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Technology in Cancer Research &... 2023Gastric cancer is the fourth deadliest cancer worldwide. Due to the lack of specific early symptoms and noninvasive methods for early detection, the prognosis of... (Review)
Review
Gastric cancer is the fourth deadliest cancer worldwide. Due to the lack of specific early symptoms and noninvasive methods for early detection, the prognosis of gastric cancer patients is poor. Gastric cancer has a well-recognized infectious etiology, with and Epstein-Barr Virus being the main associated infectious agents. Although other Epstein-Barr Virus-associated malignancies often manifest with abnormal levels of anti-Epstein-Barr Virus antibodies, it is not clear whether this is also true for gastric cancer. Potentially, these antibodies could serve as a noninvasive tool for gastric cancer screening or as markers for gastric cancer risk and provide a better understanding of the participation of Epstein-Barr Virus in the development of this neoplasm. We conducted a systematic review of articles analyzing anti-Epstein-Barr Virus serology in gastric cancer and precursor lesions following PRISMA guidelines. Patients were classified according to the Correa cascade of gastric lesions and whether they were positive or negative by EBER- hybridization (Epstein-Barr Virus-associated gastric cancer and Epstein-Barr Virus-nonassociated gastric cancer, respectively). We retrieved 16 articles involving 9735 subjects from 12 different countries and 4 databases, PubMed, SciELO, Scopus, and Google Scholar. Higher antibody titers were observed not only in Epstein-Barr Virus-associated gastric cancer than in Epstein-Barr Virus-nonassociated gastric cancer but also in Epstein-Barr Virus-nonassociated gastric cancer and gastric cancer-precursor lesions when compared with patients with mild dyspepsia or healthy controls. In all cases, the associations were predominantly with antibodies directed against lytic cycle antigens. Data support the role of Epstein-Barr Virus lytic reactivation in the development of advanced gastric lesions. However, more studies are needed to confirm these associations, particularly the association with lesions considered negative by EBER- hybridization, and to establish a set of antibodies and thresholds indicative of enhanced risk to develop these lesions.
Topics: Humans; Herpesvirus 4, Human; Stomach Neoplasms; Risk
PubMed: 37078150
DOI: 10.1177/15330338231169875 -
European Journal of Nutrition Sep 2021Taste receptors are expressed throughout the gastrointestinal tract. The activation of post-oral taste receptors using tastants could provide a non-invasive treatment... (Meta-Analysis)
Meta-Analysis Review
PURPOSE
Taste receptors are expressed throughout the gastrointestinal tract. The activation of post-oral taste receptors using tastants could provide a non-invasive treatment option in combating the obesity epidemic. The aim of this review was to examine the effect of post-oral delivery of non-caloric tastants on eating behavior reflected by primary outcome energy intake and secondary outcomes GI symptoms and perceptions and potential underlying mechanisms. This review was conducted according to the PRISMA guidelines for systematic reviews.
METHODS
A systematic literature search of the Cochrane, PubMed, Embase, and Medline databases was performed. This systematic review and meta-analysis was registered in the PROSPERO database on 26 February 2020 (ID: CRD42020171182). Two researchers independently screened 11,912 articles and extracted information from 19 articles. If at least two studies investigated the effect of the same taste compound on primary outcome energy intake, a meta-analysis was performed to determine pooled effect sizes.
RESULTS
Nineteen papers including healthy volunteers were included. In the 19 papers analyzed, effects of various tastants were investigated in healthy volunteers. Most extensively investigated were bitter tastants. The meta-analysis of effects of bitter tastants showed a significant reduction in energy intake of 54.62 kcal (95% CI - 78.54 to - 30.69, p = 0.0014).
CONCLUSIONS
Bitter stimuli are most potent to influence eating behavior. Energy intake decreased after post-oral delivery of bitter tastants. This highlights the potential of a preventive role of bitter tastants in battling the obesity epidemic.
Topics: Energy Intake; Feeding Behavior; Gastrointestinal Tract; Humans; Obesity; Taste
PubMed: 33559026
DOI: 10.1007/s00394-021-02485-4 -
Journal of Immunology Research 2022This systematic review and meta-analysis was conducted to assess the efficacy of acupuncture treatment for postprandial distress syndrome (PDS). (Meta-Analysis)
Meta-Analysis
OBJECTIVE
This systematic review and meta-analysis was conducted to assess the efficacy of acupuncture treatment for postprandial distress syndrome (PDS).
