Rattus norvegicus
Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: E-GEOD-8700
PROVIDER: PRJNA101929 | ENA |
REPOSITORIES: ENA
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2007-08-07 | GSE8700 | GEO
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Project description:According to different feeding and treatment conditions, 36 C57BL/6JC rats were randomly divided into normal diet group (WC group), high fat diet group (WF group) and high fat diet + silibinin group (WS group). TMT combined with LC-MS/MS were used to study the expression of WAT in epididymis of HFD-induced obese rats and normal diet rats. Gene Ontology, InterPro and KEGG databases were used to analyze the cellular processes, the biological processes, the corresponding molecular functions and the network molecular mechanisms involved
2020-01-13 | PXD016635 | Pride
Project description:Expression data from Control diet, Western diet and Western diet + DHA fed rats.
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Project description:Background: Post-menopausal obesity is an established risk factor for breast cancer. Consumption of diets high in fat is known to be highly correlated with obesity. In this, we sought to evaluate the interaction(s) between high fat diet, weight gain and mammary carcinogenesis using an obese-resistant and obese-prone rat model with direct correlates to human disease. Methods: Female obese-prone (OP) and obese-resistant (OR) weanling rats were placed on either a low fat (10% kcal) or a high fat (39% kcal) n-6 polyunsaturated (PUFA) safflower diet for 30 days. At post natal day (PND) 50, global gene expression profiling was performed on microdissected mammary epithlelium from one cohort of rats and another cohort of rats were given a single oral gavage of either 7,12-dimethylbenz[a]anthracene (DMBA at 14 mg/kg) or vehicle. Rats were then maintained on the diets and body weights, food consumption and development of mammary lesions were monitored weekly. Results: The DMBA-treated OR rats on the 39% safflower diet had significantly greater incidence of ductal carcinoma-in-situ (DCIS) lesions and significantly greater DCIS multiplicity than DMBA-treated OR rats on the 10% safflower diet. These differences were not seen in the OP strain. Gene expression analysis of mammary ductal epithelium from OR rats on the high fat diet showed significant upregulation of proliferation-related genes compared to those consuming the low fat safflower diet. Again, these differences were not seen in the OP strain. Conclusion: Our findings indicate that consumption of high fat safflower diet enhances mammary carcinogenesis in an OR rat strain through increased proliferation of mammary epithelium at the time of exposure, but not in the OP rat strain. Thus, the diet-induced increase in sensitivity was strain-specific and independent of weight gain or obesity level. Female obese-prone (OP) and obese-resistant (OR) weanling rats were placed on either a low fat (10% kcal) or a high fat (39% kcal) n-6 polyunsaturated (PUFA) safflower diet for 30 days. At post natal day (PND) 50, global gene expression profiling was performed on microdissected mammary epithlelium from one cohort of rats and another cohort of rats were given a single oral gavage of either 7,12-dimethylbenz[a]anthracene (DMBA at 14 mg/kg) or vehicle. Rats were then maintained on the diets and body weights, food consumption and development of mammary lesions were monitored weekly.
2010-09-25 | E-GEOD-21150 | biostudies-arrayexpress
Project description:High fat diet effects on mammary epithelium of OP and OR rats
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Project description:Transcriptomic responses of the liver and adipose tissues to altered carbohydrate-fat ratio in diet: An isoenergetic study in young rats
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Project description:Expression data from liver of WNIN/Ob lean and obese rats
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