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Diabetes & Vascular Disease Research

Wengao Jiang, Qiang Tang, Lei Zhang, Yinxue Chao, Bing Hong
OBJECTIVE: Recent studies have indicated the implication of C1q tumour necrosis factor-related protein 9 in vascular pathology of atherosclerosis. This study first investigated the association of C1q tumour necrosis factor-related protein 9 and the severity of lower extremity peripheral arterial disease in type 2 diabetes mellitus patients. METHODS: A total of 200 patients with type 2 diabetes mellitus had ankle-brachial index examined in this cross-sectional study, 60 patients with ankle-brachial index of ⩽0...
March 1, 2018: Diabetes & Vascular Disease Research
Fabiana Blanco, Suvi E Heinonen, Erika Gurzeler, Lisa M Berglund, Anna-Maria Dutius Andersson, Olga Kotova, Ann-Cathrine Jönsson-Rylander, Seppo Ylä-Herttuala, Maria F Gomez
AIMS: Despite vast clinical experience linking diabetes and atherosclerosis, the molecular mechanisms leading to accelerated vascular damage are still unclear. Here, we investigated the effects of nuclear factor of activated T-cells inhibition on plaque burden in a novel mouse model of type 2 diabetes that better replicates human disease. METHODS & RESULTS: IGF-II/LDLR-/- ApoB100/100 mice were generated by crossbreeding low-density lipoprotein receptor-deficient mice that synthesize only apolipoprotein B100 (LDLR-/- ApoB100/100 ) with transgenic mice overexpressing insulin-like growth factor-II in pancreatic β cells...
March 1, 2018: Diabetes & Vascular Disease Research
Betül Ersoy, Nilgün Eroğlu, Mecnun Çetin, Ece Onur, Mine Özkol, Şenol Coşkun
AIMS: We aimed to evaluate asymmetric dimethylarginine levels in young patients with Type 1 diabetes mellitus according to diabetes duration and to examine the relationship between these levels and measures of atherosclerosis and myocardial function. MATERIALS AND METHODS: In total, 83 patients (8.5-22 years) with Type 1 diabetes mellitus were stratified by diabetes duration: 12-60 months (Group 1, n = 27), >60-120 months (Group 2, n = 29) and >120 months (Group 3, n = 27)...
March 1, 2018: Diabetes & Vascular Disease Research
Karen A Nunley, Andrea L Metti, Ronald Klein, Barbara E Klein, Judith A Saxton, Trevor J Orchard, Tina Costacou, Howard J Aizenstein, Caterina Rosano
OBJECTIVE: To assess associations between cognitive impairment and longitudinal changes in retinal microvasculature, over 18 years, in adults with type 1 diabetes. RESEARCH DESIGN AND METHODS: Participants of the Pittsburgh Epidemiology of Diabetes Complications Study received ≥3 fundus photographs between baseline (1986-1988) and time of cognitive assessment (2010-2015: N = 119; 52% male; mean age and type 1 diabetes duration 43 and 34 years, respectively). Central retinal arteriolar equivalent and central retinal venular equivalent were estimated via computer-based methods; overall magnitude and speed of narrowing were quantified as cumulative average and slope, respectively...
February 1, 2018: Diabetes & Vascular Disease Research
Sudeep P Pushpakom, Antonysunil Adaikalakoteswari, Andrew Owen, David J Back, Gyanendra Tripathi, Sudhesh Kumar, Philip McTernan, Munir Pirmohamed
BACKGROUND: Antiretroviral therapy in HIV-positive patients leads to insulin resistance which is central to the pathogenesis of various metabolic abnormalities and cardiovascular disease seen in this patient group. We have investigated the dose-response relationship of telmisartan, an antihypertensive, on adipocytes in vitro in order to determine whether it may have metabolic beneficial effects. METHODS: Using in vitro chronic toxicity models (3T3-F442A murine and primary human adipocytes), we evaluated the effects of different concentrations of telmisartan on adipocyte differentiation and adipogenic gene expression using lipid accumulation assays and real-time polymerase chain reaction, respectively...
