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Onisor D, Brusnic O, Mocan S, Stoian M, Avram C, Boicean A, Dobru D. Cytomegalovirus in Ulcerative Colitis: An Unwanted "Guest". Pathogens 2024; 13:650. [PMID: 39204250 PMCID: PMC11356953 DOI: 10.3390/pathogens13080650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 07/23/2024] [Accepted: 07/30/2024] [Indexed: 09/03/2024] Open
Abstract
The role of cytomegalovirus (CMV) in the flare-up of ulcerative colitis (UC) is not clearly understood. CMV can cause similar symptoms in different clinical contexts, which may be attributed to the natural evolution of the viral infection, the patient's immune status, or its association with inflammatory bowel disease (IBD). This study aims to delineate the diverse manifestations of CMV-related lesions from clinical, endoscopic, and histopathological perspectives, alongside a brief narrative review of the literature. In managing IBD patients, it is crucial to be vigilant for signs of CMV reactivation, especially before the initiation of more intensive therapies.
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Affiliation(s)
- Danusia Onisor
- Department of Internal Medicine VII, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu Street No. 38, 540139 Targu Mures, Romania; (D.O.); (D.D.)
- Gastroenterology Department, Mureș County Clinical Hospital, 540103 Targu Mures, Romania
| | - Olga Brusnic
- Department of Internal Medicine VII, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu Street No. 38, 540139 Targu Mures, Romania; (D.O.); (D.D.)
- Gastroenterology Department, Mureș County Clinical Hospital, 540103 Targu Mures, Romania
| | - Simona Mocan
- Pathology Department, Emergency County Hospital, 540136 Targu Mures, Romania;
| | - Mircea Stoian
- Department of Anesthesiology and Intensive Care, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540139 Targu Mures, Romania;
| | - Calin Avram
- Department of Medical Informatics and Biostatistics, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu Street No. 38, 540139 Targu Mures, Romania
| | - Adrian Boicean
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania;
| | - Daniela Dobru
- Department of Internal Medicine VII, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu Street No. 38, 540139 Targu Mures, Romania; (D.O.); (D.D.)
- Gastroenterology Department, Mureș County Clinical Hospital, 540103 Targu Mures, Romania
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Jagirdhar GSK, Surani S. Non-clostridium difficile induced pseudomembranous colitis. World J Clin Cases 2023; 11:979-988. [PMID: 36874439 PMCID: PMC9979294 DOI: 10.12998/wjcc.v11.i5.979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/09/2023] [Accepted: 01/20/2023] [Indexed: 02/14/2023] Open
Abstract
Pseudomembranous colitis is severe inflammation of the inner lining of the colon due to anoxia, ischemia, endothelial damage, and toxin production. The majority of cases of pseudomembranous colitis are due to Clostridium difficile. However, other causative pathogens and agents have been responsible for causing a similar pattern of injury to the bowel with the endoscopic appearance of yellow-white plaques and membranes on the mucosal surface of the colon. Common presenting symptoms and signs include crampy abdominal pain, nausea, watery diarrhea that can progress to bloody diarrhea, fever, leukocytosis, and dehydration. Negative testing for Clostridium difficile or failure to improve on treatment should prompt evaluation for other causes of pseudomembranous colitis. Bacterial infections other than Clostridium difficile, Viruses such as cytomegalovirus, parasitic infections, medications, drugs, chemicals, inflammatory diseases, and ischemia are other differential diagnoses to look out for in pseudomembranous colitis. Complications of pseudomembranous colitis include toxic megacolon, hypotension, colonic perforation with peritonitis, and septic shock with organ failure. Early diagnosis and treatment to prevent progression are important. The central perspective of this paper is to provide a concise review of the various etiologies for pseudomembranous colitis and management per prior literature.
