Gallic acid alleviates Alzheimer's disease by inhibiting p38/MAPK signaling pathway

IF 4 2区 农林科学 Q2 FOOD SCIENCE & TECHNOLOGY Journal of Functional Foods Pub Date : 2025-03-21 DOI:10.1016/j.jff.2025.106745
Jiaxin Wang , Qingling Wang , Xinmin Tu , Ruiwen Yang , Jiangning Hu , Jie Kang , Bing Han , Guoyin Kai
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Abstract

Alzheimer's disease (AD) has become a major public health problem worldwide. The effect and mechanism of GA on AD are unclear. We found that GA could inhibit glutamic acid (Glu)-induced neurocyte damage and alleviated disease symptom in D-galactose and AlCl3-induced AD mice. Besides, the doses used for mice can be obtained by human oral administration. GA improved learning and memory abilities while enhanced motor function in AD mice. In addition, GA protected against pathological damage in the hippocampus and cortex tissues of AD mice. The transcriptomic analysis showed that p38/MAPK signaling pathway was involved in GA's protection against AD. Further verification showed that GA significantly inhibited the expression of Gadd45b, Gadd45g, and the phosphorylation of downstream p38 in vitro and in vivo. Together, it suggests that GA can alleviate AD progression by inhibiting p38/MAPK signaling pathway and might be a candidate natural compound for AD prevention.

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没食子酸通过抑制p38/MAPK信号通路缓解阿尔茨海默病
阿尔茨海默病(AD)已成为世界性的重大公共卫生问题。GA对AD的作用及机制尚不清楚。我们发现GA可以抑制谷氨酸(Glu)诱导的AD小鼠神经细胞损伤,减轻d -半乳糖和alcl3诱导的AD小鼠的疾病症状。此外,用于小鼠的剂量可通过人口服给药获得。GA改善了AD小鼠的学习和记忆能力,同时增强了运动功能。此外,GA对AD小鼠海马和皮质组织的病理损伤具有保护作用。转录组学分析表明p38/MAPK信号通路参与了GA对AD的保护作用。进一步验证表明,GA在体外和体内均能显著抑制Gadd45b、Gadd45g的表达以及下游p38的磷酸化。总之,这表明GA可以通过抑制p38/MAPK信号通路来缓解AD的进展,并且可能是AD预防的候选天然化合物。
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tris buffered saline
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Dimethyl sulfoxide
来源期刊
Journal of Functional Foods
Journal of Functional Foods FOOD SCIENCE & TECHNOLOGY-
CiteScore
9.60
自引率
1.80%
发文量
428
审稿时长
76 days
期刊介绍: Journal of Functional Foods continues with the same aims and scope, editorial team, submission system and rigorous peer review. We give authors the possibility to publish their top-quality papers in a well-established leading journal in the food and nutrition fields. The Journal will keep its rigorous criteria to screen high impact research addressing relevant scientific topics and performed by sound methodologies. The Journal of Functional Foods aims to bring together the results of fundamental and applied research into healthy foods and biologically active food ingredients. The Journal is centered in the specific area at the boundaries among food technology, nutrition and health welcoming papers having a good interdisciplinary approach. The Journal will cover the fields of plant bioactives; dietary fibre, probiotics; functional lipids; bioactive peptides; vitamins, minerals and botanicals and other dietary supplements. Nutritional and technological aspects related to the development of functional foods and beverages are of core interest to the journal. Experimental works dealing with food digestion, bioavailability of food bioactives and on the mechanisms by which foods and their components are able to modulate physiological parameters connected with disease prevention are of particular interest as well as those dealing with personalized nutrition and nutritional needs in pathological subjects.
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