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TranscriptomicsDietary heme alters microbiota and mucosa of mouse colon without functional changes in host-microbe cross-talk.
Colon cancer is a major cause of cancer deaths in Western countries and is associated with diets high in red meat. Heme, the iron-porphyrin pigment of red meat, induces cytotoxicity of gut contents which injures surface cells leading to compensatory hyperproliferation of crypt cells. This hyperproli...
ORGANISM(S): Mus musculus 
2012-12-19 | E-GEOD-40672 | biostudies-arrayexpress
TranscriptomicsDietary heme stimulates epithelial cell turnover by downregulating feedback inhibitors of proliferation in murine colon (part 1)
The risk for colon cancer is associated with nutrition, especially with diets high in red meat. Red meat contains the iron porphyrin pigment heme, which induces cytotoxicity of the colon contents and epithelial hyperproliferation. Using a mouse model, we showed that heme caused damage to the colonic...
ORGANISM(S): Mus musculus 
2011-10-01 | E-GEOD-27847 | biostudies-arrayexpress
TranscriptomicsDietary heme stimulates epithelial cell turnover by downregulating feedback inhibitors of proliferation in murine colon (part 2)
The risk for colon cancer is associated with nutrition, especially high fat and low calcium diets high in red meat. Red meat contains the iron porphyrin pigment heme, which induces cytotoxicity of the colon contents and epithelial hyperproliferation. Using a mouse model, we showed that heme caused d...
ORGANISM(S): Mus musculus 
2011-10-01 | E-GEOD-27848 | biostudies-arrayexpress
TranscriptomicsMicrobiota facilitates dietary heme-induced epithelial hyperproliferation and hyperplasia by breaking the mucus barrier
Colorectal cancer risk is associated with diets high in red meat. Heme, the pigment of red meat, induces cytotoxicity of colonic contents and elicits epithelial damage and compensatory hyperproliferation, leading to hyperplasia. Here we explore the possible causal role of the gut microbiota in heme-...
ORGANISM(S): Mus musculus 
2015-08-03 | E-GEOD-40670 | biostudies-arrayexpress
TranscriptomicsSupplementary dietary calcium stimulates faecal fat and bile acid excretion, but does not protect against obesity and insulin resistance in C57BL/6J mice
There is increased interest in the potential protective role of dietary Ca in the development of metabolic disorders related to the metabolic syndrome. Ca-induced intestinal precipitation of fatty acids and bile acids as well as systemic metabolic effects of Ca on adipose tissue is proposed to play ...
ORGANISM(S): Mus musculus 
2011-03-03 | E-GEOD-18581 | biostudies-arrayexpress
TranscriptomicsSaturated fat stimulates obesity and hepatic steatosis and affects gut microbiota composition by an enhanced overflow of dietary fat to the distal intestine
We studied the effect of dietary fat type, varying in polyunsaturated/saturated fatty acid ratio's (P/S) on development of metabolic syndrome. C57Bl/6J mice were fed purified high-fat diets (45E% fat) containing palm oil (HF-PO; P/S 0.4), olive oil (HF-OO; P/S 1.1) or safflower oil (HF-SO; P/S 7.8) ...
ORGANISM(S): Mus musculus 
2012-06-17 | E-GEOD-18586 | biostudies-arrayexpress
TranscriptomicsDietary heme induces instantaneous oxidative stress but delayed cytotoxicity and compensatory hyperproliferation in mouse colon
Red meat consumption is associated with an increased colon cancer risk. Heme, present in red meat, injures the colon surface epithelium by luminal cytotoxicity and reactive oxygen species. This surface injury is compensated by hyperproliferation and hyperplasia of crypt cells, which was induced by a...
ORGANISM(S): Mus musculus 
2013-05-03 | E-GEOD-40671 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of rat colon from animals fed cellulose vs FOS diets and infected with Salmonella
To increase our knowledge of the effects of Fructo oligosaccharides (FOS) on Salmonella infection in fats, a controlle rat infection study was performed. Two groups of 12 rats were adapted for 14 days to a cellulose diet and one group of 12 rats to a FOS diet. One cellulose-fed group and the FOS-fed...
ORGANISM(S): Rattus norvegicus 
2008-06-15 | E-GEOD-7472 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of rat colon mucosa at different time points following Salmonella infection
Salmonella enteritidis is suggested to translocate in the small intestine. Previously we identified that prebiotics, fermented in the colon, increased Salmonella translocation in rats, suggesting involvement of the colon in translocation. Effects of Salmonella on colonic gene expression in vivo are ...
ORGANISM(S): Rattus norvegicus 
2008-06-15 | E-GEOD-7496 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of rat ileum mucosa and Peyers patches in the small intestine at different time points following Salmonella infection
Time dependent effect of Salmonella infection on host gene expression in vivo in the ileum mucosa and Peyer’s patches.
ORGANISM(S): Rattus norvegicus 
2007-04-02 | E-MEXP-636 | biostudies-arrayexpress
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