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https://www.readbyqxmd.com/read/27903748/hepatic-expression-of-adenovirus-36-e4orf1-improves-glycemic-control-and-promotes-glucose-metabolism-via-akt-activation
#1
Travis B McMurphy, Wei Huang, Run Xiao, Xianglan Liu, Nikhil V Dhurandhar, Lei Cao
Considering that impaired proximal insulin signaling is linked with diabetes, approaches that enhance glucose disposal independent of insulin signaling are attractive. In vitro data indicate that the E4ORF1 peptide derived from human adenovirus 36 (Ad36) interacts with cells from adipose tissue, skeletal muscle and liver to enhance glucose disposal, independent of proximal insulin signaling. Adipocyte-specific expression of Ad36E4ORF1 improved hyperglycemia in mice. To determine the hepatic interaction of Ad36E4ORF1 in enhancing glycemic control, we expressed E4ORF1 of Ad36 or adenovirus 5, or fluorescent tag alone using recombinant adeno-associated viral vector in the livers of three mouse models...
November 30, 2016: Diabetes
https://www.readbyqxmd.com/read/27903375/-in-vivo-and-in-vitro-effects-of-cd137-stimulation-on-vascular-calcification-in-high-fat-diet-fed-apoe-mice
#2
Y Chen, J C Yan, J Y Weng, Z Q Wang, C P Wang, C Shao
Objective: To investigate the effect and related mechanism of CD137 stimulation on aortic atherosclerotic plaque calcification in high fat diet fed ApoE(-/-) mice and on calcification of vascular smooth muscle cells (VSMCs). Methods: (1) ApoE(-/-) mice fed with high fat diet were randomly divided into 3 groups: CD137 activated group (treated by 200 μg CD137 agonist i. p. once per week for 6 weeks, n=5); CD137 inhibited group (anti-CD137 group: 200 μg anti-CD137 antibody + 200 μg CD137 agonist, i. p., once per week for 6 weeks, n=5) and control group (n=5)...
October 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27888450/effects-of-chromium-loaded-chitosan-nanoparticles-on-glucose-transporter-4-relevant-mrna-and-proteins-of-phosphatidylinositol-3-kinase-akt2-kinase-and-amp-activated-protein-kinase-of-skeletal-muscles-in-finishing-pigs
#3
Lujie Liu, Bin Wang, Yudan He, Wenjing Tao, Zixun Liu, Minqi Wang
The study was conducted to evaluate the effects of chromium-loaded chitosan nanoparticles (Cr-CNP) on glucose transporter 4 (GLUT4), relevant messenger RNA (mRNA), and proteins involved in phosphatidylinositol 3-kinase (PI3K), Akt2-kinase, and AMP-activated protein kinase (AMPK) of skeletal muscles in finishing pigs. A total of 120 crossbred barrows (BW 65.00 ± 1.26 kg) were randomly allotted to four dietary treatments, with three pens per treatment and 10 pigs per pen. Pigs were fed the basal diet supplemented with 0, 100, 200, or 400 μg/kg of Cr from Cr-CNP for 35 days...
November 25, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27879253/the-yin-yang-dynamics-of-dna-methylation-is-the-key-regulator-for-smooth-muscle-cell-phenotype-switch-and-vascular-remodeling
#4
Jianhui Zhuang, Peipei Luan, Hailing Li, Kai Wang, Pei Zhang, Yawei Xu, Wenhui Peng
OBJECTIVE: DNA methylation plays an important role in chronic diseases such as atherosclerosis, yet the mechanisms are poorly understood. The objective of our study is to indicate the regulatory mechanisms of DNA methylation in vascular smooth muscle cells (VSMCs) and its roles in atherosclerosis. APPROACH AND RESULTS: In ApoE(-/-) mice fed a Western diet, DNA methyltransferase inhibitor, 5-aza-2'-deoxycytidine, significantly attenuated atherosclerotic lesions (20...
