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https://www.readbyqxmd.com/read/29351188/proangiogenic-effect-of-metformin-in-endothelial-cells-is-via-upregulation-of-vegfr1-2-and-their-signaling-under-hyperglycemia-hypoxia
#1
Sherin Bakhashab, Farid Ahmed, Hans-Juergen Schulten, Fahad W Ahmed, Michael Glanville, Mohammed H Al-Qahtani, Jolanta U Weaver
Cardiovascular disease is the leading cause of morbidity/mortality worldwide. Metformin is the first therapy offering cardioprotection in type 2 diabetes and non-diabetic animals with unknown mechanism. We have shown that metformin improves angiogenesis via affecting expression of growth factors/angiogenic inhibitors in CD34⁺ cells under hyperglycemia-hypoxia. Now we studied the direct effect of physiological dose of metformin on human umbilical vein endothelial cells (HUVEC) under conditions mimicking hypoxia-hyperglycemia...
January 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29343817/associations-between-body-mass-index-and-the-risk-of-renal-events-in-patients-with-type-2-diabetes
#2
Kamel Mohammedi, John Chalmers, William Herrington, Qiang Li, Giuseppe Mancia, Michel Marre, Neil Poulter, Anthony Rodgers, Bryan Williams, Vlado Perkovic, Josef Coresh, Mark Woodward
BACKGROUND/OBJECTIVES: We aimed to evaluate the relationship between BMI and the risk of renal disease in patients with type 2 diabetes in the Action in Diabetes and Vascular Disease: PreterAx and DiamicroN Modified-Release Controlled Evaluation (ADVANCE) study. SUBJECTS/METHODS: Participants were divided into six baseline BMI categories: <18.5 (underweight, n = 58); ≥18.5 to <25 (normal, n = 2894); ≥25 to <30 (overweight, n = 4340); ≥30 to <35 (obesity grade 1, n = 2265); ≥35 to <40 (obesity grade 2, n = 744); and ≥40 kg/m2 (obesity grade 3, n = 294); those underweight were excluded...
January 17, 2018: Nutrition & Diabetes
https://www.readbyqxmd.com/read/29340155/preservation-of-renal-function-by-intensive-glycemic-control
#3
Naoya Toriu, Masayuki Yamanouchi, Rikako Hiramatsu, Noriko Hayami, Junichi Hoshino, Akinari Sekine, Masahiro Kawada, Eiko Hasegawa, Tatsuya Suwabe, Keiichi Sumida, Toshiharu Ueno, Naoki Sawa, Kenichi Ohashi, Takeshi Fujii, Kenmei Takaichi, Motoko Yanagita, Tetsuro Kobayasi, Yoshifumi Ubara
We report the case of a 67-year-old Japanese woman with type 1 diabetes mellitus. At 47 years of age, her hemoglobin A1c (HbA1c) was 10.0%, and she had overt nephropathy. The first renal biopsy yielded a diagnosis of diabetic nephropathy. Intensive glycemic control was initiated and her HbA1c improved to 6.0%. Renal dysfunction showed no progression for 15 years. At 62 years of age, a second renal biopsy was performed. Glomerular lesions did not show progression but tubulointerstitial fibrosis and vascular lesions showed progression compared with the first biopsy...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29338755/hyperhomocysteinemia-in-bilateral-anterior-ischemic-optic-neuropathy-after-conventional-coronary-artery-bypass-graft-a-case-report
#4
A Niro, G Sborgia, A Sborgia, G Alessio
BACKGROUND: The incidence of anterior ischemic optic neuropathy after coronary artery bypass graft procedures ranges from 1.3 to 0.25%. The mechanisms of anterior ischemic optic neuropathy after cardiovascular procedures remain undefined but many systemic and related-to-surgery risk factors could underlie anterior ischemic optic neuropathy. In this case, we report a rare presentation of a bilateral anterior ischemic optic neuropathy after coronary artery bypass graft and speculate on the preoperative hyperhomocysteinemia as an independent risk factor for anterior ischemic optic neuropathy...
