Department of Biopharmaceutical Engineering, Division of Chemistry and Biotechnology, Dongguk University, Gyeongju 38066, Korea.
Nutrients. 2020 May 24;12(5):1529. doi: 10.3390/nu12051529.
During the aging process of an organism, the skin gradually loses its structural and functional characteristics. The skin becomes more fragile and vulnerable to damage, which may contribute to age-related diseases and even death. Skin aging is aggravated by the fact that the skin is in direct contact with extrinsic factors, such as ultraviolet irradiation. While calorie restriction (CR) is the most effective intervention to extend the lifespan of organisms and prevent age-related disorders, its effects on cutaneous aging and disorders are poorly understood. This review discusses the effects of CR and its alternative dietary intake on skin biology, with a focus on skin aging. CR structurally and functionally affects most of the skin and has been reported to rescue both age-related and photo-induced changes. The anti-inflammatory, anti-oxidative, stem cell maintenance, and metabolic activities of CR contribute to its beneficial effects on the skin. To the best of the author's knowledge, the effects of fasting or a specific nutrient-restricted diet on skin aging have not been evaluated; these strategies offer benefits in wound healing and inflammatory skin diseases. In addition, well-known CR mimetics, including resveratrol, metformin, rapamycin, and peroxisome proliferator-activated receptor agonists, show CR-like prevention against skin aging. An overview of the role of CR in skin biology will provide valuable insights that would eventually lead to improvements in skin health.
在生物体衰老的过程中,皮肤逐渐失去其结构和功能特征。皮肤变得更加脆弱,容易受到损伤,这可能导致与年龄相关的疾病甚至死亡。皮肤与外在因素(如紫外线照射)直接接触,这加剧了皮肤的衰老。虽然热量限制(CR)是延长生物体寿命和预防与年龄相关疾病的最有效干预措施,但它对皮肤衰老和相关疾病的影响还不太清楚。本文综述了 CR 及其替代饮食摄入对皮肤生物学的影响,重点讨论了皮肤衰老。CR 对大多数皮肤都有结构和功能上的影响,据报道,它可以挽救与年龄相关的和光诱导的变化。CR 的抗炎、抗氧化、干细胞维持和代谢活性有助于其对皮肤的有益作用。据作者所知,禁食或特定营养限制饮食对皮肤衰老的影响尚未得到评估;这些策略在伤口愈合和炎症性皮肤病方面具有益处。此外,众所周知的 CR 模拟物,包括白藜芦醇、二甲双胍、雷帕霉素和过氧化物酶体增殖物激活受体激动剂,显示出类似 CR 的预防皮肤衰老的作用。对 CR 在皮肤生物学中的作用的概述将提供有价值的见解,最终将导致改善皮肤健康。