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Cardiovascular Diabetology

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https://www.readbyqxmd.com/read/29343271/p66shc-gene-expression-in-peripheral-blood-mononuclear-cells-and-progression-of-diabetic-complications
#1
Gian Paolo Fadini, Mattia Albiero, Benedetta Maria Bonora, Nicol Poncina, Saula Vigili de Kreutzenberg, Angelo Avogaro
BACKGROUND: The risk of diabetic complications is modified by genetic and epigenetic factors. p66Shc drives the hyperglycaemic cell damage and its deletion prevents experimental diabetic complications. We herein tested whether p66Shc expression in peripheral blood mononuclear cells (PBMCs) predicts adverse outcomes in people with diabetes. METHODS: In a cohort of 100 patients with diabetes (16 type 1 and 84 type 2), we quantified baseline p66Shc expression in PBMCs by quantitative PCR...
January 17, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29343259/influence-of-apocynin-on-cardiac-remodeling-in-rats-with-streptozotocin-induced-diabetes-mellitus
#2
R Gimenes, C Gimenes, C M Rosa, N P Xavier, D H S Campos, A A H Fernandes, M D M Cezar, G N Guirado, L U Pagan, I D Chaer, D C Fernandes, F R Laurindo, A C Cicogna, M P Okoshi, K Okoshi
BACKGROUND: Increased reactive oxygen species (ROS) generation in diabetes mellitus (DM) is an important mechanism leading to diabetic cardiomyopathy. Apocynin, a drug isolated from the herb Picrorhiza kurroa, is considered an antioxidant agent by inhibiting NADPH oxidase activity and improving ROS scavenging. This study analyzed the influence of apocynin on cardiac remodeling in diabetic rats. METHODS: Six-month-old male Wistar rats were assigned into 4 groups: control (CTL, n = 15), control + apocynin (CTL + APO, n = 20), diabetes (DM, n = 20), and diabetes + apocynin (DM + APO, n = 20)...
January 17, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29338775/comparison-of-speckle-tracking-echocardiography-with-invasive-hemodynamics-for-the-detection-of-characteristic-cardiac-dysfunction-in-type-1-and-type-2-diabetic-rat-models
#3
Csaba Mátyás, Attila Kovács, Balázs Tamás Németh, Attila Oláh, Szilveszter Braun, Márton Tokodi, Bálint András Barta, Kálmán Benke, Mihály Ruppert, Bálint Károly Lakatos, Béla Merkely, Tamás Radovits
BACKGROUND: Measurement of systolic and diastolic function in animal models is challenging by conventional non-invasive methods. Therefore, we aimed at comparing speckle-tracking echocardiography (STE)-derived parameters to the indices of left ventricular (LV) pressure-volume (PV) analysis to detect cardiac dysfunction in rat models of type-1 (T1DM) and type-2 (T2DM) diabetes mellitus. METHODS: Rat models of T1DM (induced by 60 mg/kg streptozotocin, n = 8) and T2DM (32-week-old Zucker Diabetic Fatty rats, n = 7) and corresponding control animals (n = 5 and n = 8, respectively) were compared...
January 16, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29338727/mendelian-randomization-analysis-to-assess-a-causal-effect-of-haptoglobin-on-macroangiopathy-in-chinese-type-2-diabetes-patients
#4
Shiyun Wang, Jie Wang, Rong Zhang, Tao Wang, Dandan Yan, Zhen He, Feng Jiang, Cheng Hu, Weiping Jia
BACKGROUND: Haptoglobin (Hp) functions as an antioxidant by binding with haemoglobin. We investigated whether serum Hp has a causal effect on macroangiopathy via Mendelian randomization (MR) analysis with common variants of the Hp gene in Chinese patients with type 2 diabetes. METHODS: A total of 5687 type 2 diabetes patients were recruited and genotyped for the Hp gene. Clinical features and vascular imaging tests were applied to diagnose macroangiopathy. The association between common Hp genotypes and macroangiopathy was analyzed in the whole population...
January 16, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29325562/increased-epicardial-adipose-tissue-thickness-is-a-predictor-of-new-onset-diabetes-mellitus-in-patients-with-coronary-artery-disease-treated-with-high-intensity-statins
#5
Jeehoon Kang, Young-Chan Kim, Jin Joo Park, Sehun Kim, Si-Hyuck Kang, Young Jin Cho, Yeonyee E Yoon, Il-Young Oh, Chang-Hwan Yoon, Jung-Won Suh, Young-Seok Cho, Tae-Jin Youn, In-Ho Chae, Dong-Ju Choi
BACKGROUND: Statins are widely used for lipid lowering in patients with coronary artery disease (CAD), but increasing evidence indicates an association between statin use and new-onset of diabetes mellitus (NODM). Epicardial adipose tissue (EAT) refers to the visceral fat surrounding the heart, which is associated with metabolic diseases. We sought to determine the association between EAT thickness and NODM in CAD patients treated with high-intensity statins. METHODS: We conducted a retrospective medical record review of CAD patients treated with high-intensity statins for at least 6 months after percutaneous coronary intervention performed between January 2009 and June 2013 at Seoul National University Bundang Hospital...
