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https://www.readbyqxmd.com/read/28598954/role-of-the-sympathetic-nervous-system-in-regulation-of-the-sodium-glucose-cotransporter-2
#1
Vance B Matthews, Rosemary H Elliot, Caroline Rudnicka, Jana Hricova, Lakshini Herat, Markus P Schlaich
BACKGROUND: The sympathetic nervous system (SNS) regulates glucose metabolism in various organs including the kidneys. The sodium glucose cotransporter 2 (SGLT2) mediates glucose reabsorption in renal proximal tubules and its inhibition has been shown to improve glucose control, cardiovascular and renal outcomes. We hypothesized that SNS-induced alterations of glucose metabolism may be mediated via regulation of SGLT2. METHOD: We used human renal proximal tubule cells to investigate the effects of noradrenaline on SGLT2 regulation...
June 8, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28572512/deletion-of-interleukin-1-receptor-associated-kinase-1-irak1-improves-glucose-tolerance-primarily-by-increasing-insulin-sensitivity-in-skeletal-muscle
#2
Xiao Jian Sun, Soohyun Park Kim, Dongming Zhang, Helen Sun, Qi Cao, Xin Lu, Zhekang Ying, Liwu Li, Robert R Henry, Theodore P Ciaraldi, Simeon I Taylor, Michael J Quon
Chronic inflammation may contribute to insulin resistance (IR) via molecular cross-talk between pathways for pro-inflammatory and insulin signaling. Interleukin 1 receptor associated kinase 1 (IRAK1) mediates pro-inflammatory signaling via IL-1 receptor/Toll-like receptors, which may contribute to insulin resistance, but this hypothesis is untested. Here, we used male Irak1 null (k/o) mice to investigate the metabolic role of IRAK1. C57BL/6 wild-type (WT) and k/o mice had comparable body weights on low-fat and high-fat diets (LFD and HFD, respectively)...
June 1, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28566533/brown-adipose-tissue-is-associated-with-systemic-concentrations-of-peptides-secreted-from-the-gastrointestinal-system-and-involved-in-appetite-regulation
#3
Maria Chondronikola, Craig Porter, Ioannis Malagaris, Aikaterini A Nella, Labros S Sidossis
OBJECTIVE: Brown adipose tissue (BAT) has been proposed as a potential therapeutic target against obesity and its related metabolic conditions. Data from studies in rodents support a cross talk between BAT and other distal tissues. The relation between BAT and peptide hormones secreted from the gastrointestinal system (GI) and involved in appetite regulation is not known in humans. DESIGN: We studied 18 men during thermoneutral conditions and mild non-shivering cold exposure (CE)...
July 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28468951/insulin-resistance-promotes-lysyl-oxidase-like-2induction-and-fibrosis-accumulation-in-nonalcoholic-fatty-liver-disease
#4
Paola Dongiovanni, Marica Meroni, Guido Alessandro Baselli, Giulia Alessandra Bassani, Raffaela Rametta, Alessandro Pietrelli, Marco Maggioni, Federica Facciotti, Valentina Trunzo, Sara Badiali, Silvia Fargion, Stefano Gatti, Luca Vittorio Carlo Valenti
Background & Aims: In patients with nonalcoholic fatty liver disease (NAFLD), insulin resistance (IR) associates with fibrosis progression independently of hepatic inflammation, but the mechanisms are still unclear. Methods : We modeled the independent contribution of inflammation (steatohepatitis: NASH) by exploiting the methionine-choline deficient (MCD) diet, and that of IR by insulin receptor haploinsufficiency (InsR+/-), in the pathogenesis of liver fibrosis in C57Bl/6 mice. We confirmed study findings in 96 patients with NAFLD...
