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endothelial function type diabetes

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https://www.readbyqxmd.com/read/28091556/vegf-b-promotes-recovery-of-corneal-innervations-and-trophic-functions-in-diabetic-mice
#1
Guohu Di, Xiaowen Zhao, Xia Qi, Songmei Zhang, Lu Feng, Weiyun Shi, Qingjun Zhou
Vascular endothelial growth factor (VEGF)-B possesses the capacity of promoting injured peripheral nerve regeneration and restore their sensory and trophic functions. However, the contribution and mechanism of VEGF-B in diabetic peripheral neuropathy remains unclear. In the present study, we investigated the expression and role of VEGF-B in diabetic corneal neuropathy by using type 1 diabetic mice and cultured trigeminal ganglion (TG) neurons. Hyperglycemia attenuated the endogenous expression of VEGF-B in regenerated diabetic corneal epithelium, but not that of VEGF receptors in diabetic TG neurons and axons...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28089343/assessment-of-microvascular-endothelial-function-in-type-1-diabetes-using-laser-speckle-contrast-imaging
#2
Alessandra S de M Matheus, Eliete Leão Silva Clemente, Maria de Lourdes Guimarães Rodrigues, Débora Cristina Torres Valença, Marília B Gomes
OBJECTIVE: To test whether laser speckle contrast imaging (LSCI) coupled with physiological post-occlusive reactive hyperemia (PORH) and pharmacological iontophoresis of acetylcholine (ACh) as local vasodilator stimuli could distinguish between cutaneous microvascular responses of Type 1 Diabetes (T1DM)'s patients with endothelial dysfunction and that of healthy controls. METHODS: Patients with T1DM aged ≥12years completed a clinical-epidemiological questionnaire...
January 3, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28076881/constitutive-nos-uncoupling-and-nadph-oxidase-upregulation-in-the-penis-of-type-2-diabetic-men-with-erectile-dysfunction
#3
B Musicki, A L Burnett
Erectile dysfunction (ED) associated with type 2 diabetes mellitus (T2DM) involves dysfunctional nitric oxide (NO) signaling and increased oxidative stress in the penis. However, the mechanisms of endothelial NO synthase (eNOS) and neuronal NO synthase (nNOS) dysregulation, and the sources of oxidative stress, are not well defined, particularly at the human level. The objective of this study was to define whether uncoupled eNOS and nNOS, and NADPH oxidase upregulation, contribute to the pathogenesis of ED in T2DM men...
January 11, 2017: Andrology
https://www.readbyqxmd.com/read/28067255/serelaxin-treatment-reverses-vascular-dysfunction-and-left-ventricular-hypertrophy-in-a-mouse-model-of-type-1-diabetes
#4
Hooi Hooi Ng, Chen Huei Leo, Darnel Prakoso, Chengxue Qin, Rebecca H Ritchie, Laura J Parry
Serelaxin prevents endothelial dysfunction in the mouse aorta ex vivo and inhibits apoptosis in cardiomyocytes under acute hyperglycaemia. Less is known about the effects of serelaxin in an in vivo mouse model of diabetes. Therefore, we tested the hypothesis in streptozotocin (STZ)-treated mice that serelaxin is able to reverse diabetes-induced vascular dysfunction and cardiac remodelling. Mice were divided into citrate buffer + placebo, STZ + placebo and STZ + serelaxin (0.5 mg/kg/d, 2 weeks) groups...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28062508/arterial-calcification-in-diabetes-mellitus-preclinical-models-and-translational-implications
#5
John N Stabley, Dwight A Towler
Diabetes mellitus increasingly afflicts our aging and dysmetabolic population. Type 2 diabetes mellitus and the antecedent metabolic syndrome represent the vast majority of the disease burden-increasingly prevalent in children and older adults. However, type 1 diabetes mellitus is also advancing in preadolescent children. As such, a crushing wave of cardiometabolic disease burden now faces our society. Arteriosclerotic calcification is increased in metabolic syndrome, type 2 diabetes mellitus, and type 1 diabetes mellitus-impairing conduit vessel compliance and function, thereby increasing the risk for dementia, stroke, heart attack, limb ischemia, renal insufficiency, and lower extremity amputation...
