1
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Chen JJ, Sun JC, Yu ZJ, Tan ZM. Association Between Dietary Factors and Chronic Sinusitis Among Korean Individuals: Insights From a Large Population-Based Study in Asia. EAR, NOSE & THROAT JOURNAL 2024:1455613241254281. [PMID: 38804523 DOI: 10.1177/01455613241254281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024] Open
Abstract
Objective: Population-based studies on chronic sinusitis have predominantly focused on Europe and the Americas, but research on chronic sinusitis within large Asian populations remains scarce. This study aims to explore the link between dietary factors and chronic sinusitis among ethnic Koreans in Asia. Design: A cross-sectional study. Setting: Data were collected from the Korean National Health and Nutrition Examination Survey (KNHANES) in 2012. Participants: Participants in the study were included based on a doctor's diagnosis of chronic sinusitis, as determined through the ear, nose, and throat examination questionnaires. Results: Adolescents [adjusted P value (aP) < .001, adjusted odds ratio (aOR) = 1.881, 95% confidence interval (CI) = 1.380-2.564] and individuals with college and higher education (aP = .042, aOR = 1.298, 95% CI = 1.009-1.669) were more likely to develop chronic rhinosinusitis. In addition, levels of dietary fat [P = .001, interquartile range (IQR) = 34.085] and energy intake (P = .004, IQR = 981.106) were associated with an increased risk of chronic sinusitis. Moreover, high dietary inflammatory index (aP < .001, aOR = 0.547, 95% CI = 0.415-0.721), and high intake of fried pork chops (aP = .028, aOR = 1.335, 95% CI = 1.033-1.777), bread (aP = .024, aOR = 1.364, 95% CI = 1.042-1.786), and rice (aP = .021, aOR = 1.382, 95% CI = 1.051-1.818) were risk factors for chronic sinusitis, while cucumber consumption (aP < .001, aOR = 0.547, 95% CI = 0.415-0.721) was a protective factor for chronic sinusitis. Conclusion: This study revealed a significant correlation between diet and development of chronic sinusitis. These findings suggest that promoting an anti-inflammatory dietary pattern and providing guidance on healthy eating habits could help reduce the incidence of chronic sinusitis and enhance its management.
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Affiliation(s)
- Jiao-Jiao Chen
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Jing-Chao Sun
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Zhu-Jun Yu
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Zhi-Min Tan
- Department of Otorhinolaryngology, The First Affiliated Hospital, Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
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2
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Xu D, Peng Z, Li Y, Hou Q, Peng Y, Liu X. Progress and Clinical Applications of Crohn's Disease Exclusion Diet in Crohn's Disease. Gut Liver 2024; 18:404-413. [PMID: 37842728 PMCID: PMC11096903 DOI: 10.5009/gnl230093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 07/07/2023] [Accepted: 07/24/2023] [Indexed: 10/17/2023] Open
Abstract
Crohn's disease is a chronic intestinal inflammatory disorder of unknown etiology. Although the pharmacotherapies for Crohn's disease are constantly updating, nutritional support and adjuvant therapies have recently gained more attention. Due to advancements in clinical nutrition, various clinical nutritional therapies are used to treat Crohn's disease. Doctors treating inflammatory bowel disease can now offer several diets with more flexibility than ever. The Crohn's disease exclusion diet is a widely used diet for patients with active Crohn's disease. The Crohn's disease exclusion diet requires both exclusion and inclusion. Periodic exclusion of harmful foods and inclusion of wholesome foods gradually improves a patient's nutritional status. This article reviews the Crohn's disease exclusion diet, including its structure, mechanisms, research findings, and clinical applications.
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Affiliation(s)
- Duo Xu
- Departments of Gastroenterology, Xiangya Hospital of Central South University, Changsha, China
| | - Ziheng Peng
- Departments of Gastroenterology, Xiangya Hospital of Central South University, Changsha, China
| | - Yong Li
- Departments of Gastroenterology, Xiangya Hospital of Central South University, Changsha, China
| | - Qian Hou
- Departments of Clinical Nutrition, Xiangya Hospital of Central South University, Changsha, China
| | - Yu Peng
- Departments of Gastroenterology, Xiangya Hospital of Central South University, Changsha, China
- Hunan Key Laboratory of Organ Fibrosis, Changsha, China
- Hunan International Scientific and Technological Cooperation Base of Artificial Intelligence Computer Aided Diagnosis and Treatment for Digestive Disease, Changsha, China
| | - Xiaowei Liu
- Departments of Gastroenterology, Xiangya Hospital of Central South University, Changsha, China
- Hunan International Scientific and Technological Cooperation Base of Artificial Intelligence Computer Aided Diagnosis and Treatment for Digestive Disease, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China
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3
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Borrego-Ruiz A, Borrego JJ. Human gut microbiome, diet, and mental disorders. Int Microbiol 2024:10.1007/s10123-024-00518-6. [PMID: 38561477 DOI: 10.1007/s10123-024-00518-6] [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: 02/03/2024] [Revised: 03/15/2024] [Accepted: 03/22/2024] [Indexed: 04/04/2024]
Abstract
Diet is one of the most important external factor shaping the composition and metabolic activities of the gut microbiome. The gut microbiome plays a crucial role in host health, including immune system development, nutrients metabolism, and the synthesis of bioactive molecules. In addition, the gut microbiome has been described as critical for the development of several mental disorders. Nutritional psychiatry is an emerging field of research that may provide a link between diet, microbial function, and brain health. In this study, we have reviewed the influence of different diet types, such as Western, Mediterranean, vegetarian, and ketogenic, on the gut microbiota composition and function, and their implication in various neuropsychiatric and psychological disorders.
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Affiliation(s)
- Alejandro Borrego-Ruiz
- Departamento de Psicología Social y de las Organizaciones, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | - Juan J Borrego
- Departamento de Microbiología, Universidad de Málaga. Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina BIONAND, Málaga, Spain.
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4
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Khan S, Sebastian SA, Parmar MP, Ghadge N, Padda I, Keshta AS, Minhaz N, Patel A. Factors influencing the quality of life in inflammatory bowel disease: A comprehensive review. Dis Mon 2024; 70:101672. [PMID: 38143196 DOI: 10.1016/j.disamonth.2023.101672] [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: 12/26/2023]
Abstract
Inflammatory bowel disease (IBD) is a group of chronic relapsing disorders, including Crohn's disease (CD) and ulcerative colitis (UC), which affects an increasing number of people worldwide. In the last few decades, the scientific world has witnessed many developments in IBD management by controlling debilitating symptoms and remaining in remission for more protracted periods. Even so, we still have a large population suffering from active IBD. An individual's quality of life (QoL) can be severely affected by IBD, like any other chronic illness. In this article, we have reviewed factors influencing the QoL in IBD patients, including chronic pain, diet, physical activity, and psychological factors like depression, anxiety, and stress symptoms. We also discussed the mechanisms of diet-microbial-immune system interaction, currently available dietary therapies for active CD and UC, and early psycho-social interventions that can reduce the disease burden and improve QoL in IBD patients.
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Affiliation(s)
- Samina Khan
- University of Alberta Hospital, Edmonton, Alberta, Canada
| | | | | | - Nitin Ghadge
- Independent Researcher, Albany, NY, United States of America
| | - Inderbir Padda
- Richmond University Medical Center/Mount Sinai, Staten Island, NY, United States of America
| | | | - Naofel Minhaz
- Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
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5
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Haskey N, Estaki M, Ye J, Shim RK, Singh S, Dieleman LA, Jacobson K, Gibson DL. A Mediterranean Diet Pattern Improves Intestinal Inflammation Concomitant with Reshaping of the Bacteriome in Ulcerative Colitis: A Randomised Controlled Trial. J Crohns Colitis 2023; 17:1569-1578. [PMID: 37095601 PMCID: PMC10637046 DOI: 10.1093/ecco-jcc/jjad073] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Indexed: 04/26/2023]
Abstract
BACKGROUND AND AIMS Dietary patterns are important in managing ulcerative colitis [UC], given their influence on gut microbiome-host symbiosis and inflammation. We investigated whether the Mediterranean Diet Pattern [MDP] vs the Canadian Habitual Diet Pattern [CHD] would affect disease activity, inflammation, and the gut microbiome in patients with quiescent UC. METHODS We performed a prospective, randomised, controlled trial in adults [65% female; median age 47 years] with quiescent UC in an outpatient setting from 2017 to 2021. Participants were randomised to an MDP [n = 15] or CHD [n = 13] for 12 weeks. Disease activity [Simple Clinical Colitis Activity Index] and faecal calprotectin [FC] were measured at baseline and week 12. Stool samples were analysed by 16S rRNA gene amplicon sequencing. RESULTS The diet was well tolerated by the MDP group. At week 12, 75% [9/12] of participants in the CHD had an FC >100 μg/g, vs 20% [3/15] of participants in the MDP group. The MDP group had higher levels of total faecal short chain fatty acids [SCFAs] [p = 0.01], acetic acid [p = 0.03], and butyric acid [p = 0.03] compared with the CHD. Furthermore, the MDP induced alterations in microbial species associated with a protective role in colitis [Alistipes finegoldii and Flavonifractor plautii], as well as the production of SCFAs [Ruminococcus bromii]. CONCLUSIONS An MDP induces gut microbiome alterations associated with the maintenance of clinical remission and reduced FC in patients with quiescent UC. The data support that the MDP is a sustainable diet pattern that could be recommended as a maintenance diet and adjunctive therapy for UC patients in clinical remission. ClinicalTrials.gov no: NCT0305371.
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Affiliation(s)
- Natasha Haskey
- Department of Biology, Irving K Barber Faculty of Science, University of British Columbia-Okanagan, Kelowna, BC, Canada
| | - Mehrbod Estaki
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jiayu Ye
- Diabetes Center, University of California San Francisco, San Francisco, CA, USA
| | - Rachel K Shim
- Department of Public Health Sciences, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Sunny Singh
- Division of Gastroenterology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Levinus A Dieleman
- Division of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Kevan Jacobson
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition and British Columbia Children’s Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Deanna L Gibson
- Department of Biology, Irving K Barber Faculty of Science, University of British Columbia-Okanagan, Kelowna, BC, Canada
- Department of Medicine, Faculty of Medicine, University of British Columbia, BC, Canada
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6
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Avelar-Barragan J, Mendez Luque LF, Nguyen J, Nguyen H, Odegaard AO, Fleischman AG, Whiteson KL. Characterizing the microbiome of patients with myeloproliferative neoplasms during a Mediterranean diet intervention. mBio 2023; 14:e0230823. [PMID: 37877698 PMCID: PMC10746218 DOI: 10.1128/mbio.02308-23] [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: 09/02/2023] [Accepted: 09/18/2023] [Indexed: 10/26/2023] Open
Abstract
Myeloproliferative neoplasms (MPNs) are a class of rare hematological malignancies that result in the overproduction of myeloid lineage cells. These malignancies result in increased cytokine production and inflammation, which correlate with worsened symptom burden and prognosis. Other than bone marrow transplantation, there is no cure for myeloproliferative neoplasms. As such, treatments focus on reducing thrombotic risk, inflammation, and symptom burden. Because current pharmacological treatments carry significant side effects, there is a need to explore low-risk therapies that may modulate inflammation and alleviate symptom burden. One potential way to achieve this is adherence to a Mediterranean (MED) diet, which is rich in anti-inflammatory foods, reduces inflammatory biomarkers, and beneficially alters the gut microbiome. We performed a 15-week clinical trial of 28 individuals with MPN who were randomized to dietary counseling based on either a Mediterranean diet or standard U.S. Guidelines for Americans. Our primary objective was to determine whether MPN patients could adopt a Mediterranean eating pattern when supported with dietician counseling. As exploratory endpoints, we investigated the impact of diet and inflammation on the gut microbiome. Using shotgun metagenomic sequencing, we found that microbiome diversity and composition were stable throughout the study duration in both cohorts. Furthermore, we discovered significant differences in the microbiomes between MPN subtypes, such as increased beta-dispersion in subjects with myelofibrosis. Lastly, we found several significant correlations between the abundance of multiple bacterial taxa and cytokine levels. Together, this study provides insight into the interaction between diet, inflammation, and the gut microbiome. IMPORTANCE The gut microbiome serves as an interface between the host and the diet. Diet and the gut microbiome both play important roles in managing inflammation, which is a key aspect of myeloproliferative neoplasm (MPN). Studies have shown that a Mediterranean (MED) diet can reduce inflammation. Therefore, we longitudinally characterized the gut microbiomes of MPN patients in response to Mediterranean or standard 2020 US Guidelines for Americans dietary counseling to determine whether there were microbiome-associated changes in inflammation. We did not find significant changes in the gut microbiome associated with diet, but we did find several associations with inflammation. This research paves the way for future studies by identifying potential mechanistic targets implicated in inflammation within the MPN gut microbiome.
