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Green PG, Alvarez P, Levine JD. Probiotics attenuate alcohol-induced muscle mechanical hyperalgesia: Preliminary observations. Mol Pain 2022; 18:17448069221075345. [PMID: 35189754 PMCID: PMC8874179 DOI: 10.1177/17448069221075345] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Alcohol use disorder (AUD) is a major health problem that causes millions of deaths annually world-wide. AUD is considered to be a chronic pain disorder, that is exacerbated by alcohol withdrawal, contributing to a high (∼80%) relapse rate. Chronic alcohol consumption has a marked impact on the gut microbiome, recognized to have a significant effect on chronic pain. We tested the hypothesis that modulating gut microbiota through feeding rats with probiotics can attenuate alcohol-induced muscle mechanical hyperalgesia. To test this hypothesis, rats were fed alcohol (6.5%, 4 days on 3 days off) for 3 weeks, which induced skeletal muscle mechanical hyperalgesia. Following alcohol feeding, at which time nociceptive thresholds were ∼37% below pre-alcohol levels, rats received probiotics in their drinking water, either Lactobacillus Rhamnosus GG (Culturelle) or De Simone Formulation (a mixture of 8 bacterial species) for 8 days; control rats received plain water to drink. When muscle mechanical nociceptive threshold was evaluated 1 day after beginning probiotic feeding, nociceptive thresholds were significantly higher than rats not receiving probiotics. Mechanical nociceptive thresholds continued to increase during probiotic feeding, with thresholds approaching pre-alcohol levels 5 days after starting probiotics; nociceptive threshold in rats not receiving probiotics remained low. After probiotics were removed from the drinking water, nociceptive thresholds gradually decreased in these two groups, although they remained higher than the group not treated with probiotic (21 days after ending alcohol feeding). These observations suggest that modification of gut microbiota through probiotic feeding has a marked effect on chronic alcohol-induced muscle mechanical hyperalgesia. Our results suggest that administration of probiotics to individuals with AUD may reduce pain associated with alcohol consumption and withdrawal, and may be a novel therapeutic intervention to reduce the high rate of relapse seen in individuals with AUD attempting to abstain from alcohol.
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Affiliation(s)
- Paul G Green
- Departments of Oral and Maxillofacial Surgery, 8785University of California San Francisco, San Francisco, CA, USA.,Departments of Preventative and Restorative Dental Sciences, 8785University of California San Francisco, San Francisco, CA, USA.,Division of Neuroscience, 8785University of California San Francisco, San Francisco, CA, USA
| | - Pedro Alvarez
- Departments of Oral and Maxillofacial Surgery, 8785University of California San Francisco, San Francisco, CA, USA.,Division of Neuroscience, 8785University of California San Francisco, San Francisco, CA, USA
| | - Jon D Levine
- Departments of Oral and Maxillofacial Surgery, 8785University of California San Francisco, San Francisco, CA, USA.,Division of Neuroscience, 8785University of California San Francisco, San Francisco, CA, USA.,Departments of Medicine, 8785University of California San Francisco, San Francisco, CA, USA
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202
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Zhou J, Wu X, Li Z, Zou Z, Dou S, Li G, Yan F, Chen B, Li Y. Alterations in Gut Microbiota Are Correlated With Serum Metabolites in Patients With Insomnia Disorder. Front Cell Infect Microbiol 2022; 12:722662. [PMID: 35252021 PMCID: PMC8892143 DOI: 10.3389/fcimb.2022.722662] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 01/31/2022] [Indexed: 12/29/2022] Open
Abstract
This study aimed to investigate insomnia-related alterations in gut microbiota and their association with serum metabolites. A total of 24 patients with insomnia disorder and 22 healthy controls were recruited. The fecal and serum samples were collected. The 16s rRNA sequencing and bioinformatics analysis were conducted to explore insomnia-related changes in the diversity, structure, and composition of the gut microbiota. UPLC-MS was performed to identify insomnia-related serum metabolites. Spearman correlation analysis was used to investigate the correlations between insomnia-related gut bacteria and the serum metabolites. Despite the nonsignificant changes in the diversity and structure of gut microbiota, insomnia disorder patients had significantly decreased family Bacteroidaceae, family Ruminococcaceae, and genus Bacteroides, along with significantly increased family Prevotellaceae and genus Prevotella, compared with healthy controls. Genus Gemmiger and genus Fusicatenibacter were dominant in patients with insomnia disorder, whereas genus Coprococcus, genus Oscillibacter, genus Clostridium XI, and family Peptostreptococcaceae were dominant in healthy controls. The UPLC-MS analysis identified 97 significantly decreased metabolites and 74 significantly increased metabolites in the serum samples of patients with insomnia disorder, compared with those of healthy controls. KEGG enrichment analysis revealed 1 significantly upregulated metabolic pathway and 16 downregulated metabolic pathways in patients with insomnia disorder. Furthermore, Spearman correlation analysis unveiled significant correlations among the altered bacteria genus and serum metabolites. Patients with insomnia disorder have differential gut microbiota and serum metabolic profiles compared with healthy controls. The alterations in gut microbiota were correlated with specific serum metabolites, suggesting that some serum metabolites might mediate gut microbiota-brain communication in the pathogenesis of insomnia disorder.
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Affiliation(s)
- Jing Zhou
- Department of Health Management, Henan Key Laboratory of Chronic Disease Health Management, Henan Provincial People’s Hospital, Henan University People’s Hospital, Zhengzhou, China
| | - Xiaoling Wu
- Department of Nuclear Medicine, Henan Key Laboratory of Chronic Disease Health Management, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Zhonglin Li
- Department of Radiology, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Zhi Zou
- Department of Radiology, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Shewei Dou
- Department of Medical Imaging, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Gang Li
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Fengshan Yan
- Department of Medical Imaging, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Bairu Chen
- Department of Radiology, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Yongli Li
- Department of Health Management, Henan Key Laboratory of Chronic Disease Health Management, Henan Provincial People’s Hospital, Henan University People’s Hospital, Zhengzhou, China
- *Correspondence: Yongli Li,
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203
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Zhu Y, Wang X, Zhu L, Tu Y, Chen W, Gong L, Pan T, Lin H, Lin J, Sun H, Ge Y, Wei L, Guo Y, Lu C, Chen Y, Xu L. Lactobacillus rhamnosus GG combined with inosine ameliorates alcohol-induced liver injury through regulation of intestinal barrier and Treg/Th1 cells. Toxicol Appl Pharmacol 2022; 439:115923. [PMID: 35176292 DOI: 10.1016/j.taap.2022.115923] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Intestinal epithelial barrier disruption and bacterial translocation exacerbates the progression of alcoholic liver disease. Lactobacillus rhamnosus GG (LGG), a probiotic, has been shown benefits in chronic liver disease and in regulating gut dysbiosis. Previous studies showed the protective roles of LGG in ethanol-disrupted gut barrier functions and liver injury. Inosine, a metabolite produced by intestinal bacteria, has the anti-inflammatory and immunregulatory functions. In this study, the synergistic effect of LGG and inosine was investigated in a mouse model of alcohol-induced liver disease (ALD). METHODS Male C57BL/6 mice were fed with a Lieber-DeCarli diet containing 5% alcohol for four weeks to establish a model of alcohol-induced liver injury. LGG or a combination of LGG and inosine were administrated orally to explore a new therapeutic method for alcohol-induced liver disease and to investigate the underlying mechanisms. Liver damage was evaluated by transaminases and pathological changes. Tight junction proteins, composition of the gut microbiome, cytokines, lipopolysaccharides (LPS), glutathione (GSH), superoxide dismutase (SOD), malondialdehyde (MDA), F4/80+ macrophages, as well as p38, Jun N-terminal kinase (JNK), were determined by qRT-PCR, RNAseq, ELISA, IHC and western blot. Regulatory T (Treg) cells were characterized by positive staining of CD4, CD25 and Foxp3 using flow cytometry. IFN-γ-producing CD4+ T (Th1) cells were examined by intracellular cytokine staining. RESULTS Alcohol consumption induced elevated liver enzymes, steatosis and inflammation, while LGG combined with inosine treatment was more significant to ameliorate these symptoms compared with LGG alone. When LGG combined with inosine were administered to ALD mice, intestinal microecology significantly improved reflected by intestinal villi and tight junction proteins recovery and the restoration of intestinal flora. Combined therapy inhibited phosphorylation of p38 and JNK to alleviate hepatic inflammation. Moreover, flow cytometry analysis showed that long-term excessive alcohol consumption reduced Tregs population while increased Th1 population, which was restored by a combination of LGG and inosine treatment. CONCLUSIONS The findings from the study indicate that the combined LGG and inosine treatment ameliorates ALD by improving the gut ecosystem, intestinal barrier function, immune homeostasis and liver injury.
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Affiliation(s)
- Yin Zhu
- Department of Infectious Diseases and liver Diseases, Ningbo Medical Centre Lihuili Hospital, Affiliated Lihuili Hospital of Ningbo University, Ningbo Institute of Innovation for Combined Medicine and Engineering, Ningbo 315040, China; Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Hepatology Institute of Wenzhou Medical University, Wenzhou 325025, China
| | - Xiaozhi Wang
- Department of General and Gastrointestinal Surgery, The Affiliated Mindong Hospital of Fujian Medical University, Fujian 355000, China
| | - Lujian Zhu
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Hepatology Institute of Wenzhou Medical University, Wenzhou 325025, China
| | - Yulu Tu
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Hepatology Institute of Wenzhou Medical University, Wenzhou 325025, China
| | - Wanting Chen
- Department of Infectious Diseases and liver Diseases, Ningbo Medical Centre Lihuili Hospital, Affiliated Lihuili Hospital of Ningbo University, Ningbo Institute of Innovation for Combined Medicine and Engineering, Ningbo 315040, China
| | - Lingwen Gong
- Department of Infectious Diseases and liver Diseases, Ningbo Medical Centre Lihuili Hospital, Affiliated Lihuili Hospital of Ningbo University, Ningbo Institute of Innovation for Combined Medicine and Engineering, Ningbo 315040, China
| | - Tongtong Pan
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Hepatology Institute of Wenzhou Medical University, Wenzhou 325025, China
| | - Hongwei Lin
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Hepatology Institute of Wenzhou Medical University, Wenzhou 325025, China
| | - Jing Lin
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Hepatology Institute of Wenzhou Medical University, Wenzhou 325025, China
| | - Huiling Sun
- Department of Infectious Diseases and Liver Diseases, Lishui City People's Hospital, Lishui 323020, China
| | - Yuli Ge
- Department of Infectious Diseases and Liver Diseases, Lishui City People's Hospital, Lishui 323020, China
| | - Li Wei
- Department of Infectious Diseases and liver Diseases, Ningbo Medical Centre Lihuili Hospital, Affiliated Lihuili Hospital of Ningbo University, Ningbo Institute of Innovation for Combined Medicine and Engineering, Ningbo 315040, China
| | - Yu Guo
- Department of Infectious Diseases and liver Diseases, Ningbo Medical Centre Lihuili Hospital, Affiliated Lihuili Hospital of Ningbo University, Ningbo Institute of Innovation for Combined Medicine and Engineering, Ningbo 315040, China
| | - Caide Lu
- Department of Hepatobiliary and Pancreatic Surgery, Ningbo Medical Centre Lihuili Hospital, Affiliated Lihuili Hospital of Ningbo University, Ningbo 315040, China.
| | - Yongping Chen
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Hepatology Institute of Wenzhou Medical University, Wenzhou 325025, China.
| | - Lanman Xu
- Department of Infectious Diseases and liver Diseases, Ningbo Medical Centre Lihuili Hospital, Affiliated Lihuili Hospital of Ningbo University, Ningbo Institute of Innovation for Combined Medicine and Engineering, Ningbo 315040, China; Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory for Accurate Diagnosis and Treatment of Chronic Liver Diseases, Hepatology Institute of Wenzhou Medical University, Wenzhou 325025, China.
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Li X, Chen LM, Kumar G, Zhang SJ, Zhong QH, Zhang HY, Gui G, Wu LL, Fan HZ, Sheng JW. Therapeutic Interventions of Gut-Brain Axis as Novel Strategies for Treatment of Alcohol Use Disorder Associated Cognitive and Mood Dysfunction. Front Neurosci 2022; 16:820106. [PMID: 35185459 PMCID: PMC8847450 DOI: 10.3389/fnins.2022.820106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/10/2022] [Indexed: 11/25/2022] Open
Abstract
Alcohol use disorders (AUD) is characterized by persistent or intermittent alcohol cravings and compulsive drinking. The functional changes in the central nervous system (CNS) after alcohol consumption are alcohol-associated cognitive impairment and mood disorders, which are major health issues reported in AUDs. Studies have shown that transferring the intestinal microbiota from AUDs patients to germ-free animals causes learning and memory dysfunction, depression and anxiety-like behavior, indicating the vital role of intestinal microbiota in development of neuropsychiatric disorders in AUD. Intestinal flora composition of AUD patients are significantly different from normal people, suggesting that intestinal flora imbalance orchestrate the development of neuropsychiatric disorders in AUD. Studies suggests that gut microbiome links bidirectional signaling network of the enteric nervous system (ENS) to central nervous system (CNS), forming gut-microbe-brain axis (brain-gut axis). In this review, we discussed pathogenesis and possible treatment of AUD-induced cognitive deficits, anxiety, and depression disorders. Further, we described the mechanism of intestinal flora imbalance and dysfunction of hippocampus-amygdala-frontal cortex (gut-limbic circuit system dysfunction). Therefore, we postulate therapeutic interventions of gut-brain axis as novel strategies for treatment of AUD-induced neuropsychiatric disorders.
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Affiliation(s)
- Xin Li
- Department of Gastroenterology, The People’s Hospital of Zhangshu City, Jiangxi, China
| | - Le-Mei Chen
- Department of Pharmacy, Guangdong Provincial People’s Hospital Ganzhou Hospital, Ganzhou Municipal Hospital, Jiangxi, China
| | - Gajendra Kumar
- Department of Neuroscience, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Shan-Jin Zhang
- Department of Gastroenterology, The People’s Hospital of Yichun City, Jiangxi, China
| | - Quan-hai Zhong
- School of Chemistry and Bioengineering, Yichun University, Jiangxi, China
| | - Hong-Yan Zhang
- School of Chemistry and Bioengineering, Yichun University, Jiangxi, China
| | - Guan Gui
- Department of Gastroenterology, The People’s Hospital of Yichun City, Jiangxi, China
| | - Lv-Le Wu
- Department of Gastroenterology, The People’s Hospital of Yichun City, Jiangxi, China
| | - Hui-Zhen Fan
- Department of Gastroenterology, The People’s Hospital of Yichun City, Jiangxi, China
- School of Chemistry and Bioengineering, Yichun University, Jiangxi, China
- *Correspondence: Hui-Zhen Fan,
| | - Jian-Wen Sheng
- Department of Gastroenterology, The People’s Hospital of Yichun City, Jiangxi, China
- Jian-Wen Sheng,
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205
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Zhang Y, Wang Z, Dong Y, Cao J, Chen Y. Blue Light Alters the Composition of the Jejunal Microbiota and Promotes the Development of the Small Intestine by Reducing Oxidative Stress. Antioxidants (Basel) 2022; 11:274. [PMID: 35204158 PMCID: PMC8868333 DOI: 10.3390/antiox11020274] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 02/06/2023] Open
Abstract
Environmental light has an important impact on the growth, development and oxidative stress of chicks. Thus, we investigated the effects of colored lights on microbes and explored the molecular mechanism by which external color light information alters the gut microbiota and induces the cell response in vivo. We raised 96 chicks under 400-700 nm white (WL), 660 nm red (RL), 560 nm green (GL) or 480 nm blue light (BL) for 42 days. We used 16S rRNA high-throughput pyrosequencing and gas chromatography to explore the effect of different monochromatic lights on the jejunal microbiota. We used qRT-PCR, western blotting, immunohistochemistry and Elisa to determine the effect of different monochromatic lights on small intestine development and oxidative stress levels. With consistency in the upregulation of antioxidant enzyme ability and anti-inflammatory cytokine level, the 16S rRNA and gas chromatography results showed that BL significantly increased the diversity and richness of the jejunal microbiota and improved the relative abundances of Faecalibacterium, Ruminiclostridium_9 and metabolite butyrate content compared with WL, RL and GL (p < 0.05). In addition, we observed that BL increased the goblet cell numbers, PCNA cell numbers, villus-length-to-crypt-depth (V/C) ratios, ZO-1, Occludin, and Claudin-1 protein expression; decreased permeability; and enhanced the digestion and absorption capacity in the jejunum (p < 0.05). In the in vitro experiment, we found that butyrate promoted chick small intestinal epithelial cell (CIEC) proliferation and inhibited apoptosis (p < 0.05). These responses were abrogated by the Gi inhibitor, PI3K inhibitor or AKT inhibitor, but were mimicked by GPR43 agonists or the GSK-3β inhibitor (p < 0.05). Overall, these findings suggested that BL increased the relative abundance of Faecalibacterium, Ruminiclostridium_9 and butyrate production. Butyrate may act as one of the signals to mediate blue-light-induced small intestinal development and mucosal barrier integrity enhancement and promote cell proliferation via the GPR43/Gi/PI3K/AKT/p-GSK-3β/β-catenin pathway.
