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Macura B, Kiecka A, Szczepanik M. Intestinal permeability disturbances: causes, diseases and therapy. Clin Exp Med 2024; 24:232. [PMID: 39340718 PMCID: PMC11438725 DOI: 10.1007/s10238-024-01496-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2024] [Accepted: 09/22/2024] [Indexed: 09/30/2024]
Abstract
Nowadays, a pathological increase in the permeability of the intestinal barrier (the so-called leaky gut) is increasingly being diagnosed. This condition can be caused by various factors, mainly from the external environment. Damage to the intestinal barrier entails a number of adverse phenomena: dysbiosis, translocation of microorganisms deep into the intestinal tissue, immune response, development of chronic inflammation. These phenomena can ultimately lead to a vicious cycle that promotes the development of inflammation and further damage to the barrier. Activated immune cells in mucosal tissues with broken barriers can migrate to other organs and negatively affect their functioning. Damaged intestinal barrier can facilitate the development of local diseases such as irritable bowel disease, inflammatory bowel disease or celiac disease, but also the development of systemic inflammatory diseases such as rheumatoid arthritis, ankylosing spondylitis, hepatitis, and lupus erythematosus, neurodegenerative or psychiatric conditions, or metabolic diseases such as diabetes or obesity. However, it must be emphasized that the causal links between a leaky gut barrier and the onset of certain diseases often remain unclear and require in-depth research. In light of recent research, it becomes crucial to prevent damage to the intestinal barrier, as well as to develop therapies for the barrier when it is damaged. This paper presents the current state of knowledge on the causes, health consequences and attempts to treat excessive permeability of the intestinal barrier.
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Affiliation(s)
- Barbara Macura
- Faculty of Health Sciences, Institute of Physiotherapy, Chair of Biomedical Sciences, Jagiellonian University Medical College, Kopernika 7a, 31-034, Kraków, Poland.
| | - Aneta Kiecka
- Faculty of Health Sciences, Institute of Physiotherapy, Chair of Biomedical Sciences, Jagiellonian University Medical College, Kopernika 7a, 31-034, Kraków, Poland
| | - Marian Szczepanik
- Faculty of Health Sciences, Institute of Physiotherapy, Chair of Biomedical Sciences, Jagiellonian University Medical College, Kopernika 7a, 31-034, Kraków, Poland
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2
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Ahmad Fadzuli NI, Lim SM, Neoh CF, Majeed ABA, Tan MP, Khor HM, Tan AH, Ramasamy K. Faecal intestinal permeability and intestinal inflammatory markers in older adults with age-related disorders: A systematic review and meta-analysis. Ageing Res Rev 2024; 101:102506. [PMID: 39306247 DOI: 10.1016/j.arr.2024.102506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/30/2024] [Accepted: 09/12/2024] [Indexed: 09/28/2024]
Abstract
This systematic review and meta-analysis appraised previous findings to uncover potential faecal intestinal permeability and intestinal inflammatory markers in older adults. A comprehensive literature search led to the identification of ten eligible studies with findings of potential faecal intestinal permeability (zonulin and alpha-1-antitrypsin) and intestinal inflammatory markers [calprotectin, lactoferrin and neutrophil gelatinase-associated lipocalin (NGAL)]. Most of the cases (n > 2) [Parkinson's disease (PD) and Alzheimer's disease (AD)] exhibited higher faecal alpha-1-antitrypsin, zonulin and calprotectin levels. The present meta-analysis confirmed significantly higher faecal alpha-1-antitrypsin in older persons with PD compared to non-PD [MD = 22.92 mg/dL; 95 % CI = 14.02-31.81, p < 0.00001; I2 = 0 % (p = 0.73)]. There was, however, no significant difference in faecal zonulin between PD and non-PD individuals [MD = 26.88 ng/mL; 95 % CI = -29.26-83.01, p = 0.35; I2 = 94 % (p < 0.0001)]. Meanwhile, faecal calprotectin was higher in older adults with GI symptoms, multiple system atrophy (MSA) or PD than the healthy controls [MD = 9.51 μg/g; 95 % CI = 0.07-18.95, p = 0.05; I2 = 84 % (p < 0.00001)]. Altogether, faecal calprotectin appears to be a potential intestinal inflammatory marker whereas previous findings on faecal alpha-1-antitrypsin as an intestinal permeability marker remain limited and require further validation.
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Affiliation(s)
- Nurul Izzati Ahmad Fadzuli
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor Darul Ehsan 42300, Malaysia
| | - Siong Meng Lim
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor Darul Ehsan 42300, Malaysia
| | - Chin Fen Neoh
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor Darul Ehsan 42300, Malaysia
| | - Abu Bakar Abdul Majeed
- Brain Degeneration and Therapeutics Group, Faculty of Pharmacy, University Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Selangor Darul Ehsan, Selangor Darul Ehsan 42300, Malaysia
| | - Maw Pin Tan
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Hui Min Khor
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Ai Huey Tan
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Kalavathy Ramasamy
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor Darul Ehsan 42300, Malaysia.
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Govender P, Ghai M. Population-specific differences in the human microbiome: Factors defining the diversity. Gene 2024; 933:148923. [PMID: 39244168 DOI: 10.1016/j.gene.2024.148923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 08/15/2024] [Accepted: 09/03/2024] [Indexed: 09/09/2024]
Abstract
Differences in microbial communities at different body habitats define the microbiome composition of the human body. The gut, oral, skin vaginal fluid and tissue microbiome, are pivotal for human development and immune response and cross talk between these microbiomes is evident. Population studies reveal that various factors, such as host genetics, diet, lifestyle, aging, and geographical location are strongly associated with population-specific microbiome differences. The present review discusses the factors that shape microbiome diversity in humans, and microbiome differences in African, Asian and Caucasian populations. Gut microbiome studies show that microbial species Bacteroides is commonly found in individuals living in Western countries (Caucasian populations), while Prevotella is prevalent in non-Western countries (African and Asian populations). This association is mainly due to the high carbohydrate, high fat diet in western countries in contrast to high fibre, low fat diets in African/ Asian regions. Majority of the microbiome studies focus on the bacteriome component; however, interesting findings reveal that increased bacteriophage richness, which makes up the virome component, correlates with decreased bacterial diversity, and causes microbiome dysbiosis. An increase of Caudovirales (bacteriophages) is associated with a decrease in enteric bacteria in inflammatory bowel diseases. Future microbiome studies should evaluate the interrelation between bacteriome and virome to fully understand their significance in the pathogenesis and progression of human diseases. With ethnic health disparities becoming increasingly apparent, studies need to emphasize on the association of population-specific microbiome differences and human diseases, to develop microbiome-based therapeutics. Additionally, targeted phage therapy is emerging as an attractive alternative to antibiotics for bacterial infections. With rapid rise in microbiome research, focus should be on standardizing protocols, advanced bioinformatics tools, and reducing sequencing platform related biases. Ultimately, integration of multi-omics data (genomics, transcriptomics, proteomics and metabolomics) will lead to precision models for personalized microbiome therapeutics advancement.
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Affiliation(s)
- Priyanka Govender
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Westville, South Africa
| | - Meenu Ghai
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Westville, South Africa.
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Maguire G, McGee ST. NeoGenesis MB-1 with CRISPR Technology Reduces the Effects of the Viruses (Phages) Associated with Acne - Case Report. Integr Med (Encinitas) 2024; 23:34-38. [PMID: 39355416 PMCID: PMC11441580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2024]
Abstract
We present a case of acne successfully treated with a topical spray containing live bacteria. The live bacteria used in the spray contain CRISPR, and adaptive immune system in the bacteria that are used to disable viral replication. Because acne skin contains bacteria in the microbiome where a shift toward non-CRISPR bacteria occurs, these bacteria are susceptible to bacteriophage infection and lysogeny. Normalizing the bacterial microbiome to one containing more CRISPR-containing bacteria renormalizes the microbiome by killing inflammation-causing bacteriophage infecting the non-CRISPR bacteria associated with acne.
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Affiliation(s)
- Greg Maguire
- California Physiological Society and Neogenesis, Inc.
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Devason AS, Thaiss CA, de la Fuente-Nunez C. Neuromicrobiology Comes of Age: The Multifaceted Interactions between the Microbiome and the Nervous System. ACS Chem Neurosci 2024; 15:2957-2965. [PMID: 39102500 DOI: 10.1021/acschemneuro.4c00307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024] Open
Abstract
The past decade has seen an explosion in our knowledge about the interactions between gut microbiota, the central nervous system, and the immune system. The gut-brain axis has recently gained much attention due to its role in regulating host physiology. This review explores recent findings concerning potential pathways linking the gut-brain axis to the initiation, pathophysiology, and development of neurological disorders. Our objective of this work is to uncover causative factors and pinpoint particular pathways and therapeutic targets that may facilitate the translation of experimental animal research into practical applications for human patients. We highlight three distinct yet interrelated mechanisms: (1) disruptions of both the intestinal and blood-brain barriers, (2) persistent neuroinflammation, and (3) the role of the vagus nerve.
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Affiliation(s)
- Ashwarya S Devason
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Institute for Immunology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, United States
- Institute for Obesity, Diabetes and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia 19104, Pennsylvania United States
| | - Christoph A Thaiss
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Institute for Immunology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, United States
- Institute for Obesity, Diabetes and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia 19104, Pennsylvania United States
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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Ivashkin VT, Maev IV, Lapina TL, Kucheryavyy YA, Abdulkhakov SR, Alekseeva OP, Alekseenko SA, Andreev DN, Bakulin IG, Bakulina NV, Bordin DS, Galeeva ZM, Dekhnich NN, Korochanskaya NV, Kuvaev RO, Livzan MA, Osipenko MF, Pirogov SS, Simanenkov VI, Storonova OA, Tertychnyy AS, Trukhmanov AS, Uspenskiy YP, Khlynov IB, Tsukanov VV. H. pylori-Associated Gastritis, Gastritis after H. pylori Eradication and H. pylori-Negative Gastritis: Algorithm of Diagnosis and Treatment (Literature Review and Resolution of the Expert Panel of the Russian Gastroenterological Association). RUSSIAN JOURNAL OF GASTROENTEROLOGY, HEPATOLOGY, COLOPROCTOLOGY 2024; 34:7-23. [DOI: 10.22416/1382-4376-2024-34-3-7-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/17/2024]
Abstract
Aim: to provide the basic points of the Expert Panel of the Russian Gastroenterological Association with discussion of measures to improve diagnostics, treatment and management of chronic gastritis patients.Key points. In the Russian Federation in 2021 more than 30 million patients diagnosed with “Gastritis and duodenitis” were recorded (K29 in accordance with International Classification of Diseases-10). H. pylori incidence rate in the Russian population has reduced and presently is about 40 %. In chronic gastritis pattern H. pylori-associated gastritis has still dominated though gastritis percent after successful H. pylori eradication, reactive gastropathy (including reflux gastritis) and autoimmune gastritis, has increased. Endoscopic and histologic examinations serve as key diagnostic techniques that provide a means for assessing the ethiology of gastritis, topography and degree of atrophic changes, gastritis staging as per OLGA/OLGIM system that properly correlates with the risk of stomach cancer and determines endoscopic examination strategy. H. pylori eradication therapy of gastritis serves as an etiotropic treatment and makes it possible to prevent progression of atrophy and stomach cancer. Conventional triple therapy combined with bismuth tripotassium dicitrate allows for achieving optimal cure rates of H. pylori eradication. Addition of rebamipide to regimens of H. pylori eradication improves their efficiency. Rebamipide arrests symptoms of dyspepsia in the case of chronic gastritis and functional dyspepsia. The administration of rebamipide for chronic gastritis makes it possible to influence the syndrome of increased epithelial permeability and inflammation, which makes it advisable to study it as a means of preventing stomach cancer and the progression of atrophy in various types of chronic gastritis.Conclusion. Members of the Expert Panel has approved the algorithm of diagnosis and treatment of H. pylori-associated gastritis, gastritis after H. pylori eradication and H. pylori-negative gastritis at the diagnostic stage in the case of initial presentation and long-term follow-up when needed.
