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Neurogastroenterology and Motility Feb 2023Placebo responses to an apparently inactive intervention are of interest from a scientific perspective as they suggest possible mechanism(s) at work beyond the... (Review)
Review
Placebo responses to an apparently inactive intervention are of interest from a scientific perspective as they suggest possible mechanism(s) at work beyond the intervention itself. They are also of interest from a clinical trials perspective since high rates of placebo response limit the potential to demonstrate worthwhile efficacy of a new intervention. This mini-review was motivated by the work of Bosman and colleagues(Neurogastroenterol Motil, 2022, and e14474) that is published in this issue of the journal in which they report on a systematic review and meta-analysis of placebo response in functional dyspepsia clinical trials. The review sets the scene for their work by putting it in the context of other disorders of brain-gut interaction and extra-gastrointestinal disorders. The review canvasses potential mechanisms of placebo response.
Topics: Humans; Dyspepsia; Gastrointestinal Diseases; Placebo Effect
PubMed: 36592054
DOI: 10.1111/nmo.14527 -
Frontiers in Pharmacology 2021Prokinetics is one of the therapeutic agents for functional and motility disorders of the stomach. However, its efficacy is limited. Kampo medicine is a unique medical... (Review)
Review
Prokinetics is one of the therapeutic agents for functional and motility disorders of the stomach. However, its efficacy is limited. Kampo medicine is a unique medical system that was developed in Japan. In Kampo medicine, herbal medicine is prescribed based on the patient's condition. Therefore, even for functional and motility disorders of the stomach, some herbal medicines are considered as a therapeutic option. Recently, there has been an increase in evidence for the efficacy or the mechanism of herbal medicine for functional and motility disorders of the stomach. Among these, rikkunshito is a well-studied herbal medicine that could be used as an alternative to prokinetics. In this review, we discuss the possibilities of rikkunshito for functional dyspepsia with its prokinetic and non-prokinetic effects and provide an overview of their current use with a focus on their therapeutic mechanism.
PubMed: 34168558
DOI: 10.3389/fphar.2021.640576 -
Nutrients Mar 2023Functional dyspepsia is a gastrointestinal disorder characterized by postprandial fullness, early satiation, epigastric pain, and epigastric burning. The pathophysiology... (Review)
Review
Functional dyspepsia is a gastrointestinal disorder characterized by postprandial fullness, early satiation, epigastric pain, and epigastric burning. The pathophysiology of the disease is not fully elucidated and there is no permanent cure, although some therapies (drugs or herbal remedies) try to reduce the symptoms. Diet plays a critical role in either the reduction or the exacerbation of functional dyspepsia symptoms; therefore dietary management is considered to be of high importance. Several foods have been suggested to be associated with worsening functional dyspepsia, such as fatty and spicy foods, soft drinks, and others, and other foods are thought to alleviate symptoms, such as apples, rice, bread, olive oil, yogurt, and others. Although an association between functional dyspepsia and irregular eating habits (abnormal meal frequency, skipping meals, late-night snacking, dining out, etc.) has been established, not many dietary patterns have been reported as potential factors that influence the severity of functional dyspepsia. A higher adherence to Western diets and a lower adherence to FODMAPs diets and healthy patterns, such as the Mediterranean diet, can contribute to the worsening of symptoms. More research is needed on the role of specific foods, dietary patterns, or specific eating habits in the management of functional dyspepsia.
Topics: Humans; Dyspepsia; Abdominal Pain; Diet; Feeding Behavior; Gastrointestinal Diseases; Postprandial Period
PubMed: 36986274
DOI: 10.3390/nu15061544 -
Heliyon Dec 2022() infection and chronic dyspepsia represent significant medical burdens in the developing world. An accurate assessment of the prevalence of chronic dyspepsia, as well...
BACKGROUND
() infection and chronic dyspepsia represent significant medical burdens in the developing world. An accurate assessment of the prevalence of chronic dyspepsia, as well as of the effectiveness of population-based screening and eradication of are warranted.
