BACKGROUND Helicobacter pylori(H.pylori)infection is a major risk factor for chronic gastritis,affecting approximately half of the global population.H.pylori eradication is a popular treatment method for H.pylori-posi...BACKGROUND Helicobacter pylori(H.pylori)infection is a major risk factor for chronic gastritis,affecting approximately half of the global population.H.pylori eradication is a popular treatment method for H.pylori-positive chronic gastritis,but its mecha-nism remains unclear.Urinary metabolomics has been used to elucidate the mechanisms of gastric disease treatment.However,no clinical study has been conducted on urinary metabolomics of chronic gastritis.AIM To elucidate the urinary metabolic profiles during H.pylori eradication in patients with chronic gastritis.METHODS We applied LC–MS-based metabolomics and network pharmacology to in-vestigate the relationships between urinary metabolites and H.pylori-positive chronic gastritis via a clinical follow-up study.RESULTS Our study revealed the different urinary metabolic profiles of H.pylori-positive chronic gastritis before and after H.pylori eradication.The metabolites regulated by H.pylori eradication therapy include cis-aconitic acid,isocitric acid,citric acid,L-tyrosine,L-phenylalanine,L-tryptophan,and hippuric acid,which were involved in four metabolic pathways:(1)Phenylalanine metabolism;(2)phenylalanine,tyrosine,and tryptophan biosynthesis;(3)citrate cycle;and(4)glyoxylate and dicarboxylate metabolism.Integrated metabolomics and network pharmacology revealed that MPO,COMT,TPO,TH,EPX,CMA1,DDC,TPH1,and LPO were the key proteins involved in the biological progress of H.pylori eradication in chronic gastritis.CONCLUSION Our research provides a new perspective for exploring the significance of urinary metabolites in evaluating the treatment and prognosis of H.pylori-positive chronic gastritis patients.展开更多
Background: Gastritis is better evaluated nowadays since the advent of upper gastrointestinal endoscopy. Despite the availability of this workup in Benin Republic, there is a scarcity of data on chronic gastritis. Obj...Background: Gastritis is better evaluated nowadays since the advent of upper gastrointestinal endoscopy. Despite the availability of this workup in Benin Republic, there is a scarcity of data on chronic gastritis. Objective: This work aimed to study the epidemiological and histopathological aspects of chronic gastritis in the Departmental University Teaching Hospital of Borgou Alibori (CHUD-B/A) from 2011 to 2021. Method: This was a retrospective cross-sectional study with descriptive and analytical purposes, carried out from February 23, 2022 to May 23, 2022, among patients who had undergone gastric biopsy and/or gastrectomy from January 2011 to January 2022 (10 year), and whose specimens were sent into the histopathology section of the CHUD-B/A. Non-probability sampling was performed with exhaustive recruitment. A survey form has been used to collect data from patients’ medical records. Pearson’s chi-square and Fisher’s exact tests have been used as appropriate to determine correlations between variables. Result: A total of 310 cases of chronic gastritis were diagnosed in the histopathology section of the CHUD-B/A from 2011 to 2021. This represented a chronic gastritis frequency of 91.45% for all gastric lesions diagnosed throughout the study period. Erythematous gastropathy was the most frequent (70.35%). Helicobacter pylori was present in 36.77% and dysplasia was observed in 12.26% of cases. Erythematous gastropathy was a predictive factor for the absence of gastric dysplasia in histopathology check up (p-value = 0.042). In contrast, intestinal metaplasia was predictive of the presence of gastric dysplasia in histopathology check up (p-value < 0.001). Conclusion: Chronic gastritis is very common in our setting. Systematic biopsy performance in front of an evocative clinical situation followed by histopathological examination may be encouraged.展开更多
BACKGROUND Chronic gastritis(CG) is an inflammatory disease of the gastric mucosa. Shenling-bai-zhu san(SLBZS), a traditional Chinese medicine formula, is widely used for treating CG. Nevertheless, its effects are cur...BACKGROUND Chronic gastritis(CG) is an inflammatory disease of the gastric mucosa. Shenling-bai-zhu san(SLBZS), a traditional Chinese medicine formula, is widely used for treating CG. Nevertheless, its effects are currently unclear.AIM To determine the clinical evidence and potential mechanisms of SLBZS for the treatment of CG.METHODS We systematically searched 3 English(PubMed, Embase, Medline) and 4 Chinese databases(Cochrane Library Central Register of Controlled Trials, China National Knowledge Infrastructure database, Wanfang Data Knowledge Service Platform,and the VIP information resource integration service platform) without language or publication bias restriction. Qualified studies were selected according to pre-set inclusion and exclusion criteria. RevMan 5.3 software was used for meta-analysis and literature quality assessment, Stata 14.0 software was used for sensitivity analysis, GRADE profiler 3.6 was used to evaluate the quality of evidence. And then, network pharmacology analysis was applied to primary research the mechanisms of action of SLBZS on CG.RESULTS Fourteen studies were finally included, covering 1335 participants. Meta-analysis indicated that:(1) SLBZS was superior to conventional therapies [risk ratio(RR):1.29, 95% confidence interval(CI): 1.21 to 1.37, P < 0.00001];(2) SLBZS was better than conventional therapies [RR: 0.24, 95% confidence interval(95%CI): 0.11 to 0.55, P = 0.0007] in terms of recurrence rate and reversal of Helicobacter pylori positivity(RR: 1.20, 95%CI: 1.11 to 1.30,P < 0.00001);and(3) The safety of SLBZS for CG remains unclear. According to the GRADE method, the quality of evidence was not high. Besides, SNZJS might treat CG by acting on related targets and pathways such as EGFR tyrosine kinase inhibitor resistance, the PI3K-Akt signaling pathway, and others.CONCLUSION SLBZS might be useful in treating CG, but long-term effects and specific clinical mechanisms of it maintain unclear. More samples and high-quality clinical experiments should be assessed and verified in the next step.展开更多
BACKGROUND Innate immunity was found to be associated with both persistence of Helicobacter pylori(H.pylori)infection and increased risk of gastric cancer.AIM To identify the risk factors associated with H.pylori infe...BACKGROUND Innate immunity was found to be associated with both persistence of Helicobacter pylori(H.pylori)infection and increased risk of gastric cancer.AIM To identify the risk factors associated with H.pylori infection and to establish the role of TLR9 rs352140 in suppressing or promoting inflammation related to this infection in children.METHODS We performed a study of 155 children with digestive symptoms,who were divided into two groups according to the histopathological exam:Group 1–48 children with H.pylori-induced chronic gastritis,and Group 2–control group.RESULTS Rural area and poor living conditions were significantly associated with H.pylori chronic gastritis(P=0.0042/P<0.0001).Both positive immunoglobulin A anti H.pylori and the rapid urease test were significantly associated with H.pylori infection(P<0.0001).Significantly higher values of leukocytes and neutrophils within the peripheral blood were found in children with H.pylori chronic gastritis(P=0.111/P=0.284).We found a significant positive correlation between the variant TT genotype of TLR9 rs352140 polymorphism and both leucocytes and neutrophils(P=0.0225/P=0.0292).CONCLUSION Variant TT genotype carriers of the TLR9 rs352140 gene polymorphism might have a more severe degree of inflammation.展开更多