November 22, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27876617/canagliflozin-a-sodium-glucose-cotransporter-2-inhibitor-attenuates-obesity-induced-inflammation-in-the-nodose-ganglion-hypothalamus-and-skeletal-muscle-of-mice
#5
Farhana Naznin, Hideyuki Sakoda, Tadashi Okada, Hironobu Tsubouchi, T M Zaved Waise, Kenji Arakawa, Masamitsu Nakazato
Chronic inflammation in systemic organs, such as adipose tissue, nodose ganglion, hypothalamus, and skeletal muscles, is closely associated with obesity and diabetes mellitus. Because sodium glucose cotransporter 2 (SGLT2) inhibitors exert both anti-diabetic and anti-obesity effects by promoting urinary excretion of glucose and subsequent caloric loss, we investigated the effect of canagliflozin, an SGLT2 inhibitor, on obesity-induced inflammation in neural tissues and skeletal muscles of mice. High-fat diet (HFD)-fed male C57BL/6J mice were treated with canagliflozin for 8 weeks...
November 19, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27875740/conditional-knockout-of-tfpi-1-in-vsmcs-of-mice-accelerates-atherosclerosis-by-enhancing-amot-yap-pathway
#6
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/27872172/urea-a-true-uremic-toxin-the-empire-strikes-back
#7
REVIEW
Wei Ling Lau, Nosratola D Vaziri
Blood levels of urea rise with progressive decline in kidney function. Older studies examining acute urea infusion suggested that urea was well-tolerated at levels 8-10× above normal values. More recent in vitro and in vivo work argue the opposite and demonstrate both direct and indirect toxicities of urea, which probably promote the premature aging phenotype that is pervasive in chronic kidney disease (CKD). Elevated urea at concentrations typically encountered in uremic patients induces disintegration of the gut epithelial barrier, leading to translocation of bacterial toxins into the bloodstream and systemic inflammation...
January 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/27868454/the-atp-sensitive-k-channel-is-seizure-protective-and-required-for-effective-dietary-therapy-in-a-model-of-mitochondrial-encephalomyopathy
#8
Keri J Fogle, J Ian Hertzler, Joy H Shon, Michael J Palladino
Effective therapies are lacking for mitochondrial encephalomyopathies (MEs). MEs are devastating diseases that predominantly affect the energy-demanding tissues of the nervous system and muscle, causing symptoms such as seizures, cardiomyopathy, and neuro- and muscular degeneration. Even common anti-epileptic drugs which are frequently successful in ameliorating seizures in other diseases tend to have a lower success rate in ME, highlighting the need for novel drug targets, especially those that may couple metabolic sensitivity to neuronal excitability...
November 21, 2016: Journal of Neurogenetics
https://www.readbyqxmd.com/read/27865159/dietary-glutamine-supplementation-enhances-endothelial-progenitor-cell-mobilization-in-streptozotocin-induced-diabetic-mice-subjected-to-limb-ischemia
#9
Shiau-Tsz Su, Chiu-Li Yeh, Yu-Chen Hou, Man-Hui Pai, Sung-Ling Yeh
Diabetes is a metabolic disorder with increased risk of vascular diseases. Tissue ischemia may occur with diabetic vascular complications. Bone marrow-derived endothelial progenitor cells (EPCs) constitute a reparative response to ischemic injury. This study investigated the effects of oral glutamine (GLN) supplementation on circulating EPC mobilization and expression of tissue EPC-releasing markers in diabetic mice subjected to limb ischemia. Diabetes was induced by a daily intraperitoneal injection of streptozotocin for 5 days...
October 29, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27863371/healthy-me-a-gender-specific-program-to-address-body-image-concerns-and-risk-factors-among-preadolescents
#10
Marita P McCabe, Catherine Connaughton, Gemma Tatangelo, David Mellor
This study evaluated a gender-specific, school-based program to promote positive body image and address risk factors for body dissatisfaction. In total, 652 children aged 8-10 years participated (335 intervention, 317 wait-list control). Children participated in four 60min sessions and a recap session at three months post-intervention. The broad content areas were body image, peer relationships, media awareness, healthy diet, and exercise. The activities and examples for each session were gender specific. The recap session was an overview of the four sessions...
November 15, 2016: Body Image
https://www.readbyqxmd.com/read/27858497/high-fat-diet-and-exercise-lead-to-a-disrupted-and-pathogenic-dna-methylome-in-mouse-liver
#11
Dan Zhou, Ryan A Hlady, Marissa J Schafer, Thomas A White, Chen Liu, Jeong-Hyeon Choi, Jordan D Miller, Lewis R Roberts, Nathan K LeBrasseur, Keith D Robertson
High-fat diet consumption and sedentary life style elevates risk for obesity, non-alcoholic fatty liver disease, and cancer. Exercise training conveys health benefits in populations with or without these chronic conditions. Diet and exercise regulate gene expression by mediating epigenetic mechanisms in many tissues; however, such effects are poorly documented in the liver, a central metabolic organ. To dissect the consequences of diet and exercise on the liver epigenome, we measured DNA methylation, using reduced representation bisulfite sequencing, and transcription, using RNA-seq, in mice maintained on a fast food diet with sedentary lifestyle or exercise, compared to control diet with and without exercise...
