Changes in biologic markers of oxidative stress and plasma endotoxin levels in gynecologic cancer patients treated with pelvic radiotherapy: a pilot studyopen access
- Authors
- Kim, Hak Jae; Kim, Jin Ho; Ha, Sung Whan; Wu, Hong-Gyun; Choi, Jin Hwa; Lee, Kyung-Mi; Kang, Seung Wan
- Issue Date
- Apr-2012
- Publisher
- KOREAN SOC GYNECOLOGY ONCOLOGY & COLPOSCOPY
- Keywords
- Adverse effects; Endotoxins; Oxidative stress; Radiotherapy
- Citation
- JOURNAL OF GYNECOLOGIC ONCOLOGY, v.23, no.2, pp 103 - 109
- Pages
- 7
- Journal Title
- JOURNAL OF GYNECOLOGIC ONCOLOGY
- Volume
- 23
- Number
- 2
- Start Page
- 103
- End Page
- 109
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/71963
- DOI
- 10.3802/jgo.2012.23.2.103
- ISSN
- 2005-0380
2005-0399
- Abstract
- Objective: We conducted a pilot study to evaluate the effects of pelvic radiotherapy on biologic markers of oxidative stress and plasma endotoxin levels, and to assess the relationship between the changes of such factors and radiotherapy-related complications. Methods: Twelve gynecologic cancer patients who were treated via pelvic radiotherapy with or without concurrent chemotherapy were enrolled in this study. Biologic markers of oxidative stress, such as glutathione (GSH) and oxidized glutathione (GSSG), as well as endotoxin levels, were measured weekly during treatment. Subjective symptoms were assessed using the Korean version of the EORTC QLQ-C30 at the baseline and on the 5th week of radiotherapy. Results: No changes were noted in the level of GSH in whole blood, but the GSH/GSSG ratio was reduced dramatically after the initiation of radiotherapy. The mean plasma endotoxin for all patients tended to increase and persisted during radiotherapy, and the number of patients who evidenced clinically significant endotoxin levels (defined as >0.005 EU/mL) also increased. Nausea/vomiting and diarrhea were significantly changed (p=0.019 and p<0.001, respectively). A significant relationship was noted to exist between the changes in the endotoxin level and nausea/vomiting (p=0.001). However, such symptoms did not correlate with the changes of oxidative stress markers. Conclusion: Pelvic radiotherapy oxidized the GSH redox system and increased plasma endotoxin. Further investigations containing interventional and longitudinal studies will be required to assess the effects of the changes in oxidative stress markers and endotoxin on radiotherapy-related adverse events.
- Files in This Item
-
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/71963)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.