AIM:To evaluate fecal calprotectin concentrations(FCCs) in subjects with chronic gastritis and the correlation between FCCs and gastritis activity score.METHODS:FCCs were measured in 61 patients with histological diag...AIM:To evaluate fecal calprotectin concentrations(FCCs) in subjects with chronic gastritis and the correlation between FCCs and gastritis activity score.METHODS:FCCs were measured in 61 patients with histological diagnosis of gastritis and in 74 healthy volunteers.Histological grading of gastritis was performed according to the updated Sydney gastritis classification.Patients were subdivided into 2 groups according to the presence/absence of an active gastritis.Patients with chronic active gastritis were divided into 3 subgroups on the basis of the activity score(mild,moderate,marked).FFCs in relation to Helicobacter pylori(H.pylori) infection and proton pump inhibitor(PPI) use were also evaluated.RESULTS:FCCs in patients with chronic active gastritis were not significantly different to FCCs either in subjects with non active gastritis or in healthy controls.Among patients with chronic active gastritis(even marked),FCCs did not significantly differ according to activity score.No significant differences in FCCs were found when considering H.pylori,as well as when considering PPI chronic use.CONCLUSION:FCCs were not significantly increased in subjects with chronic gastritis,even in those patients with a marked neutrophil infiltration.展开更多
Objective:To dynamically observe the progression of chronic gastritis to gastric cancer(GC)in diseasetraditional Chinese medicine(TCM)pattern rats to provide data for understanding the disease progression and effectiv...Objective:To dynamically observe the progression of chronic gastritis to gastric cancer(GC)in diseasetraditional Chinese medicine(TCM)pattern rats to provide data for understanding the disease progression and effective approaches for drug screening and mechanism exploration.Methods:Wistar rats were randomly divided into control(n=96,half female and half male)and model(n=336,half female and half male)groups.Model rats received free access to N-methyl-N0-nitro-Nnitrosoguanidine(120 mg/mL),sodium deoxycholate(20 mmol/L),and alcohol(45%),and were subjected to intermittent fasting.Mortality rate,body weight,water consumption,food intake,gastric pathology,blood content analysis,and liver and kidney function of model rats were dynamically monitored over 30 weeks.In the 30th week,pattern characteristics were assessed.Gastric pathology and pattern characteristics were observed for an additional 8 weeks to evaluate stability.Results:The overall mortality of the model group was 34.82%(33.10%for females and 36.55%for males)at 30 weeks post-intervention.Inflammatory cell infiltration,glandular atrophy,atypical hyperplasia,and GC manifested successively in the gastric mucosa of rats.In model rats,N-methyl-N0-nitro-N-nitrosoguanidine intake was lower in males than in females,whereas pathological changes in the gastric mucosa occurred earlier in females than in males.Notably,gastric mucosal lesions were more severe in males than in females.Our modeling methods maintained stable gastric mucosal lesions for at least 8 weeks after final intervention.The pattern characteristics observed in model rats at the 30th and 38th week were consistent with those of spleen deficiency,blood stasis,and yin deficiency pattern.Blood content and indexes of liver and kidney function in the model group were normal.Conclusion:Our findings provide evidence for the pathological stages underscoring the progression of chronic gastritis to GC in disease-TCM pattern rats,which may facilitate development of relevant pharmacotherapies.展开更多
Through reviews of chronic gastritis treatment literatures in the past 10 years,it has been found that most patients with chronic gastritis also have insomnia and other symptoms in addition to the manifestations of ga...Through reviews of chronic gastritis treatment literatures in the past 10 years,it has been found that most patients with chronic gastritis also have insomnia and other symptoms in addition to the manifestations of gastritis,in which modem medicine has found clear correlations between the two.In Professor Xinli Wen's practice,the professor believes that the pathogenesis of this disease is a mixture of cold and heat.In regard to treating the disease,the characteristic of"the desire to solve Jueyin disease"is well-grasped.Professor Wen emphasizes on the harmonization of the liver and spleen as well as the restrain from following the original prescription and application of its medicine.Therefore,she used Mume pill to increase and decrease the upper temperature and lower temperature in regulating cold and heat.展开更多
AIM: To investigate the potential therapeutic effect of exopolysaccharide (EPS)-producing Streptococcus thermophilus (S. thermophilus) CRL 1190 fermented milk on chronic gastritis in Balb/c mice. METHODS: Balb/c mice ...AIM: To investigate the potential therapeutic effect of exopolysaccharide (EPS)-producing Streptococcus thermophilus (S. thermophilus) CRL 1190 fermented milk on chronic gastritis in Balb/c mice. METHODS: Balb/c mice were fed with the fermented milk for 7 d after inducing gastritis with acetyl-salicylic acid (ASA, 400 mg/kg body weight per day for 10 d). Omeprazole was included in this study as a positive therapeutic control. The gastric in? ammatory activity was evaluated from gastric histology and in? ammation score, number of interleukin-10 (IL-10), interferon-γ (INFγ) and tumor necrosis factor-α (TNF-α) cytokine-producing cells in the gastric mucosa, and thickness of the mucus layer. RESULTS: Animals receiving treatment with the EPS-producing S. thermophilus CRL 1190 fermented milk showed a conserved gastric mucosa structure similar to that of healthy animals. In? ammation scores of the fermented milk-treated mice were lower than those of mice in the gastritis group (0.2 ± 0.03 vs 2.0 ± 0.6, P < 0.05). A marked decrease in INFγ+ (15 ± 1.0 vs 28 ± 1.2, P < 0.05) and TNF-α+ (16 ± 3.0 vs 33 ± 3.0, P < 0.05) cells and an increase in IL-10+ (28 ± 1.5 vs 14 ± 1.3, P < 0.05) cells compared to the gastritis group, was observed. Also, an increase in the thickness of the mucus gel layer (2.2 ± 0.6 vs 1.0 ± 0.3; 5.1 ± 0.8 vs 1.5 ± 0.4 in the corpus and antrum mucosa, respectively, P < 0.05) compared with the gastritis group was noted. A milk suspension of the purif ied EPS from S. thermophilus CRL1190 was also effective as therapy for gastritis.展开更多
AIM: To investigate the influences of bile reflux on profiles of gastric mucosal lesions in patients with dyspepsia or chronic gastritis.METHODS: A total of 49 patients diagnosed with dyspepsia and chronic gastritis u...AIM: To investigate the influences of bile reflux on profiles of gastric mucosal lesions in patients with dyspepsia or chronic gastritis.METHODS: A total of 49 patients diagnosed with dyspepsia and chronic gastritis underwent 24-h ambulatory andsimultaneous monitoring of intragastric bilirubin absorbance and pH values, and then they were divided into bile refluxpositive group and bile reflux negative group. Severity of pathological changes in gastric mucosa including activeinflammation, chronic inflammation, intestinal metaplasia, atrophy and dysplasia as well as Helicobacter pylori (H pylori) infection at the corpus, incisura and antrum were determined respectively according to update Sydney system criteria. The profiles of gastric mucosal lesions in the two groups were compared, and correlations between time-percentage of gastric bilirubin absorbance ＞0.14 and severity of gastric mucosal lesions as well as time-percentage of gastric pH ＞4 were analyzed respectively. RESULTS: Thirty-eight patients (21 men and 17 women, mean age 44.2 years, range 25-61 years) were found existing with bile reflux (gastric bilirubin absorbance ＞0.14) and 11 patients (7 men and 4 women, mean age 46.2 years,range 29-54 years) were bile reflux negative. In dyspepsia patients with bile reflux, the mucosal lesions such as active inflammation, chronic inflammation, intestinal metaplasia, atrophy or H pylori infection in the whole stomach, especially in the corpus and incisura, were significantly more severe than those in dyspepsia patients without bile reflux. Moreover, the bile reflux time was well correlated with the severity of pathological changes of gastric mucosa as well as H pylori colonization in the near-end stomach, especially in the corpus region. No relevance was found between the time of bile reflux and pH ＞4 in gastric cavity. CONCLUSION: Bile reflux contributes a lot to mucosal lesions in the whole stomach, may facilitate H pylori colonization in the corpus region, and has no influence on acid-exposing status of gastric mucosa in patients with dyspepsia or chronic gastritis.展开更多
