Project description:DNA microarray analysis was employed to analyze hepatic gene expression in mice that were protected against HF-induced obesity and liver steatosis (ie HF diets supplemented with lingonberries, blackcurrants or bilberries) and compare to mice who were not protected (HF control) or even experienced increased obesity and fatty liver (HF diet with açai). The study was done to increase understanding of underlying mechanisms of the observed effects.
Project description:Purpose: The goals of this study is to examine if feeding NOD mice with diets supplemented with SCFAs causes altered gene expression in Splenic B cells Methods: B cell RNA profiles from NOD.LT mice fed fed different diets, a non-purified diet (n=4), a high amylose diet (n=4), a high amylose diet supplemented with acetate (n=4) or a high amylose diet supplemented with butyrate (n=4) were generated by deep sequencing, in triplicate, by Illumina 100 - base HT mode the sequence reads that passed quality filters were summarized into gene models using featureCounts from the Rsubread package, and differential gene expression for the various contrasts between dietary treatments was identified using the EdgeR analysis in R Results: Using an optimized data analysis workflow, we mapped about 20 million sequence reads per sample to the mouse genome (build GRCm38) and identified 16,257 transcripts present in B cells from NOD.LT mice fed different diet. Conclusions: Our study investigates how differing diets alter the expression of important genes in B cells, allowing us to further understand the role diets can play in modulating T1D development.
Project description:Hepatic gene expression analysis in mice fed control diet or diets supplemented with 1% Fraction 1 (haxane) or Fraction 2 (methanol) of Boswellia Serrata.
Project description:The goal of this subproject is to identify microRNAs (miRNAs) expressed in visceral (VIS) adipose tissue (gonadal fat from male C57BL/6 mice) and regulated by eicosapentaenoic acid (EPA). This will provide insight into microRNAs regulated by EPA and their potential role in obesity-associated inflammation. We performed small RNA-sequencing of white (VIS) adipose tissue from high-fat diet (45% kcal from fat) supplemented with EPA (45% Kcal from fat, 6.75% EPA). Using the Gunaratne Next-Generation pipeline (published in Creighton et al. 2009), miRNA expression profiles were identified. Counts of each unique read were normalized to total usable reads, and had 40 counts added. We mapped about 13.8 million sequence reads per sample to the Mus musculus genome (build mm 10). We are specifically interested in those miRNAs expressed in VIS fat from EPA-fed mice compared to HF-fed mice.
Project description:Animal nutrition considerably affects milk composition that influences its nutritional quality. Milk component synthesis and secretion by the mammary gland involve the expression of a large number of genes whose nutritional regulation remains poorly defined. In this study, 16 lactating goats received 4 experimental diets differing in either forage to concentrate ratio (high forage, HF, or low forage, LF) supplemented, or not, with lipids (whole rapeseeds, RS, or sunflower oil, SO) in a 4 x 4 Latin Square design. To investigate the pathways regulated by nutrition, we examined the effect of these diets on the expression of approximately 8400 genes in caprine mammary gland using a bovine oligonucleotide microarray.