Unleash the Power of Autophagy for Longevity and Long-Term Health

释放自噬的力量,实现长寿和长期健康

了解自噬及其好处

 

“自噬”一词源自希腊语,翻译为“自食”。自噬是一种分解代谢过程,可分解和回收细胞成分,有助于产生新细胞。这种自我调节机制,也称为体内平衡,在维持体内健康平衡方面发挥着至关重要的作用。

在自噬过程中,细胞质(细胞核外的一种胶状物质)和称为细胞器的小结构被从细胞中移除并回收。这个过程对于去除不再正常运作的细胞至关重要。自噬的破坏与多种疾病有关,特别是帕金森氏症等神经退行性疾病。

 

Unleash the Power of Autophagy for Longevity and Long-Term Health_Nutriop-Longevity

 

自噬过程的解释


当细胞缺乏足够的营养时,就会触发自噬。该过程由四个阶段组成:

1. 碳封存

称为吞噬泡的双膜结构包围并包围细胞质和细胞器。然后吞噬细胞转变为一种称为自噬体的细胞器。

2. 融合

自噬体与内体融合形成两性体,然后能够与溶酶体融合。

3. 降解

一旦与溶酶体融合,水解酶会分解最初被自噬体包围的物质,从​​而发生降解。所得结构称为自噬溶酶体或自溶酶体。

4. 重复使用

完全降解后,氨基酸被释放到细胞液中,并可以被新细胞重复使用。

这些氨基酸用于 TCA 循环(也称为柠檬酸循环),这是一系列化学反应,是细胞呼吸的主要驱动力。 NAD+ 是我们最畅销的补充剂之一,在大多数 TCA 循环反应中发挥着至关重要的作用。

自噬的不同类型

自噬分为三种类型,每种类型都有不同的特征:

1. 巨自噬

这是指上面概述的一般自噬过程。

2. 微自噬

该过程还吞噬并降解不同的细胞结构,但在隔离过程中不涉及吞噬细胞。相反,溶酶体直接吞噬细胞内容物,将其分解成氨基酸进行回收。

3. 伴侣介导的自噬

这种选择性过程以蛋白质为目标进行降解,伴侣蛋白有助于可降解蛋白质沿着溶酶体膜易位。

自噬在抗衰老和长寿中的作用

自噬是一种应激反应(由细胞饥饿触发),可以使细胞恢复活力,使细胞更加节能、更能抵抗损伤。研究表明,激活自噬可以抑制与年龄相关的细胞缺陷的积累,从而显着提高目标细胞的代谢效率。

自噬还可以针对功能障碍的线粒体,产生有害的活性氧 (ROS),从而导致细胞降解——这一过程称为线粒体自噬。

研究表明,诱导自噬可以延长小鼠的寿命。

自噬的额外好处

除了抗衰老之外,自噬在预防与年龄相关的疾病方面也发挥着关键作用。它可以去除与阿尔茨海默病和帕金森病等神经退行性疾病相关的有毒蛋白质。

自噬还可以通过将损坏的细胞结构分解为氨基酸来防止故障细胞增殖并形成癌症的基础。尽管还需要更多的研究,但许多医学专业人士认为自噬对于预防和治疗癌症至关重要,因为它可以提高基因组的稳定性。

总之,自噬提供了许多已知或推测的好处,包括:

- 调节细胞内的线粒体,增强能量产生。
- 保护免疫和神经系统。
- 预防代谢应激。
- 通过促进新细胞生长,尤其是大脑和心脏中的细胞生长,可能预防心脏病和认知能力下降。
- 通过恢复肠道内壁来预防克罗恩病等炎症性疾病,从而改善消化功能。
- 稳定 DNA 并保护我们的基因。
- 可能预防和治疗各种癌症类型,因为它被认为是一种肿瘤抑制剂。
- 在不增加能量需求的情况下,通过用新细胞使身体恢复活力来减缓衰老。

诱导自噬的方法

考虑到抗衰老之外的众多健康益处,您可能想知道如何触发体内的自噬。自噬是一种应激反应,因此不会严重损害身体的轻微应激可能有利于激活自噬。已经确定了几种有助于诱导自噬的日常措施:

1.营养

人们发现白藜芦醇及其更有效和生物利用度更高的同类紫檀芪可以诱导自噬。
姜黄中的姜黄素和生姜中的 6-姜烯酚已被证明可以激活自噬。
肉桂中的活性成分也被发现可以引发自噬。
咖啡和绿茶中的活性成分已被证明可以增加小鼠的自噬。