January 17, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29338727/mendelian-randomization-analysis-to-assess-a-causal-effect-of-haptoglobin-on-macroangiopathy-in-chinese-type-2-diabetes-patients
#5
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/29337033/gliclazide-a-katp-channel-blocker-inhibits-vascular-smooth-muscle-cell-proliferation-through-the-camkk%C3%AE-ampk-pathway
#6
Kyung Young Lee, Jae-Ryong Kim, Hyoung Chul Choi
Gliclazide, a sulfonylurea that is widely used to treat type II-diabetes, specifically blocks KATP channels and recombinant smooth muscle (SUR2B/Kir6.1) KATP channels with high potency. Furthermore, it exerts antioxidant properties and inhibits tumor cell proliferation. In this study, we investigated the inhibitory effect of gliclazide on vascular smooth muscle cell (VSMC) proliferation and tried to identify the underlying signaling pathway. We first investigated the effect of gliclazide-induced AMP-activated protein kinase (AMPK) activation on the proliferation of VSMCs...
January 11, 2018: Vascular Pharmacology
https://www.readbyqxmd.com/read/29336634/sicam-1-svcam-1-and-se-selectin-levels-in-type-1-diabetes
#7
Anwar Fathollahi, Ahmad Massoud, Ali Akbar Amirzargar, Babak Aghili, Ensieh Nasli Esfahani, Nima Rezaei
BACKGROUND/OBJECTIVE: This study was performed to compare soluble levels of adhesion molecules between diabetic patients and controls and to assess their possible association with long-term complications of type 1 diabetes (T1D). METHODS: Forty-eight patients with T1D and 39 healthy controls were enrolled in this study. The plasma level of adhesion molecules was measured by sandwich enzyme-linked immunosorbent assay technique. RESULTS: Higher sVCAM 1 (soluble vascular cell adhesion molecule 1) levels correlated with older age of onset of T1D...
January 16, 2018: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/29335432/the-relationship-of-dietary-fish-intake-to-diabetic-retinopathy-and-retinal-vascular-caliber-in-patients-with-type-2-diabetes
#8
Jacqueline Chua, Ai-Ru Chia, Miao Li Chee, Ryan Eyn Kidd Man, Gavin Siew Wei Tan, Ecosse L Lamoureux, Tien Yin Wong, Mary Foong-Fong Chong, Leopold Schmetterer
In this cross-sectional study, we evaluated the association of dietary fish intake with varying severity of diabetic retinopathy (DR) and retinal vascular caliber in Asians with type 2 diabetes mellitus. 357 Asians (median age: 58 years; 31% women; 78% Chinese) were recruited from a tertiary eye care institution in Singapore. Fish consumption was evaluated using a validated food frequency questionnaire. Digital retinal photographs assessed for DR severity and retinal vascular caliber. Ordered logistic and linear regression models were used to investigate the association of fish intake with DR severity and vascular caliber...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29333660/interventions-to-increase-attendance-for-diabetic-retinopathy-screening
#9
REVIEW
John G Lawrenson, Ella Graham-Rowe, Fabiana Lorencatto, Jennifer Burr, Catey Bunce, Jillian J Francis, Patricia Aluko, Stephen Rice, Luke Vale, Tunde Peto, Justin Presseau, Noah Ivers, Jeremy M Grimshaw
BACKGROUND: Despite evidence supporting the effectiveness of diabetic retinopathy screening (DRS) in reducing the risk of sight loss, attendance for screening is consistently below recommended levels. OBJECTIVES: The primary objective of the review was to assess the effectiveness of quality improvement (QI) interventions that seek to increase attendance for DRS in people with type 1 and type 2 diabetes.Secondary objectives were:To use validated taxonomies of QI intervention strategies and behaviour change techniques (BCTs) to code the description of interventions in the included studies and determine whether interventions that include particular QI strategies or component BCTs are more effective in increasing screening attendance;To explore heterogeneity in effect size within and between studies to identify potential explanatory factors for variability in effect size;To explore differential effects in subgroups to provide information on how equity of screening attendance could be improved;To critically appraise and summarise current evidence on the resource use, costs and cost effectiveness...
