scholarly journals Genetic Factors and the Intestinal Microbiome Guide Development of Microbe-Based Therapies for Inflammatory Bowel Diseases

2019 ◽  
Vol 156 (8) ◽  
pp. 2174-2189 ◽  
Author(s):  
Louis J. Cohen ◽  
Judy H. Cho ◽  
Dirk Gevers ◽  
Hiutung Chu
2015 ◽  
Vol 69 ◽  
pp. 335-344 ◽  
Author(s):  
Hubert Zatorski ◽  
Maciej Sałaga ◽  
Marta Zielińska ◽  
Jakub Fichna

Nutrients ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 216
Author(s):  
Alicja Ewa Ratajczak ◽  
Aleksandra Szymczak-Tomczak ◽  
Agnieszka Zawada ◽  
Anna Maria Rychter ◽  
Agnieszka Dobrowolska ◽  
...  

Patients suffering from Crohn’s disease and ulcerative colitis are at higher risk of osteoporosis due to lower bone mineral density. Risk factors of osteoporosis are divided into unmodifiable, namely, age, gender, genetic factors, as well as modifiable, including diet, level of physical activity, and the use of stimulants. Coffee and tea contain numerous compounds affecting bone metabolism. Certain substances such as antioxidants may protect bones; other substances may increase bone resorption. Nevertheless, the influence of coffee and tea on the development and course of inflammatory bowel diseases is contradictory.


2015 ◽  
Vol 6 (3) ◽  
pp. 91-97 ◽  
Author(s):  
Nadezhda Konstantinovna Zaletova ◽  
Lubov Pavlovna Vostokova ◽  
Alexey Borisovich Chukhlovin ◽  
Elena Alexandrovna Kornienko ◽  
Anna Timofeevna Tretjak

The article concerns genetic factors that determine efficiency of steroid treatment for chronic inflammatory bowel diseases (IBD) in children, focused, mostly, on Crohn disease and nonspecific ulcerative colitis. Their incidence comprises 5 to 15 per 100 000 children and adolescents. In acute phase, therapy of these diseases is based on salicylates and glucocorticoids which regulate cytokine network and immune cell functions. Application of high-dose glucocorticoids (GCs) exerts а sufficient immunosuppressive action. These effects are performed via specific GC receptors in the target cell populations. Hence, numbers and functionality of GC receptors are important for clinical response to GC treatment. The aim of this review is discern major genetic effects upon functioning of glucocorticoid receptors. Here we discuss effects of N363S, ER22/23EK, and NR3C1 variants, the most known GC functional gene polymorphisms. These gene variants are often associated with altered GC gene expression in individual cases of IBD. Moreover, some other gene variants are able to modulate the GC receptor expression, thus making it difficult to assess genetic predisposition to altered clinical response to glucocorticoids. Hence, the regulatory effects of single gene variants upon GC receptors may not show direct correlations with clinical effects of the drug. Therefore, we propose an immediate way to assess the gene activity, i. e., quantitative analysis of the gene transcription (mRNA detection) in the patients’ cells before and during glucocorticoid therapy, presuming further application of this parameter as a predictive marker for evaluation of optimal therapeutic response in the individual IBD patients.


2021 ◽  
Vol 10 (11) ◽  
pp. 2466
Author(s):  
Katarzyna Akutko ◽  
Andrzej Stawarski

Inflammatory bowel diseases (IBD), which include Crohn’s disease (CD) and ulcerative colitis (UC), are chronic inflammatory diseases of the digestive tract with periods of remission and relapses. The etiopathogenesis of IBD is multifactorial and has not been fully understood. Hence, only symptomatic treatment of these diseases is possible. The current pharmacological treatment has variable efficacy and is associated with the risk of significant side effects. Therefore, there is a constant need to search for new types of therapies with a high safety profile. Considering that the qualitative and quantitative profile of the gastrointestinal microbiome is often different in patients with IBD than in healthy individuals, there is a need for looking for therapies aimed at restoring intestinal microbiome homeostasis. Thus, the use of strictly defined probiotics, prebiotics and synbiotics may become an alternative form of IBD therapy. There is evidence that treatment with certain probiotic strains, e.g., VSL#3 and Escherischia coli Nissle 1917, is an effective form of therapy to induce remission in patients with mild to moderate UC. So far, the effectiveness of the use of probiotics, prebiotics and synbiotics in inducing or maintaining remission in patients with CD has not been confirmed. There are also reports of possible beneficial effects of fecal microbiota transplantation (FMT) on the course of IBD, especially UC. Further, well-planned studies on a large group of patients are needed to determine the role of specific probiotic strains, prebiotics, synbiotics and FMT in the treatment of IBD in adults and in children.


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