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 predict the need for a full colonoscopy. The goal of this pilot study was to evaluate whether optical markers of rectal mucosa derived from a novel optical technique, partial-wave spectroscopic microscopy (PWS), could identify UC patients with high-grade dysplasia (HGD) or cancer (CA) present anywhere in their colon. METHODS:Banked frozen nondysplastic mucosal rectal biopsies were used from 28 UC patients (15 without dysplasia and 13 with concurrent HGD or CA). The specimen slides were made using a touch prep method and underwent PWS analysis. We divided the patients into two groups: 13 as a training set and an independent 15 as a validation set. RESULTS:We identified six optical markers, ranked by measuring the information gain with respect to the outcome of cancer. The most effective markers were selected by maximizing the cross-validated training accuracy of a Naive Bayes classifier. The optimal classifier was applied to the validation data yielding 100% sensitivity and 75% specificity. CONCLUSIONS:Our results indicate that the PWS-derived optical markers can accurately predict UC patients with HGD/CA through assessment of rectal epithelial cells. By aiming for high sensitivity, our approach could potentially simplify the surveillance of UC patients and improve overall resource utilization by identifying patients with HGD/CA who should proceed with colonoscopy.
journal_name
Inflamm Bowel Disjournal_title
Inflammatory bowel diseasesauthors
Bista RK,Brentnall TA,Bronner MP,Langmead CJ,Brand RE,Liu Ydoi
10.1002/ibd.21639subject
Has Abstractpub_date
2011-12-01 00:00:00pages
2427-35issue
12eissn
1078-0998issn
1536-4844journal_volume
17pub_type
杂志文章abstract:BACKGROUND AND AIMS:Ulcerative colitis (UC) is a form of inflammatory bowel disease, and antibodies against tumor necrosis factor (anti-TNF) are used for treatment. Many patients are refractory or lose response to anti-TNF, and predicting response would be an extremely valuable clinical tool. Unlike most biomarkers, cy...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izy358
更新日期:2019-02-21 00:00:00
abstract:BACKGROUND:Inflammatory bowel disease is a chronic inflammatory disorder of the gastrointestinal tract that significantly impacts the health-related quality of life (HR-QOL). A decreased HR-QOL has been demonstrated in patients with active disease compared with patients in remission. In this cross-sectional study, we e...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e318281f395
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:The incidence of very early onset inflammatory bowel disease (VEOIBD) is increasing, yet the phenotype and natural history of VEOIBD are not well described. METHODS:We performed a retrospective cohort study of patients diagnosed with VEOIBD (6 years of age and younger) between 2008 and 2013 at 25 North Amer...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izaa080
更新日期:2020-05-09 00:00:00
abstract:BACKGROUND:Genetic variants of nucleotide-binding oligomerization domain 2 (NOD2) lead to aberrant microbial recognition and can cause chronic inflammatory diseases in patients with Crohn's disease (CD). METHODS:We utilized gene-specific siRNA mediated knockdown and expression of guanine nucleotide exchange factor H1 ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21851
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:The clinical implication of Clostridium difficile infection (CDI) in patients with ileal pouch-anal anastomosis (IPAA) for underlying inflammatory bowel disease (IBD) has not been well studied. This study was designed to investigate the cumulative incidence, risk factors, and outcome of CDI in patients with ...