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Affiliation(s)
- V. T. Ivashkin
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | | | - T. L. Lapina
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | | | - S. R. Abdulkhakov
- Kazan (Volga Region) Federal University; Kazan State Medical University
| | | | | | | | - I. G. Bakulin
- North-Western State Medical University named after I.I. Mechnikov
| | - N. V. Bakulina
- North-Western State Medical University named after I.I. Mechnikov
| | - D. S. Bordin
- Russian University of Medicine; A.S. Loginov Moscow Clinical Scientific Center; Tver State Medical University
| | - Z. M. Galeeva
- Kazan State Medical Academy — Branch of the Russian Medical Academy of Continuous Professional Education
| | | | | | - R. O. Kuvaev
- Clinical Oncological Hospital; N.I. Pirogov Russian National Research Medical University
| | | | | | - S. S. Pirogov
- Moscow Research Oncological Institute named after P.A. Gertsen — Branch of National Medical Research Radiological Center
| | - V. I. Simanenkov
- North-Western State Medical University named after I.I. Mechnikov
| | - O. A. Storonova
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - A. S. Tertychnyy
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - A. S. Trukhmanov
- I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - Yu. P. Uspenskiy
- First Saint-Petersburg State Medical University named after Academician I.P. Pavlov; Saint Petersburg State Pediatric Medical University
| | | | - V. V. Tsukanov
- Federal Research Center “Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences”, Separate Division “Scientific Research Institute of Medical Problems of the North”
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Li C, Li J, Zhou Q, Wang C, Hu J, Liu C. Effects of Physical Exercise on the Microbiota in Irritable Bowel Syndrome. Nutrients 2024; 16:2657. [PMID: 39203794 PMCID: PMC11356817 DOI: 10.3390/nu16162657] [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: 07/09/2024] [Revised: 08/06/2024] [Accepted: 08/08/2024] [Indexed: 09/03/2024] Open
Abstract
Irritable bowel syndrome (IBS) is a prevalent functional gastrointestinal disorder characterized by abdominal pain, bloating, diarrhea, and constipation. Recent studies have underscored the significant role of the gut microbiota in the pathogenesis of IBS. Physical exercise, as a non-pharmacological intervention, has been proposed to alleviate IBS symptoms by modulating the gut microbiota. Aerobic exercise, such as running, swimming, and cycling, has been shown to enhance the diversity and abundance of beneficial gut bacteria, including Lactobacillus and Bifidobacterium. These bacteria produce short-chain fatty acids that possess anti-inflammatory properties and support gut barrier integrity. Studies involving IBS patients participating in structured aerobic exercise programs have reported significant improvements in their gut microbiota's composition and diversity, alongside an alleviation of symptoms like abdominal pain and bloating. Additionally, exercise positively influences mental health by reducing stress and improving mood, which can further relieve IBS symptoms via the gut-brain axis. Long-term exercise interventions provide sustained benefits, maintaining the gut microbiota's diversity and stability, supporting immune functions, and reducing systemic inflammation. However, exercise programs must be tailored to individual needs to avoid exacerbating IBS symptoms. Personalized exercise plans starting with low-to-moderate intensity and gradually increasing in intensity can maximize the benefits and minimize risks. This review examines the impact of various types and intensities of physical exercise on the gut microbiota in IBS patients, highlighting the need for further studies to explore optimal exercise protocols. Future research should include larger sample sizes, longer follow-up periods, and examine the synergistic effects of exercise and other lifestyle modifications. Integrating physical exercise into comprehensive IBS management plans can enhance symptom control and improve patients' quality of life.
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Affiliation(s)
- Chunpeng Li
- Russian Sports University, Moscow 105122, Russia;
| | - Jianmin Li
- School of Tai Chi Culture Handan University, Handan 056005, China;
| | - Qiaorui Zhou
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (Q.Z.); (C.W.)
| | - Can Wang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (Q.Z.); (C.W.)
| | - Jiahui Hu
- Moscow State Normal University, Moscow 127051, Russia
| | - Chang Liu
- School of Sport Science, Beijing Sport University, Beijing 100084, China
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Zhu G, Yan L, Fang L, Fan C, Sun H, Zhou X, Zhang Y, Shi Z. Possible immune mechanisms of gut microbiota and its metabolites in the occurrence and development of immune thrombocytopenia. Front Microbiol 2024; 15:1426911. [PMID: 39171254 PMCID: PMC11335631 DOI: 10.3389/fmicb.2024.1426911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 07/26/2024] [Indexed: 08/23/2024] Open
Abstract
Immune thrombocytopenia (ITP) is an autoimmune disease characterized by increased platelet destruction and impaired production, leading to an elevated bleeding tendency. Recent studies have demonstrated an important link between the gut microbiota and the onset and progression of several immune diseases in humans, emphasizing that gut microbiota-derived metabolites play a non-negligible role in autoimmune diseases. The gut microbiota and its metabolites, such as short-chain fatty acids, oxidized trimethylamine, tryptophan metabolites, secondary bile acids and lipopolysaccharides, can alter intestinal barrier permeability by modulating immune cell differentiation and cytokine secretion, which in turn affects the systemic immune function of the host. It is therefore reasonable to hypothesize that ecological dysregulation of the gut microbiota may be an entirely new factor in the triggering of ITP. This article reviews the potential immune-related mechanisms of the gut microbiota and representative metabolites in ITP, as well as the important influence of leaky gut on the development of ITP, with a view to enriching the theoretical system of ITP-related gut microecology and providing new ideas for the study of ITP.
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Affiliation(s)
- Gengda Zhu
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lixiang Yan
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lijun Fang
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Institute of Hematology and Blood Diseases Hospital, National Clinical Medical Research Center for Blood Diseases, Tianjin, China
| | - Chenyang Fan
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hui Sun
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinli Zhou
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yucheng Zhang
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhexin Shi
- National Medical Research Center of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Lacy BE, Wise JL, Cangemi DJ. Leaky Gut Syndrome: Myths and Management. Gastroenterol Hepatol (N Y) 2024; 20:264-272. [PMID: 39193076 PMCID: PMC11345991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Leaky gut syndrome is a condition widely popularized in the lay literature, although it is not currently accepted as a formal medical diagnosis. Multiple gastrointestinal symptoms are ascribed to leaky gut syndrome, including diarrhea, bloating, distension, abdominal pain, and dyspeptic symptoms of early satiety, nausea, and postprandial fullness. The etiology and pathophysiology of leaky gut syndrome are multifactorial; a preceding gastrointestinal infection, inflammatory bowel disease, and certain medications may be relevant factors in some patients. The diagnosis of leaky gut syndrome is problematic. Although patients are frequently informed that the diagnosis can be readily made using results from blood work or stool studies, no validated test currently exists to make this diagnosis. Patients report a variety of myths about the etiology, diagnosis, and treatment of leaky gut syndrome, which can cause alarm and can frequently lead to expensive, unnecessary tests and unproven, sometimes dangerous treatments. This article reviews some of the most common myths about leaky gut syndrome and provides data from the scientific literature to correct these statements. Management strategies, based on data, are provided when available.
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Affiliation(s)
- Brian E. Lacy
- Division of Gastroenterology & Hepatology, Mayo Clinic Jacksonville, Jacksonville, Florida
| | - Journey L. Wise
- Graduate Research Education Program, Mayo Clinic Rochester, Rochester, Minnesota
| | - David J. Cangemi
- Division of Gastroenterology & Hepatology, Mayo Clinic Jacksonville, Jacksonville, Florida
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Marcobal AM, McConnell BR, Drexler RA, Ng KM, Maldonado-Gomez MX, Conner AMS, Vierra CG, Krishnakumar N, Gerber HM, Garcia JKA, Cerney JP, Amicucci MJ. Highly Soluble β-Glucan Fiber Modulates Mechanisms of Blood Glucose Regulation and Intestinal Permeability. Nutrients 2024; 16:2240. [PMID: 39064683 PMCID: PMC11279855 DOI: 10.3390/nu16142240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/05/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
β-glucans found in cereal grains have been previously demonstrated to improve blood glucose control; however, current understanding points to their high viscosity as the primary mechanism of action. In this work, we present a novel, highly soluble, low-viscosity β-glucan fiber (HS-BG fiber) and a preclinical dataset that demonstrates its impact on two mechanisms related to the prevention of hyperglycemia. Our results show that HS-BG inhibits the activity of two key proteins involved in glucose metabolism, the α-glucosidase enzyme and the SGLT1 transporter, thereby having the potential to slow starch digestion and subsequent glucose uptake. Furthermore, we demonstrate in a multi-donor fecal fermentation model that HS-BG is metabolized by several different members of the gut microbiome, producing high amounts of short-chain fatty acids (SCFAs), known agonists of GPR43 receptors in the gut related to GLP-1 secretion. The production of SCFAs was verified in the translational gut model, SHIME®. Moreover, HS-BG fiber fermentation produces compounds that restored permeability in disrupted epithelial cells, decreased inflammatory chemokines (CXCL10, MCP-1, and IL-8), and increased anti-inflammatory marker (IL-10), which could improve insulin resistance. Together, these data suggest that the novel HS-BG fiber is a promising new functional ingredient that can be used to modulate postprandial glycemic responses while the high solubility and low viscosity enable easy formulation in both beverage and solid food matrices.
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11
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Sikiric P, Sever M, Krezic I, Vranes H, Kalogjera L, Smoday IM, Vukovic V, Oroz K, Coric L, Skoro M, Kavelj I, Zubcic S, Sikiric S, Beketic Oreskovic L, Oreskovic I, Blagaic V, Brcic K, Strbe S, Staresinic M, Boban Blagaic A, Skrtic A, Seiwerth S. New studies with stable gastric pentadecapeptide protecting gastrointestinal tract. significance of counteraction of vascular and multiorgan failure of occlusion/occlusion-like syndrome in cytoprotection/organoprotection. Inflammopharmacology 2024:10.1007/s10787-024-01499-8. [PMID: 38980576 DOI: 10.1007/s10787-024-01499-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 05/28/2024] [Indexed: 07/10/2024]
Abstract
Since the early 1990s, when Robert's and Szabo's cytoprotection concept had already been more than one decade old, but still not implemented in therapy, we suggest the stable gastric pentadecapeptide BPC 157 as the most relevant mediator of the cytoprotection concept. Consequently, it can translate stomach and gastrointestinal mucosal maintenance, epithelium, and endothelium cell protection to the therapy of other tissue healing (organoprotection), easily applicable, as native and stable in human gastric juice for more than 24 h. These overwhelm current clinical evidence (i.e., ulcerative colitis, phase II, no side effects, and no lethal dose (LD1) in toxicology studies), as BPC 157 therapy effectively combined various tissue healing and lesions counteraction. BPC 157 cytoprotection relevance and vascular recovery, activation of collateral pathways, membrane stabilizer, eye therapy, wound healing capability, brain-gut and gut-brain functioning, tumor cachexia counteraction, muscle, tendon, ligament, and bone disturbances counteraction, and the heart disturbances, myocardial infarction, heart failure, pulmonary hypertension, arrhythmias, and thrombosis counteraction appeared in the recent reviews. Here, as concept resolution, we review the counteraction of advanced Virchow triad circumstances by activation of the collateral rescuing pathways, depending on injury, activated azygos vein direct blood flow delivery, to counteract occlusion/occlusion-like syndromes starting with the context of alcohol-stomach lesions. Counteraction of major vessel failure (congested inferior caval vein and superior mesenteric vein, collapsed azygos vein, collapsed abdominal aorta) includes counteraction of the brain (intracerebral and intraventricular hemorrhage), heart (congestion, severe arrhythmias), lung (hemorrhage), and congestion and lesions in the liver, kidney, and gastrointestinal tract, intracranial (superior sagittal sinus), portal and caval hypertension, aortal hypotension, and thrombosis, peripherally and centrally.
