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endothelial function type diabetes

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https://www.readbyqxmd.com/read/29125983/functional-differences-between-healthy-and-diabetic-endothelial-cells-on-topographical-cues
#1
Marie F A Cutiongco, Bryan M X Chua, Dawn J H Neo, Muhammad Rizwan, Evelyn K F Yim
The endothelial lining of blood vessels is severely affected in type II diabetes. Yet, there is still a paucity on the use of diabetic endothelial cells for study and assessment of implantable devices targeting vascular disease. This critically impairs our ability to determine appropriate topographical cues to be included in implantable devices that can be used to maintain or improve endothelial cell function in vivo. Here, the functional responses of healthy and diabetic human coronary arterial endothelial cells were studied and observed to differ depending on topography...
October 25, 2017: Biomaterials
https://www.readbyqxmd.com/read/29124482/apociii-as-a-cardiovascular-risk-factor-and-modulation-by-the-novel-lipid-lowering-agent-volanesorsen
#2
REVIEW
Natalia A Rocha, Cara East, Jun Zhang, Peter A McCullough
PURPOSE OF REVIEW: Apolipoprotein CIII (ApoCIII) is now recognized as a key regulator in severe hypertriglyceridemia, chylomicronemia, and conditions of triglyceride-rich lipoprotein (TRL) remnant excess due to its inhibition of lipoprotein lipase (LPL) and hepatic lipase, leading to decreased hepatic reuptake of TRLs, as well as enhanced synthesis and secretion of VLDL from the liver. ApoCIII gain-of-function mutations are associated with atherosclerosis and coronary heart disease (CHD), and contribute to the development of cardiometabolic syndrome, hypertriglyceridemia, and type 2 diabetes mellitus...
November 9, 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29116404/review-of-cardiometabolic-effects-of-prescription-omega-3-fatty-acids
#3
REVIEW
Megan F Burke, Frances M Burke, Daniel E Soffer
PURPOSE OF REVIEW: Populations with significant dietary fish intake tend to have lower cardiovascular (CV) risk and demonstrable physiologic differences including lower lipid/lipoprotein levels and other direct and indirect effects on the arterial wall and inhibiting factors that promote atherosclerosis. Treatment with high doses of pharmacologic-grade omega-3 fatty acid (n-3FA) supplements achieves significant reductions in triglycerides (TG), non-high-density lipoprotein- (non-HDL-) and TG-rich lipoprotein- (TRL-) cholesterol levels...
November 7, 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29111541/lipoxin-a4-improves-erectile-dysfunction-in-rats-with-type-i-diabetes-by-inhibiting-oxidative-stress-and-corporal-fibrosis
#4
Kai Cui, Zhe Tang, Chuan-Chang Li, Tao Wang, Ke Rao, Shao-Gang Wang, Ji-Hong Liu, Zhong Chen
Previous studies have shown that oxidative stress and corporal fibrosis in penile tissues of rats were key pathological factors of erectile dysfunction induced by diabetic mellitus (DMED). Lipoxin A4 (LXA4) was reported to inhibit oxidative stress and fibrosis diseases, while whether it could exert a protective role on erectile function was not clear. Type I diabetic mellitus (DM) was induced in thirty male 10-week-old Sprague-Dawley rats using streptozotocin. Ten weeks later, twenty-two rats with DMED confirmed by an apomorphine test were divided into two groups: the DMED group (n = 11) and the DMED + LXA4 group (n = 11; LXA4 injection daily for 4 weeks)...
November 7, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29096622/tissue-engineered-smooth-muscle-cell-and-endothelial-progenitor-cell-bi-level-cell-sheets-prevent-progression-of-cardiac-dysfunction-microvascular-dysfunction-and-interstitial-fibrosis-in-a-rodent-model-of-type-1-diabetes-induced-cardiomyopathy
#5
Masashi Kawamura, Michael J Paulsen, Andrew B Goldstone, Yasuhiro Shudo, Hanjay Wang, Amanda N Steele, Lyndsay M Stapleton, Bryan B Edwards, Anahita Eskandari, Vi N Truong, Kevin J Jaatinen, Arnar B Ingason, Shigeru Miyagawa, Yoshiki Sawa, Y Joseph Woo
BACKGROUND: Diabetes mellitus is a risk factor for coronary artery disease and diabetic cardiomyopathy, and adversely impacts outcomes following coronary artery bypass grafting. Current treatments focus on macro-revascularization and neglect the microvascular disease typical of diabetes mellitus-induced cardiomyopathy (DMCM). We hypothesized that engineered smooth muscle cell (SMC)-endothelial progenitor cell (EPC) bi-level cell sheets could improve ventricular dysfunction in DMCM. METHODS: Primary mesenchymal stem cells (MSCs) and EPCs were isolated from the bone marrow of Wistar rats, and MSCs were differentiated into SMCs by culturing on a fibronectin-coated dish...