OBJECTIVES
We determined the prevalence of and chronic dyspepsia within the general adult population in a region of eastern Uganda. Independent predictors of infection were assessed. Finally, we evaluated the efficacy of standard triple therapy on eradication.
METHODS
Of 400 randomly selected adult residents in eastern Uganda, 376 were administered a validated, chronic dyspepsia questionnaire and provided a stool sample for testing. -positive participants were given standard triple therapy and monitored for medication adherence. The efficacy of triple therapy on eradication was determined by fecal antigen testing after treatment. Log-linear and logistic regression analyses identified predictors of positivity and eradication failure.
RESULTS
prevalence within the study population was 48%. The prevalence of chronic dyspepsia was 87%. The presence or severity of dyspepsia did not predict infection. However, a higher level of education was an independent predictor of infection. Standard triple therapy resulted in ∼90% eradication. Missing at least four doses of any of the triple therapy medications over the 14-day course predicted eradication failure.
CONCLUSIONS
In our study population, chronic dyspepsia did not predict infection, though clinical suspicion for this prevalent pathogen should nonetheless remain high. Population-based screening and adherence to triple therapy are effective at eradicating within this region.
PubMed: 36593846
DOI: 10.1016/j.heliyon.2022.e12612 -
Archives of Iranian Medicine Jul 2021Dyspepsia is a highly prevalent gastrointestinal problem. The present study was carried out to assess the prevalence of dyspepsia in Iran. (Meta-Analysis)
Meta-Analysis
BACKGROUND
Dyspepsia is a highly prevalent gastrointestinal problem. The present study was carried out to assess the prevalence of dyspepsia in Iran.
METHODS
The present study was registered at PROSPERO with the code CRD42019148610. It was carried out based on MOOSE and reporting was performed according to the PRISMA protocol. Systematic search of the literature was performed in July 2019 on international databases of PubMed/Medline, Web of Science (ISI), Cochrane Library, EBSCO, CINAHL, EMBASE, Scopus, Science Direct, and local databases as well as the Google Scholar search engine. Heterogeneity was evaluated using I2 and Chi-square tests. All analyses were done using Comprehensive Meta-Analysis software.
RESULTS
Overall, 14 studies with a sample size of 54,118 subjects entered in this meta-analysis. The prevalence of dyspepsia in Iran was 14.6% (95% CI: 9.6-21.7). Large heterogeneity was detected among studies (I2=99.62%, <0.001). The prevalence of dysmotility-like, ulcer-like, and unspecified dyspepsia was estimated to be 9.7% (95% CI: 4.9-18.4), 12.1% (95% CI: 5.2-25.7) and 17.0% (95% CI: 7.8-33.4), respectively. The prevalence of dyspepsia in Iranian men and women was found at 11.1% (95% CI: 6.3-18.8) and 17.8% (95% CI: 10.0-29.7), respectively.
CONCLUSION
The prevalence of dyspepsia in Iran is relatively high. However, it is lower than global estimates.
Topics: Databases, Factual; Dyspepsia; Humans; Iran; Prevalence
PubMed: 34488322
DOI: 10.34172/aim.2021.80 -
Current Opinion in Pharmacology Aug 2022Frequently occurring diseases of disordered gut-brain interactions are the irritable bowel syndrome and functional dyspepsia. Breath tests are noninvasive and are used... (Review)
Review
Frequently occurring diseases of disordered gut-brain interactions are the irritable bowel syndrome and functional dyspepsia. Breath tests are noninvasive and are used to monitor a variety of gastrointestinal functions or conditions. Their general principle is the oral application of a test substance, the metabolism of which results in a substrate that can be measured in expiratory air. Clinically used breath tests use carbohydrates or stable C-enriched substrates. This review will focus on two questions, which breath tests are relevant for initiating treatments and which breath tests are useful for assessing treatment response? Recently published guidelines have described breath tests in detail and the recommendations for their use will be based on recommendations of these guidelines.