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Affiliation(s)
- Predrag Sikiric
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia.
| | - Marko Sever
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Surgery, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivan Krezic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Hrvoje Vranes
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Luka Kalogjera
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivan Maria Smoday
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Vlasta Vukovic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Katarina Oroz
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Luka Coric
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Marija Skoro
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Diagnostic and Interventional Radiology, Sestre Milosrdnice University Hospital Center, Zagreb, Croatia
| | - Ivana Kavelj
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Diagnostic and Interventional Radiology, Sestre Milosrdnice University Hospital Center, Zagreb, Croatia
| | - Slavica Zubcic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Suncana Sikiric
- Department of Pathology, School of Medicine, University of Zagreb, 10000, Zagreb, Croatia
| | | | - Ivana Oreskovic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Vladimir Blagaic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Klara Brcic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Sanja Strbe
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Mario Staresinic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
- Department of Surgery, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Alenka Boban Blagaic
- Department of Pharmacology, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Anita Skrtic
- Department of Pathology, School of Medicine, University of Zagreb, 10000, Zagreb, Croatia
| | - Sven Seiwerth
- Department of Pathology, School of Medicine, University of Zagreb, 10000, Zagreb, Croatia
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12
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Dmytriv TR, Storey KB, Lushchak VI. Intestinal barrier permeability: the influence of gut microbiota, nutrition, and exercise. Front Physiol 2024; 15:1380713. [PMID: 39040079 PMCID: PMC11260943 DOI: 10.3389/fphys.2024.1380713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 05/29/2024] [Indexed: 07/24/2024] Open
Abstract
The intestinal wall is a selectively permeable barrier between the content of the intestinal lumen and the internal environment of the body. Disturbances of intestinal wall permeability can potentially lead to unwanted activation of the enteric immune system due to excessive contact with gut microbiota and its components, and the development of endotoxemia, when the level of bacterial lipopolysaccharides increases in the blood, causing chronic low-intensity inflammation. In this review, the following aspects are covered: the structure of the intestinal wall barrier; the influence of the gut microbiota on the permeability of the intestinal wall via the regulation of functioning of tight junction proteins, synthesis/degradation of mucus and antioxidant effects; the molecular mechanisms of activation of the pro-inflammatory response caused by bacterial invasion through the TLR4-induced TIRAP/MyD88 and TRAM/TRIF signaling cascades; the influence of nutrition on intestinal permeability, and the influence of exercise with an emphasis on exercise-induced heat stress and hypoxia. Overall, this review provides some insight into how to prevent excessive intestinal barrier permeability and the associated inflammatory processes involved in many if not most pathologies. Some diets and physical exercise are supposed to be non-pharmacological approaches to maintain the integrity of intestinal barrier function and provide its efficient operation. However, at an early age, the increased intestinal permeability has a hormetic effect and contributes to the development of the immune system.
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Affiliation(s)
- Tetiana R. Dmytriv
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
- Research and Development University, Ivano-Frankivsk, Ukraine
| | | | - Volodymyr I. Lushchak
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
- Research and Development University, Ivano-Frankivsk, Ukraine
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13
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Mogilevski T, Maconi G, Gibson PR. Recent advances in measuring the effects of diet on gastrointestinal physiology: Probing the "leaky gut" and application of real-time ultrasound. JGH Open 2024; 8:e13081. [PMID: 38957479 PMCID: PMC11217769 DOI: 10.1002/jgh3.13081] [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: 01/18/2024] [Revised: 04/01/2024] [Accepted: 04/29/2024] [Indexed: 07/04/2024]
Abstract
There is a large pool of ideas in both mainstream and non-mainstream medicine on how diet can be manipulated in order to treat or prevent illnesses. Despite this, our understanding of how specific changes in diet influence the structure and function of the gastrointestinal tract is limited. This review aims to describe two areas that might provide key information on the integrity and function of the gastrointestinal tract. First, demystifying the "leaky gut syndrome" requires rational application and interpretation of tests of intestinal barrier function. Multiple ways of measuring barrier function have been described, but the inherent difficulties in translation from animal studies to humans have created misinterpretations and misconceptions. The intrinsic nature of intestinal barrier function is dynamic. This is seldom considered in studies of intestinal barrier assessment. To adequately understand the effects of dietary interventions on intestinal barrier function, background barrier function in different regions of the gut and the dynamic responses to stressors (such as psychological stress) should be assessed as a minimum. Second, intestinal ultrasound, which is now established in the assessment and monitoring of inflammatory bowel disease, has hitherto been poorly evaluated in assessing real-time intestinal function and novel aspects of structure in patients with disorders of gut-brain interaction. In conclusion, a more complete functional and structural profile that these investigations enable should permit a greater understanding of the effects of dietary manipulation on the gastrointestinal tract and provide clinically relevant information that, amongst other advantages, might permit opportunities for personalized health care delivery.
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Affiliation(s)
- Tamara Mogilevski
- Department of GastroenterologySchool of Translational Medicine, Monash UniversityMelbourneVictoriaAustralia
| | - Giovanni Maconi
- Gastroenterology Unit, Department of Biomedical and Clinical SciencesLuigi Sacco University Hospital University of MilanMilanItaly
| | - Peter R Gibson
- Department of GastroenterologySchool of Translational Medicine, Monash UniversityMelbourneVictoriaAustralia
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14
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Kruk A, Popowski D, Roszko MŁ, Granica S, Piwowarski JP. Heterogeneity of transport and metabolism of Tormentillae rhizoma constituents across human intestinal epithelium cellular model. Food Res Int 2024; 188:114326. [PMID: 38823825 DOI: 10.1016/j.foodres.2024.114326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/29/2024] [Accepted: 04/16/2024] [Indexed: 06/03/2024]
Abstract
Tormentilla erecta (L.) Raeusch is a widespread plant in Europe and Western Asia. Its rhizomes (Tormentilae rhizoma) are the main ingredient of herbal alcoholic beverages and can be used as a natural preservative in beer production. Apart from its unique taste qualities, therapeutic properties in gastrointestinal tract ailments are attributed to the tincture obtained from Tormentillae rhizoma. The presented research aimed to determine the mutual relationship between the components of Tormentillae tincture, present in popular alcoholic beverages, and intestinal epithelium (Caco-2 cell monolayers). A comprehensive qualitative and quantitative analysis of the tincture was performed, including the determination of condensed and hydrolyzable tannins as well as triterpenoids (UHPLC-DAD-MS/MS). Incubation of the tincture with Caco-2 monolayers has shown that only triterpenes pass through the monolayer, while condensed tannins are mainly bound to the monolayer surface. Ellagic acid derivatives were the only components of the Tormentillae tinctura being metabolized by cell monolayers to the compounds not previously described in the literature, which may be crucial in the treatment of intestinal diseases with inflammatory background.
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Affiliation(s)
- Aleksandra Kruk
- Microbiota Lab, Department of Pharmaceutical Biology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Street, 02-097 Warsaw, Poland.
| | - Dominik Popowski
- Microbiota Lab, Department of Pharmaceutical Biology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Street, 02-097 Warsaw, Poland; Department of Food Analysis, Institute of Agricultural and Food Biotechnology - State Research Institute, Rakowiecka 36 Street, 02-532 Warsaw, Poland.
| | - Marek Ł Roszko
- Department of Food Analysis, Institute of Agricultural and Food Biotechnology - State Research Institute, Rakowiecka 36 Street, 02-532 Warsaw, Poland.
| | - Sebastian Granica
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Street, 02-097 Warsaw, Poland.
| | - Jakub P Piwowarski
- Microbiota Lab, Department of Pharmaceutical Biology, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Street, 02-097 Warsaw, Poland.
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15
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Xiao X, Huang S, Yang Z, Zhu Y, Zhu L, Zhao Y, Bai J, Kim KH. Momordica charantia Bioactive Components: Hypoglycemic and Hypolipidemic Benefits Through Gut Health Modulation. J Med Food 2024; 27:589-600. [PMID: 38770678 DOI: 10.1089/jmf.2024.k.0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024] Open
Abstract
Momordica charantia (MC), a member of the Cucurbitaceae family, is well known for its pharmacological activities that exhibit hypoglycemic and hypolipidemic properties. These properties are largely because of its abundant bioactive compounds and phytochemicals. Over the years, numerous studies have confirmed the regulatory effects of MC extract on glycolipid metabolism. However, there is a lack of comprehensive reviews on newly discovered MC-related components, such as insulin receptor-binding protein-19, adMc1, and MC protein-30 and triterpenoids 3β,7β,25-trihydroxycucurbita-5,23(E)-dien-19-al, and the role of MC in gut microbiota and bitter taste receptors. This review offers an up-to-date overview of the recently reported chemical compositions of MC, including polysaccharides, saponins, polyphenolics, peptides, and their beneficial effects. It also provides the latest updates on the role of MC in the regulation of gut microbiota and bitter taste receptor signaling pathways. As a result, this review will serve as a theoretical basis for potential applications in the creation or modification of MC-based nutrient supplements.
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Affiliation(s)
- Xiang Xiao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Shiting Huang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Zihan Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Ying Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Lin Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yansheng Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Juan Bai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Kee-Hong Kim
- Department of Food Science, Purdue University, West Lafayette, Indiana, USA
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16
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Marino M, Rendine M, Venturi S, Porrini M, Gardana C, Klimis-Zacas D, Riso P, Del Bo' C. Red raspberry ( Rubus idaeus) preserves intestinal barrier integrity and reduces oxidative stress in Caco-2 cells exposed to a proinflammatory stimulus. Food Funct 2024; 15:6943-6954. [PMID: 38855989 DOI: 10.1039/d4fo01050g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Growing evidence showed the capacity of (poly)phenols to exert a protective role on intestinal health. Nevertheless, the existing findings are still heterogeneous and the underlying mechanisms remain unclear. This study investigated the potential benefits of a red raspberry (Rubus idaeus) powder on the integrity of the intestinal barrier, focusing on its ability to mitigate the effects of tumor necrosis factor-α (TNF-α)-induced intestinal permeability. Human colorectal adenocarcinoma cells (i.e., Caco-2 cells) were used as a model to assess the impact of red raspberry on intestinal permeability, tight junction expression, and oxidative stress. The Caco-2 cells were differentiated into polarized monolayers and treated with interferon-γ (IFN-γ) (10 ng mL-1) for 24 hours, followed by exposure to TNF-α (10 ng mL-1) in the presence or absence of red raspberry extract (1-5 mg mL-1). The integrity of the intestinal monolayer was evaluated using transepithelial electrical resistance (TEER) and fluorescein isothiocyanate-dextran (FITC-D) efflux assay. Markers of intestinal permeability (claudin-1, occludin, and zonula occludens-1 (ZO-1)) and oxidative stress (8-hydroxy-2-deoxyguanosine (8-OHdG) and protein carbonyl) were assessed using ELISA kits. Treatment with red raspberry resulted in a significant counteraction of TEER value loss (41%; p < 0.01) and a notable reduction in the efflux of FITC-D (-2.5 times; p < 0.01). Additionally, red raspberry attenuated the levels of 8-OHdG (-48.8%; p < 0.01), mitigating the detrimental effects induced by TNF-α. Moreover, red raspberry positively influenced the expression of the integral membrane protein claudin-1 (+18%; p < 0.01), an essential component of tight junctions. These findings contribute to the growing understanding of the beneficial effects of red raspberry in the context of the intestinal barrier. The effect of red raspberry against TNF-α-induced intestinal permeability observed in our in vitro model suggests, for the first time, its potential as a dietary strategy to promote gastrointestinal health.
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Affiliation(s)
- Mirko Marino
- Università degli Studi di Milano, DeFENS - Department of Food, Environmental and Nutritional Sciences, Via Celoria 2, 20133 Milano, Italy.
| | - Marco Rendine
- Università degli Studi di Milano, DeFENS - Department of Food, Environmental and Nutritional Sciences, Via Celoria 2, 20133 Milano, Italy.
| | - Samuele Venturi
- Università degli Studi di Milano, DeFENS - Department of Food, Environmental and Nutritional Sciences, Via Celoria 2, 20133 Milano, Italy.
| | - Marisa Porrini
- Università degli Studi di Milano, DeFENS - Department of Food, Environmental and Nutritional Sciences, Via Celoria 2, 20133 Milano, Italy.
| | - Claudio Gardana
- Università degli Studi di Milano, DeFENS - Department of Food, Environmental and Nutritional Sciences, Via Celoria 2, 20133 Milano, Italy.
| | | | - Patrizia Riso
- Università degli Studi di Milano, DeFENS - Department of Food, Environmental and Nutritional Sciences, Via Celoria 2, 20133 Milano, Italy.
| | - Cristian Del Bo'
- Università degli Studi di Milano, DeFENS - Department of Food, Environmental and Nutritional Sciences, Via Celoria 2, 20133 Milano, Italy.
