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https://www.readbyqxmd.com/read/28550608/shifting-paradigms-in-the-medical-management-of-type-2-diabetes-reflections-on-recent-cardiovascular-outcome-trials
#1
Faramarz Ismail-Beigi, Etie Moghissi, Mikhail Kosiborod, Silvio E Inzucchi
An important challenge in the management of patients with type 2 diabetes is cardiovascular disease (CVD) prevention. While it is well established that intensive glycemic control prevents the onset and slows the progression of certain microvascular complications, such a strategy utilized in multiple clinical trials over the past few decades has failed to show a similar benefit with regard to cardiovascular events, including mortality. Despite this, a major hope has been the discovery of glucose-lowering medications that simultaneously improve cardiovascular outcomes...
May 26, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28550361/prolyl-hydroxylase-inhibition-induces-sdf-1-associated-with-increased-cxcr4-cd11b-subpopulations-and-cardiac-repair
#2
Santhosh Kumar Ghadge, Moritz Messner, Thi Van Pham, Maximilian Doppelhammer, Andreas Petry, Agnes Görlach, Britta Husse, Wolfgang-Michael Franz, Marc-Michael Zaruba
SDF-1/CXCR4 activation facilitates myocardial repair. Therefore, we aimed to activate the HIF-1α target genes SDF-1 and CXCR4 by dimethyloxalylglycine (DMOG)-induced prolyl-hydroxylase (PH) inhibition to augment CXCR4+ cell recruitment and myocardial repair. SDF-1 and CXCR4 expression was analyzed under normoxia and ischemia ± DMOG utilizing SDF-1-EGFP and CXCR4-EGFP reporter mice. In bone marrow and heart, CXCR4-EGFP was predominantly expressed in CD45+/CD11b+ leukocytes which significantly increased after myocardial ischemia...
May 26, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28550346/differential-microvascular-assessment-of-retinal-vein-occlusion-with-coherence-tomography-angiography-and-fluorescein-angiography-a-blinded-comparative-study
#3
Chung Yee Chung, Heather Hoi Yau Tang, Siu Hung Li, Kenneth Kai Wang Li
PURPOSE: To compare the imaging of retinal vein occlusion (RVO) with optical coherence tomography angiography (OCTA) and fluorescein angiography (FA) and evaluate their roles in clinical management. METHODS: RVO patients who underwent imaging with both FA and OCTA from 1 June 2015-31 December 2015 were enrolled. An independent retinal specialist blinded from patient identity assessed the FA and OCTA reports. The pixel counting technique was used for FAZ size measurement...
May 26, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28550242/impact-of-groin-flap-ischemia-reperfusion-on-red-blood-cell-micro-rheological-parameters-in-a-follow-up-study-on-rats
#4
Zsuzsanna Magyar, Abel Molnar, David Belkin Nachmias, Din Mann, Viktoria Sogor, Anita Mester, Katalin Peto, Norbert Nemeth
BACKGROUND: Flap hypoperfusion or ischemia-reperfusion (I/R) may occur during preparation-transposition procedures and by postoperative thrombotic complications. Behind the microcirculatory disturbances micro-rheological alterations are also supposed. OBJECTIVE: We aimed to investigate the groin flap I/R with following-up micro-rheological parameters. METHODS: Anesthetized rats were subjected to Control or I/R groups. Groin flaps were prepared bilaterally, pedicled on the superficial epigastric vessels...
May 24, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28550173/experimental-cardiac-radiation-exposure-induces-ventricular-diastolic-dysfunction-with-preserved-ejection-fraction
#5
Hirofumi Saiki, Gilles Moulay, Adam J Guenzel, Weibin Liu, Teresa Decklever, Kelly Classic, Linh Pham, Horng H Chen, John C Burnett, Stephen J Russell, Margaret M Redfield
BACKGROUND: Breast cancer radiotherapy increases the risk of heart failure (HF) with preserved ejection fraction (HFpEF). Cardiomyocytes are highly radio-resistant but radiation specifically affects coronary microvascular endothelial cells with subsequent microvascular inflammation and rarefaction. The effects of radiation on left ventricular (LV) diastolic function are poorly characterized. We hypothesized that cardiac radiation exposure may result in diastolic dysfunction without reduced EF...