February 1, 2018: Diabetes & Vascular Disease Research
Margit Solymar, Ivan Ivic, Marta Balasko, Balazs D Fulop, Gabor Toth, Andrea Tamas, Gyongyver Reman, Akos Koller, Dora Reglodi
BACKGROUND: Short-lasting hyperglycaemia occurs frequently in prediabetes and poorly controlled diabetes mellitus leading to vascular damage. Pituitary adenylate cyclase-activating polypeptide (PACAP) has been shown to play a protective role in vascular complications of diabetes; moreover, antioxidant effects of PACAP were also described. Therefore, we hypothesized that PACAP exerts protective effects in short-term hyperglycaemia-induced vascular dysfunctions. METHODS: After short-term hyperglycaemia, acetylcholine-induced and sodium nitroprusside-induced vascular relaxation of mouse carotid arteries were tested with a myograph with or without the presence of PACAP or superoxide dismutase...
February 1, 2018: Diabetes & Vascular Disease Research
Leila Hadjadj, Szabolcs Várbíró, Eszter Mária Horváth, Anna Monori-Kiss, Éva Pál, Gellért Balázs Karvaly, Andrea Heinzlmann, Attila Magyar, István Szabó, Réka Eszter Sziva, Zoltán Benyó, Mariann Buday, György László Nádasy
Hyperandrogenic state in females is accompanied with metabolic syndrome, insulin resistance and vascular pathologies. A total of 67%-85% of hyperandrogenic women suffer also from vitamin D deficiency. We aimed to check a potential interplay between hyperandrogenism and vitamin D deficiency in producing insulin resistance and effects on coronary resistance arteries. Adolescent female rats were divided into four groups, 11-12 animals in each. Transdermal testosterone-treated and vehicle-treated animals were kept either on vitamin D-deficient or on vitamin D-supplemented diet for 8 weeks...
February 1, 2018: Diabetes & Vascular Disease Research
Ramzi A Ajjan, Michael H Cummings, Peter Jennings, Lalantha Leelarathna, Gerry Rayman, Emma G Wilmot
Continuous glucose monitoring and flash glucose monitoring technologies measure glucose in the interstitial fluid and are increasingly used in diabetes care. Their accuracy, key to effective glycaemic management, is usually measured using the mean absolute relative difference of the interstitial fluid sensor compared to reference blood glucose readings. However, mean absolute relative difference is not standardised and has limitations. This review aims to provide a consensus opinion on assessing accuracy of interstitial fluid glucose sensing technologies...
February 1, 2018: Diabetes & Vascular Disease Research
Mohammad Alkhalil, Evan Edmond, Laurienne Edgar, Janet E Digby, Omar Omar, Matthew D Robson, Robin P Choudhury
BACKGROUND AND AIMS: Imaging studies have relied on the 'overall' volumetric quantification of perivascular adipose tissue. We sought to assess the relationship of circumferential distribution between perivascular adipose tissue and adjacent wall thickness of carotid and aortic arteries using dedicated magnetic resonance imaging sequences. METHODS: Vessel wall and perivascular adipose tissue were acquired using magnetic resonance imaging (1.5 T). Co-registered images were segmented separately, and measurements of both perivascular adipose tissue and vessel wall were obtained along radii of the vessel spaced at angles of 5° each...
February 1, 2018: Diabetes & Vascular Disease Research
Pongpan Tanajak, Wanpitak Pongkan, Siriporn C Chattipakorn, Nipon Chattipakorn
Propose: To investigate the temporal relationship between plasma fibroblast growth factor 21 levels, insulin resistance, metabolic dysfunction and cardiac fibroblast growth factor 21 resistance in long-term high-fat diet-induced obese rats. METHODS: In total, 36 male Wistar rats were fed with either a normal diet or high-fat diet for 12 weeks. Blood was collected from the tail tip, and plasma was used to determine metabolic profiles and fibroblast growth factor 21 levels. Rats were sacrificed at weeks 4, 8 and 12, and the hearts were rapidly removed for the determination of cardiac fibroblast growth factor 21 signalling pathways...
