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https://www.readbyqxmd.com/read/29211811/challenges-in-the-diagnosis-of-ulcerative-colitis-with-concomitant-bacterial-infections-and-chronic-infectious-colitis
#1
Wei-Chen Lin, Chen-Wang Chang, Ming-Jen Chen, Cheng-Hsin Chu, Shou-Chuan Shih, Tzu-Chi Hsu, Horng-Yang Wang
Ulcerative colitis (UC) is a chronic inflammation of the large bowel characterized by diarrhea and a negative stool culture. However, several enteropathogens have been implicated as causative agents in UC. The differentiation between chronic infectious colitis (IC) and UC with concurrent infection is difficult owing to their similar clinical presentations. The study aimed to explore the presentations and diagnostic clues that enable differentiation between UC with concomitant infections and chronic IC. The study included 17 UC patients with a bacterial infection and 46 with chronic IC...
2017: PloS One
https://www.readbyqxmd.com/read/29208963/enhanced-cd25-foxp3-regulatory-t-cell-development-by-amodiaquine-through-activation-of-nuclear-receptor-4a
#2
Hee Yeon Won, Ji Hyun Shin, Sera Oh, Hana Jeong, Eun Sook Hwang
CD4+ T cells play key roles in the regulation of immune responses against pathogenic infectious antigens via development into effector T helper and induced regulatory T (iTreg) cells. Particularly, CD4+CD25+Foxp3+ iTreg cells are crucial for maintaining immune homeostasis and controlling inflammatory diseases. Anti-inflammatory drugs that enhance iTreg cell generation would be effective at preventing and treating inflammatory and autoimmune diseases. In this study, we examined whether anti-malarial and anti-arthritic amodiaquine (AQ) could affect iTreg cell development...
December 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29196305/multiple-simultaneous-infections-in-a-patient-with-well-controlled-hiv-when-occam-s-razor-fails
#3
Miranda Sherley, Sarah Jane Martin
Multiple concurrent infectious processes have previously been reported in the context of advanced HIV with significant immunosuppression. Here we report a case of multiple infections in a 56-year-old man with well-controlled HIV diagnosed 5 years earlier. Soon after returning to Australia following 12 years living in Thailand, he became unwell with fevers, night sweats, arthralgia and myalgia. There were no localising symptoms and examination was unremarkable. Investigations revealed positive syphilis (Treponema pallidum) serology with an RPR of 16, a positive urine culture (Klebsiella pneumoniae), a pulmonary nodule, a liver abscess and colitis (Entamoeba histolytica)...
December 1, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29167716/oral-manifestations-of-gastrointestinal-disorders
#4
REVIEW
Martin Jajam, Patricia Bozzolo, Sven Niklander
Background: A considerable number of gastrointestinal disorders (GIDs) of varied nature (inflammatory, infectious, genetic and other etiology) may produce alterations in the hard and soft oral tissues. Among these are Crohn's disease, ulcerative colitis, celiac and gastroesophageal reflux disease. Material and Methods: Article search was done using the National library of medicine (PubMed) database using different search terms and analyzed according to their importance...
October 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29126502/clinical-presentation-of-crohn-s-ulcerative-colitis-and-indeterminate-colitis-symptoms-extraintestinal-manifestations-and-disease-phenotypes
#5
Yangyang R Yu, J Ruben Rodriguez
The incidence of inflammatory bowel disease (IBD) is rising with 25% of IBD diagnosed in children under 18 years of age. The clinical presentation of IBD in children is often vague leading to initial misdiagnosis as infectious colitis or irritable bowel syndrome. When IBD is identified, overlap in histologic and endoscopic features may lead to difficulty distinguishing Crohn's disease from ulcerative colitis, resulting in a higher frequency of the diagnosis indeterminate colitis or IBD unspecified. Recognizing the common and the atypical presentation of pediatric IBD and extraintestinal manifestations will aid in expeditious referral and early diagnosis...