METHODS
Search the Web of Science, the Cochrane Library, PubMed, and Embase databases with acupuncture randomized controlled trials for the treatment of patients with PDS. Strictly according to inclusion and exclusion quality assessment standards, the qualified ones are used to study the optimum extraction and data by two independent reviewers. Stata 15.0 software was used for meta-analysis.
RESULT
We initially identified 63 studies, of which five (1253 participants) were eventually included in our analysis. There were 643 cases in the experimental group and 610 cases in the control group. Acupuncture had a significant effect on the total therapeutic effect (OTE) at week 4 (OR 4.74, 95% CI 02.88-7.83, = 6.10, = 0 < 0.05). Significantly improved NDI (Nepean dyspepsia index) scores of PDS patients at week 4 (SMD 0.61, 95% CI 0.48 to 0.74). Significantly improved NDI scores in PDS patients at week 16 (SMD 0.49, 95% CI 0.27 to 0.71). After acupuncture treatment, the SID (dyspepsia symptom index) score of PDS patients decreased significantly at week 4 (SMD-0.52, 95% CI -0.73 to -0.32) and week 16 (SMD-0.59, 95% CI -0.81 to -0.36). Postprandial satiety scores (SMD-0.63, 95% CI -0.76 to -0.50) and early satiety scores (SMD-0.51, 95% CI -0.64 to -0.37) were also significantly lower at week 4 after acupuncture.
CONCLUSION
This study highlighted that the acupuncture could significantly improve the overall therapeutic effect of PDS patients, alleviate the symptoms of postprandial fullness and early satiety, and improve the quality of life of patients. Our results supported that acupuncture was an effective therapeutic strategy for postprandial distress syndrome.
Topics: Acupuncture Therapy; Dyspepsia; Humans; Postprandial Period; Quality of Life; Stomach Diseases
PubMed: 35692506
DOI: 10.1155/2022/6969960 -
Scientific Reports Feb 2024Although functional dyspepsia (FD) is a common functional gastroduodenal disorder with a high socioeconomic burden, little is known about its global prevalence. Thus, we... (Meta-Analysis)
Meta-Analysis
Although functional dyspepsia (FD) is a common functional gastroduodenal disorder with a high socioeconomic burden, little is known about its global prevalence. Thus, we performed a comprehensive study to estimate long-term trends in the prevalence of FD. We searched PubMed/MEDLINE, Embase, and Google Scholar from 1990 to 2022 for population-based studies that reported the prevalence of FD in adults (≥ 18 years old) according to Rome I, II, III, or IV criteria. The prevalence of FD was extracted from included studies to obtain pooled prevalence with 95% confidence intervals (CI) and 95% prediction intervals. Subgroup analysis was performed according to certain characteristics, including geographic region. A total of 44 studies met the eligibility criteria, including 256,915 participants from 40 countries across six continents. The overall global pooled prevalence of FD was 8.4% (95% CI 7.4-.9.5). The prevalence was the highest in Rome I (11.9%; 95% CI 5.1-25.4) and lowest in Rome IV (6.8%; 95% CI 5.8-7.9). Developing countries showed a higher prevalence than developed countries (9.1% versus 8.0%), and prevalence was higher in women, irrespective of the definition used (9.0% versus 7.0%). The pooled prevalence gradually decreased from 1990 to 2020 (12.4% [8.2-18.3] in 1990-2002 versus 7.3% [6.1-8.7] in 2013-2020). The prevalence of FD differs by country, economic status, geographical region, and sex, and the global prevalence has been gradually declining. Despite the heterogeneity of sample population, our study estimates the current global burden of FD and provides information to heath care policy decisions.
Topics: Adult; Humans; Female; Adolescent; Dyspepsia; Prevalence; Rome; Socioeconomic Factors
PubMed: 38378941
DOI: 10.1038/s41598-024-54716-3 -
Journal of Clinical Gastroenterology Apr 2022Functional dyspepsia (FD) is a functional digestive disease with limited management selection. Previous studies revealed that acupuncture therapy is effective for FD.... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Functional dyspepsia (FD) is a functional digestive disease with limited management selection. Previous studies revealed that acupuncture therapy is effective for FD. However, because sham controls were not implemented in most clinical trials following acupuncture therapy, it is difficult to differentiate overall treatment responses from placebo. This study aims to quantify placebo responses in clinical trials in which FD patients received sham manual acupuncture (MA) and sham electroacupuncture (EA).
