Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Reduction of Blood Oxidative Stress Following Colorectal Cancer Resection

Version 1 : Received: 18 September 2024 / Approved: 18 September 2024 / Online: 19 September 2024 (12:13:00 CEST)

How to cite: Sawai, K.; Goi, T.; Kimura, Y.; Koneri, K. Reduction of Blood Oxidative Stress Following Colorectal Cancer Resection. Preprints 2024, 2024091455. https://doi.org/10.20944/preprints202409.1455.v1 Sawai, K.; Goi, T.; Kimura, Y.; Koneri, K. Reduction of Blood Oxidative Stress Following Colorectal Cancer Resection. Preprints 2024, 2024091455. https://doi.org/10.20944/preprints202409.1455.v1

Abstract

Background: Colorectal cancer is a major global health burden, with surgical resection being the standard treatment aimed at curative tumor removal. Oxidative stress plays a crucial role in colorectal cancer progression and prognosis. This study hypothesized that physical removal of colorectal cancer, a primary source of oxidative stress, would reduce blood levels of reactive oxygen metabolite derivatives (d-ROMs), a marker of oxidative stress, and biologic antioxidant potential (BAP) levels, a marker of antioxidant potential. Methods: The study included 123 patients who underwent radical resection for colorectal cancer. d-ROM and BAP levels were measured before and one month after surgery. Results: The clinicopathological analysis showed a correlation between preoperative d-ROM levels and tumor size (p<0.001). The study confirmed a significant reduction in d-ROM levels following tumor resection, indicating reduced systemic oxidative stress. The reduction was significant in stages II and III but not in stage I. The d-ROM ratio before and after tumor resection was significantly higher in cases with positive lymph node metastasis and larger tumor size. BAP levels showed no significant changes post-surgery. Conclusion: These results suggest that d-ROMs could serve as a valuable biomarker for monitoring tumor burden and surgical efficacy in patients with colorectal cancer.

Keywords

colorectal cancer resection; oxidative stress; reactive oxygen metabolite derivatives; biologic antioxidant potential

Subject

Medicine and Pharmacology, Clinical Medicine

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