May 26, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28550041/central-nervous-system-involvement-in-acute-lymphoblastic-leukemia-is-mediated-by-vascular-endothelial-growth-factor
#6
Vera Münch, Luca Trentin, Julia Herzig, Salih Demir, Felix Seyfried, Johann M Kraus, Hans A Kestler, Rolf Köhler, Thomas F E Barth, Geertruy Te Kronnie, Klaus-Michael Debatin, Lüder H Meyer
In acute lymphoblastic leukemia (ALL), central nervous system (CNS) involvement is a major clinical concern. Despite non-detectable CNS leukemia in many cases, prophylactic CNS-directed conventional intrathecal chemotherapy is required for relapse free survival indicating subclinical CNS manifestation in most patients. However, CNS-directed therapy is associated with long-term sequelae including neurocognitive deficits and secondary neoplasms. Therefore, molecular mechanisms and pathways mediating leukemia cell entry into the CNS need to be understood in order to identify targets for prophylactic and therapeutic interventions and develop alternative CNS-directed treatment strategies...
May 26, 2017: Blood
https://www.readbyqxmd.com/read/28549973/targeted-delivery-of-rosmarinic-acid-across-the-blood-brain-barrier-for-neuronal-rescue-using-polyacrylamide-chitosan-poly-lactide-co-glycolide-nanoparticles-with-surface-cross-reacting-material-197-and-apolipoprotein-e
#7
Yung-Chih Kuo, Rajendiran Rajesh
Rosmarinic acid-loaded polyacrylamide-chitosan-poly(lactide-co-glycolide) nanoparticles (RA-PAAM-CH-PLGA NPs) were grafted with cross-reacting material 197 (CRM197) and apolipoprotein E (ApoE) for targeting of the blood-brain barrier (BBB) and rescuing degenerated neurons. The polymeric nanocarriers were prepared by microemulsion, solvent diffusion, grafting, and surface modification, and CRM197-ApoE-RA-PAAM-CH-PLGA NPs were used to treat human brain-microvascular endothelial cells, RWA264.7 cells, and Aβ-insulted SK-N-MC cells...
May 23, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28549754/predictive-value-of-magnetic-resonance-for-identifying-neurovascular-compressions-in-trigeminal-neuralgia
#8
F Ruiz-Juretschke, J G Guzmán-de-Villoria, R García-Leal, J R Sañudo
INTRODUCTION: Microvascular decompression (MVD) is accepted as the only aetiological surgical treatment for refractory classic trigeminal neuralgia (TN). There is therefore increasing interest in establishing the diagnostic and prognostic value of identifying neurovascular compressions (NVC) using preoperative high-resolution three-dimensional magnetic resonance (MRI) in patients with classic TN who are candidates for surgery. METHODS: This observational study includes a series of 74 consecutive patients with classic TN treated with MVD...
May 23, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28548925/immunological-consequences-of-ageing-microvascular-hemodynamic-changes-in-view-of-cancer-development-and-treatment
#9
REVIEW
Jinhyuk Fred Chung, Sang Joon Lee, Anil K Sood
Risk factors of cardiovascular diseases have long been implicated as risk factors for carcinogenesis, but clear explanations for their association have not been presented. In this article, fundamental concepts from carcinogenesis, microvascular hemodynamics, and immunity are collectively reviewed and analyzed in context of the known features of vascular ageing effects, in formulating a theory that suggests reduced microvascular immunity as an important driving factor for carcinogenesis. Furthermore, scientific, preclinical, and clinical evidence that support this new theory are presented in an interdisciplinary manner, offering new explanations to previously unanswered factors that impact cancer risks and its treatment outcome such as chronic drug use, temperature, stress and exercise effects among others...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548628/endothelial-progenitor-cells-for-the-vascularization-of-engineered-tissues
#10
Erica Brown Peters
Self-assembled microvasculature from cocultures of endothelial cells and stromal cells have significantly advanced efforts to vascularize engineered tissues by enhancing perfusion rates <i>in vivo</i> and producing investigative platforms for microvascular morphogenesis <i>in vitro</i>. However, in order to clinically translate prevascularized constructs, the issue of endothelial cell source must be resolved. Endothelial progenitor cells (EPCs) can be noninvasively supplied from the recipient through adult peripheral and umbilical cord blood, as well as derived from induced pluripotent stem cells, alleviating antigenicity issues...
