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gene-diet interaction

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https://www.readbyqxmd.com/read/27909428/rapid-fermentable-substance-modulates-interactions-between-ruminal-commensals-and-toll-like-receptors-in-promotion-of-immune-tolerance-of-goat-rumen
#1
Hong Shen, Zhongyan Lu, Zhan Chen, Yufeng Wu, Zanming Shen
Whether dietary non-fiber carbohydrate (NFC), a rapid fermentable substance, affects immune homeostasis of rumen through the modulation of interactions of ruminal microbiota and epithelial toll-like receptors (TLRs) remains unclear. A combination of 16S rRNA amplicon sequencing and quantitative PCRs was applied to study the synergetic responses of ruminal microbiota and epithelial TLRs to the dietary NFC switch from 15 to 31% in the goat model. The results showed that the 31% NFC diet caused the radical increases on the richness and diversity of rumen microbiota...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27906582/fiat-deletion-increases-bone-mass-but-does-not-prevent-high-fat-diet-induced-metabolic-complications
#2
Bahareh Hekmatnejad, Vionnie W C Yu, William Addison, Vice Mandic, Martin Pellicelli, Alice Arabian, René St-Arnaud
FIAT (Factor Inhibiting ATF4-mediated Transcription) interacts with ATF4 to repress its transcriptional activity. We performed a phenotypic analysis of Fiat-deficient male mice (Fiat(-/Y)) at 8 and 16 weeks of age. Fiat(-/Y) mice appeared normal at birth and weight gain was comparable between genotypes. μCT analysis of proximal femur demonstrated 46% and 13% age-dependent increases in trabecular bone volume and thickness, respectively, in Fiat(-/Y) mice. Cortical bone measurements at the femoral midshaft revealed a significant increase in cortical thickness in older Fiat(-/Y) mice...
December 1, 2016: Endocrinology
https://www.readbyqxmd.com/read/27906527/behavioral-epigenetics
#3
David S Moore
Why do we grow up to have the traits we do? Most 20th century scientists answered this question by referring only to our genes and our environments. But recent discoveries in the emerging field of behavioral epigenetics have revealed factors at the interface between genes and environments that also play crucial roles in development. These factors affect how genes work; scientists now know that what matters as much as which genes you have (and what environments you encounter) is how your genes are affected by their contexts...
December 1, 2016: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/27900259/dietary-fat-and-gut-microbiota-interactions-determine-diet-induced-obesity-in-mice
#4
Raphaela Kübeck, Catalina Bonet-Ripoll, Christina Hoffmann, Alesia Walker, Veronika Maria Müller, Valentina Luise Schüppel, Ilias Lagkouvardos, Birgit Scholz, Karl-Heinz Engel, Hannelore Daniel, Philippe Schmitt-Kopplin, Dirk Haller, Thomas Clavel, Martin Klingenspor
OBJECTIVE: Gut microbiota may promote positive energy balance; however, germfree mice can be either resistant or susceptible to diet-induced obesity (DIO) depending on the type of dietary intervention. We here sought to identify the dietary constituents that determine the susceptibility to body fat accretion in germfree (GF) mice. METHODS: GF and specific pathogen free (SPF) male C57BL/6N mice were fed high-fat diets either based on lard or palm oil for 4 wks. Mice were metabolically characterized at the end of the feeding trial...
December 2016: Molecular Metabolism
https://www.readbyqxmd.com/read/27898929/does-heat-stress-alter-the-pig-s-response-to-dietary-fat
#5
T A Kellner, L H Baumgard, K J Prusa, N K Gabler, J F Patience
Heat stress (HS) results in major losses to the pork industry via reduced growth performance and, possibly, carcass fat quality. The experimental objective was to measure the effects of HS on the pig's response to dietary fat in terms of lipid digestion, metabolism, and deposition over a 35-d finishing period. A total of 96 PIC 337 × C22/C29 (PIC, Inc., Hendersonville, TN) barrows (initial BW of 100.4 ± 1.2 kg) were randomly allotted to 1 of 9 treatments arranged as a 3 × 3 factorial: thermoneutral (TN; constant 24°C; ad libitum access to feed), pair-fed thermoneutral (PFTN; constant 24°C; limit fed based on previous HS daily feed intake), or HS (cyclical 28°C nighttime, 33°C from d 0 to 7, 33...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898891/behavior-and-inflammation-of-the-rumen-and-cecum-in-holstein-bulls-fed-high-concentrate-diets-with-different-concentrate-presentation-forms-with-or-without-straw-supplementation
#6
M Devant, G B Penner, S Marti, B Quintana, F Fábregas, A Bach, A Arís
Twenty-four individually housed Holstein bulls (395 ± 7.3 kg BW and 252 ± 3.1 d age) were exposed to a 2 × 2 factorial design (meal vs. pellets; with vs. without straw) to evaluate the effect of concentrate form and provision of straw in finishing diets on behavior and expression of rumen and cecum epithelium genes related to inflammation and behavior. Concentrate and straw consumption were recorded monthly and behavior (self-grooming, social, oral nonnutritive, tongue rolling, eating, drinking, ruminating, and lying) was recorded every two weeks...