journal_title:Inflammatory bowel diseases
pub_type: 临床试验,杂志文章
doi:10.1097/MIB.0b013e318280fcb9
更新日期:2013-02-01 00:00:00
abstract:BACKGROUND:Aside from cases of backwash ileitis, the ileal mucosa of patients with ulcerative colitis (UC), an idiotypic inflammatory bowel disease, has received little attention despite the fact that colitis is known to trigger alterations in morphology and/or functions of the small intestine remotely. METHODS:The il...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000871
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:We have developed a technique for measuring fecal excretion of human DNA by assuming that luminal desquamation of epithelial and inflammatory cells increases in damaged colonic mucosa. However, the clinical usefulness of this technique in the follow-up of patients with ulcerative colitis has not been establi...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20042
更新日期:2007-04-01 00:00:00
abstract:BACKGROUND:The pregnane X receptor (PXR/NR1I2) is an important regulator of xenobiotic metabolism and intestinal integrity. However, there are controversial studies on the role of PXR/NR1I2 in inflammatory bowel disease (IBD). We therefore initiated the largest analysis to date on PXR/NR1I2 gene variants in IBD patient...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21562
更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:Intestinal inflammation produces an induction of alkaline phosphatase (AP) activity that is attributable in part to augmented expression, accompanied by a change in isoform, in epithelial cells. METHODS:This study focuses on induction of AP in intestinal epithelial cells in vitro. RESULTS:Treatment with th...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21381
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:Anti-tumor necrosis factor-α (anti-TNF-α) treatments are increasingly used to treat pediatric Crohn's disease, even without a prior trial of immunomodulators, but the cost-effectiveness of such treatment algorithms has not been formally examined. Drug plan decision-makers require evidence of cost-effectivene...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz267
更新日期:2020-07-17 00:00:00
abstract::We report genome-wide linkage results using model-free linkage analysis (Allegro) of 358 autosomal microsatellites in 260 new inflammatory bowel disease-affected relative pairs from 139 Caucasian families, including 108 Crohn's disease-affected relative pairs and 72 ulcerative colitis-affected relative pairs. Our resu...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/00054725-200409000-00004
更新日期:2004-09-01 00:00:00
abstract:BACKGROUND:Inflammatory bowel disease (IBD) is associated with a high risk of deep venous thromboembolism. However, few data are available so far on portomesenteric vein thrombosis (PMVT). The aim of this study was to describe the characteristics of PMVT in patients with IBD. METHODS:A retrospective study was conducte...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,多中心研究
doi:10.1097/MIB.0b013e31827eea5f
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:Outcomes are suboptimal in ulcerative colitis (UC). Telemedicine for UC is feasible and improves outcomes. Our goals were to evaluate a home telemanagement system for UC (UC HAT) on disease activity, quality of life (QoL), and adherence compared to best available care (BAC) in a randomized, controlled trial....
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,随机对照试验
doi:10.1002/ibd.21795
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND AND AIMS:Crohn's disease (CD) is a chronic and invalidating inflammatory bowel disease of unknown etiology. The coordinated action of the cytochrome metabolizing subfamily CYP3A and the transport protein P-glycoprotein (P-gp) in the enterocyte results in a reduced bioavailability of drugs administered orally...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/00054725-200608000-00011
更新日期:2006-08-01 00:00:00
abstract:BACKGROUND:Recent studies have suggested that the downregulation of pregnane X receptor (PXR) may contribute to the susceptibility and exacerbation of Crohn's disease (CD). Because bile acid malabsorption is one of the features of CD and bile acids are potential activators of PXR, we explored the relationship between b...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e318281f423
更新日期:2013-05-01 00:00:00
abstract:Background:Anastomotic recurrence is frequent in patients with Crohn's disease (CD) following ileocecal resection. The degree of endoscopic recurrence, quantified by the Rutgeerts score (RS), is correlated with the risk of clinical and surgical recurrence. Noninvasive modalities such as capsule endoscopy (CE), magnetic...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,meta分析
doi:10.1093/ibd/izx027
更新日期:2017-12-19 00:00:00
abstract:Background:Understanding of the prevalence, pathophysiology, and management of fecal incontinence (FI) in inflammatory bowel disease (IBD) patients without an ileal pouch anal anastomosis (IPAA) is suboptimal. We conducted a systematic review and meta-analysis on the prevalence, pathophysiology, and management of prima...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,meta分析
doi:10.1093/ibd/izx109
更新日期:2018-05-18 00:00:00
