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https://www.readbyqxmd.com/read/29078077/is-epstein-barr-virus-infection-associated-with-the-pathogenesis-of-microscopic-colitis
#1
Aroldo Gabriele Rizzo, Ambrogio Orlando, Elena Gallo, Andrea Bisanti, Stefania Sferrazza, Luigi Maria Montalbano, Fabio Salvatore Macaluso, Mario Cottone
BACKGROUND: Epstein-Barr virus (EBV) has been associated with inflammation in the colon, particularly in patients with inflammatory bowel disease (IBD). Even if a relevant plasmocytosis, similar to IBD, is present in microscopic colitis (MC), the frequency of EBV infection in this setting is unknown. OBJECTIVES: We aimed to compare the frequency of colonic EBV infection in patients with MC, ulcerative colitis (UC), and irritable bowel syndrome (IBS). STUDY DESIGN: The frequency of colonic EBV infection in biopsies of 30 patients with MC, 30 patients with UC, and 30 controls with IBS was retrospectively assessed...
October 20, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29075289/serology-of-viral-infections-and-tuberculosis-screening-in-an-ibd-population-referred-to-a-tertiary-centre-of-southern-italy
#2
Marco Ardesia, Giuseppe Costantino, Placido Mondello, Angela Alibrandi, Walter Fries
BACKGROUND: With the introduction of more potent immunosuppressive agents in inflammatory bowel disease, prevention of opportunistic infections has become necessary by introducing screening programs. Prevalence of the most important infectious agents may vary in different geographical areas. The aim of our study was to assess the immune status for hepatitis B, varicella, mononucleosis, and cytomegalovirus infection together with the determination of the hepatitis C and tuberculosis status in Southern Italy...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29024228/de-novo-hepatocellular-carcinoma-post-multivisceral-transplantation-in-a-child
#3
P Tran, S Zhou, L Wang, M Finegold, L Mascarenas, S Alexopolous, Y Genyk, N Kerkar
De novo hepatocellular carcinoma (HCC) post-transplantation in patients without viral hepatitis is extremely rare, with only three reported adult cases in the English literature. Here, we present a case of de novo HCC that developed in a 7-year-old female, who at 8 months of age received a liver, small bowel, spleen, and pancreas transplantation 6.5 years ago for gastroschisis and total parenteral nutrition (TPN)-related cirrhosis. The post-transplant course was complicated by Epstein-Barr virus (EBV) infection, post-transplant lymphoproliferative disease, and subsequent development of multifocal EBV-associated post-transplant smooth muscle tumors (EBV-PTSMT) in the small bowel 1 year and 10 months after transplantation, respectively...
November 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28902907/pcr-detection-of-human-herpesviruses-in-colonic-mucosa-of-individuals-with-inflammatory-bowel-disease-comparison-with-individuals-with-immunocompetency-and-hiv-infection
#4
COMPARATIVE STUDY
Takayuki Shimada, Naoyoshi Nagata, Koki Okahara, Akane Joya, Tsunefusa Hayashida, Shinichi Oka, Toshiyuki Sakurai, Junichi Akiyama, Naomi Uemura, Hiroyuki Gatanaga
BACKGROUND: Detection of human herpesviruses (HHVs) other than cytomegalovirus (CMV) in colonic mucosa of individuals with inflammatory bowel disease (IBD) remains unknown. This study identified eight HHVs in the colonic mucosa of individuals with IBD and compared the results with immunocompetent and human immunodeficiency virus (HIV)-infected individuals. METHODS: A total of 89 individuals who had colorectal ulcer on colonoscopy were enrolled: 26 with immunocompetency (n = 26), 41 with IBD, and 22 with HIV infection...
2017: PloS One
https://www.readbyqxmd.com/read/28624334/seasonality-and-autoimmune-diseases-the-contribution-of-the-four-seasons-to-the-mosaic-of-autoimmunity
#5
REVIEW
Abdulla Watad, Shir Azrielant, Nicola Luigi Bragazzi, Kassem Sharif, Paula David, Itay Katz, Gali Aljadeff, Mariana Quaresma, Galya Tanay, Mohammad Adawi, Howard Amital, Yehuda Shoenfeld
Autoimmune diseases (ADs) are a heterogeneous groups of diseases that occur as a results of loss of tolerance to self antigens. While the etiopathogeneis remain obscure, different environmental factors were suggested to have a role in the development of autoimmunity, including infections, low vitamin D levels, UV radiation, and melatonin. Interestingly, such factors possess seasonal variation patterns that could influence disease development, severity and progression. Vitamin D levels which reach a nadir during late winter and early spring is correlated with increased disease activity, clinical severity as well as relapse rates in several disease entities including multiple sclerosis (MS), non-cutaneous flares of systemic lupus erythematosus (SLE), psoriasis, and rheumatoid arthritis (RA)...