January 11, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29325553/sitagliptin-improved-glucose-assimilation-in-detriment-of-fatty-acid-utilization-in-experimental-type-ii-diabetes-role-of-glp-1-isoforms-in-glut4-receptor-trafficking
#6
E Ramírez, B Picatoste, A González-Bris, M Oteo, F Cruz, A Caro-Vadillo, J Egido, J Tuñón, M A Morcillo, Ó Lorenzo
BACKGROUND: The distribution of glucose and fatty-acid transporters in the heart is crucial for energy consecution and myocardial function. In this sense, the glucagon-like peptide-1 (GLP-1) enhancer, sitagliptin, improves glucose homeostasis but it could also trigger direct cardioprotective actions, including regulation of energy substrate utilization. METHODS: Type-II diabetic GK (Goto-Kakizaki), sitagliptin-treated GK (10 mg/kg/day) and wistar rats (n = 10, each) underwent echocardiographic evaluation, and positron emission tomography scanning for [18F]-2-fluoro-2-deoxy-D-glucose (18FDG)...
January 11, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29325551/relationship-between-cardiac-microvascular-dysfunction-measured-with-82rubidium-pet-and-albuminuria-in-patients-with-diabetes-mellitus
#7
Louis Potier, Renata Chequer, Ronan Roussel, Kamel Mohammedi, Souad Sismail, Agnès Hartemann, Chloé Amouyal, Michel Marre, Dominique Le Guludec, Fabien Hyafil
BACKGROUND: Albuminuria is of one the strongest predictors of cardiovascular disease (CVD) in diabetes. Diabetes is associated with cardiac microvascular dysfunction (CMD), a powerful, independent prognostic factor for cardiac mortality. The aim of this study was to evaluate the relationship between CMD and microvascular complications in patients without known CVD. METHODS: In this monocentric study, myocardial flow reserve (MFR) was measured with cardiac 82Rubidium positron emission tomography (Rb-PET) in 311 patients referred to nuclear medicine department of Bichat University Hospital for screening of coronary artery disease from 2012 to 2014...
January 11, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29310647/have-dipeptidyl-peptidase-4-inhibitors-ameliorated-the-vascular-complications-of-type-2-diabetes-in-large-scale-trials-the-potential-confounding-effect-of-stem-cell-chemokines
#8
REVIEW
Milton Packer
Drugs that inhibit dipeptidyl peptidase-4 (DPP-4) are conventionally regarded as incretin-based agents that signal through the glucagon-like peptide-1 (GLP-1) receptor. However, inhibition of DPP-4 also potentiates the stem cell chemokine, stromal cell-derived factor-1 (SDF-1), which can promote inflammation, proliferative responses and neovascularization. In large-scale cardiovascular outcome trials, enhanced GLP-1 signaling has reduced the risk of atherosclerotic ischemic events, potentially because GLP-1 retards the growth and increases the stability of atherosclerotic plaques...
January 8, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29310645/effects-of-6-month-treatment-with-the-glucagon-like-peptide-1-analogue-liraglutide-on-arterial-stiffness-left-ventricular-myocardial-deformation-and-oxidative-stress-in-subjects-with-newly-diagnosed-type-2-diabetes
#9
Vaia Lambadiari, George Pavlidis, Foteini Kousathana, Maria Varoudi, Dimitrios Vlastos, Eirini Maratou, Dimitrios Georgiou, Ioanna Andreadou, John Parissis, Helen Triantafyllidi, John Lekakis, Efstathios Iliodromitis, George Dimitriadis, Ignatios Ikonomidis
BACKGROUND: Incretin-based therapies are used in the treatment of type 2 diabetes mellitus (T2DM) and obesity. We investigated the changes in arterial stiffness and left ventricular (LV) myocardial deformation after 6-month treatment with the GLP-1 analogue liraglutide in subjects with newly diagnosed T2DM. METHODS: We randomized 60 patients with newly diagnosed and treatment-naive T2DM to receive either liraglutide (n = 30) or metformin (n = 30) for 6 months...
