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排序方式: 共有379条查询结果,搜索用时 15 毫秒
121.
Treatment of secretory pituitary adenoma with radiation therapy 总被引:2,自引:0,他引:2
Clarke SD; Woo SY; Butler EB; Dennis WS; Lu H; Carpenter LS; Chiu JK; Thornby JI; Baskin DS 《Radiology》1993,188(3):759
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We have tested the hypothesis that tumor necrosis factor (TNF), by binding to and activating granulocytes, may contribute to the pathogenesis of gram-negative sepsis and the adult respiratory distress syndrome (ARDS). Buffy coat granulocytes incubated with as little as 0.5 ng/mL of recombinant TNF (rTNF) showed a dose-related increase in nitroblue tetrazolium dye reduction, in granulocyte polarization, in superoxide anion release, and in visually apparent aggregation. Purified lipopolysaccharide (1 microgram/mL) caused polymorphonuclear (PMN) aggregation and activation that was neutralized by polymyxin B. The release of superoxide was augmented by preincubation of the PMNs with gamma-interferon. The effect of TNF was neutralized by TNF- specific murine monoclonal antibodies but not by polymyxin B. Scatchard analysis of 125I-rTNF binding to granulocytes revealed about 1,200 receptors per cell with a Kd of 4.9 X 10(-10) mol/L. These results suggest that the release of TNF by mononuclear phagocytes contributes to granulocyte activation and aggregation during inflammation. 相似文献
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Angiographic diagnosis of small intestinal intussusception 总被引:1,自引:0,他引:1
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Reconstruction modes following gastrectomy. Results of experimental and clinical controlled trials. In animal experiments four reconstruction methods following gastrectomy were compared: Roux-en Y reconstruction with (n = 33) and without pouch (n = 50) and isoperistaltic jejunum interposition with (n = 26) and without pouch (n = 55). The results were mostly influenced by the extent of esophagitis, documenting the reflux reduction by a pouch. Weight gain was slightly higher following jejunum interposition.Roux-en Y pouch reconstruction with jejunum interposition with pouch was compared in a randomized controlled trial. The additional operative effort of jejunum interposition did not achieve benefits in outcome. Therefore, Roux-en Y reconstruction should be advocated as standard reconstruction. The second randomized controlled trial compared Roux-en Y reconstruction with and without pouch. After more than three years, there was an advantage in life quality for patients with pouch indicating that patients with a favorable prognosis following gastrectomy should be reconstructed with a pouch. 相似文献
130.
Gold LS De Roos A J Ray RM Wernli K Fitzgibbons ED Gao DL Astrakianakis G Feng Z Thomas D Checkoway H. 《中国神经肿瘤杂志》2006,4(2):124-124
OBJECTIVES: This study assessed the associations between brain tumors and specific processes and exposures among female textile workers in Shanghai, China. METHODS: A case-cohort study was conducted that was nested in a cohort of textile workers originally included in a randomized trial of breast self-examination. Incident brain tumor cases (N=114) were identified from 1989 to 1998 from a tumor and death registry operated by the Shanghai Textile Industry Bureau. A subcohort (N=3188), representing an agestratified random sample of the entire cohort, was selected as a comparison group. 相似文献