November 2, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29095085/vascular-endothelial-growth-factor-b-impact-on-physiology-and-pathology
#6
Hongyu Zhu, Mingming Gao, Xiangdong Gao, Yue Tong
Angiogenesis plays an important role in controlling tissue development and maintaining normal tissue function. Dysregulated angiogenesis is implicated in the pathogenesis of a variety of diseases, particularly diabetes, cancers, and neurodegenerative disorders. As the major regulator of angiogenesis, the vascular endothelial growth factor (VEGF) family is composed of a group of crucial members including VEGF-B. While the physiological roles of VEGF-B remain debatable, increasing evidence suggests that this protein is able to protect certain type of cells from apoptosis under pathological conditions...
November 2, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/29080294/microparticles-carrying-peroxisome-proliferator-activated-receptor-alpha-restore-the-reduced-differentiation-and-functionality-of-bone-marrow-derived-cells-induced-by-high-fat-diet
#7
Luisa Vergori, Emilie Lauret, Raffaella Soleti, Ramaroson Andriantsitohaina, M Carmen Martinez
Metabolic pathologies such as diabetes and obesity are associated with decreased level of circulating and bone marrow (BM)-derived endothelial progenitor cells (EPCs). It is known that activation of peroxisome proliferator-activated receptor alpha (PPARα) may stimulate cell differentiation. In addition, microparticles (MPs), small membrane vesicles produced by activated and apoptotic cells, are able to reprogram EPCs. Here, we evaluated the role of MPs carrying PPARα on both phenotype and function of progenitor cells from mice fed with a high-fat diet (HFD)...
October 28, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29077770/cardiovascular-risk-factors-as-determinants-of-retinal-and-skin-microvascular-function-the-maastricht-study
#8
Ben M Sörensen, Alfons J H M Houben, Tos T J M Berendschot, Jan S A G Schouten, Abraham A Kroon, Carla J H van der Kallen, Ronald M A Henry, Annemarie Koster, Pieter C Dagnelie, Nicolaas C Schaper, Miranda T Schram, Coen D A Stehouwer
OBJECTIVE: Microvascular dysfunction is an important underlying mechanism of microvascular diseases. Determinants (age, sex, hypertension, dyslipidemia, hyperglycemia, obesity, and smoking) of macrovascular diseases affect large-artery endothelial function. These risk factors also associate with microvascular diseases. We hypothesized that they are also determinants of microvascular (endothelial) function. METHODS: In The Maastricht Study, a type 2 diabetes-enriched population-based cohort study (n = 1991, 51% men, aged 59...
2017: PloS One
https://www.readbyqxmd.com/read/29067740/the-pericytic-phenotype-of-adipose-tissue-derived-stromal-cells-is-promoted-by-notch2
#9
Vincenzo Terlizzi, Matthias Kolibabka, Janette Kay Burgess, Hans Peter Hammes, Martin Conrad Harmsen
Long-term diabetes leads to macrovascular and microvascular complication. In diabetic retinopathy (DR), persistent hyperglycemia causes permanent loss of retinal pericytes and aberrant proliferation of microvascular endothelial cells (EC). Adipose tissue-derived stromal cells (ASC) may serve to functionally replace retinal pericytes and normalize retinal microvasculature during disease progression. We hypothesized that Notch signaling in ASC underlies regulation and stabilization of dysfunctional retinal microvascular networks such as in DR...
October 25, 2017: Stem Cells
https://www.readbyqxmd.com/read/29063670/irisin-inhibits-high-glucose-induced-endothelial-to-mesenchymal-transition-and-exerts-a-dose-dependent-bidirectional-effect-on-diabetic-cardiomyopathy
#10
Xue Liu, Haroon Mujahid, Bing Rong, Qing-Hua Lu, Wei Zhang, Peng Li, Na Li, Er-Shun Liang, Qi Wang, Dong-Qi Tang, Nai-Lin Li, Xiao-Ping Ji, Yu-Guo Chen, Yu-Xia Zhao, Ming-Xiang Zhang
Emerging evidence indicates that irisin provides beneficial effects in diabetes. However, whether irisin influences the development of diabetic cardiomyopathy (DCM) remains unclear. Therefore, we investigated the potential role and mechanism of action of irisin in diabetes-induced myocardial dysfunction in mice. Type 1 diabetes was induced in mice by injecting streptozotocin, and the diabetic mice were administered recombinant r-irisin (low or high dose: 0.5 or 1.5 μg/g body weight/day, I.P.) or PBS for 16 weeks...
