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Yuchen-Zhang, Du MR, Zhang QY, Yang SY, Chen JQ, Dan CM, Lian LD, Wang J. Armillariella tabescens-derived polysaccharides alleviated Ɒ-Gal-induced neuroinflammation and cognitive injury through enterocerebral axis and activation of keap-1/Nrf2 pathway. Int J Biol Macromol 2024; 273:133035. [PMID: 38866276 DOI: 10.1016/j.ijbiomac.2024.133035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/14/2024]
Abstract
The early symptoms of neurodegenerative diseases include oxidative stress disorder and accelerated inflammation levels. Edible fungi polysaccharides play essential roles in anti-neuroinflammation. We analyzed the regulatory mechanisms of polysaccharides from extracellular Armillariella tabescens (ATEP) in alleviating neuroinflammation in mice. Mice were induced with d-galactose and aluminum chloride to establish an animal model of Alzheimer's disease, then intragastrically treated with ATEP, which had been previously analyzed for its physicochemical properties. We assessed the critical characteristics of mice treated for neuroinflammation, including cognitive behavior, the anti-inflammatory potential of ATEP in hippocampal pathology and critical protein expression, and changes in fecal microbial composition and metabolites. ATEP intervened in oxidative stress by enhancing antioxidant enzyme activities and suppressing the Keap-1/Nrf2 signaling pathway. Changing the Nrf2 content in the nucleus led to changes in the downstream oxidation-related enzymes, HO-1, NQO-1, iNOS, and COX-2, and the neuronal morphology in CA3 region of the hippocampus. Microbiome analysis revealed that ATEP remodeled the gut microbiotas and regulated the short-chain fatty acids-producing bacteria. Early intervention with ATEP via active dietary supplementation may promote neuroprotection.
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Affiliation(s)
- Yuchen-Zhang
- Food and Function Microbiology Laboratory, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Min-Ru Du
- Food and Function Microbiology Laboratory, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Qian-Yuan Zhang
- Food and Function Microbiology Laboratory, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Shu-Yu Yang
- Food and Function Microbiology Laboratory, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Jia-Qi Chen
- Food and Function Microbiology Laboratory, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Cen-Meng Dan
- Food and Function Microbiology Laboratory, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Ling-Dan Lian
- Food and Function Microbiology Laboratory, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Jie Wang
- Food and Function Microbiology Laboratory, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
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Rai R, Jat D, Mishra SK. Naringenin mitigates aluminum toxicity-induced learning memory impairments and neurodegeneration through amelioration of oxidative stress. J Biochem Mol Toxicol 2024; 38:e23717. [PMID: 38742857 DOI: 10.1002/jbt.23717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 04/08/2024] [Accepted: 05/06/2024] [Indexed: 05/16/2024]
Abstract
Aluminum chloride (AlCl3) is a potent neurotoxic substance known to cause memory impairment and oxidative stress-dependent neurodegeneration. Naringenin (NAR) is a dietary flavonoid with potent antioxidant and anti-inflammatory properties which was implemented against AlCl3-induced neurotoxicity to ascertain its neuroprotective efficacy. Experimental neurotoxicity in mice was induced by exposure of AlCl3 (10 mg/kg, p.o.) followed by treatment with NAR (10 mg/kg, p.o.) for a total of 63 days. Assessed the morphometric, learning memory dysfunction (novel object recognition, T- and Y-maze tests), neuronal oxidative stress, and histopathological alteration in different regions of the brain, mainly cortex, hippocampus, thalamus, and cerebellum. AlCl3 significantly suppressed the spatial learning and memory power which were notably improved by administration of NAR. The levels of oxidative stress parameters nitric oxide, advanced oxidation of protein products, protein carbonylation, lipid peroxidation, superoxide dismutase, catalase, glutathione reductase, reduced glutathione, and the activity of acetylcholine esterase were altered 1.5-3 folds by AlCl3 significantly. Treatment of NAR remarkably restored the level of oxidative stress parameters and maintained the antioxidant defense system. AlCl3 suppressed the expression of neuronal proliferation marker NeuN that was restored by NAR treatment which may be a plausible mechanism. NAR showed therapeutic efficacy as a natural supplement against aluminum-intoxicated memory impairments and histopathological alteration through a mechanism involving an antioxidant defense system and neuronal proliferation.
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Affiliation(s)
- Ravina Rai
- Department of Zoology, School of Biological Sciences, Dr. Harisingh Gour Central University, Sagar, India
| | - Deepali Jat
- Department of Zoology, School of Biological Sciences, Dr. Harisingh Gour Central University, Sagar, India
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Hu L, Ran J, Wang L, Wu M, Wang Z, Xiao H, Du K, Wang Y. Ginsenoside Rg1 attenuates D-galactose-induced neural stem cell senescence via the Sirt1-Nrf2-BDNF pathway. Eur J Neurosci 2023; 58:4084-4101. [PMID: 37753701 DOI: 10.1111/ejn.16147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 08/08/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023]
Abstract
With the ageing of society's population, neurodegenerative diseases have become an important factor affecting the quality of life and mortality in the elderly. Since its physiopathological processes are complex and the authorized medications have recently been shown to have several adverse effects, the development of safe and efficient medications is urgently needed. In this study, we looked at how ginsenoside Rg1 works to postpone neural stem cell ageing and brain ageing, giving it a solid scientific foundation for use as a therapeutic therapy for neurodegenerative diseases.