MATERIALS AND METHODS
Randomized controlled trials of MA and EA for FD patients were searched in PubMed, Web of Science, Cochrane Library, and Embase databases, as well as 4 Chinese language databases from inception to January 2021. RevMan 5.20 software was used for pooled analysis of symptom scores and quality of life. The symptom scores were combined using standard mean difference (SMD) or weighted mean difference (WMD) with a 95% confidence interval (CI). The quality of included studies was tested using modified Jadad scale and Standards for Reporting Interventions in Controlled Trials of Acupuncture (STRICTA) checklist. Egger's test, Begg's test, and sensitivity analyses were conducted using Stata 11.0 statistical software. The protocol of this study is registered in PROSPERO as CRD42021233858.
RESULTS
After screening, the current systematic review included 13 randomized controlled trials, of which 8 studies were used in the meta-analysis. Regarding subjective outcomes, the combined effect of sham MA on FD symptoms was [SMD=-0.42, 95% CI (-0.72, -0.12); P=0.005], whereas sham EA treatment was [SMD=-0.54, 95% CI (-0.81, -0.27); P<0.001]. The combined effect on FD quality of life of post-sham MA group was [SMD=-0.32, 95% CI (-0.52, -0.12); P=0.002]. With regard to objective outcomes, the combined effect of sham EA on dominant frequency was [WMD=-0.11, 95% CI (-0.30, -0.08); P=0.24], while the combined effect of sham EA on dominant power was [WMD=-3.35, 95% CI (-8.04, 1.35); P=0.16].
CONCLUSIONS
Sham MA and sham EA remarkably improve symptoms and quality of life scores of FD without influencing objective outcomes, highlighting the significance of sham controls in acupuncture therapy clinical trials.
Topics: Acupuncture Therapy; Dyspepsia; Electroacupuncture; Humans; Placebo Effect; Quality of Life; Randomized Controlled Trials as Topic
PubMed: 35180148
DOI: 10.1097/MCG.0000000000001679 -
Frontiers in Psychology 2022The effects of psychological interventions on symptoms and psychology of functional dyspepsia (FD) remain unclear. We aimed to comprehensively evaluate the effects of...
BACKGROUND
The effects of psychological interventions on symptoms and psychology of functional dyspepsia (FD) remain unclear. We aimed to comprehensively evaluate the effects of psychological interventions on symptoms and psychology of FD.
METHODS
We searched the PubMed, Cochrane Library, and Embase electronic databases for randomized controlled trials (RCTs) evaluating the role of psychological interventions in FD patients published before July 2021. Standardized mean differences (SMDs), risk ratios (RRs) and 95% confidence intervals (CIs) were calculated by a random effects model. Subgroup analyses and sensitivity analyses were also performed.
RESULTS
Fourteen RCTs with a total of 1,434 FD patients were included. Compared with the control group, psychological interventions were significantly more likely to symptom improvement [RR = 1.74, 95% CI (1.12, 2.72), = 0.01], relieve gastrointestinal symptoms scores at follow up [SMD = -1.06, 95% CI (-1.55, -0.57), < 0.0001], relieve gastrointestinal symptoms scores at end of treatment [SMD = -0.98, 95% CI (-1.29, -0.67), < 0.001], decrease anxiety [SMD = -0.8, 95% CI (-1.38, -0.22), = 0.006] and depression levels [SMD = -1.11, 95% CI (-1.62, -0.61), < 0.001]. The results of the subgroup analysis showed that psychotherapy was more likely to symptom improvement, relieve gastrointestinal symptoms scores and decreased depression levels compared to the control.
CONCLUSIONS
Psychological interventions may be effective in alleviating the symptoms and psychology of FD, but the effect appears to be limited to psychotherapy with fewer trials for other psychological interventions. More data from high-quality RCTs are needed to confirm their use in the treatment of FD.
