뇌 신경조절에서의 식이 폴리페놀 화합물의 역할

국문 초록 (Abstract)

최근의 연구결과를 통해서 중추 신경계와 위장관은 장-뇌 축을 따라서 양방향의 상호작용이 일어나고 있다는 것이 분명해지고 있다. 전임상 연구로부터 장내 마이크로비오타가 다양한 생리적 기능을 통해서 중추 신경계의 기능을 조절할 수 있음이 밝혀지고 있다. 폴리페놀 화합물은 과일, 채소, 차, 커피, 와인과 같은 식품에 존재하는 식물 유래의 물질로, 항산화, 항염증, 항균, 면역 조절, 항암, 혈관 확장 및 프리바이오틱스와 유사한 효과를 보유하고 있어 식이를 통해 섭취할 경우 건강에 직접적인 효과를 나타낸다. 최근 들어 폴리페놀 화합물이 인지 기능뿐만 아니라 산화적 스트레스 및 염증성 손상에 대해 작용하는 신경 보호에 유익한 효과를 줄 수 있다는 증거가 보고되고 있다. 본 총설에서는 신경 세포 신호 전달 경로의 자극, 신경 염증, 혈관 기능 및 장내 마이크로비옴과의 상호작용에 따른 폴리페놀 화합물의 신경 보호 효과와 관련된 작용 메커니즘에 대한 일반적인 개요를 제시한다. 폴리페놀 화합물의 대사 산물은 혈액-뇌 장벽을 가로 지르는 신경 전달 물질을 이용하고 뇌 혈관 시스템을 조절하여 작용하거나, 간접적으로 장내 마이크로비오타에 작용한다. 또한, 폴리페놀 화합물은 노화 관련 인지 기능 저하 및 신경 퇴행과 같은 신경계 질환을 다양한 생리 기능을 통해 효과적으로 관리할수 있다는 사실이 제시되고 있다. 폴리페놀 화합물은 신경 염증을 감소시키고 기억과 인지 기능을 향상 시키며 장내 마이크로비오타를 조절하는 능력을 지니고 있기 때문에 신경계 질환의 예방 및 치료에 있어 잠재적인 기능성 식품으로 주목 받을 것으로 기대된다.

다국어 초록 (Multilingual Abstract)

Over recent years, it has become evident that the central nervous system bidirectionally interacts with the gastrointestinal tract along the gut-brain axis. A series of preclinical studies indicate that the gut microbiota can modulate central nervous system function through a multitude of physiological functions. Polyphenols are ubiquitous plant chemicals included in foods such as fruits, vegetables, tea, coffee and wine, and their consumption is directly responsible for beneficial health effects due to antioxidant, anti-inflammatory, antimicrobial, immunomodulatory, anticancer, vasodilating, and prebiotic-like effects. There is increasing evidence that dietary polyphenol can contribute to beneficial effects in neuronal protection acting against oxidative stress and inflammatory injury as well as in cognitive functions. In this paper, we overview the neuroprotective role of dietary polyphenols especially focusing on the neuroinflammation and neurovascular function by interaction with the gut microbiome. Polyphenol metabolites could directly act as neurotransmitters crossing the blood-brain barrier and modulating the cerebrovascular system or indirectly modulating gut microbiota. In addition, evidence suggests that dietary polyphenols are effective in preventing and managing neurological disorders, such as age-related cognitive decline and neurodegeneration, through a multitude of physiological functions. Dietary polyphenols are increasingly envisaged as a potential nutraceuticals in the prevention and treatment of neurological disorders, because they possess the ability to reduce neuroinflammation, to improve memory and cognitive function and to modulate the gut microbiota.

목차 (Table of Contents)

• 서론
• 본문
• 결론
• References
• 초록

참고문헌 (Reference)

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