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Affiliation(s)
| | - Salim Surani
- Department of Pulmonary, Critical Care & Pharmacy, Texas A&M University, Kingsville, TX 78363, United States
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Elbadry M, Medhat MA, Zaky S, El Kassas M. Ulcerative Colitis as a Possible Sequela of COVID-19 Infection: The Endless Story. Arab J Gastroenterol 2022; 23:134-137. [PMID: 35473685 PMCID: PMC8828424 DOI: 10.1016/j.ajg.2022.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 12/02/2021] [Accepted: 01/27/2022] [Indexed: 01/08/2023]
Abstract
The coronavirus disease 2019 (COVID-19), caused by the novel coronavirus SARS-CoV-2, is a new type of acute infectious respiratory syndrome that usually presents with mild flu-like symptoms. However, the disease caused widespread illness and death worldwide, and new sequelae are still being discovered. SARS-CoV-2 RNA was isolated from the fecal samples of some infected patients. Many pathogens, including many viral infections, were linked either to the onset or the exacerbation of inflammatory bowel disease (IBD). With this, we report a series of 2 IBD cases that were diagnosed shortly after recovery from COVID-19. This is the first report that discusses the possibility of developing IBD following COVID-19 infection to the best of our knowledge. This could highlight the importance of thoroughly investigating COVID-19 patients who presented with diarrhea, particularly those with bloody diarrhea, and not consider it a simple manifestation of COVID-19 infection.
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Chua YY, Ho QY, Ngo NT, Krishnamoorthy TL, Thangaraju S, Kee T, Wong HM. Cytomegalovirus-associated pseudomembranous colitis in a kidney transplant recipient. Transpl Infect Dis 2021; 23:e13694. [PMID: 34288307 DOI: 10.1111/tid.13694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/02/2021] [Accepted: 06/29/2021] [Indexed: 01/03/2023]
Abstract
Pseudomembranous colitis (PMC) is classically associated with Clostridium difficile infection. We report a rare case of cytomegalovirus (CMV)-associated PMC in a 52-year-old female patient who had undergone kidney transplantation more than 20 years ago and was on low dose prednisolone and ciclosporin. She presented with an acute history of fever, lethargy, vomiting and diarrhoea on admission. Computed tomography of the abdomen showed extensive colitis, and colonoscopy revealed extensive pseudomembrane formation. Multiple tests for Clostridium difficile and other common microbiological causes of colitis were negative. CMV DNAemia and colonic biopsies confirmed the diagnosis of CMV colitis. The patient responded to prompt CMV treatment, as demonstrated by clinical, endoscopic, and histological response. While CMV is a common pathogen in the solid organ transplant population that is familiar to most transplant physicians, it may present atypically as PMC. Here, we review the literature on CMV-associated PMC and its relevance to solid organ transplant recipients. To our knowledge, this is the first reported case of CMV-associated PMC in a kidney transplant recipient.
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Affiliation(s)
- Yi Yi Chua
- Department of Renal Medicine, Singapore General Hospital, Singapore
| | - Quan Yao Ho
- Department of Renal Medicine, Singapore General Hospital, Singapore.,SingHealth-Duke NUS Transplant Centre, SingHealth, Singapore
| | - Nye Thane Ngo
- Department of Anatomical Pathology, Singapore General Hospital, Singapore
| | - Thinesh Lee Krishnamoorthy
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore.,SingHealth-Duke NUS Transplant Centre, SingHealth, Singapore
| | - Sobhana Thangaraju
- Department of Renal Medicine, Singapore General Hospital, Singapore.,SingHealth-Duke NUS Transplant Centre, SingHealth, Singapore
| | - Terence Kee
- Department of Renal Medicine, Singapore General Hospital, Singapore.,SingHealth-Duke NUS Transplant Centre, SingHealth, Singapore
| | - Hei Man Wong
- Department of Infectious Diseases, Singapore General Hospital, Singapore
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Luangsirithanya P, Treewaree S, Pongpaibul A, Pausawasdi N, Limsrivilai J. Cytomegalovirus enterocolitis with subsequent diagnosis of coexisting new-onset inflammatory bowel disease: Two case reports and review of the literature. Medicine (Baltimore) 2021; 100:e24914. [PMID: 33663126 PMCID: PMC7909229 DOI: 10.1097/md.0000000000024914] [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] [Received: 11/28/2020] [Accepted: 02/04/2021] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Gastrointestinal (GI) cytomegalovirus (CMV) infection coexisting with or followed by a diagnosis of inflammatory bowel disease (IBD) is infrequently reported. Not recognizing this condition may delay IBD diagnosis in patients with GI-CMV disease who do not or partially respond to antiviral agents, which could consequently result in unsatisfied treatment outcomes. PATIENT CONCERNS Two immunocompetent patients with no known underlying GI conditions presented with acute bloody diarrhea. The first patient developed diarrhea and hematochezia after admission to intensive care unit (ICU) because of severe alcoholic pancreatitis for 10 days duration. Computed tomography abdomen showed segmental jejunal thickening. The other patient presented with a 1-week history of severe