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https://www.readbyqxmd.com/read/28934670/conflicting-interactions-of-apolipoprotein-a-and-high-density-lipoprotein-cholesterol-with-microvascular-complications-of-type-2-diabetes
#1
Zahra Aryan, Mohsen Afarideh, Alireza Ghajar, Sadaf Esteghamati, Alireza Esteghamati, Manouchehr Nakhjavani
AIMS: This study is amid at investigating the associations, and interactions of serum lipid biomarkers with microvascular complications of type 2 diabetes (T2D). METHODS: A nested case-control study was conducted within an ongoing prospective study on patients with T2D. Microvascular complications of T2D including diabetic neuropathy, diabetic retinopathy and diabetic nephropathy were investigated. A total of 444 cases with at least one of the microvascular complications of T2D and 439 age- and gender-matched controls free of any of the chronic microvascular complications of T2D were included...
September 1, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28931519/beta-cell-replacement-in-mice-using-human-type-1-diabetes-nuclear-transfer-embryonic-stem-cells
#2
Lina Sui, Nichole Danzl, Sean R Campbell, Ryan Viola, Damian Williams, Yuan Xing, Yong Wang, Neil Phillips, Greg Poffenberger, Bjarki Johannesson, Jose Oberholzer, Alvin C Powers, Rudolph L Leibel, Xiaojuan Chen, Megan Sykes, Dieter Egli
Beta cells derived from stem cells hold great promise for cell replacement therapy for diabetes. Here we examine the ability of nuclear transfer embryonic stem cells (NT-ES) derived from a type 1 diabetes patient to differentiate into beta cells, and provide a source of autologous islets for cell replacement. NT-ES cells differentiate in vitro with an average efficiency of 55% into C-peptide-positive cells, expressing markers of mature beta cells, including MAFA and NKX6.1. Upon transplantation in immunodeficient mice, grafted cells form vascularized islet-like structures containing MAFA/C-peptide-positive cells...
September 20, 2017: Diabetes
https://www.readbyqxmd.com/read/28930225/vochysia-rufa-stem-bark-extract-protects-endothelial-cells-against-high-glucose-damage
#3
Neire Moura de Gouveia, Sonia Ramos, María Ángeles Martín, Foued Salmen Espindola, Luis Goya, Olga M Palomino
Background: Increased oxidative stress by persistent hyperglycemia is a widely accepted factor in vascular damage responsible for type 2 diabetes complications. The plant Vochysia rufa (Vr) has been used in folk medicine in Brazil for the treatment of diabetes. Thus; the protective effect of a Vr stem bark extract against a challenge by a high glucose concentration on EA.hy926 (EA) endothelial cells is evaluated. Methods: Vegetal material is extracted with distilled water by maceration and evaporated until dryness under vacuum...
February 21, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28927403/circulating-levels-and-characterization-of-microparticles-in-patients-with-different-degrees-of-glucose-tolerance
#4
Alessandra Giannella, Claudia Maria Radu, Lorenzo Franco, Elena Campello, Paolo Simioni, Angelo Avogaro, Saula Vigili de Kreutzenberg, Giulio Ceolotto
BACKGROUND: Microparticles (MPs) are vesicular structures shed from endothelial or circulating blood cells, after activation or apoptosis, and can be considered markers of vascular damage. We aimed to determine the levels of circulating MPs, their content of miRNA-126-3p and 5p, and their relationship with early endothelial activation/damage, in patients with different degree of glucose tolerance. METHODS: CD62E(+), CD62P(+), CD142(+), CD45(+) circulating MPs, their apoptotic (AnnexinV(+)) fractions, and miRNA-126 expression were determined in 39 prediabetic (PreDM), 68 type 2 diabetic (T2DM), and 53 control (NGT) subjects, along with main anthropometric and biochemical measurements...
September 19, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28926865/effects-of-hypoxia-during-continuous-and-intermittent-exercise-on-glycaemic-control-and-selected-markers-of-vascular-function-in-type-1-diabetes
#5
Barbara Hall, Aleksandra Zebrowska, Tomasz Kaminski, Arkadiusz Stanula, Anna Robins
Objectives The aim of the study was to assess the effect of continuous and intermittent exercise in hypoxia on glycaemic control and selected markers of vascular function in patients with Type 1 diabetes (T1D). Methods 12 patients suffering from T1D for 12.1±6.0 years and 12 healthy adults performed: continuous exercise (ExC) and intermittent exercise (ExInt) in normoxia and hypoxia (FiO₂=15.1%). Glycaemia and proangiogenic factors concentrations were measured at rest and immediately after exercise. Results T1D patients' glycaemia decreased in response to ExC (p<0...