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Affiliation(s)
- Julio Avelar-Barragan
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, California, USA
| | - Laura F. Mendez Luque
- Department of Biological Chemistry, University of California Irvine, Irvine, California, USA
| | - Jenny Nguyen
- Division of Hematology/Oncology, University of California Irvine, Irvine, California, USA
| | - Hellen Nguyen
- Division of Hematology/Oncology, University of California Irvine, Irvine, California, USA
| | - Andrew O. Odegaard
- Department of Epidemiology and Biostatistics, University of California Irvine, Irvine, California, USA
| | - Angela G. Fleischman
- Department of Biological Chemistry, University of California Irvine, Irvine, California, USA
- Division of Hematology/Oncology, University of California Irvine, Irvine, California, USA
| | - Katrine L. Whiteson
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, California, USA
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7
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Pan I, Issac PK, Rahman MM, Guru A, Arockiaraj J. Gut-Brain Axis a Key Player to Control Gut Dysbiosis in Neurological Diseases. Mol Neurobiol 2023:10.1007/s12035-023-03691-3. [PMID: 37851313 DOI: 10.1007/s12035-023-03691-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/02/2023] [Indexed: 10/19/2023]
Abstract
Parkinson's disease is a chronic neuropathy characterised by the formation of Lewy bodies (misfolded alpha-synuclein) in dopaminergic neurons of the substantia nigra and other parts of the brain. Dopaminergic neurons play a vital role in generating both motor and non-motor symptoms. Finding therapeutic targets for Parkinson's disease (PD) is hindered due to an incomplete understanding of the disease's pathophysiology. Existing evidence suggests that the gut microbiota participates in the pathogenesis of PD via immunological, neuroendocrine, and direct neural mechanisms. Gut microbial dysbiosis triggers the loss of dopaminergic neurons via mitochondrial dysfunction. Gut dysbiosis triggers bacterial overgrowth in the small intestine, which increases the permeability barrier and induces systemic inflammation. It results in excessive stimulation of the innate immune system. In addition to that, activation of enteric neurons and enteric glial cells initiates the aggregation of alpha-synuclein. This alpha-synucleinopathy thus affects all levels of the brain-gut axis, including the central, autonomic, and enteric nervous systems. Though the neurobiological signaling cascade between the gut microbiome and the central nervous system is poorly understood, gut microbial metabolites may serve as a promising therapeutic strategy for PD. This article summarises all the known possible ways of bidirectional signal communication, i.e., the "gut-brain axis," where microbes from the middle gut interact with the brain and vice versa, and highlights a unique way to treat neurodegenerative diseases by maintaining homeostasis. The tenth cranial nerve (vagus nerve) plays a significant part in this signal communication. However, the leading regulatory factor for this axis is a diet that helps with microbial colonisation and brain function. Short-chain fatty acids (SCFAs), derived from microbially fermented dietary fibres, link host nutrition to maintain intestinal homeostasis. In addition to that, probiotics modulate cognitive function and the metabolic and behavioural conditions of the body. As technology advances, new techniques will emerge to study the tie-up between gut microbes and neuronal diseases.
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Affiliation(s)
- Ieshita Pan
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, Tamil Nadu, 602105, India.
| | - Praveen Kumar Issac
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, Tamil Nadu, 602105, India
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Ajay Guru
- Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulatur, Chengalpattu District, Tamil Nadu, 603203, India.
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8
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Blackmer-Raynolds L, Sampson TR. Overview of the Gut Microbiome. Semin Neurol 2023; 43:518-529. [PMID: 37562449 DOI: 10.1055/s-0043-1771463] [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: 08/12/2023]
Abstract
The human gastrointestinal tract is home to trillions of microorganisms-collectively referred to as the gut microbiome-that maintain a symbiotic relationship with their host. This diverse community of microbes grows and changes as we do, with developmental, lifestyle, and environmental factors all shaping microbiome community structure. Increasing evidence suggests this relationship is bidirectional, with the microbiome also influencing host physiological processes. For example, changes in the gut microbiome have been shown to alter neurodevelopment and have lifelong effects on the brain and behavior. Age-related changes in gut microbiome composition have also been linked to inflammatory changes in the brain, perhaps increasing susceptibility to neurological disease. Indeed, associations between gut dysbiosis and many age-related neurological diseases-including Parkinson's disease, Alzheimer's disease, multiple sclerosis, and amyotrophic lateral sclerosis-have been reported. Further, microbiome manipulation in animal models of disease highlights a potential role for the gut microbiome in disease development and progression. Although much remains unknown, these associations open up an exciting new world of therapeutic targets, potentially allowing for improved quality of life for a wide range of patient populations.
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Affiliation(s)
| | - Timothy R Sampson
- Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia
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9
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Li J, Li D, Chen Y, Chen W, Xu J, Gao L. Gut Microbiota and Aging: Traditional Chinese Medicine and Modern Medicine. Clin Interv Aging 2023; 18:963-986. [PMID: 37351381 PMCID: PMC10284159 DOI: 10.2147/cia.s414714] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/08/2023] [Indexed: 06/24/2023] Open
Abstract
The changing composition of gut microbiota, much like aging, accompanies people throughout their lives, and the inextricable relationship between both has recently attracted extensive attention as well. Modern medical research has revealed that a series of changes in gut microbiota are involved in the aging process of organisms, which may be because gut microbiota modulates aging-related changes related to innate immunity and cognitive function. At present, there is no definite and effective method to delay aging. However, Nobel laureate Tu Youyou's research on artemisinin has inspired researchers to study the importance of Traditional Chinese Medicine (TCM). TCM, as an ancient alternative medicine, has unique advantages in preventive health care and in treating diseases as it already has formed an independent understanding of the aging system. TCM practitioners believe that the mechanism of aging is mainly deficiency, and pathological states such as blood stasis, qi stagnation and phlegm coagulation can exacerbate the process of aging, which involves a series of organs, including the brain, kidney, heart, liver and spleen. Our current understanding of aging has led us to realise that TCM can indeed make some beneficial changes, such as the improvement of cognitive impairment. However, due to the multi-component and multi-target nature of TCM, the exploration of its mechanism of action has become extremely complex. While analysing the relationship between gut microbiota and aging, this review explores the similarities and differences in treatment methods and mechanisms between TCM and Modern Medicine, in order to explore a new approach that combines TCM and Modern Medicine to regulate gut microbiota, improve immunity and delay aging.
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Affiliation(s)
- Jinfan Li
- Department of First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250000, People’s Republic of China
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Dong Li
- Department of Diabetes, Licheng District Hospital of Traditional Chinese Medicine, Jinan, Shandong, 250100, People’s Republic of China
| | - Yajie Chen
- Department of Rehabilitation and Health Care, Jinan Vocational College of Nursing, Jinan, Shandong, 250100, People’s Republic of China
| | - Wenbin Chen
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
| | - Jin Xu
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
| | - Ling Gao
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
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10
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Strauss JC, Haskey N, Ramay HR, Ghosh TS, Taylor LM, Yousuf M, Ohland C, McCoy KD, Ingram RJM, Ghosh S, Panaccione R, Raman M. Weighted Gene Co-Expression Network Analysis Identifies a Functional Guild and Metabolite Cluster Mediating the Relationship between Mucosal Inflammation and Adherence to the Mediterranean Diet in Ulcerative Colitis. Int J Mol Sci 2023; 24:ijms24087323. [PMID: 37108484 PMCID: PMC10138710 DOI: 10.3390/ijms24087323] [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: 03/07/2023] [Revised: 04/09/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Diet influences the pathogenesis and clinical course of inflammatory bowel disease (IBD). The Mediterranean diet (MD) is linked to reductions in inflammatory biomarkers and alterations in microbial taxa and metabolites associated with health. We aimed to identify features of the gut microbiome that mediate the relationship between the MD and fecal calprotectin (FCP) in ulcerative colitis (UC). Weighted gene co-expression network analysis (WGCNA) was used to identify modules of co-abundant microbial taxa and metabolites correlated with the MD and FCP. The features considered were gut microbial taxa, serum metabolites, dietary components, short-chain fatty acid and bile acid profiles in participants that experienced an increase (n = 13) or decrease in FCP (n = 16) over eight weeks. WGCNA revealed ten modules containing sixteen key features that acted as key mediators between the MD and FCP. Three taxa (Faecalibacterium prausnitzii, Dorea longicatena, Roseburia inulinivorans) and a cluster of four metabolites (benzyl alcohol, 3-hydroxyphenylacetate, 3-4-hydroxyphenylacetate and phenylacetate) demonstrated a strong mediating effect (ACME: -1.23, p = 0.004). This study identified a novel association between diet, inflammation and the gut microbiome, providing new insights into the underlying mechanisms of how a MD may influence IBD. See clinicaltrials.gov (NCT04474561).
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Affiliation(s)
- Jaclyn C Strauss
- Department of Medicine, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Natasha Haskey
- Department of Biology, Irving K Barber Faculty of Science, University of British Columbia-Okanagan, 3137 University Way, Kelowna, BC V1V 1V7, Canada
| | - Hena R Ramay
- International Microbiome Centre, HRIC 4AA08 Foothills Campus, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Tarini Shankar Ghosh
- APC Microbiome Ireland, College of Medicine and Health, University College Cork, College Road, National University of Ireland, T12 K8AF Cork, Ireland
| | - Lorian M Taylor
- Department of Medicine, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Munazza Yousuf
- Department of Medicine, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Christina Ohland
- International Microbiome Centre, HRIC 4AA08 Foothills Campus, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Kathy D McCoy
- International Microbiome Centre, HRIC 4AA08 Foothills Campus, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Richard J M Ingram
- Department of Medicine, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Subrata Ghosh
- APC Microbiome Ireland, College of Medicine and Health, University College Cork, College Road, National University of Ireland, T12 K8AF Cork, Ireland
| | - Remo Panaccione
- Department of Medicine, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Maitreyi Raman
- Department of Medicine, Cumming School of Medicine, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
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11
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Wang Y, Uffelman CN, Bergia RE, Clark CM, Reed JB, Cross TWL, Lindemann SR, Tang M, Campbell WW. Meat Consumption and Gut Microbiota: a Scoping Review of Literature and Systematic Review of Randomized Controlled Trials in Adults. Adv Nutr 2023; 14:215-237. [PMID: 36822879 PMCID: PMC10229385 DOI: 10.1016/j.advnut.2022.10.005] [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: 02/28/2022] [Revised: 09/27/2022] [Accepted: 10/05/2022] [Indexed: 12/23/2022] Open
Abstract
Emerging research indicates the importance of gut microbiota in mediating the relationship between meat intake and human health outcomes. We aimed to assess the state of available scientific literature on meat intake and gut microbiota in humans (PROSPERO, International Prospective Register of Systematic Reviews, CRD42020135649). We first conducted a scoping review to identify observational and interventional studies on this topic. Searches were performed for English language articles using PubMed, Cochrane Library, Scopus, and CINAHL (Cumulated Index to Nursing and Allied Health Literature) databases from inception to August 2021 and using keywords related to meat (inclusive of mammalian, avian, and aquatic subtypes) and gut microbiota. Of 14,680 records, 85 eligible articles were included in the scoping review, comprising 57 observational and 28 interventional studies. One prospective observational study and 13 randomized controlled trials (RCTs) were identified in adults without diagnosed disease. We included the 13 RCTs, comprising 18 comparisons, in the systematic review to assess the effects of higher and lower intakes of total meat and meat subtypes on the gut microbiota composition. The bacterial composition was differentially affected by consuming diets with and without meat or with varied meat subtypes. For example, higher meat intake tended to decrease population sizes of genera Anerostipes and Faecalibacterium, but it increased the population size of Roseburia across studies. However, the magnitude and directionality of most microbial responses varied, with inconsistent patterns of responses across studies. The data were insufficient for comparison within or between meat subtypes. The paucity of research, especially among meat subtypes, and heterogeneity of findings underscore the need for more well-designed prospective studies and full-feeding RCTs to address the relationships between and effects of consuming total meat and meat subtypes on gut microbiota, respectively.
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Affiliation(s)
- Yu Wang
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Cassi N Uffelman
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Robert E Bergia
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Caroline M Clark
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - Jason B Reed
- Libraries and School of Information Studies, Purdue University, West Lafayette, IN, USA
| | - Tzu-Wen L Cross
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | | | - Minghua Tang
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Wayne W Campbell
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA.