January 8, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29301579/linagliptin-and-cardiovascular-outcomes-in-type-2-diabetes-after-acute-coronary-syndrome-or-acute-ischemic-stroke
#10
Yan-Rong Li, Sung-Sheng Tsai, Dong-Yi Chen, Szu-Tah Chen, Jui-Hung Sun, Hung-Yu Chang, Miaw-Jene Liou, Tien-Hsing Chen
BACKGROUND: The cardiovascular safety and efficacy of linagliptin, a dipeptidyl peptidase-4 inhibitor, in patients with type 2 diabetes mellitus (T2DM) after acute coronary syndrome (ACS) or acute ischemic stroke (AIS) are unclear. The aim of our real-world cohort study was to evaluate the cardiovascular outcomes of linagliptin in patients with T2DM after ACS or AIS. METHODS: An open observational noncrossover retrospective cohort study was conducted between June 1, 2012 and December 31, 2013 utilizing Taiwan National Health Insurance Research Database...
January 4, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29301532/body-mass-index-type-2-diabetes-and-left-ventricular-function
#11
EDITORIAL
Katrine Dina Musaeus, Manan Pareek
A recent study found that among individuals with a preserved left ventricular ejection fraction ≥ 55%, global longitudinal strain was significantly lower in overweight patients (i.e., body mass index ≥ 25 kg/m2) with, but not in those without, type 2 diabetes mellitus. These results contrast previous observations of body mass index as a significant predictor of incident diastolic dysfunction and increased left ventricular mass index among subjects without prevalent diabetes. We discuss potential explanations for the observed discrepancies and general difficulties associated with cardiovascular risk assessment based on body mass index and related metabolic factors...
January 4, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29301531/evaluation-of-the-impact-of-glycemic-status-on-the-progression-of-coronary-artery-calcification-in-asymptomatic-individuals
#12
Ki-Bum Won, Donghee Han, Ji Hyun Lee, Sang-Eun Lee, Ji Min Sung, Su-Yeon Choi, Eun Ju Chun, Sung Hak Park, Hae-Won Han, Jidong Sung, Hae Ok Jung, Hyuk-Jae Chang
BACKGROUND: Data on the influence of glycemic status on the progression of coronary calcification, an important marker for future adverse cardiovascular events, are limited. METHODS: Data from the Korea Initiatives on Coronary Artery Calcification (KOICA) registry on 12,441 asymptomatic Korean adults (52 ± 9 years, 84.2% males) without previous history of coronary artery disease and stroke, who underwent serial coronary artery calcification (CAC) screening examinations, were included in this study...
January 4, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29301529/increased-myocardial-extracellular-volume-assessed-by-cardiovascular-magnetic-resonance-t1-mapping-and-its-determinants-in-type-2-diabetes-mellitus-patients-with-normal-myocardial-systolic-strain
#13
Yukun Cao, Wenjuan Zeng, Yue Cui, Xiangchuang Kong, Miao Wang, Jie Yu, Shan Zhang, Jing Song, Xu Yan, Andreas Greiser, Heshui Shi
BACKGROUND: Cardiac magnetic resonance (CMR) T1 mapping and tissue-tracking strain analysis are useful quantitative techniques that can characterize myocardial tissue and mechanical alterations, respectively, in patients with early diabetic cardiomyopathy. The purpose of this study was to assess the left ventricular myocardial T1 value, extracellular volume fraction (ECV), and systolic strain in asymptomatic patients with type 2 diabetes mellitus (T2DM) and their underlying relationships with clinical parameters...
January 4, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29301528/asymmetric-dimethylarginine-adma-symmetric-dimethylarginine-sdma-and-homoarginine-harg-the-adma-sdma-and-harg-paradoxes
#14
EDITORIAL
Dimitrios Tsikas, Alexander Bollenbach, Erik Hanff, Arslan Arinc Kayacelebi
NG-Methylation of L-arginine (Arg) residues in certain proteins by protein arginine methyltransferases and subsequent proteolysis yields NG-monomethyl-L-arginine (MMA), NG,NG-dimethyl-L-arginine (asymmetric dimethylarginine, ADMA) and NG,N'G-dimethyl-L-arginine (symmetric dimethylarginine, SDMA). Biological MMA, ADMA and SDMA occur as free acids in the nM-range and as residues of proteins of largely unknown quantity. Arginine:glycine amidinotransferase (AGAT) catalyzes the synthesis of L-homoarginine (hArg) from free Arg and L-lysine...
January 4, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29301520/sglt-2-inhibition-with-dapagliflozin-reduces-tissue-sodium-content-a-randomised-controlled-trial
#15
M V Karg, A Bosch, D Kannenkeril, K Striepe, C Ott, M P Schneider, F Boemke-Zelch, P Linz, A M Nagel, J Titze, M Uder, R E Schmieder
BACKGROUND AND AIMS: Sodium tissue content by 23Na magnetic resonance imaging (Na-MRI) has been validated in experimental and human studies. SGLT-2 inhibition blocks the reabsorption of glucose and of sodium in the proximal tubular cells in a 1:1 fashion. We hypothesized that SGLT-2 inhibition in patients with type 2 diabetes characterized by sodium retention leads to decreased tissue sodium content due to its pharmacological action. MATERIALS AND METHODS: In a prospective double blind, placebo controlled, cross-over trial 59 patients (61 ± 7...