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17
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Hsu MF, Koike S, Chen CS, Najjar SM, Meng TC, Haj FG. Pharmacological inhibition of the Src homology phosphatase 2 confers partial protection in a mouse model of alcohol-associated liver disease. Biomed Pharmacother 2024; 175:116590. [PMID: 38653109 DOI: 10.1016/j.biopha.2024.116590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 04/06/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024] Open
Abstract
Alcohol-associated liver disease (ALD) is a leading factor of liver-related death worldwide. ALD has various manifestations that include steatosis, hepatitis, and cirrhosis and is currently without approved pharmacotherapies. The Src homology phosphatase 2 (Shp2) is a drug target in some cancers due to its positive regulation of Ras-mitogen-activated protein kinase signaling and cell proliferation. Shp2 pharmacological inhibition yields beneficial outcomes in animal disease models, but its impact on ALD remains unexplored. This study aims to investigate the effects of Shp2 inhibition and its validity using a preclinical mouse model of ALD. We report that the administration of SHP099, a potent and selective allosteric inhibitor of Shp2, partially ameliorated ethanol-induced hepatic injury, inflammation, and steatosis in mice. Additionally, Shp2 inhibition was associated with reduced ethanol-evoked activation of extracellular signal-regulated kinase (ERK), oxidative, and endoplasmic reticulum (ER) stress in the liver. Besides the liver, excessive alcohol consumption induces multi-organ injury and dysfunction, including the intestine. Notably, Shp2 inhibition diminished ethanol-induced intestinal inflammation and permeability, abrogated the reduction in tight junction protein expression, and the activation of ERK and stress signaling in the ileum. Collectively, Shp2 pharmacological inhibition mitigates the deleterious effects of ethanol in the liver and intestine in a mouse model of ALD. Given the multifactorial aspects underlying ALD pathogenesis, additional studies are needed to decipher the utility of Shp2 inhibition alone or as a component in a multitherapeutic regimen to combat this deadly malady.
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Affiliation(s)
- Ming-Fo Hsu
- Department of Nutrition, University of California Davis, One Shields Ave, Davis, CA 95616, USA.
| | - Shinichiro Koike
- Department of Nutrition, University of California Davis, One Shields Ave, Davis, CA 95616, USA
| | - Chang-Shan Chen
- Institute of Biological Chemistry, Academia Sinica, Nankang, Taipei, Taiwan
| | - Sonia M Najjar
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA; Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA
| | - Tzu-Ching Meng
- Institute of Biological Chemistry, Academia Sinica, Nankang, Taipei, Taiwan
| | - Fawaz G Haj
- Department of Nutrition, University of California Davis, One Shields Ave, Davis, CA 95616, USA; Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA; Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, University of California Davis, Sacramento, CA 95817, USA.
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18
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Watanabe M, Nakai H, Ohara T, Kawasaki K, Murosaki S, Hirose Y. Beneficial effect of heat-killed Lactiplantibacillus plantarum L-137 on intestinal barrier function of rat small intestinal epithelial cells. Sci Rep 2024; 14:12319. [PMID: 38811623 PMCID: PMC11136994 DOI: 10.1038/s41598-024-62657-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024] Open
Abstract
Heat-killed Lactiplantibacillus plantarum L-137 (HK L-137) has been suggested to enhance the intestinal barrier in obese mice, leading to improvement of metabolic abnormalities and adipose tissue inflammation, and in healthy humans with overweight, leading to improvement of systemic inflammation. However, its detailed mechanism of action has not been clarified. Therefore, this study investigated the effects of HK L-137 on the permeability of rat small intestinal epithelial IEC-6 cells, tight junction-related gene and protein expression and localization, and intracellular signaling pathways involved in barrier function. Treatment of IEC-6 cells with HK L-137 for 26 h significantly reduced the permeability to fluorescein isothiocyanate-dextran (FD-4). HK L-137 also increased gene and protein expression of zonula occludens-1 (ZO-1), an important tight junction protein, without affecting the localization. Furthermore, inhibition of the extracellular signal-regulated kinase (ERK)1/2 pathway in IEC-6 cells canceled the HK L-137-related reduction in permeability to FD-4. Phosphorylation of ERK in IEC-6 cells was induced 15 min after the addition of HK L-137. These results suggest that HK L-137 reduces intestinal permeability partly through activating the ERK pathway and increasing expression of the ZO-1 gene and protein. Enhancement of intestinal barrier function with HK L-137 might be effective in preventing and treating leaky gut, for which no specific therapeutic tool has been established.
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Affiliation(s)
- Mototsugu Watanabe
- Research & Development Institute, House Wellness Foods Corporation, 3-20 Imoji, Itami, Hyogo, 664-0011, Japan.
| | - Hiroko Nakai
- Research & Development Institute, House Wellness Foods Corporation, 3-20 Imoji, Itami, Hyogo, 664-0011, Japan
| | - Tatsuya Ohara
- Research & Development Institute, House Wellness Foods Corporation, 3-20 Imoji, Itami, Hyogo, 664-0011, Japan
| | - Kengo Kawasaki
- Research & Development Institute, House Wellness Foods Corporation, 3-20 Imoji, Itami, Hyogo, 664-0011, Japan
| | - Shinji Murosaki
- Research & Development Institute, House Wellness Foods Corporation, 3-20 Imoji, Itami, Hyogo, 664-0011, Japan
| | - Yoshitaka Hirose
- Research & Development Institute, House Wellness Foods Corporation, 3-20 Imoji, Itami, Hyogo, 664-0011, Japan
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19
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Siqueira F, Rodrigues F, Ribeiro S, Veras H, Ferreira F, Siqueira R, dos Santos A, Havt A, Lima A. Induced acute hyperglycemia modifies the barrier function of the intestinal epithelium by tissue inflammation and tight junction disruption resulting in hydroelectrolytic secretion in an animal model. Braz J Med Biol Res 2024; 57:e13309. [PMID: 38656073 PMCID: PMC11027184 DOI: 10.1590/1414-431x2024e13309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 02/21/2024] [Indexed: 04/26/2024] Open
Abstract
Diabetic-metabolic syndrome (MetS-D) has a high prevalence worldwide, in which an association with the rupture of the intestinal epithelium barrier function (IEBF) has been pointed out, but the functional and morphological properties are still not well understood. This study aimed to evaluate the impact of acute hyperglycemia diabetes on intestinal tight junction proteins, metabolic failure, intestinal ion and water transports, and IEBF parameters. Diabetes was induced in male Rattus norvegicus (200-310 g) with 0.5 mL of streptozotocin (70 mg/kg). Glycemic and clinical parameters were evaluated every 7 days, and intestinal parameters were evaluated on the 14th day. The MetS-D animals showed a clinical pattern of hyperglycemia, with increases in the area of villi and crypts, lactulose:mannitol ratio, myeloperoxidase (MPO) activity, and intestinal tissue concentrations of malondialdehyde (MDA), but showed a reduction in reduced glutathione (GSH) when these parameters were compared to the control. The MetS-D group had increased secretion of Na+, K+, Cl-, and water compared to the control group in ileal tissue. Furthermore, we observed a reduction in mRNA transcript of claudin-2, claudin-15, and NHE3 and increases of SGLT-1 and ZO-1 in the MetS-D group. These results showed that MetS-D triggered intestinal tissue inflammation, oxidative stress, complex alterations in gene regulatory protein transcriptions of intestinal transporters and tight junctions, damaging the IEBF and causing hydroelectrolyte secretion.
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Affiliation(s)
- F.J.W.S. Siqueira
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - F.A.P. Rodrigues
- Departamento de Educação Física e Esporte, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Fortaleza, CE, Brasil
| | - S.A. Ribeiro
- Programa de Pós-Graduação em Ciências Médicas, Departamento de Patologia e Medicina Legal, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - H.N. Veras
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - F.C.S. Ferreira
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - R.C.L. Siqueira
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A.A. dos Santos
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A. Havt
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A.A.M. Lima
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
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20
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Zafar H, Saier MHH. An Insider's Perspective about the Pathogenic Relevance of Gut Bacterial Transportomes. Microb Physiol 2024; 34:133-141. [PMID: 38636461 PMCID: PMC11283328 DOI: 10.1159/000538779] [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: 01/08/2024] [Accepted: 04/04/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND The gut microbiome is integral to host health, hosting complex interactions between the host and numerous microbial species in the gastrointestinal tract. Key among the molecular mechanisms employed by gut bacteria are transportomes, consisting of diverse transport proteins crucial for bacterial adaptation to the dynamic, nutrient-rich environment of the mammalian gut. These transportomes facilitate the movement of a wide array of molecules, impacting both the host and the microbial community. SUMMARY This communication explores the significance of transportomes in gut bacteria, focusing on their role in nutrient acquisition, competitive interactions among microbes, and potential pathogenicity. It delves into the transportomes of key gut bacterial species like E. coli, Salmonella, Bacteroides, Lactobacillus, Clostridia, and Bifidobacterium, examining the functions of predicted transport proteins. The overview synthesizes recent research efforts, highlighting how these transportomes influence host-microbe interactions and contribute to the microbial ecology of the gut. KEY MESSAGES Transportomes are vital for the survival and adaptation of bacteria in the gut, enabling the import and export of various nutrients and molecules. The complex interplay of transport proteins not only supports bacterial growth and competition but also has implications for host health, potentially contributing to pathogenic processes. Understanding the pathogenic potential of transportomes in major gut bacterial species provides insights into gut health and disease, offering avenues for future research and therapeutic strategies.
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Affiliation(s)
- Hassan Zafar
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Milton H. Herman Saier
- Department of Molecular Biology, School of Biological Sciences, University of California at San Diego, La Jolla, California, 92093-0116, USA
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21
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Way R, Templeton H, Ball D, Cheng MH, Tobet SA, Chen T. A Microphysiological System for Studying Barrier Health of Live Tissues in Real Time. RESEARCH SQUARE 2024:rs.3.rs-4078220. [PMID: 38659839 PMCID: PMC11042443 DOI: 10.21203/rs.3.rs-4078220/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Epithelial cells create barriers that protect many different components in the body from their external environment. The gut in particular carries bacteria and other infectious agents. A healthy gut epithelial barrier prevents unwanted substances from accessing the underlying lamina propria while maintaining the ability to digest and absorb nutrients. Increased gut barrier permeability, better known as leaky gut, has been linked to several chronic inflammatory diseases. Yet understanding the cause of leaky gut and developing effective interventions are still elusive due to the lack of tools to maintain tissue's physiological environment while elucidating cellular functions under various stimuli ex vivo. This paper presents a microphysiological system capable of recording real-time barrier permeability of mouse gut tissues in a realistic physiological environment over extended durations. Key components of the microphysiological system include a microfluidic chamber designed to hold the live tissue explant and create a sufficient microphysiological environment to maintain tissue viability; proper media composition that preserves a microbiome and creates necessary oxygen gradients across the barrier; integrated sensor electrodes and supporting electronics for acquiring and calculating transepithelial electrical resistance (TEER); and a scalable system architecture to allow multiple chambers running in parallel for increased throughput. The experimental results demonstrate that the system can maintain tissue viability for up to 72 hours. The results also show that the custom-built and integrated TEER sensors are sufficiently sensitive to distinguish differing levels of barrier permeability when treated with collagenase and low pH media compared to control. Permeability variations in tissue explants from different positions in the intestinal tract were also investigated using TEER revealing their disparities in permeability. Finally, the results also quantitatively determine the effect of the muscle layer on total epithelial resistance.