September 19, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28923309/altered-penile-caveolin-expression-in-diabetes-potential-role-in-erectile-dysfunction
#6
Jay Parikh, Alice Zemljic-Harpf, Johnny Fu, Dimosthenis Giamouridis, Tung-Chin Hsieh, Adam Kassan, Karnam S Murthy, Valmik Bhargava, Hemal H Patel, M Raj Rajasekaran
BACKGROUND: The pathophysiology of increased severity of erectile dysfunction in men with diabetes and their poor response to oral pharmacotherapy are unclear. Defective vascular endothelium and consequent impairment in the formation and action of nitric oxide (NO) are implicated as potential mechanisms. Endothelial NO synthase, critical for NO generation, is localized to caveolae, plasma membrane lipid rafts enriched in structural proteins, and caveolins. Type 2 diabetes mellitus (T2DM)-induced changes in caveolin expression are recognized to play a role in cardiovascular dysfunction...
September 8, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28923115/serous-retinal-detachment-after-panretinal-photocoagulation-for-proliferative-diabetic-retinopathy-a-case-report
#7
Patrik Schatz, Ahmed Aldayel, Ibrahim Taskintuna, Ehab Abdelkader, Marco Mura
BACKGROUND: Proliferative diabetic retinopathy is a major cause of visual impairment in working-age adults worldwide. Panretinal photocoagulation is a cornerstone in its management; however, it may include a range of side effects and complications, one of these being serous retinal detachment. To the best of our knowledge, this is the first report of the use of intravitreal injection of bevacizumab for serous retinal detachment after panretinal photocoagulation. CASE PRESENTATION: A 24-year-old Saudi man with poorly controlled type 1 diabetes presented with bilateral progressive proliferative retinopathy in spite of several sessions of panretinal photocoagulation...
September 19, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28920085/baseline-prescription-and-one-year-persistence-of-secondary-prevention-drugs-after-an-index-stroke-in-central-ghana
#8
Fred Stephen Sarfo, Bruce Ovbiagele, John Akassi, Gloria Kyem
BACKGROUND AND PURPOSE: There is a paucity of data on persistence of secondary prevention medications among stroke survivors in resource-limited settings where stroke is on a rapid upward trajectory and its management severely challenged. To avert new cardiovascular events after stroke, preventive medications should be promptly instituted and used continuously. We report 1-year rates and determinants of persistent utilization of secondary prevention therapies after stroke in Ghana. METHODS: A retrospective observational study involving 418 stroke survivors enrolled into a Neurology clinic in a tertiary institution in central Ghana between January 2011 and December 2013...
March 2017: ENeurologicalSci
https://www.readbyqxmd.com/read/28915881/high-density-lipoprotein-modulates-osteocalcin-expression-in-circulating-monocytes-a-potential-protective-mechanism-for-cardiovascular-disease-in-type-1-diabetes
#9
Ernesto Maddaloni, Yu Xia, Kyoungmin Park, Stephanie D'Eon, Liane J Tinsley, Ronald St-Louis, Mogher Khamaisi, Qian Li, George L King, Hillary A Keenan
BACKGROUND: Cardiovascular disease (CVD) is a major cause of mortality in type 1 diabetes (T1D). A pro-calcific drift of circulating monocytes has been linked to vascular calcification and is marked by the surface expression of osteocalcin (OCN). We studied OCN+ monocytes in a unique population with ≥50 years of T1D, the 50-Year Joslin Medalists (J50M). METHODS: CD45 bright/CD14+/OCN+ cells in the circulating mononuclear blood cell fraction were quantified by flow cytometry and reported as percentage of CD45 bright cells...
September 16, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28915340/metabolic-profile-of-visual-cortex-in-diabetic-rats-measured-with-in-vivo-proton-mrs
#10
Shuang Li, Xinghua Wang, Junjie Yang, Hao Lei, Xuxia Wang, Yi Xiang
The purpose of the present study was to characterize the metabolic profile of the visual cortex in streptozotocin-induced Type 1 diabetic rats by means of in vivo proton MRS. Several metabolite concentration ratios in the visual cortex were calculated. In addition, postmortem histologic analyses for retinal ganglion cell (RGC) loss, optic nerve injury and visual cortex alterations were monitored. The results showed that diabetes induced several changes in visual cortex metabolites, such as reduced N-acetylaspartate, glutamate, γ-aminobutyric acid, taurine and choline-containing compound levels...