December 2017: Seminars in Pediatric Surgery
https://www.readbyqxmd.com/read/29124893/ischaemic-colitis-uncertainty-in-diagnosis-pathophysiology-and-management
#6
REVIEW
Amanda L Nikolic, James O Keck
Ischaemic colitis is the most common form of gastrointestinal ischaemia, but may be confused with acute mesenteric ischaemia, inflammatory bowel disease or infectious colitis. This review article outlines the current classification, epidemiology and risk factors, as well as approaches about diagnosis and management to guide clinical practice. It also identifies areas for further research.
November 9, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29104126/long-term-quality-of-life-associated-with-early-surgical-complications-in-patients-with-ulcerative-colitis-after-ileal-pouch-anal-anastomosis-a-single-center-retrospective-study
#7
Weimin Xu, Hairong Ye, Yilian Zhu, Wenjun Ding, Jihong Fu, Long Cui, Peng Du
BACKGROUND: Ileal pouch-anal anastomosis (IPAA) is recommended for patients with ulcerative colitis (UC) in terms of surgical treatment. Measuring surgical complications of IPAA and long-term quality of life (QOL) are important to achieve an acceptable risk/benefit ratio for patients with UC. MATERIALS AND METHODS: Patients with UC who underwent total proctocolectomy (TPC) with IPAA from February 2008 to July 2016 at our institute were included. Early surgical complications were defined as mechanical/infectious events within one month after IPAA...
November 7, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/29103205/diagnostic-dilemmas-in-chronic-inflammatory-bowel-disease
#8
Maurice B Loughrey, Neil A Shepherd
Histopathological assessment of biopsy and resection specimens of chronic inflammatory bowel disease (CIBD), or possible CIBD, forms a significant component of the routine workload in most tissue pathology laboratories. In this review, we have chosen selected areas of particular diagnostic difficulty in CIBD pathology, providing key advice for pathology reporting. Those mimics of CIBD which have the greatest potential for misdiagnosis are discussed, particularly the wide range of infectious colitides which represent possible diagnostic pitfalls...
November 4, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29058101/dock8-deficiency-presenting-as-an-ipex-like-disorder
#9
Fayhan J Alroqi, Louis-Marie Charbonnier, Sevgi Keles, Fatima Ghandour, Pierre Mouawad, Rami Sabouneh, Reem Mohammed, Abduarahman Almutairi, Janet Chou, Michel J Massaad, Raif S Geha, Zeina Baz, Talal A Chatila
PURPOSE: The dedicator of cytokinesis 8 (DOCK8) deficiency is an autosomal recessive-combined immunodeficiency whose clinical spectra include recurrent infections, autoimmunity, malignancies, elevated serum IgE, eczema, and food allergies. Here, we report on patients with loss of function DOCK8 mutations with profound immune dysregulation suggestive of an immune dysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX)-like disorder. METHODS: Immunophenotyping of lymphocyte subpopulations and analysis of DOCK8 protein expression were evaluated by flow cytometry...
November 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/29047391/report-of-a-case-combining%C3%A2-solitary-peutz-jeghers-polyp-colitis-cystica-profunda-and-high-grade-dysplasia-of-the-epithelium%C3%A2-of-the-colon
#10
Alexandros Papalampros, Michail G Vailas, Maria Sotiropoulou, Efstratia Baili, Spiridon Davakis, Demetrios Moris, Evangelos Felekouras, Ioanna Deladetsima
BACKGROUND: Colitis cystica profunda is a rare nonneoplastic disease defined by the presence of intramural cysts that contain mucus, usually situated in the rectosigmoid area, which can mimic various malignant lesions and polyps. Its etiology still remains not fully elucidated, and several mechanisms such as congenital, post-traumatic, and infectious have been implicated in the development of this rare entity. CASE PRESENTATION: Herein, we describe a unique case of colitis cystica profunda in the setting of Peutz-Jeghers-type polyp of the sigmoid colon, associated with high-grade dysplasia of the overlying epithelium in a 48-year-old female patient, who presented to the emergency room with signs of intestinal obstruction...