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12
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Ratajczak AE, Festa S, Aratari A, Papi C, Dobrowolska A, Krela-Kaźmierczak I. Should the Mediterranean diet be recommended for inflammatory bowel diseases patients? A narrative review. Front Nutr 2023; 9:1088693. [PMID: 36704787 PMCID: PMC9871561 DOI: 10.3389/fnut.2022.1088693] [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: 11/03/2022] [Accepted: 12/07/2022] [Indexed: 01/12/2023] Open
Abstract
Inflammatory bowel diseases (IBD) are chronic, progressive and relapsing inflammatory disorders of unknown etiology that may cause disability over time. Data from epidemiologic studies indicate that diet may play a role in the risk of developing and the course of IBD. It is known that the group of beneficial bacteria was reduced in the IBD and that the Mediterranean diet (MD)-which is defined as eating habits characterized by high consumption of plant foods, mainly cereals, vegetables, fruit as well as olive oil, and small portions of dairy products, sweets, sugar and meat products-affects gut microbiota, enriching beneficial bacteria, which support gut barrier function and reduce inflammation. Although several studies support different favorable effects of MD on IBD, adherence to MD by IBD patients is generally low, including patients from the Mediterranean Basin. Patients avoid many products which are elements of MD because there cause gastrointestinal symptoms. Patients should be encouraged to have a healthy and well-balanced diet according to individual tolerance of products. A good option seems to be good modified MD, changing hard-to-digest products to easy digest.
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Affiliation(s)
- Alicja Ewa Ratajczak
- Department of Gastroenterology, Dietetics and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland,Doctoral School, Poznan University of Medical Sciences, Poznan, Poland,*Correspondence: Alicja Ewa Ratajczak ✉
| | - Stefano Festa
- Inflammatory Bowel Disease Unit, Department of Gastroenterology, S. Filippo Neri Hospital, Rome, Italy
| | - Annalisa Aratari
- Inflammatory Bowel Disease Unit, Department of Gastroenterology, S. Filippo Neri Hospital, Rome, Italy
| | - Claudio Papi
- Inflammatory Bowel Disease Unit, Department of Gastroenterology, S. Filippo Neri Hospital, Rome, Italy
| | - Agnieszka Dobrowolska
- Department of Gastroenterology, Dietetics and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - Iwona Krela-Kaźmierczak
- Department of Gastroenterology, Dietetics and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland
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13
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Wang X, Geng S. Diet-gut microbial interactions influence cancer immunotherapy. Front Oncol 2023; 13:1138362. [PMID: 37035188 PMCID: PMC10081683 DOI: 10.3389/fonc.2023.1138362] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/16/2023] [Indexed: 04/11/2023] Open
Abstract
The gut microbiome is involved in the absorption and metabolism of host nutrients and modulates the immune response, affecting the efficacy of immunotherapy for cancer. In patients receiving immunotherapy, appropriate modifications of gut microbiota are thought to improve therapeutic response. Of all the factors that influence the gut microbiota, diet is the most influential and modifiable. Healthy dietary patterns as well as some specific dietary components can help the growth of beneficial microbiota in the gut, thereby protecting against cancers and promoting human health. A growing number of researches have confirmed the positive effects of a diet-gut microbiota approach as an adjuvant therapy for cancer, but controversy remains. Here, we summarize the interactions between diet and gut microbes based on previous studies, and discuss the role of gut microbiota-based dietary strategies in tumor immunotherapy, with the potential mechanisms of actions also intensively discussed.
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Affiliation(s)
- Xue Wang
- Department of Oncology, First People's Hospital of Guangyuan, Guangyuan, China
| | - Shitao Geng
- Department of Emergency, First Naval Hospital of Southern Theater Command, Zhanjiang, China
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14
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The Mediterranean Diet in Paediatric Gastrointestinal Disorders. Nutrients 2022; 15:nu15010079. [PMID: 36615737 PMCID: PMC9823641 DOI: 10.3390/nu15010079] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
The Mediterranean diet is considered one of the healthiest dietary patterns worldwide, thanks to a combination of foods rich mainly in antioxidants and anti-inflammatory nutrients. Many studies have demonstrated a strong relationship between the Mediterranean diet and some chronic gastrointestinal diseases. The aim of this narrative review was to analyse the role of the Mediterranean diet in several gastrointestinal diseases, so as to give a useful overview on its effectiveness in the prevention and management of these disorders.
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15
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Brown G, Hoedt EC, Keely S, Shah A, Walker MM, Holtmann G, Talley NJ. Role of the duodenal microbiota in functional dyspepsia. Neurogastroenterol Motil 2022; 34:e14372. [PMID: 35403776 PMCID: PMC9786680 DOI: 10.1111/nmo.14372] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/04/2022] [Accepted: 03/14/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Functional dyspepsia (FD) is a common and debilitating gastrointestinal disorder attributed to altered gut-brain interactions. While the etiology of FD remains unknown, emerging research suggests the mechanisms are likely multifactorial and heterogenous among patient subgroups. Small bowel motor disturbances, visceral hypersensitivity, chronic microinflammation, and increased intestinal tract permeability have all been linked to the pathogenesis of FD. Recently, alterations to the gut microbiome have also been implicated to play an important role in the disease. Changes to the duodenal microbiota may either trigger or be a consequence of immune and neuronal disturbances observed in the disease, but the mechanisms of influence of small intestinal flora on gastrointestinal function and symptomatology are unknown. PURPOSE This review summarizes and synthesizes the literature on the link between the microbiota, low-grade inflammatory changes in the duodenum and FD. This review is not intended to provide a complete overview of FD or the small intestinal microbiota, but instead outline some of the key conceptual advances in understanding the interactions between altered gastrointestinal bacterial communities; dietary factors; host immune activation; and stimulation of the gut-brain axes in patients with FD versus controls. Current and emerging treatment approaches such as dietary interventions and antibiotic or probiotic use that have demonstrated symptom benefits for patients are reviewed, and their role in modulating the host-microbiota is discussed. Finally, suggested opportunities for diagnostic and therapeutic improvements for patients with this condition are presented.
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Affiliation(s)
- Georgia Brown
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia
| | - Emily C. Hoedt
- AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,School of Biomedical Sciences and PharmacyUniversity of NewcastleNewcastleNew South WalesAustralia,Hunter Medical Research InstituteNew Lambton HeightsNewcastleNew South WalesAustralia
| | - Simon Keely
- AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,School of Biomedical Sciences and PharmacyUniversity of NewcastleNewcastleNew South WalesAustralia,Hunter Medical Research InstituteNew Lambton HeightsNewcastleNew South WalesAustralia
| | - Ayesha Shah
- AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,Faculty of Medicine and Faculty of Health and Behavioural SciencesThe University of QueenslandSt. LuciaQueenslandAustralia
| | - Marjorie M. Walker
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia
| | - Gerald Holtmann
- AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,Faculty of Medicine and Faculty of Health and Behavioural SciencesThe University of QueenslandSt. LuciaQueenslandAustralia,Department of Gastroenterology & HepatologyPrincess Alexandra HospitalWoolloongabbaQueenslandAustralia
| | - Nicholas J. Talley
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,AGIRA (Australian Gastrointestinal Research Alliance)NewcastleNew South WalesAustralia,NHMRC Centre of Research Excellence in Digestive HealthNewcastleNew South WalesAustralia,Hunter Medical Research InstituteNew Lambton HeightsNewcastleNew South WalesAustralia
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16
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Zhang F, Fan D, Huang JL, Zuo T. The gut microbiome: linking dietary fiber to inflammatory diseases. MEDICINE IN MICROECOLOGY 2022. [DOI: 10.1016/j.medmic.2022.100070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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17
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Tao Y, Zhou E, Li F, Meng L, Li Q, Wu L. Allergenicity Alleviation of Bee Pollen by Enzymatic Hydrolysis: Regulation in Mice Allergic Mediators, Metabolism, and Gut Microbiota. Foods 2022; 11:foods11213454. [PMID: 36360070 PMCID: PMC9658975 DOI: 10.3390/foods11213454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Bee pollen as a nutrient-rich functional food has been considered for use as an adjuvant for chronic disease therapy. However, bee pollen can trigger food-borne allergies, causing a great concern to food safety. Our previous study demonstrated that the combined use of cellulase, pectinase and papain can hydrolyze allergens into peptides and amino acids, resulting in reduced allergenicity of bee pollen based on in vitro assays. Herein, we aimed to further explore the mechanisms behind allergenicity alleviation of enzyme-treated bee pollen through a BALB/c mouse model. Results showed that the enzyme-treated bee pollen could mitigate mice scratching frequency, ameliorate histopathological injury, decrease serum IgE level, and regulate bioamine production. Moreover, enzyme-treated bee pollen can modulate metabolic pathways and gut microbiota composition in mice, further supporting the alleviatory allergenicity of enzyme-treated bee pollen. The findings could provide a foundation for further development and utilization of hypoallergenic bee pollen products.
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Affiliation(s)
- Yuxiao Tao
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100093, China
| | - Enning Zhou
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100093, China
| | - Fukai Li
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
| | - Lifeng Meng
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100093, China
| | - Qiangqiang Li
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100093, China
- Correspondence: ; Tel.: +86-132-6949-5300
| | - Liming Wu
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100093, China
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18
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Inflammatory Bowel Disease and Customized Nutritional Intervention Focusing on Gut Microbiome Balance. Nutrients 2022; 14:nu14194117. [PMID: 36235770 PMCID: PMC9572914 DOI: 10.3390/nu14194117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/24/2022] [Accepted: 09/30/2022] [Indexed: 11/05/2022] Open
Abstract
Inflammatory bowel disease (IBD) represents a chronic relapsing–remitting condition affecting the gastrointestinal system. The specific triggering IBD elements remain unknown: genetic variability, environmental factors, and alterations in the host immune system seem to be involved. An unbalanced diet and subsequent gut dysbiosis are risk factors, too. This review focuses on the description of the impact of pro- and anti-inflammatory food components on IBD, the role of different selected regimes (such as Crohn’s Disease Exclusion Diet, Immunoglobulin Exclusion Diet, Specific Carbohydrate Diet, LOFFLEX Diet, Low FODMAPs Diet, Mediterranean Diet) in the IBD management, and their effects on the gut microbiota (GM) composition and balance. The purpose is to investigate the potential positive action on IBD inflammation, which is associated with the exclusion or addition of certain foods or nutrients, to more consciously customize the nutritional intervention, taking also into account GM fluctuations during both disease flare-up and remission.
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19
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Diets for inflammatory bowel disease: What do we know so far? Eur J Clin Nutr 2022; 76:1222-1233. [PMID: 35064219 DOI: 10.1038/s41430-021-01051-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 11/11/2021] [Accepted: 11/17/2021] [Indexed: 02/06/2023]
Abstract
In recent years, the role of diet in the pathogenesis of inflammatory bowel disease (IBD) has gained great interest within the scientific community. Eating habits from industrialised countries (the so-called western diet or WD) have been associated with a higher incidence of IBD in observational studies, although the dietary factors responsible for the development of the disease are still to be elucidated. Some components of the diet with proinflammatory potential may cause changes in immunity and intestinal microbiota, leading to the inflammatory reaction that causes IBD-related lesions. The quality of available evidence is low, due to methodological issues, such as the lack of intervention studies, small sample size and heterogeneity of studies. For this reason, scientific societies have offered their recommendations using clinical practice guidelines and consensus documents, in order to establish a common criterion in the nutritional treatment of patients with IBD. The objective of this review was to summarise the data published regarding diet in IBD and review the recommendations given by scientific societies.
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20
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The Role of the Human Gut Microbiome in Inflammatory Bowel Disease and Radiation Enteropathy. Microorganisms 2022; 10:microorganisms10081613. [PMID: 36014031 PMCID: PMC9415405 DOI: 10.3390/microorganisms10081613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 12/04/2022] Open
Abstract
The human gut microbiome plays a key role in regulating host physiology. In a stable state, both the microbiota and the gut work synergistically. The overall homeostasis of the intestinal flora can be affected by multiple factors, including disease states and the treatments given for those diseases. In this review, we examine the relatively well-characterised abnormalities that develop in the microbiome in idiopathic inflammatory bowel disease, and compare and contrast them to those that are found in radiation enteropathy. We discuss how these changes may exert their effects at a molecular level, and the possible role of manipulating the microbiome through the use of a variety of therapies to reduce the severity of the underlying condition.