Topics: Brain; Breath Tests; Dyspepsia; Humans; Irritable Bowel Syndrome
PubMed: 35636383
DOI: 10.1016/j.coph.2022.102244 -
Journal of Clinical Medicine Mar 2021Diabetes mellitus is a widespread disease, and represents an important public health burden worldwide. Together with cardiovascular, renal and neurological... (Review)
Review
Diabetes mellitus is a widespread disease, and represents an important public health burden worldwide. Together with cardiovascular, renal and neurological complications, many patients with diabetes present with gastrointestinal symptoms, which configure the so-called diabetic enteropathy. In this review, we will focus on upper gastrointestinal symptoms in patients with diabetes, with particular attention to dyspepsia and diabetic gastroparesis (DG). These two clinical entities share similar pathogenetic mechanisms, which include autonomic neuropathy, alterations in enteric nervous system and histological abnormalities, such as interstitial cells of Cajal depletion. Moreover, the differential diagnosis may be challenging because of overlapping clinical features. Delayed gastric emptying should be documented to differentiate between DG and dyspepsia and it can be assessed through radioactive or non-radioactive methods. The clinical management of dyspepsia includes a wide range of different approaches, above all test and treat. As regards DG treatment, a central role is played by dietary modification and glucose control and the first-line pharmacological therapy is represented by the use of prokinetics. A minority of patients with DG refractory to medical treatment may require more invasive therapeutic approaches, including supplemental nutrition, gastric electric stimulation, pyloromyotomy and gastrectomy.
PubMed: 33806716
DOI: 10.3390/jcm10061313 -
PloS One 2024To assess the effectiveness of acupuncture for treating depression and anxiety in patients diagnosed with functional dyspepsia (FD). (Meta-Analysis)
Meta-Analysis
OBJECTIVE
To assess the effectiveness of acupuncture for treating depression and anxiety in patients diagnosed with functional dyspepsia (FD).
METHODS
PubMed, Embase, Cochrane Library, Web of Science, CNKI, Wanfang Data, Sinomed, and VIP Database were searched until April 30, 2023 for Randomized Controlled Trials (RCTs) comparing acupuncture to placebo or drugs for symptom alleviation. Two independent reviewers conducted the study search, data extraction, and bias risk assessment using the Cochrane Risk of Bias tool. Mean difference (MD), risk ratio (RR), and corresponding 95% confidence intervals (CI) were computed. Subgroup and sensitivity analyses were also performed. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system was employed to evaluate the evidence level.
RESULTS
A total of 16 RCTs involving 1315 participants were included. Acupuncture demonstrated marked superiority over placebo (MD = -7.07, 95%CI: -11.03 to -3.10, very low quality evidence) in mitigating Self-Rating Anxiety Scale (SAS) scores and was found to be more effective in reducing Self-Rating Depression Scale (SDS) scores than either placebo (MD = -4.63, 95%CI: -6.28 to -2.98, low quality evidence) or first-line drugs (MD = -2.71, 95%CI: -5.19 to -0.23, very low quality evidence). In terms of attenuating Hamilton Anxiety Rating Scale (HAMA) and Hamilton Depression Rating Scale (HAMD) scores, acupuncture consistently outperformed both placebo (HAMA: MD = -2.58, 95%CI: -4.33 to -0.83, very low quality evidence; HAMD: MD = -1.89, 95%CI: -3.11 to -0.67, low quality evidence) and first-line drugs (HAMA: MD = -5.76, 95%CI: -10.18 to -1.35, very low quality evidence; HAMD: MD = -5.59, 95%CI: -7.59 to -3.59, very low quality evidence). However, no significant difference was observed between acupuncture and placebo in terms of improvement in Hospital Anxiety and Depression Scale (HADS) scores.