AIM: To evaluate the correlation between CD4, CD8 cell infiltration in gastric mucosa, Helicobacter pylori(H pylori)infection and symptoms or the assemblage of symptoms in cases with chronic gastritis.METHODS: Biopsy ...AIM: To evaluate the correlation between CD4, CD8 cell infiltration in gastric mucosa, Helicobacter pylori(H pylori)infection and symptoms or the assemblage of symptoms in cases with chronic gastritis.METHODS: Biopsy samples at the gastric antrum were obtained from 62 patients with chronic gastritis. CD4 and CD8 cell infiltration was evaluated by immunohistochemical assays on frozen sections of the biopsy samples. Fifteen symptoms referring to digestion-related activity and nondigestion related activity were observed. The correlation between lymphocyte infiltration and each symptom or symptom assemblage was analyzed by logistic regression and K-mean cluster methods.RESULTS: CD4 cell infiltrations in gastric mucosa were much more in patients with H pylori infection, while CD8 cell infiltrations were similar in patients with or without H pylori infection. Logistic regression analysis showed that the symptoms including heavy feeling in head or body (t= 2.563), and thirst (t= 2.478) were significantly related with CD4 cell infiltration in gastric mucosa (P＜0.05), and cool limbs with aversion to cold were related with CD8cell infiltration (t = 2.872, P＜0.05). Further analysis showed that non-digestive related symptom assemblage could increase the predicted percentage of CD4 and CD8cell infiltration in gastric mucosa, including lower CD4infiltration by 12.5%, higher CD8 infiltration by 33.3%,and also non-H pylori infection by 23.6%.K-means cluster analysis of all symptoms and CD4 and CD8 cell infiltration in gastric mucosa showed a similar tendency to increase the predicted percentage of CD4, CD8 cell infiltration and H pylori infection.CONCLUSION: Based on correlation between the gastric mucosa lymphocyte infiltration, H pylori infection and clinical symptoms, symptoms or symptomatic assemblages play an important role in making further classification of chronic gastritis, which might help find a more specific therapy for chronic gastritis.展开更多
AIM To investigate the roles of the neuropeptides vasoactive intestinal peptide(VIP), substance P(SP), and calcitonin gene-related peptide(CGRP) in chronic gastritis and duodenitis in children.METHODS Biopsy samples f...AIM To investigate the roles of the neuropeptides vasoactive intestinal peptide(VIP), substance P(SP), and calcitonin gene-related peptide(CGRP) in chronic gastritis and duodenitis in children.METHODS Biopsy samples from the gastric and duodenal mucosa of 52 patients and 30 control subjects were obtained. Samples were taken for pathological examination, immunohistochemical staining, enzyme activity measurements and quantitative measurements of tissue peptide levels.RESULTS We observed differential effects of the disease on peptide levels, which were somewhat different from previously reported changes in chronic gastritis in adults. Specifically, SP was increased and CGRP and VIP were decreased in patients with gastritis. The changes were more prominent at sites where gastritis was severe, but significant changes were also observedin neighboring areas where gastritis was less severe. Furthermore, the degree of changes was correlated with the pathological grade of the disease. The expression of CD10, the enzyme primarily involved in SP hydrolysis, was also decreased in patients with duodenitis.CONCLUSION Based on these findings, we propose that decreased levels of VIP and CGRP and increased levels of SP contribute to pathological changes in gastric mucosa. Hence, new treatments targeting these molecules may have therapeutic and preventive effects.展开更多
After decades of research, functional dyspepsia (FD) remains one of the most elusive gastrointestinal disorders. Endoscopic appearance of mild inflammation of the gastric mucosa without ulceration and microscopic evid...After decades of research, functional dyspepsia (FD) remains one of the most elusive gastrointestinal disorders. Endoscopic appearance of mild inflammation of the gastric mucosa without ulceration and microscopic evidence of mild chronic inflammation are often considered as normal findings since no etiology could be found other than H. Pylori. Enteroviruses infect the gastrointestinal tract and have been shown to persist in the stomach of symptomatic patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). In this study, we evaluated FD patients with and without the diagnosis of ME/CFS, and were able to support the viral protein staining with finding of double-stranded RNA in 63% of the same stomach biopsies by immunoperoxidase staining. Furthermore, we clarified the possible cross-reaction with creatine kinase brain subtype (CKB), present in parietal cells, using antibody competition experiments and western blot analysis of stomach proteins. Viral protein+ and dsRNA+ biopsies were infectious in SCID mice. More research is needed to elucidate the mechanism of enterovirus infection of the stomach associated with FD and chronic gastritis.展开更多
AIM: The role of Helicobacter pylori (H pylori) infection in gastric acid secretion of patients with chronic gastritisremains controversial. This study was designed to elucidate the effect of H pylori on H+/K+-ATPase ...AIM: The role of Helicobacter pylori (H pylori) infection in gastric acid secretion of patients with chronic gastritisremains controversial. This study was designed to elucidate the effect of H pylori on H+/K+-ATPase activities in gastric biopsy specimens.METHODS: Eighty-two patients with chronic gastritis who had undergone upper endoscopy were included in this study. H pylori infection was confirmed by rapid urease test and histology. Gastric H+/K+-ATPase activities and serum gastrin concentrations were measured by an enzymatic method and radioimmunoassay, respectively. For those patients who received triple therapy for eradicating H pylori, changes in the activity of gastric H+/K+-ATPase and serum gastrin levels were also measured. RESULTS: The mean gastric H+/K+-ATPase activity in H pyloripositive group (42 patients) was slightly higher than thatin H pylori-negative group (29 patients) (169.65±52.9 and eradication of H pylori, the gastric H+/K+-ATPase activities slightly decreased compared to prior therapy (165.03±59.50 The mean basal gastrin concentration was slightly higher in H pylori-positive patients than in H pylori-negative patients (87.92±39.65 pg/mL vs75.04± 42.57 pg/mL, P= 0.228). The gastrin levels fell significantly after the eradication of Hpylori. (Before treatment 87.00±30.78 pg/mL, aftertreatment 64.73±18.96 pg/mL, P = 0.015).CONCLUSION: Gastric H+/K+-ATPase activities are not associated with H pylori status in patients with chronicgastritis.展开更多
