نتایج جستجو برای: ulcerative colitis uc

تعداد نتایج: 39878  

2013
Marina García-Miguel M. Julieta González Rodrigo Quera Marcela A. Hermoso

Innate immunity prevents pathogens from entering and spreading within the body. This function is especially important in the gastrointestinal tract and skin, as these organs have a large surface contact area with the outside environment. In the intestine, luminal commensal bacteria are necessary for adequate food digestion and play a crucial role in tolerance to benign antigens. Immune system d...

2003
Kathleen A. Head Julie S. Jurenka

Ulcerative colitis (UC), a subcategory of inflammatory bowel disease, afflicts 1-2 million people in the United States, and many more worldwide. Although the exact cause of ulcerative colitis remains undetermined, the condition appears to be related to a combination of genetic and environmental factors. While conventional treatments can be effective in maintaining remission and decreasing the l...

Journal: :Gastroenterology 2011
Aleixo M Muise Thomas Walters Wei Xu Grace Shen-Tu Cong-Hui Guo Ramzi Fattouh Grace Y Lam Victorien M Wolters Joshua Bennitz Johan van Limbergen Paul Renbaum Yair Kasirer Bo-Yee Ngan Dan Turner Lee A Denson Philip M Sherman Richard H Duerr Judy Cho Charlie W Lees Jack Satsangi David C Wilson Andrew D Paterson Anne M Griffiths Michael Glogauer Mark S Silverberg John H Brumell

BACKGROUND & AIMS RAC1 is a guanosine triphosphatase that has an evolutionarily conserved role in coordinating immune defenses, from plants to mammals. Chronic inflammatory bowel diseases are associated with dysregulation of immune defenses. We studied the role of RAC1 in inflammatory bowel diseases using human genetic and functional studies and animal models of colitis. METHODS We used a can...

Journal: :caspian journal of internal medicine 0
valiullah mehrabi department of pediatric surgery, pediatric medical center, tehran university of medical sciences, tehran, iran. leily mohajerzadeh pediatric surgery research center, shahid beheshti university of medical sciences, tehran, iran. alireza mirshemirani pediatric surgery research center, shahid beheshti university of medical sciences, tehran, iran. ahmad khaleghnejad tabari pediatric surgery research center, shahid beheshti university of medical sciences, tehran, iran. azadeh falahi department of pediatric surgery, pediatric medical center, tehran university of medical sciences, tehran, iran. shabnam abtahi department of pediatric surgery, pediatric medical center, tehran university of medical sciences, tehran, iran.

background: total colectomy is used in children with total colonic aganglionosis, ulcerative colitis (uc) and familial adenomatous polyposis (fap). the purpose of this study was to maintain ileocecal valve and rectal-sparing surgery for the prevention of fecal incontinence in these children. methods: from1990 to 2011, 14 children with diagnosis of uc, fap and hirschsprung’s disease were operate...

2015
Julia Hardt Peter Kienle

BACKGROUND The incidence of colorectal cancer (CRC) among patients with ulcerative colitis (UC) is increased compared to the general population. The diagnosis of CRC potentially influences surgical decision making in patients with UC. METHODS This review considers clinical studies, systematic reviews, and guidelines on the surgical therapy of CRC in UC. We searched the bibliographic databases...

Journal: :middle east journal of digestive diseases 0
ali bahari mahmoud aarabi mehdi hedayati ali jarollahi farzad firouzi rahim aghazadeh

background: patients with ulcerative colitis (uc) carry autoantibodies such as perinuclear antineutrophil cytoplasmic antibodies (p-anca). objective: the aim of the present study was to evaluate the target antigens for p-anca in iranian patients with uc. methods: p-anca target antigens including elastase, lactoferrin, cathepsin g, myeloproxidase, lysozyme, and bactericidal permeability increasi...

Journal: :Journal of Medical Case Reports 2008
Ryan S Carvalho Lindsay Wilson Carmen Cuffari

INTRODUCTION Although respiratory involvement has been described in patients with IBD, well-defined interstitial lung disease has not been reported, especially among children with ulcerative colitis. CASE PRESENTATION Herein, we present a case of an adolescent female with ulcerative colitis and extra-intestinal complications involving the lungs that were effectively treated with anti-metaboli...

2017
Fan Wang Pai-Lan Peng Xue Lin Ying Chang Jing Liu Rui Zhou Jia-Yan Nie Wei-Guo Dong Qiu Zhao Jin Li

The role of intestinal lamina propria (LP) NKG2D+ NK cells is unclear in regulating Th1/Th2 balance in ulcerative colitis (UC). In this study, we investigated the frequency of LP NKG2D+ NK cells in DSS-induced colitis model and intestinal mucosal samples of UC patients, as well as the secretion of Th1/Th2/Th17 cytokines in NK cell lines after MICA stimulation. The role of Th1 cytokines in UC wa...

2016
Shigehiro Itani Toshio Watanabe Yuji Nadatani Naoki Sugimura Sunao Shimada Shogo Takeda Koji Otani Shuhei Hosomi Yasuaki Nagami Fumio Tanaka Noriko Kamata Hirokazu Yamagami Tetsuya Tanigawa Masatsugu Shiba Kazunari Tominaga Yasuhiro Fujiwara Tetsuo Arakawa

The inflammasomes induce maturation of pro-interleukin-1β (IL-1β) and pro-IL-18. We investigated roles of the NLRP3 inflammasome in the pathogenesis of ulcerative colitis (UC). After induction of oxazolone-induced colitis, a mouse UC model, colonic tissues were assayed for inflammatory mediators. Histological studies were performed on inflamed colonic tissue from mice and UC patients. Histologi...

Journal: :RNA & disease 2015
Ivy Ka Man Law Charalabos Pothoulakis

Ulcerative colitis (UC) and Crohn's Disease (CD) are the two most common forms of Inflammatory Bowel Diseases (IBD) marked by chronic and persistent inflammation. Neurotensin (NT), together with its receptor, NT receptor 1 (NTR1), are important mediators in intestinal inflammation and their expression is upregulated in the intestine of experimental colitis models and UC colonic biopsies. MicroR...

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