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https://www.readbyqxmd.com/read/29691609/effect-of-25-hydroxyvitamin-d-deficiency-and-its-interaction-with-prednisone-treatment-on-musculoskeletal-health-in-growing-mdx-mice
#1
Sung-Hee Yoon, Kim S Sugamori, Marc D Grynpas, Jane Mitchell
Duchenne muscular dystrophy (DMD) results from genetic mutations of the gene encoding dystrophin, leading to muscle inflammation and degeneration that is typically treated with glucocorticoids. DMD and its treatment with glucocorticoids result in poor bone health and high risk of fractures. Insufficient levels of 25-hydroxyvitamin D (25-hydroxy D) that may contribute to weakened bone are routinely found in DMD patients. To determine the effect of 25-hydroxy D deficiency, this study examined the effects of low vitamin D dietary intake with and without glucocorticoids on the musculoskeletal system of the Mdx mouse model of DMD...
April 24, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29689276/withaferin-a-and-sulforaphane-regulate-breast-cancer-cell-cycle-progression-through-epigenetic-mechanisms
#2
Kendra J Royston, Bidisha Paul, Susan Nozell, Rajani Rajbhandari, Trygve O Tollefsbol
Little is known about the effects of combinatorial dietary compounds on the regulation of epigenetic mechanisms involved in breast cancer prevention. The human diet consists of a multitude of components, and there is a need to elucidate how certain compounds interact in collaboration. Withaferin A (WA), found in the Indian winter cherry and documented as a DNA methyltransferase (DNMT) inhibitor, and sulforaphane (SFN), a well-known histone deacetylase (HDAC) inhibitor found in cruciferous vegetables, are two epigenetic modifying compounds that have only recently been studied in conjunction...
April 21, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29686896/the-association-between-obesity-risk-genes-and-gestational-weight-gain-is-modified-by-dietary-intake-in-african-american-women
#3
Ying Meng, Susan W Groth, Dongmei Li
Obesity-risk genes have been associated with dietary intake, appetite regulation, and gestational weight gain (GWG). The purpose of this study was to examine whether dietary intake including total energy intake and macronutrients modify or mediate the association between obesity-risk genes and GWG. An observational study was conducted with 85 African American pregnant women. Sociodemographic, medical, and lifestyle factors and dietary recalls were collected during pregnancy. Seven obesity-risk genetic variants were genotyped...
2018: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/29685968/impact-of-dietary-gut-microbial-metabolites-on-the-epigenome
#4
REVIEW
Clarissa Gerhauser
Within the past decade, epigenetic mechanisms and their modulation by natural products have gained increasing interest. Dietary bioactive compounds from various sources, including green tea, soya, fruit and berries, cruciferous vegetables, whole grain foods, fish and others, have been shown to target enzymes involved in epigenetic gene regulation, including DNA methyltransferases, histone acetyltransferases, deacetylases and demethylases in vitro and in cell culture. Also, many dietary agents were shown to alter miRNA expression...
June 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29674325/adenylate-cyclase-type-9-adcy9-inactivation-protects-from-atherosclerosis-only-in-the-absence-of-cholesteryl-ester-transfer-protein-cetp
#5
Yohann Rautureau, Vanessa Deschambault, Marie-Ève Higgins, Daniel Rivas, Mélanie Mecteau, Pascale Geoffroy, Géraldine Miquel, Kurunradeth Uy, Rocio Sanchez, Véronique Lavoie, Geneviève Brand, Audrey Nault, Pierre-Marc Williams, Maria Laura Suarez, Nolwenn Merlet, Line Lapointe, Natacha Duquette, Marc-Antoine Gillis, Samaneh Samami, Gaétan Mayer, Philippe Pouliot, Adeline Raignault, Foued Maafi, Mathieu R Brodeur, Sylvie Levesque, Marie-Claude Guertin, Marie-Pierre Dubé, Éric Thorin, David Rhainds, Éric Rhéaume, Jean-Claude Tardif
Background -Pharmacogenomic studies have shown that ADCY9 genotype determines the effects of the cholesteryl ester transfer protein (CETP) inhibitor dalcetrapib on cardiovascular events and atherosclerosis imaging. The underlying mechanisms responsible for the interactions between ADCY9 and CETP activity have not yet been determined. Methods - Adcy9 -inactivated ( Adcy9 Gt/Gt ) and wild-type (WT) mice, that were or not transgenic for the CETP gene (CETPtg Adcy9 Gt/Gt and CETPtg Adcy9 WT ), were submitted to an atherogenic protocol (injection of an AAV8 expressing a PCSK9 gain-of-function variant and 0...