AIM: To determine the HLA-DQ locus in Mexican patients with Chronic gastritis and gastric adenocarcinoma. METHODS: Oligotyping for HLA-DQ locus was performed in 45 Mexican patients with chronic gastritis and 13 Mexica...AIM: To determine the HLA-DQ locus in Mexican patients with Chronic gastritis and gastric adenocarcinoma. METHODS: Oligotyping for HLA-DQ locus was performed in 45 Mexican patients with chronic gastritis and 13 Mexican patients with diffuse-type gastric adenocarcinoma, and was then compared with 99 clinically healthy unrelated individuals. H pylori infection and CagA status were assessed in patients by enzyme-linked immunosor-bent assay (ELISA) method. RESULTS: We found a significant increased frequency of HLA-DQB1*0401 allele in H pylori-positive patients with chronic gastritis when compared with healthy subjects [19 vs 0%, P= 1 × 10-7, odds ratio (OR) = 4.96; 95% confidence interval (95% CI), 3.87-6.35]. We also found a significant increased frequency of HLA-DQB1*0501 in patients with diffuse-type gastric carcinoma in comparison with healthy individuals (P = 1 × 10-6, OR = 13.07; 95% CI, 2.82-85.14). CONCLUSION: HLA-DQ locus may play a different role in the development of H pylori-related chronic gastritis and diffuse-type gastric adenocarcinoma in the Mexican Mestizo population.展开更多
Objective: Gastric cancer(GC) is one of the leading causes of death in China and other Asian countries.Recently, gastric endoscopy has become the main approach for GC screening, but the identification of high-risk ind...Objective: Gastric cancer(GC) is one of the leading causes of death in China and other Asian countries.Recently, gastric endoscopy has become the main approach for GC screening, but the identification of high-risk individuals remains a challenge in GC screening programs.Methods: There were 7,302 patients with chronic gastritis involved in this study. Endoscopic examinations were performed, and their demographic characteristics and lifestyle data were collected. Each possible associated factor of GC/premalignant and precursor lesions was evaluated by univariate and multivariate logistic regressions.Nomograms were used for visualization of those models, and receiver operating characteristic(ROC) curve analysis was used to present the predictive accuracy.Results: We detected 8(0.11%) gastric adenocarcinomas, 17(0.23%) dysplasia cases, 14(0.19%) hyperplasia cases, 52(0.71%) intestinal metaplasia cases, 217(2.97%) inflammatory lesions, 141(1.93%) gastric ulcers, 10(0.14%) atrophic gastritis cases, 1,365(18.69%) erosive gastritis cases, and 5,957(81.58%) superficial gastritis cases in 7,302 patients. The age(P<0.001), gender(P=0.086), labor intensity(P=0.018) and leek food intake(P=0.143)were identified as independent predictive factors of GC/premalignant lesions possibility. The corresponding nomogram exhibited an area under the curve(AUC) [95% confidence interval(95% CI)] of 0.82(0.74–0.89) for the modeling group and 0.80(0.75–0.85) for the validation group. The age(P=0.002), gender(P=0.024), smoking(P=0.002) and leek food intake(P=0.039) were independent predictive factors of precursor lesions possibility. The corresponding nomogram exhibited an AUC(95% CI) of 0.62(0.60–0.65) for the modeling group and 0.61(0.59–0.63) for the validation group.Conclusions: We identified several potential associated factors and provided a preclinical nomogram with the potential to predict the possibility of GC/premalignant and precursor lesions.展开更多
AIM: To evaluate the association between polymorphisms XRCC1 Arg194Trp and Arg399Gln and XRCC3Thr241Met and the risk for chronic gastritis and gastric cancer, in a Southeastern Brazilian population.METHODS: Genotyping...AIM: To evaluate the association between polymorphisms XRCC1 Arg194Trp and Arg399Gln and XRCC3Thr241Met and the risk for chronic gastritis and gastric cancer, in a Southeastern Brazilian population.METHODS: Genotyping by PCR-RFLP was carried out on 202 patients with chronic gastritis (CG) and 160 patients with gastric cancer (GC), matched to 202 (C1) and 150(C2) controls, respectively.RESULTS: No differences were observed among the studied grou ps with regard to the genotype distribution of XRCC1 codons 194 and 399 and of XRCC3 codon 241. However, the combined analyses of the three variant alleles (194Trp, 399Gln and 241Met) showed an increased risk for chronic gastritis when compared to the GC group. Moreover, an interaction between the polymorphic alleles and demographic and environmental factors was observed in the CG and GC groups. XRCC1 194Trp was associated with smoking in the CG group,while the variant alleles XRCC1 399Gln and XRCC3241Met were related with gender, smoking, drinking and H pylori infection in the CG and GC groups.CONCLUSION: Our results showed no evidence of a rela-tionship between the polymorphisms XRCC1Arg194Trp and Arg399Gln and XRCC3 Thr241Met and the risk of chronic gastritis and gastric cancer in the Brazilian population, but the combined effect of these variants may interact to increase the risk for chronic gastritis,considered a premalignant lesion. Our data also indicate a gene-environment interaction in the susceptibility to chronic gastritis and gastric cancer.展开更多
To summarize the current views and insights on associations between Helicobacter pylori(H. pylori)-related chronic gastritis and colorectal neoplasm, we reviewed recent studies to clarify whether H. pylori infection/H...To summarize the current views and insights on associations between Helicobacter pylori(H. pylori)-related chronic gastritis and colorectal neoplasm, we reviewed recent studies to clarify whether H. pylori infection/H. pylori-related chronic gastritis is associated with an elevated risk of colorectal neoplasm. Recent studies based on large databases with careful control for confounding variables have clearly demonstrated an increased risk of colorectal neoplasm associated with H. pylori infection. The correlation between H. pylori-related chronic atrophic gastritis(CAG) and colorectal neoplasm has only been examined in a limited number of studies. A recent large study using a national histopathological database, and our study based on the stage of H. pylori-related chronic gastritis as determined by serum levels of H. pylori antibody titer and pepsinogen, indicatedthat H. pylori-related CAG confers an increased risk of colorectal neoplasm, and more extensive atrophic gastritis will probably be associated with even higher risk of neoplasm. In addition, our study suggested that the activity of H. pylori-related chronic gastritis is correlated with colorectal neoplasm risk. H. pylori-related chronic gastritis could be involved in an increased risk of colorectal neoplasm that appears to be enhanced by the progression of gastric atrophy and the presence of active inflammation.展开更多
Ninety-two asymptomafic subjects were investigated to determine whether they were in-fected with Helicobacter pylori(HP)by means of fiber gastroscopy, urease test andWarthin-Starry silver stain.As a result of this wor...Ninety-two asymptomafic subjects were investigated to determine whether they were in-fected with Helicobacter pylori(HP)by means of fiber gastroscopy, urease test andWarthin-Starry silver stain.As a result of this work,49 subjects with HP infection were found.Under gastroscope,24 of 92 subjects had normal gastric mucosa 45 suffered frompiebaldism-like congestion of the gastric mucosa and 23 mucosal erosion,but the differencesamong the detectable rotes of them had no statistical significance(P】0.05).Forty-six of the subjects with HP infection were seen in the 67 patients with gastritis and only 3 in the subjectswith normal mucosa.The positive rates of HP infection in the patients with moderate and serfous gastritis were significant highly(P【0.01),as compared with that in mild gastritis.It could besuggested that HP infection and the gastritis associated with it may universally exist in“healthy persons”without symptom.展开更多
We had treated 102 cases of obstinate peptic ulcer and chronic gastritis with ametal ring embedded in Zusanli acupoint since October 1989 to October 1992,and got satisfactorytherapeutic effects.The total effective rat...We had treated 102 cases of obstinate peptic ulcer and chronic gastritis with ametal ring embedded in Zusanli acupoint since October 1989 to October 1992,and got satisfactorytherapeutic effects.The total effective rate is 96.08%,the cure rate of peptic ulcer is 87.32%,therecurrence rate is significantly lower than that of control group(P【0.001),and it has no side-effect.展开更多
基金Supported by Shanxi Provincial Health Commission,No.2019022.