September 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27895803/time-course-microarray-analysis-for-identifying-candidate-genes-involved-in-obesity-associated-pathological-changes-in-the-mouse-colon
#7
Yun Jung Bae, Sung-Eun Kim, Seong Yeon Hong, Taesun Park, Sang Gyu Lee, Myung-Sook Choi, Mi-Kyung Sung
BACKGROUND: Obesity is known to increase the risk of colorectal cancer. However, mechanisms underlying the pathogenesis of obesity-induced colorectal cancer are not completely understood. The purposes of this study were to identify differentially expressed genes in the colon of mice with diet-induced obesity and to select candidate genes as early markers of obesity-associated abnormal cell growth in the colon. METHODS: C57BL/6N mice were fed normal diet (11% fat energy) or high-fat diet (40% fat energy) and were euthanized at different time points...
2016: Genes & Nutrition
https://www.readbyqxmd.com/read/27893736/diet-induced-nutritional-stress-and-pathogen-interference-in-wolbachia-infected-aedes-aegypti
#8
Eric Pearce Caragata, Fernanda Oliveira Rezende, Taynãna César Simões, Luciano Andrade Moreira
The pathogen interference phenotype greatly restricts infection with dengue virus (DENV) and other pathogens in Wolbachia-infected Aedes aegypti, and is a vital component of Wolbachia-based mosquito control. Critically, the phenotype's causal mechanism is complex and poorly understood, with recent evidence suggesting that the cause may be species specific. To better understand this important phenotype, we investigated the role of diet-induced nutritional stress on interference against DENV and the avian malarial parasite Plasmodium gallinaceum in Wolbachia-infected Ae...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27877172/regulated-inflammation-and-lipid-metabolism-in-colon-mrna-expressions-of-obese-germfree-mice-responding-to-enterobacter-cloacae-b29-combined-with-the-high-fat-diet
#9
Huiying Yan, Na Fei, Guojun Wu, Chenhong Zhang, Liping Zhao, Menghui Zhang
Increased evidences have demonstrated that gut microbiota targeted diet intervention can alleviate obesity and related metabolic disorders. The underlying mechanism of interactions among diet, microbiota, and host still remains unclear. Enterobacter cloacae B29, an endotoxin-producing strain dominated in the gut of a morbidly obese volunteer (weight 174.8 kg, BMI 58.8 kg m(-2)) was isolated and transplanted to germfree mice (inoculated 10(10) cells of B29 per day for 1 week). Using deep mRNA sequencing technology, we compared different gene expression profiles in the colon samples of the germfree mice treated with/without B29 and/or high fat diet (HFD) for 16 weeks and identified 279 differential expressed genes in total, including up-regulated genes Apoa4 (fold change, 2...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27875740/conditional-knockout-of-tfpi-1-in-vsmcs-of-mice-accelerates-atherosclerosis-by-enhancing-amot-yap-pathway
#10
Jiajun Xiao, Kaiyue Jin, Jiping Wang, Jing Ma, Jin Zhang, Nan Jiang, Huijun Wang, Xinping Luo, Jian Fei, Zhugang Wang, Xiao Yang, Duan Ma
BACKGROUND: Tissue factor pathway inhibitor-1 (TFPI-1) has multiple functions and its precise role and molecular mechanism during the development of atherosclerosis are not clear. OBJECTIVES: To determine the effect and molecular mechanism of TFPI-1 deficiency in vascular smooth muscle cells (VSMCs) in atherosclerosis in the apolipoprotein E knockout (ApoE(-/-)) mouse. METHODS AND RESULTS: A mouse model with a conditional knockout of TFPI-1 in VSMCs in an atherosclerosis-prone background (ApoE(-/-)) was generated...
November 12, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27873039/erratum-to-improvement-of-gamete-quality-by-stimulating-and-feeding-the-endogenous-antioxidant-system-mechanisms-clinical-results-insights-on-gene-environment-interactions-and-the-role-of-diet
#11
Maurizio Dattilo, Giuseppe D'Amato, Ettore Caroppo, Yves Ménézo
No abstract text is available yet for this article.
