Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0013395 (dyspepsia)
4,879 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Non-ulcer dyspepsia is a common condition in primary care. The treatment of this condition is still controversial and no single therapy is uniformly effective. In this article we review currently available treatment trials for non-ulcer dyspepsia.
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PMID:Treatment options for functional dyspepsia. 1175 43

Functional gastrointestinal disorder (FGID) is common and may affect any part of the digestive tract from the esophagus to the rectum. Functional dyspepsia and the irritable bowel syndrome (IBS) are the most commonly recognized and until recently were considered distinct entities. In recent years, however, new observations and studies of the afferent nervous system have extended our concepts of both IBS and dyspepsia and suggest that these conditions may have common triggers and expression from similar pathophysiological processes.
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PMID:Evolving concepts in the pathophysiology of functional gastrointestinal disorder. 1218 34

Nonulcer dyspepsia is a common condition in clinical practice. It is a heterogeneous disorder, and no single therapeutic agent is effective in all patients. The treatment of nonulcer dyspepsia is still dissatisfactory. Eradication of Helicobacter pylori organisms has a limited role and little effect. Antisecretory therapy has a modest effect in alleviating symptoms. Prokinetic agents may be effective, but selection bias in the trials performed to date may exaggerate their benefit. Partial 5-HT(4) agonists stimulate gastric emptying and may also affect gastric accommodation. They are promising but need further study. Data are limited on 5-HT(3) antagonists and hypnotherapy. New treatment approaches are necessary for this common and often chronic condition.
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PMID:Nonulcer dyspepsia. 1244 Oct 34

Functional dyspepsia can be associated with impaired gastric relaxation in response to food intake and delayed gastric emptying. In this study, we investigated whether luminal hydrochloric acid (HCl) may reproduce these motor alterations in phenobarbital-anaesthetized rats via activation of extrinsic neural pathways. Intragastric pressure (IGP) changes induced by a 2-mL fluid bolus were recorded with an oesophageal catheter, and gastric emptying was determined via the fluid volume recovered from the stomach 30-min post-bolus. Experiments involving acute nerve transections or pharmacological blockade of nitric oxide synthesis revealed that the initial increase of IGP after a 0.35 mol L(-1) HCl bolus is dampened by duodenogastric and gastrogastric relaxation reflexes depending on vagal and splanchnic pathways as well as nitric oxide. Compared with saline, HCl (0.15-0.5 mol L(-1)) delayed the subsequent decrease (adaptation) of IGP, inhibited gastric emptying and stimulated gastric fluid secretion as seen in stomachs with ligated pylorus. The acid-evoked delay in IGP adaptation and inhibition of gastric emptying involved duodenogastric and duodenopyloric extrinsic nerve reflexes, whereas the gastric fluid secretion was independent of the extrinsic innervation. It is proposed that the gastropyloric motor changes induced by luminal acid challenge have a bearing on the motor disturbances underlying functional dyspepsia.
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PMID:Acid challenge delays gastric pressure adaptation, blocks gastric emptying and stimulates gastric fluid secretion in the rat. 1258 68

Functional dyspepsia is a clinical syndrome defined by chronic or recurrent pain or discomfort in the upper abdomen of unknown origin. Although generally accepted, investigators differently interpret this definition and clinical trials are often biased by inhomogeneous inclusion criteria. The poorly defined multifactorial pathogenesis of dyspeptic symptoms has hampered efforts to develop effective treatments. A general agreement exists on the irrelevant role played by Helicobacter pylori in the pathophysiology of functional dyspepsia. Gastric acid secretion is within normal limits in patients with functional dyspepsia but acid related symptoms may arise in a subgroup of them. Proton pump inhibitors appear to be effective in this subset of patients with dyspepsia. Non-painful dyspeptic symptoms are suggestive of underlying gastrointestinal motor disorders and such abnormalities can be demonstrated in a substantial proportion of patients. Postprandial fullness and vomiting have been associated with delayed gastric emptying of solids, and early satiety and weight loss to postcibal impaired accommodation of the gastric fundus. Prokinetics have been shown to exert beneficial effects, at least in some patients with dyspepsia. In contrast, drugs enhancing gastric fundus relaxation have been reported to improve symptoms, although conflicting results have also been published. An overdistended antrum may also generate symptoms, but its potential pathogenetic role and the effects of drugs on this abnormality have never been investigated formally. Visceral hypersensitivity plays a role in some dyspeptic patients and this abnormality is also a potential target for treatment. Both chemo- and mechanoreceptors can trigger hyperalgesic responses. Psychosocial abnormalities have been consistently found in functional digestive syndromes, including dyspepsia. Although useful in patients with irritable bowel syndromes (IBS), antidepressants have been only marginally explored in functional dyspepsia. Among the new potentially useful agents for the treatment of functional dyspepsia, serotonin 5-HT(4) receptor agonists have been shown to exert a prokinetic effect. Unlike motilides, 5-HT(4) receptor agonists do not appear to increase the gastric fundus tone and this may contribute to improve symptoms. 5-HT(3) receptor antagonists have been investigated mainly in the IBS and the few studies performed in functional dyspepsia have provided conflicting results. Also, kappa-opioid receptor agonists might be useful for functional digestive syndromes because of their antinociceptive effects, but available results in functional dyspepsia are scanty and inconclusive. Other receptors that represent potential clinical targets for antagonists include purinoceptors (i. e., P2X2/3 receptors), NMDA receptors (NR2B subtype), protease-activated receptor-2, the vanilloid receptor-1, tachykinin receptors (NK(1)/NK(2)) and cholecystokinin (CCK)(1) receptors.
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PMID:New developments in the treatment of functional dyspepsia. 1267 73