2.锻炼

运动已被证明可以诱导小鼠周围肌肉和脑组织的自噬。另一项研究表明,体育锻炼可能会引发参与代谢调节的器官(例如肝脏、肾上腺和甲状腺)的自噬。因此,除了其他健康益处外,心血管锻炼还是让细胞承受“健康”压力和自噬的绝佳方法。

3.间歇性禁食和热量限制

禁食有多种好处,包括降低炎症水平、增强大脑功能和增加 HGH 分泌。这些益处可能不是直接通过禁食实现的,而是作为自噬的副作用实现的。对小鼠的研究表明,可以通过间歇性禁食和热量限制来诱导自噬。因此,频繁的短期禁食可能是对抗神经系统疾病和癌症生长的可行方法。

4.充足的睡眠

自噬也在睡眠期间被触发。昼夜节律与抗衰老直接相关,控制着我们的睡眠周期,并与自噬有关。研究表明,缺乏快速眼动睡眠可能会对神经元的自噬产生负面影响,导致大脑功能改变。扰乱小鼠模型的睡眠也会扰乱它们的自噬蛋白传输。

通过了解自噬的好处并将这些实践融入您的日常生活中,您可以促进长寿和长期健康。

支持自噬的补充剂

除了上述生活方式的改变外,某些补充剂也可能支持自噬。其中一些补充剂包括:

1. NAD+(烟酰胺腺嘌呤二核苷酸)

NAD+ 是一种辅酶,在 TCA(柠檬酸)循环(细胞呼吸的一系列化学反应)内的许多反应中发挥着至关重要的作用。通过补充 NAD+,可以帮助维持 TCA 循环的效率,从而支持自噬并延长寿命。

2. 小檗碱

小檗碱是一种天然化合物,存在于多种植物中,如白毛茛、小檗和俄勒冈葡萄。它已被证明可以激活一种称为 AMP 激活蛋白激酶 (AMPK) 的酶,该酶在诱导自噬中起着至关重要的作用。

3.槲皮素

槲皮素是一种黄酮类化合物,存在于各种水果、蔬菜和谷物中。它已被证明具有抗炎、抗氧化和抗癌特性。一些研究表明,槲皮素可以帮助诱导自噬,为长寿和整体健康提供潜在益处。

4.萝卜硫素

萝卜硫素是一种在西兰花、卷心菜和羽衣甘蓝等十字花科蔬菜中发现的化合物。它已被证明可以激活 NRF2 通路,该通路在细胞防御机制(包括自噬)中发挥着关键作用。

总之,自噬是一个重要的过程,有助于整体健康、长寿和预防与年龄相关的疾病。通过采取均衡饮食、定期锻炼、间歇性禁食、充足睡眠和使用有针对性的补充剂等生活方式,您可以支持自噬并优化身体的自然恢复过程。

 

 

参考:

 

[i] https://www.ncbi.nlm.nih.gov/pubmed/25654554

[ii] https://www.ncbi.nlm.nih.gov/pubmed/24079773

[iii] https://pubmed.ncbi.nlm.nih.gov/23939249/

[iv] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4388596/

[v] https://www.ncbi.nlm.nih.gov/pubmed/25068516

[vi] https://www.sciencedirect.com/science/article/pii/S1021949816301855

[vii] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6028754/

 

[viii] https://pubmed.ncbi.nlm.nih.gov/19799425

 

[ix] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5855773/

[x] https://www.ncbi.nlm.nih.gov/pubmed/24769862

[xi] https://www.ncbi.nlm.nih.gov/pubmed/24489859

[xii] https://pubmed.ncbi.nlm.nih.gov/22892563/

[xiii] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463459/

[xiv] https://www.ncbi.nlm.nih.gov/pubmed/23755298

[xv] https://www.ncbi.nlm.nih.gov/pubmed/8719443

 

[xvi] https://pubmed.ncbi.nlm.nih.gov/27411589/

 

[xvii] https://www.ncbi.nlm.nih.gov/pubmed/20534972 

 

[xviii] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3389582/

 

[xix] https://www.sciencedirect.com/science/article/abs/pii/S1389945719301522

 

[xx] https://www.ncbi.nlm.nih.gov/pubmed/27078501

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