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https://www.readbyqxmd.com/read/27923263/microparticles-and-fibrinolysis
#1
Loris Vallier, Sylvie Cointe, Romaric Lacroix, Amandine Bonifay, Coralie Judicone, Françoise Dignat-George, Hau C Kwaan
Microparticles (MPs) are submicronic vesicles which are formed by budding of the cellular membrane of virtually any cell type in response to cell activation or apoptosis. Both circulating MPs and MPs generated within tissues harbor molecules with a large repertoire of biological activities and transfer material to target cells. Depending on their cellular origin, the stimuli triggering their formation, or their localization, they may participate in the maintenance of organ or vascular homeostasis as well as inducing dysfunction...
December 6, 2016: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/27922752/abnormal-glucose-metabolism-and-high-energy-expenditure-in-idiopathic-pulmonary-arterial-hypertension
#2
Gustavo A Heresi, Steven K Malin, Jarrod W Barnes, Liping Tian, John P Kirwan, Raed A Dweik
RATIONALE: Insulin resistance has emerged as a potential mechanism related to the pathogenesis of idiopathic pulmonary arterial hypertension (IPAH). However, direct measurements of insulin and glucose metabolism have not been performed in IPAH patients to date. OBJECTIVES: To perform comprehensive metabolic phenotyping on humans with IPAH. METHODS: We assessed plasma insulin and glucose using an oral glucose tolerance test and estimated insulin resistance and beta-cell function in 14 IPAH patients and 14 controls matched for age, sex, blood pressure, and body mass index (BMI),...
December 6, 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27922551/sphingosine-1-phosphate-s1p-a-potential-biomarker-and-therapeutic-target-for-endothelial-dysfunction-and-sepsis
#3
Martin S Winkler, Axel Nierhaus, Annika Poppe, Gillis Greiwe, Markus Gräler, Guenter Daum
Sepsis is an acute life-threatening multiple organ failure caused by a dysregulated host response to infection. Endothelial dysfunction, particularly barrier disruption leading to increased vascular permeability, edema and insufficient tissue oxygenation is critical to sepsis pathogenesis. Sphingosine-1-phosphate (S1P) is a signaling lipid that regulates important pathophysiological processes including vascular endothelial cell permeability, inflammation and coagulation. It is present at high concentrations in blood and lymph and at very low concentrations in tissues due to the activity of the S1P-degrading enzyme S1P-lyase in tissue cells...
December 2, 2016: Shock
https://www.readbyqxmd.com/read/27921431/-short-term-and-long-term-glycemic-variability-and-its-relationship-to-microvascular-complications-of-diabetes
#4
Martin Prázný, Jan Škrha, Jan Šoupal, Jan Škrha Jr
Vascular complications of diabetes result from long lasting unsatisfactory glycemic control. We usually assess glycemic control based on the value of glycated hemoglobin HbA1c. The glycated hemoglobin test, however, says nothing about short-term glycemic fluctuations. Recently, continuous monitoring of glycemia has enabled us an in-depth assessment of changes in glucose concentrations, called glycemic variability. In connection with the research into short-term glycemic variability, also the study of long-term fluctuations in glycemic control based on HbA1c variability has now intensified...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27921202/endogenous-stem-cells-were-recruited-by-defocused-low-energy-shock-wave-in-treating-diabetic-bladder-dysfunction
#5
Yang Jin, Lina Xu, Yong Zhao, Muwen Wang, Xunbo Jin, Haiyang Zhang
Defocused low-energy shock wave (DLSW) has been shown effects on activating mesenchymal stromal cells (MSCs) in vitro. In this study, recruitment of endogenous stem cells was firstly examined as an important pathway during the healing process of diabetic bladder dysfunction (DBD) treated by DLSW in vivo. Neonatal rats received intraperitoneal injection of 5-ethynyl-2-deoxyuridine (EdU) and then DBD rat model was created by injecting streptozotocin. Four weeks later, DLSW treatment was performed. Afterward, their tissues were examined by histology...