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21
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Crohn’s Disease, Host–Microbiota Interactions, and Immunonutrition: Dietary Strategies Targeting Gut Microbiome as Novel Therapeutic Approaches. Int J Mol Sci 2022; 23:ijms23158361. [PMID: 35955491 PMCID: PMC9369148 DOI: 10.3390/ijms23158361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
Crohn’s disease (CD) is a complex, disabling, idiopathic, progressive, and destructive disorder with an unknown etiology. The pathogenesis of CD is multifactorial and involves the interplay between host genetics, and environmental factors, resulting in an aberrant immune response leading to intestinal inflammation. Due to the high morbidity and long-term management of CD, the development of non-pharmacological approaches to mitigate the severity of CD has recently attracted great attention. The gut microbiota has been recognized as an important player in the development of CD, and general alterations in the gut microbiome have been established in these patients. Thus, the gut microbiome has emerged as a pre-eminent target for potential new treatments in CD. Epidemiological and interventional studies have demonstrated that diet could impact the gut microbiome in terms of composition and functionality. However, how specific dietary strategies could modulate the gut microbiota composition and how this would impact host–microbe interactions in CD are still unclear. In this review, we discuss the most recent knowledge on host–microbe interactions and their involvement in CD pathogenesis and severity, and we highlight the most up-to-date information on gut microbiota modulation through nutritional strategies, focusing on the role of the microbiota in gut inflammation and immunity.
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22
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Jaber M, Altamimi M, Altamimi A, Cavaliere S, De Filippis F. Mediterranean diet diminishes the effects of Crohn's disease and improves its parameters: A systematic review. Nutr Health 2022:2601060221102281. [PMID: 35611526 DOI: 10.1177/02601060221102281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The pathogenesis and clinical course of Crohn's disease (CD) is influenced by diet. Mediterranean Diet (MD) helps Crohn's patients through many mechanisms. AIMS This study aimed to evaluate the effect of the MD on CD patients and to evaluate such effect on body parameters. METHODS PubMed, Science Direct, Web of Science, MEDLINE and Cochrane central library were searched for MD and CD from 2010 to 2020. Included studies met the following criteria: (1) male and female adults (18-75 years) with a confirmed diagnosis of CD; (2) MD as an intervention; (3) original interventional Trial, Cross-Sectional Analysis, or Prospective Cohort Studies. RESULTS Five studies were included, involving 83,564 participants. A small number of patients with CD fulfilled the P-MDS criteria, the overall scores were low, 4.7 and 4.5 for females and males respectively. Patients with an inactive disease whose adherence to MD was greater, the MD score was negatively correlated with disease activity (p <0.001) and positively with IBDQ (p = 0.008). Twenty-seven percent had a prevalence of impaired adherence to a MD (mMED score = 0-2), giving such a population a risk attributed to 12% for the later CD. Seventy-point reduction in CDAI + decreased fecal CRP / calprotectin, calprotectin <250 mcg/gm or >50% decrease from baseline and hsCRP < 5 mg/L or >50% from baseline. CONCLUSIONS MD showed anti-inflammatory properties. Adherence to MD was associated with improvement in CD patients and negatively correlated with the disease activity, in addition to a lower risk of developing CD later in life.
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Affiliation(s)
- Mawada Jaber
- Department of Nutrition and food technology, An-Najah National University, Nablus, Palestine
| | - Mohammad Altamimi
- Department of Nutrition and food technology, An-Najah National University, Nablus, Palestine
| | - Almothana Altamimi
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Sara Cavaliere
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
| | - Francesca De Filippis
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
- Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
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23
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Olendzki B, Bucci V, Cawley C, Maserati R, McManus M, Olednzki E, Madziar C, Chiang D, Ward DV, Pellish R, Foley C, Bhattarai S, McCormick BA, Maldonado-Contreras A. Dietary manipulation of the gut microbiome in inflammatory bowel disease patients: Pilot study. Gut Microbes 2022; 14:2046244. [PMID: 35311458 PMCID: PMC8942410 DOI: 10.1080/19490976.2022.2046244] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Diet is a modifiable, noninvasive, inexpensive behavior that is crucial in shaping the intestinal microbiome. A microbiome "imbalance" or dysbiosis in inflammatory bowel disease (IBD) is linked to inflammation. Here, we aim to define the impact of specific foods on bacterial species commonly depleted in patients with IBD to better inform dietary treatment. We performed a single-arm, pre-post intervention trial. After a baseline period, a dietary intervention with the IBD-Anti-Inflammatory Diet (IBD-AID) was initiated. We collected stool and blood samples and assessed dietary intake throughout the study. We applied advanced computational approaches to define and model complex interactions between the foods reported and the microbiome. A dense dataset comprising 553 dietary records and 340 stool samples was obtained from 22 participants. Consumption of prebiotics, probiotics, and beneficial foods correlated with increased abundance of Clostridia and Bacteroides, commonly depleted in IBD cohorts. We further show that specific foods categorized as prebiotics or adverse foods are correlated to levels of cytokines in serum (i.e., GM-CSF, IL-6, IL-8, TNF-alpha) that play a central role in IBD pathogenesis. By using robust predictive analytics, this study represents the first steps to detangle diet-microbiome and diet-immune interactions to inform personalized nutrition for patients suffering from dysbiosis-related IBD.
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Affiliation(s)
- Barbara Olendzki
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Vanni Bucci
- Department of Microbiology and Physiological Systems and Program of Microbiome Dynamics. University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Caitlin Cawley
- Department of Microbiology and Physiological Systems and Program of Microbiome Dynamics. University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Rene Maserati
- Department of Microbiology and Physiological Systems and Program of Microbiome Dynamics. University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Margaret McManus
- Center for Clinical and Translational Science, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Effie Olednzki
- Center for Applied Nutrition, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Camilla Madziar
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - David Chiang
- Department of Medicine,University of Massachusetts Medical SchoolWorcester, Massachusetts, USA
| | - Doyle V. Ward
- Department of Microbiology and Physiological Systems and Program of Microbiome Dynamics. University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Randall Pellish
- UMass Memorial Medical Center University Campus, Department of Gastroenterology
| | - Christine Foley
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Shakti Bhattarai
- Department of Microbiology and Physiological Systems and Program of Microbiome Dynamics. University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Beth A. McCormick
- Department of Microbiology and Physiological Systems and Program of Microbiome Dynamics. University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Ana Maldonado-Contreras
- Department of Microbiology and Physiological Systems and Program of Microbiome Dynamics. University of Massachusetts Medical School, Worcester, Massachusetts, USA,CONTACT Ana Maldonado-Contreras Department of Microbiology and Physiological Systems and Program of Microbiome Dynamics, 368 Plantation Street, Albert Sherman Center, Office AS.81045, Worcester, Massachusetts, 01605, Worcester, Massachusetts, USA
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24
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Abd El-Wahab EW, Youssef EI, Hassouna E. Helicobacter pylori infection in patients with inflammatory bowel diseases: a single-centre, prospective, observational study in Egypt. BMJ Open 2022; 12:e057214. [PMID: 35504642 PMCID: PMC9066476 DOI: 10.1136/bmjopen-2021-057214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE Conflicting results have been reported by numerous epidemiological studies investigating the association between Helicobacter pylori (H. pylori) infection and inflammatory bowel disease (IBD). We aimed in this study to assess the possible association between H. pylori infection and IBD and its effects on disease progression. DESIGN Prospective observational study. SETTING Specialised IBD care clinics at Alexandria University Student Hospital in northern Egypt, between March and June 2019. PARTICIPANTS 182 patients with IBD. ANALYSIS AND OUTCOME MEASURES Participants with IBD were screened for H. pylori infection and clinically evaluated at the initial visit and bimonthly for 3 months to record any potential improvement/flare of the IBD condition. RESULTS Overall, 90 (49.5%) patients with IBD had evidence of H. pylori infection. The course of IBD did not significantly differ in association with H. pylori infection or IBD treatment strategy. Cox regression analysis revealed that patients aged 20-35 years (HR=6.20 (95% CI: 1.74 to 22.12)) and 35-55 years (557.9 (17.4-17 922.8)), high socioeconomic status (2.9 (1.11-7.8)), daily consumption of fibre-rich food (5.1 (1.32-19.5)), occasional consumption of snacks between meals (2.8 (2.5-70.5)) and eating four meals per day (13.3 (1.0-7.7)) were predictive of IBD flare. By contrast, eating fruits and vegetables showed a strongly protective association (HR=0.001 (95% CI: 0.0002 to 0.02)). The probabilities of improvement of IBD symptoms after 12 weeks of follow-up were comparable in assessments based on H. pylori infection status (0.793 for H. pylori negative vs 0.778 for H. pylori positive) and IBD treatment option (0.811 for conventional therapy vs 0.750 for biological therapy). CONCLUSION The association between IBD and H. pylori infection is unresolved and should be further investigated in the context of specific environmental exposures that can influence the development or relapse of IBD.
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Affiliation(s)
- Ekram W Abd El-Wahab
- Tropical Health Department, High Institute of Public Health, Alexandria University, 21561 Alexandria, Egypt
| | - Ebtessam I Youssef
- Tropical Health Department, High Institute of Public Health, Alexandria University, 21561 Alexandria, Egypt
| | - Ehab Hassouna
- Internal Medicine Department, Faculty of Medicine, Alexandria University, 21568 Alexandria, Egypt
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Chronic Experimental Model of TNBS-Induced Colitis to Study Inflammatory Bowel Disease. Int J Mol Sci 2022; 23:ijms23094739. [PMID: 35563130 PMCID: PMC9105049 DOI: 10.3390/ijms23094739] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/21/2022] [Accepted: 04/24/2022] [Indexed: 01/14/2023] Open
Abstract
Background: Inflammatory bowel disease (IBD) is a world healthcare problem. In order to evaluate the effect of new pharmacological approaches for IBD, we aim to develop and validate chronic trinitrobenzene sulfonic acid (TNBS)-induced colitis in mice. Methods: Experimental colitis was induced by the rectal administration of multiple doses of TNBS in female CD-1 mice. The protocol was performed with six experimental groups, depending on the TNBS administration frequency, and two control groups (sham and ethanol groups). Results: The survival rate was 73.3% in the first three weeks and, from week 4 until the end of the experimental protocol, the mice’s survival remained unaltered at 70.9%. Fecal hemoglobin presented a progressive increase until week 4 (5.8 ± 0.3 µmol Hg/g feces, p < 0.0001) compared with the ethanol group, with no statistical differences to week 6. The highest level of tumor necrosis factor-α was observed on week 3; however, after week 4, a slight decrease in tumor necrosis factor-α concentration was verified, and the level was maintained until week 6 (71.3 ± 3.3 pg/mL and 72.7 ± 3.6 pg/mL, respectively). Conclusions: These findings allowed the verification of a stable pattern of clinical and inflammation signs after week 4, suggesting that the chronic model of TNBS-induced colitis develops in 4 weeks.
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Nutrigenomics and Nutrigenetics Research in New Zealand, and Its Relevance and Application to Gastrointestinal Health. Nutrients 2022; 14:nu14091743. [PMID: 35565709 PMCID: PMC9103310 DOI: 10.3390/nu14091743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/29/2022] [Accepted: 04/18/2022] [Indexed: 11/30/2022] Open
Abstract
Nutrigenomics New Zealand (NuNZ) was a collaborative research programme built among three organisations—the University of Auckland, AgResearch Limited and Plant & Food Research. The programme ran for ten years, between 2004 and 2014, and was tasked with developing the then emerging field of nutrigenomics, investigating its applications to New Zealand, and potential benefits to the plant food and agricultural sectors. Since the beginning of the programme, nutrigenomics was divided into two fields—nutrigenetics and nutrigenomics. The first of these is now more commonly called personalised nutrition, and has recently been recognised and criticised by elements of the dietetics and management sector in New Zealand, who currently do not appear to fully appreciate the evolving nature of the field, and the differing validity of various companies offering the tests that form the basis of this personalisation. Various science laboratories are utilising “omics” sciences, including transcriptomics, metabolomics, proteomics and the comprehensive analysis of microbial communities such as the gut microbiota, in order to understand the mechanisms by which certain food products and/or diets relevant to New Zealand, confer a health benefit, and the nature of potential health claims that may be made on the basis of this information. In this article, we give a brief overview of the nutrigenomics landscape in New Zealand since the end of the NuNZ programme, with a particular focus on gastrointestinal health.
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Simões CD, Maganinho M, Sousa AS. FODMAPs, inflammatory bowel disease and gut microbiota: updated overview on the current evidence. Eur J Nutr 2022; 61:1187-1198. [PMID: 34988652 DOI: 10.1007/s00394-021-02755-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/25/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE Based on the fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) hypothesis, the low-FODMAP diet has been suggested as a potential therapeutic approach for inflammatory bowel disease (IBD) with promising results on disease management. However, this diet implies a specific broad food restriction, which potentially increases the risk of nutritional deficiencies and may aggravate gut microbiota dysbiosis of IBD patients. The aim of the present study is to review the effect of individual FODMAPs on the human gut microbiota. In addition, this narrative review provides an updated overview of the use of the low-FODMAP diet in IBD, namely the implementation, advantages, limitations, and the impact on the gut microbiota. METHODS The literature search strategy was applied to PubMed and Web of Science using relevant keywords, IBD, FODMAPs, Fructose, Lactose, Polyols, FOS, GOS, low-FODMAP diet and gut microbiota. RESULTS Current data suggest that the low-FODMAP diet may effectively improve clinical outcomes in the management of IBD and ensure better quality of life for IBD patients. However, there is evidence highlighting some issues of concern, particularly the adequacy of the diet and the impact on the gut microbiota. The various FODMAP types differently modulate the gut microbiota. CONCLUSION IBD management should be achieved with the least possible dietary restriction to avoid detrimental consequences, particularly on nutritional adequacy and gut microbiota. Thus, it is important to individualize and monitor the nutrition intervention. Further studies are required to better characterize the relationship between diet, the gut microbiota, and IBD to support the generalization of this approach for clinical practice in IBD therapy and management.