November 21, 2016: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/27866830/a-high-fat-diet-differentially-regulates-glutathione-phenotypes-in-the-obesity-prone-mouse-strains-dba-2j-c57bl-6j-and-akr-j
#12
Katie M Norris, Whitney Okie, Woo Kyun Kim, Roshan Adhikari, Sarah Yoo, Stephanie King, Robert Pazdro
The ubiquitous tripeptide glutathione (GSH) is a critical component of the endogenous antioxidant defense system. Tissue GSH concentrations and redox status (GSH/GSSG) are genetically controlled, but it is unclear whether interactions between genetic background and diet affect GSH homeostasis. The current study tested the hypothesis that a high-fat diet regulates GSH homeostasis in a manner dependent on genetic background. At 4 months of age, female mice representing 3 obesity-prone inbred strains-C57BL/6J (B6), DBA/2J (D2), and AKR/J (AKR)-were randomly assigned to consume a control (10% energy from fat) or high-fat (62% energy from fat) diet for 10 weeks (n=5/diet per strain)...
October 17, 2016: Nutrition Research
https://www.readbyqxmd.com/read/27866413/disbalance-of-calcium-regulation-related-genes-in-heart-of-broilers-induced-by-selenium-deficiency
#13
Ziwei Zhang, Man Liu, Zhenqiong Guan, Jie Yang, Zhonghua Liu, Shiwen Xu
Dietary selenium (Se) deficiency may influence the calcium (Ca) homeostasis in broilers. Our objective was to investigate the effects of Se deficiency on Ca regulation related genes' change in heart of broilers. In the present study, 1-day-old broilers were fed either a commercial diet (as control group) with 0.15 mg/kg Se or a Se-deficient diet (as L group) with 0.033 mg/kg Se for 35 days. We examined the mRNA expression levels of 15 Ca regulation related genes (ITPR 1, ITPR 2, ITPR3, RyR2, RyR3, SERCA1s, SLC8A1, PMCA1, CACNA1S, TRPC1, TRPC3, STIM1, ORAI1, CaLM and CRT) in the heart of broilers...
November 21, 2016: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/27865349/whey-protein-increases-muscle-weight-gain-through-inhibition-of-oxidative-effects-induced-by-resistance-exercise-in-rats
#14
Kely R Teixeira, Marcelo E Silva, Wanderson G de Lima, Maria L Pedrosa, Fabiano K Haraguchi
Whey protein (WP) is known for its nutritional value and antioxidant properties. The aim of this study was to evaluate whether the antioxidant properties of WP could contribute to muscle weight gain in response to resistance exercise (RE). We hypothesized that WP ingestion could increase muscle weight gain in rats subjected to an RE program, through inhibition of oxidative effects induced by high-intensity RE. Thirty-two male Fischer rats were randomly assigned to control sedentary, control exercised, WP sedentary, and WP exercised groups (n=8/group)...
October 2016: Nutrition Research
https://www.readbyqxmd.com/read/27860207/mediterranean-diet-gene-interactions-a-targeted-metabolomics-study-in-greek-cypriot-women
#15
Maria G Kakkoura, Kleitos Sokratous, Christiana A Demetriou, Maria A Loizidou, Giorgos Loucaides, Eleni Kakouri, Andreas Hadjisavvas, Kyriacos Kyriacou
SCOPE: A high adherence to the Mediterranean diet (MD) was previously associated with a decreased risk of breast cancer (BC) among Greek-Cypriot women. Additionally, particular polymorphisms were shown to modulate this MD-BC association. Herein, we aimed to investigate the effect of polymorphisms-MD interactions on the levels of specific metabolites that could be related to dietary adherence or enzymatic activity, which is itself modulated by polymorphisms. METHODS AND RESULTS: Greek-Cypriot women who were BC controls and had the lowest or the highest MD adherence (vegetables, fruit, legumes, fish) as assessed by principal component analysis (n = 564) were included...
November 18, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27855657/genetic-dissection-of-the-fatty-liver-qtl-fl1sa-by-using-congenic-mice-and-identification-of-candidate-genes-in-the-liver-and-epididymal-fat
#16
Miyako Suzuki, Misato Kobayashi, Tamio Ohno, Shinsaku Kanamori, Soushi Tateishi, Atsushi Murai, Fumihiko Horio
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is a multifactorial disease caused by interactions between environmental and genetic factors. The SMXA-5 mouse is a high-fat diet-induced fatty liver model established from SM/J and A/J strains. We have previously identified Fl1sa, a quantitative trait locus (QTL) for fatty liver on chromosome 12 (centromere-53.06 Mb) of SMXA-5 mice. However, the chromosomal region containing Fl1sa was too broad. The aim of this study was to narrow the Fl1sa region by genetic dissection using novel congenic mice and to identify candidate genes within the narrowed Fl1sa region...
