Abstract:
AIM:To evaluate the feasibility of using multiphoton microscopy (MPM) to assess a tumor regression grading (TRG) system. METHODS:Fresh specimens from seven patients with colorectal carcinoma undergoing neoadjuvant radiochemotherapy at the Fujian Medical University Union Hospital were obtained immediately after proctectomy. Specimens were serially sectioned (10 µm thickness) and used for MPM or stained with hematoxylin and eosin for comparison. Sections were imaged by MPM using 810 nm excitation, and images were collected in two wavelength channels corresponding to second-harmonic generation (SHG) and two-photon excited fluorescence (TPEF) signals. The ratio of these signal intensities was used to distinguish fibrosis from normal mucosal and serosal tissues. RESULTS:TRG of specimens assessed by MPM were in complete agreement with histologic grading performed by a consulting pathologist. SHG and TPEF images clearly revealed collagen fibers and fragmented elastic fibers in the muscularis propria specimens following neoadjuvant radiochemotherapy. Additionally, blood vessel hyperplasia was observed as thickening and fibrosis of the intima and media, which was accompanied by minimal inflammatory cell infiltration. Furthermore, the SHG/TPEF ratio in stromal fibrosis (4.15 ± 0.58) was significantly higher than those in the normal submucosal (2.31 ± 0.52) and serosal (1.47 ± 0.10) tissues (P < 0.001 for both). Analysis of emission spectra from cancerous tumor cells revealed two peaks corresponding to nicotinamide adenine dinucleotide hydrogen and flavin adenine dinucleotide signals; the ratio of these values was 1.19 ± 0.02, which is close to a normal metabolic state. CONCLUSION:MPM can be used to perform real-time diagnosis of tumor response after neoadjuvant treatment, and can be applied to evaluate TRG.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Li LH,Chen ZF,Wang XF,Zhuo SM,Li HS,Jiang WZ,Guan GX,Chen JXdoi
10.3748/wjg.v21.i14.4210subject
Has Abstractpub_date
2015-04-14 00:00:00pages
4210-5issue
14eissn
1007-9327issn
2219-2840journal_volume
21pub_type
杂志文章abstract::Eosinophilic oesophagitis (EoE) is a chronic, antigen mediated disease of the disease of the oesophagus that may present in both adults and children. It is characterised by intermittent dysphagia, food bolus obstruction and weight loss. The pathogenesis is incompletely understood but is thought to culminate in poor co...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v19.i6.790
更新日期:2013-02-14 00:00:00
abstract::Alterations in epigenetic control of gene expression play an important role in many diseases, including gastric cancer. Many studies have identified a large number of upregulated oncogenic miRNAs and downregulated tumour-suppressor miRNAs in this type of cancer. In this review, we provide an overview of the role of mi...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v22.i35.7951
更新日期:2016-09-21 00:00:00
abstract:AIM:To investigate the effect of serum derived from rats treated with electroacupuncture at stomach meridian acupoints on the expression of epidermal growth factor receptor (EGFR) gene in gastric mucosal cells. METHODS:The stress-induced gastric mucosal injury in rat model was established by water-immersion and restra...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i34.5557
更新日期:2006-09-14 00:00:00
abstract::Since the development of uncovered self-expanding metal stents (SEMS) in the 1990s, endoscopic stents have evolved dramatically. Application of new materials and new designs has expanded the indications for enteral SEMS. At present, enteral stents are considered the first-line modality for palliative care, and numerou...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v22.i2.842
更新日期:2016-01-14 00:00:00
abstract:AIM:To investigate let-7a expression and analyze the correlation between let-7a and progression of gastric mucosa cancerization. METHODS:The tissue microarray was constructed previously in 52 cases of human gastric carcinoma, 17 cases of chronic atrophic gastritis (atypical hyperplasia) and 11 cases of normal gastric ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i26.3325
更新日期:2010-07-14 00:00:00
abstract::We report a rare case of hypereosinophilic syndrome (HES) presenting with intractable gastric ulcers. A 71-year-old man was admitted with epigastric pain. Initial endoscopic findings revealed multiple, active gastric ulcers in the gastric antrum. He underwent Helicobacter pylori (H pylori) eradication therapy followed...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.15.6129
更新日期:2009-12-28 00:00:00
abstract:AIM:To determine whether absorbable sutures or non-absorbable sutures are better in preventing surgical site infection (SSI), in this paper we discuss the results of a randomized clinical trial which examined the type of sutures used during hepatectomy. METHODS:All hepatic resections performed from January 2007 to Nov...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,随机对照试验
doi:10.3748/wjg.v17.i18.2338
更新日期:2011-05-14 00:00:00
abstract:AIM:To evaluate the association between Chlamydia pneumoniae (Cpn) infection and primary biliary cirrhosis (PBC). METHODS:Cpn IgG and IgM were determined by enzyme-linked immunosorbent assay (ELISA) in 41 well-established PBC patients and two race-matched control groups (post-hepatitis cirrhosis, n = 70; healthy contr...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i26.4108
更新日期:2005-07-14 00:00:00
abstract:AIM:To demonstrate that caudate lobectomy is a valid treatment in cases of hepatocellular carcinoma (HCC) rupture in the caudate lobe based on our experience with the largest case series reported to date. METHODS:A retrospective study of eight patients presenting with spontaneous rupture and hemorrhage of HCC in the c...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v21.i26.8163
更新日期:2015-07-14 00:00:00
abstract::Barrett's esophagus (BE) is characterized by intestinal metaplasia with the differentiated epithelium replaced by another type of epithelium morphologically similar to normal intestinal epithelium. The metaplasia is preceded by bile and acid reflux into the esophagus. BE is a premalignant condition associated with inc...