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Affiliation(s)
| | | | | | | | - Yaoxing Chen
- Laboratory of Anatomy of Domestic Animals, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (Y.Z.); (Z.W.); (Y.D.); (J.C.)
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206
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Abstract
Intestinal microbiota, dominated by bacteria, plays an important role in the occurrence and the development of alcohol-associated liver disease (ALD), which is one of the most common liver diseases around the world. With sufficient studies focusing on the gut bacterial community, chronic alcohol consumption is now known as a key factor that alters the composition of gut bacterial community, increases intestinal permeability, causes intestinal dysfunction, induces bacterial translocation, and exacerbates the process of ALD via gut-liver axis. However, gut non-bacterial communities including fungi, viruses, and archaea, which may also participate in the disease, has received little attention relative to the gut bacterial community. This paper will systematically collect the latest literatures reporting non-bacterial communities in mammalian health and disease, and review their mechanisms in promoting the development of ALD including CLEC7A pathway, Candidalysin (a peptide toxin secreted by Candida albicans), metabolites, and other chemical substances secreted or regulated by gut commensal mycobiome, virome, and archaeome, hoping to bring novel insights on our current knowledge of ALD.
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Affiliation(s)
- Wenkang Gao
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yixin Zhu
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Jin Ye
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huikuan Chu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,CONTACT Huikuan Chu Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
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207
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Shen TCD, Daniel SG, Patel S, Kaplan E, Phung L, Lemelle-Thomas K, Chau L, Herman L, Trisolini C, Stonelake A, Toal E, Khungar V, Bittinger K, Reddy KR, Wu GD. The Mucosally-Adherent Rectal Microbiota Contains Features Unique to Alcohol-Related Cirrhosis. Gut Microbes 2022; 13:1987781. [PMID: 34747331 PMCID: PMC8583005 DOI: 10.1080/19490976.2021.1987781] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Most studies examining correlations between the gut microbiota and disease states focus on fecal samples due to ease of collection, yet there are distinct differences when compared to samples collected from the colonic mucosa. Although fecal microbiota has been reported to be altered in cirrhosis, correlation with mucosal microbiota characterized via rectal swab has not been previously described in this patient population. We conducted a cross-sectional analysis using 39 stool and 39 rectal swabs from adult patients with cirrhosis of different etiologies and performed shotgun metagenomic sequencing. Bacterial growth studies were performed with Escherichia coli. Two asaccharolytic bacterial taxa, Finegoldia magna and Porphyromonas asaccharolytica, were increased in rectal swabs relative to stool (FDR < 0.01). Genomic analysis of the microbiome revealed 58 genes and 16 pathways that differed between stool and rectal swabs (FDR < 0.05), where rectal swabs were enriched for pathways associated with protein synthesis and cellular proliferation but decreased in carbohydrate metabolism. Although no features in the fecal microbiome differentiated cirrhosis etiologies, the mucosal microbiome revealed decreased abundances of E. coli and Enterobacteriaceae in alcohol-related cirrhosis relative to non-alcohol related cirrhosis (FDR < 0.05). In vitro bacterial culture studies showed that physiological concentrations of ethanol and its oxidative metabolites inhibited E. coli growth in a pH- and concentration-dependent manner. Characterization of the mucosally associated gut microbiome via rectal swab revealed findings consistent with amino acid/nitrogen abundance versus carbohydrate limitation in the mucosal microenvironment as well as unique features of alcohol-related cirrhosis possibly consistent with the influence of host-derived metabolites on the composition of mucosally adherent microbiota.
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Affiliation(s)
- Ting-Chin David Shen
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA,CONTACT Ting-Chin David Shen 906 BRB II/III, 421 Curie Blvd, Philadelphia, PA19104, USA
| | - Scott G. Daniel
- Division of Gastroenterology, Hepatology, and Nutrition, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Shivali Patel
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Emily Kaplan
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Lillian Phung
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Kaylin Lemelle-Thomas
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Lillian Chau
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Lindsay Herman
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Calvin Trisolini
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Aimee Stonelake
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Emily Toal
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Vandana Khungar
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - K. Rajender Reddy
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Gary D. Wu
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA,Gary Wu 915 BRB II/III, 421 Curie Blvd, Philadelphia, PA19104, USA
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Yanckello LM, Fanelli B, McCulloch S, Xing X, Sun M, Hammond TC, Colwell R, Gu Z, Ericsson AC, Chang YH, Bachstetter AD, Lin AL. Inulin Supplementation Mitigates Gut Dysbiosis and Brain Impairment Induced by Mild Traumatic Brain Injury during Chronic Phase. JOURNAL OF CELLULAR IMMUNOLOGY 2022; 4:50-64. [PMID: 35611116 PMCID: PMC9126115 DOI: 10.33696/immunology.4.132] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Mild traumatic brain injury (mTBI) has been shown to acutely alter the gut microbiome diversity and composition, known as dysbiosis, which can further exacerbate metabolic and vascular changes in the brain in both humans and rodents. However, it remains unknown how mTBI affects the gut microbiome in the chronic phase recovery (past one week post injury). It is also unknown if injury recovery can be improved by mitigating dysbiosis. The goal of the study is to fill the knowledge gap. First, we aim to understand how mTBI alters the gut microbiome through the chronic period of recovery (3 months post injury). In addition, as the gut microbiome can be modulated by diet, we also investigated if prebiotic inulin, a fermentable fiber that promotes growth of beneficial bacteria and metabolites, would mitigate dysbiosis, improve systemic metabolism, and protect brain structural and vascular integrity when administered after 3 months post closed head injury (CHI). We found that CHI given to male mice at 4 months of age induced gut dysbiosis which peaked at 1.5 months post injury, reduced cerebral blood flow (CBF) and altered brain white matter integrity. Interestingly, we also found that Sham mice had transient dysbiosis, which peaked 24 hours after injury and then normalized. After 8 weeks of inulin feeding, CHI mice had increased abundance of beneficial/anti-inflammatory bacteria, reduced abundance of pathogenic bacteria, enriched levels of short-chain fatty acids, and restored CBF in both hippocampi and left thalamus, compared to the CHI-control fed and Sham groups. Using machine learning, we further identified top bacterial species that separate Sham and CHI mice with and without the diet. Our results indicate that there is an injury- and time-dependent dysbiosis between CHI and Sham mice; inulin is effective to mitigate dysbiosis and improve brain injury recovery in the CHI mice. As there are currently no effective treatments for mTBI, the study may have profound implications for developing therapeutics or preventive interventions in the future.
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Affiliation(s)
- Lucille M. Yanckello
- Sanders Brown Center on Aging, University of Kentucky, Lexington, KY, United States of America
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States of America
| | - Brian Fanelli
- CosmosID Inc., Rockville, MD, United States of America
| | | | - Xin Xing
- Sanders Brown Center on Aging, University of Kentucky, Lexington, KY, United States of America
- Department of Computer Science, University of Kentucky, Lexington, KY, United States of America
| | - McKenna Sun
- Sanders Brown Center on Aging, University of Kentucky, Lexington, KY, United States of America
| | - Tyler C. Hammond
- Sanders Brown Center on Aging, University of Kentucky, Lexington, KY, United States of America
- Department of Neuroscience, University of Kentucky, Lexington, KY, United States of America
| | - Rita Colwell
- CosmosID Inc., Rockville, MD, United States of America
| | - Zezong Gu
- Department of Pathology & Anatomical Sciences, University of Missouri, Columbia, MO, United States of America
- Harry S. Truman Memorial Veteran Hospital, Columbia, MO, United States of America
| | - Aaron C. Ericsson
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO, United States of America
| | - Ya-Hsuan Chang
- Sanders Brown Center on Aging, University of Kentucky, Lexington, KY, United States of America
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States of America
| | - Adam D. Bachstetter
- Sanders Brown Center on Aging, University of Kentucky, Lexington, KY, United States of America
- Department of Neuroscience, University of Kentucky, Lexington, KY, United States of America
- Spinal Cord and Brain Injury Research Center, University of Kentucky, KY, United States of America
| | - Ai-Ling Lin
- Sanders Brown Center on Aging, University of Kentucky, Lexington, KY, United States of America
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States of America
- Department of Radiology, University of Missouri, Columbia, MO, United States of America
- Institute for Data Science &Informatics, University of Missouri, Columbia, MO United States of America
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Amadieu C, Coste V, Neyrinck AM, Thijssen V, Leyrolle Q, Bindels LB, Piessevaux H, Stärkel P, de Timary P, Delzenne NM, Leclercq S. Restoring an adequate dietary fiber intake by inulin supplementation: a pilot study showing an impact on gut microbiota and sociability in alcohol use disorder patients. Gut Microbes 2022; 14:2007042. [PMID: 34923905 PMCID: PMC8726664 DOI: 10.1080/19490976.2021.2007042] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/25/2021] [Indexed: 02/08/2023] Open
Abstract
Alcohol use disorder (AUD) is a chronic relapsing disease associated with malnutrition, metabolic disturbances, and gut microbiota alterations that are correlated with the severity of psychological symptoms. This study aims at supplementing AUD patients with prebiotic fiber during alcohol withdrawal, in order to modulate the gut microbiota composition and to evaluate its effect on gastrointestinal tolerance, metabolism, and patient's behavior. A randomized, double-blind, placebo-controlled study included 50 AUD patients assigned to inulin versus maltodextrin daily supplementation for 17 days. Biological measurements (fecal microbial 16S rDNA sequencing, serum biology), dietary intake, validated psychological questionnaires, and gastrointestinal tolerance assessment were performed before and after the intervention. Inulin significantly decreased the richness and evenness and induced changes of 8 genera (q < 0.1) including Bifidobacterium and Bacteroides. Prebiotic had minor effects on gastrointestinal symptoms and nutritional intakes compared to placebo. All patients showed an improvement in depression, anxiety, and craving scores during alcohol withdrawal regardless of the intervention group. Interestingly, only patients treated with inulin significantly improved the sociability score and had an increased serum level of brain-derived neurotrophic factor. This pilot study shows that inulin is well tolerated and modulates the gut microbiota and the social behavior in AUD patients, without further improving other psychological and biological parameters as compared to placebo. Gut2Brain study, clinicaltrial.gov: NCT03803709, https://clinicaltrials.gov/ct2/show/NCT03803709.
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Affiliation(s)
- Camille Amadieu
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
- Institute of Neuroscience, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
| | - Valentin Coste
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
| | - Audrey M. Neyrinck
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
| | - Victoria Thijssen
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
| | - Quentin Leyrolle
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
| | - Laure B. Bindels
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
| | - Hubert Piessevaux
- Department of Hepato-Gastroenterology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
- Institute of Experimental and Clinical Research, Laboratory of Hepato-Gastroenterology, Université Catholique De Louvain, UCLouvain, Belgium
| | - Peter Stärkel
- Department of Hepato-Gastroenterology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
- Institute of Experimental and Clinical Research, Laboratory of Hepato-Gastroenterology, Université Catholique De Louvain, UCLouvain, Belgium
| | - Philippe de Timary
- Institute of Neuroscience, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
- Department of Adult Psychiatry, Cliniques Universitaires Saint Luc, Brussels, Belgium
| | - Nathalie M. Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
| | - Sophie Leclercq
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
- Institute of Neuroscience, Université Catholique De Louvain, UCLouvain, Brussels, Belgium
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210
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Role of Microbiota-Derived Metabolites in Alcoholic and Non-Alcoholic Fatty Liver Diseases. Int J Mol Sci 2021; 23:ijms23010426. [PMID: 35008852 PMCID: PMC8745242 DOI: 10.3390/ijms23010426] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/28/2021] [Accepted: 12/28/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic liver disease encompasses diseases that have various causes, such as alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD). Gut microbiota dysregulation plays a key role in the pathogenesis of ALD and NAFLD through the gut-liver axis. The gut microbiota consists of various microorganisms that play a role in maintaining the homeostasis of the host and release a wide number of metabolites, including short-chain fatty acids (SCFAs), peptides, and hormones, continually shaping the host's immunity and metabolism. The integrity of the intestinal mucosal and vascular barriers is crucial to protect liver cells from exposure to harmful metabolites and pathogen-associated molecular pattern molecules. Dysbiosis and increased intestinal permeability may allow the liver to be exposed to abundant harmful metabolites that promote liver inflammation and fibrosis. In this review, we introduce the metabolites and components derived from the gut microbiota and discuss their pathologic effect in the liver alongside recent advances in molecular-based therapeutics and novel mechanistic findings associated with the gut-liver axis in ALD and NAFLD.
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211
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Portincasa P, Bonfrate L, Khalil M, Angelis MD, Calabrese FM, D’Amato M, Wang DQH, Di Ciaula A. Intestinal Barrier and Permeability in Health, Obesity and NAFLD. Biomedicines 2021; 10:83. [PMID: 35052763 PMCID: PMC8773010 DOI: 10.3390/biomedicines10010083] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/20/2021] [Accepted: 12/28/2021] [Indexed: 02/07/2023] Open
Abstract
The largest surface of the human body exposed to the external environment is the gut. At this level, the intestinal barrier includes luminal microbes, the mucin layer, gastrointestinal motility and secretion, enterocytes, immune cells, gut vascular barrier, and liver barrier. A healthy intestinal barrier is characterized by the selective permeability of nutrients, metabolites, water, and bacterial products, and processes are governed by cellular, neural, immune, and hormonal factors. Disrupted gut permeability (leaky gut syndrome) can represent a predisposing or aggravating condition in obesity and the metabolically associated liver steatosis (nonalcoholic fatty liver disease, NAFLD). In what follows, we describe the morphological-functional features of the intestinal barrier, the role of major modifiers of the intestinal barrier, and discuss the recent evidence pointing to the key role of intestinal permeability in obesity/NAFLD.