April 19, 2018: Circulation
https://www.readbyqxmd.com/read/29674123/effects-of-dietary-toxic-cyanobacteria-and-ammonia-exposure-on-immune-function-of-blunt-snout-bream-megalabrama-amblycephala
#6
Hu Xia, Ting Song, Li Wang, Liangsen Jiang, Qiting Zhou, Weimin Wang, Liangguo Liu, Pinhong Yang, Xuezhen Zhang
Cyanobacterial blooms caused by water eutrophication have become a worldwide problem. During the degradation of toxic cyanobacterial blooms, elevated ammonia and microcystins concentrations co-occur and exert toxicity on fish. Up to now, the combined effect of microcystins and ammonia on fish immunotoxicity has not been reported. The present study investigated immune responses of blunt snout bream (Megalabrama amblycephala) to dietary toxic cyanobacteria and ammonia exposure. Megalobrama amblycephala were exposed to solutions with different concentrations of NH3 -N (0, 0...
April 16, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29673854/silencing-of-non-pou-domain-containing-octamer-binding-protein-stabilizes-atherosclerotic-plaque-in-apolipoprotein-e-knockout-mice-via-nf-%C3%AE%C2%BAb-signaling-pathway
#7
Kai Zhang, Fang Zhang, Jian-Min Yang, Jing Kong, Xiao Meng, Meng Zhang, Cheng Zhang, Yun Zhang
BACKGROUND: It remains unknown whether Non-POU-domain-containing octamer-binding protein (NonO) plays a causative role in plaque destabilization. We hypothesized that NonO gene silencing may stabilize atherosclerotic plaque by increasing P4Hα1 expression and inhibiting the inflammation. METHODS AND RESULTS: Vulnerable atherosclerotic plaques were induced in ApoE-/- mice by high fat diet, perivascular collar placement and mental stress. Compared with normal carotid arteries, those contained vulnerable plaques had high NonO expression...
April 7, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29673593/augmented-neutrophil-extracellular-traps-formation-promotes-atherosclerosis-development-in-socially-defeated-apoe-mice
#8
Keita Yamamoto, Hiroyuki Yamada, Noriyuki Wakana, Masakazu Kikai, Kensuke Terada, Naotoshi Wada, Shinichiro Motoyama, Makoto Saburi, Takeshi Sugimoto, Daisuke Kami, Takehiro Ogata, Masakazu Ibi, Chihiro Yabe-Nishimura, Satoaki Matoba
Depression is an independent risk factor of cardiovascular disease (CVD); however, the causal association remains undefined. We exposed mice to repeated social defeat (RSD) to precipitate depressive-like behaviors, and investigated the effects on atherosclerosis. Eight-week-old male apoE-/- mice were exposed to RSD by housing with a larger CD-1 mouse in a shared home cage. They were subjected to vigorous physical contact daily for 10 consecutive days and fed a high-cholesterol diet (HCD) for 6 weeks. The social interaction ratio and immobility time showed dramatic social avoidance before and after HCD feeding...
April 16, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29673546/interactions-among-the-variants-of-insulin-related-genes-and-nutrients-increase-the-risk-of-type-2-diabetes
#9
Kyung-Won Hong, Sung Hoon Kim, Xin Zhang, Sunmin Park
Asians easily develops type 2 diabetes (T2DM) since they have insufficient glucose-stimulated insulin secretion (GSIS) in insulin resistant states. Since this may be associated with genetic background, the hypothesis of this study was that inter-genetic and gene-nutrient interactions may explain the low insulin secretory capacity of Asians. Accordingly, we identified the best gene-gene and gene-nutrient interactions using generalized multifactor dimensionality reduction (GMDR) in a large Korean cohort (n=8,842)...
March 2018: Nutrition Research
https://www.readbyqxmd.com/read/29669306/paternal-exercise-protects-mouse-offspring-from-high-fat-diet-induced-type-2-diabetes-risk-by-increasing-skeletal-muscle-insulin-signaling
#10
Danielle Krout, James N Roemmich, Amy Bundy, Rolando A Garcia, Lin Yan, Kate J Claycombe-Larson
Paternal obesity increases, while paternal exercise decreases, offspring obesity and type 2 diabetes (T2D) risk; however, no studies have determined whether a paternal high-fat (HF) diet and exercise interact to alter offspring body weight (BW), adiposity and T2D risk. Three-week-old male C57BL/6 mice were fed a normal-fat (NF) diet (16% fat) or an HF diet (45% fat) and assigned to either voluntary wheel running exercise or cage activity for 3 months prior to mating with NF-diet-fed dams. After weaning, male offspring were fed an NF or HF diet for an additional 3 months...