November 17, 2016: BMC Genetics
https://www.readbyqxmd.com/read/27853810/inflammation-but-not-recruitment-of-adipose-tissue-macrophages-requires-signalling-through-mac-1-cd11b-cd18-in-diet-induced-obesity-dio
#17
Dennis Wolf, Nora Bukosza, David Engel, Marjorie Poggi, Felix Jehle, Nathaly Anto Michel, Yung-Chih Chen, Christian Colberg, Natalie Hoppe, Bianca Dufner, Louis Boon, Hermann Blankenbach, Ingo Hilgendorf, Constantin von Zur Muhlen, Jochen Reinöhl, Björn Sommer, Timoteo Marchini, Mark A Febbraio, Christian Weber, Christoph Bode, Karlheinz Peter, Esther Lutgens, Andreas Zirlik
Cell accumulation is a prerequisite for adipose tissue inflammation. The leukocyte integrin Mac-1 (CD11b/CD18, αMβ2) is a classic adhesion receptor critically regulating inflammatory cell recruitment. Here, we tested the hypothesis that a genetic deficiency and a therapeutic modulation of Mac-1 regulate adipose tissue inflammation in a mouse model of diet-induced obesity (DIO). C57Bl6/J mice genetically deficient (Mac-1(-/-)) or competent for Mac-1 (WT) consumed a high fat diet for 20 weeks. Surprisingly, Mac-1(-/-) mice presented with increased diet-induced weight gain, decreased insulin sensitivity in skeletal muscle and in the liver in insulin-clamps, insulin secretion deficiency and elevated glucose levels in fasting animals, and dyslipidaemia...
November 17, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/27845741/cst-an-herbal-formula-exerts-anti-obesity-effects-through-brain-gut-adipose-tissue-axis-modulation-in-high-fat-diet-fed-mice
#18
AbuZar Ansari, Shambhunath Bose, Mukesh Kumar Yadav, Jing-Hua Wang, Yun-Kyung Song, Seong-Gyu Ko, Hojun Kim
The brain, gut, and adipose tissue interact to control metabolic pathways, and impairment in the brain-gut-adipose axis can lead to metabolic disorders, including obesity. Chowiseungcheng-tang (CST), a herbal formulation, is frequently used to treat metabolic disorders. Here, we investigated the anti-obesity effect of CST and its link with brain-gut-adipose axis using C57BL/6J mice as a model. The animals were provided with a normal research diet (NRD) or high-fat diet (HFD) in absence or presence of CST or orlistat (ORL) for 12 weeks...
November 11, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27836721/the-european-seabass-dicentrarchus-labrax-innate-immunity-and-gut-health-are-modulated-by-dietary-plant-protein-inclusion-and-prebiotic-supplementation
#19
Rita Azeredo, Marina Machado, Eva Kreuz, Sven Wuertz, Aires Oliva-Teles, Paula Enes, Benjamín Costas
Inclusion of prebiotics in aqua feeds, though a costly strategy, has increased as a means to improve growth. Still, its effects on health improvement are not fully disclosed. Regarding their immunestimulatory properties, research has focused on carbohydrates such as fructooligosaccharides and xylooligosaccharides demonstrating their modulatory effects on immune defences in higher vertebrates but few studies have been done on their impact on fish immunity. Replacing fish meal (FM) by plant protein (PP) sources is a current practice in the aquaculture business but their content in antinutrients is still a drawback in terms of gut well-functioning...
November 9, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27833053/western-diet-enhances-intestinal-tumorigenesis-in-min-mice-associating-with-mucosal-metabolic-and-inflammatory-stress-and-loss-of-apc-heterozygosity
#20
Mikael Niku, Anne-Maria Pajari, Laura Sarantaus, Essi Päivärinta, Markus Storvik, Anu Heiman-Lindh, Santeri Suokas, Minna Nyström, Marja Mutanen
Western-type diet (WD) is a risk factor for colorectal cancer, but the underlying mechanisms are poorly understood. We investigated the interaction of WD and heterozygous mutation in the Apc gene on adenoma formation and metabolic and immunological changes in the histologically normal intestinal mucosa of Apc(Min/+) (Min/+) mice. The diet used was high in saturated fat and low in calcium, vitamin D, fiber and folate. The number of adenomas was twofold higher in the WD mice compared to controls, but adenoma size, proliferation or apoptosis did not differ...
October 11, 2016: Journal of Nutritional Biochemistry
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