文摘BACKGROUND Helicobacter pylori(H.pylori)infection is a major risk factor for chronic gastritis,affecting approximately half of the global population.H.pylori eradication is a popular treatment method for H.pylori-positive chronic gastritis,but its mecha-nism remains unclear.Urinary metabolomics has been used to elucidate the mechanisms of gastric disease treatment.However,no clinical study has been conducted on urinary metabolomics of chronic gastritis.AIM To elucidate the urinary metabolic profiles during H.pylori eradication in patients with chronic gastritis.METHODS We applied LC–MS-based metabolomics and network pharmacology to in-vestigate the relationships between urinary metabolites and H.pylori-positive chronic gastritis via a clinical follow-up study.RESULTS Our study revealed the different urinary metabolic profiles of H.pylori-positive chronic gastritis before and after H.pylori eradication.The metabolites regulated by H.pylori eradication therapy include cis-aconitic acid,isocitric acid,citric acid,L-tyrosine,L-phenylalanine,L-tryptophan,and hippuric acid,which were involved in four metabolic pathways:(1)Phenylalanine metabolism;(2)phenylalanine,tyrosine,and tryptophan biosynthesis;(3)citrate cycle;and(4)glyoxylate and dicarboxylate metabolism.Integrated metabolomics and network pharmacology revealed that MPO,COMT,TPO,TH,EPX,CMA1,DDC,TPH1,and LPO were the key proteins involved in the biological progress of H.pylori eradication in chronic gastritis.CONCLUSION Our research provides a new perspective for exploring the significance of urinary metabolites in evaluating the treatment and prognosis of H.pylori-positive chronic gastritis patients.
文摘Background: Gastritis is better evaluated nowadays since the advent of upper gastrointestinal endoscopy. Despite the availability of this workup in Benin Republic, there is a scarcity of data on chronic gastritis. Objective: This work aimed to study the epidemiological and histopathological aspects of chronic gastritis in the Departmental University Teaching Hospital of Borgou Alibori (CHUD-B/A) from 2011 to 2021. Method: This was a retrospective cross-sectional study with descriptive and analytical purposes, carried out from February 23, 2022 to May 23, 2022, among patients who had undergone gastric biopsy and/or gastrectomy from January 2011 to January 2022 (10 year), and whose specimens were sent into the histopathology section of the CHUD-B/A. Non-probability sampling was performed with exhaustive recruitment. A survey form has been used to collect data from patients’ medical records. Pearson’s chi-square and Fisher’s exact tests have been used as appropriate to determine correlations between variables. Result: A total of 310 cases of chronic gastritis were diagnosed in the histopathology section of the CHUD-B/A from 2011 to 2021. This represented a chronic gastritis frequency of 91.45% for all gastric lesions diagnosed throughout the study period. Erythematous gastropathy was the most frequent (70.35%). Helicobacter pylori was present in 36.77% and dysplasia was observed in 12.26% of cases. Erythematous gastropathy was a predictive factor for the absence of gastric dysplasia in histopathology check up (p-value = 0.042). In contrast, intestinal metaplasia was predictive of the presence of gastric dysplasia in histopathology check up (p-value < 0.001). Conclusion: Chronic gastritis is very common in our setting. Systematic biopsy performance in front of an evocative clinical situation followed by histopathological examination may be encouraged.
文摘BACKGROUND Chronic gastritis(CG) is an inflammatory disease of the gastric mucosa. Shenling-bai-zhu san(SLBZS), a traditional Chinese medicine formula, is widely used for treating CG. Nevertheless, its effects are currently unclear.AIM To determine the clinical evidence and potential mechanisms of SLBZS for the treatment of CG.METHODS We systematically searched 3 English(PubMed, Embase, Medline) and 4 Chinese databases(Cochrane Library Central Register of Controlled Trials, China National Knowledge Infrastructure database, Wanfang Data Knowledge Service Platform,and the VIP information resource integration service platform) without language or publication bias restriction. Qualified studies were selected according to pre-set inclusion and exclusion criteria. RevMan 5.3 software was used for meta-analysis and literature quality assessment, Stata 14.0 software was used for sensitivity analysis, GRADE profiler 3.6 was used to evaluate the quality of evidence. And then, network pharmacology analysis was applied to primary research the mechanisms of action of SLBZS on CG.RESULTS Fourteen studies were finally included, covering 1335 participants. Meta-analysis indicated that:(1) SLBZS was superior to conventional therapies [risk ratio(RR):1.29, 95% confidence interval(CI): 1.21 to 1.37, P < 0.00001];(2) SLBZS was better than conventional therapies [RR: 0.24, 95% confidence interval(95%CI): 0.11 to 0.55, P = 0.0007] in terms of recurrence rate and reversal of Helicobacter pylori positivity(RR: 1.20, 95%CI: 1.11 to 1.30,P < 0.00001);and(3) The safety of SLBZS for CG remains unclear. According to the GRADE method, the quality of evidence was not high. Besides, SNZJS might treat CG by acting on related targets and pathways such as EGFR tyrosine kinase inhibitor resistance, the PI3K-Akt signaling pathway, and others.CONCLUSION SLBZS might be useful in treating CG, but long-term effects and specific clinical mechanisms of it maintain unclear. More samples and high-quality clinical experiments should be assessed and verified in the next step.
基金Supported by University of Medicine,Pharmacy,Sciences and Technology“George Emil Palade”of Târgu Mureş,Romania,No.293/6/14.01.2020.
