ABSTRACT: Microarray analysis on fruit fly (Drosophila melanogaster) larvae fed with either a semi-purified diet only or a semi-purified diet supplemented with palm fruit juice (PFJ)
Project description:Microarray analysis on fruit fly (Drosophila melanogaster) larvae and fat bodies of fruit fly larvae fed with either a semi-purified diet only or a semi-purified diet supplemented with palm fruit juice (PFJ)
Project description:PFJ (4 ml for a final concentration of 19,000 mg gallic acid equivalent (GAE) per kg diet or 0.86 mg GAE per kcal diet) was supplemented to larvae of fruit flies (Drosophila melanogaster) given a semi-purified diet to observe for possible effects on energy metabolism and lifespan. Larvae were used five days since the egg stage for gene expression studies. Results from the microarray data analysis carried out show that fruit fly larvae given PFJ had up-regulated transport and metabolic processes, while development and morphogenesis processes were down-regulated.
Project description:Microarray analysis on fat bodies of fruit fly (Drosophila melanogaster) larvae fed with either a semi-purified diet only or a semi-purified diet supplemented with palm fruit juice (PFJ)
Project description:PFJ (4 ml for a final concentration of 19,000 mg gallic acid equivalent (GAE) per kg diet or 0.86 mg GAE per kcal diet) was supplemented to larvae of fruit flies (Drosophila melanogaster) given a semi-purified diet to observe for possible effects on energy metabolism and lifespan. Fat bodies extracted from these larvae were used five days since the egg stage for gene expression studies. Results from the microarray data analysis carried out show that fruit fly larva fat bodies given PFJ had up-regulated heat shock protein genes, while cell cycle and growth genes were down-regulated.
Project description:Microarray analysis on livers of young (three weeks old) Nile rats (Arvicanthis niloticus) fed with either a high carbohydrate diet only (percentage energy from carbohydrate:fat:protein = 70:10:20, 16.7 kJ/g) or a high carbohydrate diet supplemented with palm fruit juice (PFJ) (415 ml of 13000 ppm gallic acid equivalent (GAE) for a final concentration of 5.4 g GAE per kg diet or 2.7 g per 2000 kcal) PFJ (415 ml of 13000 ppm gallic acid equivalent (GAE) for a final concentration of 5.4 g GAE per kg diet or 2.7 g per 2000 kcal) was supplemented to young Nile rats (Arvicanthis niloticus) given a high carbohydrate diet (percentage energy from carbohydrate:fat:protein = 70:10:20, 16.7 kJ/g) to observe for possible anti-diabetic effects. Livers were harvested four weeks after the feeding regimen for gene expression studies. Results from the microarray data analysis carried out show that rats given PFJ had down-regulated insulin signalling, consistent with anti-diabetic effects observed in vivo.
Project description:Microarray analysis on livers of young (three weeks old) Nile rats (Arvicanthis niloticus) fed with either a high carbohydrate diet only (percentage energy from carbohydrate:fat:protein = 70:10:20, 16.7 kJ/g) or a high carbohydrate diet supplemented with palm fruit juice (PFJ) (415 ml of 13000 ppm gallic acid equivalent (GAE) for a final concentration of 5.4 g GAE per kg diet or 2.7 g per 2000 kcal) PFJ (415 ml of 13000 ppm gallic acid equivalent (GAE) for a final concentration of 5.4 g GAE per kg diet or 2.7 g per 2000 kcal) was supplemented to young Nile rats (Arvicanthis niloticus) given a high carbohydrate diet (percentage energy from carbohydrate:fat:protein = 70:10:20, 16.7 kJ/g) to observe for possible anti-diabetic effects. Livers were harvested four weeks after the feeding regimen for gene expression studies. Results from the microarray data analysis carried out show that rats given PFJ had down-regulated insulin signalling, consistent with anti-diabetic effects observed in vivo. Total RNA obtained from livers of young Nile rats (Arvicanthis niloticus) given PFJ in a high carbohydrate diet (four weeks after the feeding regimen) were compared to controls (three replicates in the treatment group versus four replicates in the control group)
Project description:This SuperSeries is composed of the following subset Series: GSE30905: Microarray analysis on livers, spleens and hearts of mice given distilled water fed with either a normal diet or an atherogenic diet GSE30907: Microarray analysis on livers, spleens and hearts of mice fed an atherogenic diet and supplemented with either oil palm phenolics (OPP) or distilled water Refer to individual Series
Project description:De novo lipogenesis (DNL) has been implicated in the development and progression of hepatic liver steatosis. Hepatic DNL is strongly influenced by dietary macronutrient composition with diets high in carbohydrate increasing DNL and diets high in fat decreasing DNL. The enzymes in the core DNL pathway have been well characterised however less is known about proteins that play accessory or regulatory roles in DNL. In the current study, we associate measured rates of hepatic DNL and liver fat content with abundance of liver proteins from liquid chromatography mass spectrometry in mice to identify known and uncharacterised proteins that may have a role in DNL. Male C57BL/6J mice were fed either a standard chow diet a semi-purified high starch diet or a high fat diet. Both semi-purified diets resulted in increased body weight, fat mass and liver triglyceride content compared to chow-fed mice while hepatic DNL was increased in the high starch fed mice and decreased in the high fat fed mice. Proteomic analysis was carried out on the livers of these mice and proteins were identified that associated with either the rate of DNL or triglyceride content in the liver. There was no overlap between DNL and triglyceride associated proteins. We identify novel proteins associated with DNL that are involved in taurine metabolism, which suggests a link between these pathways. Further analysis identified proteins that are differentially regulated when comparing a non-purified chow diet to either of the semi-purified diets to provide a set of proteins that are regulated by the degree of dietary complexity alone. Finally, we compared the liver proteome between 4 week-fed and 30-week diet-fed mice and found remarkable similarity suggesting that the majority of diet-regulated proteins change early in response to differing dietary components.
Project description:Analysis of the effect of using a fruit and vegetable juice concentrate to reduce systemic inflammation in obesity. The hypothesis tested whether the presence of polyphenols in the fruit and vegetable juice concentrate could reduce the expression of systemic inflammatory genes in the blood of Obese patients with high levels of plasma CRP (≥3.0). Results provide evidence that systemic inflammatory genes/ and or pathways may be modulated by the fruit and vegetable juice concentrate.