May 3, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28396530/downregulation-of-plzf-gene-ameliorates-metabolic-and-cardiac-traits-in-the-spontaneously-hypertensive-rat
#5
František Liška, Vladimír Landa, Václav Zídek, Petr Mlejnek, Jan Šilhavý, Miroslava Šimáková, Hynek Strnad, Jaroslava Trnovská, Vojtěch Škop, Ludmila Kazdová, Colby G Starker, Daniel F Voytas, Zsuzsanna Izsvák, Massimiliano Mancini, Ondřej Šeda, Vladimír Křen, Michal Pravenec
The spontaneously hypertensive rat (SHR), one of the most widely used model of essential hypertension, is predisposed to left ventricular hypertrophy, myocardial fibrosis, and metabolic disturbances. Recently, quantitative trait loci influencing blood pressure, left ventricular mass, and heart interstitial fibrosis were genetically isolated within a minimal congenic subline that contains only 7 genes, including mutant Plzf (promyelocytic leukemia zinc finger) candidate gene. To identify Plzf as a quantitative trait gene, we targeted Plzf in the SHR using the transcription activator-like effector nuclease technique and obtained SHR line harboring targeted Plzf gene with a premature stop codon...
June 2017: Hypertension
https://www.readbyqxmd.com/read/28362001/cross-talk-among-metabolic-parameters-esophageal-microbiota-and-host-gene-expression-following-chronic-exposure-to-an-obesogenic-diet
#6
Nadeem O Kaakoush, Virginie Lecomte, Christopher A Maloney, Margaret J Morris
Unhealthy diets, and ensuing weight gain, predispose individuals to the development of esophageal adenocarcinoma. We examined the effect of chronic high fat diet (HFD) on the esophageal microbiota of Sprague Dawley rats using Illumina MiSeq amplicon sequencing (V4, 515 F/806 R) and on esophageal expression of IL18, PTGS2, PPARA, FFAR3, and CRAT. The relationships among metabolic parameters, esophageal microbiota, and host gene expression were determined. We observed a significant difference between the upper and lower esophageal microbiota in control fed rats, emphasized by enrichment of Lactobacillus species in the lower esophagus...
March 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28289278/cafeteria-diet-and-probiotic-therapy-cross-talk-among-memory-neuroplasticity-serotonin-receptors-and-gut-microbiota-in-the-rat
#7
J E Beilharz, N O Kaakoush, J Maniam, M J Morris
The western diet is known to have detrimental effects on cognition and the gut microbiota, but few studies have investigated how these may be related. Here, we examined whether a probiotic could prevent diet-induced memory deficits. Rats were pre-exposed to vehicle, low or high doses of VSL#3 for 2 weeks before half were switched from chow to a cafeteria diet (Caf) for 25 days; VSL#3 treatment continued until death. High-dose VSL#3 prevented the diet-induced memory deficits on the hippocampal-dependent place task, but the probiotic caused deficits on the perirhinal-dependent object task, irrespective of diet or dose...
March 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28251935/dietary-quality-changes-in-response-to-a-sugar-sweetened-beverage-reduction-intervention-results-from-the-talking-health-randomized-controlled-clinical-trial
#8
RANDOMIZED CONTROLLED TRIAL
Valisa E Hedrick, Brenda M Davy, Wen You, Kathleen J Porter, Paul A Estabrooks, Jamie M Zoellner
Background: The reduction of sugar-sweetened beverage (SSB) intake may be beneficial for weight management and other related health conditions; however, to our knowledge, no data exist regarding the spontaneous changes in other dietary components or the overall dietary quality after an SSB-reduction intervention.Objectives: We explored longitudinal changes within and between an SSB-reduction intervention (SIPsmartER) and a physical activity intervention (MoveMore) with respect to spontaneous changes in 1) energy intake and macronutrients and micronutrients, 2) dietary quality [Healthy Eating Index-2010 (HEI)], and 3) beverage categories...
April 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28191635/the-role-of-epicardial-adipose-tissue-in-cardiac-biology-classic-concepts-and-emerging-roles
#9
Alexios S Antonopoulos, Charalambos Antoniades
Classic concepts about the role of epicardial adipose tissue (EpAT) in heart physiology include its role in cardiac metabolism, mechanical protection of coronaries, innervation and possibly cryoprotection of the heart too. Nevertheless, recent evidence has revealed that epicardial adipose tissue regulates multiple aspects of cardiac biology including myocardial redox state, intracellular Ca(2+) cycling, the electrophysiological and contractile properties of cardiomyocytes, cardiac fibrosis as well as coronary atherosclerosis progression...