May 26, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28548478/influencing-of-antioxidants-gene-variants-on-risk-of-diabetes-mellitus-and-its-complications-a-systematic-review
#11
Fatemeh Bitarafan, Mehrnoosh Khodaeian, Ozra Tabatabaei-Malazy, Mahsa M Amoli
INTRODUCTION: Oxidative stress has a key role in pathophysiology of type 2 diabetes mellitus (T2DM) and its complications as a most common health problem. Due to controversial evidence regarding the association between antioxidants' gene varients and T2DM, our aim was a systematic review of the current meta-analyses. EVIDENCE ACQUISTION: All meta-analysis' studies which assessed the association of single nucleotide polymorphisms of superoxide dismutase (SOD), catalase, glutathione peroxidase (GPX), glutathione S transferase (GST), nitric oxide synthase (NOS) and nicotinamide adenine dinucleotide phosphate oxidase (NOX) with T2DM and its complications were systematically extracted from PubMed, Scopus and Web of Science databases up to January 2016...
May 26, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28546658/endothelial-alterations-in-systemic-lupus-erythematosus-and-rheumatoid-arthritis-potential-effect-of-monocyte-interaction
#12
REVIEW
Laura Atehortúa, Mauricio Rojas, Gloria M Vásquez, Diana Castaño
Patients with systemic autoimmune diseases such as rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE) are prone to develop atherosclerosis and cardiovascular diseases five times more often than the general population; this increase in frequency could be partially explained by an increase in the macrovasculature endothelial damage. In these autoimmune diseases, a microvascular endothelial injury has also been reported in different organs and tissues, especially in sites where ultrafiltration processes occur...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28546096/bone-disease-in-diabetes-another-manifestation-of-microvascular-disease
#13
REVIEW
Vikram V Shanbhogue, Stinus Hansen, Morten Frost, Kim Brixen, Anne P Hermann
Type 1 and type 2 diabetes are generally accepted to be associated with increased bone fracture risk. However, the pathophysiological mechanisms of diabetic bone disease are poorly understood, and whether the associated increased skeletal fragility is a comorbidity or a complication of diabetes remains under debate. Although there is some indication of a direct deleterious effect of microangiopathy on bone, the evidence is open to question, and whether diabetic osteopathy can be classified as a chronic, microvascular complication of diabetes remains uncertain...
May 22, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28545894/post-occlusive-reactive-hyperaemia-of-skin-microvasculature-and-foot-complications-in-type-2-diabetes
#14
Sean M Lanting, Alex L Barwick, Stephen M Twigg, Nathan A Johnson, Michael K Baker, Simon K Chiu, Ian D Caterson, Vivienne H Chuter
AIMS: Diabetes-related microvascular disease has been implicated in the development of foot ulceration and amputation. Assessment of microvascular function may be effective in identifying those at risk of diabetic foot complications. We investigated the relationship between active or previous foot complication and post-occlusive reactive hyperaemia (PORH) measured by laser-Doppler fluxmetry (LDF) in people with type 2 diabetes. METHODS: PORH measures were obtained from the hallux apex in 105 people with type 2 diabetes...
May 14, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28545858/hemocoagulase-combined-with-microbubble-enhanced-ultrasound-cavitation-for-augmented-ablation-of-microvasculature-in-rabbit-vx2-liver-tumors
#15
Qian Yang, Peng Tang, Guangbin He, Shuping Ge, Liwen Liu, Xiaodong Zhou
We investigated a new method for combining microbubble-enhanced ultrasound cavitation (MEUC) with hemocoagulase (HC) atrox. Our goal was to induce embolic effects in the vasculature and combine these with an anti-angiogenic treatment strategy. Fourteen days after being implanted with a single slice of the liver VX2 tumor, rabbits were randomly divided into five groups: (i) a control group injected intra-venously with saline using a micropump; (ii) a group given only an injection of HC; (iii) a group treated only with ultrasound cavitation; (iv) a group treated with MEUC; (v) a group treated with MEUC + HC...