October 23, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29063654/improvements-in-peripheral-vascular-function-with-vitamin-d-treatment-in-deficient-adolescents-with-type-1-diabetes
#11
Livia Deda, Yonatan Yeshahayu, Shama Sud, Meaghan Cuerden, David Zi Cherney, Etienne B Sochett, Farid H Mahmud
BACKGROUND: Vitamin D (VitD) deficiency is prevalent in adolescents with type 1 diabetes (T1D) and is associated with diabetes-related vascular complications in adulthood. The objective of this clinical trial was to assess VitD treatment on endothelial function (EF) and markers of renal inflammation, in this patient group. METHODS: Adolescents with T1D with suboptimal levels of VitD (<37.5 nmol/L) were treated for 12 to 24 weeks with a VitD analog (VitD3 ) at doses of 1000 or 2000 IU daily...
October 23, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/29061124/dapagliflozin-acutely-improves-endothelial-dysfunction-reduces-aortic-stiffness-and-renal-resistive-index-in-type-2-diabetic-patients-a-pilot-study
#12
Anna Solini, Livia Giannini, Marta Seghieri, Edoardo Vitolo, Stefano Taddei, Lorenzo Ghiadoni, Rosa Maria Bruno
BACKGROUND: Sodium-glucose cotransporter-2 inhibitors reduce blood pressure (BP) and renal and cardiovascular events in patients with type 2 diabetes through not fully elucidated mechanisms. Aim of this study was to investigate whether dapagliflozin is able to acutely modify systemic and renal vascular function, as well as putative mechanisms. METHODS: Neuro-hormonal and vascular variables, together with 24 h diuresis, urinary sodium, glucose, isoprostanes and free-water clearance were assessed before and after a 2-day treatment with dapagliflozin 10 mg QD in sixteen type 2 diabetic patients; data were compared with those obtained in ten patients treated with hydrochlorothiazide 12...
October 23, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29052766/decreased-diabetes-risk-over-9%C3%A2-year-after-18-month-oral-l-arginine-treatment-in-middle-aged-subjects-with-impaired-glucose-tolerance-and-metabolic-syndrome-extension-evaluation-of-l-arginine-study
#13
Lucilla D Monti, Elena Galluccio, Valentina Villa, Barbara Fontana, Serena Spadoni, Pier Marco Piatti
PURPOSE: This study aimed to determine whether L-arginine supplementation lasting for 18 months maintained long-lasting effects on diabetes incidence, insulin secretion and sensitivity, oxidative stress, and endothelial function during 108 months among subjects at high risk of developing type 2 diabetes. METHODS: One hundred and forty-four middle-aged subjects with impaired glucose tolerance and metabolic syndrome were randomized in 2006 to an L-arginine supplementation (6...
October 20, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29036612/cd40l-controls-obesity-associated-vascular-inflammation-oxidative-stress-and-endothelial-dysfunction-in-mice-translational-aspects-for-man
#14
Sebastian Steven, Mobin Dib, Michael Hausding, Fatemeh Kashani, Matthias Oelze, Swenja Kröller-Schön, Alina Hanf, Steffen Daub, Siyer Roohani, Yves Gramlich, Esther Lutgens, Eberhard Schulz, Christian Becker, Karl J Lackner, Hartmut Kleinert, Christoph Knosalla, Beate Niesler, Philipp S Wild, Thomas Münzel, Andreas Daiber
Aims: CD40 ligand (CD40L) signaling controls vascular oxidative stress and related dysfunction in angiotensin-II-induced arterial hypertension by regulating vascular immune cell recruitment and platelet activation. Here we investigated the role of CD40L in experimental hyperlipidemia. Methods and Results: Male wild type and CD40L-/- mice (C57BL/6 background) were subjected to high fat diet for sixteen weeks. Weight, cholesterol, HDL and LDL levels, endothelial function (isometric tension recording), oxidative stress (NADPH oxidase expression, dihydroethidium fluorescence) and inflammatory parameters (inducible nitric oxide synthase, interleukin-6 expression) were assessed...
September 26, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29030343/carbohydrate-restriction-with-postmeal-walking-effectively-mitigates-postprandial-hyperglycemia-and-improves-endothelial-function-in-type-2-diabetes
#15
Monique Emily Francois, Etienne Myette-Cote, Tyler Daniel Bammert, Cody Durrer, Helena Neudorf, Christopher A DeSouza, Jonathan Peter Little
Postprandial hyperglycemia has deleterious effects on endothelial function. Restricting carbohydrate intake and postmeal walking have each been shown to reduce postprandial hyperglycemia but their combination and subsequent effects on endothelial function have not been investigated. Here, we sought to examine the effect of blunting postprandial hyperglycemia by following a low-carbohydrate diet, with or without postmeal walking exercise, on markers of vascular health in type 2 diabetes (T2D). In a randomized crossover design, individuals with T2D (N=11) completed three four-day controlled diet interventions consisting of i) low-carbohydrate diet alone (LC), ii) low-carbohydrate diet with 15-minute postmeal walks (LC+Ex), and iii) Low-fat control diet (CON)...
