scholarly journals Regulated Spatial Distribution of Cyclooxygenases and Lipoxygenases in Crohn's Ulcer

2006 ◽  
Vol 2006 ◽  
pp. 1-6 ◽  
Author(s):  
Yao Mao ◽  
Jian'an Ren ◽  
Jieshou Li

Background and Aims. Arachidonic acid metabolism actively participates in the initiation, climaxing, and resolution phases of inflammation, and its close connection with inflammatory bowel diseases has been only recently discovered. We aimed to clarify the role of different arachidonic pathways and the interrelationships between them in Crohn's disease.Methods. Seventeen specimens of Crohn's disease dated between 2003/1/1 and 2005/1/1 were collected and underwent immunohistochemical analyses with cylcooxygenase 1, cyclooxygenase 2, 5-lipoxygenase, and 15-lipoxygenase-1 antibodies.Results. (1) The spatial distribution of the three leading enzymes in arachidonic acid pathway—cyclooxygenase 2, 5-lipoxygenase, and 15-lipoxygenase-1—followed sequential arrangement in Crohn's ulcer: neutrophils highly expressing 5-lipoxygenase were in the utmost surface which bordered the band of cyclooxygenase-2 expression that is located just beneath it, and in the lower layers and below the granulation region were eosinophils carrying 15-lipoxygeanse-1. (2) Cyclooxygenase-2 and 15-Lipoxygenase-1-positive cells formed two barrier-like structures that possibly inhibited neutrophil infiltration.Conclusion. The regulated distribution indicated coordinated interplay between inflammatory cells and parenchymal cells, between arachidonic acid pathways, and between innate and adaptive immunity; and the barrier-like structures indicated protective roles for cyclooxygenase 2 and 15-Lipoxygenase-1 in Crohn's disease.

1988 ◽  
Vol 27 (03) ◽  
pp. 83-86 ◽  
Author(s):  
B. Briele ◽  
F. Wolf ◽  
H. J. Biersack ◽  
F. F. Knapp ◽  
A. Hotze

A prospective study was initiated to compare the clinically proven results concerning localization/extent and activity of inflammatory bowel diseases with those of 111ln-oxine leukocyte imaging. All patients studied were completely examined with barium enema x-ray, clinical and laboratory investigations, and endoscopy with histopathology. A total of 31 leukocyte scans were performed in 15 patients (12 with Crohn’s disease, 3 with ulcerative colitis). The scans were graded by comparing the cell uptake of a lesion (when present) and a bone marrow area providing a count ratio (CR). The inflammatory lesions were correctly localized on 26 leukocyte scans, and in 21 scans the scintigraphically estimated extent of disease was identical to endoscopy. In 5 cases the disease extent was underestimated, 4 scans in patients with relapse of Crohn’s disease were falsely negative, and in one patient with remission truly negative. The scintigraphically assessed disease activity was also in a good agreement with clinical disease activity based on histopathology in all cases. We conclude that leukocyte imaging provides valuable information about localization and activity of inflammatory bowel disease.


2021 ◽  
Vol 13 (1) ◽  
Author(s):  
M. Hornschuh ◽  
E. Wirthgen ◽  
M. Wolfien ◽  
K. P. Singh ◽  
O. Wolkenhauer ◽  
...  

AbstractEpigenetics has become a promising field for finding new biomarkers and improving diagnosis, prognosis, and drug response in inflammatory bowel disease. The number of people suffering from inflammatory bowel diseases, especially Crohn's disease, has increased remarkably. Crohn's disease is assumed to be the result of a complex interplay between genetic susceptibility, environmental factors, and altered intestinal microbiota, leading to dysregulation of the innate and adaptive immune response. While many genetic variants have been identified to be associated with Crohn's disease, less is known about the influence of epigenetics in the pathogenesis of this disease. In this review, we provide an overview of current epigenetic studies in Crohn's disease. In particular, we enable a deeper insight into applied bioanalytical and computational tools, as well as a comprehensive update toward the cell-specific evaluation of DNA methylation and histone modifications.