文摘BACKGROUND Innate immunity was found to be associated with both persistence of Helicobacter pylori(H.pylori)infection and increased risk of gastric cancer.AIM To identify the risk factors associated with H.pylori infection and to establish the role of TLR9 rs352140 in suppressing or promoting inflammation related to this infection in children.METHODS We performed a study of 155 children with digestive symptoms,who were divided into two groups according to the histopathological exam:Group 1–48 children with H.pylori-induced chronic gastritis,and Group 2–control group.RESULTS Rural area and poor living conditions were significantly associated with H.pylori chronic gastritis(P=0.0042/P<0.0001).Both positive immunoglobulin A anti H.pylori and the rapid urease test were significantly associated with H.pylori infection(P<0.0001).Significantly higher values of leukocytes and neutrophils within the peripheral blood were found in children with H.pylori chronic gastritis(P=0.111/P=0.284).We found a significant positive correlation between the variant TT genotype of TLR9 rs352140 polymorphism and both leucocytes and neutrophils(P=0.0225/P=0.0292).CONCLUSION Variant TT genotype carriers of the TLR9 rs352140 gene polymorphism might have a more severe degree of inflammation.
文摘AIM:To evaluate fecal calprotectin concentrations(FCCs) in subjects with chronic gastritis and the correlation between FCCs and gastritis activity score.METHODS:FCCs were measured in 61 patients with histological diagnosis of gastritis and in 74 healthy volunteers.Histological grading of gastritis was performed according to the updated Sydney gastritis classification.Patients were subdivided into 2 groups according to the presence/absence of an active gastritis.Patients with chronic active gastritis were divided into 3 subgroups on the basis of the activity score(mild,moderate,marked).FFCs in relation to Helicobacter pylori(H.pylori) infection and proton pump inhibitor(PPI) use were also evaluated.RESULTS:FCCs in patients with chronic active gastritis were not significantly different to FCCs either in subjects with non active gastritis or in healthy controls.Among patients with chronic active gastritis(even marked),FCCs did not significantly differ according to activity score.No significant differences in FCCs were found when considering H.pylori,as well as when considering PPI chronic use.CONCLUSION:FCCs were not significantly increased in subjects with chronic gastritis,even in those patients with a marked neutrophil infiltration.
基金This study was supported by the Major Innovative Drug Development Project from the Ministry of Science and Technology of the People's Republic of China(2017ZX09301011).
文摘Objective:To dynamically observe the progression of chronic gastritis to gastric cancer(GC)in diseasetraditional Chinese medicine(TCM)pattern rats to provide data for understanding the disease progression and effective approaches for drug screening and mechanism exploration.Methods:Wistar rats were randomly divided into control(n=96,half female and half male)and model(n=336,half female and half male)groups.Model rats received free access to N-methyl-N0-nitro-Nnitrosoguanidine(120 mg/mL),sodium deoxycholate(20 mmol/L),and alcohol(45%),and were subjected to intermittent fasting.Mortality rate,body weight,water consumption,food intake,gastric pathology,blood content analysis,and liver and kidney function of model rats were dynamically monitored over 30 weeks.In the 30th week,pattern characteristics were assessed.Gastric pathology and pattern characteristics were observed for an additional 8 weeks to evaluate stability.Results:The overall mortality of the model group was 34.82%(33.10%for females and 36.55%for males)at 30 weeks post-intervention.Inflammatory cell infiltration,glandular atrophy,atypical hyperplasia,and GC manifested successively in the gastric mucosa of rats.In model rats,N-methyl-N0-nitro-N-nitrosoguanidine intake was lower in males than in females,whereas pathological changes in the gastric mucosa occurred earlier in females than in males.Notably,gastric mucosal lesions were more severe in males than in females.Our modeling methods maintained stable gastric mucosal lesions for at least 8 weeks after final intervention.The pattern characteristics observed in model rats at the 30th and 38th week were consistent with those of spleen deficiency,blood stasis,and yin deficiency pattern.Blood content and indexes of liver and kidney function in the model group were normal.Conclusion:Our findings provide evidence for the pathological stages underscoring the progression of chronic gastritis to GC in disease-TCM pattern rats,which may facilitate development of relevant pharmacotherapies.
文摘Through reviews of chronic gastritis treatment literatures in the past 10 years,it has been found that most patients with chronic gastritis also have insomnia and other symptoms in addition to the manifestations of gastritis,in which modem medicine has found clear correlations between the two.In Professor Xinli Wen's practice,the professor believes that the pathogenesis of this disease is a mixture of cold and heat.In regard to treating the disease,the characteristic of"the desire to solve Jueyin disease"is well-grasped.Professor Wen emphasizes on the harmonization of the liver and spleen as well as the restrain from following the original prescription and application of its medicine.Therefore,she used Mume pill to increase and decrease the upper temperature and lower temperature in regulating cold and heat.
基金Supported by CONICET, ANPCyT (project BID 1728 OC/AR PICTR 20801) and CIUNT, Argentina
文摘AIM: To investigate the potential therapeutic effect of exopolysaccharide (EPS)-producing Streptococcus thermophilus (S. thermophilus) CRL 1190 fermented milk on chronic gastritis in Balb/c mice. METHODS: Balb/c mice were fed with the fermented milk for 7 d after inducing gastritis with acetyl-salicylic acid (ASA, 400 mg/kg body weight per day for 10 d). Omeprazole was included in this study as a positive therapeutic control. The gastric in? ammatory activity was evaluated from gastric histology and in? ammation score, number of interleukin-10 (IL-10), interferon-γ (INFγ) and tumor necrosis factor-α (TNF-α) cytokine-producing cells in the gastric mucosa, and thickness of the mucus layer. RESULTS: Animals receiving treatment with the EPS-producing S. thermophilus CRL 1190 fermented milk showed a conserved gastric mucosa structure similar to that of healthy animals. In? ammation scores of the fermented milk-treated mice were lower than those of mice in the gastritis group (0.2 ± 0.03 vs 2.0 ± 0.6, P < 0.05). A marked decrease in INFγ+ (15 ± 1.0 vs 28 ± 1.2, P < 0.05) and TNF-α+ (16 ± 3.0 vs 33 ± 3.0, P < 0.05) cells and an increase in IL-10+ (28 ± 1.5 vs 14 ± 1.3, P < 0.05) cells compared to the gastritis group, was observed. Also, an increase in the thickness of the mucus gel layer (2.2 ± 0.6 vs 1.0 ± 0.3; 5.1 ± 0.8 vs 1.5 ± 0.4 in the corpus and antrum mucosa, respectively, P < 0.05) compared with the gastritis group was noted. A milk suspension of the purif ied EPS from S. thermophilus CRL1190 was also effective as therapy for gastritis.