January 15, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29321380/renin-angiotensin-aldosterone-system-activation-in-long-standing-type-1-diabetes
#10
Julie A Lovshin, Geneviève Boulet, Yuliya Lytvyn, Leif E Lovblom, Petter Bjornstad, Mohammed A Farooqi, Vesta Lai, Leslie Cham, Josephine Tse, Andrej Orszag, Daniel Scarr, Alanna Weisman, Hillary A Keenan, Michael H Brent, Narinder Paul, Vera Bril, Bruce A Perkins, David Zi Cherney
BACKGROUND: In type 1 diabetes (T1D), adjuvant treatment with inhibitors of the renin-angiotensin-aldosterone system (RAAS), which dilate the efferent arteriole, is associated with prevention of progressive albuminuria and renal dysfunction. Uncertainty still exists as to why some individuals with long-standing T1D develop diabetic kidney disease (DKD) while others do not (DKD resistors). We hypothesized that those with DKD would be distinguished from DKD resistors by the presence of RAAS activation...
January 11, 2018: JCI Insight
https://www.readbyqxmd.com/read/29320770/long-term-survivor-characteristics-in-hemodialysis-patients-with-type-2-diabetes
#11
Susanne Triebswetter, Lena J Gutjahr-Lengsfeld, Kay-Renke Schmidt, Christiane Drechsler, Christoph Wanner, Vera Krane
BACKGROUND: Data concerning long-term mortality predictors among large, purely diabetic hemodialysis collectives are scarce. METHODS: We used data from a multicenter, prospective, randomized trial among 1,255 hemodialysis patients with type 2 diabetes mellitus (T2DM) and its observational follow-up study. The association of 10 baseline candidate variables with mortality was assessed by Cox proportional hazards regression. RESULTS: Overall, 103 participants survived the median follow-up of 11...
January 10, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29318218/potential-benefit-associated-with-delaying-initiation-of-hemodialysis-in-a-japanese-cohort
#12
Satoshi Higuchi, Izaya Nakaya, Kazuhiro Yoshikawa, Yoichiro Chikamatsu, Ken-Ei Sada, Suguru Yamamoto, Satoko Takahashi, Hiroyo Sasaki, Jun Soma
Introduction: Late referral to a nephrologist, the type of vascular access, nutritional status, and the estimated glomerular filtration rate (eGFR) at the start of hemodialysis (HD) have been reported as independent risk factors of survival for patients who begin HD. The aim of this study was to clarify the influence of the HD-free interval from the time of an eGFR of 10 ml/min per 1.73 m2 (IGFR10-HD) on patient outcome. Methods: We enrolled 124 patients aged older than 20 years who had HD initiated in a general hospital...
July 2017: KI Reports
https://www.readbyqxmd.com/read/29317447/improving-1-year-outcomes-of-infrainguinal-limb-revascularisation-a-population-based-cohort-study-of-104-000-patients-in-england
#13
Katriina Heikkila, David C Mitchell, Ian M Loftus, Amundeep S Johal, Sam Waton, David A Cromwell
Background -The availability and diversity of lower limb revascularisation procedures have increased in England in the past decade. We investigated whether these developments in care have translated to improvements in patient pathways and outcomes. Methods -Individual-patient records from Hospital Episode Statistics (HES) were used to identify 103 934 patients who underwent endovascular (angioplasty) or surgical (endarterectomy, profundaplasty or bypass) lower limb revascularisation for infrainguinal peripheral artery disease (PAD) in England between January 2006 and December 2015...
January 9, 2018: Circulation
https://www.readbyqxmd.com/read/29313565/utilization-of-the-lipid-lowering-therapies-in-outpatient-settings-in-poland-epidemiological-survey-economedica-dyslipidemia-2015
#14
Filip M Szymański, Anna E Płatek, Anna Ryś, Karolina Semczuk-Kaczmarek, Bartosz Krzowski, Katarzyna Wróbel, Krzysztof J Filipiak
BACKGROUND: Dyslipidemia, especially elevated low-density lipoprotein (LDL) cholesterol is one of the most important cardiovascular risk factors. Treatment of dyslipidemia and prevention of cardiovascular disease with lipid-lowering drugs is one of the key issues in reducing cardiovascular mortality. Nevertheless, underutilization of statins and lipid-lowering drugs is still a problem globally. AIM: The present study aimed to describe the utilization of lipid-lowering drugs in groups of patients with indications for statin treatment and elevated LDL cholesterol...
January 9, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29313442/osteoprotegerin-concentration-is-associated-with-the-presence-and-severity-of-peripheral-arterial-disease-in-type-2-diabetes-mellitus
#15
Katarína Demková, Miriam Kozárová, Zuzana Malachovská, Martin Javorský, Ivan Tkáč
BACKGROUND: Osteoprotegerin plays a role in the development of several bone diseases. In addition, osteoprotegerin may contribute to the development of vascular disease. Little is known about the association between serum osteoprotegerin levels and the presence or severity of peripheral arterial disease (PAD). The aim of this study was to examine the association between serum osteoprotegerin levels and both the presence as well as the severity of lower extremity arterial disease in patients with type 2 diabetes (T2DM)...