June 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28161660/everyone-else-is-doing-it-i-think-the-power-of-perception-in-fat-talk
#10
Courtney B Rogers, Denise M Martz, Rose Mary Webb, Amy T Galloway
Fat talk (FT) involves critiquing one's own appearance in social conversations. Although peers are known to prompt FT behavior, there has been little exploration of the influence of mothers and research has not distinguished between self-reported FT and perceptions of FT. This study addresses this research gap by investigating the relationships between participants' FT and corresponding FT of both self-reported and perceived FT of their mothers and friends. A sample of 120 undergraduate women, along with their mothers and friends, reported their FT behavior...
March 2017: Body Image
https://www.readbyqxmd.com/read/28148268/mesenchymal-stem-cells-key-players-in-cancer-progression
#11
REVIEW
Sarah M Ridge, Francis J Sullivan, Sharon A Glynn
Tumour progression is dependent on the interaction between tumour cells and cells of the surrounding microenvironment. The tumour is a dynamic milieu consisting of various cell types such as endothelial cells, fibroblasts, cells of the immune system and mesenchymal stem cells (MSCs). MSCs are multipotent stromal cells that are known to reside in various areas such as the bone marrow, fat and dental pulp. MSCs have been found to migrate towards inflammatory sites and studies have shown that they also migrate towards and incorporate into the tumour...
February 1, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28096344/atrial-natriuretic-peptide-regulates-adipose-tissue-accumulation-in-adult-atria
#12
Nadine Suffee, Thomas Moore-Morris, Patrick Farahmand, Catherine Rücker-Martin, Gilles Dilanian, Magali Fradet, Daigo Sawaki, Geneviève Derumeaux, Pascal LePrince, Karine Clément, Isabelle Dugail, Michel Puceat, Stéphane N Hatem
The abundance of epicardial adipose tissue (EAT) is associated with atrial fibrillation (AF), the most frequent cardiac arrhythmia. However, both the origin and the factors involved in EAT expansion are unknown. Here, we found that adult human atrial epicardial cells were highly adipogenic through an epithelial-mesenchymal transition both in vitro and in vivo. In a genetic lineage tracing the WT1(CreERT2+/-)Rosa(tdT+/-) mouse model subjected to a high-fat diet, adipocytes of atrial EAT derived from a subset of epicardial progenitors...
January 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27869572/is-listening-to-fat-talk-the-same-as-participating-in-fat-talk
#13
Linda Lin, Meghann Soby
Our study examined whether verbally participating in fat talk conversations had a different effect on women's body image perception than merely listening to friends engage in fat talk conversations. Participants were 321 women who completed measures of listening to and participating in fat talk conversations, drive for thinness, body dissatisfaction, and dietary restraint. Results indicated that verbally participating in fat talk was a much stronger predictor of women's drive for thinness, body dissatisfaction, and dietary restraint than merely listening to friends engage in fat talk conversations...
March 2017: Eating Disorders
https://www.readbyqxmd.com/read/27845859/cross-talk-between-muscle-and-bone-in-postmenopausal-women-with-hypovitaminosis-d
#14
RANDOMIZED CONTROLLED TRIAL
M Vuksanovic, G Mihajlovic, T Beljic Zivkovic, A Gavrilovic, B Arsenovic, J Zvekic Svorcan, M Marjanovic Petkovic, S Vujovic
OBJECTIVES: Visceral fat is more harmful than subcutaneous fat. Women with high amounts of visceral fat have an increased risk of metabolic syndrome (MetS), insulin resistance and low level of serum vitamin D. METHODS: This was a prospective, randomized and controlled study. Postmenopausal women (n = 101) aged 45-70 years were included. The assessed parameters were: body mass index (BMI), waist circumference (WC), 25-hydroxyvitamin D (25-OHD) status, serum insulin and HOMA-IR, bone mineral density, total fat mass, fat mass index (FMI) measured by DXA, and muscle strength...