November 18, 2016: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/27856454/endothelial-cell-specific-deletion-of-p2y2-receptor-promotes-plaque-stability-in-atherosclerosis-susceptible-apoe-null-mice
#12
Chen Xingjuan, Shaomin Qian, April Hoggatt, Hongying Tang, Timothy A Hacker, Alexander G Obukhov, Paul B Herring, Cheikh I Seye
OBJECTIVE: Nucleotide P2Y2 receptor (P2Y2R) contributes to vascular inflammation by increasing vascular cell adhesion molecule-1 expression in endothelial cells (EC), and global P2Y2R deficiency prevents fatty streak formation in apolipoprotein E null (ApoE(-/-)) mice. Because P2Y2R is ubiquitously expressed in vascular cells, we investigated the contribution of endothelial P2Y2R in the pathogenesis of atherosclerosis. APPROACH AND RESULTS: EC-specific P2Y2R-deficient mice were generated by breeding VEcadherin5-Cre mice with the P2Y2R floxed mice...
November 17, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27847551/caspase-3-deletion-promotes-necrosis-in-atherosclerotic-plaques-of-apoe-knockout-mice
#13
Mandy O J Grootaert, Dorien M Schrijvers, Marthe Hermans, Viviane O Van Hoof, Guido R Y De Meyer, Wim Martinet
Apoptosis of macrophages and vascular smooth muscle cells (VSMCs) in advanced atherosclerotic plaques contributes to plaque progression and instability. Caspase-3, a key executioner protease in the apoptotic pathway, has been identified in human and mouse atherosclerotic plaques but its role in atherogenesis is not fully explored. We therefore investigated the impact of caspase-3 deletion on atherosclerosis by crossbreeding caspase-3 knockout (Casp3(-/-)) mice with apolipoprotein E knockout (ApoE(-/-)) mice...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27834140/hypoxic-exercise-training-promotes-apelin-apj-expression-in-skeletal-muscles-of-high-fat-diet-induced-obese-mice
#14
Weixiu Ji, Lijing Gong, Jianxiong Wang, Hui He, Ying Zhang
Apelin, an endogenous ligand of the G-protein-coupled receptor APJ, is a novel myokine and may play a key role in regulating energy metabolism. The purpose of the present study was to investigate the effects of hypoxic exposure, exercise, and hypoxic exercise training on the expression of apelin and APJ in skeletal muscle of obese mice. 60 two-month old C57BL/6J mice were randomly divided into two groups: 10 in normal diet group (N) and 50 in the high fat diet (HFD) groups. After two months of feeding, the HFD mice whose body weight 20% higher than the average weight of N group were selected as obese mice and were further allocated into four groups: Control (C), Exercise (E), Hypoxia (H), and Exercise plus Hypoxia (E+H), at 8-9 mice/group...
November 11, 2016: Protein and Peptide Letters
https://www.readbyqxmd.com/read/27832859/dietary-fat-drives-whole-body-insulin-resistance-and-promotes-intestinal-inflammation-independent-of-body-weight-gain
#15
Benjamin A H Jensen, Thomas S Nielsen, Andreas M Fritzen, Jacob B Holm, Even Fjære, Annette K Serup, Kamil Borkowski, Steve Risis, Simone I Pærregaard, Ida Søgaard, Audrey Poupeau, Michelle Poulsen, Tao Ma, Christian Sina, Bente Kiens, Lise Madsen, Karsten Kristiansen, Jonas T Treebak
BACKGROUND: The obesogenic potential of high-fat diets (HFD) in rodents is attenuated when the protein:carbohydrate ratio is increased. However, it is not known if intake of an HFD irrespective of the protein:carbohydrate ratio and in the absence of weight gain, affects glucose homeostasis and the gut microbiota. METHODS: We fed C57BL6/J mice 3 different HFDs with decreasing protein:carbohydrate ratios for 8weeks and compared the results to a LFD reference group...