August 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28617757/looking-into-enteric-virome-in-patients-with-ibd-defining-guilty-or-innocence
#6
Susana Lopes, Patricia Andrade, Silvia Conde, Rodrigo Liberal, Cláudia C Dias, Salomão Fernandes, Jorge Pinheiro, Joana S Simões, Fátima Carneiro, Fernando Magro, Guilherme Macedo
BACKGROUND: Although there is some evidence suggesting that certain viruses may be involved in the onset of inflammatory bowel disease (IBD), data regarding viral prevalence and viral load in blood and mucosa of patients with IBD are scarce. The main aim of this study is to evaluate the prevalence and viral load of common Epstein-Barr virus (EBV), cytomegalovirus (CMV), and human herpes virus 6 in blood and mucosa of adult patients with endoscopic active IBD. METHODS: From January to December 2014, ulcerative colitis and Crohn's disease patients with active endoscopic disease were consecutively enrolled...
August 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28247637/-oncogenetic-factors-of-some-herpesvirus-infection-agents
#7
REVIEW
I V Kosova
Currently, debate continues about the etiological role of pathogens, in particular viruses, in the development of bladder tumors, their impact on the rate of recurrence and invasive and metastatic forms. The literature has reported some evidence for oncomodulating effect of cytomegalovirus in glioblastomas and bowel tumors. There is the possible role of herpes simplex virus (HSV) type 2 as carcinogenesis cofactor that initiates the development of dysplasia and maintains it in a stable condition. Epstein - Barr virus (EBV) from a family of the oncogenic DNA viruses is associated with an increasing range of cancers...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28228435/crohn-s-disease-complicated-by-epstein-barr-virus-driven-haemophagocytic-lymphohistiocytosis-successfully-treated-with-rituximab
#8
Grace Thompson, Dominic Pepperell, Ian Lawrence, Benjamin David McGettigan
We report a case of Epstein-Barr virus (EBV)-driven haemophagocytic lymphohistiocytosis (HLH) in a man with Crohn's disease treated with 6-mercaptopurine and adalimumab therapy who was successfully treated with rituximab therapy alone. This is the first published case in an adult patient with EBV-driven HLH in the setting of thiopurine use and inflammatory bowel disease to be successfully treated with rituximab therapy alone. Here, we will discuss putative immunological mechanisms which may contribute to this potentially life-threatening complication...
February 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/27785332/epstein-barr-virus-positive-diffuse-large-b-cell-lymphoma-involving-the-colon-in-a-patient-with-ulcerative-pancolitis-and-polymyositis-on-long-term-methotrexate-therapy
#9
Michael D Chang, Merry-Jennifer Markham, Xiuli Liu
The link between immunosuppressive therapy and increased lymphoma risk is well established in patients with solid organ transplantation. Epstein-Barr virus-positive (EBV) diffuse large B-cell lymphoma (DLBCL) is known to be a complication in patients receiving methotrexate for rheumatoid arthritis, and the risk of lymphoma in inflammatory bowel disease (IBD) has raised concerns regarding the lymphoproliferative potential of immunomodulatory therapy. In this report, we describe a case of EBV-positive DLBCL arising within the colon of a patient affected by ulcerative pancolitis...
October 2016: Gastroenterology Research
https://www.readbyqxmd.com/read/27782890/pediatric-small-bowel-transplantation-a-single-center-experience-from-turkey
#10
Cem Tuğmen, Maşallah Baran, İsmail Sert, Ayşe Berna Anıl, Eyüp Kebapçı, Sait Murat Doğan, Selçuk Kılınç, Gaye Aydın, Ayşe Gülden Diniz, Mustafa Ölmez, İbrahim Pirim, Cezmi Karaca
BACKGROUND/AIMS: Small bowel transplantation (SBTx) is a treatment option for patients with serious parenteral nutrition-related problems in intestinal failure. İzmir Tepecik Training Research Hospital Organ Transplantation Center is still the only pediatric intestinal transplant center in Turkey. MATERIAL AND METHODS: This study was approved by the local ethics committee. Patients' data were analyzed from the medical charts and the hospital digital database. Seven isolated SBTxs were performed in six children between 2010 and 2016...
