Abstract：
BACKGROUND AND AIM:Vascularity is a critical feature in the evaluation of pancreatic neuroendocrine tumor (PNET). When done by EUS, contrast agents are recommended. However, vascular architecture (VA) can also be evaluated by routine Doppler flow in EUS without contrast agents. Our aim was to provide a simple VA classification in EUS for PNET grade and prognosis. METHODS:All pathologically proven PNET cases with EUS between 2012 and 2018 were retrospectively analyzed. The Doppler imaging was retrieved for VA classification. Predictive model construction was performed by machine learning algorithms. RESULTS:A total of 112 PNET cases were evaluated, among which 93 cases were subjected to VA classification. The VA was classified into type A (peritumoral with or without intratumoral vessels [A1 or A2]); type B (only intratumoral vessels); and type C (flow was absent). The VA classification was significantly correlated with tumor grades: 74% type A1 was G1, 73% type B was G2, and 58% type C was G3. Multivariate analysis indicated that elevated serum CA19-9 and type C classification were the independent predictors of G3 tumor. Five machine learning models were constructed, among which random forest was the best one with an AUC of 0.9972. Low-risk patients classified by this model exhibited better prognosis than high-risk patients (p = 0.0087). CONCLUSIONS:In the novel simple VA classification, peritumoral, intratumoral, and absent vessels are prone to be G1, G2, and G3, respectively. Combined with serum CA19-9 and lesion size, the VA classification could predict tumor grade and prognosis in PNET.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Chen K,Zhang W,Zhang Z,He Y,Liu Y,Yang Xdoi
10.1007/s10620-018-5240-zsubject
Has Abstractpub_date
2018-11-01 00:00:00pages
3147-3152issue
11eissn
0163-2116issn
1573-2568pii
10.1007/s10620-018-5240-zjournal_volume
63pub_type
杂志文章abstract：:Alkaline sphingomyelinase (Alk-SMase) is a key enzyme in the intestinal tract for digestion of dietary sphingomyelin (SM), which generates lipid messengers with cell-cycle regulating effects. The enzyme is significantly decreased in ulcerative colitis and colon cancer. Based on this information, we wanted to investiga...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-008-0509-2
更新日期：2009-07-01 00:00:00
abstract：:As infection influences the pathogenesis and presentation of celiac disease, we investigated the expression of natural antibiotics in this condition. Twenty-three adults were prospectively studied: 10 controls and 13 subjects with untreated celiac disease. Distal duodenal biopsies were taken at baseline and after 6 mo...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-005-2575-z
更新日期：2005-04-01 00:00:00
abstract：:Vitamin D deficiency is frequently observed in patients with Crohn's disease and may be associated with an increased risk of development of metabolic bone disease. To estimate the incidence of metabolic bone disease by noninvasive methods, 31 patients (17-75 years old) with Crohn's disease and low 25-hydroxyvitamin D ...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01536381
更新日期：1989-07-01 00:00:00
abstract：:The gut endocrine gene, neurotensin (NT/N), is expressed in a strict temporally and spatially specific pattern. Utilizing a sensitive reverse transcription-polymerase chain reaction procedure, we analyzed foregut and midgut organs for NT/N expression, determined the earliest apparent time point that NT/N is expressed ...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1026637730050
更新日期：1999-01-01 00:00:00
abstract：:Aging and gastrointestinal malignancies, including that of the stomach are associated with increased activation of EGF-receptor (EGFR). Although the intracellular events that regulate this process are poorly understood, we hypothesize that loss of ERRP (EGFR-related protein; GenBank accession number AF187818), a recen...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1023078924686
更新日期：2003-05-01 00:00:00
abstract：:Local or national policy, patients' preferences, safety and/or economic concerns, or reimbursement issues may dictate stopping drug in inflammatory bowel diseases (IBD) patients. Sustained deep remission is an important predictor of a better outcome after anti-tumor necrosis (TNF) factor therapy discontinuation, inclu...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章,评审
doi：10.1007/s10620-015-3984-2
更新日期：2016-04-01 00:00:00
abstract：:Nutrients in the lumen of the small intestine may cause the release of enteric hormones which directly or indirectly stimulate intestinal mucosal growth. Male Sprague-Dawley rats with either an intact small bowel or following jejunal resection were maintained on total parenteral nutrition (TPN). C-terminal octapeptide...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01313582
更新日期：1981-05-01 00:00:00
abstract：INTRODUCTION:Interpretation of video capsule data is time-consuming. Olympus capsule endoscopy (CE) software systems are equipped with auto-speed-adjusted and express-selected playback modes and overview function in an effort to reduce reading times. The clinical efficacy of these new playback features is unknown. Our ...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-012-2074-y
更新日期：2012-06-01 00:00:00
abstract：BACKGROUND:Intestinal failure is the most critical complication of Crohn's disease. Intestinal failure requires home parenteral nutrition, which worsens the quality of life of the patients and sometimes causes life-threatening complications. AIMS:The purpose of this study was to investigate the incidence and risk fact...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-019-05553-2
更新日期：2019-08-01 00:00:00
abstract：:The effects of deoxycholic acid (DCA) on the intestinal microbiota, bile acid (BA) metabolism, and intestinal epithelium can be influenced by various factors. Depending on the specific conditions, DCA can be "bad" (proinflammatory) or "good" (anti-inflammatory). Mouse models of colitis show an increase in conjugated B...