abstract::Corticosteroids are considered a drug of choice for the treatment of patients with moderately to severely active Crohn's disease (CD), an inflammatory bowel disease characterized by chronic recurrent flares of disease activity. However, among patients receiving corticosteroid therapy for induction of remission, 20% ha...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.3780070506
更新日期:2001-05-01 00:00:00
abstract::Restorative proctocolectomy (RPC) with ileal pouch-anal anastomosis is the surgical procedure of choice for patients with ulcerative colitis (UC). It is also performed in selected patients with familial adenomatous polyposis (FAP). A significant proportion of patients will develop pouch dysfunction. Flexible pouchosco...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,实务指引,评审
doi:10.1002/ibd.20874
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND:Apolipoprotein E (ApoE) mediates potent antiinflammatory and immunomodulatory properties in addition to its roles in regulating cholesterol transport and metabolism. However, its role in the intestine, specifically during inflammation, is largely unknown. METHODS:Mice (C57BL/6 or ApoE-deficient [ApoE-KO] mi...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000699
更新日期:2016-04-01 00:00:00
abstract:BACKGROUND:The risk of corticosteroid-associated adverse events can limit the use of systemic corticosteroids. Oral, topically acting, second-generation corticosteroids that deliver drug to the site of inflammation, and biologic therapies, are effective treatment alternatives. The aim of this review was to evaluate the...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/MIB.0000000000001261
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:The risk of suicide is increased among people with inflammatory bowel disease (IBD); however, most of the evidence regarding this association comes from studies of all-cause mortality, with small numbers of people who have committed suicide, or from clinical case reports. The current study examined the assoc...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21298
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Mucosal healing in ulcerative colitis leads to a decreased need for medication and decreased risk of disease relapse and colectomy. Histological healing seems to improve the disease prognosis even further. An assessment of both endoscopic and histological mucosal healing requires endoscopy, and the need for ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000736
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:P-glycoprotein (P-gp), the product of the multidrug resistance gene (MDR), is an ATP-dependent transmembrane pump, which is expressed in multiple cell lineages including epithelial and hematopoetic cells. The human MDR gene is located on chromosome 7 (7q21.1), a susceptibility loci for inflammatory bowel dis...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20824
更新日期:2009-05-01 00:00:00
abstract::Inflammatory bowel disease (IBD) is now recognized as a common chronic disease affecting children and adolescents. This article will review recent advances made in the fields of genetics, epidemiology, gut ecology, and immunology regarding the etiopathogenesis of IBD, with particular emphasis on the contributions made...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/00054725-200203000-00008
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND:Antimicrobial peptides (AMPs) maintain a sterile environment in intestinal crypts, limiting microbial colonization and invasion. Decreased AMP expression is proposed to increase the risk for inflammatory bowel disease. Expression and function of inducible AMPs, human β-defensin 2 and 3 (hBD-2 and hBD-3), rem...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e318280b11a
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:Improved treatment approaches for ulcerative colitis (UC), including novel medications, might reduce the need for colectomy. We performed a retrospective cohort study of adult patients (age 18-64) with UC in the United States to examine time trends for colectomy and biologic use from 2007 to 2016. METHODS:W...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz247
更新日期:2020-07-17 00:00:00
abstract:BACKGROUND:Many treatment options exist for children with inflammatory bowel disease (IBD), yet the lack of clinical guidelines for management has lead to great variation in care. The purpose of this project was to evaluate current treatment modalities in children from the Northeast US who applied to the 2010 session o...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.22837
更新日期:2012-10-01 00:00:00
abstract::Biologic treatments have revolutionized the way we treat inflammatory bowel disease patients (IBD). Anti-tumor necrosis factor (anti-TNF) antibodies are superior to conventional therapies to achieve sustained remission without steroids and mucosal healing. The objective of IBD treatment has evolved from symptom allevi...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1093/ibd/izx098
更新日期:2018-03-19 00:00:00
abstract::Inflammatory bowel disease (IBD) has been increasingly diagnosed in children and adults. Similarly, acute and chronic pancreatitis are increasingly prevalent conditions with potentially devastating consequences. There is a growing body of literature linking these 2 conditions. The purpose of this review is to provide ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/MIB.0000000000000611
更新日期:2016-02-01 00:00:00