January 4, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29301516/the-effect-of-dapagliflozin-treatment-on-epicardial-adipose-tissue-volume
#16
Takao Sato, Yoshifusa Aizawa, Sho Yuasa, Shohei Kishi, Koichi Fuse, Satoshi Fujita, Yoshio Ikeda, Hitoshi Kitazawa, Minoru Takahashi, Masahito Sato, Masaaki Okabe
BACKGROUND: Glycosuria produced by sodium-glucose co-transporter-2 (SGLT-2) inhibitors is associated with weight loss. SGLT-2 inhibitors reportedly might reduce the occurrence of cardiovascular events. Epicardial adipose tissue (EAT) is a pathogenic fat depot that may be associated with coronary atherosclerosis. The present study evaluated the relationship between an SGLT-2 inhibitor (dapagliflozin) and EAT volume. METHODS: In 40 diabetes mellitus patients with coronary artery disease (10 women and 30 men; mean age of all 40 patients was 67...
January 4, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29258504/dipeptidyl-peptidase-4-inhibitor-decreases-the-risk-of-atrial-fibrillation-in-patients-with-type-2-diabetes-a-nationwide-cohort-study-in-taiwan
#17
Chia-Yu Chang, Yung-Hsin Yeh, Yi-Hsin Chan, Jia-Rou Liu, Shang-Hung Chang, Hsin-Fu Lee, Lung-Sheng Wu, Kun-Chi Yen, Chi-Tai Kuo, Lai-Chu See
BACKGROUND: Whether dipeptidyl peptidase-4 inhibitor (DPP4i) is associated with a lower risk of new-onset atrial fibrillation (AF) in patients with diabetes remains unclear. This study aimed to evaluate the risk of AF associated with use of DPP4i among a longitudinal cohort of patients with diabetes. METHODS: Over a 3-year period, 480,000 patients with diabetes were analyzed utilizing Taiwan's National Health Insurance Research Database and 90,880 patients taking metformin as first-line therapy were enrolled...
December 19, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29258502/impaired-ventricular-filling-limits-cardiac-reserve-during-submaximal-exercise-in-people-with-type-2-diabetes
#18
Genevieve A Wilson, Gerard T Wilkins, Jim D Cotter, Regis R Lamberts, Sudish Lal, James C Baldi
BACKGROUND: Attenuated increases in ventricular stroke volume during exercise are common in type 2 diabetes and contribute to reduced aerobic capacity. The purpose of this study was to determine whether impaired ventricular filling or reduced systolic ejection were responsible for the attenuated stroke volume reserve in people with uncomplicated type 2 diabetes. METHODS: Peak aerobic capacity and total blood volume were measured in 17 people with diabetes and 16 non-diabetic controls with no evidence of cardiovascular disease...
December 19, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29246151/suboptimal-control-of-lipid-levels-results-from-the-non-interventional-centralized-pan-russian-survey-of-the-undertreatment-of-hypercholesterolemia-ii-cepheus-ii
#19
Sergey Boytsov, Natalia Logunova, Yunona Khomitskaya
BACKGROUND: Elevated levels of low-density lipoprotein cholesterol (LDL-C) and glycosylated hemoglobin (HbA1c) are risk factors for cardiovascular complications. This study evaluated LDL-C goal attainment in Russian clinical practice among patients with moderate to very high cardiovascular risk. The study also assessed LDL-C goal attainment in patients prescribed lipid-lowering therapy for primary compared with secondary cardiovascular disease (CVD) prevention, predictors of LDL-C goal attainment, and the proportion of individuals with diabetes mellitus who achieved HbA1c < 7%...
December 16, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29233143/relative-hyperglycemia-is-associated-with-complications-following-an-acute-myocardial-infarction-a-post-hoc-analysis-of-hi-5-data
#20
Tien F Lee, Morton G Burt, Leonie K Heilbronn, Arduino A Mangoni, Vincent W Wong, Mark McLean, N Wah Cheung
BACKGROUND: Hyperglycemia is associated with increased morbidity and mortality in patients with an acute myocardial infarction (AMI). We evaluated whether complications after AMI are associated with absolute or relative glycemia. METHODS: A total of 192 patients with AMI were randomized to intensive or conventional insulin therapy. Absolute glycemia was defined as mean blood glucose level (BGL) during the first 24 h following randomization. Relative glycemia was defined by the stress hyperglycaemia ratio (SHR), calculated as mean BGL divided by average glucose concentration over the prior 3 months estimated from glycosylated haemoglobin...
December 12, 2017: Cardiovascular Diabetology
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