journal_title：Digestive diseases and sciences
pub_type： 信件
doi：10.1007/s10620-020-06650-3
更新日期：2020-10-16 00:00:00
abstract：:A sustained increase in cytosolic Ca2+ can damage gastric mucosal cells. The present study has examined the role of Ca2+ in thromboxane B2 (TXB2)-mediated damage of rabbit isolated gastric mucosal cells. Cells were isolated from rabbit oxyntic mucosa by collagenase-EDTA digestion. Cell metabolic activity and cell dama...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF02208674
更新日期：1995-09-01 00:00:00
abstract：:To examine the differentiating parameters between cholesterol and pigment gallstones, we compared the nucleation times, concentrations of biliary lipid and protein, and the distribution of vesicular cholesterol in gallbladder bile of 16 patients with cholesterol, eight patients with black pigment gallstones, and nine ...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01296790
更新日期：1993-01-01 00:00:00
abstract：BACKGROUND:Whether addition of prokinetics to proton pump inhibitors improves esophageal peristalsis and symptoms in patients with gastroesophageal reflux disease (GERD) remains unknown. AIM:We evaluated the effect of mosapride, a 5-HT4 agonist, and PPI cotherapy in patients with GERD on esophageal motility using high...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10620-012-2430-y
更新日期：2013-04-01 00:00:00
abstract：:This study set out to evaluate the effects of dietary fiber on cancer development in the large bowel under in vivo experimental conditions as similar as possible to those under which this cancer develops in vivo in humans. Forty-eight Sprague-Dawley rats were divided into three groups that were fed either a nonfiber d...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1015310211821
更新日期：2002-06-01 00:00:00
abstract：:A case of hypereosinophilic syndrome with eosinophilic colitis, eosinophilic cholecystitis, and increased serum levels of interleukin-5 (IL-5) and soluble interleukin-2 receptor (sIL-2R) is reported. Immunohistochemical studies of cholecystectomy and colon biopsy specimens with monoclonal antibodies, which are specifi...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章,评审
doi：10.1007/BF02093816
更新日期：1996-02-01 00:00:00
abstract：:Ceramide plays an important role in regulating cell proliferation and apoptosis. Recent studies indicate that generation of ceramide in the intestine from sphingomyelin hydrolysis may be implicated in colon cancer development. The enzymes that catalyze the further hydrolysis of ceramide in the intestine have, however,...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1010792031910
更新日期：2001-04-01 00:00:00
abstract：:The protective effect of a human strain of Bifidobacterium bifidum (B. bifidum) against murine group A rotavirus (MRV) was examined in the intestines of BALB/c infected mice. In experiments designed to determine whether B. bifidum mediated MRV shedding during diarrheal disease, pregnant dams (and their expected litter...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF02087647
更新日期：1994-11-01 00:00:00
abstract：:Simultaneous recordings of gastric manometry and myoelectrical activity were made in 10 patients with gastroparesis. Intravenous erythromycin (100 mg) was administered in the fasting state for a period of 30 min. Subcutaneous injection of octreotide (100 microg) was administered before one of the four identical test m...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1018876021156
更新日期：1998-01-01 00:00:00
abstract：:Pregnancy is a time when women are susceptible to bowel habit perturbations. The purpose of this study was to provide new baseline data for a range of bowel habit parameters. Prospective 7-day bowel habit diaries were completed during each of the three trimesters of pregnancy and after birth. Sensations of incomplete ...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章,多中心研究
doi：10.1007/s10620-006-9538-x
更新日期：2007-02-01 00:00:00
abstract：BACKGROUND:COVID-19 has caused a backlog of endoscopic procedures; colonoscopy must now be prioritized to those who would benefit most. We determined the proportion of screening and surveillance colonoscopies appropriate for rescheduling to a future year through strict adoption of US Multi-Society Task Force (USMSTF) g...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-020-06539-1