September 2016: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/27582272/allograft-biopsy-findings-in-patients-with-small-bowel-transplantation
#11
Jamie Koo, David W Dawson, Sarah Dry, Samuel W French, Bita V Naini, Hanlin L Wang
In this study, we sought to determine the incidence of posttransplant complications including acute cellular rejection (ACR), infection, and posttransplant lymphoproliferative disease (PTLD) in mucosal allograft biopsies in patients with small bowel transplant at our institution. We retrospectively reviewed pathology reports from 5675 small bowel allograft biopsies from 99 patients and analyzed the following: indications for biopsy, frequency and grade of ACR, presence of infectious agents, results of work-up for potential PTLD, results of C4d immunohistochemistry (IHC), features of chronic mucosal injury, and findings in concurrent native bowel biopsies...
September 1, 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/27554218/a-case-of-ulcerative-colitis-following-acute-hepatitis-induced-by-epstein-barr-virus-infection
#12
Seung Hyun Oh, Chan Ran You, Eun Ok Kim, Si Hyun Bae, Jong Young Choi, Seung Kew Yoon, Sang Wook Choi
Epstein-Barr virus (EBV) infection varies in its clinical manifestations and severity. EBV can be a causative agent of hepatitis and may have a role in the pathogenesis of chronic autoimmune diseases including inflammatory bowel disease. A 24-year-old woman was admitted to our hospital, presenting with fever and elevated liver enzymes. She was diagnosed with acute hepatitis and EBV infection according to serologic tests and liver biopsy. Within two months, she was re-admitted to our hospital, presenting with hematochezia and lower abdominal pain...
August 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/27416006/how-genetic-testing-can-lead-to-targeted-management-of-xiap-deficiency-related-inflammatory-bowel-disease
#13
REVIEW
Ole Haagen Nielsen, Eric Charles LaCasse
X-linked lymphoproliferative disease type 2 (XLP-2, OMIM 300635) is a primary immunodeficiency caused by the loss of X chromosome-linked inhibitor of apoptosis (XIAP), the X-linked inhibitor of apoptosis gene at Xq25. XLP-2 individuals are susceptible to several specific and potentially fatal infections, such as Epstein-Barr virus (EBV). Children with XIAP-related XLP-2 may present with either familial hemophagocytic lymphohistiocytosis, often triggered in response to EBV infection, or with a treatment-refractory severe pediatric form of inflammatory bowel disease (IBD) that might be diagnosed as Crohn disease...
July 14, 2016: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/27106672/systemic-delivery-of-il-27-by-an-adeno-associated-viral-vector-inhibits-t-cell-mediated-colitis-and-induces-multiple-inhibitory-pathways-in-t-cells
#14
Xiaotong Zhu, Zhihao Liu, Jin-Qing Liu, Jianmin Zhu, Jianchao Zhang, Jonathan P Davis, Jianhong Chu, Jianhua Yu, Jie Zhou, Ming-Song Li, Xue-Feng Bai
IL-27 is a heterodimeric cytokine that is composed of two subunits, i.e., EBV-induced gene 3 and IL-27p28 (also known as IL-30). Although the role of endogenous IL-27 in the pathogenesis of autoimmune colitis, an experimental model of human inflammatory bowel disease, remains controversial, IL-27 local delivery has been shown to inhibit autoimmune colitis. IL-30 has been shown to inhibit Th1 and Th17 responses and is considered a potential therapeutic for certain autoimmune diseases. In this study, we have compared the therapeutic efficacy of adeno-associated viral vector-delivered IL-27 and IL-30 in a murine model of autoimmune colitis...
August 2016: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/27093448/ebv-associated-peripheral-t-cell-lymphoma-of-gastrointestinal-tract-presented-with-widespread-chronic-inflammation-a-case-report
#15
Guldeep Uppal, Alaina Chodoff, Zi-Xuan Wang, Jeffrey P Baliff, Marina Domingo-Vidal, Ubaldo E Martinez-Outschoorn, Dennis P O'Malley, Jerald Z Gong
We report a case of Epstein-Barr virus (EBV)-associated T-cell lymphoma of gastrointestinal (GI) tract from a 70-year-old white woman who initially presented with a widespread GI inflammation and gastric obstruction. Initial biopsies of the GI tract showed severe chronic inflammation in the esophagus, stomach, and the small intestine. Celiac disease and inflammatory bowel disease were ruled out. The patient was treated with partial gastrectomy. Histology showed gastric wall thickening with EBV-positive, mixed lymphocytic and plasma cell infiltration in the mucosa, and thickening and fibrosis of the submucosa...