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Affiliation(s)
- Ryan Way
- Department of Electrical & Computer Engineering, Colorado State University, Fort Collins, CO, USA
| | - Hayley Templeton
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Daniel Ball
- Department of Electrical & Computer Engineering, Colorado State University, Fort Collins, CO, USA
| | - Ming-Hao Cheng
- Department of Electrical & Computer Engineering, Colorado State University, Fort Collins, CO, USA
| | - Stuart A Tobet
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
- School of Biomedical Engineering, Colorado State University, Fort Collins, Colorado, USA
| | - Thomas Chen
- Department of Electrical & Computer Engineering, Colorado State University, Fort Collins, CO, USA
- School of Biomedical Engineering, Colorado State University, Fort Collins, Colorado, USA
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22
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Zhang J, Wang H, Liu Y, Shi M, Zhang M, Zhang H, Chen J. Advances in fecal microbiota transplantation for the treatment of diabetes mellitus. Front Cell Infect Microbiol 2024; 14:1370999. [PMID: 38660489 PMCID: PMC11039806 DOI: 10.3389/fcimb.2024.1370999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024] Open
Abstract
Diabetes mellitus (DM) refers to a group of chronic diseases with global prevalence, characterized by persistent hyperglycemia resulting from various etiologies. DM can harm various organ systems and lead to acute or chronic complications, which severely endanger human well-being. Traditional treatment mainly involves controlling blood sugar levels through replacement therapy with drugs and insulin; however, some patients still find a satisfactory curative effect difficult to achieve. Extensive research has demonstrated a close correlation between enteric dysbacteriosis and the pathogenesis of various types of DM, paving the way for novel therapeutic approaches targeting the gut microbiota to manage DM. Fecal microbiota transplantation (FMT), a method for re-establishing the intestinal microbiome balance, offers new possibilities for treating diabetes. This article provides a comprehensive review of the correlation between DM and the gut microbiota, as well as the current advancements in FMT treatment for DM, using FMT as an illustrative example. This study aims to offer novel perspectives and establish a theoretical foundation for the clinical diagnosis and management of DM.
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Affiliation(s)
- Juan Zhang
- Department of Endocrinology, the Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu, China
| | - Honggang Wang
- Department of Gastroenterology, the Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu, China
| | - Ying Liu
- Department of Endocrinology, the Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu, China
| | - Min Shi
- Department of Endocrinology, the Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu, China
| | - Minna Zhang
- Department of Gastroenterology, the Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu, China
| | - Hong Zhang
- Department of Endocrinology, the Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu, China
| | - Juan Chen
- Department of Endocrinology, the Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu, China
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Schoenthaler SJ, Prescott SL, Logan AC. Homicide or Happiness: Did Folate Fortification and Public Health Campaigns Influence Homicide Rates and the Great American Crime Decline? Nutrients 2024; 16:1075. [PMID: 38613108 PMCID: PMC11013728 DOI: 10.3390/nu16071075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 03/21/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
The last several years have witnessed a remarkable growth in research directed at nutrition and behavior, with increased interest in the field of nutritional criminology. It is becoming clear that dietary patterns and specific nutrients play an important role in cognition and behavior, including those related to aggression, violence, and antisocial activity. Included in this expanding knowledge base is the recognition that folate, through multiple pathways, including enzymatic reactions and gut microbiome ecology, plays a critical role in central nervous system functioning. These mechanistic advances allow for a retrospective analysis of a topic that remains unexplained-the sudden and unpredicted drop in homicide and other violent crime rates in the United States and other nations in the 1990s. Here, we revisit this marked reduction in homicide rates through the lens of the coincident public health campaign (and subsequent mandatory fortification) to increase folic acid intake. Based on objectively measured blood folate levels through the National Health and Nutrition Examination Surveys, there is little doubt that tissue folate witnessed a dramatic rise at the national level from 1988 through 2000. Drawing from accumulated and emerging research on the neurobehavioral aspects of folate, it is our contention that this relatively sudden and massive increase in tissue folate levels may have contributed to reductions in violent crime in the United States.
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Affiliation(s)
- Stephen J. Schoenthaler
- Department of Criminal Justice, College of the Arts, Humanities & Social Sciences, California State University, Turlock, CA 95202, USA;
| | - Susan L. Prescott
- Nova Institute for Health, Baltimore, MD 21231, USA
- School of Medicine, University of Western Australia, Perth, WA 6009, Australia
- Department of Family and Community Medicine, School of Medicine, University of Maryland, Baltimore, MD 21201, USA
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24
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Zhang X, Zhang H, Li S, Fang F, Yin Y, Wang Q. Recent progresses in gut microbiome mediates obstructive sleep apnea-induced cardiovascular diseases. FASEB Bioadv 2024; 6:118-130. [PMID: 38585431 PMCID: PMC10995711 DOI: 10.1096/fba.2023-00153] [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: 12/12/2023] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 04/09/2024] Open
Abstract
Obstructive sleep apnea (OSA) is a multifactorial sleep disorder with a high prevalence in the general population. OSA is associated with an increased risk of developing cardiovascular diseases (CVDs), particularly hypertension, and is linked to worse outcomes. Although the correlation between OSA and CVDs is firmly established, the mechanisms are poorly understood. Continuous positive airway pressure is primary treatment for OSA reducing cardiovascular risk effectively, while is limited by inadequate compliance. Moreover, alternative treatments for cardiovascular complications in OSA are currently not available. Recently, there has been considerable attention on the significant correlation between gut microbiome and pathophysiological changes in OSA. Furthermore, gut microbiome has a significant impact on the cardiovascular complications that arise from OSA. Nevertheless, a detailed understanding of this association is lacking. This review examines recent advancements to clarify the link between the gut microbiome, OSA, and OSA-related CVDs, with a specific focus on hypertension, and also explores potential health advantages of adjuvant therapy that targets the gut microbiome in OSA.
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Affiliation(s)
- Xiaotong Zhang
- Shanxi Provincial People’s HospitalThe Fifth Clinical Medical College of Shanxi Medical UniversityTaiyuanChina
| | - Haifen Zhang
- Shanxi Provincial People’s HospitalThe Fifth Clinical Medical College of Shanxi Medical UniversityTaiyuanChina
| | - Shuai Li
- Shanxi Provincial People’s HospitalThe Fifth Clinical Medical College of Shanxi Medical UniversityTaiyuanChina
| | - Fan Fang
- Shanxi Provincial People’s HospitalThe Fifth Clinical Medical College of Shanxi Medical UniversityTaiyuanChina
| | - Yanran Yin
- Shanxi Provincial People’s HospitalThe Fifth Clinical Medical College of Shanxi Medical UniversityTaiyuanChina
| | - Qiang Wang
- Department of Infectious Disease, Shanxi Provincial People's HospitalThe Fifth Clinical Medical College of Shanxi Medical UniversityTaiyuanChina
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25
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Schreiber F, Balas I, Robinson MJ, Bakdash G. Border Control: The Role of the Microbiome in Regulating Epithelial Barrier Function. Cells 2024; 13:477. [PMID: 38534321 DOI: 10.3390/cells13060477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/01/2024] [Accepted: 03/03/2024] [Indexed: 03/28/2024] Open
Abstract
The gut mucosal epithelium is one of the largest organs in the body and plays a critical role in regulating the crosstalk between the resident microbiome and the host. To this effect, the tight control of what is permitted through this barrier is of high importance. There should be restricted passage of harmful microorganisms and antigens while at the same time allowing the absorption of nutrients and water. An increased gut permeability, or "leaky gut", has been associated with a variety of diseases ranging from infections, metabolic diseases, and inflammatory and autoimmune diseases to neurological conditions. Several factors can affect gut permeability, including cytokines, dietary components, and the gut microbiome. Here, we discuss how the gut microbiome impacts the permeability of the gut epithelial barrier and how this can be harnessed for therapeutic purposes.
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26
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Acosta JE, Burns JL, Hillyer LM, Van K, Brendel EBK, Law C, Ma DWL, Monk JM. Effect of Lifelong Exposure to Dietary Plant and Marine Sources of n-3 Polyunsaturated Fatty Acids on Morphologic and Gene Expression Biomarkers of Intestinal Health in Early Life. Nutrients 2024; 16:719. [PMID: 38474847 DOI: 10.3390/nu16050719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Altered intestinal health is also associated with the incidence and severity of many chronic inflammatory conditions, which could be attenuated via dietary n-3 PUFA interventions. However, little is known about the effect of lifelong exposure to n-3 PUFA from plant and marine sources (beginning in utero via the maternal diet) on early life biomarkers of intestinal health. Harems of C57Bl/6 mice were randomly assigned to one of three isocaloric AIN-93G modified diets differing in their fat sources consisting of the following: (i) 10% safflower oil (SO, enriched in n-6 PUFA), (ii) 3% flaxseed oil + 7% safflower oil (FX, plant-based n-3 PUFA-enriched diet), or (iii) 3% menhaden fish oil + 7% safflower oil (MO, marine-based n-3 PUFA-enriched diet). Mothers remained on these diets throughout pregnancy and offspring (n = 14/diet) continued on the same parental diet until termination at 3 weeks of age. In ileum, villi:crypt length ratios were increased in both the FX and MO dietary groups compared to SO (p < 0.05). Ileum mRNA expression of critical intestinal health biomarkers was increased by both n-3 PUFA-enriched diets including Relmβ and REG3γ compared to SO (p < 0.05), whereas only the FX diet increased mRNA expression of TFF3 and Muc2 (p < 0.05) and only the MO diet increased mRNA expression of ZO-1 (p < 0.05). In the proximal colon, both the FX and MO diets increased crypt lengths compared to SO (p < 0.05), whereas only the MO diet increased goblet cell numbers compared to SO (p < 0.05). Further, the MO diet increased proximal colon mRNA expression of Relmβ and REG3γ (p < 0.05) and both MO and FX increased mRNA expression of Muc2 compared to SO (p < 0.05). Collectively, these results demonstrate that lifelong exposure to dietary n-3 PUFA, beginning in utero, from both plant and marine sources, can support intestinal health development in early life. The differential effects between plant and marine sources warrants further investigation for optimizing health.
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Affiliation(s)
- Julianna E Acosta
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Jessie L Burns
- Department of Health Sciences, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Lyn M Hillyer
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Kelsey Van
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Elaina B K Brendel
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Camille Law
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - David W L Ma
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Jennifer M Monk
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
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27
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Petrariu OA, Barbu IC, Niculescu AG, Constantin M, Grigore GA, Cristian RE, Mihaescu G, Vrancianu CO. Role of probiotics in managing various human diseases, from oral pathology to cancer and gastrointestinal diseases. Front Microbiol 2024; 14:1296447. [PMID: 38249451 PMCID: PMC10797027 DOI: 10.3389/fmicb.2023.1296447] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/18/2023] [Indexed: 01/23/2024] Open
Abstract
The imbalance of microbial composition and diversity in favor of pathogenic microorganisms combined with a loss of beneficial gut microbiota taxa results from factors such as age, diet, antimicrobial administration for different infections, other underlying medical conditions, etc. Probiotics are known for their capacity to improve health by stimulating the indigenous gut microbiota, enhancing host immunity resistance to infection, helping digestion, and carrying out various other functions. Concurrently, the metabolites produced by these microorganisms, termed postbiotics, which include compounds like bacteriocins, lactic acid, and hydrogen peroxide, contribute to inhibiting a wide range of pathogenic bacteria. This review presents an update on using probiotics in managing and treating various human diseases, including complications that may emerge during or after a COVID-19 infection.
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Affiliation(s)
- Oana-Alina Petrariu
- Microbiology-Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
- The Research Institute of the University of Bucharest, Bucharest, Romania
| | - Ilda Czobor Barbu
- Microbiology-Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
- The Research Institute of the University of Bucharest, Bucharest, Romania
- Academy of Romanian Scientists, Bucharest, Romania
| | - Adelina-Gabriela Niculescu
- The Research Institute of the University of Bucharest, Bucharest, Romania
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Politehnica University of Bucharest, Bucharest, Romania
| | - Marian Constantin
- The Research Institute of the University of Bucharest, Bucharest, Romania
- Institute of Biology of Romanian Academy, Bucharest, Romania
| | - Georgiana Alexandra Grigore
- Microbiology-Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
- The Research Institute of the University of Bucharest, Bucharest, Romania
- Academy of Romanian Scientists, Bucharest, Romania
- National Institute of Research and Development for Biological Sciences, Bucharest, Romania
| | - Roxana-Elena Cristian
- The Research Institute of the University of Bucharest, Bucharest, Romania
- National Institute of Research and Development for Biological Sciences, Bucharest, Romania
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Grigore Mihaescu
- Microbiology-Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Corneliu Ovidiu Vrancianu
- Microbiology-Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania
- The Research Institute of the University of Bucharest, Bucharest, Romania
- National Institute of Research and Development for Biological Sciences, Bucharest, Romania
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28
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Sah RK, Nandan A, Kv A, S P, S S, Jose A, Venkidasamy B, Nile SH. Decoding the role of the gut microbiome in gut-brain axis, stress-resilience, or stress-susceptibility: A review. Asian J Psychiatr 2024; 91:103861. [PMID: 38134565 DOI: 10.1016/j.ajp.2023.103861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/01/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023]
Abstract
Increased exposure to stress is associated with stress-related disorders, including depression, anxiety, and neurodegenerative conditions. However, susceptibility to stress is not seen in every individual exposed to stress, and many of them exhibit resilience. Thus, developing resilience to stress could be a big breakthrough in stress-related disorders, with the potential to replace or act as an alternative to the available therapies. In this article, we have focused on the recent advancements in gut microbiome research and the potential role of the gut-brain axis (GBA) in developing resilience or susceptibility to stress. There might be a complex interaction between the autonomic nervous system (ANS), immune system, endocrine system, microbial metabolites, and bioactive lipids like short-chain fatty acids (SCFAs), neurotransmitters, and their metabolites that regulates the communication between the gut microbiota and the brain. High fiber intake, prebiotics, probiotics, plant supplements, and fecal microbiome transplant (FMT) could be beneficial against gut dysbiosis-associated brain disorders. These could promote the growth of SCFA-producing bacteria, thereby enhancing the gut barrier and reducing the gut inflammatory response, increase the expression of the claudin-2 protein associated with the gut barrier, and maintain the blood-brain barrier integrity by promoting the expression of tight junction proteins such as claudin-5. Their neuroprotective effects might also be related to enhancing the expression of brain-derived neurotrophic factor (BDNF) and glucagon-like peptide (GLP-1). Further investigations are needed in the field of the gut microbiome for the elucidation of the mechanisms by which gut dysbiosis contributes to the pathophysiology of neuropsychiatric disorders.