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Affiliation(s)
- Piero Portincasa
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (L.B.); (M.K.); (A.D.C.)
| | - Leonilde Bonfrate
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (L.B.); (M.K.); (A.D.C.)
| | - Mohamad Khalil
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (L.B.); (M.K.); (A.D.C.)
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (M.D.A.); (F.M.C.)
| | - Maria De Angelis
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (M.D.A.); (F.M.C.)
| | - Francesco Maria Calabrese
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/a, 70126 Bari, Italy; (M.D.A.); (F.M.C.)
| | - Mauro D’Amato
- Gastrointestinal Genetics Lab, CIC bioGUNE-BRTA, 48160 Derio, Spain;
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - David Q.-H. Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, New York, NY 10461, USA;
| | - Agostino Di Ciaula
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (L.B.); (M.K.); (A.D.C.)
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212
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Bi C, Xiao G, Liu C, Yan J, Chen J, Si W, Zhang J, Liu Z. Molecular Immune Mechanism of Intestinal Microbiota and Their Metabolites in the Occurrence and Development of Liver Cancer. Front Cell Dev Biol 2021; 9:702414. [PMID: 34957088 PMCID: PMC8693382 DOI: 10.3389/fcell.2021.702414] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 11/11/2021] [Indexed: 12/12/2022] Open
Abstract
Intestinal microorganisms are closely associated with immunity, metabolism, and inflammation, and play an important role in health and diseases such as inflammatory bowel disease, diabetes, cardiovascular disease, Parkinson’s disease, and cancer. Liver cancer is one of the most fatal cancers in humans. Most of liver cancers are slowly transformed from viral hepatitis, alcoholic liver disease, and non-alcoholic fatty liver disease. However, the relationship between intestinal microbiota and their metabolites, including short-chain fatty acids, bile acids, indoles, and ethanol, and liver cancer remains unclear. Here, we summarize the molecular immune mechanism of intestinal microbiota and their metabolites in the occurrence and development of liver cancer and reveal the important role of the microbiota-gut-liver axis in liver cancer. In addition, we describe how the intestinal flora can be balanced by antibiotics, probiotics, postbiotics, and fecal bacteria transplantation to improve the treatment of liver cancer. This review describes the immunomolecular mechanism of intestinal microbiota and their metabolites in the occurrence and development of hepatic cancer and provides theoretical evidence support for future clinical practice.
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Affiliation(s)
- Chenchen Bi
- Department of Pharmacology, Medical College of Shaoxing University, Shaoxing, China
| | - Geqiong Xiao
- Department of Oncology, Affiliated Hospital of Shaoxing University, Shaoxing, China
| | - Chunyan Liu
- Department of Clinical Medicine, Shaoxing People's Hospital, Shaoxing, China
| | - Junwei Yan
- Department of Pharmacology, Medical College of Shaoxing University, Shaoxing, China
| | - Jiaqi Chen
- Department of Pharmacology, Medical College of Shaoxing University, Shaoxing, China
| | - Wenzhang Si
- Department of General Surgery, Affiliated Hospital of Shaoxing University, Shaoxing, China
| | - Jian Zhang
- Department of Pharmacology, Medical College of Shaoxing University, Shaoxing, China
| | - Zheng Liu
- Department of Pharmacology, Medical College of Shaoxing University, Shaoxing, China
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213
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Yan J, Ouyang J, Isnard S, Zhou X, Harypursat V, Routy JP, Chen Y. Alcohol Use and Abuse Conspires With HIV Infection to Aggravate Intestinal Dysbiosis and Increase Microbial Translocation in People Living With HIV: A Review. Front Immunol 2021; 12:741658. [PMID: 34975838 PMCID: PMC8718428 DOI: 10.3389/fimmu.2021.741658] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022] Open
Abstract
The intestinal microbiome is an essential so-called human "organ", vital for the induction of innate immunity, for metabolizing nutrients, and for maintenance of the structural integrity of the intestinal barrier. HIV infection adversely influences the richness and diversity of the intestinal microbiome, resulting in structural and functional impairment of the intestinal barrier and an increased intestinal permeability. Pathogens and metabolites may thus cross the "leaky" intestinal barrier and enter the systemic circulation, which is a significant factor accounting for the persistent underlying chronic inflammatory state present in people living with HIV (PLWH). Additionally, alcohol use and abuse has been found to be prevalent in PLWH and has been strongly associated with the incidence and progression of HIV/AIDS. Recently, converging evidence has indicated that the mechanism underlying this phenomenon is related to intestinal microbiome and barrier function through numerous pathways. Alcohol acts as a "partner" with HIV in disrupting microbiome ecology, and thus impairing of the intestinal barrier. Optimizing the microbiome and restoring the integrity of the intestinal barrier is likely to be an effective adjunctive therapeutic strategy for PLWH. We herein critically review the interplay among HIV, alcohol, and the gut barrier, thus setting the scene with regards to development of effective strategies to counteract the dysregulated gut microbiome and the reduction of microbial translocation and inflammation in PLWH.
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Affiliation(s)
- Jiangyu Yan
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
| | - Jing Ouyang
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
| | - Stéphane Isnard
- Infectious Diseases and Immunity in Global Health Program, Research Institute, McGill University Health Centre, Montréal, QC, Canada
- Chronic Viral Illness Service, McGill University Health Centre, Montréal, QC, Canada
- Canadian HIV Trials Network (CTN), Canadian Institutes of Health Research (CIHR), Vancouver, BC, Canada
| | - Xin Zhou
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
| | - Vijay Harypursat
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
| | - Jean-Pierre Routy
- Infectious Diseases and Immunity in Global Health Program, Research Institute, McGill University Health Centre, Montréal, QC, Canada
- Chronic Viral Illness Service, McGill University Health Centre, Montréal, QC, Canada
- Division of Hematology, McGill University Health Centre, Montréal, QC, Canada
| | - Yaokai Chen
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China
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214
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Pizarro N, Kossatz E, González P, Gamero A, Veza E, Fernández C, Gabaldón T, de la Torre R, Robledo P. Sex-Specific Effects of Synbiotic Exposure in Mice on Addictive-Like Behavioral Alterations Induced by Chronic Alcohol Intake Are Associated With Changes in Specific Gut Bacterial Taxa and Brain Tryptophan Metabolism. Front Nutr 2021; 8:750333. [PMID: 34901109 PMCID: PMC8662823 DOI: 10.3389/fnut.2021.750333] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/11/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic alcohol intake has been shown to disrupt gut microbiota homeostasis, but whether microbiota modulation could prevent behavioral alterations associated with chronic alcohol intake remains unknown. We investigated the effects of synbiotic dietary supplementation on the development of alcohol-related addictive behavior in female and male mice and evaluated whether these effects were associated with changes in bacterial species abundance, short-chain fatty acids, tryptophan metabolism, and neurotransmitter levels in the prefrontal cortex and hippocampus. Chronic intermittent exposure to alcohol during 20 days induced escalation of intake in both female and male mice. Following alcohol deprivation, relapse-like behavior was observed in both sexes, but anxiogenic and cognitive deficits were present only in females. Synbiotic treatment reduced escalation and relapse to alcohol intake in females and males. In addition, the anxiogenic-like state and cognitive deficits observed in females following alcohol deprivation were abolished in mice exposed to synbiotic. Alcohol-induced differential alterations in microbial diversity and abundance in both sexes. In females, synbiotic exposure abrogated the alterations provoked by alcohol in Prevotellaceae UCG-001 and Ruminococcaceae UCG-014 abundance. In males, synbiotic exposure restored the changes induced by alcohol in Akkermansia and Muribaculum uncultured bacterium abundance. Following alcohol withdrawal, tryptophan metabolites, noradrenaline, dopamine, and γ-aminobutyric acid concentrations in the prefrontal cortex and the hippocampus were correlated with bacterial abundance and behavioral alterations in a sex-dependent manner. These results suggested that a dietary intervention with a synbiotic to reduce gut dysbiosis during chronic alcohol intake may impact differently the gut-brain-axis in females and males.
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Affiliation(s)
- Nieves Pizarro
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain.,Department of Experimental and Health Sciences, Pompeu Fabra University (CEXS-UPF), Barcelona, Spain
| | - Elk Kossatz
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain
| | | | - Alba Gamero
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain.,Department of Experimental and Health Sciences, Pompeu Fabra University (CEXS-UPF), Barcelona, Spain
| | - Emma Veza
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Cristina Fernández
- Department of Experimental and Health Sciences, Pompeu Fabra University (CEXS-UPF), Barcelona, Spain
| | - Toni Gabaldón
- Barcelona Supercomputing Centre (BSC-CNS), Barcelona, Spain.,Institute for Research in Biomedicine, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Rafael de la Torre
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain.,Department of Experimental and Health Sciences, Pompeu Fabra University (CEXS-UPF), Barcelona, Spain.,CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Patricia Robledo
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain.,Department of Experimental and Health Sciences, Pompeu Fabra University (CEXS-UPF), Barcelona, Spain
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215
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Rodríguez-González A, Vitali F, Moya M, De Filippo C, Passani MB, Orio L. Effects of Alcohol Binge Drinking and Oleoylethanolamide Pretreatment in the Gut Microbiota. Front Cell Infect Microbiol 2021; 11:731910. [PMID: 34888256 PMCID: PMC8651011 DOI: 10.3389/fcimb.2021.731910] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/26/2021] [Indexed: 01/27/2023] Open
Abstract
Introduction Chronic alcohol consumption is known to cause gut dysbiosis (changes in microbiota composition and/or function, disruptive of the normal host–microbiota interactions). However, little is known about the changes that alcohol binge drinking induces in the gut microbiota. Here, we have tested the hypothesis that a protocol of alcohol binge drinking, known to induce neuroinflammation in previous studies, also promotes intestinal dysbiosis, and we explored how oleoylethanolamide (OEA, an acylethanolamide proven to counteract alcohol binge drinking-induced neuroinflammation) pretreatment modulates alcohol-induced dysbiosis. Methods Alcohol binges were forced by gavage three times per day during 4 consecutive days; OEA pretreatment (intraperitoneal or intragastric) was administered before each alcohol gavage. Stool microbiota composition was assessed by next-generation 16S rRNA gene sequencing, prior and after the 4-day alcohol binge protocol. Results Alcohol binge drinking reduced the richness of the gut microbiota and changed the microbial community, reducing Lactobacillus among other genera. Pretreatment with OEA in the alcohol-administered rats decreased the richness, evenness, and Shannon indices to a greater extent with respect to alcohol alone, also changing the community structure. Microbial interactions in the association network were further decreased following OEA administration in the alcohol group, with respect to the water administration. The synergistic interaction between alcohol binge and OEA was affected by the route of administration of OEA, since oral and i.p. administrations differently changed the community structure. Conclusion Results suggest that alcohol binge drinking produces a clear dysbiosis in animals; we observed that the well-known protective actions of OEA in the context of alcohol abuse might not be related to OEA-induced changes in alcohol-induced dysbiosis. These are observational results, and thus, further research will be needed for a complete understanding of the biological significance of the observed changes.
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Affiliation(s)
- Alicia Rodríguez-González
- Laboratory of Psychobiology, Department of Psychobiology and Methods in Behavioral Science, Faculty of Psychology, Complutense University of Madrid, Madrid, Spain
| | - Francesco Vitali
- Institute of Agricultural Biology and Biotechnology (IBBA), National Research Council (CNR), Pisa, Italy
| | - Marta Moya
- Laboratory of Psychobiology, Department of Psychobiology and Methods in Behavioral Science, Faculty of Psychology, Complutense University of Madrid, Madrid, Spain
| | - Carlotta De Filippo
- Institute of Agricultural Biology and Biotechnology (IBBA), National Research Council (CNR), Pisa, Italy
| | | | - Laura Orio
- Laboratory of Psychobiology, Department of Psychobiology and Methods in Behavioral Science, Faculty of Psychology, Complutense University of Madrid, Madrid, Spain.,Red de Trastornos Adictivos (RTA), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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216
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Barb JJ, Maki KA, Kazmi N, Meeks BK, Krumlauf M, Tuason RT, Brooks AT, Ames NJ, Goldman D, Wallen GR. The oral microbiome in alcohol use disorder: a longitudinal analysis during inpatient treatment. J Oral Microbiol 2021; 14:2004790. [PMID: 34880965 PMCID: PMC8648028 DOI: 10.1080/20002297.2021.2004790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background Alcohol use disorder (AUD)-induced disruption of oral microbiota can lead to poor oral health; there have been no studies published examining the longitudinal effects of alcohol use cessation on the oral microbiome. Aim To investigate the oral microbiome during alcohol cessation during inpatient treatment for AUD. Methods Up to 10 oral tongue brushings were collected from 22 AUD patients during inpatient treatment at the National Institutes of Health. Alcohol use history, smoking, and periodontal disease status were measured. Oral microbiome samples were sequenced using 16S rRNA gene sequencing. Results Alpha diversity decreased linearly during treatment across the entire cohort (P = 0.002). Alcohol preference was associated with changes in both alpha and beta diversity measures. Characteristic tongue dorsum genera from the Human Microbiome Project such as Streptococcus, Prevotella, Veillonella and Haemophilus were highly correlated in AUD. Oral health-associated genera that changed longitudinally during abstinence included Actinomyces, Capnocytophaga, Fusobacterium, Neisseria and Prevotella. Conclusion The oral microbiome in AUD is affected by alcohol preference. Patients with AUD often have poor oral health but abstinence and attention to oral care improve dysbiosis, decreasing microbiome diversity and periodontal disease-associated genera while improving acute oral health.