February 1, 2018: Diabetes & Vascular Disease Research
Jiayu Zhang, Liang Wu, Jiawei Chen, Sisi Lin, Daqiu Cai, Chengwei Chen, Zhenguo Chen
BACKGROUND: Diabetic retinopathy is a neurological disease, which can lead to blindness in severe cases. The pathogenesis underlying diabetic retinopathy is unclear. The aim of this study was to explore the role of dysregulated microRNA 29a/b in the onset and progression of diabetic retinopathy. METHODS: Diabetes mellitus was induced in rats using 60 mg/kg of streptozotocin. Glucose (5.5 and 25 mM) was used to stimulate rat retinal Müller cells. Real-time polymerase chain reaction and Western blot analyses were used to determine gene expression...
February 1, 2018: Diabetes & Vascular Disease Research
Xanthippi A Tsekmekidou, Kalliopi D Kotsa, Fotis S Tsetsos, Triantafyllos P Didangelos, Marianthi A Georgitsi, Athanasios K Roumeliotis, Stylianos A Panagoutsos, Elias D Thodis, Marios T Theodoridis, Nikolaos P Papanas, Dimitrios A Papazoglou, Ploumis S Pasadakis, Maltezos S Eustratios, Peristera I Paschou, John G Yovos
BACKGROUND: Inflammation plays a pivotal role in the pathogenesis of diabetes and its complications. Arachidonic acid lipoxygenases have been intensively studied in their role in inflammation in metabolic pathways. Thus, we aimed to explore variants of lipoxygenase genes (arachidonate lipoxygenase genes) in a diabetes adult population using a case-control study design. METHODS: Study population consisted of 1285 elderly participants, 716 of whom had type 2 diabetes mellitus...
February 1, 2018: Diabetes & Vascular Disease Research
Ding Liu, Lei Liu, Zhongyang Hu, Zhi Song, Yaqin Wang, Zhiheng Chen
AIM: Type 2 diabetes mellitus is a polygenic metabolic disorder resulting from oxidative stress, the root cause of insulin resistance, β-cell dysfunction and impaired glucose tolerance. The aim of this study was to investigate the role of oxidative stress-related genes ALOX5, ALOX5AP, GPX1, GPX3 and MPO in type 2 diabetes mellitus susceptibility in the Chinese Han population. METHODS: A total of 396 type 2 diabetes mellitus patients and 678 controls were recruited...
January 1, 2018: Diabetes & Vascular Disease Research
Xiu-Juan Li
BACKGROUND: The role of long non-coding RNA in diabetic retinopathy, a serious complication of diabetes mellitus, has attracted increasing attention in recent years. The purpose of this study was to explore whether long non-coding RNA nuclear paraspeckle assembly transcript 1 was involved in the context of diabetic retinopathy and its underlying mechanisms. RESULTS: Our results revealed that nuclear paraspeckle assembly transcript 1 was significantly downregulated in the retina of diabetes mellitus rats...
January 1, 2018: Diabetes & Vascular Disease Research
Domenico Grieco, Zefferino Palamà, Alessio Borrelli, Ermenegildo De Ruvo, Luigi Sciarra, Antonio Scarà, Emilia Goanta, Vito Calabrese, Paolo Pozzilli, Germano Di Sciascio, Leonardo Calò
Complex fractionated atrial electrograms (CFAEs) are related to atrial fibrosis, but their ablation has not yet shown superiority. The aim of the study was to compare, in terms of clinical outcome, two strategies of paroxysmal atrial fibrillation (AF) ablation in patients with type 1 diabetes mellitus (DM): pulmonary vein isolation (PVI) vs. PVI + CFAEs. Compared to an historical population of patient with paroxysmal AF and without DM, a higher percentage of patients with DM showed more than 25% of atrial area interested by CFAEs (study population, 58% vs historical group, 15%; p < 0...
