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Diabetologia

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https://www.readbyqxmd.com/read/28102434/low-muscle-mass-and-risk-of-type-2-diabetes-in-middle-aged-and-older-adults-findings-from-the-koges
#1
Jang Won Son, Seong Su Lee, Sung Rae Kim, Soon Jib Yoo, Bong Yun Cha, Ho Young Son, Nam H Cho
AIMS/HYPOTHESIS: Asians have a propensity to develop type 2 diabetes with a lower BMI than Western populations. This discrepancy may be due to differences in body fat and muscle mass for a given BMI. However, unlike adiposity, it is unclear whether muscle mass affects the risk of type 2 diabetes in Asian populations. METHODS: We conducted a 2-yearly prospective assessment of 6895 participants who were free of diabetes at the baseline examination as part of the Korean Genome Epidemiology Study...
January 19, 2017: Diabetologia
https://www.readbyqxmd.com/read/28083635/inflammation-and-n-formyl-peptide-receptors-mediate-the-angiogenic-activity-of-human-vitreous-humour-in-proliferative-diabetic-retinopathy
#2
Sara Rezzola, Michela Corsini, Paola Chiodelli, Anna Cancarini, Imtiaz M Nawaz, Daniela Coltrini, Stefania Mitola, Roberto Ronca, Mirella Belleri, Liliana Lista, Dario Rusciano, Mario De Rosa, Vincenzo Pavone, Francesco Semeraro, Marco Presta
AIMS/HYPOTHESIS: Angiogenesis and inflammation characterise proliferative diabetic retinopathy (PDR), a major complication of diabetes mellitus. However, the impact of inflammation on the pathogenesis of PDR neovascularisation has not been elucidated. Here, we assessed the capacity of PDR vitreous fluid to induce pro-angiogenic/proinflammatory responses in endothelium and the contribution of the inflammation-related pattern recognition N-formyl peptide receptors (FPRs) in mediating these responses...
January 13, 2017: Diabetologia
https://www.readbyqxmd.com/read/28078386/early-differences-in-islets-from-prediabetic-nod-mice-combined-microarray-and-proteomic-analysis
#3
Inne Crèvecoeur, Valborg Gudmundsdottir, Saurabh Vig, Fernanda Marques Câmara Sodré, Wannes D'Hertog, Ana Carolina Fierro, Leentje Van Lommel, Conny Gysemans, Kathleen Marchal, Etienne Waelkens, Frans Schuit, Søren Brunak, Lut Overbergh, Chantal Mathieu
AIMS/HYPOTHESIS: Type 1 diabetes is an endocrine disease where a long preclinical phase, characterised by immune cell infiltration in the islets of Langerhans, precedes elevated blood glucose levels and disease onset. Although several studies have investigated the role of the immune system in this process of insulitis, the importance of the beta cells themselves in the initiation of type 1 diabetes is less well understood. The aim of this study was to investigate intrinsic differences present in the islets from diabetes-prone NOD mice before the onset of insulitis...
January 12, 2017: Diabetologia
https://www.readbyqxmd.com/read/28078385/glucose-and-fatty-acids-synergistically-and-reversibly-promote-beta-cell-proliferation-in-rats
#4
Valentine S Moullé, Kevin Vivot, Caroline Tremblay, Bader Zarrouki, Julien Ghislain, Vincent Poitout
AIMS/HYPOTHESIS: The mechanisms underlying pancreatic islet mass expansion have attracted considerable interest as potential therapeutic targets to prevent or delay the onset of type 2 diabetes. While several factors promoting beta cell proliferation have been identified, in the context of nutrient excess the roles of glucose or NEFA in relation to insulin resistance remain unclear. Here we tested the hypothesis that glucose and NEFA synergistically and reversibly promote beta cell proliferation in the context of nutrient-induced insulin resistance...
January 11, 2017: Diabetologia
https://www.readbyqxmd.com/read/28074254/the-cardiovascular-benefits-of-empagliflozin-sglt2-dependent-and-independent-effects
#5
EDITORIAL
Roberto Vettor, Silvio E Inzucchi, Paola Fioretto
No abstract text is available yet for this article.