bloody diarrhea which required ICU admission. Colonoscopy showed multiple ulcers along terminal ileum and colon. DIAGNOSIS These 2 patients were initially diagnosed with CMV jejunitis and ileocolitis, respectively, based on endoscopic and histopathologic findings. Both had partial response to treatment with 3 weeks of intravenous ganciclovir. Crohn disease was suspected because of persistent ulcerations on the follow-up endoscopy with the presence of pathological features of chronic inflammation and disappearance of previously detected CMV-infected cells. INTERVENTION Both patients were treated with systemic corticosteroids and azathioprine. OUTCOMES Both patients had complete clinical improvement. Prednisolone could be tapered off in 6 months. Follow-up video capsule endoscopy (VCE) at 6 months showed improvement of mucosal inflammation and ulcers, but neither were completely healed in the first patient. Follow-up colonoscopy at 6 months showed complete resolution of ulcers and inflammation in the second patient. LESSONS IBD should be suspected in patients with a diagnosis of GI-CMV disease who are immunocompetent and have a partial response to antiviral agents. This clinical scenario could be caused by either CMV infection activating immune response resulting in IBD onset, or CMV infection superimposed on pre-existing latent IBD.
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Affiliation(s)
| | | | - Ananya Pongpaibul
- Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Chiba M, Tsuji T, Komatsu M, Watanabe H, Takahashi M. Ulcerative colitis in the postpartum period. AUTOPSY AND CASE REPORTS 2020; 10:e2020187. [PMID: 33344315 PMCID: PMC7703396 DOI: 10.4322/acr.2020.187] [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] [Indexed: 11/23/2022] Open
Abstract
We describe a scarcely reported case in which ulcerative colitis (UC) occurred in the postpartum period. The aims of this case report are to reinforce the recent assertion that a diet is a ubiquitous environmental factor in inflammatory bowel disease (IBD) and that a plant-based diet (PBD) is recommended for IBD. A 29-year-old woman normally delivered her first child. She first noticed bloody diarrhea 4.5 months after delivery. She was diagnosed with UC (left-sided colitis, moderate severity). Sulfasalazine induced remission. She then experienced and learned about PBD during an educational hospitalization. She resumed breast-feeding and stopped medication. An interview and questionnaire revealed a change in her diet 3 months after delivery, from a sound diet (plant-based diet score: 25) to an unhealthy diet (score: 9). It happened along with a change in residence, from her parent's home where her mother prepared traditional Japanese meals to her home where she prepared meals by herself. A feeling of release from childbirth prompted her to eat sweets and cheese despite being aware that the quality of the meals deteriorated. We described a scarcely reported case in which UC occurred in the postpartum period. It happened along with a change in her diet, from a sound diet to an unhealthy diet due to a feeling of release from childbirth. She replaced an omnivorous diet by PBD and stopped medication. The critical role of diet is largely ignored by healthcare professionals. We believe that greater appreciation of diet will change and improve management of IBD.
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Affiliation(s)
- Mitsuro Chiba
- Akita City Hospital, Division of Gastroenterology. Akita City, Japan
| | - Tsuyotoshi Tsuji
- Akita City Hospital, Division of Gastroenterology. Akita City, Japan
| | - Masafumi Komatsu
- Akita City Hospital, Division of Gastroenterology. Akita City, Japan
| | - Hiroyuki Watanabe
- Akita Kosei Medical Center, Division of Gastroenterology. Akita city, Japan
| | - Masato Takahashi
- Akita Kosei Medical Center, Division of Pathology, Akita City, Japan
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Cytomegalovirus and Inflammatory Bowel Diseases (IBD) with a Special Focus on the Link with Ulcerative Colitis (UC). Microorganisms 2020; 8:microorganisms8071078. [PMID: 32698383 PMCID: PMC7409252 DOI: 10.3390/microorganisms8071078] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/10/2020] [Accepted: 07/12/2020] [Indexed: 12/16/2022] Open
Abstract
Cytomegalovirus (CMV) infects approximately 40% of adults in France and persists lifelong as a latent agent in different organs, including gut. A close relationship is observed between inflammation that favors viral expression and viral replication that exacerbates inflammation. In this context, CMV colitis may impact the prognosis of patients suffering from inflammatory bowel diseases (IBDs), and notably those with ulcerative colitis (UC). In UC, the mucosal inflammation and T helper cell (TH) 2 cytokines, together with immunomodulatory drugs used for controlling flare-ups, favor viral reactivation within the gut, which, in turn, increases mucosal inflammation, impairs corticoid and immunosuppressor efficacy (the probability of steroid resistance is multiplied by more than 20 in the case of CMV colitis), and enhances the risk for colectomy. This review emphasizes the virological tools that are recommended for exploring CMV colitis during inflammatory bowel diseases (IBD) and underlines the interest of using ganciclovir for treating flare-ups associated to CMV colitis in UC patients.