May 22, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28545355/emerging-trends-on-drug-delivery-strategy-of-momordica-charantia-against-diabetes-and-its-complications
#16
Zar Chi Thent, Srijit Das, Nurul Hannim Zaidun
The incidence of diabetes mellitus has increased drastically over the past few decades. This oxidant-antioxidant imbalance resulting in complication of diabetes mellitus includes macro- and microvascular complications. Resistance to conventional treatment and patient compliance has paved the way to the usage of effective natural products and supplements. Momordica charantia (bitter gourd) is widely consumed in many parts of Malaysia as a vegetable. Momordica charantia (MC) is mainly used in the management of diabetes mellitus...
May 25, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28545027/mir-486-5p-negatively-regulates-oncogenic-nek2-in-hepatocellular-carcinoma
#17
Shun-Jun Fu, Jian Chen, Fei Ji, Wei-Qiang Ju, Qiang Zhao, Mao-Gen Chen, Zhi-Yong Guo, Lin-Wei Wu, Yi Ma, Dong-Ping Wang, Xiao-Feng Zhu, Xiao-Shun He
NEK2 is a member of the NIMA-related family of serine/threonine centrosomal kinases. We analyzed the relationship between differential expression of NEK2 and hepatocellular carcinoma (HCC) patient outcomes after liver transplants. We also studied the microRNAs that affect NEK2 expression. Analysis of multiple microarrays in the Oncomine database revealed that NEK2 expression was higher in HCC tissues than adjacent normal liver tissues. High NEK2 expression correlated with tumor size, pathological grade and macro- and microvascular invasion...
May 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544968/clinical-usefulness-of-videocapillaroscopy-and-selected-endothelial-cell-activation-markers-in-people-with-type-1-diabetes-mellitus-complicated-by-microangiopathy
#18
Anna Kuryliszyn-Moskal, Wieslaw Zarzycki, Artur Dubicki, Diana Moskal, Bozena Kosztyła-Hojna, Anna Hryniewicz
PURPOSE: Microvascular abnormalities are one of the most important causes of persistent diabetic complications. The aim of our study was to compare microvascular changes examined by nailfold videocapillaroscopy (NVC) examination with serum concentrations of vascular endothelial growth factor (VEGF), soluble thrombomodulin (sTM) and endothelin-1 (ET-1) in people with Type 1 diabetes with and without microangiopathy. MATERIAL/METHODS: The study included 106 people with Type 1 diabetes and 40 healthy controls...
May 22, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28544587/drop-out-rate-from-the-liver-transplant-waiting-list-due-to-hcc-progression-in-hcv-infected-patients-treated-with-direct-acting-antivirals
#19
Alberto Zanetto, Sarah Shalaby, Alessandro Vitale, Claudia Mescoli, Alberto Ferrarese, Martina Gambato, Enrica Franceschet, Giacomo Germani, Marco Senzolo, Antonietta Romano, Paolo Angeli, Massimo Rugge, Fabio Farinati, Daniel M Forton, Umberto Cillo, Patrizia Burra, Francesco Paolo Russo
BACKGROUND & AIM: concerns about an increased hepatocellular carcinoma (HCC) recurrence rate following directly acting antiviral (DAA) therapy in cirrhotic patients with a prior complete oncological response have been raised. Data regarding the impact of HCV-treatment with DAAs on waiting list drop-out rates in patients with active HCC and HCV-related cirrhosis awaiting liver transplantation (LT) are lacking. MATERIALS AND METHODS: HCV-HCC patients listed for LT between January 2015 and May 2016 at Padua Liver Transplant Centre were considered eligible for the study...
May 22, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28544543/acute-toll-like-receptor-4-activation-impairs-rat-renal-microvascular-autoregulatory-behaviour
#20
Justin P Van Beusecum, Shali Zhang, Anthony K Cook, Edward W Inscho
AIM: Little is known about how toll-like receptor 4 (TLR4) influences the renal microvasculature. We hypothesized that acute TLR4 stimulation with lipopolysaccharide (LPS) impairs afferent arteriole autoregulatory behaviour, partially through reactive oxygen species (ROS). METHODS: We assessed afferent arteriole autoregulatory behaviour after LPS treatment (1 mg kg(-1) ; i.p.) using the in vitro blood perfused juxtamedullary nephron preparation. Autoregulatory behaviour was assessed by measuring diameter responses to step-wise changes in renal perfusion pressure...
May 25, 2017: Acta Physiologica
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