December 2016: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/27816814/vitamin-e-and-caloric-restriction-promote-hepatic-homeostasis-through-expression-of-connexin-26-n-cad-e-cad-and-cholesterol-metabolism-genes
#16
Leonardo Vinícius Santolim, Maria Esméria Corezola do Amaral, José Luís Fachi, Maíra Felonato Mendes, Camila Andréa de Oliveira
Connexins (Cx) and cadherins are responsible for cell homeostasis. The Cx activity is directly related to cholesterol. The present work investigates whether vitamin E, with or without caloric restriction (CR), alters the mRNA expression of Cx26, Cx32, Cx43, N-cadherins (N-cads), E-cadherins (E-cads) and alpha-smooth muscle actin (α-SMA), and evaluates their relation to cholesterol metabolism in rat liver. Animals were divided into different groups: control with ad libitum diet (C), control+vitamin E (CV), aloric restriction with intake to 60% of group C (CR), and the intake of group CR+vitamin E (RV)...
January 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27796348/metabolomics-reveals-the-protective-of-dihydromyricetin-on-glucose-homeostasis-by-enhancing-insulin-sensitivity
#17
Liang Le, Baoping Jiang, Wenting Wan, Wei Zhai, Lijia Xu, Keping Hu, Peigen Xiao
Dihydromyricetin (DMY), an important flavanone found in Ampelopsis grossedentata, possesses antioxidative properties that ameliorate skeletal muscle insulin sensitivity and exert a hepatoprotective effect. However, little is known about the effects of DMY in the context of high-fat diet (HFD)-induced hepatic insulin resistance. Male Sprague-Dawley(SD) rats were fed a HFD(60% fat) supplemented with DMY for 8 weeks. The administration of DMY to the rats with HFD-induced insulin resistance reduces hyperglycemia, plasma levels of insulin, and steatosis in the liver...
October 31, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27778642/conjugated-linoleic-acid-and-metformin-on-insulin-sensitivity-in-obese-children-randomized-clinical-trial
#18
Nayely Garibay-Nieto, Gloria Queipo-Garcia, Flor Alvarez-Huerta, Mayra Bustos-Esquivel, Erendira Villanueva-Ortega, Fernando Ramirez, Mireya Leon, Estibalitz Laresgoiti-Servitje, Ravindranath Duggirala, Teresa Macias, Sergio Cuevas, Abel Jalife, Miguel Fonseca-Sanchez, Fabiola Serratos, Juan Carlos Lopez-Alvarenga
CONTEXT: Insulin resistance precedes metabolic syndrome abnormalities and may promote cardiovascular disease and type 2 diabetes in children with obesity. Results of lifestyle modification programs have been discouraging, and the use of adjuvant strategies has been necessary. OBJECTIVE: This study aimed to evaluate the effects of metformin and conjugated linoleic acid (CLA) on insulin sensitivity, measured via euglycemic-hyperinsulinemic clamp technique and insulin pathway expression molecules in muscle biopsies of children with obesity...
October 25, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27765079/effect-of-dietary-lysine-on-performance-and-expression-of-electron-transport-chain-genes-in-the-pectoralis-major-muscle-of-broilers
#19
C O Brito, J L L Dutra, T N Dias, L T Barbosa, C S Nascimento, A P G Pinto, L F T Albino, R P M Fernandes, M S Macário, J S Melo
The aim of this study was to evaluate the effect of dietary lysine on performance, protein deposition and respiratory chain gene expression in male broilers. A total of 252 Cobb 500 broilers were distributed, in a completely randomized design, into four treatments with seven replicates of nine birds per experimental unit. Experimental treatments consisted of diets based on corn and soybean meal, with four levels of digestible lysine: 1.016%, 1.099%, 1.182% and 1.265%. The increase in the level of digestible lysine in the diet provided higher weight gains, feed efficiency and body protein deposition...
October 21, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27754289/br-08-1-high-sodium-intake-reduction-in-diabetes-with-hypertension
#20
Zhiming Zhu
Management of hypertension in diabetes is critical for reducing cardiovascular mortality and morbidity. Dietary approaches for controlling high blood pressure have historically focused on sodium. Thus, many guidelines recommend that patients with type 2 diabetes reduce high sodium intake. Nonetheless, the potential benefits of sodium reduction are debatable. The kidney has a crucial role in glucose filtration and reabsorption in addition to its regulation of fluid and electrolyte homeostasis. A key factor linking sodium uptake and glucose transport is the sodium-glucose cotransporter 2 (SGLT2) in renal proximal tubular cells...
September 2016: Journal of Hypertension
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