January 11, 2017: Diabetologia
https://www.readbyqxmd.com/read/28074253/c-abl-inhibition-mitigates-diet-induced-obesity-through-improving-insulin-sensitivity-of-subcutaneous-fat-in-mice
#6
Rong Wu, Jian-Guang Sun, Ji-Qiu Wang, Binhua Li, Qingsong Liu, Guang Ning, Wanzhu Jin, Zengqiang Yuan
AIMS/HYPOTHESIS: High-energy diets are among the main causes of the global epidemic of metabolic disorders, including obesity and type 2 diabetes. The mechanisms of high-energy-diet-induced metabolic disorders are complex and largely unknown. The non-receptor tyrosine kinase c-Abl plays an important role in adipogenesis in vitro but its role in vivo in the regulation of metabolism is still elusive. Hence, we sought to address the role of c-Abl in diet-induced obesity and obesity-associated insulin resistance...
January 10, 2017: Diabetologia
https://www.readbyqxmd.com/read/28070616/re-addressing-the-2013-consensus-guidelines-for-the-diagnosis-of-insulitis-in-human-type-1-diabetes-is-change-necessary
#7
LETTER
Martha L Campbell-Thompson, Mark A Atkinson, Alexandra E Butler, Ben N Giepmans, Matthias G von Herrath, Heikki Hyöty, Thomas W Kay, Noel G Morgan, Alvin C Powers, Alberto Pugliese, Sarah J Richardson, Peter A In't Veld
No abstract text is available yet for this article.
January 9, 2017: Diabetologia
https://www.readbyqxmd.com/read/28070615/detection-of-enteroviruses-in-stools-precedes-islet-autoimmunity-by-several-months-possible-evidence-for-slowly-operating-mechanisms-in-virus-induced-autoimmunity
#8
Hanna Honkanen, Sami Oikarinen, Noora Nurminen, Olli H Laitinen, Heini Huhtala, Jussi Lehtonen, Tanja Ruokoranta, Minna M Hankaniemi, Valérie Lecouturier, Jeffrey W Almond, Sisko Tauriainen, Olli Simell, Jorma Ilonen, Riitta Veijola, Hanna Viskari, Mikael Knip, Heikki Hyöty
AIMS/HYPOTHESIS: This case-control study was nested in a prospective birth cohort to evaluate whether the presence of enteroviruses in stools was associated with the appearance of islet autoimmunity in the Type 1 Diabetes Prediction and Prevention study in Finland. METHODS: Altogether, 1673 longitudinal stool samples from 129 case children who turned positive for multiple islet autoantibodies and 3108 stool samples from 282 matched control children were screened for the presence of enterovirus RNA using RT-PCR...
January 9, 2017: Diabetologia
https://www.readbyqxmd.com/read/28064359/season-of-birth-and-the-risk-of-type-2-diabetes-in-adulthood-a-prospective-cohort-study-of-0-5-million-chinese-adults
#9
Jiahui Si, Canqing Yu, Yu Guo, Zheng Bian, Xia Li, Ling Yang, Yiping Chen, Huarong Sun, Bo Yu, Junshi Chen, Zhengming Chen, Jun Lv, Liming Li
AIMS/HYPOTHESIS: Season of birth as a surrogate for potential environmental exposure during fetal development and early postnatal life has shown an inconsistent association with adult type 2 diabetes in white populations living in high-latitude regions. The present study aimed to examine the association between birth seasonality and risk of adult type 2 diabetes in Chinese individuals living across wide regions of low latitude and lower to middle latitude. METHODS: Participants from the China Kadoorie Biobank were enrolled during 2004-2008 and followed up until 31 December 2013...
January 7, 2017: Diabetologia
https://www.readbyqxmd.com/read/28062922/interferon-%C3%AE-mediates-human-beta-cell-hla-class-i-overexpression-endoplasmic-reticulum-stress-and-apoptosis-three-hallmarks-of-early-human-type-1-diabetes
#10
Laura Marroqui, Reinaldo S Dos Santos, Anne Op de Beeck, Alexandra Coomans de Brachène, Lorella Marselli, Piero Marchetti, Decio L Eizirik
AIMS/HYPOTHESIS: Three hallmarks of the pancreatic islets in early human type 1 diabetes are overexpression of HLA class I, endoplasmic reticulum (ER) stress and beta cell apoptosis. The mediators of these phenomena remain to be defined. The type I interferon IFNα is expressed in human islets from type 1 diabetes patients and mediates HLA class I overexpression. We presently evaluated the mechanisms involved in IFNα-induced HLA class I expression in human beta cells and determined whether this cytokine contributes to ER stress and apoptosis...