October 13, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29025405/the-anti-inflammatory-function-of-hdl-is-impaired-in-type-2-diabetes-role-of-hyperglycemia-paraoxonase-1-and-low-grade-inflammation
#16
Sanam Ebtehaj, Eke G Gruppen, Mojtaba Parvizi, Uwe J F Tietge, Robin P F Dullaart
BACKGROUND: Functional properties of high density lipoproteins (HDL) are increasingly recognized to play a physiological role in atheroprotection. Type 2 diabetes mellitus (T2DM) is characterized by low HDL cholesterol, but the effect of chronic hyperglycemia on the anti-inflammatory capacity of HDL, a metric of HDL function, is unclear. Therefore, the aim of the present study was to establish the impact of T2DM on the HDL anti-inflammatory capacity, taking paraoxonase-1 (PON-1) activity and low grade inflammation into account...
October 12, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29022570/arterial-stiffness-as-a-risk-factor-for-clinical-hypertension
#17
REVIEW
Michel E Safar
In patients with uncomplicated essential hypertension, cardiac output remains within normal ranges and intravascular volume is normal or low, assuming the presence of a sufficient Windkessel effect and usual resistance and compliance calculations. However, mean circulatory pressure is elevated in these patients. In addition, vascular resistance is augmented, and most importantly, the viscoelasticity of the cardiovascular system is substantially impaired. Such considerations are essential to understanding the mechanisms behind carotid-femoral arterial stiffness, a major risk factor in individuals with hypertension...
October 12, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/29017497/the-effects-of-vildagliptin-compared-with-metformin-on-vascular-endothelial-function-and-metabolic-parameters-a-randomized-controlled-trial-sapporo-athero-incretin-study-3
#18
Naoyuki Kitao, Hideaki Miyoshi, Tomoo Furumoto, Kota Ono, Hiroshi Nomoto, Aika Miya, Chiho Yamamoto, Atsushi Inoue, Kenichi Tsuchida, Naoki Manda, Yoshio Kurihara, Shin Aoki, Akinobu Nakamura, Tatsuya Atsumi
BACKGROUND: Dipeptidyl peptidase-4 (DPP-4) inhibitors may have protective effects in the early stage of atherosclerosis in patients with type 2 diabetes, although similar effects in advanced atherosclerosis were not shown in recent randomized placebo-controlled studies. Therefore, we investigated the efficacy of DPP-4 inhibitor on endothelial function and glycemic metabolism compared with high-dose metformin. METHODS: In this multicenter, open-labeled, prospective, randomized, parallel-group comparison study, patients with type 2 diabetes treated with low-dose metformin (500-750 mg/day) were enrolled and randomly assigned to a vildagliptin, a DPP-4 inhibitor, add-on group (Vilda) or a double dose of metformin group (high Met) for 12 weeks...
October 10, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28992267/white-blood-cell-fractions-correlate-with-lesions-of-diabetic-kidney-disease-and-predict-loss-of-kidney-function-in-type-2-diabetes
#19
Kevin M Wheelock, Pierre-Jean Saulnier, Stephanie K Tanamas, Pavithra Vijayakumar, E Jennifer Weil, Helen C Looker, Robert L Hanson, Kevin V Lemley, Berne Yee, William C Knowler, Samy Hadjadj, Bezhad Najafian, Michael Mauer, Robert G Nelson
Background: Inflammation linked to diabetic kidney disease (DKD) may affect white blood cell (WBC) counts and differentials. We examined the cross-sectional associations of total WBC count and WBC fractions with structural lesions of DKD in 108 Pima Indians with Type 2 diabetes who underwent research kidney biopsies. We also examined the longitudinal association of these WBC variables with renal function loss (RFL) in 941 Europeans with Type 2 diabetes from the SURDIAGENE study. Methods: Associations of WBC variables with morphometric parameters were assessed by linear regression...
July 18, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28990106/identification-of-key-genes-for-diabetic-kidney-disease-using-biological-informatics-methods
#20
Fuzhe Ma, Tao Sun, Meiyan Wu, Wanning Wang, Zhonggao Xu
Diabetic kidney disease (DKD) is a common complication of diabetes, which is characterized by albuminuria, impaired glomerular filtration rate or a combination of the two. The aim of the present study was to identify the potential key genes involved in DKD progression and to subsequently investigate the underlying mechanism involved in DKD development. The array data of GSE30528 including 9 DKD and 13 control samples was downloaded from the Gene Expression Omnibus database. The differentially expressed genes (DEGs) in DKD glomerular and tubular kidney biopsy tissues were compared with normal tissues, and were analyzed using the limma package...
December 2017: Molecular Medicine Reports
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