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Marion G Priebe, Jolene R McMonagle
BACKGROUND: In many countries breakfast cereals are an important component of breakfast. This systematic review assesses the contribution of consumption of ready-to eat cereal (RTEC) to the recommended nutrient intake. Furthermore, the effects of RTEC consumption on key health parameters are investigated as well as health promoting properties of RTEC. METHOD: The Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE and CINAHL have been searched up till 16th of June 2015...
2016: PloS One
Takashi Kuwano, Shin-Ichiro Miura, Kenji Norimatsu, Tadaaki Arimura, Yuhei Shiga, Sayo Tomita, Asuka Nakayama, Yoshino Matsuo, Satoshi Imaizumi, Keijiro Saku
Patients with type 2 diabetes mellitus (DM) exhibit modification of high-density lipoprotein (HDL), which is likely to have an important role in the development of atherosclerotic cardiovascular disease (ASCVD). Excess production of aldosterone (Ald) results in hypertension as well as ASCVD. However, the biological activity of modified HDL in steroidogenesis is not clear. We measured the accumulation of thiobarbituric acid-reactive substances (TBARSs) and Nɛ-(carboxymethyl)lysine (CML) levels (markers of oxidation and glycoxidation, respectively) in isolated HDL from 41 patients with type 2 diabetes mellitus (DM group) and 41 age- and gender-matched patients in a non-DM group...
October 13, 2016: Hypertension Research: Official Journal of the Japanese Society of Hypertension
Jie Zhang, Alan R Light, Charles L Hoppel, Caitlin Campbell, Carol J Chandler, Dustin J Burnett, Elaine C Souza, Gretchen A Casazza, Ronald W Hughen, Nancy L Keim, John W Newman, Gary R Hunter, Jose R Fernandez, W Timothy Garvey, Mary-Ellen Harper, Oliver Fiehn, Sean H Adams
With insulin-resistance or type 2 diabetes mellitus, mismatches between mitochondrial fatty acid fuel delivery and oxidative phosphorylation/tricarboxylic acid cycle activity may contribute to inordinate accumulation of short- or medium-chain acylcarnitine fatty acid derivatives (markers of incomplete long-chain fatty acid oxidation [FAO]). We reasoned that incomplete FAO in muscle would be ameliorated concurrent with improved insulin sensitivity and fitness following a ∼14 wk training and weight loss intervention in obese, sedentary, insulin-resistant women...
October 12, 2016: Experimental Physiology
Yan Gong, Zhuo Shao, Zhongjie Fu, Matthew L Edin, Ye Sun, Raffael G Liegl, Zhongxiao Wang, Chi-Hsiu Liu, Samuel B Burnim, Steven S Meng, Fred B Lih, John Paul SanGiovanni, Darryl C Zeldin, Ann Hellström, Lois E H Smith
Neovascular eye diseases including retinopathy of prematurity, diabetic retinopathy and age-related-macular-degeneration are major causes of blindness. Fenofibrate treatment in type 2 diabetes patients reduces progression of diabetic retinopathy independent of its peroxisome proliferator-activated receptor (PPAR)α agonist lipid lowering effect. The mechanism is unknown. Fenofibrate binds to and inhibits cytochrome P450 epoxygenase (CYP)2C with higher affinity than to PPARα. CYP2C metabolizes ω-3 long-chain polyunsaturated fatty acids (LCPUFAs)...
September 30, 2016: EBioMedicine
Jie Li, Bifei Lan, Xiaoli Li, Shumao Sun, Ping Lu, Lingyun Cheng
Transscleral drug delivery may become a safe alternative to the intravitreal injection for chronic retinal diseases such as age-related macular degeneration or diabetic macular edema. However, the drug delivered onto the sclera subjects to vigorous clearance by episcleral and choroidal circulation; in addition, the penetration from episclera to retina needs to overcome counter-directional ocular fluid current driven by intraocular pressure (IOP) as well as unfavorable drug disposition exerted by drug transporters before the drug reach retina...
October 4, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
Saba Parween, Elena Kostromina, Christoffer Nord, Maria Eriksson, Per Lindström, Ulf Ahlgren
The leptin deficient ob/ob mouse is a widely used model for studies on initial aspects of metabolic disturbances leading to type 2 diabetes, including insulin resistance and obesity. Although it is generally accepted that ob/ob mice display a dramatic increase in β-cell mass to compensate for increased insulin demand, the spatial and quantitative dynamics of β-cell mass distribution in this model has not been assessed by modern optical 3D imaging techniques. We applied optical projection tomography and ultramicroscopy imaging to extract information about individual islet β-cell volumes throughout the volume of ob/ob pancreas between 4 and 52 weeks of age...
