Vit. C)와 vitamin E (Vit. E) 등이 있다[36]. 특히, 머리카락 색과 관련된 melanin과 검버섯에 관련된 lipofuscin은 빛과 ROS에 의해 생성되고 축적된다고 알려져 있다[19]. | |
과량으로 생성되는 ROS는 세포에 어떤 영향을 미치는가? | 인체 내에 존재하는 활성산소종(reactive oxygen species, ROS)은 superoxide, hydroxyl radical, hydrogen peroxide (H2O2) 그리고 singlet oxygen이 있다[37]. 과량으로 생성되는 ROS는 세포에도 산화적 손상을 입혀 성분 및 구조를 변화시켜[5], 암과 같은 질병의 원인이 된다[24]. ROS를 제거함으로 산화적 손상도 줄일 수 있는 대표적인 항산화 비타민은 beta-carotin, vitamin C (Vit. |
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