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Chiba M, Tsuji T, Nakane K, Tsuda S, Ishii H, Ohno H, Obara Y, Komatsu M, Tozawa H. High Remission Rate with Infliximab and Plant-Based Diet as First-Line (IPF) Therapy for Severe Ulcerative Colitis: Single-Group Trial. Perm J 2020; 24:1-10. [PMID: 33482946 DOI: 10.7812/tpp/19.166] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION About one-third of patients with severe ulcerative colitis (UC) do not respond to corticosteroid therapy and receive rescue therapy with infliximab or cyclosporine. Up to 20% of such patients fail to respond to rescue therapy and undergo colectomy. OBJECTIVE We investigated the outcomes of infliximab and a plant-based diet (PBD) as first-line therapy for severe UC. METHODS Patients with severe UC defined by the Truelove and Witts criteria were admitted and given standard induction therapy with infliximab (5.0 mg/kg-7.5 mg/kg) at 0, 2, and 6 weeks. Additionally, they received a PBD. The primary endpoint was remission or colectomy in the induction phase and 1 year after discharge. Secondary endpoints were changes in inflammatory markers in the induction phase and the PBD score at baseline and follow-up. A higher PBD score indicates greater adherence to a PBD. RESULTS Infliximab and PBD as first-line therapy was administered in 17 cases. The remission rate was 76% (13/17), and the colectomy rate was 6% (1/17) in the induction phase. C-reactive protein values and the erythrocyte sedimentation rate significantly decreased at week 6 from 9.42 mg/dL to 0.33 mg/dL and from 59 to 17 mm/h, respectively (p < 0.0001). At 1-year follow-up, the cumulative relapse rate was 25%, and there were no additional colectomy cases. Mean PBD scores of 27.7 at 1 year and 23.8 at 4 years were significantly higher than baseline scores of 8.3 and 9.9, respectively (p < 0.0001 and p = 0.0391). CONCLUSION This new first-line therapy for severe UC demonstrated a higher remission rate and lower colectomy rate than with the current modality.
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Affiliation(s)
- Mitsuro Chiba
- Gastroenterology Division, Akita City Hospital, Akita, Japan
| | | | - Kunio Nakane
- Gastroenterology Division, Akita City Hospital, Akita, Japan
| | - Satoko Tsuda
- Gastroenterology Division, Akita City Hospital, Akita, Japan
| | - Hajime Ishii
- Gastroenterology Division, Akita City Hospital, Akita, Japan
| | - Hideo Ohno
- Gastroenterology Division, Akita City Hospital, Akita, Japan
| | - Yu Obara
- Gastroenterology Division, Akita City Hospital, Akita, Japan
| | | | - Haruhiko Tozawa
- Gastroenterology Division, Nakadori General Hospital, Akita, Japan
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Thörn M, Rorsman F, Rönnblom A, Sangfelt P, Wanders A, Eriksson BM, Bondeson K. Active cytomegalovirus infection diagnosed by real-time PCR in patients with inflammatory bowel disease: a prospective, controlled observational study (.). Scand J Gastroenterol 2016; 51:1075-80. [PMID: 27142339 DOI: 10.3109/00365521.2016.1156154] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE It is assumed that cytomegaloviral (CMV) infection in inflammatory bowel disease (IBD) is caused by reactivation due to the immunosuppressive therapy, but the role of CMV as a pathophysiological factor and prognostic marker in IBD is unclear. The aim of this study was to investigate CMV infection in IBD, with real-time polymerase chain reaction (PCR) and immunohistochemistry, with emphasis on newly diagnosed disease. MATERIALS AND METHODS In this prospective, controlled study, 67 patients with IBD and 34 control patients with irritable bowel syndrome (IBS) or rectal bleeding were included. Serology for CMV was analysed along with CMV DNA in plasma, mucosal biopsies, and faeces. Mucosal biopsies were further analysed with histopathology and CMV immunohistochemistry. RESULTS Detection of CMV IgM was more common in patients with IBD, compared to controls, 21% versus 3%. CMV DNA was found in 16% of patients with newly diagnosed, untreated IBD and in 38% of steroid-treated patients. Four of the five patients that needed urgent surgery were CMV-DNA positive in at least one of three sample types. None of the controls had detectable CMV DNA. CONCLUSIONS Active CMV infection was found in high proportions of newly diagnosed untreated patients with IBD, in patients on immunosuppression and in patients in the need of surgery. Low CMV-DNA levels in non-immunosuppressed patients were not a risk factor for the development of more severe IBD, while the detection of CMV DNA in patients on immunosuppressive therapy may foresee disease progression.