January 6, 2017: Diabetologia
https://www.readbyqxmd.com/read/28062921/targeted-deletion-of-traf2-allows-immunosuppression-free-islet-allograft-survival-in-mice
#11
Jeanette E Villanueva, Stacey N Walters, Mitsuru Saito, Elisabeth K Malle, Nathan W Zammit, Katherine A Watson, Robert Brink, Nicole L La Gruta, Stephen I Alexander, Shane T Grey
AIMS/HYPOTHESIS: Administration of anti-CD40 ligand (CD40L) antibodies has been reported to allow long-term islet allograft survival in non-human primates without the need for exogenous immunosuppression. However, the use of anti-CD40L antibodies was associated with thromboembolic complications. Targeting downstream intracellular components shared between CD40 and other TNF family co-stimulatory molecules could bypass these complications. TNF receptor associated factor 2 (TRAF2) integrates multiple TNF receptor family signalling pathways that are critical for T cell activation and may be a central node of alloimmune responses...
January 6, 2017: Diabetologia
https://www.readbyqxmd.com/read/28054097/prolonged-sitting-may-increase-diabetes-risk-in-physically-inactive-individuals-an-11%C3%A2-year-follow-up-of-the-hunt-study-norway
#12
Bjørn O Åsvold, Kristian Midthjell, Steinar Krokstad, Vegar Rangul, Adrian Bauman
AIMS/HYPOTHESIS: We examined the association between sitting time and diabetes incidence, overall and by strata of leisure-time physical activity and BMI. METHODS: We followed 28,051 adult participants of the Nord-Trøndelag Health Study (the HUNT Study), a population-based study, for diabetes incidence from 1995-1997 to 2006-2008 and estimated HRs of any diabetes by categories of self-reported total daily sitting time at baseline. RESULTS: Of 28,051 participants, 1253 (4...
January 4, 2017: Diabetologia
https://www.readbyqxmd.com/read/28025677/pcsk9-inhibition-the-dawn-of-a-new-age-in-cholesterol-lowering
#13
REVIEW
David Preiss, Marion Mafham
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a circulating enzyme of hepatic origin that plays a key role in LDL receptor turnover. Genetic studies have confirmed that individuals with gain-of-function PCSK9 mutations have increased PCSK9 activity, elevated LDL-cholesterol levels and a severe form of familial hypercholesterolaemia. Those with variants leading to reduced PCSK9 have lower LDL-cholesterol levels and a reduced risk of coronary heart disease, and this has led to the development of various strategies aimed at reducing circulating PCSK9...
December 26, 2016: Diabetologia
https://www.readbyqxmd.com/read/28013341/emerging-role-of-intestinal-microbiota-and-microbial-metabolites-in-metabolic-control
#14
EDITORIAL
Hilde Herrema, Richard G IJzerman, Max Nieuwdorp
The role of the intestinal microbiota and microbial metabolites in the maintenance of host health and development of metabolic disease has gained significant attention over the past decade. Mechanistic insight revealing causality, however, is scarce. Work by Ussar and co-workers demonstrates that a complex interaction between microbiota, host genetics and environmental factors is involved in metabolic disease development in mice. In addition, Perry and co-workers show that the microbial metabolite acetate augments insulin resistance in rats...
December 24, 2016: Diabetologia
https://www.readbyqxmd.com/read/28013340/frequent-and-intensive-physical-activity-reduces-risk-of-cardiovascular-events-in-type-1-diabetes
#15
Heidi Tikkanen-Dolenc, Johan Wadén, Carol Forsblom, Valma Harjutsalo, Lena M Thorn, Markku Saraheimo, Nina Elonen, Milla Rosengård-Bärlund, Daniel Gordin, Heikki O Tikkanen, Per-Henrik Groop
AIMS/HYPOTHESIS: Cardiovascular disease (CVD) is the most common cause of premature death and disability among patients with type 1 diabetes. Diabetic nephropathy accounts for the increased cardiovascular morbidity and mortality of these patients. We recently showed that the intensity of exercise predicts the incidence and progression of diabetic nephropathy in patients with type 1 diabetes. Little is known about the relationship between physical activity and CVD. Therefore, we studied how physical activity affects the risk of CVD events in patients with type 1 diabetes...