CONCLUSIONS
Based on current clinical evidence, acupuncture might have a positive effect on depression and anxiety in patients with FD. Further large-sample, multi-center, high-quality RCTs validation are required, as the conclusion is limited by the quantity and quality of the included studies.
Topics: Humans; Acupuncture Therapy; Anxiety; Depression; Dyspepsia
PubMed: 38452033
DOI: 10.1371/journal.pone.0298438 -
Digestive Diseases (Basel, Switzerland) 2022Dyspepsia is one of the most common complaints in gastroenterology. While its etiology is usually benign, rare cases of malignancy have to be identified. Individualized... (Review)
Review
BACKGROUND
Dyspepsia is one of the most common complaints in gastroenterology. While its etiology is usually benign, rare cases of malignancy have to be identified. Individualized risk stratification is essential for cost-effective management of dyspepsia. Here, we discuss the challenges of investigating dyspepsia at the specialist level and provide a framework for rational workup and surveillance strategies.
SUMMARY
Causes of dyspepsia can be functional or organic, including gastritis, peptic ulcers, or malignancy. H. pylori gastritis represents a specific entity of dyspepsia and increases the risk of gastric cancer. H. pylori eradication can improve symptoms in a subset of patients and reduce gastric cancer risk. In young patients without alarm features, malignancy is rare, and noninvasive testing for H. pylori is appropriate. In elder patients and those with alarm features, high-quality endoscopy is the method of choice to rule out malignancy. Advanced corpus-predominant atrophic gastritis with or without intestinal metaplasia represent precancerous lesions.
KEY MESSAGES
Symptom assessment requires to distinguish dyspepsia of functional or organic origin. Risk stratification in dyspeptic patients is based on age, alarm features, and H. pylori status. Noninvasive test-and-treat is recommended in patients with low gastric cancer risk, while endoscopy is recommended in individuals at increased risk. H. pylori infection should be eradicated in order to obtain a symptomatic benefit and reduce gastric cancer risk. Advanced preneoplastic lesions require endoscopic surveillance.
Topics: Aged; Dyspepsia; Fear; Gastritis; Gastroenterology; Helicobacter Infections; Helicobacter pylori; Humans; Stomach Neoplasms
PubMed: 34348279
DOI: 10.1159/000518394 -
Journal of Gastrointestinal and Liver... Dec 2023Functional dyspepsia (FD) is a common upper gastrointestinal disorder, characterized by bothersome epigastric pain or burning, fullness after meals or early satiety. The... (Review)
Review
Functional dyspepsia (FD) is a common upper gastrointestinal disorder, characterized by bothersome epigastric pain or burning, fullness after meals or early satiety. The precise pathophysiology remains incompletely understood but may include the role of disordered gut-brain communication leading to disturbances in gastro-duodenal physiological functioning. Even if there are several pharmacological treatment options, it is a chronic and relapsing disorder with persistent symptoms that makes its management difficult. Yoga is a fast-spreading complementary and alternative medicine (CAM) specialty, that has gained attention in the medical field for its ability to address the physical, emotional, mental and social aspects of health and disease. Various other CAM therapies are being used for FD with varying efficacy. However, apart from one research study that used yoga therapy on abdominal pain related functional gastrointestinal disorders in children which included a few FD cases as well (11.6%), no other study using yoga therapy has been done in FD as per our best knowledge. Therefore, in the present review, we have summarized the current scientific understanding of the probable effects of yoga on the pathophysiological mechanisms involved in FD (gastric motility, fundic accommodation, hypersensitivity, duodenal inflammation, psychological distress and gut-brain dysfunction). The literature suggests yoga can have a beneficial role in the management of FD. However, rigorous research and clinical trials are required to confirm the same.
Topics: Child; Humans; Dyspepsia; Yoga; Abdominal Pain; Gastrointestinal Diseases; Postprandial Period
PubMed: 38147600
DOI: 10.15403/jgld-4867