Non-ulcer dyspepsia is common and is often confused with other diagnoses. It remains a condition identified by exclusion, and continues to be a challenge to manage. Currently, only a limited number of pharmacological options are available. Antacids are no more effective than placebo in treating nonulcer dyspepsia. H2-receptor antagonists appear to be superior to placebo in efficacy, but many of the studies suggesting this finding have had a suboptimal study design. Proton pump inhibitors have been shown to be superior to placebo, although questions remain as to whether the only subgroup that responds is comprised of patients with unrecognized gastroesophageal reflux disease. Studies have found that prokinetic agents are superior to placebo, but currently only a very limited number of agents within this class can be prescribed in the United States. Sparse data support the role of metoclopramide and its side effects limit its use even further. The eradication of Helicobacter pylori has a small but positive therapeutic benefit in non-ulcer dyspepsia, and can be considered in those confirmed to be infected. Sucralfate is unlikely to be effective, and misoprostol is ineffective. Bismuth alone is probably not efficacious. Tricyclic antidepressants may have a therapeutic role, but this is not firmly established and this class of medication should be reserved for resistant cases. Emerging therapies include drugs that relax the gastric fundus, such as buspirone or sumatriptan, and the new prokinetic tegaserod. Psychological therapies may play a role but studies of these therapies are limited. Therapy for non-ulcer dyspepsia remains challenging and is usually empiric; it will remain so until the mechanisms that induce symptoms of dyspepsia are better understood.
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PMID:Update on the role of drug therapy in non-ulcer dyspepsia. 1268 90

Functional dyspepsia is one of the most common disorders seen in general practice and by gastroenterologists. New concepts regarding the pathophysiology and its role for the symptom pattern have emerged during the last few years. This is of importance for development of new treatment alternatives in the near future. At the moment, however, empirical treatment with acid-suppressive agents and prokinetics is the recommended therapeutic approach in the management of these patients, despite limited efficacy. Identification and treatment of H pylori infection has been recommended for uninvestigated dyspepsia, because it may cure underlying peptic ulcer disease, but is unlikely to provide symptomatic benefit to patients with functional dyspepsia. Refractory patients may respond to antidepressants or to psychologic treatments, but proof of efficacy is limited. New and more effective approaches are badly needed for functional dyspepsia.
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PMID:Functional dyspepsia: evaluation and treatment. 1285 7

Seven hundred and ninety patients had upper gastrointestinal endoscope in a fifteen-year review in the Ahmadu Bello University Hospital, Zaria. Dyspepsia was the commonest indication for the procedure. The male female ratio was 1.5:1 The mean age of the patients was 37.8 years and most patients presented in the 4th and 5th decade of life. Epigastric tenderness was the commonest physical finding and chronic liver disease was seen in only 4.3%. Gastritis and doudenitis were the commonest endoscopic findings. The duodenal and gastric ulcer ratio was 10:1. Gastric and oesophgeal malignancies were seen in the 6th and 7th decade of life. Non-ulcer dyspepsia was seen in 39% of the patients.
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PMID:Fifteen years of upper gastrointestinal endoscopy in Zaria (1978 - 1993). 1295 94

Functional dyspepsia is defined by the presence of pain/discomfort in the upper abdomen without evident of organic disease which explain it; it must not be relief by defecation and its onset must not be related to changes in freqfrecuentlyuency or consistency feces. Diagnosis also requires pain or discomfort to be present for 12 weeks, not necessarily consecutives, in the last year. It is classified in three subgroups: ulcer-like, dysmotility-like and unspecified). Functional dyspepsia represents not only a diagnostic challenge but also a therapeutic problem, since no specific drug is available. An appropriate management of functional dyspepsia should consider patient's personality, diagnostic work-up, therapeutic alternatives and patient-doctor relationship. Many patients "live" their disease as the center of their life, sometimes creating great problems to physicians. Doctors should dedicate enough time to the patient, show interest in patient's problems, make a rigorous physical examination, and perform an appropriate work-up individualized for each patient. Regarding therapeutic decisions, it is important to reassure patients about the absence of organic disease. However it should be avoid to tell them that no disease exist at all; instead, the functional nature of the disease must be emphasized, explaining what and how upper GI tract is malfunctioning; Patients should know that doctor understand their symptoms are true symptoms; also, they must be informed bout the excellent outcome, without changes in life expectancy and a natural trend to improve with time; doctor should help patients to recognize that emotional situation have a great impact in disease course; and a therapeutic plan should be discussed and agreed with patients.
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PMID:[Functional dyspepsia. The physician and the patient]. 1461 48

Functional dyspepsia is a common chronic condition. It can have a major impact on quality of life and remains a large burden on healthcare resources. Its underlying mechanisms are not fully understood and therapies are mainly empirical. In this review, we summarize the best evidence on available therapeutic interventions in functional dyspepsia. Helicobacter pylori eradication, for those infected, is likely a safe and cost-effective strategy but benefits only a minority. Antisecretory agents such as proton-pump inhibitors and histamine-2 receptor antagonists have shown some benefit and are recommended as the first-line option in the absence of H. pylori infection. There is a lack of strong evidence of benefit from prokinetic agents, and cisapride, the most studied agent, is largely unavailable. Antidepressants need to be adequately tested in functional dyspepsia, but both psychotherapy and hypnotherapy interventions have shown promising results. Herbal therapies need further study in these patients. 5-Hydroxytryptamine3 (5-HT(3)) and 5-HT(4) receptor antagonists, and cholecystokinin type A and neurokinin receptor antagonists remain promising emerging therapies.
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PMID:Treatment of Functional Dyspepsia. 1501 26


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