青少年记忆力差怎么补，磷酯酰丝氨酸精准狙击大脑认知问题，是提升中学生记忆力的好帮手

磷酯酰丝氨酸精准狙击大脑认知问题，

是提升中学生记忆力的好帮手！

【文献解读】

已有研究证明，PS（磷酯酰丝氨酸）可缓解大脑疲劳提高认知。2011年10月中国第三军医大学营养与食品安全中心以牛奶为原料添加PS，探究日常补充PS改善记忆力的可行性。结果证明，PS牛奶可以显著的改善和提高学生的记忆力。

注：干预组试食前后各分量表得分和总分比较

本研究将120名17~18岁中学生随机分为干预组和对照组，进行40天的双盲对照试验。干预组每日服用PS牛奶250 ml，对照组服用等量未添加PS的牛奶，试验前后对受试者进行记忆力评分。结果显示，对照组服用前后各分量表得分和总分差异均无统计学意义，而PS干预组试验后得分比试验前有显著性提高（P<0.05），证明PS牛奶可以明显的改善学生的记忆力，对孩子学习有很大的帮助。

该研究证明，PS确实是一种“大脑营养素”，即使在短时间内补充PS奶，也可以显著提高学生记忆能力。因此，强化PS的补剂在提高记忆力方面有明显的作用。

Phosphatidylserine(PS) is a new resource of food approved by the Ministry of Health in November, 2010, and it is mainly extracted and purified from the by-products of natural soybean oil production. As one of cytomembrane components, PS can affect the fluidity and permeability of cytomembrane and can activate the metabolism and synthesis of multiple enzymes. Also, it can

improve nerve cells, regulate nerve impulse conduction and promote brain memory [1-3]. PS not

only has a significant effect to the physiological cognitive ability and the cognitive ability recovery of injured population, but also can enhance the cognitive ability of non-injured population with a decreasing cognitive ability [4]. In the aspect of metabolic mechanism, after PS

is absorbed by the small intestine, it can release choline. With the blood entering brain, choline is

converted into acetylcholine. Namely, PS can generate phosphatidyl choline by methylation, and

the later can act as the precursor of synthesizing acetylcholine to participate in the regulation of

cytomembrane fluidity and play a medium role between cytomembrane receptor and the second

messenger [5-7]. As acetylcholine content in brain rises, the rate of information transmission

between brain nerve cells increases. It is manifested in the aspect of physiological function that

brain memory is improved, intelligence is enhanced, and brain development is promoted.