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Affiliation(s)
- Catarina D Simões
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
- CIBIO-InBIO Research Centre in Biodiversity and Genetic Resources, University of Porto, Vairão, Portugal
| | - Marta Maganinho
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
| | - Ana S Sousa
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal.
- Center for Innovative Care and Health Technology (ciTechcare), Polytechnic of Leiria, Leiria, Portugal.
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He P, Yu L, Tian F, Zhang H, Chen W, Zhai Q. Dietary Patterns and Gut Microbiota: The Crucial Actors in Inflammatory Bowel Disease. Adv Nutr 2022; 13:1628-1651. [PMID: 35348593 PMCID: PMC9526834 DOI: 10.1093/advances/nmac029] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/25/2022] [Accepted: 03/22/2022] [Indexed: 02/06/2023] Open
Abstract
It is widely believed that diet and the gut microbiota are strongly related to the occurrence and progression of inflammatory bowel disease (IBD), but the effects of the interaction between dietary patterns and the gut microbiota on IBD have not been well elucidated. In this article, we aim to explore the complex relation between dietary patterns, gut microbiota, and IBD. We first comprehensively summarized the dietary patterns associated with IBD and found that dietary patterns can modulate the occurrence and progression of IBD through various signaling pathways, including mammalian target of rapamycin (mTOR), mitogen-activated protein kinases (MAPKs), signal transducer and activator of transcription 3 (STAT3), and NF-κB. Besides, the gut microbiota performs a vital role in the progression of IBD, which can affect the expression of IBD susceptibility genes, such as dual oxidase 2 (DUOX2) and APOA-1 , the intestinal barrier (in particular, the expression of tight junction proteins), immune function (especially the homeostasis between effector and regulatory T cells) and the physiological metabolism, in particular, SCFAs, bile acids (BAs), and tryptophan metabolism. Finally, we reviewed the current knowledge on the interaction between dietary patterns and the gut microbiota in IBD and found that dietary patterns modulate the onset and progression of IBD, which is partly attributed to the regulation of the gut microbiota (especially SCFAs-producing bacteria and Escherichia coli). Faecalibacteria as "microbiomarkers" of IBD could be used as a target for dietary interventions to alleviate IBD. A comprehensive understanding of the interplay between dietary intake, gut microbiota, and IBD will facilitate the development of personalized dietary strategies based on the regulation of the gut microbiota in IBD and expedite the era of precision nutritional interventions for IBD.
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Affiliation(s)
- Pandi He
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China,Wuxi Translational Medicine Research Center, Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, Jiangsu, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China
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Nutrition in Patients with Inflammatory Bowel Diseases: A Narrative Review. Nutrients 2022; 14:nu14040751. [PMID: 35215401 PMCID: PMC8879392 DOI: 10.3390/nu14040751] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/28/2022] [Accepted: 02/08/2022] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel diseases (IBD) affect the gastrointestinal tract: they include Crohn’s disease (CD) and ulcerative colitis (UC). Each has a different phenotypic spectrum, characterized by gastrointestinal and extra-intestinal manifestations. People living with IBD are very interested in diet, but little is known about the impact of diet on these patients; no guidelines are available yet. In this review, we analyze the dietary patterns of patients with IBD and the approach to the choices of foods both in adults and pediatric patients. Very often, IBD patients report an intentional avoidance of gluten to manage the disease; furthermore, a proportion of IBD patients believe that dairy products worsen their symptoms and that avoidance may help the disease. They have a low compliance with the Mediterranean Diet, which is considered to have potential benefits but is little used in practice. In conclusion, the review underscores the pivotal role of nutritional counselling in IBD patients, and the importance of future clinical studies to evaluate the beneficial effects of dietary recommendations in the management of IBD.
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Ceballos D, Hernández-Camba A, Ramos L. Diet and microbiome in the beginning of the sequence of gut inflammation. World J Clin Cases 2021; 9:11122-11147. [PMID: 35071544 PMCID: PMC8717522 DOI: 10.12998/wjcc.v9.i36.11122] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 08/26/2021] [Accepted: 11/18/2021] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory condition of the gastrointestinal tract due, at least partially, to an aberrant and excessive mucosal immune response to gut bacteria in genetically-predisposed individuals under certain environmental factors. The incidence of IBD is rising in western and newly industrialized countries, paralleling the increase of westernized dietary patterns, through new antigens, epithelial function and permeability, epigenetic mechanisms (e.g., DNA methylation), and alteration of the gut microbiome. Alteration in the composition and functionality of the gut microbiome (including bacteria, viruses and fungi) seems to be a nuclear pathogenic factor. The microbiome itself is dynamic, and the changes in food quality, dietary habits, living conditions and hygiene of these western societies, could interact in a complex manner as modulators of dysbiosis, thereby influencing the activation of immune cells' promoting inflammation. The microbiome produces diverse small molecules via several metabolic ways, with the fiber-derived short-chain fatty acids (i.e., butyrate) as main elements and having anti-inflammatory effects. These metabolites and some micronutrients of the diet (i.e., vitamins, folic acid, beta carotene and trace elements) are regulators of innate and adaptive intestinal immune homeostasis. An excessive and unhealthy consumption of sugar, animal fat and a low-vegetable and -fiber diet are risk factors for IBD appearance. Furthermore, metabolism of nutrients in intestinal epithelium and in gut microbiota is altered by inflammation, changing the demand for nutrients needed for homeostasis. This role of food and a reduced gut microbial diversity in causing IBD might also have a prophylactic or therapeutic role for IBD. The relationship between dietary intake, symptoms, and bowel inflammation could lead to dietary and lifestyle recommendations, including diets with abundant fruits, vegetables, olive oil and oily fish, which have anti-inflammatory effects and could prevent dysbiosis and IBD. Dietary modulation and appropriate exclusion diets might be a new complementary management for treatment at disease flares and in refractory patients, even reducing complications, hospitalizations and surgery, through modifying the luminal intestinal environment.
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Affiliation(s)
- Daniel Ceballos
- Department of Gastroenterology, Hospital Universitario de Gran Canaria Doctor Negrin, Las Palmas 35019, Canarias, Spain
| | - A Hernández-Camba
- Department of Gastroenterology, Hospital Universitario Nuestra Señora de La Candelaria, Santa Cruz de Tenerife 38010, Canarias, Spain
| | - Laura Ramos
- Department of Gastroenterology, Hospital Universitario de Canarias, San Cristóbal de La Laguna 38320, Canarias, Spain
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Hart L, Verburgt CM, Wine E, Zachos M, Poppen A, Chavannes M, Van Limbergen J, Pai N. Nutritional Therapies and Their Influence on the Intestinal Microbiome in Pediatric Inflammatory Bowel Disease. Nutrients 2021; 14:nu14010004. [PMID: 35010879 PMCID: PMC8746384 DOI: 10.3390/nu14010004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 12/16/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic, autoimmune disorder of the gastrointestinal tract with numerous genetic and environmental risk factors. Patients with Crohn’s disease (CD) or ulcerative colitis (UC) often demonstrate marked disruptions of their gut microbiome. The intestinal microbiota is strongly influenced by diet. The association between the increasing incidence of IBD worldwide and increased consumption of a westernized diet suggests host nutrition may influence the progression or treatment of IBD via the microbiome. Several nutritional therapies have been studied for the treatment of CD and UC. While their mechanisms of action are only partially understood, existing studies do suggest that diet-driven changes in microbial composition and function underlie the diverse mechanisms of nutritional therapy. Despite existing therapies for IBD focusing heavily on immune suppression, nutrition is an important treatment option due to its superior safety profile, potentially low cost, and benefits for growth and development. These benefits are increasingly important to patients. In this review, we will describe the clinical efficacy of the different nutritional therapies that have been described for the treatment of CD and UC. We will also describe the effects of each nutritional therapy on the gut microbiome and summarize the strength of the literature with recommendations for the practicing clinician.
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Affiliation(s)
- Lara Hart
- Department of Paediatrics, Division of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON L8N 3Z5, Canada; (L.H.); (M.Z.)
- McMaster Children’s Hospital, Hamilton, ON L8N 3Z5, Canada
| | - Charlotte M. Verburgt
- Department of Pediatric Gastroenterology and Nutrition, Amsterdam University Medical Centers, Emma Children’s Hospital, 1105 AZ Amsterdam, The Netherlands; (C.M.V.); (J.V.L.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology Endocrinology and Metabolism, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Amsterdam Reproduction & Development Research Institute, Amsterdam University Medical Centers, Emma Children’s Hospital, 1105 AZ Amsterdam, The Netherlands
| | - Eytan Wine
- Edmonton Paediatric IBD Clinic, Division of Paediatric Gastroenterology and Nutrition, Departments of Paediatrics & Physiology, University of Alberta, Edmonton, AB T6G 2R3, Canada;
| | - Mary Zachos
- Department of Paediatrics, Division of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON L8N 3Z5, Canada; (L.H.); (M.Z.)
- McMaster Children’s Hospital, Hamilton, ON L8N 3Z5, Canada
| | - Alisha Poppen
- College of Medicine and Health, University College Cork, T12 K8AF Cork, Ireland;
| | - Mallory Chavannes
- Department of Paediatrics, Division of Paediatric Gastroenterology and Nutrition, Children’s Hospital of Los Angeles, Los Angeles, CA 90027, USA;
| | - Johan Van Limbergen
- Department of Pediatric Gastroenterology and Nutrition, Amsterdam University Medical Centers, Emma Children’s Hospital, 1105 AZ Amsterdam, The Netherlands; (C.M.V.); (J.V.L.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology Endocrinology and Metabolism, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Department of Paediatrics, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Nikhil Pai
- Department of Paediatrics, Division of Paediatric Gastroenterology & Nutrition, McMaster University, Hamilton, ON L8N 3Z5, Canada; (L.H.); (M.Z.)
- McMaster Children’s Hospital, Hamilton, ON L8N 3Z5, Canada
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON L8N 3Z5, Canada
- Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, ON L8N 3Z5, Canada
- Correspondence: ; Tel.: +905-521-2100 (ext. 73587); Fax: +905-521-2655
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The Role of Carrageenan in Inflammatory Bowel Diseases and Allergic Reactions: Where Do We Stand? Nutrients 2021; 13:nu13103402. [PMID: 34684400 PMCID: PMC8539934 DOI: 10.3390/nu13103402] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 12/17/2022] Open
Abstract
Carrageenan (CGN) is a high molecular weight polysaccharide extracted from red seaweeds, composed of D-galactose residues linked in β-1,4 and α-1,3 galactose-galactose bond, widely used as a food additive in processed foods for its properties as a thickener, gelling agent, emulsifier, and stabilizer. In recent years, with the spread of the Western diet (WD), its consumption has increased. Nonetheless, there is a debate on its safety. CGN is extensively used as an inflammatory and adjuvant agent in vitro and in animal experimental models for the investigation of immune processes or to assess the activity of anti-inflammatory drugs. CGN can activate the innate immune pathways of inflammation, alter the gut microbiota composition and the thickness of the mucus barrier. Clinical evidence suggests that CGN is involved in the pathogenesis and clinical management of inflammatory bowel diseases (IBD), indeed food-exclusion diets can be an effective therapy for disease remission. Moreover, specific IgE to the oligosaccharide α-Gal has been associated with allergic reactions commonly referred to as the "α-Gal syndrome". This review aims to discuss the role of carrageenan in inflammatory bowel diseases and allergic reactions following the current evidence. Furthermore, as no definitive data are available on the safety and the effects of CGN, we suggest gaps to be filled and advise to limit the human exposure to CGN by reducing the consumption of ultra-processed foods.
