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)

With the ever-growing armamentarium of pharmacological agents, the gastrointestinal drug-induced side effects of dyspepsia, nausea, vomiting, diarrhoea and constipation are increasingly seen. They are often self-limiting and without serious sequelae, but of greater concern is drug-induced mucosal ulceration that can manifest as gastrointestinal haemorrhage, stricture and perforation. These complications are mainly attributable to NSAIDs and aspirin, which can injure the mucosa anywhere along the gastrointestinal tract. These iatrogenic serious side effects can be reduced with co-prescription of a proton pump inhibitor, substitution of a COX-2 inhibitor and eradication of Helicobacter pylori when the bacterium is present. Other recognised gastrointestinal complications include small intestinal diaphragm, microscopic colitis, a range of hepatotoxic effects and pancreatitis. The introduction of new classes of drugs has resulted in new adverse effects that require consideration in patients presenting with gastroenterological symptoms. These include pill oesophagitis from bisphosphonates and ischaemic colitis relating to serotonin antagonists. Here, the authors review the literature on drug-induced complications of the gastrointestinal tract and present the pertinent management issues relevant to clinical practice.
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PMID:Drug-induced side effects affecting the gastrointestinal tract. 1677 95

Intraductal papillary mucinous neoplasms include a large spectrum of lesions communicating with the Wirsung duct, having a variable invasiveness from benign or borderline, to malignant (carcinoma in situ and invasive cancer). Final diagnosis is based on endoscopic ultrasound (EUS)-guided fine needle aspiration and histopathologic exam of surgical specimens. We present the case of a 28-year-old woman, with several episodes of acute recurrent pancreatitis in the past 6 months, admitted for dyspepsia, nausea and loss of appetite. Imaging studies (transabdominal ultrasonography, CT scanning, MR cholangiopancreatography) showed a macrocystic, multilocular, corporeal tumor, communicating with the retrograde dilated Wirsung duct. EUS revealed hypoechoic material inside the cysts, raising the suspicion of an intraductal papillary mucinous neoplasm. Diagnosis was confirmed by EUS-guided fine needle aspiration, which found columnar mucinous cells within a mucin-rich fluid. The imaging evaluation was repeated after two years, showing a rapid evolution of the tumor. The patient refused surgical exploration and caudal pancreatectomy. In the context of the absence of clinical symptoms, the indolent evolution of these tumors and the excellent prognosis after resection, we consider that early identification and regular follow-up by EUS with fine needle aspiration is imperative, especially because of the limited success of other imaging methods.
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PMID:Natural evolution of an intraductal papillary mucinous neoplasm of the pancreas. A case report. 1741 Feb 97

Gastrin and cholecystokinin (CCK) are two of the oldest hormones and within the past 15 years there has been an exponential increase in knowledge of their pharmacology, cell biology, receptors (CCK1R and CCK2R), and roles in physiology and pathological conditions. Despite these advances there is no approved disease indication for CCK receptor antagonists and only a minor use of agonists. In this review, the important factors determining this slow therapeutic development are reviewed. To assess this it is necessary to briefly review what is known about the roles of CCK receptors (CCK1R and CCK2R) in normal human physiology, their role in pathologic conditions, the selectivity of available potent CCKR agonists/antagonists as well as to review their use in human conditions to date and the results. Despite extensive studies in animals and in humans, recent studies suggest that monotherapy with CCK1R agonists will not be effective in obesity, nor CCK2R antagonists in panic disorders or CCK2R antagonists to inhibit growth of pancreatic cancer. Areas that require more study include the use of CCK2R agonists for imaging tumors and radiotherapy, CCK2R antagonists in hypergastrinemic states especially with long-term PPI use and for potentiation of analgesia as well as use of CCK1R antagonists for a number of gastrointestinal disorders [motility disorders (irritable bowel syndrome, dyspepsia, and constipation) and pancreatitis (acute and chronic)].
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PMID:Progress in developing cholecystokinin (CCK)/gastrin receptor ligands that have therapeutic potential. 1799 37