journal_title:World journal of gastroenterology
pub_type: 评论,杂志文章
doi:10.3748/wjg.v19.i18.2736
更新日期:2013-05-14 00:00:00
abstract::The combination of either boceprevir or telaprevir with ribavirin and interferon (triple therapy) has been shown to be more effective than ribavirin+interferon (dual therapy) for the treatment of genotype 1 hepatitis C. Since the benefit of these treatments takes place after years, simulation models are needed to pred...
journal_title:World journal of gastroenterology
pub_type: 信件
doi:10.3748/wjg.v18.i23.3032
更新日期:2012-06-21 00:00:00
abstract::Hepatocellular carcinoma (HCC) is one of the most common primary cancers in the world. Surgery is the gold standard for treatment of patients with HCC. Recurrence and metastasis are the major obstacles to further improve the prognosis of HCC. Most recurrences are intrahepatic. However, 30% of the recurrences are extra...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v13.i40.5413
更新日期:2007-10-28 00:00:00
abstract:BACKGROUND:End-stage liver disease caused by non-alcoholic steatohepatitis (NASH) is the second leading indication for liver transplantation. To date, only moderately effective pharmacotherapies exist to treat NASH. Understanding the pathogenesis of NASH is therefore crucial for the development of new therapies. The in...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v26.i33.4933
更新日期:2020-09-07 00:00:00
abstract:AIM:To investigate the effects of autoantibodies against beta(1)-adrenoceptor in hepatitis virus myocarditis on action potential and L-type Ca(2+) currents. METHODS:Fifteen samples of autoantibodies against beta(1)-adrenoceptor positive sera of patients with hepatitis virus myocarditis were obtained and IgGs were puri...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i8.1171
更新日期:2004-04-15 00:00:00
abstract::Pancreatic ductal adenocarcinoma (PDA) is known for its poor prognosis. Most of the patients are diagnosed with advanced stages, when no curative treatment is available. Currently, despite extensive clinical research on PDA, the median overall survival remains short. Diagnosis delay and primary chemo-resistance due to...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v20.i24.7819
更新日期:2014-06-28 00:00:00
abstract:AIM:To investigate the relationship between the methylation status in the SLIT2 and TGFB2 promoters and colonic inflammation in inflammatory bowel disease patients. METHODS:We evaluated the methylation status of 2 genes (SLIT2 and TGFB2) in 226 biopsies taken from 62 colonoscopies of 38 patients (29 ulcerative colitis...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i30.10591
更新日期:2014-08-14 00:00:00
abstract::A 57-year-old man consulted a local hospital because of a persistent slight fever. At the age of 37 years he was diagnosed having B-type hepatitis, but left the liver dysfunction untreated. Twenty years later, he was diagnosed having chronic hepatitis B, hepatocellular carcinoma (HCC) and macrocytic anemia, and referr...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v13.i32.4401
更新日期:2007-08-28 00:00:00
abstract::The chronic inflammatory process underlying inflammatory bowel disease (IBD), comprising Crohn's disease and ulcerative colitis, derives from the interplay of several components in a genetically susceptible host. These components include environmental elements and gut microbiota a dysbiosis. For decades, immune abnorm...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v24.i41.4622
更新日期:2018-11-07 00:00:00
abstract:AIM:To assess CT, MR manifestations and their diagnostic value in hepatic tuberculosis. METHODS:CT findings in 12 cases and MR findings in 4 cases of hepatic tuberculosis proved by surgery or biopsy were retrospectively analyzed. RESULTS:(1) CT findings: One case of serohepatic type of hepatic tuberculosis had multip...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i11.1639
更新日期:2004-06-01 00:00:00
abstract:AIM:To investigate the risk association and compare the onset age of hepatocellular carcinoma (HCC) patients in Taiwan with different genotypes of MDM2-SNP309. METHODS:We analyzed MDM2-SNP309 genotypes from 58 patients with HCC and 138 cancer-free healthy controls consecutively. Genotyping of MDM2-SNP309 was conducted...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.15.5592