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Sienkiewicz M, Szymańska P, Maciejewska O, Niewiadomska J, Wiśniewska‐Jarosińska M, Fichna J. Assessment of dietary habits in inflammatory bowel disease patients: A cross‐sectional study from Poland. NUTR BULL 2021. [DOI: 10.1111/nbu.12525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michał Sienkiewicz
- Department of Biochemistry Faculty of Medicine Medical University of Lodz Lodz Poland
| | - Patrycja Szymańska
- Department of Haemostasis and Haemostatic Disorders Faculty of Health Sciences Medical University of Lodz Lodz Poland
| | - Oliwia Maciejewska
- Department of Biochemistry Faculty of Medicine Medical University of Lodz Lodz Poland
| | - Justyna Niewiadomska
- Department of Biochemistry Faculty of Medicine Medical University of Lodz Lodz Poland
| | | | - Jakub Fichna
- Department of Biochemistry Faculty of Medicine Medical University of Lodz Lodz Poland
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Wagenaar CA, van de Put M, Bisschops M, Walrabenstein W, de Jonge CS, Herrema H, van Schaardenburg D. The Effect of Dietary Interventions on Chronic Inflammatory Diseases in Relation to the Microbiome: A Systematic Review. Nutrients 2021; 13:nu13093208. [PMID: 34579085 PMCID: PMC8464906 DOI: 10.3390/nu13093208] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 12/29/2022] Open
Abstract
Chronic inflammation plays a central role in the pathophysiology of various non-communicable diseases. Dietary interventions can reduce inflammation, in part due to their effect on the gut microbiome. This systematic review aims to determine the effect of dietary interventions, specifically fiber intake, on chronic inflammatory diseases and the microbiome. It aims to form hypotheses on the potential mediating effects of the microbiome on disease outcomes after dietary changes. Included were clinical trials which performed a dietary intervention with a whole diet change or fiber supplement (>5 g/day) and investigated the gut microbiome in patients diagnosed with chronic inflammatory diseases such as cardiovascular disease (CVD), type 2 diabetes (T2DM), and autoimmune diseases (e.g., rheumatoid arthritis (RA), inflammatory bowel disease (IBD)). The 30 articles which met the inclusion criteria had an overall moderate to high risk of bias and were too heterogeneous to perform a meta-analysis. Dietary interventions were stratified based on fiber intake: low fiber, high fiber, and supplemental fiber. Overall, but most pronounced in patients with T2DM, high-fiber plant-based dietary interventions were consistently more effective at reducing disease-specific outcomes and pathogenic bacteria, as well as increasing microbiome alpha diversity and short-chain fatty acid (SCFA)-producing bacteria, compared to other diets and fiber supplements.
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Affiliation(s)
- Carlijn A. Wagenaar
- Amsterdam Rheumatology and Immunology Center, Reade, 1056 AB Amsterdam, The Netherlands; (M.v.d.P.); (M.B.); (W.W.); (D.v.S.)
- Amsterdam UMC, Amsterdam Medical Center, 1105 AZ Amsterdam, The Netherlands
- Correspondence:
| | - Marieke van de Put
- Amsterdam Rheumatology and Immunology Center, Reade, 1056 AB Amsterdam, The Netherlands; (M.v.d.P.); (M.B.); (W.W.); (D.v.S.)
| | - Michelle Bisschops
- Amsterdam Rheumatology and Immunology Center, Reade, 1056 AB Amsterdam, The Netherlands; (M.v.d.P.); (M.B.); (W.W.); (D.v.S.)
| | - Wendy Walrabenstein
- Amsterdam Rheumatology and Immunology Center, Reade, 1056 AB Amsterdam, The Netherlands; (M.v.d.P.); (M.B.); (W.W.); (D.v.S.)
- Amsterdam UMC, Amsterdam Medical Center, 1105 AZ Amsterdam, The Netherlands
| | - Catharina S. de Jonge
- Department of Radiology and Nuclear Medicine, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Hilde Herrema
- Department of Experimental Vascular Medicine, Amsterdam University Medical Centers (UMC), Academic Medical Center, 1105 AZ Amsterdam, The Netherlands;
| | - Dirkjan van Schaardenburg
- Amsterdam Rheumatology and Immunology Center, Reade, 1056 AB Amsterdam, The Netherlands; (M.v.d.P.); (M.B.); (W.W.); (D.v.S.)
- Amsterdam UMC, Amsterdam Medical Center, 1105 AZ Amsterdam, The Netherlands
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Wahl D, LaRocca TJ. Transcriptomic Effects of Healthspan-Promoting Dietary Interventions: Current Evidence and Future Directions. Front Nutr 2021; 8:712129. [PMID: 34447778 PMCID: PMC8383293 DOI: 10.3389/fnut.2021.712129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/14/2021] [Indexed: 12/11/2022] Open
Abstract
Aging is the greatest risk factor most diseases, including cardiovascular disorders, cancers, diabetes, and neurodegeneration, but select nutritional interventions may profoundly reduce the risk for these conditions. These interventions include calorie restriction, intermittent fasting, protein restriction, and reducing intake of certain amino acids. Certain ad libitum diets, including the Mediterranean, Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability, and Okinawan diets also promote healthy aging. Evidence indicates that these dietary strategies influence aging and healthspan by acting on the biological "hallmarks of aging" and especially upstream nutrient sensing pathways. Recent advances in "omics" technologies, including RNA-sequencing (transcriptomics), have increased our understanding of how such nutritional interventions may influence gene expression related to these biological mediators of aging, primarily in pre-clinical studies. However, whether these effects are also reflected in the human transcriptome, which may provide insight on other downstream/related cellular processes with aging, is an emerging topic. Broadly, the investigation of how these nutritional interventions influence the transcriptome may provide novel insight into pathways associated with aging, and potential targets to treat age-associated disease and increase healthspan. Therefore, the purpose of this mini review is to summarize what is known about the transcriptomic effects of key dietary/nutritional interventions in both pre-clinical models and humans, address gaps in the literature, and provide insight into future research directions.
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Affiliation(s)
- Devin Wahl
- Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, United States
- Center for Healthy Aging, Colorado State University, Fort Collins, CO, United States
| | - Thomas J. LaRocca
- Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, United States
- Center for Healthy Aging, Colorado State University, Fort Collins, CO, United States
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What Links an Increased Cardiovascular Risk and Inflammatory Bowel Disease? A Narrative Review. Nutrients 2021; 13:nu13082661. [PMID: 34444821 PMCID: PMC8398182 DOI: 10.3390/nu13082661] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/27/2021] [Accepted: 07/27/2021] [Indexed: 02/08/2023] Open
Abstract
Several studies have shown increased rates of cardiovascular disease (CVD) in patients suffering from inflammatory bowel disease (IBD), particularly in cases of early atherosclerosis and myocardial infarction. IBD most frequently begins at an early age, patients usually present normal weight and remain under constant care of a physician, as well as of a nutritionist. Therefore, the classical risk factors of CVD are not reflected in the higher prevalence of CVD in the IBD population. Still, both groups are characterised by chronic inflammation and display similar physiopathological mechanisms. In the course of IBD, increased concentrations of pro-inflammatory cytokines, such as C-reactive protein (CRP) and homocysteine, may lead to endothelial dysfunctions and the development of CVD. Furthermore, gut microbiota dysbiosis in patients with IBD also constitutes a risk factor for an increased susceptibility to cardiovascular disease and atherosclerosis. Additionally, diet is an essential factor affecting both positively and negatively the course of the aforementioned diseases, whereas several dietary patterns may also influence the association between IBD and CVD. Thus, it is essential to investigate the factors responsible for the increased cardiovascular (CV) risk in this group of patients. Our paper attempts to review the role of potential inflammatory and nutritional factors, as well as intestinal dysbiosis and pharmacotherapy, in the increased risk of CVD in IBD patients.
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Belfiore A, Ciniselli CM, Signoroni S, Gariboldi M, Mancini A, Rivoltini L, Morelli D, Masci E, Bruno E, Macciotta A, Ricci MT, Daveri E, Cattaneo L, Gargano G, Apolone G, Milione M, Verderio P, Pasanisi P, Vitellaro M. Preventive Anti-inflammatory Diet to Reduce Gastrointestinal Inflammation in Familial Adenomatous Polyposis Patients: A Prospective Pilot Study. Cancer Prev Res (Phila) 2021; 14:963-972. [PMID: 34253565 DOI: 10.1158/1940-6207.capr-21-0076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/24/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022]
Abstract
Familial adenomatous polyposis (FAP) is an autosomal-dominant hereditary condition associated with germline mutations in the adenomatous polyposis coli gene. Patient management involves prophylactic surgery and intensive life-long endoscopic surveillance. Diet is a major concern for patients with FAP, who are generally free of symptoms before surgery but tend to have issues related to bowel function postoperatively. We hypothesized that a low-inflammatory diet based on the principles and recipes of the Mediterranean diet would reduce markers of local and systemic inflammation. Twenty-eight patients with FAP over 18 years of age who underwent rectum-sparing prophylactic colectomy and were included in our surveillance program participated in a pilot dietary intervention study. Blood and stool samples at baseline (T0), at the end of the dietary intervention (T1, three months), and at the end of the study (T2, six months after T0) were collected. Gastrointestinal inflammation markers including fecal calprotectin, cyclooxygenase-2, and 15-hydroxyprostaglandin dehydrogenase were evaluated. Serum calprotectin, insulin, insulin-like growth factor-1, C-reactive protein, and glycated hemoglobin were also assessed. Significant changes in serum calprotectin, insulin, and insulin-like growth factor-1 levels occurred over time. Borderline significant changes were observed in the neutrophil-lymphocyte ratio. These changes were noticeable immediately at the end of the 3-month active dietary intervention (T1). A significant increase in 15-hydroxyprostaglandin dehydrogenase expression in the normal crypts of matched samples was also observed between T0 and T2. This pilot study supports the hypothesis that a low-inflammatory diet can modulate gastrointestinal markers of inflammation in individuals with FAP. PREVENTION RELEVANCE: Cancer is known to be related to inflammatory conditions. This study suggests that anti-inflammatory dietary intervention may potentially prevent adenomas and cancer in FAP patients by reducing systemic and tissue inflammatory indices.
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Affiliation(s)
- Antonino Belfiore
- First Pathology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Chiara Maura Ciniselli
- Unit of Bioinformatics and Biostatistics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Stefano Signoroni
- Unit of Hereditary Digestive Tract Tumors, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
| | - Manuela Gariboldi
- Unit of Genetic Epidemiology and Pharmacogenomics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Andrea Mancini
- Unit of Diagnostic and Therapeutic Endoscopy, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Licia Rivoltini
- Unit of Immunotherapy of Human Tumors, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Daniele Morelli
- Laboratory Medicine Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Enzo Masci
- Unit of Diagnostic and Therapeutic Endoscopy, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Eleonora Bruno
- Unit of Epidemiology and Prevention, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Alessandra Macciotta
- Unit of Bioinformatics and Biostatistics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Maria Teresa Ricci
- Unit of Hereditary Digestive Tract Tumors, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Elena Daveri
- Unit of Immunotherapy of Human Tumors, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Laura Cattaneo
- First Pathology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giuliana Gargano
- Unit of Epidemiology and Prevention, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giovanni Apolone
- Scientific Directorate, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Massimo Milione
- First Pathology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Paolo Verderio
- Unit of Bioinformatics and Biostatistics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Patrizia Pasanisi
- Unit of Epidemiology and Prevention, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Marco Vitellaro
- Unit of Hereditary Digestive Tract Tumors, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.,Colorectal Surgery Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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Danehower S. Targeting gut dysbiosis as a means to enhance recovery from surgical brain injury. Surg Neurol Int 2021; 12:210. [PMID: 34084637 PMCID: PMC8168676 DOI: 10.25259/sni_72_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/11/2021] [Indexed: 11/04/2022] Open
Abstract
Background Surgical brain injury (SBI) impacts roughly 800,000 people who undergo neurosurgical procedures each year. SBI is the result of unavoidable parenchymal damage, vessel disruption, and thermal injury that is an inherent part of all neurosurgical procedures. Clinically, SBI has been associated with postoperative seizures and long-term neurobehavioral deficits. Current therapies are aimed at providing symptom relief by reducing swelling and preventing seizures. However, there are no therapies aimed at reducing the extent of SBI preoperatively. The microbiome-gut-brain axis may serve as a potential target for the development of new preventative therapies due to its extensive involvement in central nervous system function. Methods An extensive literature review was conducted to determine whether there is a potential role for dysbiosis treatment in reducing the extent of SBI. Results Treatment of gut dysbiosis deserves further exploration as a potential means of reducing the extent of unavoidable SBI. Dysbiosis has been correlated with increased neuroinflammation through impaired immune regulation, increased blood-brain barrier permeability, and increased production of reactive metabolites. Recently, dysbiosis has also been linked to acute neurological dysfunction in the postoperative state. Importantly, treatment of dysbiosis has been correlated with better patient outcomes and decreased length of stay in surgical patients. Conclusion Current literature supports the role of dysbiosis treatment in the preoperative setting as a means of optimizing neurological recovery following unavoidable SBI that results from all neurosurgical procedures.