2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Leen Jamel Doya ◽  
Maria Naamah ◽  
Noura Karkamaz ◽  
Narmin Hajo ◽  
Fareeda Wasfy Bijow ◽  
...  

ABSTRACT Inflammatory bowel diseases (IBD) and Celiac disease (CeD) are immune-mediated gastrointestinal diseases with incompletely understood etiology. Both diseases show a multifactorial origin with a complex interplay between genetic, environmental factors, and some components of the commensal microbiota. The coexistence of celiac disease with Crohn’s disease is rarely reported in the literature. Here, we report a case of a 13-year-old Syrian male who presented with a history of abdominal pain, anorexia and pallor. CeD and Crohn’s disease was documented on gastrointestinal endoscopy and histological study. The patient was treated with a gluten-free, low fiber, high caloric diet, and a course of oral corticosteroids with an improvement in growth rate and abdominal pain.


2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Bruno Rafael Ramos de Mattos ◽  
Maellin Pereira Gracindo Garcia ◽  
Julia Bier Nogueira ◽  
Lisiery Negrini Paiatto ◽  
Cassia Galdino Albuquerque ◽  
...  

Inflammatory bowel diseases (IBD) are characterized by chronic inflammation of the intestinal tract associated with an imbalance of the intestinal microbiota. Crohn’s disease (CD) and ulcerative colitis (UC) are the most widely known types of IBD and have been the focus of attention due to their increasing incidence. Recent studies have pointed out genes associated with IBD susceptibility that, together with environment factors, may contribute to the outcome of the disease. In ulcerative colitis, there are several therapies available, depending on the stage of the disease. Aminosalicylates, corticosteroids, and cyclosporine are used to treat mild, moderate, and severe disease, respectively. In Crohn’s disease, drug choices are dependent on both location and behavior of the disease. Nowadays, advances in treatments for IBD have included biological therapies, based mainly on monoclonal antibodies or fusion proteins, such as anti-TNF drugs. Notwithstanding the high cost involved, these biological therapies show a high index of remission, enabling a significant reduction in cases of surgery and hospitalization. Furthermore, migration inhibitors and new cytokine blockers are also a promising alternative for treating patients with IBD. In this review, an analysis of literature data on biological treatments for IBD is approached, with the main focus on therapies based on emerging recombinant biomolecules.


2014 ◽  
Vol 86 (9) ◽  
Author(s):  
Aneta Raczkowska ◽  
Michał Ławiński ◽  
Aleksandra Gradowska ◽  
Urszula Zielińska-Borkowska

AbstractOne of the elements of treatment considering inflammatory bowel diseases is nutritional therapy. The duration of the above-mentioned depends on the prevalence of such symptoms as fever, bowel move-ments, length of the functioning gastrointestinal tract, stoma and intestinal fistula presence. Nutritional therapy is an essential element of successful treatment alongside pharmacological, surgical, and biological therapy, as well as other methods. Crohn's disease and ulcerative colitis considered as chronic diseases, lead towards physical and biopsychosocial disability, being responsible for the reduction in the quality of life.was to determine the quality of life after surgical procedures in case of patients diagnosed with Crohn's disease and ulcerative colitis, subjected to natural and parenteral nutrition.The study group comprised 52 patients from the Department of Gastroen-terology, Military Medical Institute, and Department of Surgery and Clinical Nutrition, Clinical Hospital in Warsaw. The study was performed between October, 2011 and April, 2012. The World Health Organization Quality of Life Instrument - Bref (WHOQOL-BREF) questionnaire was used to deter-mine the patients’ quality of life.A lower quality of life was observed in case of patients subjected to parenteral nutrition, poor education, disease symptoms exacerbation, in the majority-rural inhabitants. The quality of life does not depend on gender, type of disease, family status, and additional medical care.