December 22, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28056981/arterial-stiffness-endothelial-and-cognitive-function-in-subjects-with-type-2-diabetes-in-accordance-with-absence-or-presence-of-diabetic-foot-syndrome
#6
Antonino Tuttolomondo, Alessandra Casuccio, Giovanni Guercio, Carlo Maida, Alessandro Del Cuore, Domenico Di Raimondo, Irene Simonetta, Danilo Di Bona, Rosaria Pecoraro, Vittoriano Della Corte, Eliana Gulotta, Gaspare Gulotta, Antonio Pinto
BACKGROUND: Endothelial dysfunction is an early marker of cardiovascular disease so endothelial and arterial stiffness indexes are good indicators of vascular health. We aimed to assess whether the presence of diabetic foot is associated with arterial stiffness and endothelial function impairment. METHODS: We studied 50 subjects with type 2 diabetes mellitus and diabetic foot syndrome (DFS) compared to 50 diabetic subjects without diabetic foot, and 53 patients without diabetes mellitus, by means of the mini mental state examination (MMSE) administered to evaluate cognitive performance...
January 6, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28051279/carotid-intima-media-thickness-and-blood-biomarkers-of-atherosclerosis-in-patients-after-stroke-or-myocardial-infarction
#7
Iwona Kurkowska-Jastrzebska, Michał A Karlinski, Beata Błazejewska-Hyzorek, Iwona Sarzynska-Dlugosz, Krzysztof J Filipiak, Anna Czlonkowska
AIM: To test if circulating levels of markers of inflammation, endothelial function, and chronic infections, as well as association between these markers and carotid intima media thickness (CIMT), depend on the stage of atherosclerosis expressed as a history of a major vascular event. METHODS: The associations were analyzed separately in 75 healthy controls, 79 patients 3-6 months after the first-ever non-cardioembolic ischemic stroke (IS), and 37 patients 3-6 months after the first-ever myocardial infarction (MI)...
December 31, 2016: Croatian Medical Journal
https://www.readbyqxmd.com/read/28044236/vascular-adhesion-protein-1-in-hemodialysis-and-hemodiafiltration-patients-effect-of-single-hemodialysis-session-on-its-level-in-regard-to-type-of-anticoagulant
#8
Jolanta Malyszko, Ewa Koc-Zorawska, Piotr Kozminski, Jacek S Malyszko
PURPOSE: Traditional anticoagulants used in intermittent hemodialysis (HD) are unfractionated heparin (UFH) and increasingly low molecular weight heparins (LMWHs). Repeated and prolonged exposure to UFH and/or LMWHs may further disturb hemostasis in uremic patients. Vascular adhesion protein-1 (VAP-1) is secreted by vascular smooth muscle cells, adipocytes and endothelial cells with functional monoamine oxidase activity and is elevated in atherosclerosis, diabetes mellitus and obesity...
January 2, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28042873/a-mini-network-balance-model-for-evaluating-the-progression-of-cardiovascular-complications-in-goto-kakizaki-rats
#9
Hao Jiang, Yu-Hao Wang, Chun-Xiang Wei, Xue Zhang, Hao-Chen Liu, Xiao-Quan Liu
Cardiovascular complications represent a leading cause of mortality in patients with type 2 diabetes mellitus (T2DM). During such complicated progression, subtle variations in the cardiovascular risk (CVR)-related biomarkers have been used to identify cardiovascular disease at the incipient stage. In this study we attempt to integrally characterize the progression of cardiovascular complications and to assess the beneficial effects of metformin combined with salvianolic acid A (Sal A), in Goto-Kakizaki (GK) rats with spontaneous T2DM...
January 2, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28036029/fenofibrate-therapy-restores-antioxidant-protection-and-improves-myocardial-insulin-resistance-in-a-rat-model-of-metabolic-syndrome-and-myocardial-ischemia-the-role-of-angiotensin-ii
#10
Luz Ibarra-Lara, María Sánchez-Aguilar, Alicia Sánchez-Mendoza, Leonardo Del Valle-Mondragón, Elizabeth Soria-Castro, Elizabeth Carreón-Torres, Eulises Díaz-Díaz, Héctor Vázquez-Meza, Verónica Guarner-Lans, María Esther Rubio-Ruiz
Renin-angiotensin system (RAS) activation promotes oxidative stress which increases the risk of cardiac dysfunction in metabolic syndrome (MetS) and favors local insulin resistance. Fibrates regulate RAS improving MetS, type-2 diabetes and cardiovascular diseases. We studied the effect of fenofibrate treatment on the myocardic signaling pathway of Angiotensin II (Ang II)/Angiotensin II type 1 receptor (AT1) and its relationship with oxidative stress and myocardial insulin resistance in MetS rats under heart ischemia...
