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Article Publish Status: FREE
Abstract Title:

Chemoprevention of DMH-Induced Early Colon Carcinogenesis in Male BALB/c Mice by Administration ofDTA81.

Abstract Source:

Microorganisms. 2020 Dec 14 ;8(12). Epub 2020 Dec 14. PMID: 33327620

Abstract Author(s):

Vinícius da Silva Duarte, Bruna Cristina Dos Santos Cruz, Armin Tarrah, Roberto Sousa Dias, Luiza de Paula Dias Moreira, Wilson José Fernandes Lemos Junior, Lívia Carneiro Fidélis Silva, Gabriele Rocha Santana, Leandro Licursi de Oliveira, Maria do Carmo Gouveia Peluzio, Hilario Cuquetto Mantovani, Viviana Corich, Alessio Giacomini, Sérgio Oliveira de Paula

Article Affiliation:

Vinícius da Silva Duarte

Abstract:

We evaluated the effects of the probiotic candidateDTA81 (DTA81) on liver oxidative stress, colonic cytokine profile, and gut microbiota in mice with induced early colon carcinogenesis (CRC) by 1,2-dimethylhydrazine (DMH). Animals were divided into four different groups (= 6) and received the following treatments via orogastric gavage for 8 weeks: Group skim milk (GSM): 300 mg/freeze-dried skim milk/day; GroupDTA81 (DTA81): 3× 10colony-forming units (CFU)/day; GroupGG (LGG): 3× 10CFU/day; Group non-intervention (GNI): 0.1 mL/water/day. A single DMH dose (20 mg/kg body weight) was injected intraperitoneally (i.p), weekly, in all animals (seven applications in total). At the end of the experimental period, DTA81 intake reduced hepatic levels of carbonyl protein and malondialdehyde (MDA). Moreover, low levels of the pro-inflammatory cytokines Interleukin-6 (IL-6) and IL-17, as well as a reduced expression level of the proliferating cell nuclear antigen (PCNA) were observed in colonic homogenates. Lastly, animals who received DTA81 showed an intestinal enrichment of the genusand increased concentrations of caecal acetic acid and total short-chain fatty acids. In conclusion, this study indicates that the administration of the probiotic candidate DTA81 can have beneficial effects on the initial stages of CRC development.

Study Type : Animal Study

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