2018 ◽  
pp. 1-6
Author(s):  
Marwah Sami M Hussain ◽  
Bandar Idrees Ali ◽  
Abdullah Alzahrani

Background: Inflammatory bowel diseases are strongly associated with colorectal cancer. In addition, a few cases reported with gastric and small bowel adenocarcinoma in gastroduodenal Crohn’s disease. Case report: We reported a case of a 47-Year-old female, who was referred to our surgical department and after a routine gastroscopy which revealed a lesion. Biopsy confirmed gastric well-differentiated adenocarcinoma of limited gastric Crohn’s disease, for a patient on regular anti Crohn’s medication. The patient underwent varying laparoscopic distal gastrectomy. She received adjuvant chemotherapy treatment and thereafter, she was cancer free within the period of 3- years of regular follow up. Conclusion: The only way to diagnose such lesions of a rare case of gastric cancer in a patient with Crohn’s disease is to regularly carry out upper gastrointestinal examinations. Keywords: Inflammatory bowel diseases, Crohn’s disease, Upper gastrointestinal tract Crohn’s disease, Gastric cancer


2021 ◽  
Vol 41 (1) ◽  
Author(s):  
Kentaro Iwata ◽  
Yohei Mikami ◽  
Motohiko Kato ◽  
Naohisa Yahagi ◽  
Takanori Kanai

AbstractGastrointestinal fibrosis is a state of accumulated biological entropy caused by a dysregulated tissue repair response. Acute or chronic inflammation in the gastrointestinal tract, including inflammatory bowel disease, particularly Crohn’s disease, induces fibrosis and strictures, which often require surgical or endoscopic intervention. Recent technical advances in endoscopic surgical techniques raise the possibility of gastrointestinal stricture after an extended resection. Compared to recent progress in controlling inflammation, our understanding of the pathogenesis of gastrointestinal fibrosis is limited, which requires the development of prevention and treatment strategies. Here, we focus on gastrointestinal fibrosis in Crohn’s disease and post-endoscopic submucosal dissection (ESD) stricture, and we review the relevant literature.


Author(s):  
Alina V. Kupaeva ◽  
Evgenia A. Skornyakova ◽  
Leonid G. Zaslavskii

Acute cerebellitis is a common inflammatory syndrome typically occurring in children and only on very rare occasions in adults. Thus, there was no description of acute cerebellitis, associated with Crohn’s disease, found in Russian sources of literature. We reported a case of acute cerebellitis in 45-year-old woman with a long history of Crohn’s disease treated with Mesalazine as a basic therapy and a resection of ileotransversoanastomosis together with small intestine two months before the onset of neurological symptoms. She first presented with severe headache and left-sided cerebellar dysfunction. The MRI showed signs of pronounced edema of the left hemisphere of the cerebellum, pial Gd-enhancement along the cerebellar folia, difficulty of CSF- flow. The application of lumbar puncture was impeded by the possibility of complications, such as brain herniation. Treatment with high-dose intravenous Methylprednisolone resulted in clinical and radiological improvement. Over the following year, her clinical status remained unchanged, except for one case of epileptic seizures as a result of switching of basic therapy of Crohn’s disease on Adalimumab. In this case, hemicerebellitis most likely has an immune-mediated nature. The temporal relationship with increased activity of Crohn’s disease and a significant positive response to corticosteroid therapy favored this hypothesis. It was known that inflammatory bowel diseases (IBD) had many extra-intestinal manifestations including neurological ones. With regard to that, the alterations in gut microbiota could be a possible common base for systemic inflammatory and autoimmune diseases, such as Crohn’s disease or autoimmune cerebellitis, described in this study.


2020 ◽  
Author(s):  
Shahan Mamoor

Inflammatory bowel diseases (IBD) include Crohn’s Disease and Ulcerative Colitis (1). We mined published microarray data to understand how gene expression in the hematopoietic compartment of patients with Crohn’s Disease is most different from that of healthy controls (2-4). Across two datasets (2, 3), we found that BAFF, also known as the B-lymphocyte stimulator (BLyS), encoded by the gene TNFSF13B (5), was differentially expressed in the blood of patients with Crohn’s Disease . Analysis of a third dataset (4) revealed that BAFF was among the genes most differentially expressed in monocyte-derived macrophages from patients with Crohn’s Disease. Serum BAFF, fecal BAFF, and BAFF expression in the intestinal mucosa has been demonstrated to be increased in patients with IBD (6, 7). We show here that expression of BAFF in the peripheral blood of patients with Crohn’s Disease is also increased.


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