更新日期：2020-08-16 00:00:00
abstract：:We report a case of localized jejunal amyloidosis occurring in a 74-year-old man who experienced an episode of digestive bleeding while he was receiving oral anticoagulation. It illustrates a rare entity, characterized by an endoscopic aspect of polypoid, pseudotumoral formations. Histologically, submucosal connective...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1005536901678
更新日期：2000-09-01 00:00:00
abstract：:To study the clinicopathologic features of hepatitis C viremic patients negative for hepatitis C antibodies (anti-HCV) by current second-generation assay, we categorized 139 consecutive histologically verified patients with chronic non-A, non-B hepatitis into three groups: 121 (87%) were positive for second-generation...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF02208599
更新日期：1996-01-01 00:00:00
abstract：:This study was done to examine the role of cyclooxygenase (COX) in lipopolysaccharide (LPS)-induced gastroprotection and gastric stasis. In conscious rats, LPS dose and time dependently increased gastric luminal fluid accumulation. LPS decreased blood flow (laser Doppler) and prevented gastric injury from acidified et...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-006-3203-2
更新日期：2006-04-01 00:00:00
abstract：:In a previous study we demonstrated that patients with recently diagnosed non-insulin-dependent diabetes mellitus (NIDDM) had significantly increased gastric emptying rates of glucose solutions compared with those of nondiabetic sex- and age-matched controls. This finding of rapid gastric emptying contrasts with the d...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01296773
更新日期：1993-01-01 00:00:00
abstract：:The effects of various nonsteroidal antiinflammatory drugs on the gastric mucosa were endoscopically evaluated in 40 normal volunteers. Eight groups, each containing five subjects were designed: aspirin (3600 mg/d); placebo; ibuprofen (1600 mg/d); ibuprofen (2400 mg/d); indomethacin (100 mg/d); indomethacin (150 mg/d)...
journal_title：Digestive diseases and sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1007/BF01324896
更新日期：1979-11-01 00:00:00
abstract：:Isoamylase distribution in the urine of normal individuals and patients admitted to the hospital with hyperamylasemia was determined by a wheat inhibitor mmethod and compared to results obtained by cellulose-acetate electrophoresis. We report two cases where the inhibitor ethod failed to give accurate results in urine...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01311727
更新日期：1983-11-01 00:00:00
abstract：BACKGROUND:Gastric acidification inhibits motilin-induced gastric phase III contractions. However, the underlying mechanism has not been thoroughly investigated. Here, we studied the inhibitory mechanism by gastric acidification on motilin-induced contraction in Suncus murinus (S. murinus). METHODS:We measured interdi...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-015-4023-z
更新日期：2016-06-01 00:00:00
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journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-011-1812-x
更新日期：2011-12-01 00:00:00
abstract：BACKGROUND:An increasing number of studies have found that long non-coding RNAs (lncRNAs) play an important role in carcinogenesis and tumor progression, whereas their molecular mechanisms of function remain largely unknown. AIMS:This study was aimed to explore the biological function and underlying mechanism of a new...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-020-06691-8
更新日期：2020-11-03 00:00:00
abstract：:Bombesin or gastrin-releasing peptide prevents gastric injury by an unknown mechanism. Since exogenous gastrin is a gastroprotective agent, this study was undertaken to test the hypothesis that gastroprotection by bombesin involves release of endogenous gastrin. Subcutaneous bombesin (10-100 microg/kg) dose dependentl...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1018830517773
更新日期：1998-04-01 00:00:00