Eosinophilic gastroenteritis (EG) is an uncommon disease characterized by focal or diffuse eosinophilic infiltration of the gastrointestinal tract, and is usually associated with dyspepsia, diarrhea and peripheral eosinophilia. Diffuse gastrointestinal tract and colonic involvement are uncommon. The endoscopic appearance may vary from normal to mucosal nodularity and ulceration. Gastrointestinal obstruction is unusual and is associated with predominantly muscular disease. We present five unusual cases of EG associated with gastric outlet and duodenal obstruction. Two cases presented with acute pancreatitis and one had a history of pancreatitis. Four cases responded well to medical therapy and one had recurrent gastric outlet obstruction that required surgery. Four out of the five cases had endoscopic and histological evidence of esophagitis and two had colitis. Two patients had ascites. These cases reaffirm that EG is a disorder with protean manifestations and may involve the entire gastrointestinal tract. Gastric outlet and/or small bowel obstruction is an important though uncommon presentation of EG. It may also present as esophagitis, gastritis with polypoid lesions, ulcers or erosions, colitis and pancreatitis and may mimic malignancy.
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PMID:Unusual presentations of eosinophilic gastroenteritis: case series and review of literature. 1941 90

Annular pancreas is a rare embryonal abnormality. Its manifestation in adulthood is often pinpointed with a substantial delay, which is most often attributed to pancreatitis, biliary pathology or dyspepsia. We present a case of a 28-year-old woman who had exacerbating symptoms of high bowel obstruction from 20th week of pregnancy, progressing after premature delivery. Diagnostic work-up revealed partial annular pancreas compressing the duodenum. Despite attempts of conservative treatment, her state deteriorated to such an extent that surgery was indicated and gastrojejunal bypass created. Her postoperative recovery was uneventful. In cases in which symptoms of high bowel obstruction in pregnancy persist and prostration occurs, we suggest close monitoring and a more thorough diagnostic approach. The question remains whether annular pancreas presents a cause of pathologic findings, a cofactor, or a mere accidental diagnosis in the development of superposed pathologies.
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PMID:Symptoms of annular pancreas exacerbated by pregnancy. 1962 72

Gastrointestinal endoscopy including colonoscopy, esophagogastroduodenoscopy, and endoscopic retrograde cholangiopancreatography (ERCP) are safe and efficacious in elderly patients. Screening colonoscopies have little efficacy in patients over 80 years. Colonoscopies performed for bleeding or iron-deficiency anemia have a higher yield in elderly patients. Colonic preparations were well tolerated and colonoscopic success rates are high in elderly patients. However, poor colonic preparation is more likely in these patients. Esophagogastroduodenoscopy is a high-yield procedure with no significant increase in adverse events in patients over 80 years with symptoms including dyspepsia and dysphagia. ERCP in the elderly carries a high degree of success with low complication rates. Elderly patients undergoing ERCP carry similar risks of bleeding and perforation and a lower risk of pancreatitis compared with younger patients. Advanced age should not be regarded as an absolute contraindication to any gastrointestinal endoscopy procedure.
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PMID:Endoscopy in the elderly: a review of the efficacy and safety of colonoscopy, esophagogastroduodenoscopy, and endoscopic retrograde cholangiopancreatography. 2004 71

Systemic Lupus Erythematosus (SLE) is an autoimmune disease, with multisystemic involvement. Gastrointestinal symptoms are common, like nausea, vomiting and dyspepsia. Acute pancreatitis is an unusual manifestation of SLE, being an important differential diagnosis in evaluation of abdominal pain. The patients usually presents with pain of variable intensity, some occasions simulating acute abdomen. Several factors have been implicated in the pathogenesis of this condition, such as vasculitis, drugs and antiphospholipid antibodies. The role of corticosteroids as etiologic factor remains controversial. Due to the rarity of SLE associated to pancreatitis, we report two cases of patients with severe inflammatory process. In one case, it was used corticosteroids in high doses during treatment, with good outcome. In another, the patient died because of pancreatic pseudocyst rupture and its postoperative hemodynamic complications. In the reported cases, predisposing factors for acute pancreatitis were not verified, so it was considered a primary manifestation of SLE activity.
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PMID:[Acute pancreatitis and spontaneous rupture of pancreatic pseudocyst in systemic lupus erythematosus]. 2071 Oct 96