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Affiliation(s)
- Ranjay Kumar Sah
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi 682 041, Kerala, India
| | - Amritasree Nandan
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi 682 041, Kerala, India
| | - Athira Kv
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi 682 041, Kerala, India.
| | - Prashant S
- Department of Pharmaceutical Chemistry, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi 682 041, Kerala, India
| | - Sathianarayanan S
- NITTE (Deemed to be University), NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, Mangalore, India
| | - Asha Jose
- JSS College of Pharmacy, JSS Academy of Higher Education and research, Ooty 643001, Tamil Nadu, India
| | - Baskar Venkidasamy
- Department of Oral & Maxillofacial Surgery, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai 600 077, Tamil Nadu, India.
| | - Shivraj Hariram Nile
- Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Sector-81, Mohali 140306, Punjab, India.
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29
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Datta S, Aggarwal D, Sehrawat N, Yadav M, Sharma V, Sharma A, Zghair AN, Dhama K, Sharma A, Kumar V, Sharma AK, Wang H. Hepatoprotective effects of natural drugs: Current trends, scope, relevance and future perspectives. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 121:155100. [PMID: 37801892 DOI: 10.1016/j.phymed.2023.155100] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 09/02/2023] [Accepted: 09/17/2023] [Indexed: 10/08/2023]
Abstract
BACKGROUND The liver is a well-known player in the metabolism and removal of drugs. Drug metabolizing enzymes in the liver detoxify drugs and xenobiotics, ultimately leading to the acquisition of homeostasis. However, liver toxicity and cell damage are not only related to the nature and dosage of a particular drug but are also influenced by other factors such as aging, immune status, environmental contaminants, microbial metabolites, gender, obesity, and expression of individual genes Furthermore, factors such as drugs, alcohol, and environmental contaminants could induce oxidative stress, thereby impairing the regenerative potential of the liver and causing several diseases. Persons suffering from other ailments and those with comorbidities are found to be more prone to drug-induced toxicities. Moreover, drug composition and drug-drug interactions could further aggravate the risk of drug-induced hepatotoxicity. A plethora of mechanisms are responsible for initiating liver cell damage and further aggravating liver cell injury, followed by impairment of homeostasis, ultimately leading to the generation of reactive oxygen species, immune-suppression, and oxidative stress. OBJECTIVE To summarize the potential of phytochemicals and natural bioactive compounds to treat hepatotoxicity and other liver diseases. STUDY DESIGN A deductive qualitative content analysis approach was employed to assess the overall outcomes of the research and review articles pertaining to hepatoprotection induced by natural drugs, along with analysis of the interventions. METHODS An extensive literature search of bibliographic databases, including Web of Science, PUBMED, SCOPUS, GOOGLE SCHOLAR, etc., was carried out to understand the role of hepatoprotective effects of natural drugs. RESULTS Bioactive natural products, including curcumin, resveratrol, etc., have been seen as neutralizing agents against the side effects induced by the drugs. Moreover, these natural products are dietary and are readily available; thus, could be supplemented along with drugs to reduce toxicity to cells. Probiotics, prebiotics, and synbiotics have shown promise of improving overall liver functioning, and these should be evaluated more extensively for their hepatoprotective potential. Therefore, selecting an appropriate natural product or a bioactive compound that is free of toxicity and offers a reliable solution for drug-induced liver toxicity is quintessential. CONCLUSIONS The current review highlights the role of natural bioactive products in neutralizing drug-induced hepatotoxicity. Efforts have been made to delineate the possible underlying mechanism associated with the neutralization process.
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Affiliation(s)
- Sonal Datta
- Department of Bio-Sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India
| | - Diwakar Aggarwal
- Department of Bio-Sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India
| | - Nirmala Sehrawat
- Department of Bio-Sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India
| | - Mukesh Yadav
- Department of Bio-Sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India
| | - Varruchi Sharma
- Department of Biotechnology & Bioinformatics, Sri Guru Gobind Singh College, Chandigarh 160019, India
| | - Ajay Sharma
- Department of Chemistry, Career Point University, Tikker - Kharwarian, Hamirpur, Himachal Pradesh 176041, India
| | - Abdulrazzaq N Zghair
- College of Health and Medical Techniques, Middle Technical University, Baghdad, Iraq
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, India
| | - Aanchal Sharma
- University Centre for Research and Development, University Institute of Biotechnology Chandigarh University, Gharuan, Mohali, India
| | - Vikas Kumar
- Department of Bio-Sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India
| | - Anil K Sharma
- Department of Biotechnology, Amity University, Sector-82-A, IT City Road, Mohali, Punjab 140306, India.
| | - Hailian Wang
- Institute of Organ Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
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30
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Maslennikov R, Poluektova E, Zolnikova O, Sedova A, Kurbatova A, Shulpekova Y, Dzhakhaya N, Kardasheva S, Nadinskaia M, Bueverova E, Nechaev V, Karchevskaya A, Ivashkin V. Gut Microbiota and Bacterial Translocation in the Pathogenesis of Liver Fibrosis. Int J Mol Sci 2023; 24:16502. [PMID: 38003692 PMCID: PMC10671141 DOI: 10.3390/ijms242216502] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/11/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
Cirrhosis is the end result of liver fibrosis in chronic liver diseases. Studying the mechanisms of its development and developing measures to slow down and regress it based on this knowledge seem to be important tasks for medicine. Currently, disorders of the gut-liver axis have great importance in the pathogenesis of cirrhosis. However, gut dysbiosis, which manifests as increased proportions in the gut microbiota of Bacilli and Proteobacteria that are capable of bacterial translocation and a decreased proportion of Clostridia that strengthen the intestinal barrier, occurs even at the pre-cirrhotic stage of chronic liver disease. This leads to the development of bacterial translocation, a process by which those microbes enter the blood of the portal vein and then the liver tissue, where they activate Kupffer cells through Toll-like receptor 4. In response, the Kupffer cells produce profibrogenic cytokines, which activate hepatic stellate cells, stimulating their transformation into myofibroblasts that produce collagen and other elements of the extracellular matrix. Blocking bacterial translocation with antibiotics, probiotics, synbiotics, and other methods could slow down the progression of liver fibrosis. This was shown in a number of animal models but requires further verification in long-term randomized controlled trials with humans.
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Affiliation(s)
- Roman Maslennikov
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
- The Interregional Public Organization “Scientific Community for the Promotion of the Clinical Study of the Human Microbiome”, 119048 Moscow, Russia
| | - Elena Poluektova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
- The Interregional Public Organization “Scientific Community for the Promotion of the Clinical Study of the Human Microbiome”, 119048 Moscow, Russia
| | - Oxana Zolnikova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Alla Sedova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Anastasia Kurbatova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Yulia Shulpekova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Natyia Dzhakhaya
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Svetlana Kardasheva
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Maria Nadinskaia
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Elena Bueverova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Vladimir Nechaev
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Anna Karchevskaya
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
| | - Vladimir Ivashkin
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, 119048 Moscow, Russia (A.S.); (N.D.); (M.N.); (E.B.)
- The Interregional Public Organization “Scientific Community for the Promotion of the Clinical Study of the Human Microbiome”, 119048 Moscow, Russia
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31
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Aleman RS, Page R, Cedillos R, Montero-Fernández I, Fuentes JAM, Olson DW, Aryana K. Influences of Yogurt with Functional Ingredients from Various Sources That Help Treat Leaky Gut on Intestinal Barrier Dysfunction in Caco-2 Cells. Pharmaceuticals (Basel) 2023; 16:1511. [PMID: 38004377 PMCID: PMC10675128 DOI: 10.3390/ph16111511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 11/26/2023] Open
Abstract
The impact of yogurts made with starter culture bacteria (L. bulgaricus and S. thermophilus) and supplemented with ingredients (maitake mushrooms, quercetin, L-glutamine, slippery elm bark, licorice root, N-acetyl-D-glucosamine, zinc orotate, and marshmallow root) that can help treat leaky gut were investigated using the Caco-2 cell monolayer as a measure of intestinal barrier dysfunction. Milk from the same source was equally dispersed into nine pails, and the eight ingredients were randomly allocated to the eight pails. The control had no ingredients. The Caco-2 cells were treated with isoflavone genistein (negative control) and growth media (positive control). Inflammation was stimulated using an inflammatory cocktail of cytokines (interferon-γ, tumor necrosis factor-α, and interleukin-1β) and lipopolysaccharide. The yogurt without ingredients (control yogurt) was compared to the yogurt treatments (yogurts with ingredients) that help treat leaky gut. Transepithelial electrical resistance (TEER) and paracellular permeability were measured to evaluate the integrity of the Caco-2 monolayer. Transmission electron microscopy (TEM), immunofluorescence microscopy (IM), and real-time quantitative polymerase chain reaction (RTQPCR) were applied to measure the integrity of tight junction proteins. The yogurts were subjected to gastric and intestinal digestion, and TEER was recorded. Ferrous ion chelating activity, ferric reducing potential, and DPPH radical scavenging were also examined to determine the yogurts' antioxidant capacity. Yogurt with quercetin and marshmallow root improved the antioxidant activity and TEER and had the lowest permeability in fluorescein isothiocyanate (FITC)-dextran and Lucifer yellow flux among the yogurt samples. TEM, IM, and RTQPCR revealed that yogurt enhanced tight junction proteins' localization and gene expression. Intestinal digestion of the yogurt negatively impacted inflammation-induced Caco-2 barrier dysfunction, while yogurt with quercetin, marshmallow root, maitake mushroom, and licorice root had the highest TEER values compared to the control yogurt. Yogurt fortification with quercetin, marshmallow root, maitake mushroom, and licorice root may improve functionality when dealing with intestinal barrier dysfunction.
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Affiliation(s)
- Ricardo S. Aleman
- School of Nutrition and Food Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70802, USA; (R.S.A.); (R.P.); (R.C.); (D.W.O.)
| | - Ryan Page
- School of Nutrition and Food Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70802, USA; (R.S.A.); (R.P.); (R.C.); (D.W.O.)
| | - Roberto Cedillos
- School of Nutrition and Food Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70802, USA; (R.S.A.); (R.P.); (R.C.); (D.W.O.)
| | - Ismael Montero-Fernández
- Department of Plant Biology, Ecology and Earth Sciencies, Faculty of Science, Universidad de Extremadura, Avda. de Elvas s/n, 06071 Badajoz, Spain;
| | - Jhunior Abraham Marcia Fuentes
- Faculty of Technological Sciences, Universidad Nacional de Agricultura, Road to Dulce Nombre de Culmí, Km 215, Barrio El Espino, Catacamas 16201, Honduras;
| | - Douglas W. Olson
- School of Nutrition and Food Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70802, USA; (R.S.A.); (R.P.); (R.C.); (D.W.O.)
| | - Kayanush Aryana
- School of Nutrition and Food Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70802, USA; (R.S.A.); (R.P.); (R.C.); (D.W.O.)
