scholarly journals Bioactivity of Polyphenols: Preventive and Adjuvant Strategies toward Reducing Inflammatory Bowel Diseases—Promises, Perspectives, and Pitfalls

2016 ◽  
Vol 2016 ◽  
pp. 1-29 ◽  
Author(s):  
Anouk Kaulmann ◽  
Torsten Bohn
Keyword(s):  
Inflammatory Bowel Diseases ◽  
Short Chain Fatty Acid ◽  
Current Knowledge ◽  
Gut Permeability ◽  
Metabolizing Enzymes ◽  
Cellular Targets ◽  
The Past ◽  
Bowel Diseases ◽  
Inflammatory Bowel ◽  
Cytokine Formation

Inflammatory bowel diseases (IBDs) are characterized by autoimmune and inflammation-related complications of the large intestine (ulcerative colitis) and additional parts of the digestive tract (Crohn’s disease). Complications include pain, diarrhoea, chronic inflammation, and cancer. IBD prevalence has increased during the past decades, especially in Westernized countries, being as high as 1%. As prognosis is poor and medication often ineffective or causing side effects, additional preventive/adjuvant strategies are sought. A possible approach is via diets rich in protective constituents. Polyphenols, the most abundant phytochemicals, have been associated with anti-inflammatory, antioxidant, immunomodulatory, and apoptotic properties. Locally reducing oxidative stress, they can further act on cellular targets, altering gene expression related to inflammation, including NF-κB, Nrf-2, Jak/STAT, and MAPKs, suppressing downstream cytokine formation (e.g., IL-8, IL-1β, and TNF-α), and boosting the bodies’ own antioxidant status (HO-1, SOD, and GPx). Moreover, they may promote, as prebiotics, healthy microbiota (e.g., Bifidobacteria,Akkermansia), short-chain fatty acid formation, and reduced gut permeability/improved tight junction stability. However, potential adverse effects such as acting as prooxidants, or perturbations of efflux transporters and phase I/II metabolizing enzymes, with increased uptake of undesired xenobiotics, should also be considered. In this review, we summarize current knowledge around preventive and arbitrary actions of polyphenols targeting IBD.

scholarly journals Predictors and Early Markers of Response to Biological Therapies in Inflammatory Bowel Diseases

2021 ◽  
Vol 10 (4) ◽  
pp. 853
Author(s):  
Giuseppe Privitera ◽  
Daniela Pugliese ◽  
Gian Ludovico Rapaccini ◽  
Antonio Gasbarrini ◽  
Alessandro Armuzzi ◽  
...  
Keyword(s):  
Inflammatory Bowel Diseases ◽  
Current Knowledge ◽  
Real Life ◽  
Response To Therapy ◽  
Significant Heterogeneity ◽  
Intestinal Damage ◽  
Biological Therapies ◽  
Early Markers ◽  
Bowel Diseases ◽  
Inflammatory Bowel

Inflammatory bowel diseases (IBD) are chronic conditions that primarily affect the gastrointestinal tract, with a complex pathogenesis; they are characterized by a significant heterogeneity of clinical presentations and of inflammatory pathways that sustain intestinal damage. After the introduction of the first biological therapies, the pipeline of therapies for IBD has been constantly expanding, and a significant number of new molecules is expected in the next few years. Evidence from clinical trials and real-life experiences has taught us that up to 40% of patients do not respond to a specific drug. Unfortunately, to date, clinicians lack a valid tool that can predict each patient’s response to therapies and that could help them in choosing what drug to administer. Several candidate biomarkers have been investigated so far, with conflicting results: clinical, genetic, immunological, pharmacokinetic and microbial markers have been tested, but no ideal marker has been identified so far. Based on recent evidence, multiparametric models seemingly hold the greatest potential for predicting response to therapy. In this narrative review, we aim to summarize the current knowledge on predictors and early markers of response to biological therapies in IBD.

scholarly journals Epigenetics of Inflammatory Bowel Disease: Unraveling Pathogenic Events

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Beatriz Mateos ◽  
Cora Palanca-Ballester ◽  
Esteban Saez-Gonzalez ◽  
Inés Moret ◽  
Adrian Lopez ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Clinical Practice ◽  
Inflammatory Bowel Diseases ◽  
Drug Response ◽  
Current Knowledge ◽  
Epigenetic Biomarkers ◽  
Bowel Diseases ◽  
Potential Applicability ◽  
Inflammatory Bowel ◽  
New Biomarkers

Abstract Epigenetics has emerged as a new and promising field in recent years. Because there exists a need to find new biomarkers and improve diagnosis, prognosis, and drug response for inflammatory bowel diseases, the research on epigenetic biomarkers for molecular diagnostics encourages the translation of this field from the bench to the clinical practice. In this review, we present an overview of the current knowledge and its potential applicability of this emerging field in inflammatory bowel diseases.

