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Träfflista för sökning "WFRF:(Peters E) srt2:(2000-2004)"

Sökning: WFRF:(Peters E) > (2000-2004)

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  • Garte, S, et al. (författare)
  • Metabolic gene polymorphism frequencies in control populations
  • 2001
  • Ingår i: Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. - 1055-9965. ; 10:12, s. 1239-1248
  • Tidskriftsartikel (refereegranskat)
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  • Smits, KM, et al. (författare)
  • Association of metabolic gene polymorphisms with tobacco consumption in healthy controls
  • 2004
  • Ingår i: International Journal of Cancer. - : Wiley. - 0020-7136 .- 1097-0215. ; 110:2, s. 266-270
  • Tidskriftsartikel (refereegranskat)abstract
    • Polymorphisms in genes that encode for metabolic enzymes have been associated with variations in enzyme activity between individuals. Such variations could be associated with differences in individual exposure to carcinogens that are metabolized by these genes. In this study, we examine the association between polymorphisms in several metabolic genes and the consumption of tobacco in a large sample of healthy individuals. The database of the International Collaborative Study on Genetic Susceptibility to Environmental Carcinogens was used. All the individuals who were controls from the case-control studies included in the data set with information on smoking habits and on genetic polymorphisms were selected (n = 20,938). Sufficient information was available on the following genes that are involved in the metabolism of tobacco smoke constituents: CYPIAI, GSTMI, GSTTI, NAT2 and GSTPI. None of the tested genes was clearly associated with smoking behavior. Information on smoking dose, available for a subset of subjects, showed no effect of metabolic gene polymorphisms on the amount of smoking. No association between polymorphisms in the genes studied and tobacco consumption was observed; therefore, no effect of these genes on smoking behavior should be expected.
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  • Briel, J W, et al. (författare)
  • Prevalence and risk factors for ischemia, leak, and stricture of esophageal anastomosis: Gastric pull-up versus colon interposition
  • 2004
  • Ingår i: Journal of the American College of Surgeons. - : Ovid Technologies (Wolters Kluwer Health). - 1879-1190 .- 1072-7515. ; 198:4, s. 536-541
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Reports of esophageal anastomotic complications often involve more gastric than colonic reconstructions and are incomplete because of fragmented followup by physicians unfamiliar with the surgical procedure. STUDY DESIGN: Three hundred ninety-three consecutive esophagectomy patients had prevalence and risk factors determined for graft ischemia and anastomotic leak; 363 of these patients followed for more than I month (median 15 months) had prevalence and risk factors determined for anastomotic stricture. RESULTS: Conduit ischemia occurred in 36 (9.2%) and anastomotic leak in 43 patients (10.9%). Risk factor for ischemia was comorbid conditions requiring therapy (Odds ratio [OR]: 2.2 [95% CI 1.1-4.3]), and for leak were ischemia (OR: 5.5 [95% CI 2.5-12. 1]), neoadjuvant therapy (OR: 2.2 [95% CI 1.1-4-5]), and comorbid conditions (OR: 2.1 [95% Cl 1.1-3.9]). A stricture developed in 80 patients (22.0%). Risk factors were ischemia (OR: 4.4 [95% Cl 2.0-9.6]), anastomotic leak (OR: 3.8 [95% C11.9-7.6]), and increasing preoperative weight (p = 0.022). The prevalence of ischemia was similar after gastric (10.4%) versus colonic (7.4%) reconstruction; leak and stricture were more common (14.3% versus 6.1%, p = 0.013, 31.3% versus 8.7%, p < 0.000 1, respectively) and strictures were more severe (11.2% versus 2%, p = 0.00 1) after gastric pull-up. Patients free of ischemia and leak who developed stricture were more likely to have had a gastric pull-up (25% versus 7%, p < 0. 000 1). Dilatation was effective treatment in 93% of patients. CONCLUSIONS: After esophagectomy 10% of patients will develop conduit ischemia or an anastomotic leak and 22% will develop anastornotic stricture. Anastomotic leak and strictures are more common and the strictures are more severe after gastric pull-up compared with colon interposition. Dilatation is a safe and effective treatment.
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  • Lindquist, O.P.A., et al. (författare)
  • Ordinary and extraordinary dielectric functions of 4H- and 6H-SiC from 3.5 to 9.0 eV
  • 2001
  • Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 78:18, s. 2715-2717
  • Tidskriftsartikel (refereegranskat)abstract
    • We report ordinary (??c axis) and extraordinary (??c axis) dielectric function data of 4H- and 6H-SiC from 3.5 to 9.0 eV. These data, which were obtained by with spectroscopic ellipsometry, are also compared to recently reported ab initio calculations. Critical point energies were found using real and reciprocal space analysis. © 2001 American Institute of Physics.
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