September 15, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28912194/assessing-oral-medication-adherence-among-patients-with-type-2-diabetes-mellitus-treated-with-polytherapy-in-a-developed-asian-community-a-cross-sectional-study
#11
Cia Sin Lee, Jane Hwee Mian Tan, Usha Sankari, Yi Ling Eileen Koh, Ngiap Chuan Tan
OBJECTIVES: The disease burden of type 2 diabetes mellitus (T2DM) is rising due to suboptimal glycaemic control leading to vascular complications. Medication adherence (MA) directly influences glycaemic control and clinical consequences. This study aimed to assess the MA of patients with T2DM and identify associated factors. DESIGN: Analysis of data from a cross-sectional survey and electronic medical records. SETTING: Primary care outpatient clinic in Singapore...
September 14, 2017: BMJ Open
https://www.readbyqxmd.com/read/28911610/myrciaria-cauliflora-extract-improves-diabetic-nephropathy-via-suppression-of-oxidative-stress-and-inflammation-in-streptozotocin-nicotinamide-mice
#12
Jeng-Dong Hsu, Chia-Chun Wu, Chi-Nan Hung, Chau-Jong Wang, Hui-Pei Huang
Myrciaria cauliflora is a functional food rich in anthocyanins, possessing antioxidative and anti-inflammatory properties. Our previous results demonstrated M. cauliflora extract (MCE) had beneficial effects in diabetic nephropathy (DN) and via the inhibition of Ras/PI3K/Akt and kidney fibrosis-related proteins. The purpose of this study was to assess the benefit of MCE in diabetes associated with kidney inflammation and glycemic regulation in streptozotocin-nicotinamide (STZ/NA)-induced diabetic mice. Compared with the untreated diabetic group, MCE significantly improved blood glucose and serum biochemical characteristic levels...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28910435/repeatability-and-reproducibility-of-superficial-macular-retinal-vessel-density-measurements-using-optical-coherence-tomography-angiography-en-face-images
#13
Jianqin Lei, Mary K Durbin, Yue Shi, Akihito Uji, Siva Balasubramanian, Elmira Baghdasaryan, Mayss Al-Sheikh, Srinivas R Sadda
Importance: The repeatability and reproducibility of quantitative metrics from optical coherence tomographic angiography (OCTA) must be assessed before these data can be confidently interpreted in clinical research and practice. Objective: To evaluate the repeatability and reproducibility of OCTA-derived retinal vascular quantitative metrics. Design, Setting and Participants: In this cross-sectional study, 21 healthy volunteers (42 eyes) and 22 patients with retinal disease (22 eyes), including 14 with age-related macular degeneration, 3 with epiretinal membrane, 2 with diabetic retinopathy, 2 with myopic macular degeneration, and 1 with retinal vein occlusion, were enrolled...
September 14, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28905321/network-analysis-of-mpo-and-other-relevant-proteins-involved-in-diabetic-foot-ulcer-and-other-diabetic-complications
#14
Mathew Saumya, E K Subin, T V Suchithra
Network analysis and visualization of genes are very important to understand large complex biological data in a better manner. Large data on genes and proteins in the biological systems are analyzed on the occurrence, interactions, co-expression, and co-regulations of various genes. Here we have visualized the genes involved in type 1 diabetes (T1D), type 2 diabetes (T2D), and foot ulcer condition to put light on the corrective measures to the problem of impaired healing. The goal of this study was to identify the important genes involved in the pathogenesis of diabetes complications and foot ulcer and its association with the free radical-producing enzyme, the myeloperoxidase (MPO)...
September 13, 2017: Interdisciplinary Sciences, Computational Life Sciences
https://www.readbyqxmd.com/read/28899393/the-mixed-benefit-of-low-lipoprotein-a-in-type-2-diabetes
#15
Michel P Hermans, Sylvie A Ahn, Michel F Rousseau
BACKGROUND: Lipoprotein(a) (Lp(a)), a variant low-density lipoprotein (LDL), is a major genetic risk factor for cardiovascular disease. It is unknown whether an inverse relationship exists between Lp(a) and β-cell function (BCF), as for LDL-cholesterol (LDL-C) lowering by statins. We therefore assessedthe cardiometabolic phenotype of 340 men with type 2 diabetes mellitus (T2DM) in relation to Lp(a), focusing on BCF and hyperbolic product [BxS], which adjusts BCF to insulin sensitivity and secretion...