scholarly journals Evidence for a Potential Role of Metallothioneins in Inflammatory Bowel Diseases

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
Anouk Waeytens ◽  
Martine De Vos ◽  
Debby Laukens
Keyword(s):  
Inflammatory Bowel Diseases ◽  
Potential Role ◽  
Current Knowledge ◽  
Zinc Homeostasis ◽  
Central Position ◽  
Small Proteins ◽  
Immune Mediated ◽  
Bowel Diseases ◽  
Inflammatory Bowel

Inflammatory bowel diseases (IBDs) are a group of chronic, relapsing, immune-mediated disorders of the intestine, including Crohn's disease and ulcerative colitis. Recent studies underscore the importance of the damaged epithelial barrier and the dysregulated innate immune system in their pathogenesis. Metallothioneins (MTs) are a family of small proteins with a high and conserved cysteine content that are rapidly upregulated in response to an inflammatory stimulus. Herein, we review the current knowledge regarding the expression and potential role of MTs in IBD. MTs exert a central position in zinc homeostasis, modulate the activation of the transcription factor nuclear factor (NF)-B, and serve as antioxidants. In addition, MTs could be involved in IBD through their antiapoptotic effects or through specific immunomodulating extracellular effects. Reports on MT expression in IBD are contradictory but clearly demonstrate a deviant MT expression supporting the idea that these aberrations in IBD require further clarification.

scholarly journals Genetic Polymorphisms in Metabolizing Enzymes Modifying the Association Between Smoking and Inflammatory Bowel Diseases

2014 ◽  
Vol 20 (5) ◽  
pp. 783-789 ◽  
Author(s):  
Ashwin N. Ananthakrishnan ◽  
Deanna D. Nguyen ◽  
Jenny Sauk ◽  
Vijay Yajnik ◽  
Ramnik J. Xavier
Keyword(s):  
Genetic Polymorphisms ◽  
Inflammatory Bowel Diseases ◽  
Metabolizing Enzymes ◽  
Bowel Diseases ◽  
Inflammatory Bowel

scholarly journals Management of Musculoskeletal Manifestations in Inflammatory Bowel Disease

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Tejas Sheth ◽  
C. S. Pitchumoni ◽  
Kiron M. Das
Keyword(s):  
Inflammatory Bowel Diseases ◽  
Multidisciplinary Approach ◽  
Physical Therapist ◽  
Cost Savings ◽  
The Past ◽  
The Us ◽  
Bowel Diseases ◽  
Musculoskeletal Manifestations ◽  
Inflammatory Bowel ◽  
Near Future

Musculoskeletal manifestations are the most common extraintestinal manifestations in inflammatory bowel diseases. Some appendicular manifestations are independent of gut inflammation and are treated with standard anti-inflammatory strategies. On the other hand, axial involvement is linked to gut inflammatory activity; hence, there is a considerable amount of treatment overlap. Biological therapies have revolutionized management of inflammatory bowel diseases as well as of associated articular manifestations. Newer mechanisms driving gut associated arthropathy have surfaced in the past decade and have enhanced our interests in novel treatment targets. Introduction of biosimilar molecules is expected in the US market in the near future and will provide an opportunity for considerable cost savings on healthcare. A multidisciplinary approach involving a gastroenterologist, rheumatologist, and physical therapist is ideal for these patients.

scholarly journals Environment and the Inflammatory Bowel Diseases

2013 ◽  
Vol 27 (3) ◽  
pp. e18-e24 ◽  
Author(s):  
Alexandra Frolkis ◽  
Levinus A Dieleman ◽  
Herman W Barkema ◽  
Remo Panaccione ◽  
Subrata Ghosh ◽  
...  
Keyword(s):  
Risk Factors ◽  
Environmental Factors ◽  
Environmental Risk ◽  
Inflammatory Bowel Diseases ◽  
Current Knowledge ◽  
Environmental Risk Factors ◽  
Past Century ◽  
Commensal Flora ◽  
Bowel Diseases ◽  
Inflammatory Bowel

Inflammatory bowel diseases (IBD), which consists of Crohn disease and ulcerative colitis, are chronic inflammatory conditions of the gas-trointestinal tract. In genetically susceptible individuals, the interaction between environmental factors and normal intestinal commensal flora is believed to lead to an inappropriate immune response that results in chronic inflammation. The incidence of IBD have increased in the past century in developed and developing countries. The purpose of the present review is to summarize the current knowledge of the association between environmental risk factors and IBD. A number of environmental risk factors were investigated including smoking, hygiene, microorganisms, oral contraceptives, antibiotics, diet, breast-feeding, geographical factors, pollution and stress. Inconsistent findings among the studies highlight the complex pathogenesis of IBD. Additional studies are necessary to identify and elucidate the role of environmental factors in IBD etiology.

