Abstract:
OBJECTIVES:Previous decision analyses of inflam matory bowel diseases (IBD) have used decision trees and Markov chains. Occasionally IBD patients present with medical problems that are difficult or even impossible to phrase in terms of such established decision tools. This article aims to introduce modeling by a time-dependent compartment mode and demonstrate its feasibility for decision analysis in IBD METHODS: A Crohn's disease patient presented with a pelvic abscess and an enterovesical fistula. Being hesitant to operate in an acutely inflamed area, the surgeon recommended that the patient continue antibiotic therapy until the abscess had re solved. The gastroenterologist argued that the patient had already been treated with antibiotics for a prolonged time period and expressed concern that the patient's overall diminished health status would deteriorate by further delay of surgery. The occurrence of fistula, abscess, urinary tract infection, antibiotic therapy, surgical operation, and health-related quality of life were modeled as separate compartments, with time-dependent relationships among them. The simulation was carried out on an Excel spreadsheet. RESULTS:In the model, the surgeon's predictions were associated with rapid resolution of the pelvic abscess under antibiotic therapy and improvement of the patient's health status. The gastroenterologist's predictions resulted in a smaller decline in abscess size and further deterioration of the patient's health while waiting for a definitive treatment. The disagreement between surgery and gastroenterology arose from predicting different time courses for the individual disease events, in essence, from assigning different time constants to the time-dependent influences of the disease model. CONCLUSIONS:The compartment model provides a simple and generally applicable method to assess time dependent-changes of a complex disease. The present analysis also serves to illustrate the usefulness of such models in simulating disease behavior.
journal_name
Inflamm Bowel Disjournal_title
Inflammatory bowel diseasesauthors
Sonnenberg A,Gavin MWdoi
10.1002/ibd.3780060405keywords:
subject
Has Abstractpub_date
2000-11-01 00:00:00pages
280-5issue
4eissn
1078-0998issn
1536-4844journal_volume
6pub_type
杂志文章abstract:BACKGROUND:A novel family of proton-sensing G protein-coupled receptors, including OGR1, GPR4, and TDAG8, was identified to be important for physiological pH homeostasis and inflammation. Thus, we determined the function of proton-sensing OGR1 in the intestinal mucosa. MTEHODS:OGR1 expression in colonic tissues was in...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000375
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND:This study examines the resources utilization in patients with Crohn's disease (CD) during the year before (Y - 1) and after (Y + 1) starting treatment with adalimumab and the drug's efficiency. METHODS:Observational, multicenter, prospective cohort study of patients with CD naive to biological drugs. The p...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,多中心研究
doi:10.1097/MIB.0000000000000413
更新日期:2015-07-01 00:00:00
abstract::Tolerance, the regulated inability to respond to a specific immunologic stimulant, is a physiological event important to normal immune function. Just as loss of tolerance to self-proteins results in autoimmune diseases, we assert that loss of tolerance to commensal flora in the intestinal lumen leads to inflammatory b...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/00054725-200407000-00023
更新日期:2004-07-01 00:00:00
abstract:BACKGROUND:The incorporation of abstracts from scientific meetings into systematic reviews and practice guidelines may reduce publication bias and delays in implementing therapeutic interventions. METHODS:All abstracts of Phase III randomized controlled trials in inflammatory bowel disease accepted at Digestive Diseas...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21131
更新日期:2010-06-01 00:00:00
abstract::Ulcerative colitis (UC) and Crohn's disease (CD) may directly result in morbidity and rarely mortality from complications such as colorectal cancer or sepsis. Mortality rates compared with the matched general population, measured by standardized mortality ratio, may therefore be increased. This review examines the evi...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.22871
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:Fecal biomarkers are used increasingly to monitor Crohn's disease (CD). However, the relative accuracy of different markers in identifying inflammation has been poorly evaluated. We evaluated fecal calprotectin (FC), lactoferrin (FL), and S100A12 (FS) using endoscopic validation in a prospective study of the...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,随机对照试验
doi:10.1097/MIB.0000000000000671