December 28, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28026829/retinol-binding-protein-4-rbp4-as-the-causative-factor-and-marker-of-vascular-injury-related-to-insulin-resistance
#11
Marcin Majerczyk, Magdalena Olszanecka-Glinianowicz, Monika Puzianowska-Kuźnicka, Jerzy Chudek
One of adipokines involved in the development of insulin resistance is retinol-binding protein 4(RBP4). The physiological role of RBP4 is transport of retinol from the liver to peripheral tissues. One of the first events related to the excessive visceral fat accumulation is the development of inflammation followed by hormonal adipose tissue dysfunction, including excessive RBP4 production. Reduced density of the membrane-type glucose transporter 4 (GLUT4) is considered as a direct cause for the stimulation of RBP4 release to the circulation by adipocytes...
December 21, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28012835/impaired-endothelial-function-and-arterial-stiffness-in-patients-with-type-2-diabetes-the-effect-of-a-very-low-dose-combination-of-fluvastatin-and-valsartan
#12
Maja Boncelj Svetek, Barbara Eržen, Karin Kanc, Mišo Šabovič
AIM: Patients with type 2 diabetes are at increased cardiovascular risk. The aim was to explore whether the impaired arterial wall characteristics typical of these patients could be improved by the unique beneficial effects of a very low-dose combination of fluvastatin and valsartan (low-flu/val). METHODS: Forty middle-aged males (50.4±6.1years) with type 2 diabetes were recruited to a double-blind, randomized study. Patients (N=20) received low-flu/val (10/20mg) or placebo (N=20) over 30days in addition to their regular therapy...
December 16, 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28005663/type-1-versus-type-3-neovascularization-in-pigment-epithelial-detachments-associated-with-age-related-macular-degeneration-after-anti-vascular-endothelial-growth-factor-therapy-a-prospective-study
#13
Xuejing Chen, Mayss Al-Sheikh, Clement K Chan, Amir H Hariri, Prema Abraham, Maziar Lalezary, Steven G Lin, SriniVas Sadda, David Sarraf
PURPOSE: To evaluate the response to aflibercept therapy for Type 1 and Type 3 neovascularization in pigment epithelial detachments associated with treatment-naive, neovascular age-related macular degeneration. METHODS: In this multicentered, prospective study, eligible eyes underwent an intravitreal aflibercept injection protocol for 12 months. Visual acuity and morphologic features of the pigment epithelial detachments were compared at baseline and follow-up intervals between eyes with Type 1 versus Type 3 neovascularization...
December 2016: Retina
https://www.readbyqxmd.com/read/28001011/deterioration-of-endothelial-function-of-micro-and-macrocirculation-in-patients-with-diabetes-type-1-and-2
#14
Hana Besic, Luka Jeraj, Ana Spirkoska, Mateja K Jezovnik, Pavel Poredos
BACKGROUND: Vascular complications are an important cause of morbidity in patients with diabetes mellitus (DM). Endothelial dysfunction is an early marker of atherosclerosis and has already been shown in macrocirculation of diabetic patients, however, data on endothelial function of microcirculation is scarce. Our aim was to evaluate endothelial function in macro- and microcirculation and their interrelationship in patients with type 1 and 2 DM. METHODS: The study included 30 patients with type 1 DM, 30 patients with type 2 DM and 25 healthy controls...
December 20, 2016: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/27993955/uric-acid-is-associated-with-inflammation-coronary-microvascular-dysfunction-and-adverse-outcomes-in-postmenopausal-women
#15
Megha Prasad, Eric L Matteson, Joerg Herrmann, Rajiv Gulati, Charanjit S Rihal, Lilach O Lerman, Amir Lerman
Uric acid is a risk factor for coronary artery disease in postmenopausal women, but the association with inflammation and coronary endothelial dysfunction (CED) is not well defined. The aim of this study was to determine the relationship of serum uric acid (SUA), inflammatory markers, and CED. In this prospective cohort study, SUA, high-sensitivity C-reactive protein levels, and neutrophil count were measured in 229 postmenopausal women who underwent diagnostic catheterization, were found to have no obstructive coronary artery disease, and underwent coronary microvascular function testing, to measure coronary blood flow response to intracoronary acetylcholine...