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Affiliation(s)
- Sarah Danehower
- Drexel University College of Medicine, Philadelphia, Pennsylvania, United States
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Caio G, Lungaro L, Caputo F, Zoli E, Giancola F, Chiarioni G, De Giorgio R, Zoli G. Nutritional Treatment in Crohn's Disease. Nutrients 2021; 13:nu13051628. [PMID: 34066229 PMCID: PMC8151495 DOI: 10.3390/nu13051628] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/04/2021] [Accepted: 05/06/2021] [Indexed: 12/12/2022] Open
Abstract
Crohn's disease (CD) is a chronic inflammatory bowel disease (IBD) which can affect any part of the whole gastrointestinal tract (from mouth to anus). Malnutrition affects 65-75% of CD patients, and it is now well acknowledged that diet is of paramount importance in the management of the disease. In this review, we would like to highlight the most recent findings in the field of nutrition for the treatment of CD. Our analysis will cover a wide range of topics, from the well-established diets to the new nutritional theories, along with the recent progress in emerging research fields, such as nutrigenomics.
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Affiliation(s)
- Giacomo Caio
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (L.L.); (F.C.); (E.Z.); (F.G.); (R.D.G.)
- Center for the Study and Treatment of Chronic Inflammatory Intestinal Diseases (IBD) and Gastroenterological Manifestations of Rare Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Center for the Study and Treatment of Alcohol-Related Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital-Harvard Medical School, Boston, MA 02114, USA
- Correspondence: (G.C.); (G.Z.); Tel.: +39-0532-236823 (G.C.); +39-051-6838307 (G.Z.)
| | - Lisa Lungaro
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (L.L.); (F.C.); (E.Z.); (F.G.); (R.D.G.)
- Department of Internal Medicine, Santissima Annunziata Hospital, Cento (Ferrara), University of Ferrara, 44042 Ferrara, Italy
| | - Fabio Caputo
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (L.L.); (F.C.); (E.Z.); (F.G.); (R.D.G.)
- Center for the Study and Treatment of Chronic Inflammatory Intestinal Diseases (IBD) and Gastroenterological Manifestations of Rare Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Center for the Study and Treatment of Alcohol-Related Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Internal Medicine, Santissima Annunziata Hospital, Cento (Ferrara), University of Ferrara, 44042 Ferrara, Italy
| | - Eleonora Zoli
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (L.L.); (F.C.); (E.Z.); (F.G.); (R.D.G.)
- Department of Internal Medicine, Santissima Annunziata Hospital, Cento (Ferrara), University of Ferrara, 44042 Ferrara, Italy
| | - Fiorella Giancola
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (L.L.); (F.C.); (E.Z.); (F.G.); (R.D.G.)
| | - Giuseppe Chiarioni
- Division of Gastroenterology of the University of Verona, A.O.U.I. Verona, 37126 Verona, Italy;
- Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7080, USA
| | - Roberto De Giorgio
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (L.L.); (F.C.); (E.Z.); (F.G.); (R.D.G.)
- Center for the Study and Treatment of Chronic Inflammatory Intestinal Diseases (IBD) and Gastroenterological Manifestations of Rare Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Center for the Study and Treatment of Alcohol-Related Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
| | - Giorgio Zoli
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (L.L.); (F.C.); (E.Z.); (F.G.); (R.D.G.)
- Center for the Study and Treatment of Chronic Inflammatory Intestinal Diseases (IBD) and Gastroenterological Manifestations of Rare Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Center for the Study and Treatment of Alcohol-Related Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Internal Medicine, Santissima Annunziata Hospital, Cento (Ferrara), University of Ferrara, 44042 Ferrara, Italy
- Correspondence: (G.C.); (G.Z.); Tel.: +39-0532-236823 (G.C.); +39-051-6838307 (G.Z.)
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Study Protocol of a Multicenter Randomized Controlled Trial to Tackle Obesity through a Mediterranean Diet vs. a Traditional Low-Fat Diet in Adolescents: The MED4Youth Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094841. [PMID: 34062731 PMCID: PMC8125034 DOI: 10.3390/ijerph18094841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/23/2021] [Accepted: 04/25/2021] [Indexed: 12/26/2022]
Abstract
Youth obesity is a strong predictor of adult obesity, which has well-known negative health consequences. Thus, addressing adult obesity requires tackling youth obesity. MED4Youth's main objective is to strengthen the link between the Mediterranean Diet (MD) and the health benefits against youth obesity and associated cardiovascular disease (CVD) risk factors, identifying positive effects exerted by an MD including sourdough bread and healthy products from the Mediterranean basis (chickpeas/hummus, nuts, and pomegranate juice). For this purpose, a multicenter randomized controlled trial in which an MD-based intervention will be compared to a traditional low-fat diet intervention will be carried out with 240 overweight and obese adolescents (13-17 years) from Spain, Portugal, and Italy. Both interventions will be combined with an educational web-application addressed to engage the adolescents through a learning-through-playing approach, using both educational materials and games. To assess the interventions, adherence to the MD, dietary records, physical activity, food frequency, sociodemographic, and quality of life questionnaires as well as classical anthropometric and biochemical parameters will be evaluated. Furthermore, an omics approach will be performed to elucidate whether the interventions can shape the gut microbiota and gut-derived metabolites to gain knowledge on the mechanisms through which the MD can exert its beneficial effects.
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Deep Transcranial Magnetic Stimulation Affects Gut Microbiota Composition in Obesity: Results of Randomized Clinical Trial. Int J Mol Sci 2021; 22:ijms22094692. [PMID: 33946648 PMCID: PMC8125086 DOI: 10.3390/ijms22094692] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023] Open
Abstract
Growing evidence highlights the crucial role of gut microbiota in affecting different aspects of obesity. Considering the ability of deep transcranial magnetic stimulation (dTMS) to modulate the cortical excitability, the reward system, and, indirectly, the autonomic nervous system (ANS), we hypothesized a potential role of dTMS in affecting the brain-gut communication pathways, and the gut microbiota composition in obesity. In a hospital setting, 22 subjects with obesity (5 M, 17 F; 44.9 ± 2.2 years; BMI 37.5 ± 1.0 kg/m2) were randomized into three groups receiving 15 sessions (3 per week for 5 weeks) of high frequency (HF), low frequency (LF) dTMS, or sham stimulation. Fecal samples were collected at baseline and after 5 weeks of treatment. Total bacterial DNA was extracted from fecal samples using the QIAamp DNA Stool Mini Kit (Qiagen, Italy) and analyzed by a metagenomics approach (Ion Torrent Personal Genome Machine). After 5 weeks, a significant weight loss was found in HF (HF: −4.1 ± 0.8%, LF: −1.9 ± 0.8%, sham: −1.3 ± 0.6%, p = 0.042) compared to LF and sham groups, associated with a decrease in norepinephrine compared to baseline (HF: −61.5 ± 15.2%, p < 0.01; LF: −31.8 ± 17.1%, p < 0.05; sham: −35.8 ± 21.0%, p > 0.05). Furthermore, an increase in Faecalibacterium (+154.3% vs. baseline, p < 0.05) and Alistipes (+153.4% vs. baseline, p < 0.05) genera, and a significant decrease in Lactobacillus (−77.1% vs. baseline, p < 0.05) were found in HF. Faecalibacterium variations were not significant compared to baseline in the other two groups (LF: +106.6%, sham: +27.6%; p > 0.05) as well as Alistipes (LF: −54.9%, sham: −15.1%; p > 0.05) and Lactobacillus (LF: −26.0%, sham: +228.3%; p > 0.05) variations. Norepinephrine change significantly correlated with Bacteroides (r2 = 0.734; p < 0.05), Eubacterium (r2 = 0.734; p < 0.05), and Parasutterella (r2 = 0.618; p < 0.05) abundance variations in HF. In conclusion, HF dTMS treatment revealed to be effective in modulating gut microbiota composition in subjects with obesity, reversing obesity-associated microbiota variations, and promoting bacterial species representative of healthy subjects with anti-inflammatory properties.
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Duncanson K, Burns G, Pryor J, Keely S, Talley NJ. Mechanisms of Food-Induced Symptom Induction and Dietary Management in Functional Dyspepsia. Nutrients 2021; 13:1109. [PMID: 33800668 PMCID: PMC8066021 DOI: 10.3390/nu13041109] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 12/12/2022] Open
Abstract
Functional dyspepsia (FD) is a common disorder of gut-brain interaction, characterised by upper gastrointestinal symptom profiles that differentiate FD from the irritable bowel syndrome (IBS), although the two conditions often co-exist. Despite food and eating being implicated in FD symptom induction, evidence-based guidance for dietetic management of FD is limited. The aim of this narrative review is to collate the possible mechanisms for eating-induced and food-related symptoms of FD for stratification of dietetic management. Specific carbohydrates, proteins and fats, or foods high in these macronutrients have all been reported as influencing FD symptom induction, with removal of 'trigger' foods or nutrients shown to alleviate symptoms. Food additives and natural food chemicals have also been implicated, but there is a lack of convincing evidence. Emerging evidence suggests the gastrointestinal microbiota is the primary interface between food and symptom induction in FD, and is therefore a research direction that warrants substantial attention. Objective markers of FD, along with more sensitive and specific dietary assessment tools will contribute to progressing towards evidence-based dietetic management of FD.
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Affiliation(s)
- Kerith Duncanson
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (G.B.); (J.P.); (S.K.)
- Centre for Research Excellence, Digestive Health, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Grace Burns
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (G.B.); (J.P.); (S.K.)
- Centre for Research Excellence, Digestive Health, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Jennifer Pryor
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (G.B.); (J.P.); (S.K.)
- Centre for Research Excellence, Digestive Health, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Simon Keely
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (G.B.); (J.P.); (S.K.)
- Centre for Research Excellence, Digestive Health, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Nicholas J. Talley
- College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW 2308, Australia; (G.B.); (J.P.); (S.K.)
- Centre for Research Excellence, Digestive Health, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- Department of Gastroenterology, John Hunter Hospital, New Lambton Heights, NSW 2305, Australia
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Jiang Y, Jarr K, Layton C, Gardner CD, Ashouri JF, Abreu MT, Sinha SR. Therapeutic Implications of Diet in Inflammatory Bowel Disease and Related Immune-Mediated Inflammatory Diseases. Nutrients 2021; 13:890. [PMID: 33801883 PMCID: PMC8001318 DOI: 10.3390/nu13030890] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/03/2021] [Accepted: 03/07/2021] [Indexed: 12/11/2022] Open
Abstract
Despite being a focal issue to patients, the effect of diet on adult inflammatory bowel disease (IBD) remains underexplored with limited guidance. While promising clinical trials are currently underway, there is a need for further evidence-based recommendations. As such, we summarize the current evidence on various diets used in the treatment of IBD and also explore the potential applications of dietary data from related immune-mediated inflammatory diseases (IMIDs), such as rheumatoid arthritis and psoriasis, to provide additional information to inform IBD providers. To date, there have been multiple diets investigated as adjunctive therapy in IBD, but many associated studies are small, non-randomized, and not controlled. Mediterranean, vegetarian/vegan, and reduced-calorie/fasting diets have been studied and have shown some positive results in other IMIDs, which may suggest potential applicability to those with IBD, but larger, well-designed clinical trials are needed for further guidance. Gluten-free and low fermentable oligosaccharides, disaccharides, monosaccharides, and polyols fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAP)diets do not appear to have an impact on IBD disease activity, but low FODMAP may potentially be helpful for those with concurrent functional gastrointestinal symptoms. Specific carbohydrate diets have been mainly assessed in children but show some potential in small adult studies.
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Affiliation(s)
- Yan Jiang
- Division of Gastroenterology & Hepatology, Department of Medicine, Stanford University, 300 Pasteur Drive, M211, Stanford, CA 94305, USA; (Y.J.); (K.J.)
| | - Karolin Jarr
- Division of Gastroenterology & Hepatology, Department of Medicine, Stanford University, 300 Pasteur Drive, M211, Stanford, CA 94305, USA; (Y.J.); (K.J.)
| | - Cosima Layton
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
| | - Christopher D. Gardner
- Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, CA 94305, USA;
| | - Judith F. Ashouri
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, CA 94143, USA;
| | - Maria T. Abreu
- Division of Gastroenterology, Department of Medicine, Leonard Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
| | - Sidhartha R. Sinha
- Division of Gastroenterology & Hepatology, Department of Medicine, Stanford University, 300 Pasteur Drive, M211, Stanford, CA 94305, USA; (Y.J.); (K.J.)