PubMed: 35465581
DOI: 10.3389/fpsyg.2022.827220 -
EClinicalMedicine May 2024Gastro-oesophageal reflux disease (GORD) mechanisms are well described, but the aetiology is uncertain. Coeliac disease (CD), a gluten enteropathy with increased...
BACKGROUND
Gastro-oesophageal reflux disease (GORD) mechanisms are well described, but the aetiology is uncertain. Coeliac disease (CD), a gluten enteropathy with increased duodenal eosinophils overlaps with GORD. Functional dyspepsia is a condition where duodenal eosinophilia is featured, and a 6-fold increased risk of incident GORD has been observed. Perturbations of the duodenum can alter proximal gastric and oesophageal motor function. We performed a systematic review and meta-analysis assessing the association between CD and GORD.
METHODS
A systematic search of studies reporting the association of GORD and CD was conducted. CD was defined by combined serological and histological parameters. GORD was defined based on classical symptoms, oesophagitis (endoscopic or histologic) or abnormal 24-h pH monitoring; studies reporting oesophageal motility abnormalities linked with GORD were also included. Pooled odds ratios (OR) and 95% confidence intervals (CI) were calculated using a random-effects model.
FINDINGS
31 papers were included. Individuals with CD on a gluten containing diet were 3 times more likely to have GORD than controls (OR: 3.37, 95% CI: 2.09-5.44), and over 10 times more likely when compared to those on a gluten free diet (GFD) (OR: 10.20, 95% CI: 6.49-16.04). Endoscopic oesophagitis was significantly associated with CD (OR: 4.96; 95% CI: 2.22-11.06). One year of a GFD in CD and GORD was more efficacious in preventing GORD symptom relapse than treatment with 8 weeks of PPI in non-CD GORD patients (OR: 0.18, 95% CI: 0.08-0.36). Paediatric CD patients were more likely to develop GORD (OR: 3.29, 95% CI: 1.46-7.43), compared to adult CD patients (OR: 2.55, 95% CI: 1.65-3.93).
INTERPRETATION
CD is strongly associated with GORD but there was high heterogeneity. More convincingly, a GFD substantially improves GORD symptoms, suggesting a role for duodenal inflammation and dietary antigens in the aetiology of a subset with GORD. Ruling out CD in patients with GORD may be beneficial.
FUNDING
The study was supported by an Investigator Grant from the NHMRC to Dr. Talley.
PubMed: 38659976
DOI: 10.1016/j.eclinm.2024.102577 -
European Review For Medical and... Nov 2020Alginate formulations are increasingly being used for treating gastroesophageal reflux disease (GERD). However, the benefits of alginate versus control or proton pump... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Alginate formulations are increasingly being used for treating gastroesophageal reflux disease (GERD). However, the benefits of alginate versus control or proton pump inhibitors (PPIs) are somewhat unclear. We performed a systematic review and meta-analysis to summarize data from recent randomized controlled trials (RCTs) comparing the efficacy and safety of alginate-based formulation with PPIs or control for the treatment of GERD.
MATERIALS AND METHODS
PubMed, Embase, Scopus, BioMed Central, CENTRAL, and Google scholar databases were searched from 1st January 2000 to 15th June 2020. Primary outcome was a reduction of symptoms while secondary outcomes were adverse events and treatment withdrawals. Ten articles with 11 RCTs were included.
RESULTS
Qualitative analysis of four trials indicated better outcomes with alginates vs. placebo/antacids. Our pooled analysis, however, indicated no statistically significant difference between alginates and placebo/antacids for relief of heartburn, regurgitation, or dyspepsia. Similarly, no difference was seen between a combination of alginate and PPI vs. PPI alone for reduction of heartburn, regurgitation, or dyspepsia symptoms. The risk of adverse events and treatment withdrawal did not differ between the two groups in either comparison. Descriptive analysis of studies comparing alginate vs. PPI indicated no difference between the two drugs.
CONCLUSIONS
Our study indicates that alginates may have greater efficacy than placebo/antacids in improving outcomes of GERD. However, current evidence on the efficacy of alginate-based formulations vs. PPI or the role of added alginates with PPI is questionable, and suggests no difference between the two drugs. The risk of adverse events with alginates is no greater than that of placebo or PPIs.