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Affiliation(s)
- J J Barb
- Translational Biobehavioral and Health Disparities Branch, National Institutes of Health, Clinical Center, Bethesda, MD, USA
| | - K A Maki
- Translational Biobehavioral and Health Disparities Branch, National Institutes of Health, Clinical Center, Bethesda, MD, USA
| | - N Kazmi
- Translational Biobehavioral and Health Disparities Branch, National Institutes of Health, Clinical Center, Bethesda, MD, USA
| | - B K Meeks
- Translational Biobehavioral and Health Disparities Branch, National Institutes of Health, Clinical Center, Bethesda, MD, USA
| | - M Krumlauf
- Translational Biobehavioral and Health Disparities Branch, National Institutes of Health, Clinical Center, Bethesda, MD, USA
| | - R T Tuason
- Translational Biobehavioral and Health Disparities Branch, National Institutes of Health, Clinical Center, Bethesda, MD, USA
| | - A T Brooks
- Center for Scientific Review, National Institutes of Health, Bethesda, Md, USA
| | - N J Ames
- National Institutes of Health, Clinical Center, Bethesda, MD, USA
| | - D Goldman
- Office of the Clinical Director, Laboratory of Neurogenetics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Md, USA
| | - G R Wallen
- Translational Biobehavioral and Health Disparities Branch, National Institutes of Health, Clinical Center, Bethesda, MD, USA
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217
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Zhu X, Huang J, Huang S, Wen Y, Lan X, Wang X, Lu C, Wang Z, Fan N, Shang D. Combining Metabolomics and Interpretable Machine Learning to Reveal Plasma Metabolic Profiling and Biological Correlates of Alcohol-Dependent Inpatients: What About Tryptophan Metabolism Regulation? Front Mol Biosci 2021; 8:760669. [PMID: 34859050 PMCID: PMC8630631 DOI: 10.3389/fmolb.2021.760669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Alcohol dependence (AD) is a condition of alcohol use disorder in which the drinkers frequently develop emotional symptoms associated with a continuous alcohol intake. AD characterized by metabolic disturbances can be quantitatively analyzed by metabolomics to identify the alterations in metabolic pathways. This study aimed to: i) compare the plasma metabolic profiling between healthy and AD-diagnosed individuals to reveal the altered metabolic profiles in AD, and ii) identify potential biological correlates of alcohol-dependent inpatients based on metabolomics and interpretable machine learning. Plasma samples were obtained from healthy (n = 42) and AD-diagnosed individuals (n = 43). The plasma metabolic differences between them were investigated using liquid chromatography-tandem mass spectrometry (AB SCIEX® QTRAP 4500 system) in different electrospray ionization modes with scheduled multiple reaction monitoring scans. In total, 59 and 52 compounds were semi-quantitatively measured in positive and negative ionization modes, respectively. In addition, 39 metabolites were identified as important variables to contribute to the classifications using an orthogonal partial least squares-discriminant analysis (OPLS-DA) (VIP > 1) and also significantly different between healthy and AD-diagnosed individuals using univariate analysis (p-value < 0.05 and false discovery rate < 0.05). Among the identified metabolites, indole-3-carboxylic acid, quinolinic acid, hydroxy-tryptophan, and serotonin were involved in the tryptophan metabolism along the indole, kynurenine, and serotonin pathways. Metabolic pathway analysis revealed significant changes or imbalances in alanine, aspartate, glutamate metabolism, which was possibly the main altered pathway related to AD. Tryptophan metabolism interactively influenced other metabolic pathways, such as nicotinate and nicotinamide metabolism. Furthermore, among the OPLS-DA-identified metabolites, normetanephrine and ascorbic acid were demonstrated as suitable biological correlates of AD inpatients from our model using an interpretable, supervised decision tree classifier algorithm. These findings indicate that the discriminatory metabolic profiles between healthy and AD-diagnosed individuals may benefit researchers in illustrating the underlying molecular mechanisms of AD. This study also highlights the approach of combining metabolomics and interpretable machine learning as a valuable tool to uncover potential biological correlates. Future studies should focus on the global analysis of the possible roles of these differential metabolites and disordered metabolic pathways in the pathophysiology of AD.
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Affiliation(s)
- Xiuqing Zhu
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Jiaxin Huang
- Department of Substance Dependence, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Shanqing Huang
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Yuguan Wen
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Xiaochang Lan
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China.,Department of Substance Dependence, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Xipei Wang
- Department of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Chuanli Lu
- Guangzhou Rely Medical Diagnostic Technology Co. Ltd., Guangzhou, China
| | - Zhanzhang Wang
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Ni Fan
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China.,Department of Substance Dependence, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Dewei Shang
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
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218
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Hsu CL, Duan Y, Fouts DE, Schnabl B. Intestinal virome and therapeutic potential of bacteriophages in liver disease. J Hepatol 2021; 75:1465-1475. [PMID: 34437908 PMCID: PMC8929164 DOI: 10.1016/j.jhep.2021.08.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/20/2021] [Accepted: 08/02/2021] [Indexed: 12/19/2022]
Abstract
Humans harbour a large quantity of microbes in the intestinal tract and have evolved symbiotic relationships with many of them. However, several specific bacterial pathobionts are associated with liver disease pathogenesis. Although bacteriophages (phages) and eukaryotic viruses (collectively known as "the virome") outnumber bacteria and fungi in the intestine, little is known about the intestinal virome in patients with liver disease. As natural predators of bacteria, phages can precisely edit the bacterial microbiota. Hence, there is interest in using them to target bacterial pathobionts in several diseases, including those of the liver. Herein, we will summarise changes in the faecal virome associated with fatty liver diseases and cirrhosis, and describe the therapeutic potential of phages and potential challenges to their clinical application.
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Affiliation(s)
- Cynthia L Hsu
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Yi Duan
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | | | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, CA, USA; Department of Medicine, VA San Diego Healthcare System, San Diego, CA, USA.
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219
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Piacentino D, Grant-Beurmann S, Vizioli C, Li X, Moore CF, Ruiz-Rodado V, Lee MR, Joseph PV, Fraser CM, Weerts EM, Leggio L. Gut microbiome and metabolome in a non-human primate model of chronic excessive alcohol drinking. Transl Psychiatry 2021; 11:609. [PMID: 34853299 PMCID: PMC8636625 DOI: 10.1038/s41398-021-01728-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 10/27/2021] [Accepted: 11/05/2021] [Indexed: 02/08/2023] Open
Abstract
A relationship between the gut microbiome and alcohol use disorder has been suggested. Excessive alcohol use produces changes in the fecal microbiome and metabolome in both rodents and humans. Yet, these changes can be observed only in a subgroup of the studied populations, and reversal does not always occur after abstinence. We aimed to analyze fecal microbial composition and function in a translationally relevant baboon model of chronic heavy drinking that also meets binge criteria (drinking too much, too fast, and too often), i.e., alcohol ~1 g/kg and blood alcohol levels (BALs) ≥ 0.08 g/dL in a 2-hour period, daily, for years. We compared three groups of male baboons (Papio anubis): L = Long-term alcohol drinking group (12.1 years); S = Short-term alcohol drinking group (2.7 years); and C = Control group, drinking a non-alcoholic reinforcer (Tang®) (8.2 years). Fecal collection took place during 3 days of Drinking (D), followed by a short period (3 days) of Abstinence (A). Fecal microbial alpha- and beta-diversity were significantly lower in L vs. S and C (p's < 0.05). Members of the commensal families Lachnospiraceae and Prevotellaceae showed a relative decrease, whereas the opportunistic pathogen Streptococcus genus showed a relative increase in L vs. S and C (p's < 0.05). Microbiota-related metabolites of aromatic amino acids, tricarboxylic acid cycle, and pentose increased in L vs. S and C (FDR-corrected p < 0.01), with the latter two suggesting high energy metabolism and enhanced glycolysis in the gut lumen in response to alcohol. Consistent with the long-term alcohol exposure, mucosal damage and oxidative stress markers (N-acetylated amino acids, 2-hydroxybutyrate, and metabolites of the methionine cycle) increased in L vs. S and C (FDR-corrected p < 0.01). Overall, S showed few differences vs. C, possibly due to the long-term, chronic alcohol exposure needed to alter the normal gut microbiota. In the three groups, the fecal microbiome barely differed between conditions D and A, whereas the metabolome shifted in the transition from condition D to A. In conclusion, changes in the fecal microbiome and metabolome occur after significant long-term excessive drinking and are only partially affected by acute forced abstinence from alcohol. These results provide novel information on the relationship between the fecal microbiome and metabolome in a controlled experimental setting and using a unique non-human primate model of chronic excessive alcohol drinking.
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Affiliation(s)
- Daria Piacentino
- grid.94365.3d0000 0001 2297 5165Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, 251 Bayview Blvd, Baltimore, MD 21224 USA ,grid.94365.3d0000 0001 2297 5165Center on Compulsive Behaviors, National Institutes of Health, 10 Center Dr, Bethesda, MD 20892 USA
| | - Silvia Grant-Beurmann
- grid.411024.20000 0001 2175 4264Institute for Genome Sciences, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD USA
| | - Carlotta Vizioli
- grid.420085.b0000 0004 0481 4802Sensory Science and Metabolism Unit, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research and National Institute of Nursing Research Division of Intramural Research, 10 Center Dr, Bethesda, MD 20892 USA
| | - Xiaobai Li
- grid.94365.3d0000 0001 2297 5165Biostatistics and Clinical Epidemiology Services, National Institutes of Health, Bethesda, MD USA
| | - Catherine F. Moore
- grid.21107.350000 0001 2171 9311Division of Behavioral Biology, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Nathan Shock Drive, Baltimore, MD 21224 USA
| | - Victor Ruiz-Rodado
- grid.94365.3d0000 0001 2297 5165Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr, Bethesda, MD 20892 USA
| | - Mary R. Lee
- grid.94365.3d0000 0001 2297 5165Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, 251 Bayview Blvd, Baltimore, MD 21224 USA
| | - Paule V. Joseph
- grid.420085.b0000 0004 0481 4802Sensory Science and Metabolism Unit, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research and National Institute of Nursing Research Division of Intramural Research, 10 Center Dr, Bethesda, MD 20892 USA
| | - Claire M. Fraser
- grid.411024.20000 0001 2175 4264Institute for Genome Sciences, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD USA
| | - Elise M. Weerts
- grid.21107.350000 0001 2171 9311Division of Behavioral Biology, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Nathan Shock Drive, Baltimore, MD 21224 USA
| | - Lorenzo Leggio
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, 251 Bayview Blvd, Baltimore, MD, 21224, USA. .,Center on Compulsive Behaviors, National Institutes of Health, 10 Center Dr, Bethesda, MD, 20892, USA. .,Medication Development Program, National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, 251 Bayview Blvd, Baltimore, MD, 21224, USA. .,Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University School of Public Health, 121 South Main Street, Providence, RI, USA. .,Division of Addiction Medicine, Department of Medicine, Johns Hopkins University School of Medicine, 733 N Broadway, Baltimore, MD, 21205, USA. .,Department of Neuroscience, Georgetown University Medical Center, 3970 Reservoir Rd NW, Washington, DC, 20007, USA.
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220
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Cuesta CM, Pascual M, Pérez-Moraga R, Rodríguez-Navarro I, García-García F, Ureña-Peralta JR, Guerri C. TLR4 Deficiency Affects the Microbiome and Reduces Intestinal Dysfunctions and Inflammation in Chronic Alcohol-Fed Mice. Int J Mol Sci 2021; 22:ijms222312830. [PMID: 34884634 PMCID: PMC8657603 DOI: 10.3390/ijms222312830] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 12/21/2022] Open
Abstract
Chronic alcohol abuse causes an inflammatory response in the intestinal tract with damage to the integrity of the mucosa and epithelium, as well as dysbiosis in the gut microbiome. However, the role of gut bacteria in ethanol effects and how these microorganisms interact with the immune system are not well understood. The aim of the present study was to evaluate if TLR4 alters the ethanol-induced intestinal inflammatory response, and whether the response of this receptor affects the gut microbiota profile. We analyzed the 16S rRNA sequence of the fecal samples from wild-type (WT) and TLR4-knockout (TLR4-KO) mice with and without ethanol intake for 3 months. The results demonstrated that chronic ethanol consumption reduces microbiota diversity and causes dysbiosis in WT mice. Likewise, ethanol upregulates several inflammatory genes (IL-1β, iNOS, TNF-α) and miRNAs (miR-155-5p, miR-146a-5p) and alters structural and permeability genes (INTL1, CDH1, CFTR) in the colon of WT mice. Our results further demonstrated that TLR4-KO mice exhibit a different microbiota that can protect against the ethanol-induced activation of the immune system and colon integrity dysfunctions. In short, our results reveal that TLR4 is a key factor for determining the gut microbiota, which can participate in dysbiosis and the inflammatory response induced by alcohol consumption.
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Affiliation(s)
- Carlos M. Cuesta
- Department of Molecular and Cellular Pathology of Alcohol, Prince Felipe Research Center, 46012 Valencia, Spain; (C.M.C.); (M.P.); (I.R.-N.)
| | - María Pascual
- Department of Molecular and Cellular Pathology of Alcohol, Prince Felipe Research Center, 46012 Valencia, Spain; (C.M.C.); (M.P.); (I.R.-N.)
- Department of Physiology, School of Medicine and Dentistry, University of Valencia, 15 Avda. Blasco Ibanez, 46010 Valencia, Spain
| | - Raúl Pérez-Moraga
- Bioinformatics and Biostatistics Unit, Prince Felipe Research Center, 46012 Valencia, Spain; (R.P.-M.); (F.G.-G.)
| | - Irene Rodríguez-Navarro
- Department of Molecular and Cellular Pathology of Alcohol, Prince Felipe Research Center, 46012 Valencia, Spain; (C.M.C.); (M.P.); (I.R.-N.)
| | - Francisco García-García
- Bioinformatics and Biostatistics Unit, Prince Felipe Research Center, 46012 Valencia, Spain; (R.P.-M.); (F.G.-G.)
| | - Juan R. Ureña-Peralta
- Department of Molecular and Cellular Pathology of Alcohol, Prince Felipe Research Center, 46012 Valencia, Spain; (C.M.C.); (M.P.); (I.R.-N.)
- Correspondence: (J.R.U.-P.); (C.G.)
| | - Consuelo Guerri
- Department of Molecular and Cellular Pathology of Alcohol, Prince Felipe Research Center, 46012 Valencia, Spain; (C.M.C.); (M.P.); (I.R.-N.)
- Correspondence: (J.R.U.-P.); (C.G.)
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221
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Maccioni L, Leclercq IA, Schnabl B, Stärkel P. Host Factors in Dysregulation of the Gut Barrier Function during Alcohol-Associated Liver Disease. Int J Mol Sci 2021; 22:12687. [PMID: 34884492 PMCID: PMC8657823 DOI: 10.3390/ijms222312687] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/18/2021] [Accepted: 11/23/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic alcohol consumption and alcohol-associated liver disease (ALD) represent a major public health problem worldwide. Only a minority of patients with an alcohol-use disorder (AUD) develop severe forms of liver disease (e.g., steatohepatitis and fibrosis) and finally progress to the more advanced stages of ALD, such as severe alcohol-associated hepatitis and decompensated cirrhosis. Emerging evidence suggests that gut barrier dysfunction is multifactorial, implicating microbiota changes, alterations in the intestinal epithelium, and immune dysfunction. This failing gut barrier ultimately allows microbial antigens, microbes, and metabolites to translocate to the liver and into systemic circulation. Subsequent activation of immune and inflammatory responses contributes to liver disease progression. Here we review the literature about the disturbance of the different host defense mechanisms linked to gut barrier dysfunction, increased microbial translocation, and impairment of liver and systemic inflammatory responses in the different stages of ALD.
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Affiliation(s)
- Luca Maccioni
- Laboratory of Hepato-Gastroenterology, Institute of Experimental and Clinical Research, UCLouvain, Unversité Catholique de Louvain, 1200 Brussels, Belgium; (L.M.); (I.A.L.)
| | - Isabelle A. Leclercq
- Laboratory of Hepato-Gastroenterology, Institute of Experimental and Clinical Research, UCLouvain, Unversité Catholique de Louvain, 1200 Brussels, Belgium; (L.M.); (I.A.L.)
| | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA;
- Department of Medicine, VA San Diego Healthcare System, San Diego, CA 92161, USA
| | - Peter Stärkel
- Laboratory of Hepato-Gastroenterology, Institute of Experimental and Clinical Research, UCLouvain, Unversité Catholique de Louvain, 1200 Brussels, Belgium; (L.M.); (I.A.L.)