更新日期:2009-11-28 00:00:00
abstract:AIM:To evaluate the effects of ethanol on the insulin-like growth factor-I (IGF-I) system involved in c-Jun N-terminal kinase (JNK1/2) and alcoholdehydrogenase (ADH) activity in primary cultured rat hepatocytes. METHODS:Hepatocytes isolated from male Sprague-Dawley rats were incubated with various concentrations of et...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.14.4324
更新日期:2008-07-21 00:00:00
abstract:AIM:To assess the clinicopathological characteristics of duodenal well-differentiated endocrine tumors. METHODS:We examined clinicopathological characteristics in 11 consecutive patients with duodenal well-differentiated endocrine tumors treated by endoscopic therapy or surgery in our hospital from 1992 through 2007. ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i36.4583
更新日期:2010-09-28 00:00:00
abstract:AIM:To determine the incidence of peripheral fractures in patients with celiac disease (CD) and the effect of treatment on fracture risk. METHODS:We compared the incidence and risk of peripheral fractures before and after diagnosis between a cohort of 265 patients who had been diagnosed with CD at least 5 years before...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v17.i25.3035
更新日期:2011-07-07 00:00:00
abstract:AIM:To study the condition and potentiality of human umbilical cord blood stem cells (HUCBSC) to differentiate into hepatocytes in vivo or in vitro. METHODS:In a cell culture study of human umbilical cord blood stem cell (HUCBSC) differentiation, human umbilical cord blood mononuclear cells (HUCBMNC) were separated by...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i25.4014
更新日期:2006-07-07 00:00:00
abstract:AIM:To identify esophageal cancer related gene2 (ECRG2) associated proteins and their possible interactions with ECRG2 gene. METHODS:In the yeast forward two-hybrid system, ECRG2 was fused with the DNA-binding domain (DBD) of Gal4 and human fetal liver cDNA library was fused with the transcriptional activation domain ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v9.i9.1892
更新日期:2003-09-01 00:00:00
abstract:AIM:To analyze loss of heterozygosity (LOH) and homozygous deletion on p53 gene (exon2-3, 4 and 11), chromosome 10q22-10q23 and 22q11.2 -22q12.1 in human hepatocellular carcinoma (HCC). METHODS:PCR and PCR-based microsatellite polymorphism analysis techniques were used. RESULTS:LOH was observed at D10S579 (10q22-10q2...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i13.1975
更新日期:2004-07-01 00:00:00
abstract::AIM:To observe the protective effect of combined i.v. administraction of Yuanhu injection (YHI) and Huoxuehuayu injection-I (HHI-I) against acute pancreatitis (AP) in rabbits.METHODS:Sever acute pancreatitis (SAP) was induced by retrograde infusion of artificial bile juice into biliary-pancreatic duct, and treated wit...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v4.i3.256
更新日期:1998-06-01 00:00:00
abstract::Erythropoietic protoporphyria (EPP) is an extremely rare disease which is often unrecognized as diagnosis. In the recent article Lui et al describe a patient with a new diagnosis of EPP with severe liver injury. Approximately 5%-20% of patients with EPP develop liver manifestations. The most severe complication of EPP...
journal_title:World journal of gastroenterology
pub_type: 评论,信件
doi:10.3748/wjg.v25.i30.4292
更新日期:2019-08-14 00:00:00
abstract:AIM:To study the anti-HBV effect of liposome-encapsulated matrine (Lip-M) in vitro and in vivo. METHODS:2.2.15 cell line was cultured in vitro to observe the effect of Lip-M and matrine on the secretion of HBsAg and HBeAg. The toxicity of Lip-M and matrine to 2.2.15 cell line was also studied by MTT method. In in vivo...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i3.426
更新日期:2005-01-21 00:00:00
abstract:AIM:To investigate whether the changes of gap junction gene connexin messenger RNA in the noncancerous liver tissue of patients with hepatocellular carcinoma (HCC) could play a significant role in its postresection recurrence. METHODS:Seventy-nine consecutive patients having undergone curative resection for HCC entere...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i2.171
更新日期:2005-01-14 00:00:00