March 21, 2018: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29669261/chrebp-deficiency-leads-to-diarrhea-predominant-irritable-bowel-syndrome
#11
Ah-Reum Oh, Seonyong Sohn, Junghoon Lee, Jong-Min Park, Ki Taek Nam, Ki-Baik Hahm, Young-Bum Kim, Ho-Jae Lee, Ji-Young Cha
OBJECTIVE: Fructose malabsorption is a common digestive disorder in which absorption of fructose in the small intestine is impaired. An abnormality of the main intestinal fructose transporter proteins has been proposed as a cause for fructose malabsorption. However the underlying molecular mechanism for this remains unclear. In this study, we investigated whether carbohydrate response element-binding protein (ChREBP) plays a role in intestinal fructose absorption through the regulation of genes involved in fructose transport and metabolism and ion transport...
April 15, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29665623/dietary-mannan-oligosaccharides-modulate-gut-microbiota-increase-fecal-bile-acid-excretion-and-decrease-plasma-cholesterol-and-atherosclerosis-development
#12
Lisa R Hoving, Saeed Katiraei, Marieke Heijink, Amanda Pronk, Lianne van der Wee-Pals, Trea Streefland, Martin Giera, Ko Willems van Dijk, Vanessa van Harmelen
SCOPE: Mannan oligosaccharides (MOS) have proven effective at improving growth performance, while also reducing hyperlipidemia and inflammation. As atherosclerosis is accelerated both by hyperlipidemia and inflammation, we aimed to determine the effect of dietary MOS on atherosclerosis development in hyperlipidemic ApoE*3-Leiden.CETP (E3L.CETP) mice, a well-established model for human-like lipoprotein metabolism. METHODS AND RESULTS: Female E3L.CETP mice were fed a high cholesterol diet, with or without 1% MOS for 14 weeks...
April 17, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29660442/biochemical-and-cognitive-effects-of-docosahexaenoic-acid-differ-in-a-developmental-and-sorla-dependent-manner
#13
Anne Højland, Mette Richner, Simon Mølgaard, Ruthe Storgaard Dieu, Amanda Eskelund, Anders Nykjær, Jens Randel Nyengaard, Jens Lykkesfeldt, Simon Glerup, Morten Schallburg Nielsen
Beneficial effects of omega-3 fatty acid intake on cognition are under debate as some studies show beneficial effects while others show no effects of omega-3 supplementation. These inconsistencies may be a result of inter-individual response variations, potentially caused by gene and diet interactions. SorLA is a multifunctional receptor involved in ligand trafficking including lipoprotein lipase and amyloid precursor protein. Decreased SorLA levels have been correlated to Alzheimer's disease, and omega-3 fatty acid supplementation is known to increase SorLA expression in neuronal cell lines and mouse models...
April 13, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29659658/effect-of-dietary-fat-intake-and-genetics-on-fat-taste-sensitivity-a-co-twin-randomized-controlled-trial
#14
Andrew Costanzo, Caryl Nowson, Liliana Orellana, Dieuwerke Bolhuis, Konsta Duesing, Russell Keast
Background: Individuals with impaired fat taste (FT) sensitivity have reduced satiety responses after consuming fatty foods, leading to increased dietary fat intake. Habitual consumption of dietary fat may modulate sensitivity to FT, with high consumption decreasing sensitivity [increasing fatty acid taste threshold (FATT)] and low consumption increasing sensitivity (decreasing FATT). However, some individuals may be less susceptible to diet-mediated changes in FATT due to variations in gene expression...
April 6, 2018: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29659013/dietary-fat-and-fiber-interact-to-uniquely-modify-global-histone-post-translational-epigenetic-programming-in-a-rat-colon-cancer-progression-model
#15
Karen Triff, Mathew W McLean, Evelyn Callaway, Jennifer Goldsby, Ivan Ivanov, Robert S Chapkin
Dietary fermentable fiber generates short-chain fatty acids (SCFA), e.g., butyrate, in the colonic lumen which serves as a chemoprotective histone deacetylase inhibitor and/or as an acetylation substrate for histone acetylases. In addition, n-3 polyunsaturated fatty acids (n-3 PUFA) in fish oil can affect the chromatin landscape by acting as ligands for tumor suppressive nuclear receptors. In an effort to gain insight into the global dimension of post-translational modification of histones (including H3K4me3 and H3K9ac) and clarify the chemoprotective impact of dietary bioactive compounds on transcriptional control in a preclinical model of colon cancer, we generated high-resolution genome-wide RNA (RNA-Seq) and "chromatin-state" (H3K4me3-seq and H3K9ac-seq) maps for intestinal (epithelial colonocytes) crypts in rats treated with a colon carcinogen and fed diets containing bioactive (i) fish oil, (ii) fermentable fiber (a rich source of SCFA), (iii) a combination of fish oil plus pectin or (iv) control, devoid of fish oil or pectin...