- Department of Hepato-Gastroenterology, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
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222
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Deng D, Su H, Song Y, Chen T, Sun Q, Jiang H, Zhao M. Altered Fecal Microbiota Correlated With Systemic Inflammation in Male Subjects With Methamphetamine Use Disorder. Front Cell Infect Microbiol 2021; 11:783917. [PMID: 34869080 PMCID: PMC8637621 DOI: 10.3389/fcimb.2021.783917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/02/2021] [Indexed: 01/01/2023] Open
Abstract
Methamphetamine use disorder (MUD) is a major public health problem worldwide with limited effective treatment options. Previous studies have reported methamphetamine-associated alterations in gut microbiota. A potential role of gut microbiota in regulating methamphetamine-induced brain dysfunction through interactions with the host immune system has been proposed, but evidence for this hypothesis is limited. The present study aimed to investigate the alterations in the fecal microbiota and explore its relationship with systemic inflammation in MUD. Fecal samples were obtained from 26 male subjects with MUD and 17 sex- and age- matched healthy controls. Fecal microbial profiles were analyzed by 16S rRNA sequencing. Plasma inflammatory markers were measured using enzyme-linked immunosorbent assay. Associations between fecal microbiota, systemic inflammatory markers and clinical characteristics were examined by Spearman partial correlation analysis while controlling for possible confounders. Compared with healthy controls, individuals with MUD showed no difference in fecal microbial diversity, but exhibited differences in the relative abundance of several microbial taxa. At the genus level, a higher abundance of Collinsella, Odoribacter and Megasphaera and lower levels of Faecalibacterium, Blautia, Dorea and Streptococcus were detected in subjects with MUD. More importantly, altered fecal microbiota was found to be correlated with plasma levels of CRP, IL-2, IL-6 and IL-10. The order Lactobacillales, exhibiting lower abundance in participants with MUD, was positively related to the duration of methamphetamine abstinence and the plasma level of anti-inflammatory cytokine IL-10. This study is the first to provide evidence for a link between altered fecal microbiota and systemic inflammation in MUD. Further elucidation of interactions between gut microbiota and the host immune system may be beneficial for the development of novel therapeutic approaches for MUD.
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Affiliation(s)
- Di Deng
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hang Su
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuehong Song
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianzhen Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qianqian Sun
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Haifeng Jiang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Zhao
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China
- CAS Center for Excellence in Brain Science and Intelligence Technology (CEBSIT), Chinese Academy of Sciences, Shanghai, China
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223
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Kuracha MR, Thomas P, Tobi M, McVicker BL. Role of cell-free network communication in alcohol-associated disorders and liver metastasis. World J Gastroenterol 2021; 27:7080-7099. [PMID: 34887629 PMCID: PMC8613644 DOI: 10.3748/wjg.v27.i41.7080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/02/2021] [Accepted: 09/30/2021] [Indexed: 02/06/2023] Open
Abstract
The aberrant use of alcohol is a major factor in cancer progression and metastasis. Contributing mechanisms include the systemic effects of alcohol and the exchange of bioactive molecules between cancerous and non-cancerous cells along the brain-gut-liver axis. Such interplay leads to changes in molecular, cellular, and biological functions resulting in cancer progression. Recent investigations have examined the role of extracellular vesicles (EVs) in cancer mechanisms in addition to their contribution as diagnostic biomarkers. Also, EVs are emerging as novel cell-free mediators in pathophysiological scenarios including alcohol-mediated gut microbiome dysbiosis and the release of nanosized EVs into the circulatory system. Interestingly, EVs in cancer patients are enriched with oncogenes, miRNA, lipids, and glycoproteins whose delivery into the hepatic microenvironment may be enhanced by the detrimental effects of alcohol. Proof-of-concept studies indicate that alcohol-associated liver disease is impacted by the effects of exosomes, including altered immune responses, reprogramming of stromal cells, and remodeling of the extracellular matrix. Moreover, the culmination of alcohol-related changes in the liver likely contributes to enhanced hepatic metastases and poor outcomes for cancer patients. This review summarizes the numerous aspects of exosome communications between organs with emphasis on the relationship of EVs in alcohol-associated diseases and cancer metastasis. The potential impact of EV cargo and release along a multi-organ axis is highly relevant to the promotion of tumorigenic mechanisms and metastatic disease. It is hypothesized that EVs target recipient tissues to initiate the formation of prometastatic niches and cancer progression. The study of alcohol-associated mechanisms in metastatic cancers is expected to reveal a better understanding of factors involved in the growth of secondary malignancies as well as novel approaches for therapeutic interventions.
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Affiliation(s)
- Murali R Kuracha
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Peter Thomas
- Department of Surgery, Creighton University School of Medicine, Omaha, NE 68178, United States
| | - Martin Tobi
- Research and Development Service, Detroit VAMC, Detroit, MI 48201, United States
- Department of Medicine, Central Michigan University College of Medicine, Detroit, MI 48201, United States
| | - Benita L McVicker
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, United States
- Research Service, Nebraska-Western Iowa Health Care System, Omaha, NE 68105, United States
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224
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Zhang J, Yang Y, Han H, Zhang L, Wang T. Bisdemethoxycurcumin attenuates lipopolysaccharide-induced intestinal damage through improving barrier integrity, suppressing inflammation, and modulating gut microbiota in broilers. J Anim Sci 2021; 99:6401757. [PMID: 34664650 DOI: 10.1093/jas/skab296] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/16/2021] [Indexed: 02/07/2023] Open
Abstract
Bisdemethoxycurcumin has good antioxidant and anti-inflammatory effects and has been widely used as food and feed supplements in the form of curcuminoids. However, the beneficial effect of individual bisdemethoxycurcumin on preventing lipopolysaccharide (LPS)-induced inflamed intestinal damage is unclear. The present study aimed to investigate whether dietary bisdemethoxycurcumin supplementation could attenuate LPS-induced intestinal damage and alteration of cecal microbiota in broiler chickens. In total, 320 one-day-old male Arbor Acres broiler chickens with a similar weight were randomly divided into four treatments. The treatments were designed as a 2 × 2 factorial arrangement: basal diet (CON); 150 mg/kg bisdemethoxycurcumin diet (BUR); LPS challenge + basal diet (LPS); LPS challenge + 150 mg/kg bisdemethoxycurcumin diet (L-BUR). Results showed that dietary bisdemethoxycurcumin supplementation attenuated the LPS-induced decrease of average daily feed intake. LPS challenge compromised the intestinal morphology and disrupted the intestinal tight junction barrier. Dietary bisdemethoxycurcumin supplementation significantly increased villus length:crypt depth ratio and upregulated the mRNA expression of intestinal tight junction proteins. Moreover, a remarkably reduced mRNA expression of inflammatory mediators was observed following bisdemethoxycurcumin supplementation. The cecal microbiota analysis showed that bisdemethoxycurcumin supplementation increased the relative abundance of the genus Faecalibacterium while decreased the relative abundance of the genera Bacteroides and Subdoligranulum. In conclusion, dietary bisdemethoxycurcumin supplementation could counteract LPS-induced inflamed intestinal damage in broiler chickens by improving intestinal morphology, maintaining intestinal tight junction, downregulating pro-inflammatory mediators, and restoring cecal microbiota.
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Affiliation(s)
- Jingfei Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuxiang Yang
- Bluestar Adisseo Nanjing Co. Ltd., Nanjing, 210000, China
| | - Hongli Han
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lili Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tian Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
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225
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Burnette EM, Grodin EN, Eisenberger NI, Ray LA. Endotoxin for Alcohol Research: A Call for Experimental Medicine Using Lipopolysaccharide Challenge. Alcohol Alcohol 2021; 56:715-717. [PMID: 33592623 DOI: 10.1093/alcalc/agaa148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 11/13/2022] Open
Abstract
Studies of inflammation in alcohol use disorder (AUD) are overwhelmingly preclinical, and translation to clinical samples is necessary. Endotoxin administration has been used successfully in humans to study mood disorders, offering a translational, reliable and safe model that may be validated in AUD research. We argue for the use of endotoxin challenge to elucidate the interplay between AUD and inflammation.
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Affiliation(s)
- Elizabeth M Burnette
- Department of Psychology, University of California at Los Angeles, 5555 Campus Hall, Los Angeles, CA 90095, USA.,Neuroscience Interdepartmental Program, University of California at Los Angeles, 5555 Campus Hall, Los Angeles, CA 90095, USA
| | - Erica N Grodin
- Department of Psychology, University of California at Los Angeles, 5555 Campus Hall, Los Angeles, CA 90095, USA
| | - Naomi I Eisenberger
- Department of Psychology, University of California at Los Angeles, 5555 Campus Hall, Los Angeles, CA 90095, USA
| | - Lara A Ray
- Department of Psychology, University of California at Los Angeles, 5555 Campus Hall, Los Angeles, CA 90095, USA.,Department of Psychiatry and Biobehavioral Sciences, University of California at Los Angeles, 5555 Campus Hall, Los Angeles, CA 90095, USA.,Brain Research Institute, University of California at Los Angeles, 5555 Campus Hall, Los Angeles, CA 90095, USA
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226
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Kim SE, Park JW, Kim HS, Jang MK, Suk KT, Kim DJ. The Role of Gut Dysbiosis in Acute-on-Chronic Liver Failure. Int J Mol Sci 2021; 22:ijms222111680. [PMID: 34769109 PMCID: PMC8584227 DOI: 10.3390/ijms222111680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022] Open
Abstract
Acute-on-chronic liver failure (ACLF) is an important syndrome of liver failure that has a high risk of short-term mortality in patients with chronic liver disease. The development of ACLF is associated with proinflammatory precipitating events, such as infection, alcoholic hepatitis, and intense systemic inflammation. Recently, the role of the gut microbiome has increasingly emerged in human health and disease. Additionally, the gut microbiome might have a major role in the development of liver disease. In this review, we examine evidence to support the role of gut dysbiosis in cirrhosis and ACLF. Additionally, we explore the mechanism by which the gut microbiome contributes to the development of ACLF, with a focus on alcohol-induced liver disease.
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Affiliation(s)
- Sung-Eun Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (S.-E.K.); (J.W.P.); (H.S.K.); (M.-K.J.); (K.T.S.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
| | - Ji Won Park
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (S.-E.K.); (J.W.P.); (H.S.K.); (M.-K.J.); (K.T.S.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
| | - Hyung Su Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (S.-E.K.); (J.W.P.); (H.S.K.); (M.-K.J.); (K.T.S.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
| | - Myoung-Kuk Jang
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (S.-E.K.); (J.W.P.); (H.S.K.); (M.-K.J.); (K.T.S.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
| | - Ki Tae Suk
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (S.-E.K.); (J.W.P.); (H.S.K.); (M.-K.J.); (K.T.S.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
| | - Dong Joon Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (S.-E.K.); (J.W.P.); (H.S.K.); (M.-K.J.); (K.T.S.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
- Correspondence: ; Tel.: +82–33–240–5646
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227
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Fu X, Chen T, Cai J, Liu B, Zeng Y, Zhang X. The Microbiome-Gut-Brain Axis, a Potential Therapeutic Target for Substance-Related Disorders. Front Microbiol 2021; 12:738401. [PMID: 34690981 PMCID: PMC8526971 DOI: 10.3389/fmicb.2021.738401] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 08/31/2021] [Indexed: 12/31/2022] Open
Abstract
Substance addiction is a complex worldwide public health problem. It endangers both personal life and social stability, causing great loss on economy. Substance-related disorder is considered to be a complicated chronic brain disorder. It resulted from interactions among pharmacological properties of addictive substances, individual susceptibility, and social–environmental factors. Unfortunately, there is still no ideal treatment for this disorder. Recent lines of evidence suggest that gut microbiome may play an important role in the pathogenesis of neuropsychiatric disorders, including substance-related disorders. This review summarizes the research on the relationship between gut microbiome and substance-related disorders, including different types of substance, different individual susceptibility, and the occurrence and development of substance-induced mental disorders. We also discuss the potentiation of gut microbiome in the treatment of substance-related disorders, especially in the treatment of substance-induced mental disorders and manipulation on individuals’ responsiveness to addictive substances.
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Affiliation(s)
- Xuan Fu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Ti Chen
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jingda Cai
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Bo Liu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Yaohui Zeng
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Xiaojie Zhang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
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228
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Nie W, Du YY, Xu FR, Zhou K, Wang ZM, Al-Dalali S, Wang Y, Li XM, Ma YH, Xie Y, Zhou H, Xu BC. Oligopeptides from Jinhua ham prevent alcohol-induced liver damage by regulating intestinal homeostasis and oxidative stress in mice. Food Funct 2021; 12:10053-10070. [PMID: 34515716 DOI: 10.1039/d1fo01693h] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The current study aimed to evaluate the protective activity of peptides isolated from Jinhua ham (JHP) against alcoholic liver disease (ALD) and the mechanisms by which JHP prevents against ALD. The tangential flow filtration (TFF) combined with size exclusion chromatography (SEC) and reversed-phase high performance liquid chromatography (RP-HPLC) were used to isolate the JHP. Then the hepatoprotective activity of peptides was evaluated through experiments in mice. The primary structure of the peptide with the strongest liver protective activity was Lys-Arg-Gln-Lys-Tyr-Asp (KRQKYD) and the peptide was derived from the myosin of Jinhua ham, which were both identified by LC-MS/MS. Furthermore, the mechanism of KRQKYD prevention against ALD was attributed to the fact that KRQKYD increases the abundance of Akkermansia muciniphila in the gut and decreases the abundance of Proteobacteria (especially Escherichia_Shigella). The LPS-mediated liver inflammatory cascade was reduced by protecting the intestinal barrier, increasing the tight connection of intestinal epithelial cells and reducing the level of LPS in the portal venous circulation. KRQKYD could inhibit the production of ROS by upregulating the expression of the NRF2/HO-1 antioxidant defense system and by reducing oxidative stress injury in liver cells. This study can provide a theoretical foundation for the application of JHP in the protection of liver from ALD.
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Affiliation(s)
- Wen Nie
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Ye-Ye Du
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, P.R. China
| | - Fei-Ran Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Kai Zhou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China.,Anhui QiangWang Flavouring Food Co., Ltd, Fuyang 236500, Anhui, P. R. China
| | - Zhao-Ming Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Sam Al-Dalali
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Ying Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Xiao-Min Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Yun-Hao Ma
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Yong Xie
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Hui Zhou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Bao-Cai Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. .,Engineering Research Center of Bioprocess, Ministry of Education, Hefei University of Technology, Hefei 230601, China
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229
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Lin Y, Chen H, Cao Y, Zhang Y, Li W, Guo W, Lv X, Rao P, Ni L, Liu P. Auricularia auricula Melanin Protects against Alcoholic Liver Injury and Modulates Intestinal Microbiota Composition in Mice Exposed to Alcohol Intake. Foods 2021; 10:foods10102436. [PMID: 34681485 PMCID: PMC8535349 DOI: 10.3390/foods10102436] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 12/12/2022] Open
Abstract
The potential effects of Auricularia auricula melanin (AAM) on the intestinal flora and liver metabolome in mice exposed to alcohol intake were investigated for the first time. The results showed that oral administration of AAM significantly reduced the abnormal elevation of serum total triglyceride (TG), cholesterol (TC), low density lipoprotein cholesterol (LDL-C), aspartate aminotransferase (AST) and alanine aminotransferase (ALT), and significantly inhibited hepatic lipid accumulation and steatosis in mice exposed to alcohol intake. Besides, the abnormally high levels of bile acids (BAs) and lactate dehydrogenase (LDH) in the liver of mice with alcohol intake were significantly decreased by AAM intervention, while the hepatic levels of glutathione (GSH) and superoxide dismutase (SOD) were appreciably increased. Compared with the model group, AAM supplementation significantly changed the composition of intestinal flora and up-regulated the levels of Akkermansia, Bifidobacterium, Romboutsia, Muribaculaceae, Lachnospiraceae_NK4A136_group, etc. Furthermore, liver metabolomics demonstrated that AAM had a significant regulatory effect on the composition of liver metabolites in mice with alcohol intake, especially the metabolites involved in phosphatidylinositol signaling system, ascorbate and aldarate metabolism, starch and sucrose metabolism, galactose metabolism, alpha-linolenic acid metabolism, glycolysis/gluconeogenesis, and biosynthesis of unsaturated fatty acids. At the gene level, AAM treatment regulated the mRNA levels of lipid metabolism and inflammatory response related genes in liver, including ACC-1, FASn, CPT-1, CD36, IFN-γ, LDLr and TNF-α. Conclusively, these findings suggest that AAM has potential beneficial effects on alleviating alcohol-induced liver injury and is expected to become a new functional food ingredient.