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:To explore the relationship between personality and disease-specific quality of life [Inflammatory Bowel Disease Questionnaire (IBDQ)] in distressed [Perceived Stress Questionnaire (PSQ)] patients with ulcerative colitis (UC) and Crohn's disease (CD). METHODS:Included in the study were 56 patients with UC a...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,多中心研究
doi:10.1002/ibd.20367
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND AND AIMS:Poor sleep quality in Crohn's disease (CD) is associated with histologic activity and clinical relapse. We sought to characterize sleep dysfunction and determine the effect of poor sleep quality on risk for hospitalization and surgery. METHODS:Clinical data were collected for CD subjects including ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz258
更新日期:2020-07-17 00:00:00
abstract:BACKGROUND:Many chronic illnesses are accompanied by impaired cognitive functioning. In people with Inflammatory Bowel Disease (IBD), there is some research to suggest a decrement in verbal IQ (VIQ), when compared to people with Irritable Bowel Syndrome (IBS) and healthy controls. Although this is an important finding,...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20837
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND:There is often dissociation between inflammatory activity and abdominal pain in children with inflammatory bowel disease (IBD), suggesting other factors may play a role in the pain experience. METHODS:Patients (8 to 17 years) newly diagnosed with IBD were enrolled in the ALLAY Study: Assessing Risk Factors ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz240
更新日期:2020-07-17 00:00:00
abstract:BACKGROUND:Extracellular nucleotides released in conditions of cell stress alert the immune system from tissue injury or inflammation. We hypothesized that the P2X7 receptor (P2X7-R) could regulate key elements in inflammatory bowel disease pathogenesis. METHODS:Colonoscopy samples obtained from patients with Crohn's ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/01.MIB.0000441201.10454.06
更新日期:2014-03-01 00:00:00
abstract:SUMMARY:: In recent years, heparin has emerged as a possible therapy for inflammatory bowel disease (IBD). Several recent, strongly positive, open-labeled series of heparin in both ulcerative colitis (UC) and Crohn's disease (CD) reinforce the work of Gaffney and co-workers that suggested a benefit of heparin in UC. Al...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract:BACKGROUND:Ulcerative colitis (UC) negatively affects health-related quality of life (HRQoL), but population-based and long-term data on this topic are scarce. Our aim was to determine the HRQoL in UC patients after a 10-year disease duration. METHODS:UC patients from a population-based inception cohort met at a presc...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21863
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND & AIMS:Malnutrition with the accumulation of fat tissue and nonalcoholic fatty liver disease (NAFLD) are conditions associated with inflammatory bowel disease (IBD). Visceral fat and NAFLD-related liver dysfunction can both worsen intestinal inflammation. Because the Mediterranean diet (Md) has been shown to...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izaa097
更新日期:2021-01-01 00:00:00
abstract::Restorative proctocolectomy with ileal-pouch anal anastomosis (RPC) is the operation of choice for ulcerative colitis (UC) patients requiring surgery. It is also used for patients with familial adenomatous polyposis (FAP). Pouchitis accounts for 10% of pouch failures. It is an idiopathic inflammatory condition that ma...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.21911
更新日期:2012-06-01 00:00:00
abstract::As the frontiers of immunological research expand, new insights into the pathogenesis of long poorly understood diseases, such as inflammatory bowel disease (IBD), are opening up new possible avenues for treatment. Myeloid-derived cells (i.e., monocytes, macrophages, neutrophils, and dendritic cells), long believed to...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000511
更新日期:2015-12-01 00:00:00
abstract:Background:Colorectal cancer (CRC) is a major cause of cancer-related deaths, and tumor-related comorbidities additionally lower life quality and survival. Mutations in the tumor suppressor adenomatous polyposis coli (APC) are associated with sporadic CRC and familial adenomatous polyposis (FAP), which results in the g...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izy234
更新日期:2018-10-12 00:00:00
abstract::Focal infection theory posits that periodontal pathobionts play a causal role in initiating or exacerbating diseases. Periodontal disease is a common inflammatory, multifactorial disease of the periodontal tissues. The main factor for inflammation is mature dental plaque with the presence of pathogens in the microbial...