December 5, 2016: Stem Cell Reviews
https://www.readbyqxmd.com/read/27921043/metabolic-vascular-syndrome-new-insights-into-a-multidimensional-network-of-risk-factors-and-diseases
#6
REVIEW
Gerhard H Scholz, Markolf Hanefeld
BACKGROUND: Since 1981, we have used the term metabolic syndrome to describe an association of a dysregulation in lipid metabolism (high triglycerides, low high-density lipoprotein cholesterol, disturbed glucose homeostasis (enhanced fasting and/or prandial glucose), gout, and hypertension), with android obesity being based on a common soil (overnutrition, reduced physical activity, sociocultural factors, and genetic predisposition). We hypothesized that main traits of the syndrome occur early and are tightly connected with hyperinsulinemia/insulin resistance, procoagulation, and cardiovascular diseases...
October 2016: Visceral Medicine
https://www.readbyqxmd.com/read/27920727/genetic-targeting-of-arginase-ii-in-mouse-prevents-renal-oxidative-stress-and-inflammation-in-diet-induced-obesity
#7
Ji Huang, Angana Rajapakse, Yuyan Xiong, Jean-Pierre Montani, François Verrey, Xiu-Fen Ming, Zhihong Yang
Obesity is associated with development and progression of chronic kidney disease (CKD). Recent evidence demonstrates that enhanced levels of the L-arginine:ureahydrolase, including the two isoenzymes arginase-I (Arg-I) and arginase-II (Arg-II) in vascular endothelial cells promote uncoupling of endothelial nitric oxide synthase (eNOS), leading to increased superoxide radical anion and decreased NO production thereby endothelial dysfunction. Arg-II but not Arg-I is abundantly expressed in kidney and the role of Arg-II in CKD is uncertain and controversial...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27920343/epidermal-growth-factor-rescues-endothelial-dysfunction-in-primary-human-tissues-in-vitro
#8
Roxanne Hastie, Stephen Tong, Natalie J Hannan, Fiona Brownfoot, Ping Cannon, Tu'uhevaha J Kaitu'u-Lino
Preeclampsia is a hypertensive disorder of pregnancy, responsible for over 60 000 maternal deaths annually. Endothelial dysfunction is a central aspect to its pathophysiology, and currently, no medical therapeutic is available for its treatment. In this study, we aim to investigate the effect of epidermal growth factor (EGF) on endothelial dysfunction using primary human tissues. We performed a number of in vitro assays that mimic the vascular endothelial dysfunction that occurs in preeclampsia. Epidermal growth factor reduced the expression of vascular cell adhesion molecule-1, a marker of endothelial dysfunction, after insult with tumor necrosis factor α (TNF-α) or serum from women with preeclampsia...
December 5, 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27918592/microrna-497-induces-apoptosis-and-suppresses-proliferation-via-the-bcl-2-bax-caspase9-caspase3-pathway-and-cyclin-d2-protein-in-huvecs
#9
Ridong Wu, Shi Tang, Mian Wang, Xiangdong Xu, Chen Yao, Shenming Wang
INTRODUCTION: MicroRNAs play crucial roles in various types of diseases. However, to date, no information about the role of miR-497 in the development of atherosclerosis has been reported. This study investigated the possible role of miR-497 in vascular endothelial cell injury during the early stage of atherosclerosis. MATERIALS AND METHODS: The expression level of miR-497 in human umbilical vein endothelial cells (HUVECs) exposed to ox-LDL was detected using qRT-PCR...
2016: PloS One
https://www.readbyqxmd.com/read/27917469/association-of-dysfunctional-synapse-defective-1-syde1-with-restricted-fetal-growth-syde1-regulates-placental-cell-migration-and-invasion
#10
Hsiao-Fan Lo, Ching-Yen Tsai, Chie-Pein Chen, Liang-Jie Wang, Yun-Shien Lee, Chia-Yu Chen, Chung-Tiang Liang, Mei-Leng Cheong, Hungwen Chen
The transcription factor glial cells missing 1 (GCM1) regulates trophoblast differentiation and function during placentation. Decreased GCM1 expression is associated with preeclampsia, suggesting that abnormal expression of GCM1 target genes may contribute to the pathogenesis of pregnancy complications. Here we identified a novel GCM1 target gene, synapse defective 1 (SYDE1), which encodes a RhoGAP that is highly expressed in human placenta, and demonstrated that SYDE1 promotes cytoskeletal remodelling and cell migration and invasion...