February 2017: Hypertension
https://www.readbyqxmd.com/read/27991577/a-polymorphism-of-hmga1-protects-against-proliferative-diabetic-retinopathy-by-impairing-hmga1-induced-vegfa-expression
#16
Eusebio Chiefari, Valeria Ventura, Carmelo Capula, Giorgio Randazzo, Vincenzo Scorcia, Monica Fedele, Biagio Arcidiacono, Maria Teresa Nevolo, Francesco Luciano Bilotta, Michela Vitiello, Camillo Palmieri, Elio Gulletta, Alfredo Fusco, Daniela Foti, Raffaella Vero, Antonio Brunetti
Diabetic retinopathy (DR) is a major complication of diabetes mellitus, and is the leading cause of blindness in working-age people. Usually, DR progresses from the asymptomatic non-proliferative DR that does not significantly alter vision, to proliferative DR (PDR), which can result in aberrant retinal neovessel formation and blindness. The High-Mobility-Group A1 (HMGA1) protein is a transcriptional master regulator of numerous genes, including metabolic and inflammatory genes, which, by modulating the expression of angiogenic factors, may induce retinal neovascularization, a hallmark of PDR...
December 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27989505/endothelial-mirnas-as-cellular-messengers-in-cardiometabolic-diseases
#17
REVIEW
Makon-Sébastien Njock, Jason E Fish
Metabolic syndrome is a clustering of risk factors that increases susceptibility to serious cardiometabolic complications, including type 2 diabetes (T2D) and myocardial infarction. Understanding the underlying mechanisms will advance the development of diagnostic and therapeutic approaches. A prominent feature of cardiometabolic diseases is endothelial dysfunction. Endothelial cell (EC) homeostasis and response to pathological stimuli are controlled by gene regulatory networks in which miRNAs play a critical role...
December 15, 2016: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/27988406/diabetes-impairs-arterio-venous-specification-in-engineered-vascular-tissues-in-a-perivascular-cell-recruitment-dependent-manner
#18
Wafa Altalhi, Xuetao Sun, Jeremy M Sivak, Mansoor Husain, Sara S Nunes
Cell-based tissue engineering is a potential treatment alternative for organ replacement. However, the lack of a robust vasculature, especially in the context of diseases such as diabetes, is a major hindrance to its success. Despite extensive research on the effects of diabetes in angiogenic sprouting, its effects on vessel arterio-venous (AV) specification have not been addressed. Using an engineered tissue that yields functional vessels with characteristic AV identities, we demonstrate that type 1 diabetes negatively affects vessel AV specification and perivascular cell (PVC) coverage...
March 2017: Biomaterials
https://www.readbyqxmd.com/read/27941804/resveratrol-rescues-hyperglycemia-induced-endothelial-dysfunction-via-activation-of-akt
#19
Jin-Yi Li, Wei-Qiang Huang, Rong-Hui Tu, Guo-Qiang Zhong, Bei-Bei Luo, Yan He
Resveratrol (RSV), a phytoalexin, has shown to prevent endothelial dysfunction and reduce diabetic vascular complications and the risk of cardiovascular diseases. The aim of this study was to investigate the signaling mechanisms underlying the protecting effects of RSV against endothelial dysfunction during hyperglycemia in vitro and in vivo. Human umbilical vein endothelial cells (HUVECs) were treated with RSV, and then exposed to high glucose (HG, 30 mmol/L). Akt-Ser473 phosphorylation, eNOS-Ser1177 phosphorylation, and PTEN protein levels in the cells were detected using Western blot...
December 12, 2016: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/27935183/metformin-in-adults-with-type-1-diabetes-design-and-methods-of-reducing-with-metformin-vascular-adverse-lesions-removal-an-international-multicentre-trial
#20
J R Petrie, N Chaturvedi, I Ford, I Hramiak, A D Hughes, A J Jenkins, B Klein, R Klein, T C Ooi, P Rossing, N Sattar, C D A Stehouwer, H M Colhoun
INTRODUCTION: Cardiovascular (CV) disease is a major cause of reduced life expectancy in type 1 diabetes (T1D). Intensive insulin therapy prevents CV complications but is constrained by hypoglycaemia and weight gain. Adjunct metformin reduces insulin dose requirement and stabilises weight but there are no data on its cardiovascular effects. AIMS: We have initiated an international double-blind, randomized, placebo-controlled trial (REMOVAL: REducing with MetfOrmin Vascular Adverse Lesions in type 1 diabetes) to examine whether metformin reduces progression of atherosclerosis in adults with T1D...
December 9, 2016: Diabetes, Obesity & Metabolism
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