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Menezes CA, Zanette DL, Magalhães LB, da Silva JT, Lago RMRS, Gomes AN, dos Santos RA, Ladeia AMT, Vianna NA, Oliveira RR. Higher Bifidobacterium spp. fecal abundance is associated with a lower prevalence of hyperglycemia and cardiovascular risk markers among schoolchildren from Bahia, Brazil. PLoS One 2023; 18:e0290813. [PMID: 37856463 PMCID: PMC10586616 DOI: 10.1371/journal.pone.0290813] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 08/16/2023] [Indexed: 10/21/2023] Open
Abstract
The gut microbiome has recently been the subject of considerable scientific interest due to its essential bodily functions. Several factors can change the composition and function of the gut microbiome, and dietary habits are one of the most important contributors. Despite the recognition of the probiotic effects related to the genus Bifidobacterium spp. (BIF) studies aiming to assess its relationship with metabolic outcomes show conflicting results, particularly in the child population. This cross-sectional study aimed to evaluate the fecal abundance of BIF in a group of schoolchildren from public schools in Bahia, Brazil, and to investigate their relationship with food consumption and laboratory and anthropometric characteristics. A sample of 190 subjects aged 5 to 19y was randomly selected for dietary, laboratory, and anthropometric assessment. Fecal BIF abundance assessment was performed using the Real-Time Polymerase Chain Reaction assay. Fecal BIF abundance was higher among subjects who had lower intakes of meat. The abundance of BIF was also higher among subjects with lower Waist Circumference and Waist-to-Height Ratio (WHtR). Low BIF abundance was associated with a higher prevalence of hyperglycemia (PR 1.04, 95%CI 1.02-1.07, p = 0.001) and high WHtR (PR 1.04, 95%CI 1.01-1, 08, p = 0.015). These findings allow us to conclude that BIF fecal abundance is related to dietary and anthropometric parameters in schoolchildren, and its increase is associated with positive metabolic outcomes.
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Affiliation(s)
- Camilla A. Menezes
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil
| | - Dalila L. Zanette
- Carlos Chagas Institute, Oswaldo Cruz Foundation, Fiocruz, Curitiba, Paraná, Brazil
| | - Letícia B. Magalhães
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil
| | - Jacqueline Tereza da Silva
- Global Academy of Agriculture and Food Systems, The University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | | | - Alexvon N. Gomes
- Bahiana School of Medicine and Public Health, Salvador, Bahia, Brazil
| | - Ronald A. dos Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil
| | | | - Nelzair A. Vianna
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil
| | - Ricardo R. Oliveira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil
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Horowitz RI, Fallon J, Freeman PR. Comparison of the Efficacy of Longer versus Shorter Pulsed High Dose Dapsone Combination Therapy in the Treatment of Chronic Lyme Disease/Post Treatment Lyme Disease Syndrome with Bartonellosis and Associated Coinfections. Microorganisms 2023; 11:2301. [PMID: 37764145 PMCID: PMC10537894 DOI: 10.3390/microorganisms11092301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 08/27/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Twenty-five patients with relapsing and remitting Borreliosis, Babesiosis, and bartonellosis despite extended anti-infective therapy were prescribed double-dose dapsone combination therapy (DDDCT), followed by one or several courses of High Dose Dapsone Combination Therapy (HDDCT). A retrospective chart review of these 25 patients undergoing DDDCT therapy and HDDCT demonstrated that 100% improved their tick-borne symptoms, and patients completing 6-7 day pulses of HDDCT had superior levels of improvement versus 4-day pulses if Bartonella was present. At the completion of treatment, 7/23 (30.5%) who completed 8 weeks of DDDCT followed by a 5-7 day pulse of HDDCT remained in remission for 3-9 months, and 3/23 patients (13%) who recently finished treatment were 1 ½ months in full remission. In conclusion, DDDCT followed by 6-7 day pulses of HDDCT could represent a novel, effective anti-infective strategy in chronic Lyme disease/Post Treatment Lyme Disease Syndrome (PTLDS) and associated co-infections, including Bartonella, especially in individuals who have failed standard antibiotic protocols.
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Affiliation(s)
- Richard I. Horowitz
- Lyme and Tick-Borne Diseases Working Group, New York State Department of Health, Albany, NY 12224, USA
- Hudson Valley Healing Arts Center, Hyde Park, NY 12538, USA; (J.F.); (P.R.F.)
| | - John Fallon
- Hudson Valley Healing Arts Center, Hyde Park, NY 12538, USA; (J.F.); (P.R.F.)
| | - Phyllis R. Freeman
- Hudson Valley Healing Arts Center, Hyde Park, NY 12538, USA; (J.F.); (P.R.F.)
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Jain S, Marotta F, Haghshenas L, Yadav H. Treating Leaky Syndrome in the Over 65s: Progress and Challenges. Clin Interv Aging 2023; 18:1447-1451. [PMID: 37671072 PMCID: PMC10476862 DOI: 10.2147/cia.s409801] [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: 02/23/2023] [Accepted: 08/03/2023] [Indexed: 09/07/2023] Open
Abstract
As we age, our organ functions gradually decline. Circulating factors in the blood and the integrity of organ barriers can become dysfunctional, resulting in a condition known as leaky syndrome. This condition involves the unregulated exchange or leakage of components between organs. However, the triggers of leaky syndrome, as well as its role in aging-related disorders and illnesses, remain largely unknown. In this editorial, we discuss potential mechanisms that originate from the gut and resident microbes (microbiome) to contribute in leaky syndrome. Furthermore, we explore how the food we consume can impact the development of leaky syndrome, potentially influencing the biology of aging and challenges to diagnose the leaky gut condition accurately and clinically.
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Affiliation(s)
- Shalini Jain
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, Tampa, FL, USA
| | | | - Leila Haghshenas
- Department of Clinical Bioinformatics, Harvard Medical School, Boston, MA, USA
| | - Hariom Yadav
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, Tampa, FL, USA
- Department of Internal Medicine- Digestive Diseases and Nutrition, University of South Florida, Tampa, FL, USA
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Ranneh Y, Mahmoud AM, Fadel A, Abu Bakar MF, Md Akim A. Comments on "Probiotic Bifidobacterium strains and galactooligosaccharides improve intestinal barrier function in obese adults but show no synergism when used together as synbiotics". Front Pharmacol 2023; 14:1228359. [PMID: 37663246 PMCID: PMC10469835 DOI: 10.3389/fphar.2023.1228359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Affiliation(s)
- Yazan Ranneh
- Department of Nutrition and Dietetics, College of Pharmacy, Al-Ain University, Al-Ain, United Arab Emirates
| | - Ayman M. Mahmoud
- Zoology Department, Faculty of Science, Physiology Division, Beni-Suef University, Beni-Suef, Egypt
- Department of Life Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, United Kingdom
| | - Abdulmannan Fadel
- School of Sport and Exercise Sciences, Liver-Pool John Moores University, Liverpool, United Kingdom
| | - Mohd Fadzelly Abu Bakar
- Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM), Pagoh, Johor, Malaysia
| | - Abdah Md Akim
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Novotný J, Horáková L, Řiháček M, Zálešáková D, Šťastník O, Mrkvicová E, Kumbár V, Pavlata L. Effect of Different Feed Particle Size on Gastrointestinal Tract Morphology, Ileal Digesta Viscosity, and Blood Biochemical Parameters as Markers of Health Status in Broiler Chickens. Animals (Basel) 2023; 13:2532. [PMID: 37570340 PMCID: PMC10417443 DOI: 10.3390/ani13152532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/21/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
The study is focused on how the physical structure of the feed affects the health status of broiler chickens. The aim of this study was to evaluate the influence of feed particle size in broiler diets on gastrointestinal tract morphology, digesta viscosity, and blood biochemical parameters. A total of 90 one-day-old male Ross 308 broiler chickens were randomly divided into three different experimental groups (with five replicates per pen), with 6 birds per cage. The first experimental group (Coarse) was fed with the coarsest particle size, with feed with a geometric mean diameter (GMD) of 1111.26 µm, the next group (Medium) was fed with a less coarse feed size of GMD 959.89 µm, and the last group (Fine) was fed a diet with a fine feed particle size of GMD 730.48 µm. The use of coarse feed particle size in the diet had a positive effect on the gizzard weight and small intestinal villi height and crypt depth, which increased the surface area intended for digesting nutrients. The use of finely ground particles in the feed increased the level of gamma-glutamyl transferase and at the same time, decreased the level of urea, which could indicate adverse changes in the liver.
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Affiliation(s)
- Jakub Novotný
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; (J.N.); (L.H.); (M.Ř.); (D.Z.); (O.Š.); (E.M.)
| | - Lucie Horáková
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; (J.N.); (L.H.); (M.Ř.); (D.Z.); (O.Š.); (E.M.)
| | - Michal Řiháček
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; (J.N.); (L.H.); (M.Ř.); (D.Z.); (O.Š.); (E.M.)
| | - Dana Zálešáková
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; (J.N.); (L.H.); (M.Ř.); (D.Z.); (O.Š.); (E.M.)
| | - Ondřej Šťastník
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; (J.N.); (L.H.); (M.Ř.); (D.Z.); (O.Š.); (E.M.)
| | - Eva Mrkvicová
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; (J.N.); (L.H.); (M.Ř.); (D.Z.); (O.Š.); (E.M.)
| | - Vojtěch Kumbár
- Department of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic;
| | - Leoš Pavlata
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; (J.N.); (L.H.); (M.Ř.); (D.Z.); (O.Š.); (E.M.)
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Marcia JA, Aleman RS, Kazemzadeh S, Manrique Fernández V, Martín Vertedor D, Kayanush A, Montero Fernández I. Isolated Fraction of Gastric-Digested Camel Milk Yogurt with Carao ( Cassia grandis) Pulp Fortification Enhances the Anti-Inflammatory Properties of HT-29 Human Intestinal Epithelial Cells. Pharmaceuticals (Basel) 2023; 16:1032. [PMID: 37513943 PMCID: PMC10383137 DOI: 10.3390/ph16071032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Functional foods have recently generated a lot of attention among consumers looking for healthy options. Studies have examined yogurt with carao to increase health benefits and probiotic characteristics. It has been determined that carao fruit and camel milk have high phenolic compound and antioxidant activity concentrations. The objective of this study was to examine if carao (0, 1.3, 2.65, and 5.3 g/L) incorporated into yogurt enhances anti-inflammatory stimulus and antioxidant activity and impacts the physio-chemical and sensory properties of camel milk yogurt. HT-29 cells were used as a model of anti-inflammatory response, including cytokine responses of IL-8 and mRNA production of IL-1β and TNF-α in gastric digested isolated fraction. In addition, pH, titratable acidity, Streptococcus thermophilus counts and Lactobacillus bulgaricus counts of camel yogurts were examined during the fermentation process in 0, 2.5, 5, and 7 h whereas viscosity, syneresis, and radical scavenging assay evaluations were determined at hour 7. Furthermore, a consumer study was performed. Compared to control samples, the incorporation of carao into yogurts did not lead to a significant (ρ > 0.05) difference in the pH. In contrast, titratable acidity (TA), viscosity, syneresis, and antioxidant capacity significantly increased with the inclusion of 2.65 and 5.3 g/L carao, while 5.3 g/L carao significantly (ρ < 0.05) increased the counts of both bacteria. The inflammatory response of IL-8 and the level of mRNA production of IL-1β and TNF-α was significantly (ρ < 0.05) lower with 2.65 and 5.3 g/L carao yogurt compared to control camel yogurt. Sensory attributes were not impacted by the addition of 1.3 and 2.65 g/L carao. Carao could be a possible ingredient to consider when improving the nutrition value of yogurt.
