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Walnut Oil Prevents Scopolamine-Induced Memory Dysfunction in a Mouse Model
Molecules ( IF 4.6 ) Pub Date : 2020-04-02 , DOI: 10.3390/molecules25071630
Jianqiao Liao 1 , Yifan Nai 1 , Li Feng 1 , Yimeng Chen 1 , Mei Li 1 , Huaide Xu 1
Affiliation  

For thousands of years, it has been widely believed that walnut is a kind of nut that has benefits for the human body. Walnut oil, accounting for about 70% of walnut, mainly consists of polyunsaturated fatty acids. To investigate the effect of walnut oil on memory impairment in mice, scopolamine (3 mg/kg body weight/d) was used to establish the animal model during Morris Water Maze (MWM) tests. Walnut oil was administrated orally at 10 mL/kg body weight/d for 8 consecutive weeks. The results showed that walnut oil treatment ameliorated the behavior of the memory-impaired mice in the MWM test. Additionally, walnut oil obviously inhibited acetylcholinesterase activity (1.26 ± 0.12 U/mg prot) (p = 0.013) and increased choline acetyltransferase activity (129.75 ± 6.76 U/mg tissue wet weight) in the brains of scopolamine-treated mice (p = 0.024), suggesting that walnut oil could prevent cholinergic function damage in mice brains. Furthermore, walnut oil remarkably prevented the decrease in total superoxide dismutase activity (93.30 ± 5.50 U/mg prot) (p = 0.006) and glutathione content (110.45 ± 17.70 mg/g prot) (p = 0.047) and the increase of malondialdehyde content (13.79 ± 0.96 nmol/mg prot) (p = 0.001) in the brain of scopolamine-treated mice, indicating that walnut oil could inhibit oxidative stress in the brain of mice. Furthermore, walnut oil prevented histological changes of neurons in hippocampal CA1 and CA3 regions induced by scopolamine. These findings indicate that walnut oil could prevent memory impairment in mice, which might be a potential way for the prevention of memory dysfunctions.

中文翻译:

核桃油可预防小鼠模型中东莨菪碱诱导的记忆功能障碍

千百年来,人们普遍认为核桃是一种对人体有益的坚果。核桃油约占核桃的70%,主要由多不饱和脂肪酸组成。为了研究核桃油对小鼠记忆障碍的影响,在莫里斯水迷宫 (MWM) 测试中使用东莨菪碱 (3 mg/kg 体重/天) 建立动物模型。连续 8 周以 10 mL/kg 体重/天的剂量口服核桃油。结果表明,核桃油处理改善了记忆受损小鼠在 MWM 测试中的行为。此外,核桃油明显抑制东莨菪碱处理小鼠大脑中的乙酰胆碱酯酶活性 (1.26 ± 0.12 U/mg prot) (p = 0.013) 并增加胆碱乙酰转移酶活性 (129.75 ± 6.76 U/mg 组织湿重) (p = 0.024) ), 表明核桃油可以防止小鼠大脑的胆碱能功能损伤。此外,核桃油显着阻止总超氧化物歧化酶活性 (93.30 ± 5.50 U/mg prot) (p = 0.006) 和谷胱甘肽含量 (110.45 ± 17.70 mg/g prot) (p = 0.047) 的降低以及丙二醛含量的增加(13.79 ± 0.96 nmol/mg prot) (p = 0.001) 在东莨菪碱治疗的小鼠大脑中,表明核桃油可以抑制小鼠大脑中的氧化应激。此外,核桃油可防止东莨菪碱诱导的海马 CA1 和 CA3 区域神经元的组织学变化。这些发现表明,核桃油可以预防小鼠的记忆障碍,这可能是预防记忆障碍的一种潜在方法。核桃油显着阻止总超氧化物歧化酶活性(93.30 ± 5.50 U/mg prot)(p = 0.006)和谷胱甘肽含量(110.45 ± 17.70 mg/g prot)(p = 0.047)的降低和丙二醛含量的增加(13.79) ± 0.96 nmol/mg prot) (p = 0.001) 在东莨菪碱治疗的小鼠大脑中,表明核桃油可以抑制小鼠大脑中的氧化应激。此外,核桃油可防止东莨菪碱诱导的海马 CA1 和 CA3 区域神经元的组织学变化。这些发现表明,核桃油可以预防小鼠的记忆障碍,这可能是预防记忆障碍的一种潜在方法。核桃油显着阻止总超氧化物歧化酶活性(93.30 ± 5.50 U/mg prot)(p = 0.006)和谷胱甘肽含量(110.45 ± 17.70 mg/g prot)(p = 0.047)的降低和丙二醛含量的增加(13.79) ± 0.96 nmol/mg prot) (p = 0.001) 在东莨菪碱治疗的小鼠大脑中,表明核桃油可以抑制小鼠大脑中的氧化应激。此外,核桃油可防止东莨菪碱诱导的海马 CA1 和 CA3 区域神经元的组织学变化。这些发现表明,核桃油可以预防小鼠的记忆障碍,这可能是预防记忆障碍的一种潜在方法。047) 和东莨菪碱处理小鼠大脑中丙二醛含量的增加 (13.79 ± 0.96 nmol/mg prot) (p = 0.001),表明核桃油可以抑制小鼠大脑中的氧化应激。此外,核桃油可防止东莨菪碱诱导的海马 CA1 和 CA3 区域神经元的组织学变化。这些发现表明,核桃油可以预防小鼠的记忆障碍,这可能是预防记忆障碍的一种潜在方法。047) 和东莨菪碱处理小鼠大脑中丙二醛含量的增加 (13.79 ± 0.96 nmol/mg prot) (p = 0.001),表明核桃油可以抑制小鼠大脑中的氧化应激。此外,核桃油可防止东莨菪碱诱导的海马 CA1 和 CA3 区域神经元的组织学变化。这些发现表明,核桃油可以预防小鼠的记忆障碍,这可能是预防记忆障碍的一种潜在方法。
更新日期:2020-04-02
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