December 5, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27916655/allopurinol-as-a-therapeutic-option-in-cardiovascular-disease
#11
REVIEW
Osita N Okafor, K Farrington, Diana A Gorog
Epidemiological studies indicate that hyperuricaemia is an independent risk factor for cardiovascular disease. Alongside uric acid formation, increased xanthine oxidase activity also results in the formation of oxidative free radicals and superoxide particles. Oxidative stress significantly contributes to the development of cardiovascular disease, including endothelial cell dysfunction, atherosclerosis, vascular calcification and impaired myocardial energetics. Allopurinol, a competitive xanthine oxidase inhibitor, in addition to reducing serum uric acid levels, can act as a free radical scavenger...
December 1, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27915422/state-of-the-art-review-of-the-right-ventricle-in-copd-patients-it-is-time-to-look-closer
#12
REVIEW
Daniela Graner Schuwartz Tannus-Silva, Marcelo Fouad Rabahi
Since the first description of pulmonary circulation in the 16th century, the knowledge of the complex interaction between the heart and lungs has greatly improved. Hypoxemia plays a classical role in the development of complications such as pulmonary hypertension and right ventricle (RV) dysfunction in patients presenting with chronic obstructive pulmonary disease (COPD). However, more recent results have revealed the presence of RV vascular structural and functional changes even in patients with mild COPD, without hypoxemia or pulmonary hypertension at rest...
December 3, 2016: Lung
https://www.readbyqxmd.com/read/27915246/neutrophil-dependent-pentraxin-3-and-reactive-oxygen-species-production-modulate-endothelial-dysfunction-in-haemodialysis-patients
#13
Maria Pia dell'Oglio, Simona Simone, Marco Ciccone, Roberto Corciulo, Michele Gesualdo, Annapaola Zito, Francesca Cortese, Giuseppe Castellano, Margherita Gigante, Loreto Gesualdo, Giuseppe Grandaliano, Giovanni Battista Pertosa
BACKGROUND: The aim of this study was to investigate neutrophil activation and its role in long pentraxin-3 (PTX3) release and oxidative stress generation during haemodialysis (HD) and to correlate neutrophil PTX3 and oxidant expression with endothelial dysfunction. METHODS: Forty-seven uraemic patients on stable HD, 12 healthy subjects and 15 patients with congestive heart failure (New York Heart Association classes III and IV) were enrolled. Neutrophil PTX3 protein expression was evaluated by confocal microscopy...
December 3, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27915034/atheroprotective-role-of-caveolin-1-and-enos-in-an-innovative-transplantation-model-is-mainly-mediated-by-local-effects
#14
Johannes Mierke, Marian Christoph, Christian Pfluecke, Stefanie Jellinghaus, Carsten Wunderlich, Ruth H Strasser, Karim Ibrahim, David M Poitz
Endothelial dysfunction is crucial in the initiation of atherosclerosis, which is associated with a lack of nitric oxide. The endothelial NO synthase (eNOS) is responsible for constitutive synthesis of NO and inhibited by caveolin-1 (Cav1). In the current study, we examined the influence on intima formation through single and combined deletion of eNOS and Cav1 with a focus on differentiation of local and systemic effects. A sex-mismatch transplantation of denudated aortae from female C57BL/6n (WT), Cav1(-/-), eNOS(-/-) and Cav1(-/-)/eNOS(-/-) (C/e(--/--)) mice in common carotid artery of male WT mice was performed...
November 30, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27914866/co-signaling-molecules-in-maternal-fetal-immunity
#15
REVIEW
Yuan-Yuan Xu, Song-Cun Wang, Da-Jin Li, Mei-Rong Du
Physiologically, a successful pregnancy requires the maternal immune system to recognize and tolerate the semiallogeneic fetus, and allow for normal invasion of trophoblasts. Thus, pregnancy complications are considered to be associated with dysfunctional maternal-fetal crosstalk. Co-signaling molecules are a group of cell surface molecules that positively or negatively modulate the immune response. Well studied in the fields of oncology and transplantation, they are also suggested to be involved in maternal-fetal crosstalk...