Due to the anatomical characteristics of the biliary tract, Ascaris lumbricoides rarely settles in the gallbladder, which makes biliary ascariasis a rare clinical condition. Ultrasonography plays a significant and practical role in the diagnosis and follow-up of suspected cases of biliary ascariasis. The 15-year-old case presented herein had been complaining of abdominal pain and dyspepsia for three months, and the clinical and laboratory findings for the patient indicated acute abdomen. Abdominal ultrasonography showed worms consistent with Ascaris inside a normal-sized gallbladder, dilated choledochus and the pancreatic duct. We started antiparasitic treatment in the patient, with cholangitis and pancreatitis diagnoses. Post-treatment follow-up ultrasonography showed a normal gallbladder, choledochus and pancreatic duct.
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PMID:A rare case of ascariasis in the gallbladder, choledochus and pancreatic duct. 2133 4

Sjogren syndrome (SS) is an autoimmune disease that affects exocrine glands and therefore may affect the gastrointestinal system, from the mouth, esophagus, and bowel to the liver and pancreas. Oral involvement in SS is mainly characterized by dryness, with a wide spectrum of symptoms, from mild-to-severe xerostomia with dysgeusia and tooth decay. The dysphagia, although common, does not correlate with the reduced salivary flow rate or the dysmotility that may be present. Dyspepsia, found in up to 23% of patients, may be associated with gastritis, reduced acid production, and antiparietal cell antibodies, but rarely pernicious anemia. Pancreatic involvement, although rare, includes pancreatitis and pancreatic insufficiency. The most common causes of liver disease are primary biliary cirrhosis, autoimmune hepatitis, nonalcoholic fatty liver disease, and hepatitis C virus (HCV). Although abnormal liver tests are found in up to 49% of patients, they are usually mild. Although sicca syndrome, abnormal histology of the salivary glands, and abnormal sialograms are common in primary biliary cirrhosis, the antibodies to Ro/SSA or La/SSB antigens are infrequent. Xerostomia, sialadenitis, abnormal salivary flow rates, and abnormal Schirmer test in HCV vary widely among the studies, although the antibodies to Ro/SSA or La/SSB are only 1%. Several studies show that HCV is in saliva, although how this may impact sicca syndrome or SS in HCV is unclear. SS as a disease of exocrine glands affects many parts of the gastrointestinal system.
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PMID:Gastrointestinal and hepatic manifestations of Sjogren syndrome. 2215 20

Eosinophilic gastroenteritis (EGE) is characterized by eosinophilic infiltration of the digestive organs, most commonly of the stomach and the duodenum. Symptoms of EGE are nonspecific and include nausea, vomiting, abdominal pain, dyspepsia, malabsorption, ascites and weight loss. The various symptoms of EGE depend on its location and the depth of gastrointestinal eosinophil infiltration. We report a case presenting with acute pancreatitis caused by a milk allergy. The patient's symptoms rapidly improved after treatment with corticosteroids, and he remained symptom-free for more than 20 months by the elimination of cow's milk from his diet. Serum titers of pancreatic enzymes and total bilirubin simultaneously recovered and blood eosinophil counts normalized. The causative allergens of EGE are too various to detect; however, allergologic exams revealed that a cow's milk allergy had provoked EGE in our case. Adult-onset cow's milk allergies are rare; when seen, however, they may present severe complications such as anaphylaxis, gastroenteritis and pancreatitis. When unaccountable gastrointestinal symptoms are observed, EGE caused by food allergies should be included in the differential diagnosis.
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PMID:Eosinophilic gastroenteritis due to cow's milk allergy presenting with acute pancreatitis. 2262 71


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