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  • 1
    ISSN: 1436-2813
    Keywords: Clara cell ; protein 1 ; lung cancer ; surgery ; postoperative pulmonary complication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Serum levels of protein 1 (P1), a Clara cell protein known to have an antiinflammatory effect, were studied in 33 patients with lung cancer before surgery, and 3, 7, 14, 21 days, and 2 months after surgery. The preoperativeP1 values of the lung cancer patients were compared with those of 66 healthy controls matched by sex and age. The postoperative changes in P1 which occurred in the lung cancer patients were compared with those in 16 patients who underwent laparotomy for gastric or colon cancer. There was no significant difference in the P1 values between the lung cancer patients and the healthy controls; however, the postoperativeP1 values showed a significant decrease 3, 7, (P〈0.001), and 14 days (P 〈0.05) postoperatively, recovering to normal within 2 months after surgery. One patient who died of postoperative pneumonia showed decreasing serum P1 levels until death. None of the laparotomy patients showed any decrease inP1 serum levels. Thus, we conclude that: (a) serumP1 levels do not differ between lung cancer patients and healthy individuals; (b) serumP1 levels significantly decrease in the early postoperative period, but recover within 2 months after lung resection; and (c) the postoperative changes that occur in serumP1 levels could provide important information about recovery from intraoperative lung damage.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-2307
    Keywords: Hamartoma ; Parotid gland ; Immunohistochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of a solid parotid tumour in a 16-year-old boy is presented. Histologically, the tumour demonstrated some peculiar findings. An acinar pattern was predominant although every component seen in the normal salivary gland was present, namely, serous and mucous gland acini, ducts, myoepithelial cells, adipose and lymphoid tissue. Large eosinophilic granules were abundant in the large acinar cell cytoplasm. Immunohistochemically, the tumour demonstrated the proteins which are present in the normal parotid gland, for example, amylase, lactoferrin and lysozyme. Electron microscopic features were quite similar to those of normal parotid tissue except for accumulation of a large number of cytoplasmic granules in the acinar cells. There has been no previous report of a tumour with the same features as seen in this case. Our pathological diagnosis is hamartoma, although the possibility of hyperplasia or neoplasia can not be excluded.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0878
    Keywords: Duodenum ; Cholecystokinin ; Gastrin ; Immunocytochemistry ; Ultrastructure ; Man
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Human duodenal endocrine cells reactive with antibodies to cholecystokinin (CCK) 33 (10–20) and/or gastrin 34 (1–15) were studied by a combination of immunohistochemical and electron-microscopic methods. By immunohistochemistry, three types of endocrine cells were distinguished in human duodenal mucosa, i.e., those only positive for only CCK, those positive for both CCK and gastrin and those only positive for only gastrin. Ultrastructurally, the first cell type is characterized by many secretory granules with an eccentric dense core (mean diameter; 271+-74 nm). The second cell type, which was less frequent than the other two, has ultrastructural features that resemble type-I cells. The last cell type was composed of two types of cells containing small secretory granules identical to those of IG cells (mean diameter; 171+-31 nm) or large secretory granules indistinguishable from those of I cells (mean diameter; 286+-50 nm).
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Digestive diseases and sciences 38 (1993), S. 1549-1553 
    ISSN: 1573-2568
    Keywords: α-antitrypsin ; pseudomembranous enteritis ; vascular neurofibromatosis ; ischemic bowel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 44-year-old man with neurofibromatosis suffered from severe diarrhea and progressive hypoproteinemia. Enteric protein loss was confirmed by an α-antitrypsin clearance test. An x-ray study showed irregular mucosa in the distal segment of the ileum. Protein loss has subsided after ileocecal resection. Laparotomy and radiological examinations failed to demonstrate neurofibroma or other tumors in the abdomen. The resected ileum revealed marked edema of the wall and a pseudomembranous enteritis-like appearance in the luminal surface. Microscopically, lymphatic vessels in the intestinal wall were dilated. Marked thickening of the intima with spindle cell proliferation was observed in the mesenteric arteries and veins. This finding is consistent with vascular changes in neurofibromatosis. These vascular changes in the mesentery due to neurofibromatosis may cause proteinlosing enteropathy by altering the hemodynamic state and microvascular permeability in the intestine.
    Type of Medium: Electronic Resource
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