January 9, 2018: VASA. Zeitschrift Für Gefässkrankheiten
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
#16
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/29306457/cost-effectiveness-of-pcsk9-inhibition-in-addition-to-standard-lipid-lowering-therapy-in-patients-at-high-risk-for-vascular-disease
#17
Manon C Stam-Slob, Yolanda van der Graaf, Anthonius de Boer, Jacoba P Greving, Frank L J Visseren
BACKGROUND: As proprotein convertase subtilisin-kexin type 9 (PCSK9) monoclonal antibodies are entering the market, we assessed the cost-effectiveness of PCSK9 inhibition added to standard lipid-lowering therapy in patient groups at high risk for major adverse cardiovascular events (MACE). METHODS: A lifetime Markov Model was designed to estimate healthcare costs, quality-adjusted life years (QALYs) and incremental cost-effectiveness ratios (ICERs) for PCSK9 inhibition added to standard therapy in patients with Familial Hypercholesterolemia (FH), patients with vascular disease at high MACE recurrence risk, and patients with vascular disease with diabetes mellitus...
February 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29301787/akt2-stabilizes-atp7a-a-copper-transporter-for-sod3-extracellular-superoxide-dismutase-in-vascular-smooth-muscles-novel-mechanism-to-limit-endothelial-dysfunction-in-type-2-diabetes-mellitus
#18
Varadarajan Sudhahar, Mustafa Nazir Okur, Zsolt Bagi, John P O'Bryan, Nissim Hay, Ayako Makino, Vijay S Patel, Shane A Phillips, David Stepp, Masuko Ushio-Fukai, Tohru Fukai
OBJECTIVE: Copper transporter ATP7A (copper-transporting/exporting ATPase) is required for full activation of SOD3 (extracellular superoxide dismutase), which is secreted from vascular smooth muscle cells (VSMCs) and anchors to endothelial cell surface to preserve endothelial function by scavenging extracellular superoxide. We reported that ATP7A protein expression and SOD3 activity are decreased in insulin-deficient type 1 diabetes mellitus vessels, thereby, inducing superoxide-mediated endothelial dysfunction, which are rescued by insulin treatment...
January 4, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29295870/effect-of-liraglutide-on-atrial-natriuretic-peptide-adrenomedullin-and-copeptin-in-pcos
#19
Signe Frøssing, Malin Nylander, Caroline Kistorp, Sven O Skouby, Jens Faber
CONTEXT: Women with polycystic ovary syndrome (PCOS) have an increased risk of cardiovascular disease (CVD), and biomarkers can be used to detect early subclinical CVD. Midregional-pro-adrenomedullin (MR-proADM), midregional-pro-atrial natriuretic peptide (MR-proANP) and copeptin are all associated with CVD and part of the delicate system controlling fluid and hemodynamic homeostasis through vascular tonus and diuresis. The GLP-1 receptor agonist liraglutide, developed for treatment of type 2 diabetes (T2D), improves cardiovascular outcomes in patients with T2D including a decrease in particular MR-proANP...
January 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29290003/inhibition-of-vegf-signaling-reduces-diabetes-exacerbated-brain-swelling-but-not-infarct-size-in-large-cerebral-infarction-in-mice
#20
Eunhee Kim, Jiwon Yang, Keun Woo Park, Sunghee Cho
In light of repeated translational failures with preclinical neuroprotection-based strategies, this preclinical study reevaluates brain swelling as an important pathological event in diabetic stroke and investigates underlying mechanism of the comorbidity-enhanced brain edema formation. Type 2 (mild), type 1 (moderate), and mixed type 1/2 (severe) diabetic mice were subjected to transient focal ischemia. Infarct volume, brain swelling, and IgG extravasation were assessed at 3 days post-stroke. Expression of vascular endothelial growth factor (VEGF)-A, endothelial-specific molecule-1 (Esm1), and the VEGF receptor 2 (VEGFR2) was determined in the ischemic brain...
December 30, 2017: Translational Stroke Research
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