January 1, 2018: Diabetes & Vascular Disease Research
Selthofer-Relatić K, Radić R, Stupin A, Šišljagić V, Bošnjak I, Bulj N, Selthofer R, Delić Brkljačić D
OBJECTIVE: Obesity-related atherosclerosis is a systemic disease with a background connected to multiple metabolic-neurohumoral pathways. The leptin/adiponectin ratio has been suggested as an atherosclerotic marker in obese patients. The aim of this study was to assess (1) the significance of the L/A ratio in overweight subjects, (2) the relation with anthropometric/metabolic parameters and (3) gender difference. METHOD: The study included 80 adult males and females, overweight, non-diabetic patients...
January 1, 2018: Diabetes & Vascular Disease Research
Jacek Ziaja, Adrian P Kowalik, Aureliusz Kolonko, Dorota Kamińska, Aleksander J Owczarek, Agata Kujawa-Szewieczek, Mariusz A Kusztal, Joanna Badura, Dominika Bożek-Pająk, Piotr Choręza, Agnieszka Zakrzewska, Robert Król, Stefan Chłopicki, Marian Klinger, Andrzej Więcek, Jerzy Chudek, Lech Cierpka
The purpose of this study was to analyse the influence of simultaneous pancreas-kidney or kidney transplantation on endothelial function and systemic inflammation in type 1 diabetic patients with end-stage renal disease. In 39 simultaneous pancreas-kidney, 39 type 1 diabetic kidney and 52 non-diabetic kidney recipients, flow-mediated dilatation was measured. Additionally, blood glycated haemoglobin, serum creatinine and lipids, plasma nitrites [Formula: see text] and nitrates, asymmetric dimethylarginine, soluble vascular cell adhesion molecule-1, intercellular adhesion molecule-1, and E-selectin, high-sensitivity C-reactive protein, tumour necrosis factor-α, interleukin 1β and interleukin 6 concentrations were assessed...
March 2018: Diabetes & Vascular Disease Research
Qiong Chen, Hailan Yang, Yongliang Feng, Ping Zhang, Weiwei Wu, Shuzhen Li, Brian Thompson, Xin Wang, Tingting Peng, Fang Wang, Bingjie Xie, Pengge Guo, Mei Li, Ying Wang, Nan Zhao, Suping Wang, Yawei Zhang
Gestational diabetes mellitus is a growing public health concern due to its large disease burden; however, the underlying pathophysiology remains unclear. Therefore, we examined the relationship between 107 single-nucleotide polymorphisms in insulin signalling pathway genes and gestational diabetes mellitus risk using a nested case-control study. The SOS1 rs7598922 GA and AA genotype were statistically significantly associated with reduced gestational diabetes mellitus risk ( ptrend  = 0.0006) compared with GG genotype...
March 2018: Diabetes & Vascular Disease Research
Hyun Yoon, Mi Young Gi, Ju Ae Cha, Chan Uk Yoo, Sang Muk Park
OBJECTIVE: This study assessed the association of metabolic syndrome and metabolic syndrome score with the predicted forced vital capacity and predicted forced expiratory volume in 1 s (predicted forced expiratory volume in 1 s) values in Korean non-smoking adults. METHODS: We analysed data obtained from 6684 adults during the 2013-2015 Korean National Health and Nutrition Examination Survey. RESULTS: After adjustment for related variables, metabolic syndrome ( p < 0...
March 2018: Diabetes & Vascular Disease Research
Yi-Jie Peng, Meng-Ju Tsai
PURPOSE: To investigate the impact of metabolic control on macular thickness measured using optical coherence tomography in patients with diabetic retinopathy with or without macular oedema. METHODS: A total of 124 patients with diabetic retinopathy ( n = 70 without macular oedema and n = 54 with macular oedema) were enrolled. Optical coherence tomography parameters measured included central macular thickness and total macular volume. Metabolic factors with correlation to optical coherence tomography parameters were fasting plasma glucose, glycosylated haemoglobin, triglyceride, low-density lipoprotein and estimated glomerular filtration rate...
March 2018: Diabetes & Vascular Disease Research
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