April 16, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29649441/small-intestine-microbiota-regulate-host-digestive-and-absorptive-adaptive-responses-to-dietary-lipids
#16
Kristina Martinez-Guryn, Nathaniel Hubert, Katya Frazier, Saskia Urlass, Mark W Musch, Patricia Ojeda, Joseph F Pierre, Jun Miyoshi, Timothy J Sontag, Candace M Cham, Catherine A Reardon, Vanessa Leone, Eugene B Chang
The gut microbiota play important roles in lipid metabolism and absorption. However, the contribution of the small bowel microbiota of mammals to these diet-microbe interactions remains unclear. We determine that germ-free (GF) mice are resistant to diet-induced obesity and malabsorb fat with specifically impaired lipid digestion and absorption within the small intestine. Small bowel microbes are essential for host adaptation to dietary lipid changes by regulating gut epithelial processes involved in their digestion and absorption...
April 11, 2018: Cell Host & Microbe
https://www.readbyqxmd.com/read/29642965/host-symbiont-pathogen-interactions-in-blood-feeding-parasites-nutrition-immune-cross-talk-and-gene-exchange
#17
Filip Husnik
Animals are common hosts of mutualistic, commensal and pathogenic microorganisms. Blood-feeding parasites feed on a diet that is nutritionally unbalanced and thus often rely on symbionts to supplement essential nutrients. However, they are also of medical importance as they can be infected by pathogens such as bacteria, protists or viruses that take advantage of the blood-feeding nutritional strategy for own transmission. Since blood-feeding evolved multiple times independently in diverse animals, it showcases a gradient of host-microbe interactions...
April 12, 2018: Parasitology
https://www.readbyqxmd.com/read/29625018/sugar-sensor-genes-in-the-murine-gastrointestinal-tract-display-a-cephalocaudal-axis-of-expression-and-a-diurnal-rhythm
#18
Patrick O'Brien, Rhys Hewett, Christopher Corpe
Distributed along the length of the gastrointestinal (GI) tract are nutrient sensing cells that release numerous signalling peptides influencing GI function, nutrient homeostasis and energy balance. Recent studies have shown a diurnal rhythm in GI nutrient sensing, but the mechanisms responsible for rhythmicity are poorly understood. In this report we studied murine GI sugar sensor gene and protein expression levels in the morning (7am) and evening (7pm). Sweet taste receptor (tas1r2/tas1r3/gnat3/ gnat1) sugar transporter (slc5a1, slc2a2, slc2a5) and putative sugar sensor (slc5a4a and slc5a4b) gene expression levels were highest in tongue, proximal and distal small intestine, respectively...
April 6, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29618337/gene-co-expression-networks-in-liver-and-muscle-transcriptome-reveal-sex-specific-gene-expression-in-lambs-fed-with-a-mix-of-essential-oils
#19
Marcella Sabino, Victor Adriano Okstoft Carmelo, Gianluca Mazzoni, Katia Cappelli, Stefano Capomaccio, Paolo Ajmone-Marsan, Andrea Verini-Supplizi, Massimo Trabalza-Marinucci, Haja N Kadarmideen
BACKGROUND: Essential oil (EO) dietary supplementation is a new strategy to improve animal health. EO compounds have antiparasitic, antimicrobial, antiviral, antimycotic, antioxidant and anti-inflammatory proprieties. Nutrigenomics investigations represent innovative approaches in understanding the relation between diet effect and gene expression related to the animal performance. Few nutrigenomics studies have used a high-throughput RNA-Sequencing (RNA-Seq) approach, despite great potential of RNA-Seq data in gene expression quantification and in co-expression network analyses...
April 4, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29604292/improved-diet-quality-associates-with-reduction-in-liver-fat-particularly-in-individuals-with-high-genetic-risk-scores-for-nonalcoholic-fatty-liver-disease
#20
Jiantao Ma, Rachel Hennein, Chunyu Liu, Michelle T Long, Udo Hoffmann, Paul F Jacques, Alice H Lichtenstein, Frank B Hu, Daniel Levy
BACKGROUND & AIMS: Dietary modification has been recommended for treatment of nonalcoholic fatty liver disease (NAFLD), although it is not clear whether improving diet quality can prevent its development. We performed a prospective study to examine the association between diet quality change and change in liver fat change. We also examined the association between genetic risk score and liver fat change in individuals with different levels of diet quality change. METHODS: Our study included 1521 participants who attended the seventh and eighth examinations (1998-2001 and 2005-2008) of the second-generation cohort or attended the first and second examinations (2002-2005 and 2008-2011) of the third-generation cohort in the Framingham Heart Study...
March 28, 2018: Gastroenterology
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