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Impact of dietary and lifestyle interventions in elderly or people diagnosed with diabetes, metabolic disorders, cardiovascular disease, cancer and micronutrient deficiency on micronuclei frequency - A systematic review and meta-analysis. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2021; 787:108367. [PMID: 34083034 DOI: 10.1016/j.mrrev.2021.108367] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/10/2021] [Accepted: 01/13/2021] [Indexed: 01/29/2023]
Abstract
Chronic diseases such as cardiovascular diseases, type 2 diabetes or cancer are the global leading cause of mortality. Lifestyle interventions are most effective in reducing metabolic risk factors, disease progression or even side effects of a disease. They are also contributing to decelerate the aging process. Genome instability is very often associated with aging or the above-mentioned diseases, and triggered by inflammation and oxidative stress. An established method to measure chromosomal damage is the cytokinesis block micronucleus (CBMN) cytome assay. The aim of this review and meta-analysis is to collect and analyse the current literature regarding the effects of a lifestyle based (dietary) intervention on changes of micronuclei (MNi), nucleoplasmic bridges (NPBs) and nuclear buds (NBUDs) in elderly subjects or people diagnosed with diabetes, metabolic disorders, cardiovascular disease, cancer or micronutrient deficiency. Although the main important diseases were considered as well as the large topic of aging, the number and methodological quality in terms of samples size, duration and rationale of the intervention or an inclusion of a control group of available intervention studies with these backgrounds was low. Most of the studies used antioxidant vitamins or folate, few investigated the whole diet. Only one study showed a physical activity intervention approach. The interventions did not lead to decreased genomic marker despite a few cancer related studies, where particularly MN frequency in mucosa lesions and leukoplakia was reduced by green tea and antioxidants. The performed meta-analysis of the available RCTs did not show a significant reduction of MNi, NBUDs or NPBs of most of the interventions performed, except for green tea. Data show in general a lack of an appropriate number of sound lifestyle based intervention studies linking cytogenetic damage and chronic diseases.
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Oxidative Stress in the Pathogenesis of Crohn's Disease and the Interconnection with Immunological Response, Microbiota, External Environmental Factors, and Epigenetics. Antioxidants (Basel) 2021; 10:antiox10010064. [PMID: 33430227 PMCID: PMC7825667 DOI: 10.3390/antiox10010064] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/03/2021] [Accepted: 01/04/2021] [Indexed: 12/14/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a complex multifactorial disorder in which external and environmental factors have a large influence on its onset and development, especially in genetically susceptible individuals. Crohn’s disease (CD), one of the two types of IBD, is characterized by transmural inflammation, which is most frequently located in the region of the terminal ileum. Oxidative stress, caused by an overabundance of reactive oxygen species, is present locally and systemically in patients with CD and appears to be associated with the well-described imbalanced immune response and dysbiosis in the disease. Oxidative stress could also underlie some of the environmental risk factors proposed for CD. Although the exact etiopathology of CD remains unknown, the key role of oxidative stress in the pathogenesis of CD is extensively recognized. Epigenetics can provide a link between environmental factors and genetics, and numerous epigenetic changes associated with certain environmental risk factors, microbiota, and inflammation are reported in CD. Further attention needs to be focused on whether these epigenetic changes also have a primary role in the pathogenesis of CD, along with oxidative stress.
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Chicco F, Magrì S, Cingolani A, Paduano D, Pesenti M, Zara F, Tumbarello F, Urru E, Melis A, Casula L, Fantini MC, Usai P. Multidimensional Impact of Mediterranean Diet on IBD Patients. Inflamm Bowel Dis 2021; 27:1-9. [PMID: 32440680 PMCID: PMC7737160 DOI: 10.1093/ibd/izaa097] [Citation(s) in RCA: 104] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND & AIMS Malnutrition with the accumulation of fat tissue and nonalcoholic fatty liver disease (NAFLD) are conditions associated with inflammatory bowel disease (IBD). Visceral fat and NAFLD-related liver dysfunction can both worsen intestinal inflammation. Because the Mediterranean diet (Md) has been shown to ameliorate both obesity and NAFLD, the aim of this study was to analyze the impact of Md on the nutritional state, liver steatosis, clinical disease activity, and quality of life (QoL) in IBD patients. METHODS Patients with IBD, both Crohn's disease (CD) and ulcerative colitis (UC), followed Md for 6 months. Their body mass index (BMI), body tissue composition, liver steatosis and function, serum lipid profile, clinical disease activity, and inflammatory biomarkers (C-reactive protein and fecal calprotectin) were collected at baseline (T0) and compared with those obtained after 6 months (T180) to evaluate the impact of Md. RESULTS One hundred forty-two IBD patients, 84 UC and 58 CD, followed Md for 6 months. At T180, diet-adherent CD and UC improved BMI (UC -0.42, P = 0.002; CD -0.48, P = 0.032) and waist circumference (UC -1.25 cm, P = 0.037; CD -1.37 cm, P = 0.041). Additionally, the number of patients affected by liver steatosis of any grade was significantly reduced in both groups (UC T0 31 of 84 [36.9%] vs T180 18 of 84 [21.4%], P = 0.0016; CD T0 27 of 58 [46.6%] vs T180 18 of 58 [31.0%], P < 0.001) after dietary intervention. Finally, after 6 months of the diet, fewer UC and CD patients with stable therapy had active disease (UC T0 14 of 59 [23.7%] vs T180 4 of 59 [6.8%], P = 0.004; CD T0 9 of 51 [17.6%] vs T180 2 of 51 [3.0%], P = 0.011) and elevated inflammatory biomarkers. Mediterranean diet improved QoL in both UC and CD, but neither serum lipid profile nor liver function were modified by the diet. CONCLUSIONS A significant reduction of malnutrition-related parameters and liver steatosis was observed in both CD and UC patients after short-term dietary intervention based on the adoption of Md, and this was associated with a spontaneous improvement of disease activity and inflammatory markers.
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Affiliation(s)
- Fabio Chicco
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Salvatore Magrì
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Arianna Cingolani
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Danilo Paduano
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Mario Pesenti
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Federica Zara
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Francesca Tumbarello
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Emanuela Urru
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Alessandro Melis
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Laura Casula
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Massimo Claudio Fantini
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
| | - Paolo Usai
- Department of Medical Sciences and Public Health, University of Cagliari, Italy; Presidio Policlinico of Monserrato, Cagliari, Italy
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Predefined Diets in Patients with Inflammatory Bowel Disease: Systematic Review and Meta-Analysis. Nutrients 2020; 13:nu13010052. [PMID: 33375314 PMCID: PMC7823473 DOI: 10.3390/nu13010052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic disease mediated by the immune system and characterized by the importance of diet in pathological development. This study aims to understand how the use of predefined diets can affect the adult population diagnosed with IBD. We conducted a systematic review and meta-analysis. From the different databases (MEDLINE, Scopus, Cochrane, LILACS, CINAHL, and WOS), we found 4195 registers. After a review process, only 31 research studies were selected for qualitative synthesis and 10 were selected for meta-analysis. The variables used were Crohn’s Disease Activity Index (CDAI) for patients with Crohn’s Disease (CD) and fecal calprotectin (FC), C-Reactive Protein (CRP), and albumin (ALB) for patients with IBD. Predefined diets have been shown to have partial efficacy for the treatment of IBD and are compatible with other medical treatments. CDAI improved but with reasonable doubts due to the high heterogeneity of the data, while no differences were observed for ALB, FC, and CRP. More studies that evaluate the influence of predefined diets on IBD patients are needed due to the great variability in diets and the tools used to measure their effects.
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Arora K, Green M, Prakash S. The Microbiome and Alzheimer's Disease: Potential and Limitations of Prebiotic, Synbiotic, and Probiotic Formulations. Front Bioeng Biotechnol 2020; 8:537847. [PMID: 33384986 PMCID: PMC7771210 DOI: 10.3389/fbioe.2020.537847] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 11/17/2020] [Indexed: 12/20/2022] Open
Abstract
The Microbiome has generated significant attention for its impacts not only on gastrointestinal health, but also on signaling pathways of the enteric and central nervous system via the microbiome gut-brain axis. In light of this, microbiome modulation may be an effective therapeutic strategy for treating or mitigating many somatic and neural pathologies, including neurodegenerative disorders. Alzheimer's disease (AD) is a chronic neurodegenerative disease that interferes with cerebral function by progressively impairing memory, thinking and learning through the continuous depletion of neurons. Although its etiopathogenesis remains uncertain, recent literature endorses the hypothesis that probiotic, prebiotic and synbiotic supplementation alters AD-like symptoms and improves many of its associated disease biomarkers. Alternatively, a dysfunctional microbiota impairs the gut epithelial barrier by inducing chronic gastric inflammation, culminating in neuroinflammation and accelerating AD progression. The findings in this review suggest that probiotics, prebiotics or synbiotics have potential as novel biological prophylactics in treatment of AD, due to their anti-inflammatory and antioxidant properties, their ability to improve cognition and metabolic activity, as well as their capacity of producing essential metabolites for gut and brain barrier permeability.
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Affiliation(s)
- Karan Arora
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine, McGill University, Montreal, QC, Canada
- Department of Bioengineering, Faculty of Engineering, McGill University, Montreal, QC, Canada
- Biena Inc., Saint-Hyacinthe, QC, Canada
| | - Miranda Green
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Satya Prakash
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine, McGill University, Montreal, QC, Canada
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49
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Diet Advice for Crohn's Disease: FODMAP and Beyond. Nutrients 2020; 12:nu12123751. [PMID: 33291329 PMCID: PMC7762196 DOI: 10.3390/nu12123751] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 11/29/2020] [Indexed: 02/06/2023] Open
Abstract
Crohn’s disease (CD) is a chronic, progressive, and destructive granulomatous inflammatory bowel disorder that can involve any part of the gastrointestinal tract. It has been presumed that different types of diet might improve gastrointestinal symptoms in CD patients. The aim of this review was to clarify the efficiency and indications of a low-“fermentable oligo-, di-, mono-saccharides and polyols” (FODMAP) diet (LFD) in CD and to further analyze the available data on other types of diets. PubMed, Cochrane Library, EMBASE and WILEY databases were screened for relevant publications regarding the effect of FODMAP diets on CD. Our search identified 12 articles analyzing the effect of an LFD in CD, 5 articles analyzing the effect of a Mediterranean diet (MD), 2 articles analyzing the effect of a vegetarian diet (VD), and 2 articles analyzing the effect of a low-lactose diet (LLD). The majority of the studies included in this review show the significant efficiency of the LFD in CD patients. We found significant evidence demonstrating that the LFD has a favorable impact on gastrointestinal symptoms in CD patients. Notwithstanding the evidence, it remains to be established if an LFD is more efficient than other types of diets in the short term and especially in the long term.
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50
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Maldonado-Contreras A, Ferrer L, Cawley C, Crain S, Bhattarai S, Toscano J, Ward DV, Hoffman A. Dysbiosis in a canine model of human fistulizing Crohn's disease. Gut Microbes 2020; 12:1785246. [PMID: 32730134 PMCID: PMC7524328 DOI: 10.1080/19490976.2020.1785246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Crohn's disease (CD) is a chronic immune-mediated inflammatory condition caused by the loss of mucosal tolerance toward the commensal microbiota. On average, 29.5% and 42.7% CD patients experience perianal complications at 10 and 20 y after diagnosis, respectively. Perianal CD (pCD) result in high disease burden, diminished quality of life, and elevated health-care costs. Overall pCD are predictors of poor long-term outcomes. Animal models of gut inflammation have failed to fully recapitulate the human manifestations of fistulizing CD. Here, we evaluated dogs with spontaneous canine anal furunculosis (CAF), a disease with clinical similarities to pCD, as a surrogate model for understanding the microbial contribution of human pCD pathophysiology. By comparing the gut microbiomes between dogs suffering from CAF (CAF dogs) and healthy dogs, we show CAF-dog microbiomes are either very dissimilar (dysbiotic) or similar (healthy-like), yet unique, to healthy dog's microbiomes. Compared to healthy or healthy-like CAF microbiomes, dysbiotic CAF microbiomes showed an increased abundance of Bacteroides vulgatus and Escherichia coli and a decreased abundance of Megamonas species and Prevotella copri. Our results mirror what have been reported in previous microbiome studies of patients with CD; particularly, CAF dogs exhibited two distinct microbiome composition: dysbiotic and healthy-like, with determinant bacterial taxa such as E. coli and P. copri that overlap what it has been found on their human counterpart. Thus, our results support the use of CAF dogs as a surrogate model to advance our understanding of microbial dynamics in pCD.
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Affiliation(s)
- Ana Maldonado-Contreras
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA,CONTACT Ana Maldonado-Contreras Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, 01655, USA
| | - Lluís Ferrer
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA, USA
| | - Caitlin Cawley
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Sarah Crain
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA, USA
| | - Shakti Bhattarai
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Juan Toscano
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Doyle V. Ward
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Andrew Hoffman
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA, USA
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