Topics: Alginates; Drug Compounding; Gastroesophageal Reflux; Humans; Proton Pump Inhibitors; Randomized Controlled Trials as Topic
PubMed: 33275256
DOI: 10.26355/eurrev_202011_23841 -
World Journal of Gastroenterology Oct 2019Irritable bowel syndrome (IBS) is a prevalent and debilitating gastrointestinal condition. Research has reported persistent, low-grade mucosal inflammation and... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Irritable bowel syndrome (IBS) is a prevalent and debilitating gastrointestinal condition. Research has reported persistent, low-grade mucosal inflammation and significant overlaps between patients with IBS and those with dyspepsia, suggesting a possible pathogenic role of () in IBS. This study therefore aimed to provide the first systematic review and meta-analysis on the association between infection and IBS.
AIM
To investigate the association between infection and IBS.
METHODS
Using the keywords " OR Helicobacter OR Helicobacter pylori OR infection" AND "irritable bowel syndrome OR IBS", a preliminary search of PubMed, Medline, Embase, Cochrane Database of Systematic Reviews, Web of Science, Google Scholar and WanFang databases yielded 2924 papers published in English between 1 January 1960 and 1 June 2018. Attempts were also made to search grey literature.
RESULTS
A total of 13 clinical studies were systematically reviewed and nine studies were included in the final meta-analysis. Random-effects meta-analysis found a slight increased likelihood of infection in patients with IBS, albeit this was not statistically significant (pooled odds ratio 1.47, 95% confidence interval: 0.90-2.40, = 0.123). It must also be acknowledged that all of the available studies reported only crude odd ratios. eradication therapy also does not appear to improve IBS symptoms. Although publication bias was not observed in the funnel plot, there was a high degree of heterogeneity amongst the studies included in the meta-analysis ( = 87.38%).
CONCLUSION
Overall, current evidence does not support an association between IBS and infection. Further rigorous and detailed studies with larger sample sizes and after eradication therapy are warranted.
Topics: Anti-Bacterial Agents; Helicobacter Infections; Helicobacter pylori; Humans; Irritable Bowel Syndrome; Prevalence; Treatment Outcome
PubMed: 31602169
DOI: 10.3748/wjg.v25.i37.5702 -
Diagnostics (Basel, Switzerland) Jan 2023Functional gastrointestinal disorders (FGID) and gastroesophageal reflux (GERD) disease affect a large global population and incur substantial health care costs.... (Review)
Review
Functional gastrointestinal disorders (FGID) and gastroesophageal reflux (GERD) disease affect a large global population and incur substantial health care costs. Impairment in gut-brain communication is one of the main causes of these disorders. The central nervous system (CNS) provides its inputs to the enteric nervous system (ENS) by modulating the autonomic nervous system (ANS) to control the gastrointestinal functions. Therefore, GERD and FGID's might be associated with autonomic dysfunction, which can be identified via heart rate variability (HRV). FGIDs may be treated by restoring the autonomic dysfunction via neuromodulation. This article reviews the roles of HRV in the assessment of autonomic function and dysfunction in (i) gastroesophageal reflux (GERD), and the following FGIDs: (ii) functional dyspepsia (FD) and gastroparesis, (iii) irritable bowel syndrome (IBS) and (iv) constipation. The roles of HRV in the assessment of autonomic responses to various interventions were also reviewed. We used PUBMED, Web of Science, Elsevier/Science direct and Scopus to search the eligible studies for each disorder, which also included the keyword 'heart rate variability'. The retrieved studies were screened and filtered to identify the most suitable studies using HRV parameters to associate the autonomic function with any of the above disorders. Studies involving both human and animal models were included. Based on analyses of HRV, GERD as well as the FGIDs were found to be associated with decreased parasympathetic activity and increased sympathetic nervous system activity with the autonomic balance shifted towards the sympathetic nervous system. In addition, the HRV methods were also reported to be able to assess the autonomic responses to various interventions (mostly neuromodulation), typically the enhancement of parasympathetic activity. In summary, GERD and FGIDs are associated with impaired autonomic dysfunction, mainly due to suppressed vagal and overactive sympathetic tone, which can be assessed noninvasively using HRV.
PubMed: 36673103
DOI: 10.3390/diagnostics13020293