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Affiliation(s)
- Mari Thörn
- a Department of Medical Sciences, Section of Gastroenterology and Hepatology , Uppsala University , Uppsala , Sweden
| | - Fredrik Rorsman
- a Department of Medical Sciences, Section of Gastroenterology and Hepatology , Uppsala University , Uppsala , Sweden
| | - Anders Rönnblom
- a Department of Medical Sciences, Section of Gastroenterology and Hepatology , Uppsala University , Uppsala , Sweden
| | - Per Sangfelt
- a Department of Medical Sciences, Section of Gastroenterology and Hepatology , Uppsala University , Uppsala , Sweden
| | - Alkwin Wanders
- b Department of Immunology, Genetics and Pathology , Uppsala University , Uppsala , Sweden
| | - Britt-Marie Eriksson
- c Department of Medical Sciences, Section of Infectious Diseases , Uppsala University , Uppsala , Sweden
| | - Kåre Bondeson
- d Department of Medical Sciences, Clinical Microbiology and Infectious Medicine , Uppsala University , Uppsala , Sweden
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Pillet S, Pozzetto B, Roblin X. Cytomegalovirus and ulcerative colitis: Place of antiviral therapy. World J Gastroenterol 2016; 22:2030-2045. [PMID: 26877608 PMCID: PMC4726676 DOI: 10.3748/wjg.v22.i6.2030] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/19/2015] [Accepted: 12/21/2015] [Indexed: 02/06/2023] Open
Abstract
The link between cytomegalovirus (CMV) infection and inflammatory bowel diseases remains an important subject of debate. CMV infection is frequent in ulcerative colitis (UC) and has been shown to be potentially harmful. CMV reactivation needs to be diagnosed using methods that include in situ detection of viral markers by immunohistochemistry or by nucleic acid amplification techniques. Determination of the density of infection using quantitative tools (numbers of infected cells or copies of the genome) is particularly important. Although CMV reactivation can be considered as an innocent bystander in active flare-ups of refractory UC, an increasing number of studies suggest a deleterious role of CMV in this situation. The presence of colonic CMV infection is possibly linked to a decreased response to steroids and other immunosuppressive agents. Some treatments, notably steroids and cyclosporine A, have been shown to favor CMV reactivation, which seems not to be the case for therapies using anti-tumor necrosis factor drugs. According to these findings, in flare-ups of refractory UC, it is now recommended to look for the presence of CMV reactivation by using quantitative tools in colonic biopsies and to treat them with ganciclovir in cases of high viral load or severe disease.