February 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/27833747/microbiota-host-interplay-at-the-gut-epithelial-level-health-and-nutrition
#15
REVIEW
Jean-Paul Lallès
Growing evidence suggests the implication of the gut microbiota in various facets of health and disease. In this review, the focus is put on microbiota-host molecular cross-talk at the gut epithelial level with special emphasis on two defense systems: intestinal alkaline phosphatase (IAP) and inducible heat shock proteins (iHSPs). Both IAP and iHSPs are induced by various microbial structural components (e.g. lipopolysaccharide, flagellin, CpG DNA motifs), metabolites (e.g. n-butyrate) or secreted signal molecules (e...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27821368/preferred-descriptions-for-loss-of-control-while-eating-and-weight-among-patients-with-binge-eating-disorder
#16
Christina A Roberto, Katharine Galbraith, Janet A Lydecker, Valentina Ivezaj, Rachel D Barnes, Marney A White, Carlos M Grilo
Patients with binge eating disorder (BED) typically also have excess weight, making them vulnerable to stigmatizing attitudes about mental illness and obesity. Further, one of the diagnostic features of BED is experiencing a loss of control during binge eating episodes. It is possible that patients feel negatively judged when clinicians assess for loss of control as it may activate stereotypes of patients with obesity lacking willpower. We developed a questionnaire to assess preferences for common loss of control descriptions and gathered data on preferences for weight-related terms among 46 patients with BED...
December 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27818678/transcriptome-wide-analysis-reveals-the-role-of-ppar%C3%AE-controlling-the-lipid-metabolism-in-goat-mammary-epithelial-cells
#17
Hengbo Shi, Wangsheng Zhao, Changhui Zhang, Khuram Shahzad, Jun Luo, Juan J Loor
To explore the large-scale effect of peroxisome proliferator-activated receptor γ (PPARG) in goat mammary epithelial cells (GMEC), an oligonucleotide microarray platform was used for transcriptome profiling in cells overexpressing PPARG and incubated with or without rosiglitazone (ROSI, a PPARγ agonist). A total of 1143 differentially expressed genes (DEG) due to treatment were detected. The Dynamic Impact Approach (DIA) analysis uncovered the most impacted and induced pathways "fatty acid elongation in mitochondria," "glycosaminoglycan biosynthesis-keratan sulfate," and "pentose phosphate pathway...
2016: PPAR Research
https://www.readbyqxmd.com/read/27813208/an-interactive-training-programme-to-treat-body-image-disturbance
#18
RANDOMIZED CONTROLLED TRIAL
Lucinda J Gledhill, Katri K Cornelissen, Piers L Cornelissen, Ian S Penton-Voak, Marcus R Munafò, Martin J Tovée
OBJECTIVES: Anorexia nervosa (AN) is a life-threatening mental health condition. A core feature is a disturbance of body image, such that sufferers see themselves as fatter than they actually are. DESIGN: We tested the effectiveness of a novel training programme to recalibrate our participants' perception of body size. METHODS: In a novel adaptation of a cognitive bias training programme, participants judged the body size of a series of female bodies and were given feedback to improve their accuracy over four daily training sessions...
February 2017: British Journal of Health Psychology
https://www.readbyqxmd.com/read/27699898/adipose-tissue-regulates-insulin-sensitivity-role-of-adipogenesis-de-novo-lipogenesis-and-novel-lipids
#19
REVIEW
U Smith, B B Kahn
Obesity, the major cause of the current global epidemic of type 2 diabetes (T2D), induces insulin resistance in peripheral insulin target tissues. Several mechanisms have been identified related to cross-talk between adipose tissue, skeletal muscle and liver. These mechanisms involve both increased free fatty acid release and altered secretion of adipokines from adipose tissue. A major determinant of metabolic health is the ability of subcutaneous adipose tissue (SAT) to store excess fat rather than allowing it to accumulate in ectopic depots including liver (i...
November 2016: Journal of Internal Medicine
https://www.readbyqxmd.com/read/27665505/is-fat-talk-more-believable-than-self-affirming-body-talk
#20
Alexandra F Corning, Michaela M Bucchianeri
Two experiments tested the extent to which the believability of women's body statements (fat talk or self-affirming) depends on their body type (thin or overweight). Experiment 1 (N=130) revealed fat talk was more believable than self-affirming talk regardless of body type. Experiment 2's (N=125) results showed, as hypothesized, that overweight women's fat talk was significantly more believable than fat talk by thin women and self-affirming talk by either thin or overweight women. Consistent with Experiment 1, there was a trend in Experiment 2 toward thin women's fat talk being more believable than their self-affirming talk...
December 2016: Body Image
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