October 18, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29018144/ogilvie-s-syndrome-treated-with-an-emergency-laparotomy-right-hemicolectomy-and-end-ileostomy
#11
Andrew James Robinson, John-Patrick Quigley, Athene Banks, Martin Farmer
Acute colonic pseudo-obstruction (ACPO), or Ogilvie's syndrome, is a rare clinical entity in which there is massive non-toxic colonic dilatation in the absence of a mechanically obstructing lesion. It is an important yet poorly recognised cause of surgical morbidity and mortality occurring typically in elderly patients with multiple comorbidities. ACPO can often be reversed conservatively with colonoscopic or nasogastric decompression. Surgical intervention is seldom necessary. We present a case of Ogilvie's syndrome in which a healthy 76-year-old man developed life-threatening pseudo-obstruction following rib polytrauma after a mechanical fall...
October 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28990642/quantitative-phase-microscopy-for-evaluation-of-intestinal-inflammation-and-wound-healing-utilizing-label-free-biophysical-markers
#12
REVIEW
Dominik Bettenworth, Arne Bokemeyer, Christopher Poremba, Nik Sheng Ding, Steffi Ketelhut, Philipp Lenz, Björn Kemper
Inflammatory bowel diseases (IBD) are inflammatory disorders of the gastrointestinal tract characterized by a chronic relapsing disease course. As uncontrolled intestinal inflammation can result in severe disease complications, recent treatment targets of IBD evolved toward seeking the absence of mucosal and histological inflammation. However, this approach requires adequate histological evaluation of IBD disease activity. The diagnostic challenge of histological examination of intestinal inflammation is documented by the multitude of proposed histological scoring systems...
October 9, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28981886/perioperative-use-of-vedolizumab-is-not-associated-with-postoperative-infectious-complications-in-patients-with-ulcerative-colitis-undergoing-colectomy
#13
Marc Ferrante, Anthony de Buck van Overstraeten, Nikkie Schils, Annick Moens, Gert Van Assche, Albert Wolthuis, Séverine Vermeire, André D'Hoore
Background and Aims: Preoperative use of vedolizumab has been associated with increased short-term postoperative infectious complications. We assessed this risk in a single-centre cohort of patients with ulcerative colitis undergoing colectomy. Methods: Chart review was performed for all colectomies between 2006 and 2016. Short-term postoperative [non]infectious complications were evaluated within 30 days after colectomy. The comprehensive complication index was calculated based on all reported events...
October 27, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28955479/granulomatous-colitis-more-than-a-canine-disease-a-case-of-escherichia-coli-associated-granulomatous-colitis-in-an-adult-cat
#14
Rodolfo Oliveira Leal, Kenny Simpson, Mélanie Fine, Jean-Charles Husson, Juan Hernandez
CASE SUMMARY: This report describes a 4-year-old cat with chronic intermittent haematochezia and faecal incontinence of 7 months' duration. Investigation revealed severe colonic multifocal mucosal ulcerations and infiltration of the mucosal lamina propria by large numbers of periodic acid-Schiff-positive macrophages. Fluorescence in situ hybridisation analysis of colonic biopsies revealed multifocal clusters of intracellular Escherichia coli. Treatment with fluoroquinolones for 6 weeks led to a complete resolution of clinical signs...