scholarly journals Neurologic manifestations in inflammatory bowel diseases: Current knowledge and novel insights

2010 ◽  
Vol 4 (2) ◽  
pp. 115-124 ◽  
Author(s):  
Christos D. Zois ◽  
Konstantinos H. Katsanos ◽  
Maria Kosmidou ◽  
Epameinondas V. Tsianos
Keyword(s):  
Inflammatory Bowel Diseases ◽  
Current Knowledge ◽  
Neurologic Manifestations ◽  
Bowel Diseases ◽  
Inflammatory Bowel

scholarly journals Emerging Role of Exosomes in Diagnosis and Treatment of Infectious and Inflammatory Bowel Diseases

Cells ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 1111 ◽  
Author(s):  
Anaïs Larabi ◽  
Nicolas Barnich ◽  
Hang Thi Thu Nguyen
Keyword(s):  
Inflammatory Bowel Diseases ◽  
Bacterial Infections ◽  
Pathogenic Bacteria ◽  
Intestinal Inflammation ◽  
Current Knowledge ◽  
Biological Fluids ◽  
Bowel Diseases ◽  
Therapeutic Molecules ◽  
Inflammatory Bowel

To communicate with each other, cells release exosomes that transfer their composition, including lipids, proteins and nucleic acids, to neighboring cells, thus playing a role in various pathophysiological processes. During an infection with pathogenic bacteria, such as adherent-invasive E. coli (AIEC) associated with Crohn disease, exosomes secreted by infected cells can have an impact on the innate immune responses of surrounding cells to infection. Furthermore, inflammation can be amplified via the exosomal shuttle during infection with pathogenic bacteria, which could contribute to the development of the associated disease. Since these vesicles can be released in various biological fluids, changes in exosomal content may provide a means for the identification of non-invasive biomarkers for infectious and inflammatory bowel diseases. Moreover, evidence suggests that exosomes could be used as vaccines to prime the immune system to recognize and kill invading pathogens, and as therapeutic components relieving intestinal inflammation. Here, we summarize the current knowledge on the role of exosomes in bacterial infections and highlight their potential use as biomarkers, vaccines and conveyers of therapeutic molecules in inflammatory bowel diseases.

scholarly journals Inflammatory Bowel Disease Etiology: Current Knowledge

Pteridines ◽  
2018 ◽  
Vol 29 (1) ◽  
pp. 206-214 ◽  
Author(s):  
Justyna Kikut ◽  
Nina Konecka ◽  
Maciej Ziętek ◽  
Małgorzata Szczuko
Keyword(s):  
Inflammatory Bowel Diseases ◽  
Depressive Disorders ◽  
Current Knowledge ◽  
The Body ◽  
Disease Etiology ◽  
Systemic Complications ◽  
Nonalcoholic Fatty Liver ◽  
Bowel Diseases ◽  
Inflammatory Bowel ◽  
Unclear Etiology

Abstract Non-specific inflammatory bowel diseases (IBD) include Crohn’s disease (CD) and ulcerative colitis (UC). Both diseases are characterized by chronic inflammation of unclear etiology. The inflammatory bowel diseases incidence is continuously observed to rise. Colon inflammatory response is a physiological process which occurrence is indispensable as an organisms’ defense reaction. The inflammation may be caused by internal factors associated with body’s cells as well as external factors, such as infections and exposition for inflammatory agents. Until recently, IBD have been classified as autoimmune diseases, today they seem to be associated with gut barrier disorders or dysbiosis. Factors that predispose to inflammatory bowel diseases include: genetic factors, dysbiosis and so called western-type diet, natural components such as gluten and lactose. In addition, the development of the disease is favored by: cigarette smoking, phosphate, nanomolecules, sodium chloride, emulgents, carrageenan, carboxymethylcellulose, pollution, maltodextrin. IBD affects whole the body, causing serious medical consequences. Symptoms like anxiety and chronic stress, that occur commonly, can lead to depressive disorders. Quantitative and qualitative dietary deficiency caused by absorption disorders, may promote the occurrence of osteoporosis and osteopenia. In addition, dysbiosis coexisting with alterations in intestinal permeability can lead to the development of nonalcoholic fatty liver disease. IBD medical consequences include also systemic complications, associated with the extra gastrointestinal manifestations’ occurrence.

Sign in / Sign up

Export Citation Format

Share Document