Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0038358 (gastric ulcer)
 5,179 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A controlled prospective study was undertaken to determine if fluids which bathe malignancies may contain carcinoembryonic antigen (CEA) earlier in the course of gastrointestinal cancer than does plasma of the same patient and may offer a better means for diagnosis. CEA titers were normal (less than 2.5 ng per ml) in the plasma of 42 healthy volunteers. Normal CEA levels were also found in the plasma and in the colonic mucus of 14, the gastric juice of 18, duodenal drainage of 10, and bile of 11 normal control subjects. The colonic mucus of 3 patients with ulcerative colitis, gastric secretions of 5 benign gastric ulcer patients, bile specimens from 11 normal control subjects and from 5 gallstone patients contained CEA at concentrations below 2.5 ng per ml. Positive CEA titers were found in the fluids bathing tumors of all 23 patients with colonic carcinoma, 9 of 17 patients with gastric carcinoma, and all 6 patients with pancreatic carcinoma. In contrast, positive CEA titers were found in the plasma of only 16 of 23 patients with colon carcinoma, 6 of 17 patients with gastric carcinoma, and 4 of 6 patients with pancreatic carcinoma. Among 46 patients with gastrointestinal malignancies, CEA was detected in significant concentrations in the plasma of 26 patients and in fluids bathing tumors of 38 patients. These results indicate a significant association of adenocarcinoma of the colon with CEA-positive colonic mucus (P less than 0.01) and suggest the usefulness of assaying CEA in fluids bathing tumors for the detection of gastrointestinal malignancies.
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PMID:CEA levels in fluids bathing gastrointestinal tumors. 125 36

Case reports of five patients with pneumatosis intestinalis diagnosed by computed tomography (CT) are presented. Etiology, differential diagnoses, and clinical consequences arising from CT imaging are discussed. In four of the patients, pneumatosis was found to be secondary to gastric ulcer, colon carcinoma, metastasis in the mesentery, and trauma-induced mesenteric ischemia. In one patient, the etiology remained elusive. Using CT, both the extent and the distribution pattern of pneumatosis could be depicted, allowing for differentiation of primary and secondary forms and assessment of prognosis. Evaluation with a lung window is a pre-requisite for reliable diagnosis of pneumatosis with CT. The presence of gas in the mesenteric or portal venous system in mesenteric ischemia is indicative of an unfavorable prognosis.
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PMID:Computed tomography in pneumatosis intestinalis: differential diagnosis and therapeutic consequences. 858 Jul 46

Cyclooxygenase (COX) is the enzyme that catalyzes the conversion of arachidonic acid to prostaglandin endoperoxides. In addition to constitutive COX-1, inducible COX-2 has been discovered. COX-2 is induced not only in acute exudative rat carrageenin-induced pleurisy, but in granuloma formation/proliferative inflammation for the acceleration of angiogenesis. This means that COX-2 is induced in the healing process of wounds such as in granuloma of gastric ulcer and the proliferative stage of endometrium. COX-2 is also introduced in ovulation and parturition. Osteoblasts induce COX-2 to accelerate bone absorption. Induction of COX-2 in colon carcinoma is a recent, very exciting topic of investigation. We can learn about many unknown roles of COX-2 from its knockout mouse, but the results must be interpreted cautiously. Development of selective COX-2 inhibitors, such as NS-398, opened a new era in which the side effects of gastric and renal lesions by NSAIDs could be ignored. However, prolongation of would healing by the inhibitors and transient expression of COX-2 must be considered in medical intervention with selective COX-2 inhibitors. Nevertheless, acute exudative inflammation, granuloma formation and bone absorption in rheumatoid arthritis are good targets for these inhibitors and application of these inhibitors will be extended to dysmenorrhea, interruption of abortion and increasing survival rate of patients with colon carcinoma.
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PMID:[Multiple roles of inducible cyclooxygenase-2 and its selective inhibitors]. 925 72

The author reviewed pathologic features of 37 cases of malignant lymphoma in the gastrointestinal organs in the last 10 years in our pathology laboratory. The current WHO classification was adopted. The 37 cases consisted of 20 males and 17 female, and the age ranged from 46 to 89 years with a median of 69 years. Of the 37 cases, 25 cases (68%) were gastric lymphomas, 6 cases (16%) were small intestinal lymphomas, and 6 cases (16%) were colon lymphomas. Of the 37 cases, 35 cases (95%) were B-cell neoplasms and 2 cases (5%) were T-cell neoplasms. In the 25 gastric lymphomas (male:female=14:11, age range 46-84 years, median 70 years) 11 cases were diffuse large B-cell lymphomas, and 14 cases were extranodal marginal zone B-cell lymphomas (MALT lymphomas). The clinical endoscopic diagnosis was gastritis in 3, gastric ulcer in 3, gastric carcinoma in 7, carcinoid in 1, submucosal tumor in 1, malignant lymphoma in 2, and suspected MALT lymphoma in 8. In the 6 small intestinal lymphomas (male:female=2:4, age range 49-89 years, median 70 years), all cases were located in the ileum. Of the 6 cases, 4 were diffuse large B-cell lymphoma and 2 were peripheral T-cell lymphoma. One case showed multiple lymphomas, and one case was associated with rectal adenocarcinoma and one case with gastric MALT lymphoma. The clinical diagnosis was adenocarcinoma in 2, suspected lymphoma in 2, and ileal tumor in 2. In the 6 colon lymphomas (male:female=4:2, age range 69-86 years, median 74 years), 5 cases were diffuse large B-cell lymphomas and one case was follicular lymphoma. Clinical endoscopic diagnosis was GIST in 1, colon carcinoma in 4, and colon polyp in 1. Cases of Hodgkin's disease, mantle cell lymphoma, Burkitt lymphoma were not recognized in the present series. In summary, the author reported pathologic features of 37 cases of gastrointestinal malignant lymphoma in our laboratory in the last 10 years.
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PMID:Gastrointestinal malignant lymphoma: a pathologic study of 37 cases in a single Japanese institution. 2311 30