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Affiliation(s)
- Yichen Lin
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.L.); (Y.C.); (W.G.)
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Hua Chen
- Fujian Province Key Laboratory of Agro-Ecological Processes in Hilly Red Soil, Agricultural Ecology Institute, Fujian Academy of Agriculture Sciences, Fuzhou 350003, China;
| | - Yingjia Cao
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.L.); (Y.C.); (W.G.)
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Yuanhui Zhang
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Wenfeng Li
- Department of Nutrition and Food Safety, School of Public Health, Fujian Medical University, Fuzhou 350122, China;
| | - Weiling Guo
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.L.); (Y.C.); (W.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xucong Lv
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
- Correspondence: (X.L.); (P.L.)
| | - Pingfan Rao
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Li Ni
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Penghu Liu
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.L.); (Y.C.); (W.G.)
- Correspondence: (X.L.); (P.L.)
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230
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Fuenzalida C, Dufeu MS, Poniachik J, Roblero JP, Valenzuela-Pérez L, Beltrán CJ. Probiotics-Based Treatment as an Integral Approach for Alcohol Use Disorder in Alcoholic Liver Disease. Front Pharmacol 2021; 12:729950. [PMID: 34630107 PMCID: PMC8497569 DOI: 10.3389/fphar.2021.729950] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/09/2021] [Indexed: 12/12/2022] Open
Abstract
Alcoholic liver disease (ALD) is one of the leading causes of morbidity among adults with alcohol use disorder (AUD) worldwide. Its clinical course ranges from steatosis to alcoholic hepatitis, progressing to more severe forms of liver damage, such as cirrhosis and hepatocellular carcinoma. The pathogenesis of ALD is complex and diverse elements are involved in its development, including environmental factors, genetic predisposition, the immune response, and the gut-liver axis interaction. Chronic alcohol consumption induces changes in gut microbiota that are associated with a loss of intestinal barrier function and inflammatory responses which reinforce a liver damage progression triggered by alcohol. Alcohol metabolites such as acetaldehyde, lipid peroxidation-derived aldehyde malondialdehyde (MDA), and protein-adducts act as liver-damaging hepatotoxins and potentiate systemic inflammation. Additionally, ethanol causes direct damage to the central nervous system (CNS) by crossing the blood-brain barrier (BBB), provoking oxidative stress contributing to neuroinflammation. Overall, these processes have been associated with susceptibility to depression, anxiety, and alcohol craving in ALD. Recent evidence has shown that probiotics can reverse alcohol-induced changes of the microbiota and prevent ALD progression by restoring gut microbial composition. However, the impact of probiotics on alcohol consumption behavior has been less explored. Probiotics have been used to treat various conditions by restoring microbiota and decreasing systemic and CNS inflammation. The results of some studies suggest that probiotics might improve mental function in Alzheimer’s, autism spectrum disorder, and attenuated morphine analgesic tolerance. In this sense, it has been observed that gut microbiota composition alterations, as well as its modulation using probiotics, elicit changes in neurotransmitter signals in the brain, especially in the dopamine reward circuit. Consequently, it is not difficult to imagine that a probiotics-based complementary treatment to ALD might reduce disease progression mediated by lower alcohol consumption. This review aims to present an update of the pathophysiologic mechanism underlying the microbiota-gut-liver-brain axis in ALD, as well as to provide evidence supporting probiotic use as a complementary therapy to address alcohol consumption disorder and its consequences on liver damage.
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Affiliation(s)
- Catalina Fuenzalida
- Laboratory of Inmunogastroenterology, Gastroenterology Unit, Medicine Department, Hospital Clínico Universidad de Chile, Santiago, Chile.,Medicine Faculty, Universidad de Chile, Santiago, Chile
| | - María Soledad Dufeu
- Laboratory of Inmunogastroenterology, Gastroenterology Unit, Medicine Department, Hospital Clínico Universidad de Chile, Santiago, Chile.,Medicine Faculty, Universidad de Chile, Santiago, Chile
| | - Jaime Poniachik
- Gastroenterology Unit, Medicine Department, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Juan Pablo Roblero
- Gastroenterology Unit, Medicine Department, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Lucía Valenzuela-Pérez
- Laboratory of Inmunogastroenterology, Gastroenterology Unit, Medicine Department, Hospital Clínico Universidad de Chile, Santiago, Chile.,Medicine Faculty, Universidad de Chile, Santiago, Chile.,School of Veterinary Medicine, Science Faculty, Universidad Mayor, Santiago, Chile
| | - Caroll Jenny Beltrán
- Laboratory of Inmunogastroenterology, Gastroenterology Unit, Medicine Department, Hospital Clínico Universidad de Chile, Santiago, Chile.,Medicine Faculty, Universidad de Chile, Santiago, Chile
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231
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Lim EY, Song EJ, Kim JG, Jung SY, Lee SY, Shin HS, Nam YD, Kim YT. Lactobacillus intestinalis YT2 restores the gut microbiota and improves menopausal symptoms in ovariectomized rats. Benef Microbes 2021; 12:503-516. [PMID: 34463192 DOI: 10.3920/bm2020.0217] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
There are many studies focusing on the alleviation of menopausal symptoms; however, little is known about the role of gut microorganisms in menopausal symptoms. Ovariectomized (OVX) rats were administered a novel strain (YT2) of Lactobacillus intestinalis (a species with significantly reduced abundance in OVX rats) and the potential probiotic effect on the improvement of menopausal symptoms was evaluated. Of note, the gut microbial composition completely shifted after ovariectomy in rats. Treatment with L. intestinalis YT2 significantly alleviated menopausal symptoms, such as increased fat mass, decreased bone mineral density, increased pain sensitivity, depression-like behaviour, and cognitive impairment. Additionally, the administration of L. intestinalis YT2 restored the intestinal microbial composition, including an increased Firmicutes/Bacteroides ratio. L. intestinalis YT2 also promoted gut barrier integrity by increasing the mRNA levels of tight junction-related markers. In conclusion, L. intestinalis YT2 treatment alleviated menopausal symptoms via the modulation of the gut microbiota. Importantly, these results suggest that L. intestinalis YT2 should be considered as a therapeutic probiotic agent for menopausal women.
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Affiliation(s)
- E Y Lim
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - E-J Song
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - J G Kim
- Food Functional Evaluation Support Team, Technical Assistance Center, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - S Y Jung
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - S-Y Lee
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - H S Shin
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Y-D Nam
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Y T Kim
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
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232
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Sharma SP, Suk KT, Kim DJ. Significance of gut microbiota in alcoholic and non-alcoholic fatty liver diseases. World J Gastroenterol 2021; 27:6161-6179. [PMID: 34712025 PMCID: PMC8515797 DOI: 10.3748/wjg.v27.i37.6161] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/05/2021] [Accepted: 08/31/2021] [Indexed: 02/06/2023] Open
Abstract
Liver-gut communication is vital in fatty liver diseases, and gut microbes are the key regulators in maintaining liver homeostasis. Chronic alcohol abuse and persistent overnutrition create dysbiosis in gut ecology, which can contribute to fatty liver disease. In this review, we discuss the gut microbial compositional changes that occur in alcoholic and nonalcoholic fatty liver diseases and how this gut microbial dysbiosis and its metabolic products are involved in fatty liver disease pathophysiology. We also summarize the new approaches related to gut microbes that might help in the diagnosis and treatment of fatty liver disease.
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Affiliation(s)
- Satya Priya Sharma
- Institute for Liver and Digestive Diseases, Hallym University College of Medicine, Chuncheon 24252, South Korea
| | - Ki Tae Suk
- Institute for Liver and Digestive Diseases, Hallym University College of Medicine, Chuncheon 24252, South Korea
| | - Dong Joon Kim
- Institute for Liver and Digestive Diseases, Hallym University College of Medicine, Chuncheon 24252, South Korea
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233
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Bazaz MR, Balasubramanian R, Monroy-Jaramillo N, Dandekar MP. Linking the Triad of Telomere Length, Inflammation, and Gut Dysbiosis in the Manifestation of Depression. ACS Chem Neurosci 2021; 12:3516-3526. [PMID: 34547897 DOI: 10.1021/acschemneuro.1c00457] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Telomere length is an indispensable marker for cellular and biological aging, and it also represents an individual's physical and mental health status. Telomere shortening has been observed in chronic inflammatory conditions, which in turn accelerates aging and risk for psychiatric disorders, including depression. Considering the influence of inflammation and telomere shortening on the gut-brain axis, herein we describe a plausible interplay between telomere attrition, inflammation, and gut dysbiosis in the neurobiology of depression. Telomere shortening and hyperinflammation are well reported in depression. A negative impact of augmented inflammation has been noted on the intestinal permeability and microbial consortia and their byproducts in depressive patients. Moreover, gut dysbiosis provokes host-immune responses. As the gut microbiome is gaining importance in the manifestation and management of depression, herein we discuss whether telomere attrition is connected with the perturbation of commensal microflora. We also describe a pathological connection of cortisol with hyperinflammation, telomere shortening, and gut dysbiosis occurring in depression. This review summarizes how the triad of telomere attrition, inflammation, and gut dysbiosis is interconnected and modulates the risk for depression by regulating the systemic cortisol levels.
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Affiliation(s)
- Mohd Rabi Bazaz
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India, 500037
| | - Ramya Balasubramanian
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India, 500037
| | - Nancy Monroy-Jaramillo
- Department of Genetics, National Institute of Neurology and Neurosurgery Manuel Velasco Suárez (NINN), Mexico City, Mexico, 14269
| | - Manoj P. Dandekar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India, 500037
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234
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Zhao L, Mehmood A, Soliman MM, Iftikhar A, Iftikhar M, Aboelenin SM, Wang C. Protective Effects of Ellagic Acid Against Alcoholic Liver Disease in Mice. Front Nutr 2021; 8:744520. [PMID: 34595202 PMCID: PMC8478122 DOI: 10.3389/fnut.2021.744520] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 08/19/2021] [Indexed: 12/14/2022] Open
Abstract
Ellagic acid, a natural polyphenolic compound commonly present in vegetables, fruits, nuts, and other edible plants, exerts many pharmacological activities. The present project was designed to explore the hepatoprotective effect of ellagic acid against alcohol-induced liver disease (ALD) and the correlation among alcohol, oxidative stress, inflammation, and gut microbiota. Fifty percent (v/v) alcohol (10 mL/kg bw daily) was orally administrated for 4 weeks in mice along with ellagic acid (50 and 100 mg/kg bw). Alcohol administration significantly (p < 0.05) increased the activities of alanine aminotransferase and serum aspartate aminotransferase, levels of triglyceride, low density lipoprotein, free fatty acid, and total cholesterol, and decreased contents of the high-density lipoprotein in model group compared with the control group, which were further improved by ellagic acid (50 or 100 mg/kg bw). Furthermore, daily supplementation of ellagic acid alleviated hepatic antioxidant activities (glutathione peroxidase, catalase, malondialdehyde, superoxide dismutase, and glutathione), proinflammatory cytokines levels (IL-6, IL-1β, and TNF-α), genes expressions (Tlr4, Myd88, Cd14, Cox2, Nos2, and Nfκb1), and histopathological features in alcohol-induced liver injured mice. Additionally, results also revealed that ellagic acid supplementation improved alcohol-induced gut microbiota dysbiosis. In conclusion, ellagic acid mitigated oxidative stress, inflammatory response, steatosis, and gut microbiota dysbiosis in ALD mice. Our results suggested that ellagic acid could be applied as an ideal dietary therapy against ALD.
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Affiliation(s)
- Liang Zhao
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, China
| | - Arshad Mehmood
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, China
| | - Mohamed Mohamed Soliman
- Clinical Laboratory Sciences Department, Turabah University College, Taif University, Taif, Saudi Arabia
| | - Asra Iftikhar
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, The University of Faisalabad, Faisalabad, Pakistan
| | - Maryam Iftikhar
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, China
| | | | - Chengtao Wang
- Beijing Advance Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, China
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235
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Steel TL, Afshar M, Edwards S, Jolley SE, Timko C, Clark BJ, Douglas IS, Dzierba AL, Gershengorn HB, Gilpin NW, Godwin DW, Hough CL, Maldonado JR, Mehta AB, Nelson LS, Patel MB, Rastegar DA, Stollings JL, Tabakoff B, Tate JA, Wong A, Burnham EL. Research Needs for Inpatient Management of Severe Alcohol Withdrawal Syndrome: An Official American Thoracic Society Research Statement. Am J Respir Crit Care Med 2021; 204:e61-e87. [PMID: 34609257 PMCID: PMC8528516 DOI: 10.1164/rccm.202108-1845st] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background: Severe alcohol withdrawal syndrome (SAWS) is highly morbid, costly, and common among hospitalized patients, yet minimal evidence exists to guide inpatient management. Research needs in this field are broad, spanning the translational science spectrum. Goals: This research statement aims to describe what is known about SAWS, identify knowledge gaps, and offer recommendations for research in each domain of the Institute of Medicine T0-T4 continuum to advance the care of hospitalized patients who experience SAWS. Methods: Clinicians and researchers with unique and complementary expertise in basic, clinical, and implementation research related to unhealthy alcohol consumption and alcohol withdrawal were invited to participate in a workshop at the American Thoracic Society 2019 International Conference. The committee was subdivided into four groups on the basis of interest and expertise: T0-T1 (basic science research with translation to humans), T2 (research translating to patients), T3 (research translating to clinical practice), and T4 (research translating to communities). A medical librarian conducted a pragmatic literature search to facilitate this work, and committee members reviewed and supplemented the resulting evidence, identifying key knowledge gaps. Results: The committee identified several investigative opportunities to advance the care of patients with SAWS in each domain of the translational science spectrum. Major themes included 1) the need to investigate non-γ-aminobutyric acid pathways for alcohol withdrawal syndrome treatment; 2) harnessing retrospective and electronic health record data to identify risk factors and create objective severity scoring systems, particularly for acutely ill patients with SAWS; 3) the need for more robust comparative-effectiveness data to identify optimal SAWS treatment strategies; and 4) recommendations to accelerate implementation of effective treatments into practice. Conclusions: The dearth of evidence supporting management decisions for hospitalized patients with SAWS, many of whom require critical care, represents both a call to action and an opportunity for the American Thoracic Society and larger scientific communities to improve care for a vulnerable patient population. This report highlights basic, clinical, and implementation research that diverse experts agree will have the greatest impact on improving care for hospitalized patients with SAWS.
