Effect of Collagen Peptide-containing Diet on Hepatic Gene Expressions in Mouse
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE75171 | GEO | 2017/01/17
SECONDARY ACCESSION(S): PRJNA302672
REPOSITORIES: GEO
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Project description:<p><strong>BACKGROUND:</strong> Protein undernutrition is prevalent mainly among elderly people, and it could develop diseases such as sarcopenia. Urinary metabolites may become biomarkers reflecting protein undernutrition, but this has been insufficiently investigated.</p><p><strong>OBJECTIVE:</strong> The purpose of this study was to identify novel urinary metabolites as biomarker candidates responsive to protein undernutrition.</p><p><strong>METHODS:</strong> Adult male Wistar rats were fed an AIN-93 M diet [14% casein, control (CT) diet] or an AIN-93 M-based isocaloric diet [5% casein, low protein (LP) diet] for 4 weeks. 1H nuclear magnetic resonance metabolomic analysis was performed on urine samples weekly and on plasma and liver samples at week 4 to identify metabolites that respond to protein undernutrition. Liver samples were also subjected to mRNA microarray and quantitative PCR analyses at week 4 to investigate alterations of the gene expressions responsive to protein undernutrition.</p><p><strong>RESULTS:</strong> Urinary taurine levels were significantly lower in the LP group than in the CT group (79.7% lower) at week 1, and remained constant until week 4. Hepatic taurine level and gene expression level of cysteine dioxygenase type 1, the rate-limiting enzyme for taurine biosynthesis, were also significantly lower in the LP group than in the CT group (81.1% and 32.5% lower, respectively). Urinary trimethylamine N-oxide (TMAO) levels were significantly higher in the LP group than in the CT group (49.7% higher) at week 2, and remained constant until week 4. Hepatic TMAO level was also higher in the LP group than in the CT group (81.2% higher). Hepatic gene expression levels of flavin-containing monooxygenase 1 and 5, the enzymes for TMAO biosynthesis, were also significantly higher in the LP group than in the CT group (61.6% and 311.8% higher, respectively).</p><p><strong>CONCLUSIONS:</strong> Urinary taurine and TMAO levels substantially respond to LP diet ingestion, and may act as non-invasive biomarker candidates to detect protein undernutrition.</p>
2021-05-27 | MTBLS1452 | MetaboLights
Project description:Dietary collagen hydrolysate has been conjectured to improve skin barrier function. To investigate the effect of long-term collagen hydrolysate administration on the skin, we evaluated stratum corneum water content and skin elasticity in intrinsic aged mice. Female 9-week-old hairless mice were fed a control diet, or a collagen hydrolysate-containing diet, for 12 weeks. The stratum corneum water content and skin elasticity were sequentially decreased by chronological aging in control mice. Intake of collagen hydrolysate significantly suppressed such changes. Moreover, we comprehensively analyzed gene expression in the skin of mouse, which had been administered collagen hydrolysate, using DNA microarray. Twelve weeks after start of collagen intake, no significant differences appeared in gene expression profile compared to that of control group. However, 12 weeks after administration, 135 genes were up-regulated and 448 genes were down-regulated in collagen group compared to control group. It is indicate that gene changes preceded changes of barrier function and elasticity. We focused on several genes correlated with functional changes in the skin. Gene Ontology terms, especially related to epidermal cell development, were signi?cantly enriched in up-regulated genes. These skin function-related genes had properties that facilitate epidermal production and differentiation and suppress dermal degradation. Thus, dietary collagen hydrolysate induced positive gene changes. In conclusion, our results suggest that alteration of gene expression at early stages after collagen administration affect skin barrier function and mechanical properties. Long-term oral intake of collagen hydrolysate improves skin dysfunction by regulating genes related to production and maintenance of the skin tissue. Nine-week-old female Hos:HR-1 hairless mice (Japan SLC Inc., Shizuoka, Japan) were used in this study. All mice were housed in plastic cages (4 mice/cage) in a temperature and humidity controlled room (24 ± 1°C and 50 ± 10% humidity) under a 12 hour light-dark cycle. Mice were given an AIN-93G (Oriental Yeast Co., Ltd., Tokyo, Japan) diet and water. The present study was approved by the Animal Committee of Meiji Seika Kaisha Ltd., Food & Health R&D Laboratories, with the animals receiving care under the Guiding Principles for the Care and Use of Laboratory Animals of this committee. All surgery was performed under isoflurane anesthesia, and all efforts were made to minimize suffering. Sixteen female mice were randomly divided into two groups (n = 8 /group) according to their body weight, stratum corneum water content, and skin elasticity. During the experimental period for 12 weeks, the control group was fed a control diet (AIN-93G) and the collagen group was fed a collagen diet consisting of a mixture of 2.0 g of collagen hydrolysate and 100 g of the control diet. Fish scale collagen hydrolysate was purchased from Nitta Gelatin Inc. (Osaka, Japan). This amount of collagen hydrolysate is approximately equivalent to oral ingestion of 2.0 g collagen hydrolysate/kg body weight/day.
