ArticleInflammopharmacology2018
Precancerous ACF induction affects their regional distribution forsaking oxidative stress implication in 1,2-dimethylhydrazine-induced colon carcinogenesis model.
Article in Inflammopharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 7 citations in OpenAlex.
- The Pro-Oxidant, Apoptotic and Anti-Angiogenic Effects of Selenium Supplementation on Colorectal Tumors Induced by 1,2-Dimethylhydrazine in BALB/C Mice.Reports of biochemistry & molecular biology · 2019Article
- Germinated brown rice combined withFood science & nutrition · 2019Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 3 countries.
Funding
Abstract
Colon cancer is thought to develop in a stepwise fashion. In this study, the relationship between aberrant crypt foci (ACF) regional distribution and oxidative stress evolution was studied in a murine model of initial colon carcinogenesis induced by dimethylhydrazine (DMH). Mice were given 2 weekly subcutaneous injections of DMH (20 mg/kg) and killed at the 10th, 12th or 14th week. ACF was scored for number, distribution and crypt multiplicity after methylene-blue coloration and histologically analyzed afterwards. Oxidative stress evaluation was assessed through myeloperoxidase activity (MPO), nitric oxide (NO), L-ornithine and malondialdehyde (MDA) levels as well as antioxidant CAT, SOD and GSH. DMH treatment showed a shift from small to large ACF but also from distal to proximal colon between week 10 and 14 (p < 0.05). This was further illustrated histologically with crypt disruption and mucin depletion. Oxidative stress imbalance was observed in all DMH-treated groups. All markers (MPO, MDA and NO) peaked at week 12 (p < 0.01) and decreased at week 14 (p < 0.05) while L-ornithine decreased through all protocol (p < 0.01). Antioxidants decreased in all points (p < 0.05) but only GSH increased at week 14 (p < 0.05). This work provided insight to response-patterns of oxidative stress between distal and proximal colon, showing for the first time a decreasing implication during the development process and suggesting other inflammatory, immunologic or microbiota implication as factors to be considered during chemotherapy approaches.
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Registered trials
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