October 7, 2016: Scientific Reports
Hui Li, John D Clarke, Anika L Dzierlenga, John Bear, Michael J Goedken, Nathan J Cherrington
Nonalcoholic steatohepatitis (NASH) has been identified as a source of significant interindividual variation in drug metabolism. A previous ex vivo study demonstrated significant changes in hepatic Cytochrome P450 (CYP) activity in human NASH. This study evaluated the in vivo activities of multiple CYP isoforms simultaneously in prominent diabetic NASH mouse models. The pharmacokinetics of CYP selective substrates: caffeine, losartan, and omeprazole changed significantly in a diabetic NASH mouse model, indicating attenuation of the activity of Cyp1a2 and Cyp2c29, respectively...
October 6, 2016: Journal of Biochemical and Molecular Toxicology
Nadine Reichhart, Sergio Crespo-Garcia, Nadine Haase, Michaela Golic, Sergej Skosyrski, Anne Rübsam, Christina Herrspiegel, Norbert Kociok, Natalia Alenina, Michael Bader, Ralf Dechend, Olaf Strauss, Antonia M Joussen
AIMS/HYPOTHESIS: Although the renin-angiotensin system plays an important role in the progression of diabetic retinopathy, its influence therein has not been systematically evaluated. Here we test the suitability of a new translational model of diabetic retinopathy, the TetO rat, for addressing the role of angiotensin-II receptor 1 (AT1) blockade in experimental diabetic retinopathy. METHODS: Diabetes was induced by tetracycline-inducible small hairpin RNA (shRNA) knockdown of the insulin receptor in rats, generating TetO rats...
October 4, 2016: Diabetologia
Sheo B Singh, Ling Kang, Andrea R Nawrocki, Dan Zhou, Margaret Wu, Stephen Previs, Corey Miller, Haiying Liu, Catherine D G Hines, Maria Madeira, Jin Cao, Kithsiri Herath, Liangsu Wang, David E Kelley, Cai Li, Hong-Ping Guan
OBJECTIVES: Platensimycin (PTM) is a natural antibiotic produced by Streptomyces platensis that selectively inhibits bacterial and mammalian fatty acid synthase (FAS) without affecting synthesis of other lipids. Recently, we reported that oral administration of PTM in mouse models (db/db and db/+) with high de novo lipogenesis (DNL) tone inhibited DNL and enhanced glucose oxidation, which in turn led to net reduction of liver triglycerides (TG), reduced ambient glucose, and improved insulin sensitivity...
2016: PloS One
Jacqueline R Benthuysen, Andrea C Carrano, Maike Sander
In the past decade, new approaches have been explored that are aimed at restoring functional β cell mass as a treatment strategy for diabetes. The two most intensely pursued strategies are β cell replacement through conversion of other cell types and β cell regeneration by enhancement of β cell replication. The approach closest to clinical implementation is the replacement of β cells with human pluripotent stem cell-derived (hPSC-derived) cells, which are currently under investigation in a clinical trial to assess their safety in humans...
October 3, 2016: Journal of Clinical Investigation
Ivana Nikolic, Ivana Stojanovic, Milica Vujicic, Paolo Fagone, Katia Mangano, Stanislava Stosic-Grujicic, Ferdinando Nicoletti, Tamara Saksida
Bovine colostrum is a rich source of nutrients and immunologically active components that play a role in conveying passive immunity to the offspring, protection and maturation of new-born's gastrointestinal tract. Colostrum has exerted positive effects in diseases affecting gastrointestinal tract, as well as type 2 diabetes (T2D). However, health-promoting effects in type 1 diabetes have not been reported. The aim of this study was to investigate therapeutic value of oral administration of standardized bovine colostrum derivative (SBCD) in three models of type 1 diabetes (T1D): spontaneously developed T1D in NOD mice and BB-DP rats, and in chemically induced T1D in C57BL/6 mice with multiple low doses of streptozotocin (MLDS)...
September 24, 2016: Immunobiology
Chika Ifeanyi Chukwuma, Mohammed Auwal Ibrahim, Md Shahidul Islam
This study investigated the effects of maltitol on intestinal glucose absorption and muscle glucose uptake using ex vivo and in vivo experimental models. The ex vivo experiment was conducted in isolated jejunum and psoas muscle from normal rats. The in vivo study investigated the effects of a single bolus dose of maltitol on gastric emptying, intestinal glucose absorption and digesta transit in normal and type 2 diabetic rats. Maltitol inhibited glucose absorption in isolated rat jejunum and increased glucose uptake in isolated rat psoas muscle in the presence of insulin but not in the absence of insulin...
August 12, 2016: International Journal of Food Sciences and Nutrition
Ranhua Xiong, Freya Joris, Sayuan Liang, Riet De Rycke, Saskia Lippens, Jo Demeester, Andre Skirtach, Koen Raemdonck, Uwe Himmelreich, Stefaan C De Smedt, Kevin Braeckmans
Long-term in vivo imaging of cells is crucial for the understanding of cellular fate in biological processes in cancer research, immunology, or in cell-based therapies such as beta cell transplantation in type I diabetes or stem cell therapy. Traditionally, cell labeling with the desired contrast agent occurs ex vivo via spontaneous endocytosis, which is a variable and slow process that requires optimization for each particular label-cell type combination. Following endocytic uptake, the contrast agents mostly remain entrapped in the endolysosomal compartment, which leads to signal instability, cytotoxicity, and asymmetric inheritance of the labels upon cell division...
