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Wang X, Li L, Bian C, Bai M, Yu H, Gao H, Zhao J, Zhang C, Zhao R. Alterations and correlations of gut microbiota, fecal, and serum metabolome characteristics in a rat model of alcohol use disorder. Front Microbiol 2023; 13:1068825. [PMID: 36687619 PMCID: PMC9846065 DOI: 10.3389/fmicb.2022.1068825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/22/2022] [Indexed: 01/05/2023] Open
Abstract
Background Growing evidence suggests the gut microbiota and metabolites in serum or fecal may play a key role in the process of alcohol use disorder (AUD). However, the correlations of gut microbiota and metabolites in both feces and serum in AUD subjects are not well understood. Methods We established a rat model of AUD by a chronic intermittent ethanol voluntary drinking procedure, then the AUD syndromes, the gut microbiota, metabolomic profiling in feces and serum of the rats were examined, and correlations between gut microbiota and metabolites were analyzed. Results Ethanol intake preference increased and maintained at a high level in experimental rats. Anxiety-like behaviors was observed by open field test and elevated plus maze test after ethanol withdraw, indicating that the AUD rat model was successfully developed. The full length 16S rRNA gene sequencing showed AUD significantly changed the β-diversity of gut microbial communities, and significantly decreased the microbial diversity but did not distinctly impact the microbial richness. Microbiota composition significantly changed in AUD rats, such as the abundance of Romboutsia and Turicibacter were significantly increased, whereas uncultured_bacterium_o_Mollicutes_RF39 was decreased. In addition, the untargeted metabolome analysis revealed that many metabolites in both feces and serum were altered in the AUD rats, especially involved in sphingolipid metabolism and glycerophospholipid metabolism pathways. Finally, multiple correlations among AUD behavior, gut microbiota and co-changed metabolites were identified, and the metabolites were directly correlated with the gut microbiota and alcohol preference. Conclusion The altered metabolites in feces and serum are important links between the gut microbiota dysbiosis and alcohol preference in AUD rats, and the altered gut microbiota and metabolites can be potentially new targets for treating AUD.
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Affiliation(s)
- Xiaolong Wang
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Lin Li
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Cong Bian
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Mingjian Bai
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Haitao Yu
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Han Gao
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Jiaxin Zhao
- National and Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, School of Life Sciences, Jilin University, Changchun, China
| | - Chunjing Zhang
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China,*Correspondence: Chunjing Zhang,
| | - Rongjie Zhao
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China,Rongjie Zhao,
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Khodir SA, Faried MA, Abd-Elhafiz HI, Sweed EM. Sitagliptin Attenuates the Cognitive Deficits in L-Methionine-Induced Vascular Dementia in Rats. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7222590. [PMID: 35265716 PMCID: PMC8898801 DOI: 10.1155/2022/7222590] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 01/29/2022] [Indexed: 02/05/2023]
Abstract
Vascular dementia (VaD) is the second most prevalent type of dementia characterized by progressive cognitive deficits and is a major risk factor for the development of Alzheimer's disease and other neurodegenerative disorders. This study is aimed at determining the potential neuroprotective effect of sitagliptin (STG) on cognitive deficits in L-methionine-induced VaD in rats and the possible underlying mechanisms. 30 adult male Wistar albino rats were divided equally (n = 10) into three groups: control, VaD, and VaD + STG groups. The cognitive performance of the animals was conducted by open field, elevated plus maze, Y-maze, novel object recognition, and Morris water maze tests. Serum homocysteine, TNF-α, IL-6, IL-10, total cholesterol, and triglycerides levels were assessed together with hippocampal MDA, SOD, and BDNF. Histopathological and immunohistochemical assessments of the thoracic aorta and hippocampus (CA1 region) were also performed. Chronic L-methionine administration impaired memory and learning and induced anxiety. On the other hand, STG protected against cognitive deficits through improving oxidative stress biomarkers, inflammatory mediators, lipid profiles, and hippocampus level of BDNF as well as decreasing caspase-3 and GFAP and increasing Ki-67 immunoreactions in the hippocampus. Also, STG improved the endothelial dysfunction via upregulation of aortic eNOS immunoreaction. STG improved the cognitive deficits of L-methionine-induced VaD by its antioxidant, anti-inflammatory, antiapoptotic, and neurotrophic effects. These findings suggest that STG may be a promising future agent for protection against VaD.
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Affiliation(s)
- Suzan A. Khodir
- 1Medical Physiology Department, Faculty of Medicine, Menoufia University, Menoufia 32511, Egypt
| | - Manar A. Faried
- 2Human Anatomy and Embryology, Faculty of Medicine, Menoufia University, Menoufia 32511, Egypt
| | - Huda I. Abd-Elhafiz
- 3Clinical Pharmacology Department, Faculty of Medicine, Menoufia University, Menoufia 32511, Egypt
| | - Eman M. Sweed
- 3Clinical Pharmacology Department, Faculty of Medicine, Menoufia University, Menoufia 32511, Egypt
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Cheng J, Zhang M, Cheng S, Li F, Zhang B, Sun X, Hu H, Chen L, Zhao Z, Hu H, Zhang Z. Low-dose alcohol ameliorated high fat diet-induced anxiety-related behavior via enhancing adiponectin expression and activating the Nrf2 pathway. Food Funct 2021; 12:241-251. [PMID: 33295905 DOI: 10.1039/d0fo02704a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Long-term high-fat-diet (HFD)-induced obesity is associated with many comorbidities, such as cognitive impairment and anxiety, which are increasing public health burdens that have gained prevalence in adolescents. Although low-dose alcohol could attenuate the risk of cardiovascular disease, its mechanism on HFD-induced anxiety-related behavior remains not clear. The mice were divided into 4 groups, Control (Con), Alcohol (Alc), HFD and HFD + Alc groups. To verify the effects of low-dose alcohol on HFD-induced anxiety-related behavior, the mice were fed with HFD for 16 weeks. At the beginning of week 13, the HFD-fed mice were administered intragastrically with low-dose alcohol (0.8 g kg-1) for 4 weeks. After 4 weeks of oral administration, low-dose alcohol decreased body weight and Lee's index in HFD-induced obese mice. Moreover, low-dose alcohol alleviated the anxiety-related behaviors of obese mice in the open field test and the elevated plus maze test. The HFD-induced damage to the hippocampus was improved in hematoxylin-eosin staining assay in mice. In addition, low-dose alcohol also suppressed HFD-induced oxidative stress and increased HFD-suppressed adiponectin (APN) expression and nuclear factor erythroid 2-related factor 2 (Nrf2) activation in the hippocampus. Taken together, low-dose alcohol significantly ameliorates HFD-induced obesity, oxidative stress and anxiety-related behavior in mice, which might be related to APN upregulation, Nrf2 activation and related antioxidase expression including SOD1, HO-1, and catalase.
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Affiliation(s)
- Jie Cheng
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.
| | - Meng Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.
| | - Shaoli Cheng
- Basic Medical Experiment Teaching Center, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Fan Li
- Basic Medical Experiment Teaching Center, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Bingyi Zhang
- Basic Medical Experiment Teaching Center, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Xiaoming Sun
- Basic Medical Experiment Teaching Center, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Huijuan Hu
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.
| | - Lina Chen
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China. and Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Xi'an, Shaanxi 710061, China
| | - Zhenghang Zhao
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China. and Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Xi'an, Shaanxi 710061, China
| | - Hao Hu
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China. and Basic Medical Experiment Teaching Center, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China and Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Xi'an, Shaanxi 710061, China
| | - Zhanqin Zhang
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
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