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NTIS 바로가기Journal of nutrition and health, v.49 no.6, 2016년, pp.429 - 436
Purpose: Solar ultraviolet (UV) radiation causes inflammation and matrix metalloproteinase (MMP) overexpression and extracellular matrix depletion, leading to skin photoaging such as wrinkle formation, dryness, and sagging. Activation of MMP is influenced by various molecules such as reactive oxygen...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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피부의 노화의 외부 요인 중 가장 큰 요인은? | 1 피부는 이러한 인체의 노화를 잘 보여주는 기관 중 하나이다. 노화된 피부는 주름형성과 처짐, 거칠어짐, 건조함 등의 특징을 나타내며, 이러한 피부의 노화는 나이가 들어감에 따라 나타나지만 외부 요인에 의해서 노화가 촉진되기도 하는데 그 중 자외선이 가장 큰 요인이다.2 | |
노화 현상이란? | 노인인구의 증가와 고령화 사회로의 진입으로 인체의 노화에 대응하기 위한 방법들이 모색되고 있다. 노화 현상은 신체의 성장과 발달이 중지되면서 나타나는 피할 수 없는 과정으로서 체성분 및 신체 각 기관의 기능에 변화가 생기는 것을 의미한다.1 피부는 이러한 인체의 노화를 잘 보여주는 기관 중 하나이다. | |
항산화물질들을 섭취함으로써 UVB에 의한 광노화로부터 피부를 보호할 수 있다는 것의 예는? | 8,9 실제로 항산화물질들을 섭취함으로써 UVB에 의한 광노화로부터 피부를 보호할 수 있다는 보고들이 있는데, 그 작용기전은 ROS를 직접적으로 제거하거나 스트레스 신호를 조절하거나 UV에 의한 염증반응을 줄이는 것으로 보고되었다. 예를 들어 카로티노이드, 비타민 E, 비타민 C, 폴리페놀과 같은 많은 항산화물질들이 UV로 인하여 발생한 ROS를 줄임으로써 피부 방어에 기여하여 피부 손상을 막아주는 것으로 알려져 있다.10 |
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