journal_title:Inflammatory bowel diseases
pub_type: 评论,社论
doi:10.1093/ibd/izz129
更新日期:2020-01-06 00:00:00
abstract:BACKGROUND:Ulcerative colitis (UC), a chronic, relapsing, and remitting inflammatory bowel disease, requires long-term treatment to maintain remission. In this study, the long-term safety and tolerability of mesalamine granules (MG) therapy was evaluated in the maintenance of UC remission. Previous prospective studies ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,多中心研究
doi:10.1097/MIB.0000000000000076
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:The aim of this study was to assess the clinical benefit and tolerability of adalimumab, a fully human monoclonal antibody to tumor necrosis factor (TNF), in patients with ulcerative colitis (UC). METHODS:Patients with active UC, including those who had lost response or developed intolerance to the chimeric...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20924
更新日期:2009-09-01 00:00:00
abstract::Chemokines, a large family of small chemoattractive cytokines, and their receptors play an integral role in the regulation of the immune response and homeostasis. The ability of chemokines to attract specific populations of immune cells sets them apart from other chemoattractants. Chemokines produced within the gastro...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.20480
更新日期:2008-07-01 00:00:00
abstract:BACKGROUND:The incidence of inflammatory bowel disease (IBD) has increased over the past several decades with a corresponding increase in the number of patients on combination immunosuppressive therapy including corticosteroids, anti-metabolites and biologic agents. The exact incidence of pneumocystis jiroveci pneumoni...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/MIB.0b013e318281f562
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:Establishing predictors of quality of life (QoL) in individuals with inflammatory bowel disease could help to identify those patients who are most likely to experience poor QoL and to target therapeutic interventions appropriately. We aimed to investigate how disease-specific QoL depends on demographic, dise...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/00054725-200501000-00004
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Several studies suggest an increased risk of venous and arterial thromboembolism (TE) in adults with inflammatory bowel disease (IBD) compared to the general population. We performed a systematic review of studies on incidence and characteristic of TE in children with IBD. METHODS:We searched Medline, LILAC...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.21563
更新日期:2011-10-01 00:00:00
abstract::Recent reports have focused interest on human cytomegalovirus (HCMV) in inflammatory bowel diseases (IBD). Our aim in this study was to examine the frequency of HCMV-infected intestinal cells in tissue sections obtained from patients with IBD, and to investigate if HCMV-infected intestinal cells produce the proinflamm...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/00054725-200305000-00002
更新日期:2003-05-01 00:00:00
abstract:BACKGROUND:Inflammatory bowel disease (IBD) causes serious morbidity and disability, and the incidence is increasing. The disease etiology is not well understood, though inflammatory reactions after antibiotic exposure may be associated with development of IBD. We investigated the association between IBD and prior anti...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz137
更新日期:2020-02-11 00:00:00
abstract:OBJECTIVES:There is some uncertainty regarding how to best dose and therapeutically monitor 6-mercaptopurine or azathioprine in patients with inflammatory bowel disease. The purpose of this study was to assess the relation between clinical response, 6-mercaptopurine metabolite levels, relative leukopenia, and drug dose...
journal_title:Inflammatory bowel diseases
pub_type: 临床试验,杂志文章
doi:10.1097/00054725-200407000-00003
更新日期:2004-07-01 00:00:00
abstract:Background:Social media is commonly used among the adolescent and young adult population, including those with chronic diseases. For adults, these platforms have been shown to be a major source of health information. Our aims were to explore how youth with inflammatory bowel disease (IBD) use social media for (1) disea...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izy021
更新日期:2018-05-18 00:00:00
abstract:BACKGROUND:Genetic susceptibility may play a more important role in the etiology of early-onset inflammatory bowel disease (IBD) than in late-onset IBD, and therefore pediatric-onset IBD patients can be expected to have a higher frequency of gene mutations. We aimed to determine genotypes and phenotypes of patients wit...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20171
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Current surveillance guidelines for patients with long-standing ulcerative colitis (UC) recommend repeated colonoscopy with random biopsies, which is time-consuming, discomforting, and expensive. A less invasive strategy is to identify neoplasia by analyzing biomarkers from the more accessible rectum to pred...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21639
更新日期:2011-12-01 00:00:00