September 12, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28894635/topical-naltrexone-is-a-safe-and-effective-alternative-to-standard-treatment-of-diabetic-wounds
#16
Patricia J McLaughlin, Jarrett D Cain, Michelle B Titunick, Joseph W Sassani, Ian S Zagon
Objective: Diabetes affects more than 29 million individuals in the United States, resulting in healthcare costs approaching $245 billion. Approximately 15% of these individuals will develop a chronic, non-healing foot ulcer (diabetic foot ulcer [DFU]) that, if untreated, may lead to amputation. The current treatments for DFU are expensive, have significant side-effects, and often result in non-compliance. A new topical treatment is described that accelerates cutaneous wound repair and is disease modifying by targeting underlying aberrant diabetic pathways...
September 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28893702/risk-factors-associated-with-perioperative-myocardial-infarction-in-major-open-vascular-surgery
#17
Danielle C Sutzko, Elizabeth A Andraska, Andrea T Obi, Peter K Henke, Nicholas H Osborne
BACKGROUND: Among patients undergoing non-cardiac surgery, major vascular surgery is associated with a high risk of perioperative myocardial infarction (MI). Currently there are no perioperative MI risk calculators accounting for intraoperative and postoperative risk factors in vascular surgery patients. We aimed to investigate specific risk factors for perioperative MI after major open vascular surgery to determine which patients are at highest risk of MI, and the association of perioperative MI with perioperative transfusion...
September 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28893184/the-canadian-hiv-and-aging-cohort-study-determinants-of-increased-risk-of-cardio-vascular-diseases-in-hiv-infected-individuals-rationale-and-study-protocol
#18
Madeleine Durand, Carl Chartrand-Lefebvre, Jean-Guy Baril, Sylvie Trottier, Benoit Trottier, Marianne Harris, Sharon Walmsley, Brian Conway, Alexander Wong, Jean-Pierre Routy, Colin Kovacs, Paul A MacPherson, Kenneth Marc Monteith, Samer Mansour, George Thanassoulis, Michal Abrahamowicz, Zhitong Zhu, Christos Tsoukas, Petronela Ancuta, Nicole Bernard, Cécile L Tremblay
BACKGROUND: With potent antiretroviral drugs, HIV infection is becoming a chronic disease. Emergence of comorbidities, particularly cardiovascular disease (CVD) has become a leading concern for patients living with the infection. We hypothesized that the chronic and persistent inflammation and immune activation associated with HIV disease leads to accelerated aging, characterized by CVD. This will translate into higher incidence rates of CVD in HIV infected participants, when compared to HIV negative participants, after adjustment for traditional CVD risk factors...
September 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28890350/thioredoxin-interacting-protein-promotes-high-glucose-induced-macrovascular-endothelial-dysfunction
#19
Xiaoyu Li, Karen L Kover, Daniel P Heruth, Dara J Watkins, Yanchun Guo, Wayne V Moore, Luke G He, Mengwei Zang, Mark A Clements, Yun Yan
Thioredoxin-interacting protein (TXNIP) emerges as a central regulator for glucose homeostasis, which goes awry in diabetic subjects. Endothelial dysfunction is considered the earliest detectable stage of cardiovascular disease (CVD), a major complication of diabetes. Here, we hypothesize that TXNIP may promote endothelial dysfunction seen in Type 1 diabetes mellitus (T1D). Using a T1D-like rat model, we found that diabetic rats showed significantly higher TXNIP mRNA and protein levels in peripheral blood, compared to their non-diabetic counterparts...
September 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28887562/metformin-improves-endothelial-function-and-reduces-blood-pressure-in-diabetic-spontaneously-hypertensive-rats-independent-from-glycemia-control-comparison-to-vildagliptin
#20
Mahdi Hamidi Shishavan, Robert H Henning, Azuwerus van Buiten, Maaike Goris, Leo E Deelman, Hendrik Buikema
Metformin confers vascular benefits beyond glycemia control, possibly via pleiotropic effects on endothelial function. In type-1-diabetes-mellitus (T1DM-)patients metformin improved flow-mediated dilation but also increased prostaglandin(PG)-F2α, a known endothelial-contracting factor. To explain this paradoxical finding we hypothesized that metformin increased endothelial-vasodilator mediators (e.g. NO and EDHF) to an even larger extent. Spontaneously-hypertensive-rats (SHR) display impaired endothelium-dependent relaxation (EDR) involving contractile PGs...
September 8, 2017: Scientific Reports
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