October 3, 2016: Nano Letters
Periklis Dousdampanis, Kostantina Trigka, Athanasia Mouzaki
Kidney transplantation is recognised as the most effective treatment for patients with end-stage renal disease (ESRD). Kidney transplantation continues to face several challenges including long-term graft and patient survival, and the side effects of immunosuppressive therapy. The tendency in kidney transplantation is to avoid the side effects of immunosuppresants and induce immune tolerance. Regulatory T-cells (Tregs) contribute to self-tolerance, tolerance to alloantigen and transplant tolerance, mainly by suppressing the activation and function of reactive effector T-cells...
September 24, 2016: World Journal of Transplantation
Hyunyun Kim, Jisoo Yun, Sang-Mo Kwon
Accumulating evidence indicates that acute and chronic uncontrolled overproduction of oxidative stress-related factors including reactive oxygen species (ROS) causes cardiovascular diseases (CVDs), atherosclerosis, and diabetes. Moreover ROS mediate various signaling pathways underlying vascular inflammation in ischemic tissues. With respect to stem cell-based therapy, several studies clearly indicate that modulating antioxidant production at cellular levels enhances stem/progenitor cell functionalities, including proliferation, long-term survival in ischemic tissues, and complete differentiation of transplanted cells into mature vascular cells...
2016: Oxidative Medicine and Cellular Longevity
Toshifumi Sugatani, Olga A Agapova, Yifu Fang, Alycia G Berman, Joseph M Wallace, Hartmut H Malluche, Marie-Claude Faugere, William Smith, Victoria Sung, Keith A Hruska
Dysregulation of skeletal remodeling is a component of renal osteodystrophy. Previously, we showed that activin receptor signaling is differentially affected in various tissues in chronic kidney disease (CKD). We tested whether a ligand trap for the activin receptor type 2A (RAP-011) is an effective treatment of the osteodystrophy of the CKD-mineral bone disorder. With a 70% reduction in the glomerular filtration rate, CKD was induced at 14 weeks of age in the ldlr-/- high fat-fed mouse model of atherosclerotic vascular calcification and diabetes...
September 22, 2016: Kidney International
Qing Liu, Beiji Zou, Jie Chen, Wei Ke, Kejuan Yue, Zailiang Chen, Guoying Zhao
The automatic exudate segmentation in colour retinal fundus images is an important task in computer aided diagnosis and screening systems for diabetic retinopathy. In this paper, we present a location-to-segmentation strategy for automatic exudate segmentation in colour retinal fundus images, which includes three stages: anatomic structure removal, exudate location and exudate segmentation. In anatomic structure removal stage, matched filters based main vessels segmentation method and a saliency based optic disk segmentation method are proposed...
September 15, 2016: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
Florian Wiede, Faruk Sacirbegovic, Yew Ann Leong, Di Yu, Tony Tiganis
Non-coding single nucleotide polymorphisms that repress PTPN2 expression have been linked with the development of type 1 diabetes, rheumatoid arthritis and Crohn's disease. PTPN2 attenuates CD8(+) T cell responses to self and prevents overt autoreactivity in the context of T cell homeostasis and antigen cross-presentation. The role of PTPN2 in other immune subsets in the development of autoimmunity remains unclear. Here we show that the inducible deletion of PTPN2 in hematopoietic compartment of adult non-autoimmune prone mice results in systemic inflammation and autoimmunity...
September 19, 2016: Journal of Autoimmunity
Chen Qiu, Yan-Ping Wang, Xiao-Dong Pan, Xiao-Ying Liu, Zhou Chen, Li-Bin Liu
BACKGROUND: Type 2 diabetes mellitus (T2DM) increases the risk of developing Alzheimer's disease. Most recently, GLP-1 analogs have been shown to have a significant neuroprotective role in several neurodegenerative diseases. However, few are known on its potential mechanism. OBJECTIVE: In this study, we report the effect of exendin-4 (Ex-4), a GLP-1 receptor agonist, on amyloid-β(1-42) peptide oligomer-induced apoptosis in a PC12 neuronal cell model. METHODS: MTT, DAPI and Annexin-V/PI assays revealed that the viability of PC12 cells decreased in a dose- and time-dependent manner after exposure to amyloid-β(1-42) oligomers...
2016: American Journal of Translational Research
Kimika Arakawa, Ai Ibaraki, Yuki Kawamoto, Minako Inoue, Emi Oishi, Mitsuhiro Tominaga, Takuya Tsuchihashi
OBJECTIVE: To investigate the average and variability in urinary salt excretion in treated hypertensive outpatients during several years (median follow-up is 2 years). DESIGN AND METHOD: In our previous research, the subjects were 200 hypertensive patients who underwent at least three measurement of USALT from Sep 2012 to Mar 2013. We extended the follow-up period until Aug 2015 and the subjects were 68 hypertensive patients who were measured USALT 10 times over (65...
September 2016: Journal of Hypertension
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