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236
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Leclercq S, Schwarz M, Delzenne NM, Stärkel P, de Timary P. Alterations of kynurenine pathway in alcohol use disorder and abstinence: a link with gut microbiota, peripheral inflammation and psychological symptoms. Transl Psychiatry 2021; 11:503. [PMID: 34599147 PMCID: PMC8486842 DOI: 10.1038/s41398-021-01610-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 08/11/2021] [Accepted: 08/20/2021] [Indexed: 02/06/2023] Open
Abstract
The gut-brain communication is mostly driven by the immune, metabolic and neural pathways which remained poorly explored in patients with alcohol use disorder (AUD). The metabolites arising from the tryptophan-kynurenine pathway have gained considerable attention since they are at the interface between intestinal bacteria, host immune response and brain functions. This study described the circulating levels of kynurenine metabolites in AUD patients, at the onset (T1) and end (T2) of a 3-week detoxification program, and tested correlations between those metabolites and inflammatory markers, the gut microbiota and the psychological symptoms. Increased concentration of the neurotoxic metabolite quinolinic acid (QUIN) and decreased levels of the neuroprotector metabolite kynurenic acid (KYNA) which both modulate glutamatergic neurotransmission were observed in AUD patients, particularly at T2. The inflammatory marker hsCRP was associated with several metabolic ratios of the kynurenine pathway. Tryptophan, KYNA and QUIN were correlated with depression, alcohol craving and reaction time, respectively. Analysis of gut microbiota revealed that bacteria known as short-chain fatty acid producers, as well as bacterial metabolites including butyrate and medium-chain fatty acids were associated with some metabolites of the tryptophan-kynurenine pathway. Targeting the glutamatergic neurotransmission through the modulation of the kynurenine pathway, by manipulating the gut microbiota, might represent an interesting alternative for modulating alcohol-related behavior.
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Affiliation(s)
- Sophie Leclercq
- grid.7942.80000 0001 2294 713XInstitute of Neuroscience, Université catholique de Louvain (UCLouvain), Brussels, Belgium ,grid.7942.80000 0001 2294 713XMetabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Markus Schwarz
- grid.411095.80000 0004 0477 2585Institute of Laboratory Medicine, LMU Klinikum Munich, Munich, Germany
| | - Nathalie M. Delzenne
- grid.7942.80000 0001 2294 713XMetabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Peter Stärkel
- grid.7942.80000 0001 2294 713XLaboratory of Hepato-Gastroenterology, Institute of Experimental and Clinical Research, Université catholique de Louvain (UCLouvain), Brussels, Belgium ,grid.48769.340000 0004 0461 6320Department of Hepatogastroenterology, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - Philippe de Timary
- Institute of Neuroscience, Université catholique de Louvain (UCLouvain), Brussels, Belgium. .,Department of Adult Psychiatry, Cliniques universitaires Saint-Luc, Brussels, Belgium.
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237
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Knorr J, Wree A, Feldstein AE. Pyroptosis in Steatohepatitis and Liver Diseases. J Mol Biol 2021; 434:167271. [PMID: 34592216 DOI: 10.1016/j.jmb.2021.167271] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/14/2021] [Accepted: 09/22/2021] [Indexed: 12/13/2022]
Abstract
Pyroptosis is an inflammatory form of regulated cell death, which functions in the clearance of intracellularly replicating pathogens by cell lysis in order to induce further immune response. Since the discovery of the gasdermin (GSDM) family, pyroptosis has attracted attention in a wide range of inflammatory diseases such as nonalcoholic steatohepatitis and other liver diseases. Due to the cleavage of GSDMs by different caspases, the amino-terminal GSDM fragments form membrane pores essential for pyroptosis that facilitate the release of inflammatory cytokines by loss of ionic gradient and membrane rupture. In this review, we address the key molecular and cellular processes that induce pyroptosis in the liver and its significance in the pathogenesis of common liver diseases in different human and experimental mice studies.
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Affiliation(s)
- Jana Knorr
- Department of Hepatology and Gastroenterology, Charité Campus Mitte and Campus Virchow Clinic, Charité University Medicine, Berlin, Germany
| | - Alexander Wree
- Department of Hepatology and Gastroenterology, Charité Campus Mitte and Campus Virchow Clinic, Charité University Medicine, Berlin, Germany; Department of Pediatric Gastroenterology, University of California, San Diego (UCSD), California and Rady Children's Hospital, San Diego, CA, United States
| | - Ariel E Feldstein
- Department of Pediatric Gastroenterology, University of California, San Diego (UCSD), California and Rady Children's Hospital, San Diego, CA, United States.
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238
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Leclercq S, Le Roy T, Furgiuele S, Coste V, Bindels LB, Leyrolle Q, Neyrinck AM, Quoilin C, Amadieu C, Petit G, Dricot L, Tagliatti V, Cani PD, Verbeke K, Colet JM, Stärkel P, de Timary P, Delzenne NM. Gut Microbiota-Induced Changes in β-Hydroxybutyrate Metabolism Are Linked to Altered Sociability and Depression in Alcohol Use Disorder. Cell Rep 2021; 33:108238. [PMID: 33053357 DOI: 10.1016/j.celrep.2020.108238] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 08/04/2020] [Accepted: 09/16/2020] [Indexed: 12/18/2022] Open
Abstract
Patients with alcohol use disorder (AUD) present with important emotional, cognitive, and social impairments. The gut microbiota has been recently shown to regulate brain functions and behavior but convincing evidence of its role in AUD is lacking. Here, we show that gut dysbiosis is associated with metabolic alterations that affect behavioral (depression, sociability) and neurobiological (myelination, neurotransmission, inflammation) processes involved in alcohol addiction. By transplanting the gut microbiota from AUD patients to mice, we point out that the production of ethanol by specific bacterial genera and the reduction of lipolysis are associated with a lower hepatic synthesis of β-hydroxybutyrate (BHB), which thereby prevents the neuroprotective effect of BHB. We confirm these results in detoxified AUD patients, in which we observe a persisting ethanol production in the feces as well as correlations among low plasma BHB levels and social impairments, depression, or brain white matter alterations.
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Affiliation(s)
- Sophie Leclercq
- Institute of Neuroscience, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Tiphaine Le Roy
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; WELBIO (Walloon Excellence in Life Sciences and Biotechnology), Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Sonia Furgiuele
- Laboratory of Human Biology & Toxicology, UMONS, 7000 Mons, Belgium
| | - Valentin Coste
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Laure B Bindels
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Quentin Leyrolle
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Audrey M Neyrinck
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Caroline Quoilin
- Institute of Neuroscience, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Camille Amadieu
- Institute of Neuroscience, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Géraldine Petit
- Institute of Neuroscience, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Laurence Dricot
- Institute of Neuroscience, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | | | - Patrice D Cani
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; WELBIO (Walloon Excellence in Life Sciences and Biotechnology), Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium
| | - Kristin Verbeke
- Translational Research Center in Gastrointestinal Disorders, KU Leuven, 3000 Leuven, Belgium
| | - Jean-Marie Colet
- Laboratory of Human Biology & Toxicology, UMONS, 7000 Mons, Belgium
| | - Peter Stärkel
- Laboratory of Hepato-Gastroenterology, Institute of Experimental and Clinical Research, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; Department of Hepatogastroenterology, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Philippe de Timary
- Institute of Neuroscience, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; Department of Adult Psychiatry, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium.
| | - Nathalie M Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), 1200 Brussels, Belgium.
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239
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Russell JT, Zhou Y, Weinstock GM, Bubier JA. The Gut Microbiome and Substance Use Disorder. Front Neurosci 2021; 15:725500. [PMID: 34531718 PMCID: PMC8439419 DOI: 10.3389/fnins.2021.725500] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 08/12/2021] [Indexed: 01/15/2023] Open
Abstract
Substance use disorders (SUDs) remain a significant public health challenge, affecting tens of millions of individuals worldwide each year. Often comorbid with other psychiatric disorders, SUD can be poly-drug and involve several different substances including cocaine, opiates, nicotine, and alcohol. SUD has a strong genetic component. Much of SUD research has focused on the neurologic and genetic facets of consumption behavior. There is now interest in the role of the gut microbiome in the pathogenesis of SUD. In this review, we summarize current animal and clinical evidence that the gut microbiome is involved in SUD, then address the underlying mechanisms by which the gut microbiome interacts with SUD through metabolomic, immune, neurological, and epigenetic mechanisms. Lastly, we discuss methods using various inbred and outbred mice models to gain an integrative understanding of the microbiome and host genetic controls in SUD.
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Affiliation(s)
- Jordan T Russell
- School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - Yanjiao Zhou
- School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - George M Weinstock
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, United States
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240
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Vanuytsel T, Tack J, Farre R. The Role of Intestinal Permeability in Gastrointestinal Disorders and Current Methods of Evaluation. Front Nutr 2021; 8:717925. [PMID: 34513903 PMCID: PMC8427160 DOI: 10.3389/fnut.2021.717925] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/04/2021] [Indexed: 12/12/2022] Open
Abstract
An increased intestinal permeability has been described in various gastrointestinal and non-gastrointestinal disorders. Nevertheless, the concept and definition of intestinal permeability is relatively broad and includes not only an altered paracellular route, regulated by tight junction proteins, but also the transcellular route involving membrane transporters and channels, and endocytic mechanisms. Paracellular intestinal permeability can be assessed in vivo by using different molecules (e.g., sugars, polyethylene glycols, 51Cr-EDTA) and ex vivo in Ussing chambers combining electrophysiology and probes of different molecular sizes. The latter is still the gold standard technique for assessing the epithelial barrier function, whereas in vivo techniques, including putative blood biomarkers such as intestinal fatty acid-binding protein and zonulin, are broadly used despite limitations. In the second part of the review, the current evidence of the role of impaired barrier function in the pathophysiology of selected gastrointestinal and liver diseases is discussed. Celiac disease is one of the conditions with the best evidence for impaired barrier function playing a crucial role with zonulin as its proposed regulator. Increased permeability is clearly present in inflammatory bowel disease, but the question of whether this is a primary event or a consequence of inflammation remains unsolved. The gut-liver axis with a crucial role in impaired intestinal barrier function is increasingly recognized in chronic alcoholic and metabolic liver disease. Finally, the current evidence does not support an important role for increased permeability in bile acid diarrhea.
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Affiliation(s)
- Tim Vanuytsel
- Department of Chronic Diseases, Translational Research Center for Gastrointestinal Disorders, Metabolism and Ageing, Catholic University Leuven, Leuven, Belgium.,Division of Gastroenterology and Hepatology, Leuven University Hospital, Leuven, Belgium
| | - Jan Tack
- Department of Chronic Diseases, Translational Research Center for Gastrointestinal Disorders, Metabolism and Ageing, Catholic University Leuven, Leuven, Belgium.,Division of Gastroenterology and Hepatology, Leuven University Hospital, Leuven, Belgium
| | - Ricard Farre
- Department of Chronic Diseases, Translational Research Center for Gastrointestinal Disorders, Metabolism and Ageing, Catholic University Leuven, Leuven, Belgium
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241
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Effect of Antarctic krill phospholipid (KOPL) on high fat diet-induced obesity in mice. Food Res Int 2021; 148:110456. [PMID: 34507719 DOI: 10.1016/j.foodres.2021.110456] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 04/28/2021] [Accepted: 05/23/2021] [Indexed: 12/12/2022]
Abstract
Phospholipids are the main lipid components in Antarctic krill oil, and the combination of n-3 polyunsaturated fatty acids (n-3 PUFAs) shows multiple nutritional advantages. At present, the research about Antarctic krill phospholipid (KOPL) mainly focuses on the purification, and there are few reports on the anti-obesity effect. Thus, this study aimed at evaluating the effect of KOPL on the high-fat diet (HFD)-induced obesity mice. All the mice were divided into five groups, which were fed chow diet, HFD, and different doses of KOPL + HFD, respectively. The results showed that KOPL treatment could reduce the weight gain, fat accumulation, and liver tissue damage in HFD-induced mice. KOPL treatment could reduce the levels of serum lipid (TC, TG, L-LDL) and fasting blood glucose in HFD-induced mice, and the inflammatory cytokines (IL-1β and TNF-α) in serum. Further analysis showed that KOPL could promote the normal expression of lipid-synthesis-related genes and proteins, including sterol regulatory element-binding protein-1c (SREBP-1c), fatty acid synthetase (FAS), and peroxisome proliferator-activated receptor alpha (PPAR-α) in liver tissue. Besides, it inhibited the overexpression of inflammatory cytokine genes (IL-1β and TNF-α), but increased the expression of tight junction genes (ZO-1 and Occludin) in the colon tissue. Additionally, KOPL improved the decrease of diversity and imbalance of intestinal microbiota, which could contribute to its beneficial effects. In summary, the KOPL treatment improves the effects of HFD-induced obese mice by maintaining normal lipid levels, protecting the liver tissue, reducing inflammation response and intestinal damage, and regulating intestinal microbiota abnormalities. It refer to KOPL could be a promising dietary strategy for treating obesity and improving its related metabolic diseases.
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242
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Do T, Diamond S, Green C, Warren M. Nutritional Implications of Patients with Dysautonomia and Hypermobility Syndromes. Curr Nutr Rep 2021; 10:324-333. [PMID: 34510391 PMCID: PMC8435108 DOI: 10.1007/s13668-021-00373-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2021] [Indexed: 08/30/2023]
Abstract
PURPOSE OF REVIEW Dysautonomia and hypermobility syndrome are two distinct but often overlapping clinical conditions that are recognized for their complex multiorgan system afflictions. The purpose of this review is to investigate dietary strategies to reduce symptoms and augment quality of life in this growing patient population. RECENT FINDINGS There is increasing evidence supporting dietary modifications to include food rich in probiotics and prebiotics, along with fiber supplements to reduce gastrointestinal symptoms. Adequate salt and fluid intake may reduce orthostatic hypotension symptoms. Dietary supplements may help with osteoarticular, musculoskeletal, and fatigue symptoms. Individualized diet strategies and supplements can reduce the multiorgan system symptoms observed in dysautonomia and hypermobility syndrome.
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Affiliation(s)
- Toan Do
- Internal Medicine, Oregon Health & Science University, Portland, OR, USA.
| | - Sarah Diamond
- Division of Gastroenterology & Hepatology, Oregon Health & Science University, Portland, OR, USA
| | - Caitlin Green
- Division of Gastroenterology & Hepatology, Medical University of South Carolina, Charleston, SC, USA
| | - Malissa Warren
- Department of Surgery, Oregon Health & Science University, Portland, OR, USA.
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243
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Koh YC, Lee PS, Kuo YL, Nagabhushanam K, Ho CT, Pan MH. Dietary Pterostilbene and Resveratrol Modulate the Gut Microbiota Influenced by Circadian Rhythm Dysregulation. Mol Nutr Food Res 2021; 65:e2100434. [PMID: 34506670 DOI: 10.1002/mnfr.202100434] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/13/2021] [Indexed: 12/17/2022]
Abstract
SCOPE A causal relationship between circadian misalignment and microbiota dysbiosis has been discussed recently, due to their association to pathogenesis. Herein, the possible impact of pterostilbene (PSB) and resveratrol (RES) on the gut microbiota brought by chronic jet-lag in mice is investigated. METHODS AND RESULTS Dietary supplement of RES and PSB (0.25%) are given to 16 week-jetlagged mice to examine the effects on microbiota and physiological functions. Jetlag significantly induces weight gained that could be effectively prevented by PSB. Both supplements also retain oscillation patterns that found to be lost in jetlag induced (JLG) group, including serum biochemical parameters and gut microbiota. The results of beta diversity suggest the supplementations efficiently lead to distinct gut microbial composition as compared to JLG group. Besides, the supplementation forestalls some microbial elevation, such as Eubacterium ventriosum and Acetitomaculum. Growth of health beneficial bacteria like Blautia and Lachnospiraceae UCG-001 is facilitated and abundance of these bacteria could be correlated to oscillation of biochemical parameters. Result of KEGG indicates distinct effect brought by microbial re-shaping. CONCLUSION The result suggests that supplementation of RES and PSB could potentially dampen some adverse effects of gut microbiota dysbiosis, and at the same time, re-composite and facilitate the growth of health beneficial microbiota.