January 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27015206/a-case-report-of-nk-cell-lymphoproliferative-disease-with-a-wide-involvement-of-digestive-tract-develop-into-epstein-barr-virus-associated-nk-t-cell-lymphoma-in-an-immunocompetent-patient
#16
Haotian Chen, Yu Zhang, Zhinong Jiang, Wei Zhou, Qian Cao
Epstein-Barr virus (EBV) plays an important role in various diseases. EBV-associated lymphoproliferative disease (LPD) is a rare disease with a canceration tendency. It is difficult to differentiate LPD with involvement of digestive tract from Crohn disease due to similar clinical and endoscopic manifestations. We present a case report of multiple ulcers with esophagus, small bowel and the entire colon involved, proved to be NK-Cell LPD, developed into EBV-associated NK/T Cell lymphoma, in an immunocompetent man who was initially misdiagnosed as Crohn disease...
March 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/26844502/epstein-barr-virus-positive-t-nk-cell-lymphoproliferative-disorders-manifested-as-gastrointestinal-perforations-and-skin-lesions-a-case-report
#17
Hai-Juan Xiao, Ji Li, Hong-Mei Song, Zheng-Hong Li, Mei Dong, Xiao-Ge Zhou
Systemic Epstein-Barr virus (EBV)-positive T-cell lymphoproliferative disorders (LPDs) of childhood is a highly aggressive EBV-positive T/natural killer (NK)-cell LPD, which emerges in the background of chronic active EBV infection (CAEBV) or shortly after primary acute EBV infection. The clinical presentations of CAEBV are varied; patients with atypical manifestations are easily misdiagnosed. We described a 14-year-old boy suffering from digestive disorders and intermittent fever for 1 year and 9 months, whose conditions worsened and skin lesions occurred 2 months before hospitalization...
February 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/26659090/differential-cellular-localization-of-epstein-barr-virus-and-human-cytomegalovirus-in-the-colonic-mucosa-of-patients-with-active-or-quiescent-inflammatory-bowel-disease
#18
Rachele Ciccocioppo, Francesca Racca, Luigia Scudeller, Antonio Piralla, Pietro Formagnana, Lodovica Pozzi, Elena Betti, Alessandro Vanoli, Roberta Riboni, Peter Kruzliak, Fausto Baldanti, Gino Roberto Corazza
The role of human cytomegalovirus (HCMV) and Epstein-Barr virus (EBV) in the exacerbation of inflammatory bowel disease (IBD) is still uncertain. We prospectively investigated the presence of EBV and HCMV infection in both epithelial and immune cells of colonic mucosa of IBD patients, both refractory and responders to standard therapies, in comparison with patients suffering from irritable bowel syndrome who were considered as controls, by using quantitative real-time polymerase chain reaction, immunohistochemistry and in situ hybridization, in an attempt to assess viral localization, DNA load, life cycle phase and possible correlation with disease activity indexes...
February 2016: Immunologic Research
https://www.readbyqxmd.com/read/26600976/lymphoproliferative-disorders-in-inflammatory-bowel-disease-patients-on-immunosuppression-lessons-from-other-inflammatory-disorders
#19
REVIEW
Grace Y Lam, Brendan P Halloran, Anthea C Peters, Richard N Fedorak
Immunosuppressive agents, such as thiopurines, methotrexate, and biologics, have revolutionized the treatment of inflammatory bowel disease (IBD). However, a number of case reports, case control studies and retrospective studies over the last decade have identified a concerning link between immunosuppression and lymphoproliferative disorders (LPDs), the oncological phenomenon whereby lymphocytes divide uncontrollably. These LPDs have been associated with Epstein-Barr virus (EBV) infection in which the virus provides the impetus for malignant transformation while immunosuppression hampers the immune system's ability to detect and clear these malignant cells...
November 15, 2015: World Journal of Gastrointestinal Pathophysiology
https://www.readbyqxmd.com/read/26307954/anti-tnf%C3%AE-therapy-for-inflammatory-bowel-diseases-is-associated-with-epstein-barr-virus-lytic-activation
#20
Sameer Lapsia, Siva Koganti, Salvatore Spadaro, Ramona Rajapakse, Anupama Chawla, Sumita Bhaduri-McIntosh
Anti-TNFα therapy, known to suppress T-cell immunity, is increasingly gaining popularity for treatment of autoimmune diseases including inflammatory bowel diseases (IBD). T-cell suppression increases the risk of B-cell EBV-lymphoproliferative diseases and lymphomas. Since EBV-lytic activation is essential for development of EBV-lymphomas and there have been reports of EBV-lymphomas in patients treated with anti-TNFα therapy, we investigated if patients treated with anti-TNFα antibodies demonstrate greater EBV-lytic activity in blood...
February 2016: Journal of Medical Virology
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