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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Multicenter, phase 3 trial comparing selenium supplementation with observation in gynecologic radiation oncology.

Abstract Source:

Int J Radiat Oncol Biol Phys. 2010 Feb 2. Epub 2010 Feb 2. PMID: 20133068

Abstract Author(s):

Ralph Muecke, Lutz Schomburg, Michael Glatzel, Regina Berndt-Skorka, Dieter Baaske, Berthold Reichl, Jens Buentzel, Guenter Kundt, Franz J Prott, Alexander Devries, Guenther Stoll, Klaus Kisters, Frank Bruns, Ulrich Schaefer, Norman Willich, Oliver Micke,

Abstract:

PURPOSE: We assessed whether adjuvant supplementation with selenium improves the selenium status and reduces side effects of patients treated by radiotherapy (RT) for cervical and uterine cancer. METHODS AND MATERIALS: Whole-blood selenium concentrations were measured in patients with cervical cancer (n = 11) and uterine cancer (n = 70) after surgical treatment, during RT, at the end of RT, and 6 weeks after RT. Patients with initial selenium concentrations of less than 84mug/L were randomized before RT either to receive 500 mug of selenium (in the form of sodium selenite [selenase(R), biosyn Arzneimittel GmbH, Fellbach, Germany]) by mouth on the days of RT and 300 mug of selenium on the days without RT or to receive no supplement during RT. The primary endpoint of this multicenter Phase 3 study was to assess the efficiency of selenium supplementation during RT; the secondary endpoint was to decrease radiation-induced diarrhea and other RT-dependent side effects. RESULTS: A total of 81 patients were randomized. We enrolled 39 in the selenium group (SG) and 42 in the control group (CG). Selenium levels did not differ between the SG and CG upon study initiation but were significantly higher in the SG at the end of RT. The actuarial incidence of diarrhea of Grade 2 or higher according to Common Toxicity Criteria (version 2) in the SG was 20.5% compared with 44.5% in the CG (p = 0.04). Other blood parameters, Eastern Cooperative Oncology Group performance status, and self-reported quality of life were not different between the groups. CONCLUSIONS: Selenium supplementation during RT is effective in improving blood selenium status in selenium-deficient cervical and uterine cancer patients and reduces the number of episodes and severity of RT-induced diarrhea.

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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