Journal
ONCOLOGIST
Volume 15, Issue 9, Pages 1009-1015Publisher
WILEY
DOI: 10.1634/theoncologist.2010-0097
Keywords
Radiotherapy; Cancer-related fatigue; Citrulline; Acute-phase proteins
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Funding
- King Gustav V Jubilee Clinic Cancer Research Foundation
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Background. The association between cancer-related fatigue and pathological processes in the body is largely unknown. This study was designed to investigate a possible linkage between fatigue and intestinal injury during pelvic radiotherapy. Methods. Twenty-nine women undergoing pelvic radiotherapy for anal or uterine cancer were prospectively followed. Fatigue and diarrhea were assessed using patient self-reported questionnaires. Plasma citrulline concentration, as a sign of intestinal injury, and C-reactive protein, orosomucoid, albumin, alpha(1)-rantitrypsin, and haptoglobin, as signs of systemic inflammation, were analyzed. Results. Fatigue increased significantly (p < .001) and citrulline decreased significantly (p < .001) during treatment. A significant negative correlation (r = -0.40; p < .05) was found between fatigue and epithelial atrophy in the intestine (as assessed by plasma citrulline) after 3 weeks of treatment and a significant positive correlation (r = 0.75; p < .001) was found between fatigue and diarrhea. Signs of systemic inflammation were evident, with significant increases in serum orosomucoid, serum haptoglobin (p <.05) and serum a alpha(1)-antitrypsin (p < .001) and a significant decrease in serum albumin (p < .001). Conclusion. The present study indicates a link between fatigue and intestinal injury during pelvic radiotherapy. This observation should be considered as a preliminary finding because of the small sample size but may serve as a rationale for therapeutic interventions aimed at alleviating both fatigue and gastrointestinal symptoms during pelvic radiotherapy. The Oncologist 2010;15:1009-1015
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