基金Supported by the Digestive Key Laboratory Opening Foundation of Ministry of Public Health, No. WKL200004
文摘AIM: To investigate the influences of bile reflux on profiles of gastric mucosal lesions in patients with dyspepsia or chronic gastritis.METHODS: A total of 49 patients diagnosed with dyspepsia and chronic gastritis underwent 24-h ambulatory andsimultaneous monitoring of intragastric bilirubin absorbance and pH values, and then they were divided into bile refluxpositive group and bile reflux negative group. Severity of pathological changes in gastric mucosa including activeinflammation, chronic inflammation, intestinal metaplasia, atrophy and dysplasia as well as Helicobacter pylori (H pylori) infection at the corpus, incisura and antrum were determined respectively according to update Sydney system criteria. The profiles of gastric mucosal lesions in the two groups were compared, and correlations between time-percentage of gastric bilirubin absorbance ＞0.14 and severity of gastric mucosal lesions as well as time-percentage of gastric pH ＞4 were analyzed respectively. RESULTS: Thirty-eight patients (21 men and 17 women, mean age 44.2 years, range 25-61 years) were found existing with bile reflux (gastric bilirubin absorbance ＞0.14) and 11 patients (7 men and 4 women, mean age 46.2 years,range 29-54 years) were bile reflux negative. In dyspepsia patients with bile reflux, the mucosal lesions such as active inflammation, chronic inflammation, intestinal metaplasia, atrophy or H pylori infection in the whole stomach, especially in the corpus and incisura, were significantly more severe than those in dyspepsia patients without bile reflux. Moreover, the bile reflux time was well correlated with the severity of pathological changes of gastric mucosa as well as H pylori colonization in the near-end stomach, especially in the corpus region. No relevance was found between the time of bile reflux and pH ＞4 in gastric cavity. CONCLUSION: Bile reflux contributes a lot to mucosal lesions in the whole stomach, may facilitate H pylori colonization in the corpus region, and has no influence on acid-exposing status of gastric mucosa in patients with dyspepsia or chronic gastritis.
基金Supported by the National Science Foundation, China, No. 90209002 and 90209032Key Grant from National Administration of Traditional Chinese Medicine, No. 000-J-Z-02 Beijing Creative Human Resource Plan
文摘AIM: To evaluate the correlation between CD4, CD8 cell infiltration in gastric mucosa, Helicobacter pylori(H pylori)infection and symptoms or the assemblage of symptoms in cases with chronic gastritis.METHODS: Biopsy samples at the gastric antrum were obtained from 62 patients with chronic gastritis. CD4 and CD8 cell infiltration was evaluated by immunohistochemical assays on frozen sections of the biopsy samples. Fifteen symptoms referring to digestion-related activity and nondigestion related activity were observed. The correlation between lymphocyte infiltration and each symptom or symptom assemblage was analyzed by logistic regression and K-mean cluster methods.RESULTS: CD4 cell infiltrations in gastric mucosa were much more in patients with H pylori infection, while CD8 cell infiltrations were similar in patients with or without H pylori infection. Logistic regression analysis showed that the symptoms including heavy feeling in head or body (t= 2.563), and thirst (t= 2.478) were significantly related with CD4 cell infiltration in gastric mucosa (P＜0.05), and cool limbs with aversion to cold were related with CD8cell infiltration (t = 2.872, P＜0.05). Further analysis showed that non-digestive related symptom assemblage could increase the predicted percentage of CD4 and CD8cell infiltration in gastric mucosa, including lower CD4infiltration by 12.5%, higher CD8 infiltration by 33.3%,and also non-H pylori infection by 23.6%.K-means cluster analysis of all symptoms and CD4 and CD8 cell infiltration in gastric mucosa showed a similar tendency to increase the predicted percentage of CD4, CD8 cell infiltration and H pylori infection.CONCLUSION: Based on correlation between the gastric mucosa lymphocyte infiltration, H pylori infection and clinical symptoms, symptoms or symptomatic assemblages play an important role in making further classification of chronic gastritis, which might help find a more specific therapy for chronic gastritis.
基金Supported by Akdeniz University Research Unit,Antalya,Turkey,No.2012.01.0103.012
文摘AIM To investigate the roles of the neuropeptides vasoactive intestinal peptide(VIP), substance P(SP), and calcitonin gene-related peptide(CGRP) in chronic gastritis and duodenitis in children.METHODS Biopsy samples from the gastric and duodenal mucosa of 52 patients and 30 control subjects were obtained. Samples were taken for pathological examination, immunohistochemical staining, enzyme activity measurements and quantitative measurements of tissue peptide levels.RESULTS We observed differential effects of the disease on peptide levels, which were somewhat different from previously reported changes in chronic gastritis in adults. Specifically, SP was increased and CGRP and VIP were decreased in patients with gastritis. The changes were more prominent at sites where gastritis was severe, but significant changes were also observedin neighboring areas where gastritis was less severe. Furthermore, the degree of changes was correlated with the pathological grade of the disease. The expression of CD10, the enzyme primarily involved in SP hydrolysis, was also decreased in patients with duodenitis.CONCLUSION Based on these findings, we propose that decreased levels of VIP and CGRP and increased levels of SP contribute to pathological changes in gastric mucosa. Hence, new treatments targeting these molecules may have therapeutic and preventive effects.
文摘After decades of research, functional dyspepsia (FD) remains one of the most elusive gastrointestinal disorders. Endoscopic appearance of mild inflammation of the gastric mucosa without ulceration and microscopic evidence of mild chronic inflammation are often considered as normal findings since no etiology could be found other than H. Pylori. Enteroviruses infect the gastrointestinal tract and have been shown to persist in the stomach of symptomatic patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). In this study, we evaluated FD patients with and without the diagnosis of ME/CFS, and were able to support the viral protein staining with finding of double-stranded RNA in 63% of the same stomach biopsies by immunoperoxidase staining. Furthermore, we clarified the possible cross-reaction with creatine kinase brain subtype (CKB), present in parietal cells, using antibody competition experiments and western blot analysis of stomach proteins. Viral protein+ and dsRNA+ biopsies were infectious in SCID mice. More research is needed to elucidate the mechanism of enterovirus infection of the stomach associated with FD and chronic gastritis.
基金Supported by the Ratchadapisek Sompotch Fund, Faculty of Medicine, Chulalongkom University, Thailand
文摘AIM: The role of Helicobacter pylori (H pylori) infection in gastric acid secretion of patients with chronic gastritisremains controversial. This study was designed to elucidate the effect of H pylori on H+/K+-ATPase activities in gastric biopsy specimens.METHODS: Eighty-two patients with chronic gastritis who had undergone upper endoscopy were included in this study. H pylori infection was confirmed by rapid urease test and histology. Gastric H+/K+-ATPase activities and serum gastrin concentrations were measured by an enzymatic method and radioimmunoassay, respectively. For those patients who received triple therapy for eradicating H pylori, changes in the activity of gastric H+/K+-ATPase and serum gastrin levels were also measured. RESULTS: The mean gastric H+/K+-ATPase activity in H pyloripositive group (42 patients) was slightly higher than thatin H pylori-negative group (29 patients) (169.65±52.9 and eradication of H pylori, the gastric H+/K+-ATPase activities slightly decreased compared to prior therapy (165.03±59.50 The mean basal gastrin concentration was slightly higher in H pylori-positive patients than in H pylori-negative patients (87.92±39.65 pg/mL vs75.04± 42.57 pg/mL, P= 0.228). The gastrin levels fell significantly after the eradication of Hpylori. (Before treatment 87.00±30.78 pg/mL, aftertreatment 64.73±18.96 pg/mL, P = 0.015).CONCLUSION: Gastric H+/K+-ATPase activities are not associated with H pylori status in patients with chronicgastritis.