December 24, 2016: Diabetologia
https://www.readbyqxmd.com/read/28013339/genetics-of-obesity-can-an-old-dog-teach-us-new-tricks
#16
REVIEW
Giles S H Yeo
At one level, obesity is clearly a problem of simple physics, a result of eating too much and not expending enough energy. The more complex question, however, is why do some people eat more than others? Studies of human and mouse genetics over the past two decades have uncovered a number of pathways within the brain that play a key role in the control of food intake. A prime example is the leptin-melanocortin pathway, which we now know greatly contributes to mammalian appetitive behaviour. However, genetic disruption of this pathway remains rare and does not represent the major burden of the disease that is carried by those of us with 'common obesity'...
December 24, 2016: Diabetologia
https://www.readbyqxmd.com/read/28011992/appl1-prevents-pancreatic-beta-cell-death-and-inflammation-by-dampening-nf%C3%AE%C2%BAb-activation-in-a-mouse-model-of-type-1-diabetes
#17
Xue Jiang, Yawen Zhou, Kelvin K L Wu, Zhanrui Chen, Aimin Xu, Kenneth K Y Cheng
AIMS/HYPOTHESIS: Beta cell inflammation and demise is a feature of type 1 diabetes. The insulin-sensitising molecule 'adaptor protein, phosphotyrosine interacting with PH domain and leucine zipper 1' (APPL1), which contains an NH2-terminal Bin/Amphiphysin/Rvs domain, a central pleckstrin homology domain and a COOH-terminal phosphotyrosine-binding domain, has been shown to modulate inflammatory response in various cell types but its role in regulating beta cell mass and inflammation in type 1 diabetes remains unknown...
December 23, 2016: Diabetologia
https://www.readbyqxmd.com/read/28004151/reciprocal-regulation-of-mtor-complexes-in-pancreatic-islets-from-humans-with-type-2-diabetes
#18
Ting Yuan, Sahar Rafizadeh, Kanaka Durga Devi Gorrepati, Blaz Lupse, Jose Oberholzer, Kathrin Maedler, Amin Ardestani
AIMS/HYPOTHESIS: Mechanistic target of rapamycin complex 1 (mTORC1) is a master regulator of nutritional status at the cellular and organismic level. While mTORC1 mediates beta cell growth and expansion, its hyperactivation has been observed in pancreatic islets from animal models of type 2 diabetes and leads to beta cell loss. We sought to determine whether such mTORC1 activation occurs in humans with type 2 diabetes or in metabolically stressed human islets and whether mTORC1 blockade can restore beta cell function of diabetic islets...
December 21, 2016: Diabetologia
https://www.readbyqxmd.com/read/28004150/assessment-of-urinary-microparticles-in-normotensive-patients-with-type-1-diabetes
#19
Yuliya Lytvyn, Fengxia Xiao, Christopher R J Kennedy, Bruce A Perkins, Heather N Reich, James W Scholey, David Z Cherney, Dylan Burger
AIMS/HYPOTHESIS: Assessment of urinary extracellular vesicles including exosomes and microparticles (MPs) is an emerging approach for non-invasive detection of renal injury. We have previously reported that podocyte-derived MPs are increased in diabetic mice in advance of albuminuria. Here, we hypothesised that type 1 diabetes and acute hyperglycaemia would increase urinary podocyte MP levels in uncomplicated diabetes. METHODS: In this post hoc exploratory analysis, we examined archived urine samples from normoalbuminuric patients with uncomplicated type 1 diabetes studied under clamped euglycaemia and hyperglycaemia and compared with healthy controls...
December 21, 2016: Diabetologia
https://www.readbyqxmd.com/read/28004149/the-heritable-basis-of-gene-environment-interactions-in-cardiometabolic-traits
#20
Alaitz Poveda, Yan Chen, Anders Brändström, Elisabeth Engberg, Göran Hallmans, Ingegerd Johansson, Frida Renström, Azra Kurbasic, Paul W Franks
AIMS/HYPOTHESIS: Little is known about the heritable basis of gene-environment interactions in humans. We therefore screened multiple cardiometabolic traits to assess the probability that they are influenced by genotype-environment interactions. METHODS: Fourteen established environmental risk exposures and 11 cardiometabolic traits were analysed in the VIKING study, a cohort of 16,430 Swedish adults from 1682 extended pedigrees with available detailed genealogical, phenotypic and demographic information, using a maximum likelihood variance decomposition method in Sequential Oligogenic Linkage Analysis Routines software...
December 21, 2016: Diabetologia
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