2015-06-12 | E-GEOD-62649 | biostudies-arrayexpress
Project description:Effects of soy isoflavones, genistein and daidzein, on the hepatic gene expression profile and indices for lipid metabolism were compared in rats. The GeneChip data was normalized and summarized by using SuperNORM data service (Skylight Biotech Inc.). Significance of expressional change among groups was tested by 2-way ANOVA on the normalized CEL data, which was deposited in a tab-separated ASCII text format. Principal components were identified on the summarized gene data. Three groups of rats were fed with an experimental diet containing 2 g/kg of either genistein or daidzein, or a control diet free of isoflavone for 14 days. The basal composition of the experimental diet was (in g/kg): casein, 200; palm oil, 100; corn starch, 150; cellulose, 20; mineral mixture (AIN-93G), 35; vitamin mixture (AIN-93), 10; L-cystine, 3.0; choline bitartrate, 2.0 and sucrose to 1 kg.
2012-10-10 | E-GEOD-41420 | biostudies-arrayexpress
Project description:Ingestion of a diet with a restricted Methionine (MR) content results in robust activation of a set of browning genes in IWAT (inguinal white adipose tissue). So far, data were obtained using a mix of elemental amino acids as the dietary protein source, which was replaced in this experiment with casein. To reduce methionine content, casein was oxidized and methionine was added back to a concentration similar to the diets using elemental amino acids as protein source. Results show that mice reduce body weight and adiposity on MR containing oxidized casein similar to MR containing elemental amino acids. Similarly, energy expenditure, as well as food and water intake were increased. The RNAseq experiment was conducted to compare the effect of MR using these two protein sources on the IWAT transcriptome.
2021-06-09 | GSE162917 | GEO
Project description:Soybean and fish contains various active components that were reported to prevent cardiovasucular diseases. Epidemiological studies indicated that Asian eating patterns, consisting of daily seafood and/or soy consumption, confer protection against cardiovascular diseases. In this context, we expected that simultaneous intake of soybean and fish may be greatly beneficial in a manner different from the ingestion of the individual food. To understand the detailed mechanism for modulating the lipid metabolism by co-ingestion of a soy food (tofu) and fish oil, we investigated the global changes in hepatic mRNA expression in rats by using a microarray analysis. Generally, ingestion of tofu contributed to prevent the mRNA expressions involved in hepatic lipogenesis, whereas fish oil facilitated the mRNA expressions related to the degradation of hepatic fatty acids. In terms of mRNA expression, the interaction of two dietary factors was limited. The expression data was normalized and summarized by using SuperNORM data service (Skylight Biotech Inc.). Significance of expressional change among groups was tested by 2-way ANOVA on the normalized CEL data, which was deposited in a tab-separated ASCII text format. Principal components were identified on the summarized gene data. Rats were divided into four groups each with similar average body weights and assigned experimental diets for 21 days as follows: casein and soybean oil diet (CS); casein and fish oil diet (CF); tofu and soybean oil diet (TS); tofu and fish oil diet (TF). Total protein and fat content of each diet was 200 and 150 g/kg, respectively. Soybean oil diets (CS and TS) contain 150 g/kg diet of soybean-derived fat (i.e. soybean oil and freeze-dried tofu), and 50 g/kg of fish oil was replaced with the same amount of soybean-derived fat for fish oil diets (CF and TF). Animals were allowed free access to food and water.
2015-09-01 | E-GEOD-66371 | biostudies-arrayexpress
Project description:We used microarray to determine the differences in hepatic gene expression for diet-induced obese Sprague-Dawley rats consuming different dietary proteins. Proteins of interest included skim milk powder (dairy), casein, and the branched-chain amino acid, leucine. The primary aims of this study were: (i) to compare the effects of diets with protein derived from casein, casein supplemented with leucine, and complete dairy on body composition and insulin sensitivity; and (ii) to determine if there is a synergistic effect of dietary Ca and protein source on body composition and insulin sensitivity. Secondarily, we used microarray analysis to examine the effect of casein, leucine, or complete dairy containing diets on the expression of hepatic genes related to lipid and glucose metabolism. Diet induced obese rats consumed ad libitum, a high fat, high sucrose diet for 8 weeks (n=4). All diets had an energy density of 4.6 kcal/gram and provided 10% of total energy from protein [casein, complete dairy (skim milk powder), or leucine-supplemented casein (7.1% from casein plus 2.9% from leucine)]. The casein treatment was the control diet.