基金Supported in part by Consejo Nacional de Ciencia y Tecnologiagrant, Mexico, No. 153237
文摘AIM: To determine the HLA-DQ locus in Mexican patients with Chronic gastritis and gastric adenocarcinoma. METHODS: Oligotyping for HLA-DQ locus was performed in 45 Mexican patients with chronic gastritis and 13 Mexican patients with diffuse-type gastric adenocarcinoma, and was then compared with 99 clinically healthy unrelated individuals. H pylori infection and CagA status were assessed in patients by enzyme-linked immunosor-bent assay (ELISA) method. RESULTS: We found a significant increased frequency of HLA-DQB1*0401 allele in H pylori-positive patients with chronic gastritis when compared with healthy subjects [19 vs 0%, P= 1 × 10-7, odds ratio (OR) = 4.96; 95% confidence interval (95% CI), 3.87-6.35]. We also found a significant increased frequency of HLA-DQB1*0501 in patients with diffuse-type gastric carcinoma in comparison with healthy individuals (P = 1 × 10-6, OR = 13.07; 95% CI, 2.82-85.14). CONCLUSION: HLA-DQ locus may play a different role in the development of H pylori-related chronic gastritis and diffuse-type gastric adenocarcinoma in the Mexican Mestizo population.
基金supported by the National Natural Science Foundation of China(Grant No.81302160 and 81272447)Beijing Natural Science Foundation ProgramScientific Research Key Program of Beijing Municipal Commission of Education(Grant No.KZ201410025024)
文摘Objective: Gastric cancer(GC) is one of the leading causes of death in China and other Asian countries.Recently, gastric endoscopy has become the main approach for GC screening, but the identification of high-risk individuals remains a challenge in GC screening programs.Methods: There were 7,302 patients with chronic gastritis involved in this study. Endoscopic examinations were performed, and their demographic characteristics and lifestyle data were collected. Each possible associated factor of GC/premalignant and precursor lesions was evaluated by univariate and multivariate logistic regressions.Nomograms were used for visualization of those models, and receiver operating characteristic(ROC) curve analysis was used to present the predictive accuracy.Results: We detected 8(0.11%) gastric adenocarcinomas, 17(0.23%) dysplasia cases, 14(0.19%) hyperplasia cases, 52(0.71%) intestinal metaplasia cases, 217(2.97%) inflammatory lesions, 141(1.93%) gastric ulcers, 10(0.14%) atrophic gastritis cases, 1,365(18.69%) erosive gastritis cases, and 5,957(81.58%) superficial gastritis cases in 7,302 patients. The age(P<0.001), gender(P=0.086), labor intensity(P=0.018) and leek food intake(P=0.143)were identified as independent predictive factors of GC/premalignant lesions possibility. The corresponding nomogram exhibited an area under the curve(AUC) [95% confidence interval(95% CI)] of 0.82(0.74–0.89) for the modeling group and 0.80(0.75–0.85) for the validation group. The age(P=0.002), gender(P=0.024), smoking(P=0.002) and leek food intake(P=0.039) were independent predictive factors of precursor lesions possibility. The corresponding nomogram exhibited an AUC(95% CI) of 0.62(0.60–0.65) for the modeling group and 0.61(0.59–0.63) for the validation group.Conclusions: We identified several potential associated factors and provided a preclinical nomogram with the potential to predict the possibility of GC/premalignant and precursor lesions.
文摘AIM: To evaluate the association between polymorphisms XRCC1 Arg194Trp and Arg399Gln and XRCC3Thr241Met and the risk for chronic gastritis and gastric cancer, in a Southeastern Brazilian population.METHODS: Genotyping by PCR-RFLP was carried out on 202 patients with chronic gastritis (CG) and 160 patients with gastric cancer (GC), matched to 202 (C1) and 150(C2) controls, respectively.RESULTS: No differences were observed among the studied grou ps with regard to the genotype distribution of XRCC1 codons 194 and 399 and of XRCC3 codon 241. However, the combined analyses of the three variant alleles (194Trp, 399Gln and 241Met) showed an increased risk for chronic gastritis when compared to the GC group. Moreover, an interaction between the polymorphic alleles and demographic and environmental factors was observed in the CG and GC groups. XRCC1 194Trp was associated with smoking in the CG group,while the variant alleles XRCC1 399Gln and XRCC3241Met were related with gender, smoking, drinking and H pylori infection in the CG and GC groups.CONCLUSION: Our results showed no evidence of a rela-tionship between the polymorphisms XRCC1Arg194Trp and Arg399Gln and XRCC3 Thr241Met and the risk of chronic gastritis and gastric cancer in the Brazilian population, but the combined effect of these variants may interact to increase the risk for chronic gastritis,considered a premalignant lesion. Our data also indicate a gene-environment interaction in the susceptibility to chronic gastritis and gastric cancer.
文摘To summarize the current views and insights on associations between Helicobacter pylori(H. pylori)-related chronic gastritis and colorectal neoplasm, we reviewed recent studies to clarify whether H. pylori infection/H. pylori-related chronic gastritis is associated with an elevated risk of colorectal neoplasm. Recent studies based on large databases with careful control for confounding variables have clearly demonstrated an increased risk of colorectal neoplasm associated with H. pylori infection. The correlation between H. pylori-related chronic atrophic gastritis(CAG) and colorectal neoplasm has only been examined in a limited number of studies. A recent large study using a national histopathological database, and our study based on the stage of H. pylori-related chronic gastritis as determined by serum levels of H. pylori antibody titer and pepsinogen, indicatedthat H. pylori-related CAG confers an increased risk of colorectal neoplasm, and more extensive atrophic gastritis will probably be associated with even higher risk of neoplasm. In addition, our study suggested that the activity of H. pylori-related chronic gastritis is correlated with colorectal neoplasm risk. H. pylori-related chronic gastritis could be involved in an increased risk of colorectal neoplasm that appears to be enhanced by the progression of gastric atrophy and the presence of active inflammation.
文摘Ninety-two asymptomafic subjects were investigated to determine whether they were in-fected with Helicobacter pylori(HP)by means of fiber gastroscopy, urease test andWarthin-Starry silver stain.As a result of this work,49 subjects with HP infection were found.Under gastroscope,24 of 92 subjects had normal gastric mucosa 45 suffered frompiebaldism-like congestion of the gastric mucosa and 23 mucosal erosion,but the differencesamong the detectable rotes of them had no statistical significance(P】0.05).Forty-six of the subjects with HP infection were seen in the 67 patients with gastritis and only 3 in the subjectswith normal mucosa.The positive rates of HP infection in the patients with moderate and serfous gastritis were significant highly(P【0.01),as compared with that in mild gastritis.It could besuggested that HP infection and the gastritis associated with it may universally exist in“healthy persons”without symptom.
文摘We had treated 102 cases of obstinate peptic ulcer and chronic gastritis with ametal ring embedded in Zusanli acupoint since October 1989 to October 1992,and got satisfactorytherapeutic effects.The total effective rate is 96.08%,the cure rate of peptic ulcer is 87.32%,therecurrence rate is significantly lower than that of control group(P【0.001),and it has no side-effect.