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Affiliation(s)
- Yen-Chun Koh
- Institute of Food Sciences and Technology, National Taiwan University, Taipei, Taiwan
| | - Pei-Sheng Lee
- Institute of Food Sciences and Technology, National Taiwan University, Taipei, Taiwan
| | - Yu-Lun Kuo
- Biotools Co., Ltd, New Taipei City 221, Taiwan
| | | | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Min-Hsiung Pan
- Institute of Food Sciences and Technology, National Taiwan University, Taipei, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung City, Taiwan.,Department of Health and Nutrition Biotechnology, Asia University, Taichung City, Taiwan
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244
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Birková A, Hubková B, Čižmárová B, Bolerázska B. Current View on the Mechanisms of Alcohol-Mediated Toxicity. Int J Mol Sci 2021; 22:9686. [PMID: 34575850 PMCID: PMC8472195 DOI: 10.3390/ijms22189686] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 02/07/2023] Open
Abstract
Alcohol is a psychoactive substance that is widely used and, unfortunately, often abused. In addition to acute effects such as intoxication, it may cause many chronic pathological conditions. Some of the effects are very well described and explained, but there are still gaps in the explanation of empirically co-founded dysfunction in many alcohol-related conditions. This work focuses on reviewing actual knowledge about the toxic effects of ethanol and its degradation products.
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Affiliation(s)
- Anna Birková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, 04011 Kosice, Slovakia
| | - Beáta Hubková
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, 04011 Kosice, Slovakia
| | - Beáta Čižmárová
- Department of Medical and Clinical Biochemistry, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, 04011 Kosice, Slovakia
| | - Beáta Bolerázska
- 1st Department of Stomatology, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, 04011 Kosice, Slovakia
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245
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Milosevic I, Russo E, Vujovic A, Barac A, Stevanovic O, Gitto S, Amedei A. Microbiota and viral hepatitis: State of the art of a complex matter. World J Gastroenterol 2021; 27:5488-5501. [PMID: 34588747 PMCID: PMC8433613 DOI: 10.3748/wjg.v27.i33.5488] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/26/2021] [Accepted: 07/21/2021] [Indexed: 02/06/2023] Open
Abstract
Changes in gut microbiota influence both the gut and liver, which are strictly connected by the so-called “gut–liver axis”. The gut microbiota acts as a major determinant of this relationship in the onset and clinical course of liver diseases. According to the results of several studies, gut dysbiosis is linked to viral hepatitis, mainly hepatitis C virus and hepatitis B virus infection. Gut bacteria-derived metabolites and cellular components are key molecules that affect liver function and modulate the pathology of viral hepatitis. Recent studies showed that the gut microbiota produces various molecules, such as peptidoglycans, lipopolysaccharides, DNA, lipoteichoic acid, indole-derivatives, bile acids, and trimethylamine, which are translocated to the liver and interact with liver immune cells causing pathological effects. Therefore, the existence of crosstalk between the gut microbiota and the liver and its implications on host health and pathologic status are essential factors impacting the etiology and therapeutic approach. Concrete mechanisms behind the pathogenic role of gut-derived components on the pathogenesis of viral hepatitis remain unclear and not understood. In this review, we discuss the current findings of research on the bidirectional relationship of the components of gut microbiota and the progression of liver diseases and viral hepatitis and vice versa. Moreover, this paper highlights the current therapeutic and preventive strategies, such as fecal transplantation, used to restore the gut microbiota composition and so improve host health.
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Affiliation(s)
- Ivana Milosevic
- Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia Faculty of Medicine, University of Belgrade, Belgrade 101801, Serbia
| | - Edda Russo
- Department of Experimental and Clinical Medicine, University of Florence, Firenze 50100, Italy
| | - Ankica Vujovic
- Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia Faculty of Medicine, University of Belgrade, Belgrade 101801, Serbia
| | - Aleksandra Barac
- Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia Faculty of Medicine, University of Belgrade, Belgrade 101801, Serbia
| | - Olja Stevanovic
- Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia Faculty of Medicine, University of Belgrade, Belgrade 101801, Serbia
| | - Stefano Gitto
- Department of Experimental and Clinical Medicine, University of Florence, Firenze 50100, Italy
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Firenze 50100, Italy
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246
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Thapa S, Sheu JC, Venkatachalam A, Runge JK, Luna RA, Calarge CA. Gut microbiome in adolescent depression. J Affect Disord 2021; 292:500-507. [PMID: 34146902 PMCID: PMC8282757 DOI: 10.1016/j.jad.2021.05.107] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 04/02/2021] [Accepted: 05/31/2021] [Indexed: 01/01/2023]
Abstract
OBJECTIVES To examine the association of major depressive disorder (MDD) and selective serotonin reuptake inhibitor (SSRI) use with gut microbiome in older adolescents and younger adults. METHODS Fifteen to 20-year-old participants within a month of starting an SSRI and unmedicated controls were enrolled in a longitudinal study. They underwent a diagnostic evaluation comprising self-completed and rater-administered questionnaires and clinical interview. They also provided a stool sample, which was stored at -80°C until DNA extraction. Microbial DNA was extracted with the MoBio PowerSoil kit, and the V4 region of the 16S rRNA was amplified and sequenced. Raw sequence data was processed with the LotuS pipeline. Only samples with no antibiotic exposure in the last 6 months and with >1000 quality filtered reads were included in the analysis. RESULTS 160 participants (57.5% female, mean age 20.0±1.9 years, 29% taking SSRIs) were enrolled, comprising 110 MDD patients (60% in acute episode), 27 healthy controls, and 23 psychiatric controls. No significant group differences were observed in bacterial richness or alpha and beta diversity. Differential abundance analysis of bacterial taxa found no significant group differences at the phylum and genus levels. Neither being in a major depressive episode vs. remission nor using SSRIs was associated with differential bacterial composition. CONCLUSIONS In this sizeable sample of older adolescents, neither MDD nor SSRI use was associated with differences in gut bacterial microbiome. In this age group, the bi-directional interaction between the gut bacteria and brain may be more nuanced than in adults, requiring further investigation.
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Affiliation(s)
- Santosh Thapa
- Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, TX, USA; Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Jessica C Sheu
- Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA
| | - Alamelu Venkatachalam
- Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, TX, USA; Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Jessica K Runge
- Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, TX, USA; Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Ruth Ann Luna
- Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, TX, USA; Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Chadi A Calarge
- Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA.
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247
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Yan S, Yin XM. Gut microbiome in liver pathophysiology and cholestatic liver disease. LIVER RESEARCH 2021; 5:151-163. [PMID: 35355516 PMCID: PMC8963136 DOI: 10.1016/j.livres.2021.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An increasing amount of evidence has shown critical roles of gut microbiome in host pathophysiology. The gut and the liver are anatomically and physiologically connected. Given the critical role of gut-liver axis in the homeostasis of the liver, gut microbiome interplays with a diverse spectrum of hepatic changes, including steatosis, inflammation, fibrosis, cholestasis, and tumorigenesis. In clinic, cholestasis manifests with fatigue, pruritus, and jaundice, caused by the impairment in bile formation or flow. Studies have shown that the gut microbiome is altered in cholestatic liver disease. In this review, we will explore the interaction between the gut microbiome and the liver with a focus on the alteration and the role of gut microbiome in cholestatic liver disease. We will also discuss the prospect of exploiting the gut microbiome in the development of novel therapies for cholestatic liver disease.
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248
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AKTAS B, ASLIM B. Neuropathy in COVID-19 associated with dysbiosis-related inflammation. Turk J Biol 2021; 45:390-403. [PMID: 34803442 PMCID: PMC8573843 DOI: 10.3906/biy-2105-53] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/30/2021] [Indexed: 01/08/2023] Open
Abstract
Although COVID-19 affects mainly lungs with a hyperactive and imbalanced immune response, gastrointestinal and neurological symptoms such as diarrhea and neuropathic pains have been described as well in patients with COVID-19. Studies indicate that gut-lung axis maintains host homeostasis and disease development with the association of immune system, and gut microbiota is involved in the COVID-19 severity in patients with extrapulmonary conditions. Gut microbiota dysbiosis impairs the gut permeability resulting in translocation of gut microbes and their metabolites into the circulatory system and induce systemic inflammation which, in turn, can affect distal organs such as the brain. Moreover, gut microbiota maintains the availability of tryptophan for kynurenine pathway, which is important for both central nervous and gastrointestinal system in regulating inflammation. SARS-CoV-2 infection disturbs the gut microbiota and leads to immune dysfunction with generalized inflammation. It has been known that cytokines and microbial products crossing the blood-brain barrier induce the neuroinflammation, which contributes to the pathophysiology of neurodegenerative diseases including neuropathies. Therefore, we believe that both gut-lung and gut-brain axes are involved in COVID-19 severity and extrapulmonary complications. Furthermore, gut microbial dysbiosis could be the reason of the neurologic complications seen in severe COVID-19 patients with the association of dysbiosis-related neuroinflammation. This review will provide valuable insights into the role of gut microbiota dysbiosis and dysbiosis-related inflammation on the neuropathy in COVID-19 patients and the disease severity.
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Affiliation(s)
- Busra AKTAS
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Burdur Mehmet Akif Ersoy University, BurdurTurkey
| | - Belma ASLIM
- Department of Biology, Faculty of Sciences, Gazi University, AnkaraTurkey
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Yang F, Wei J, Shen M, Ding Y, Lu Y, Ishaq HM, Li D, Yan D, Wang Q, Zhang R. Integrated Analyses of the Gut Microbiota, Intestinal Permeability, and Serum Metabolome Phenotype in Rats with Alcohol Withdrawal Syndrome. Appl Environ Microbiol 2021; 87:e0083421. [PMID: 34190609 PMCID: PMC8388829 DOI: 10.1128/aem.00834-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/22/2021] [Indexed: 11/20/2022] Open
Abstract
The etiology of alcohol dependence is not completely understood. Increasing evidence reveals that gut microbiota dysbiosis is associated with certain psychiatric disorders, including alcoholism, through the "microbiota-gut-brain" axis. The aims of this study were to evaluate the effect of alcohol abuse on the gut microbiota, intestinal permeability and serum metabolic profile and to determine whether alcohol-induced alterations in gut microbiota are correlated with gut permeability and serum metabolic phenotype changes. 16S rRNA gene high-throughput sequencing and nontarget metabolomics techniques were applied in an alcohol-dependent rat model in the present study. The results showed that alcohol intake altered the composition and structure of the colonic microbiota, especially the relative abundances of commensal microbes in the families Lachnospiraceae and Prevotellaceae, which were significantly decreased. Alcohol-dependent rats developed gut leakiness and a serum metabolic phenotype disorder. The valine, leucine and isoleucine biosynthesis pathways and arginine and proline metabolism pathways were obviously influenced by alcohol intake. Moreover, alcohol consumption disturbed the brain's neurotransmitter homeostasis. Regression analysis showed that alcohol-induced colonic microbiota dysbiosis was strongly associated with increased intestinal permeability and serum metabolic phenotype and neurotransmitter disorders. These results revealed that gut microbiota dysbiosis and serum metabolite alteration might be a cofactor for developing of alcohol dependence. IMPORTANCE Gut microbiota dysbiosis is associated with certain psychiatric disorders through the "microbiota-gut-brain" axis. Here, we revealed that alcohol consumption induced colonic microbiota dysbiosis, increased intestinal permeability, and altered the serum metabolic phenotype in rats, and there was a strong correlation between gut microbiota dysbiosis and serum metabolite disorders. Thus, gut microbiota dysbiosis and serum metabolite alteration may be a cofactor for development of alcohol dependence.
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Affiliation(s)
- Fan Yang
- The Second Affiliated Hospital of Xinxiang Medical University, Henan Key Laboratory of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China
- Department of Microbiology, School of Basic Medical Science, Xinxiang Medical University, Xinxiang, China
| | - Jidong Wei
- Department of Microbiology, School of Basic Medical Science, Xinxiang Medical University, Xinxiang, China
| | - Mengke Shen
- Department of Microbiology, School of Basic Medical Science, Xinxiang Medical University, Xinxiang, China
| | - Yating Ding
- Department of Microbiology, School of Basic Medical Science, Xinxiang Medical University, Xinxiang, China
| | - Yufan Lu
- Department of Microbiology, School of Basic Medical Science, Xinxiang Medical University, Xinxiang, China
| | - Hafiz Muhammad Ishaq
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
| | - Duan Li
- Department of Microbiology, School of Basic Medical Science, Xinxiang Medical University, Xinxiang, China
| | - Dong Yan
- Department of Microbiology, School of Basic Medical Science, Xinxiang Medical University, Xinxiang, China
| | - Qi Wang
- The Second Affiliated Hospital of Xinxiang Medical University, Henan Key Laboratory of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China
| | - Ruiling Zhang
- The Second Affiliated Hospital of Xinxiang Medical University, Henan Key Laboratory of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China
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Santos-Molina L, Herrerias A, Zawatsky CN, Gunduz-Cinar O, Cinar R, Iyer MR, Wood CM, Lin Y, Gao B, Kunos G, Godlewski G. Effects of a Peripherally Restricted Hybrid Inhibitor of CB1 Receptors and iNOS on Alcohol Drinking Behavior and Alcohol-Induced Endotoxemia. Molecules 2021; 26:5089. [PMID: 34443679 PMCID: PMC8399901 DOI: 10.3390/molecules26165089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 12/26/2022] Open
Abstract
Alcohol consumption is associated with gut dysbiosis, increased intestinal permeability, endotoxemia, and a cascade that leads to persistent systemic inflammation, alcoholic liver disease, and other ailments. Craving for alcohol and its consequences depends, among other things, on the endocannabinoid system. We have analyzed the relative role of central vs. peripheral cannabinoid CB1 receptors (CB1R) using a "two-bottle" as well as a "drinking in the dark" paradigm in mice. The globally acting CB1R antagonist rimonabant and the non-brain penetrant CB1R antagonist JD5037 inhibited voluntary alcohol intake upon systemic but not upon intracerebroventricular administration in doses that elicited anxiogenic-like behavior and blocked CB1R-induced hypothermia and catalepsy. The peripherally restricted hybrid CB1R antagonist/iNOS inhibitor S-MRI-1867 was also effective in reducing alcohol consumption after oral gavage, while its R enantiomer (CB1R inactive/iNOS inhibitor) was not. The two MRI-1867 enantiomers were equally effective in inhibiting an alcohol-induced increase in portal blood endotoxin concentration that was caused by increased gut permeability. We conclude that (i) activation of peripheral CB1R plays a dominant role in promoting alcohol intake and (ii) the iNOS inhibitory function of MRI-1867 helps in mitigating the alcohol-induced increase in endotoxemia.
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Affiliation(s)
- Luis Santos-Molina
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.S.-M.); (A.H.); (G.K.)
| | - Alexa Herrerias
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.S.-M.); (A.H.); (G.K.)
| | - Charles N. Zawatsky
- Section on Fibrotic Disorders, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (C.N.Z.); (R.C.)
| | - Ozge Gunduz-Cinar
- Laboratory of Behavioral and Genomic Neuroscience, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA;
| | - Resat Cinar
- Section on Fibrotic Disorders, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (C.N.Z.); (R.C.)
| | - Malliga R. Iyer
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (M.R.I.); (C.M.W.)
| | - Casey M. Wood
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (M.R.I.); (C.M.W.)
| | - Yuhong Lin
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (Y.L.); (B.G.)
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (Y.L.); (B.G.)
| | - George Kunos
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.S.-M.); (A.H.); (G.K.)
| | - Grzegorz Godlewski
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.S.-M.); (A.H.); (G.K.)
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