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Affiliation(s)
- Jhunior Abrahan Marcia
- Faculty of Technological Sciences, Universidad Nacional de Agricultura, Road to Dulce Nombre de Culmí, Km 215, Barrio El Espino, Catacamas 16201, Honduras
- Doctorate Program in Food Science, University of Extremadura, Avda. de Elvas, s/n, 06006 Badajoz, Spain
| | - Ricardo S Aleman
- School of Nutrition and Food Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
| | - Shirin Kazemzadeh
- Department of Dairy and Food Science, South Dakota State University, Brookings, SD 57007, USA
| | - Víctor Manrique Fernández
- Nutrition and Bromatology Area, Department of Animal Production and Food Science, University of Extremadura, Avda. Adolfo Suárez, s/n, 06004 Badajoz, Spain
| | - Daniel Martín Vertedor
- Department of Nature Conservation and Protected Areas, Government of Extremadura, 06800 Mérida, Spain
| | - Aryana Kayanush
- School of Nutrition and Food Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
| | - Ismael Montero Fernández
- Department of Chemical Engineering and Physical Chemistry, Area of Chemical Engineering, Faculty of Sciences, University of Extremadura, Avda. de Elvas, s/n, 06006 Badajoz, Spain
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Gunes-Bayir A, Mendes B, Dadak A. The Integral Role of Diets Including Natural Products to Manage Rheumatoid Arthritis: A Narrative Review. Curr Issues Mol Biol 2023; 45:5373-5388. [PMID: 37504257 PMCID: PMC10377866 DOI: 10.3390/cimb45070341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
Genetic and environmental factors including lifestyle are thought to play a key role in the pathophysiology of rheumatoid arthritis (RA). There is evidence that diet can enhance the inflammatory response in genetically predisposed individuals. On the other hand, certain types of diets can alleviate RA symptoms due to their anti-inflammatory and antioxidant activities. Also, natural compounds with potential effectiveness in RA management belong to different chemical classes such as flavonoids, polyphenols, carotenoids, and alkaloids with their antioxidant characteristics as well as probiotics. The nutritional approaches to prevent or extenuate the disease progress were examined in this narrative review which was conducted using the PubMed, ScienceDirect and Google Scholar databases and conforms to the Scale for the Assessment of Narrative Review Articles (SANRA) guidelines. Mediterranean and vegan diets equally have been shown to exhibit positive effects on RA as the consumption of dietary fiber, antioxidants and anti-inflammatory compounds from fruits, vegetables, grains, nuts, and seeds are high. Whereas Mediterranean diet additionally includes beneficial nutrients of animal origin such as omega-3 polyunsaturated fatty acids from fish and seafood, patients on vegan diet need to be monitored closely for intake of all critical nutrients. Certain calorie restrictions and intermittent fasting diets have been shown to benefit RA patients although there is an obvious need for further studies to establish solid evidence-based recommendations and guidelines. The research data available strongly suggest that dietary approaches with anti-inflammatory properties may help delay the onset of RA and/or improve symptoms and thus nutrition should be routinely addressed to facilitate management of the disease.
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Affiliation(s)
- Ayse Gunes-Bayir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Bezmialem Vakif University, 34065 Istanbul, Turkey
| | - Beyza Mendes
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Bezmialem Vakif University, 34065 Istanbul, Turkey
| | - Agnes Dadak
- Institute of Pharmacology and Toxicology, Clinical Pharmacology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
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Abstract
Cardiometabolic disease comprises cardiovascular and metabolic dysfunction and underlies the leading causes of morbidity and mortality, both within the United States and worldwide. Commensal microbiota are implicated in the development of cardiometabolic disease. Evidence suggests that the microbiome is relatively variable during infancy and early childhood, becoming more fixed in later childhood and adulthood. Effects of microbiota, both during early development, and in later life, may induce changes in host metabolism that modulate risk mechanisms and predispose toward the development of cardiometabolic disease. In this review, we summarize the factors that influence gut microbiome composition and function during early life and explore how changes in microbiota and microbial metabolism influence host metabolism and cardiometabolic risk throughout life. We highlight limitations in current methodology and approaches and outline state-of-the-art advances, which are improving research and building toward refined diagnosis and treatment options in microbiome-targeted therapies.
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Affiliation(s)
- Curtis L Gabriel
- Division of Gastroenterology, Hepatology and Nutrition (C.L.G.), Vanderbilt University Medical Center, Nashville
- Tennessee Center for AIDS Research (C.L.G.), Vanderbilt University Medical Center, Nashville
| | - Jane F Ferguson
- Division of Cardiovascular Medicine (J.F.F.), Vanderbilt University Medical Center, Nashville
- Vanderbilt Microbiome Innovation Center (J.F.F.), Vanderbilt University Medical Center, Nashville
- Vanderbilt Institute for Infection, Immunology, and Inflammation (J.F.F.), Vanderbilt University Medical Center, Nashville
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Bagyánszki M, Bódi N. Key elements determining the intestinal region-specific environment of enteric neurons in type 1 diabetes. World J Gastroenterol 2023; 29:2704-2716. [PMID: 37274063 PMCID: PMC10237112 DOI: 10.3748/wjg.v29.i18.2704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/28/2023] [Accepted: 04/17/2023] [Indexed: 05/11/2023] Open
Abstract
Diabetes, as a metabolic disorder, is accompanied with several gastrointestinal (GI) symptoms, like abdominal pain, gastroparesis, diarrhoea or constipation. Serious and complex enteric nervous system damage is confirmed in the background of these diabetic motility complaints. The anatomical length of the GI tract, as well as genetic, developmental, structural and functional differences between its segments contribute to the distinct, intestinal region-specific effects of hyperglycemia. These observations support and highlight the importance of a regional approach in diabetes-related enteric neuropathy. Intestinal large and microvessels are essential for the blood supply of enteric ganglia. Bidirectional morpho-functional linkage exists between enteric neurons and enteroglia, however, there is also a reciprocal communication between enteric neurons and immune cells on which intestinal microbial composition has crucial influence. From this point of view, it is more appropriate to say that enteric neurons partake in multidirectional communication and interact with these key players of the intestinal wall. These interplays may differ from segment to segment, thus, the microenvironment of enteric neurons could be considered strictly regional. The goal of this review is to summarize the main tissue components and molecular factors, such as enteric glia cells, interstitial cells of Cajal, gut vasculature, intestinal epithelium, gut microbiota, immune cells, enteroendocrine cells, pro-oxidants, antioxidant molecules and extracellular matrix, which create and determine a gut region-dependent neuronal environment in diabetes.
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Affiliation(s)
- Mária Bagyánszki
- Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Szeged H-6726, Hungary
| | - Nikolett Bódi
- Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Szeged H-6726, Hungary
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Aleman RS, Paz D, Cedillos R, Tabora M, Olson DW, Aryana K. Attributes of Culture Bacteria as Influenced by Ingredients That Help Treat Leaky Gut. Microorganisms 2023; 11:microorganisms11040893. [PMID: 37110316 PMCID: PMC10144211 DOI: 10.3390/microorganisms11040893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Consumers are becoming aware of functional ingredients such as medicinal herbs, polyphenols, mushrooms, amino acids, proteins, and probiotics more than ever before. Like yogurt and its probiotics, L-glutamine, quercetin, slippery elm bark, marshmallow root, N-acetyl-D-glucosamine, licorice root, maitake mushrooms, and zinc orotate have demonstrated health benefits through gut microbiota. The impact of these ingredients on yogurt starter culture bacteria characteristics is not well known. The objective of this study was to determine the influence of these ingredients on the probiotic characteristics, tolerance to gastric juices and lysozyme, protease activity, and viability of Streptococcus thermophilus STI-06 and Lactobacillus bulgaricus LB-12. Acid tolerance was determined at 0, 30, 60, 90, and 120 min of incubation, whereas bile tolerance was analyzed at 0, 4, and 8 h. The microbial growth was determined at 0, 2, 4, 6, 8, 10, 12, 14, and 16 h of incubation, while protease activity was evaluated at 0, 12, and 24 h. The application of marshmallow root, licorice root, and slippery elm bark improved bile tolerance and acid tolerance of S. thermophilus. These ingredients did not impact the bile tolerance, acid tolerance, and simulated gastric juice tolerance characteristics of L. bulgaricus over 8 h and 120 min (respectively) of incubation. Similarly, the growth of S. thermophilus and L. bulgaricus was not affected by any of these functional ingredients. The application of marshmallow root, N-acetyl-D-glucosamine, and maitake mushroom significantly increased the protease activity of S. thermophilus, whereas the protease activity of L. bulgaricus was not affected by any ingredient. Compared to the control, marshmallow root and quercetin samples had higher mean log counts and log counts for S. thermophilus on the simulated gastric juice and lysozyme resistance in vitro test, respectively. For L. bulgaricus, licorice root, quercetin, marshmallow root, and slippery elm bark samples had higher log counts than the control samples.
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De Gregorio A, Serafino A, Krasnowska EK, Superti F, Di Fazio MR, Fuggetta MP, Hammarberg Ferri I, Fiorentini C. Protective Effect of Limosilactobacillus fermentum ME-3 against the Increase in Paracellular Permeability Induced by Chemotherapy or Inflammatory Conditions in Caco-2 Cell Models. Int J Mol Sci 2023; 24:ijms24076225. [PMID: 37047193 PMCID: PMC10094186 DOI: 10.3390/ijms24076225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Chemotherapy- or inflammation-induced increase in intestinal permeability represents a severe element in disease evolution in patients suffering from colorectal cancer and gut inflammatory conditions. Emerging data strongly support the gut microbiota’s role in preserving intestinal barrier integrity, whilst both chemotherapy and gut inflammation alter microbiota composition. Some probiotics might have a strong re-balancing effect on the gut microbiota, also positively affecting intestinal barrier integrity. In this study, we asked whether Limosilactobacillus fermentum ME-3 can prevent the intestinal paracellular permeability increase caused by the chemotherapeutic drug Irinotecan or by inflammatory stimuli, such as lipopolysaccharide (LPS). As an intestinal barrier model, we used a confluent and polarized Caco-2 cell monolayer and assessed the ME-3-induced effect on paracellular permeability by transepithelial electrical resistance (TEER) and fluorescent-dextran flux assays. The integrity of tight and adherens junctions was examined by confocal microscopy analysis. Transwell co-cultures of Caco-2 cells and U937-derived macrophages were used as models of LPS-induced intestinal inflammation to test the effect of ME-3 on release of the pro-inflammatory cytokines Tumor Necrosis Factor α, Interleukin-6, and Interleukin-8, was measured by ELISA. The results demonstrate that ME-3 prevents the IRI-induced increment in paracellular permeability, possibly by modulating the expression and localization of cell junction components. In addition, ME-3 inhibited both the increase in paracellular permeability and the release of pro-inflammatory cytokines in the co-culture model of LPS-induced inflammation. Our findings sustain the validity of L. fermentum ME-3 as a valuable therapeutic tool for preventing leaky gut syndrome, still currently without an available specific treatment.
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Affiliation(s)
- Alex De Gregorio
- Institute of Translational Pharmacology, National Research Council of Italy (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy; (A.D.G.); (E.K.K.); (M.P.F.)
| | - Annalucia Serafino
- Institute of Translational Pharmacology, National Research Council of Italy (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy; (A.D.G.); (E.K.K.); (M.P.F.)
- Correspondence: ; Tel.: +39-06-4993-4202
| | - Ewa Krystyna Krasnowska
- Institute of Translational Pharmacology, National Research Council of Italy (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy; (A.D.G.); (E.K.K.); (M.P.F.)
| | - Fabiana Superti
- National Centre for Innovative Technologies in Public Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy;
- Association for Research on Integrative Oncology Therapies (ARTOI) Foundation, Via Ludovico Micara, 73, 00165 Rome, Italy; (I.H.F.); (C.F.)
| | - Maria Rosa Di Fazio
- SH Outpatient Oncology Clinic, Via dei Paceri 86/A, 47891 Falciano, San Marino
| | - Maria Pia Fuggetta
- Institute of Translational Pharmacology, National Research Council of Italy (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy; (A.D.G.); (E.K.K.); (M.P.F.)
| | - Ivano Hammarberg Ferri
- Association for Research on Integrative Oncology Therapies (ARTOI) Foundation, Via Ludovico Micara, 73, 00165 Rome, Italy; (I.H.F.); (C.F.)
- (IHF) Outpatient Oncology Clinic, Via dell’Indipendenza 20, 40121 Bologna, Italy
| | - Carla Fiorentini
- Association for Research on Integrative Oncology Therapies (ARTOI) Foundation, Via Ludovico Micara, 73, 00165 Rome, Italy; (I.H.F.); (C.F.)
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