2010-08-12 | E-GEOD-23559 | biostudies-arrayexpress
Project description:We used microarray to determine the differences in hepatic gene expression for diet-induced obese Sprague-Dawley rats consuming different dietary proteins. Proteins of interest included skim milk powder (dairy), casein, and the branched-chain amino acid, leucine. The primary aims of this study were: (i) to compare the effects of diets with protein derived from casein, casein supplemented with leucine, and complete dairy on body composition and insulin sensitivity; and (ii) to determine if there is a synergistic effect of dietary Ca and protein source on body composition and insulin sensitivity. Secondarily, we used microarray analysis to examine the effect of casein, leucine, or complete dairy containing diets on the expression of gastrocnemius muscle genes related to lipid and glucose metabolism. Diet induced obese rats consumed ad libitum, a high fat, high sucrose diet for 8 weeks (n=4). All diets had an energy density of 4.6 kcal/gram and provided 10% of total energy from protein [casein, complete dairy (skim milk powder), or leucine-supplemented casein (7.1% from casein plus 2.9% from leucine)]. The casein treatment was the control diet.
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Project description:The glucosinolate-derived phenethyl isothiocyanate (PEITC) has been widely reported to reduce the risk of prostate cancer by modulating multiple biologically relevant activities. Emerging evidence suggests that PEITC may exert its anti-cancer effects through epigenetic mechanisms including alterations of DNA methylation. The purpose of this study was to examine the effects of PEITC on prostate carcinogenesis in a murine prostate cancer model (TRAMP). 8 weeks old TRAMP males were fed AIN-93M control diet or diet containing 0.05% PEITC for 8 or16 weeks. We observed reduced tumor incidence in PEITC group (0/5) at 24 weeks of age as compared to control diet group (6/7). We also performed Next-generation sequencing (RNA-seq and SureSelect Methyl-seq) with non-tumor and tumor prostate tissue collected from the above-mentioned TRAMP groups and time matching wildtype (not TRAMP) control diet groups at the same time points. Our bioinformatic analyses reveal that several carcinogenesis pathways as well as pathways of inflammation and cell proliferation were activated in TRAMP group as compared to wildtype group. Surprisingly, these pathways were inhibited by PEITC diet administration. We also identified a number of genes with inverse regulation relationship between their RNA expression and their CpG methylation during prostate carcinogenesis and cancer prevention by PEITC in TRAMP mice. Our study demonstrated that PEITC administration can suppress prostate cancer by epigenetic regulation of key genes. [This GEO/dataset is the bisulfite methyl-seq part of the study.]
2023-01-01 | GSE140311 | GEO
Project description:The glucosinolate-derived phenethyl isothiocyanate (PEITC) has been widely reported to reduce the risk of prostate cancer by modulating multiple biologically relevant activities. Emerging evidence suggests that PEITC may exert its anti-cancer effects through epigenetic mechanisms including alterations of DNA methylation. The purpose of this study was to examine the effects of PEITC on prostate carcinogenesis in a murine prostate cancer model (TRAMP). 8 weeks old TRAMP males were fed AIN-93M control diet or diet containing 0.05% PEITC for 8 or16 weeks. We observed reduced tumor incidence in PEITC group (0/5) at 24 weeks of age as compared to control diet group (6/7). We also performed Next-generation sequencing (RNA-seq and SureSelect Methyl-seq) with non-tumor and tumor prostate tissue collected from the above-mentioned TRAMP groups and time matching wildtype (not TRAMP) control diet groups at the same time points. Our bioinformatic analyses reveal that several carcinogenesis pathways as well as pathways of inflammation and cell proliferation were activated in TRAMP group as compared to wildtype group. Surprisingly, these pathways were inhibited by PEITC diet administration. We also identified a number of genes with inverse regulation relationship between their RNA expression and their CpG methylation during prostate carcinogenesis and cancer prevention by PEITC in TRAMP mice. Our study demonstrated that PEITC administration can suppress prostate cancer by epigenetic regulation of key genes. [This GEO/dataset is the RNA-seq part of the study.]
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Project description:Ingestion of a diet with a restricted Methionine (MR) content results in robust activation of hepatic stress pathways regulated by PERK, ATF4, and Nfe2l2. In addition, genes regulating hepatic lipogenesis are downregulated. So far, data were obtained using a mix of elemental amino acids as the dietary protein source, which was replaced in this experiment with casein. To reduce methionine content, casein was oxidized and methionine was added back to a concentration similar to the diets using elemental amino acids as protein source. Results show that mice reduce body weight and adiposity on MR containing oxidized casein similar to MR containing elemental amino acids. Similarly, energy expenditure, as well as food and water intake were increased. The RNAseq experiment was conducted to compare the effect of MR using these two protein sources on the hepatic transcriptome.
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