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Affiliation(s)
- Ling Hu
- Lab of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - Jianhua Ran
- Lab of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
- Neuroscience Research Center, College of basic medicine, Chongqing Medical University, Chongqing, China
| | - Lu Wang
- Lab of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - Mengna Wu
- Neuroscience Research Center, College of basic medicine, Chongqing Medical University, Chongqing, China
| | - Ziling Wang
- Lab of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - Hanxianzhi Xiao
- Lab of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - Kunhang Du
- Lab of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
| | - Yaping Wang
- Lab of Stem Cell and Tissue Engineering, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China
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Protective effect of kaempferol against cognitive and neurological disturbances induced by d-galactose and aluminum chloride in mice. J Funct Foods 2023. [DOI: 10.1016/j.jff.2022.105385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Zhang Y, Huan J, Gao D, Xu S, Han X, Song J, Wang L, Zhang H, Niu Q, Lu X. Blood pressure mediated the effects of cognitive function impairment related to aluminum exposure in Chinese aluminum smelting workers. Neurotoxicology 2022; 91:269-281. [PMID: 35654245 DOI: 10.1016/j.neuro.2022.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVES The aim of this study is to investigate the effects that the Al on blood pressure and the effect of hypertension in aluminum-induced cognitive impairment in electrolytic aluminum worker. METHODS The study was conducted 392 male aluminum electrolytic workers in an aluminum plant of China. The concentration of alumina dust in the air of the electrolytic aluminum workshop is 1.07mg/m3-2.13mg/m3. According to the Permissible concentration-Time Weighted Average of alumina dust is 4mg/ m3, which does not exceed the standard. The blood pressure of the workers was measured. The plasma aluminum concentration of workers was determined by ICP-MS (Inductively Coupled Plasma Mass Spectrometry). Cognitive functions were measured using MMSE (Mini-Mental State Examination), VFT (Verbal Fluency Test), ATIME (Average Reaction Time), FOM (Fuld Object Memory Evaluation), DST (Digit Span Test), CDT (Clock Drawing Test) scales. Modified Poisson regression was used to analyze the risk of hypertension and cognitive impairment with different plasma aluminum concentrations. Generalized linear regression model was used to analyze the relationship between aluminum and cognitive function, blood pressure and cognitive function. Causal Mediation Analysis was used to analyze the mediation effect of blood press in aluminum-induced cognitive impairment. RESULTS Plasma aluminum appeared to be a risk factor for hypertension (PR (prevalence ratio) = 1.630, 95%-CI (confidence interval): 1.103 to 2.407), systolic blood pressure (PR = 1.578, 95%-CI: 1.038 to 2.399) and diastolic blood pressure (PR = 1.842, 95%-CI: 1.153 to 2.944). And plasma aluminum increased by e-fold, the scores of MMSE and VFT decreased by 0.630 and 2.231 units respectively and the time of ATIME increased by 0.029 units. In addition, generalized linear regression model showed that blood press was negatively correlated with the scores of MMSE and VFT. Finally, causal Mediation Analysis showed that hypertension was a part of the mediating factors of aluminum-induced decline in MMSE score, and the mediating effects was 16.300% (7.100%, 33.200%). In addition, hypertension was a part of the mediating factors of aluminum-induced decline in VFT score, and the mediating effects was 9.400% (2.600%, 29.000%) CONCLUSION: Occupational aluminum exposure increases the risk of hypertension and cognitive impairment. And hypertension may be a mediating factor of cognitive impairment caused by aluminum exposure.
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Affiliation(s)
- Yunwei Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; Center for Disease Control and Prevention, Linfen, Shanxi, China
| | - Jiaping Huan
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Dan Gao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Shimeng Xu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Xiao Han
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Jing Song
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Linping Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Huifang Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Xiaoting Lu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
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Liu J, Ye T, Zhang Y, Zhang R, Kong Y, Zhang Y, Sun J. Protective Effect of Ginkgolide B against Cognitive Impairment in Mice via Regulation of Gut Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:12230-12240. [PMID: 34633804 DOI: 10.1021/acs.jafc.1c05038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ginkgolide B (GB) is one of the main bioactive components of Ginkgo biloba leaf extracts with neuroprotective activity. However, the neuroprotective mechanism link between the anti-Alzheimer's disease (AD) efficiency of GB and gut microbiota have remained elusive. Here, we elucidated the effect and possible mechanism of GB against cognitive impairment in mice. Male mice were induced with d-galactose and aluminum chloride to establish an AD animal model, and then intragastrically treated with GB. Cognitive function was assessed by an object recognition test and an open-field test. Amyloid deposition and neuropathological change were detected. The levels of receptor for advanced glycation end products (RAGE), Bcl-2, and Bax were detected. Moreover, microbial compositions were measured by 16s rRNA sequencing. Our results showed that GB significantly alleviated cognitive dysfunction, neurodegeneration, and neuropathological changes in AD model mice. Moreover, GB treatment remarkably reduced the levels of RAGE and Bax and increased the level of Bcl-2 in AD model mice. GB treatment reversed the decreased abundance of Lactobacillus and the increased abundance of Bacteroidales, Muribaculaceae, and Alloprevotella, which led to reconstruction of gut microbiota. These findings demonstrated the neuroprotective effects of GB in AD mice, which were partly mediated by modulating gut dysbiosis, indicating that GB might be a potentially active supplement to alleviate AD.
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Affiliation(s)
- Jiaming Liu
- Department of Neurology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Tao Ye
- Department of Neurology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yuhe Zhang
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Rui Zhang
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yu Kong
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yang Zhang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Jing Sun
- Department of Neurology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
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