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Affiliation(s)
- Priya D Farooq
- University of Maryland Medical Center (Department of Medicine, Division of Gastroenterology and Hepatology), Baltimore, Maryland; National Institutes of Health (National Institute of Diabetes and Digestive and Kidney Diseases), Bethesda, Maryland; Veterans Affairs Maryland Health Center System (Veterans Affairs), Baltimore, Maryland
| | - Nathalie H Urrunaga
- University of Maryland Medical Center (Department of Medicine, Division of Gastroenterology and Hepatology), Baltimore, Maryland; National Institutes of Health (National Institute of Diabetes and Digestive and Kidney Diseases), Bethesda, Maryland; Veterans Affairs Maryland Health Center System (Veterans Affairs), Baltimore, Maryland
| | - Derek M Tang
- University of Maryland Medical Center (Department of Medicine, Division of Gastroenterology and Hepatology), Baltimore, Maryland; National Institutes of Health (National Institute of Diabetes and Digestive and Kidney Diseases), Bethesda, Maryland; Veterans Affairs Maryland Health Center System (Veterans Affairs), Baltimore, Maryland
| | - Erik C von Rosenvinge
- University of Maryland Medical Center (Department of Medicine, Division of Gastroenterology and Hepatology), Baltimore, Maryland; National Institutes of Health (National Institute of Diabetes and Digestive and Kidney Diseases), Bethesda, Maryland; Veterans Affairs Maryland Health Center System (Veterans Affairs), Baltimore, Maryland
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12
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Tafvizi F, Fard ZT. Detection of human cytomegalovirus in patients with colorectal cancer by nested-PCR. Asian Pac J Cancer Prev 2014; 15:1453-7. [PMID: 24606482 DOI: 10.7314/apjcp.2014.15.3.1453] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The association of colorectal cancer with human cytomegalovirus (HCMV) is a controversial issue in cancer research. This study aimed to identify the HCMV virus in colorectal cancer tissues and to investigate the association of HCMV with colorectal cancer. In this study, 50 cancer tissue samples and 50 samples without colon cancer were studied in order to identify the HCMV virus through nested-polymerase chain reaction. The virus was identified in 15 cases of colorectal cancer tissues (15/50) and in 5 cases of normal tissues (5/50). Eight cases of adenocarcinoma tissues were in a moderately differentiated stage, and 7 cases had well-differentiated stage tissues that were positive for viral DNA. The findings were statistically evaluated at a significance level of p<0.05. The HCMV virus could play a role in creating malignancy and the progress of cancer through the process of oncomodulation.
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Louazon T, Collardeau S, Lachaux A. [Cytomegalovirus colitis in an immunocompetent child]. Arch Pediatr 2014; 21:1016-9. [PMID: 24997060 DOI: 10.1016/j.arcped.2014.05.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/03/2013] [Accepted: 05/12/2014] [Indexed: 11/15/2022]
Abstract
Cytomegalovirus (CMV) colitis is uncommon in young infants. Here we report a case of a 10-week-old breastfed infant admitted to the emergency room for rectal bleeding. He had had stools streaked with red blood for four days, was in good general condition, and was apyretic. Blood count, C-reactive protein, stool bacteriology and virology, abdominal X-ray examination, and abdominal ultrasounds did not reveal any abnormality. Cow's milk protein allergy was suggested despite the negativity of specific immunoglobulins E (IgE) and a diet excluding cow's milk protein was initiated in the mother. In a context of persistent rectal bleeding and good general condition, an endoscopic examination found diffuse hemorrhagic colitis and an erythematous aspect of the fundus. CMV was revealed by histological examination (typical cytopathic effect and immunostaining) and high viral load in the blood. The patient's immune balance was normal and the mother did not have any form of CMV infection. The diagnosis of primary CMV infection was retained in this immunocompetent child. Rectal bleeding disappeared without specific antiviral treatment. This observation points out that with rectal bleeding in an infant, cow's milk protein allergy should not be the only cause considered.
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Affiliation(s)
- T Louazon
- Service de gastroentérologie, hépatologie et nutrition pédiatriques, université de Lyon 1, hospices civils de Lyon, hôpital Femme Mère-Enfant du CHU de Lyon, 59, boulevard Pinel, 69677 Bron cedex, France.
| | - S Collardeau
- Centre de biologie et de pathologie Est, hospices civils de Lyon, 59, boulevard Pinel, 69677 Bron cedex, France
| | - A Lachaux
- Service de gastroentérologie, hépatologie et nutrition pédiatriques, université de Lyon 1, hospices civils de Lyon, hôpital Femme Mère-Enfant du CHU de Lyon, 59, boulevard Pinel, 69677 Bron cedex, France
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14
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Tanaka T, Sugie S. Recent advances in pathobiology and histopathological diagnosis of inflammatory bowel disease. ACTA ACUST UNITED AC 2013. [DOI: 10.7243/2052-7896-1-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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