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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/48490

Title: A galacto-oligosaccharides preparation derived from lactulose protects against colorectal cancer development in an animal model
Author(s): Fernández Fernández, Javier
Moreno, F. J.
Olano, Agustín
Clemente, Alfonso
Villar Granja, Claudio Jesús
Advisor: Lombó Brugos, Felipe
Issue date: 2018
Publisher version: https://doi.org/10.3389/fmicb.2018.02004
Citation: Frontiers in Microbiology, 9, p. 2004- (2018); doi: 10.3389/fmicb.2018.02004
Format extent: p. 2004-
Description: Dataset disponible en la versión del editor.
Abstract: Colorectal cancer (CRC) is one of the most common neoplasias worldwide, and its incidence is increasing. Consumption of prebiotics is a useful strategy in order to prevent this important disease. These nutraceutical compounds might exert protective biological functions as antitumors. In order to test the chemopreventive effect of GOS-Lu (galacto-oligosaccharides derived from lactulose) prebiotic preparation against this cancer, an animal model (Rattus norvegicus F344) was used. In this model, two doses of azoxymethane (10 mg/kg) and two treatments with dextran sodium sulfate (DSS) were administered to the animals. Animals were fed for 20 weeks, and either control drinking water or drinking water containing 10% (w/w) GOS-Lu prebiotic preparation was provided to them. Animals were sacrificed after those 20 weeks, and their digestive tract tissues were analyzed. The results revealed a statistically significant reduction in the number of colon tumors in the GOS-Lu cohort with respect to control animals. Metagenomics sequencing was used for studying colon microbiota populations, revealing significant reductions in populations of pro-inflammatory bacteria families and species, and significant increases in interesting beneficial populations, such as Bifidobacterium. Therefore, oral administration of the prebiotic GOS-Lu preparation may be an effective strategy for preventing CRC.
URI: http://hdl.handle.net/10651/48490
Sponsored: This work was funded by the research project grants RTC-2014-1525 from MINECO (Spanish Ministry of Economy, Industry and Competitiveness), AGL2017-84614-C2-1-R from MINECO, and AGR2011-7626 from Junta de Andalucía (Spain).
Project id.: MINECO/RTC-2014-1525
Appears in Collections:Biología Funcional
Investigaciones y Documentos OpenAIRE

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