July 2017: JFMS Open Reports
https://www.readbyqxmd.com/read/28955343/inflammasomes-and-cancer-the-dynamic-role-of-the-inflammasome-in-tumor-development
#15
REVIEW
Melvin Kantono, Beichu Guo
Chronic Inflammation in tumor microenvironments is not only associated with various stages of tumor development, but also has significant impacts on tumor immunity and immunotherapy. Inflammasome are an important innate immune pathway critical for the production of active IL-1β and interleukin 18, as well as the induction of pyroptosis. Although extensive studies have demonstrated that inflammasomes play a vital role in infectious and autoimmune diseases, their role in tumor progression remains elusive. Multiple studies using a colitis-associated colon cancer model show that inflammasome components provide protection against the development of colon cancer...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28881574/prevention-of-colitis-associated-cancer-by-selective-targeting-of-immunoproteasome-subunit-lmp7
#16
Niyati Vachharajani, Thorsten Joeris, Maik Luu, Sabrina Hartmann, Sabine Pautz, Elena Jenike, Georgios Pantazis, Immo Prinz, Markus J Hofer, Ulrich Steinhoff, Alexander Visekruna
Chronic inflammation is a well-known risk factor in development of intestinal tumorigenesis, although the exact mechanisms underlying development of colitis-associated cancer (CAC) still remain obscure. The activity and function of immunoproteasome has been extensively analyzed in the context of inflammation and infectious diseases. Here, we show that the proteasomal immunosubunit LMP7 plays an essential role in development of CAC. Mice devoid of LMP7 were resistant to chronic inflammation and formation of neoplasia, and developed virtually no tumors after AOM/DSS treatment...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28873440/risk-of-gastrointestinal-perforation-in-patients-taking-oral-fluoroquinolone-therapy-an-analysis-of-nationally-representative-cohort
#17
Shou-Chien Hsu, Shy-Shin Chang, Meng-Tse Gabriel Lee, Si-Huei Lee, Yi-Wen Tsai, Shen-Che Lin, Szu-Ta Chen, Yi-Chieh Weng, Lorenzo Porta, Jiunn-Yih Wu, Chien-Chang Lee
BACKGROUND: Fluoroquinolone is a commonly prescribed antimicrobial agent, and up to 20% of its users registers adverse gastroenterological symptoms. We aimed to evaluate the association between use of fluoroquinolone and gastrointestinal tract perforation. METHODS: We conducted a nested case-control study on a national health insurance claims database between 1998 and 2011. The use of fluoroquinolones was classified into current (< 60 days), past (61-365 days prior to the index date) and any prior year use of fluoroquinolones...
2017: PloS One
https://www.readbyqxmd.com/read/28870746/incidence-risk-factors-and-impact-of-clostridium-difficile-colitis-following-primary-total-hip-and-knee-arthroplasty
#18
Patawut Bovonratwet, Daniel D Bohl, Rohil Malpani, Denis Nam, Craig J Della Valle, Jonathan N Grauer
BACKGROUND: An improved understanding of Clostridium difficile is important as it is used as a measure of hospital quality and is associated with substantial morbidity. This study utilizes the National Surgical Quality Improvement Program to determine the incidence, timing, risk factors, and clinical implications of C difficile colitis in patients undergoing primary total hip or knee arthroplasty (THA or TKA). METHODS: Patients who underwent primary THA or TKA as part of the 2015 National Surgical Quality Improvement Program were identified...
August 12, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28861073/epithelial-cell-damage-activates-bactericidal-permeability-increasing-protein-bpi-expression-in-intestinal-epithelium
#19
Arjun Balakrishnan, Dipshikha Chakravortty
As the first line of defense against invading pathogen, intestinal epithelium produces various antimicrobial proteins (AMP) that help in clearance of pathogen. Bactericidal/permeability-increasing protein (BPI) is a 55 kDa AMP that is expressed in intestinal epithelium. Dysregulation of BPI in intestinal epithelium is associated with various inflammatory diseases like Crohn's Disease, Ulcerative colitis, and Infectious enteritis's. In this paper, we report a direct correlation between intestinal damage and BPI expression...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28860493/cxcr3-plays-a-critical-role-for-host-protection-against-salmonellosis
#20
Belal Chami, Amanda Yeung, Michael Buckland, Hongjun Liu, Genevieve M Fong, Kun Tao, Shisan Bao
CXCR3 and its ligands are heavily associated with inflammation and have been implicated in numerous inflammatory diseases. CXCR3 plays an important role in recruiting pro-inflammatory cells, specifically neutrophils, in a model of sterile colitis whereby CXCR3(-/-) mice showed an attenuated course of colitis with markedly reduced host-tissue damage in the inflamed caecum. The role of CXCR3 during infectious colitis, however, is unclear and therefore in this study, we investigated the role of CXCR3 in the regulation of the immune response during acute and chronic gastrointestinal infection, using a murine model of Salmonella enterica serovar Enteritidis...
August 31, 2017: Scientific Reports
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