November 30, 2016: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/27914613/association-between-cardiometabolic-index-and-erectile-dysfunction-a-new-index-for-predicting-cardiovascular-disease
#16
Murat Dursun, Huseyin Besiroglu, Alper Otunctemur, Emin Ozbek
Over the past decade, it has been suggested that erectile dysfunction (ED) is an early indicator of cardiovascular disease. In a recent study, a new index, termed as cardiometabolic index (CMI), was defined and measured as the product of triglyceride (TG)/high-density lipoprotein-cholesterol (HDL-C) ratio and waist-to-height ratio, which are good predictors of coronary artery disease and main components of metabolic syndrome (MetS). All components of the CMI are also included in MetS criteria. Thus, we decided to evaluate the correlation between CMI, including the criteria of MetS, and ED...
December 2016: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/27913605/non-alcoholic-fatty-liver-disease-is-associated-with-early-left-ventricular-dysfunction-in-childhood-acute-lymphoblastic-leukaemia-survivors
#17
Maurizio Delvecchio, Paola Muggeo, Mariantonietta Monteduro, Giuseppe Lassandro, Chiara Novielli, Federica Valente, Emanuela Salinaro, Annapaola Zito, Marco Matteo Ciccone, Vito Leonardo Miniello, Nicola Santoro, Paola Giordano, Maria Felicia Faienza
BACKGROUND: Childhood acute lymphoblastic leukaemia (ALL) survivors have an increased risk of metabolic and cardiovascular disease. We aimed to assess the presence of non-alcoholic fatty liver disease (NAFLD) in childhood ALL and if it is associated with early cardiovascular dysfunction. METHODS: In total, 53 childhood ALL survivors and 34 controls underwent auxological evaluation, biochemical assay, liver, heart and vascular ultrasound study. RESULTS: NAFLD was more frequent in ALL patients than in controls (39...
February 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27913059/cha2ds2-vasc-scores-and-major-bleeding-in-patients-with-nonvalvular-atrial-fibrillation-who-are-receiving-rivaroxaban
#18
W Frank Peacock, Sally Tamayo, Manesh Patel, Nicholas Sicignano, Kathleen P Hopf, Zhong Yuan
STUDY OBJECTIVE: Assessing stroke risk associated with nonvalvular atrial fibrillation depends on the evaluation of patient characteristics and clinical features. Clinicians must determine that the net clinical benefit from anticoagulation therapy outweighs its risk, namely, bleeding. Risk assessment for stroke is commonly performed by calculating a CHA2DS2-VASc (congestive heart failure/left ventricular dysfunction, hypertension, ≥75 years, diabetes mellitus, previous stroke or transient ischemic attack or thromboembolism, vascular disease, aged 65 to 74 years, sex female) score...
November 29, 2016: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27912147/inhibition-of-endocan-attenuates-monocrotaline-induced-connective-tissue-disease-related-pulmonary-arterial-hypertension
#19
Haiyan Zhao, Yunxin Xue, Yun Guo, Yue Sun, Dongmei Liu, Xiaofei Wang
Connective tissue disease related pulmonary arterial hypertension (CTD-PAH) is characterized by vascular remodeling, endothelial dysfunction and inflammation. Endocan is a novel endothelial dysfunction marker. The aim of the present study was to investigate the role of endocan in CTD-PAH. Monocrotaline (MCT)-induced PAH rats were used as the CTD-PAH model. Short hairpin RNA packed in a lentiviral vector used to inhibit endocan expression was intratracheally instilled in rats prior to the MCT injection. Endocan was found to be increased in the serum and lung of MCT-induced PAH rats...
November 29, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27911431/-o%C3%B1-umethyl-in-the-treatment-of-allergic-diseases-of-eyelids-and-conjunctiva
#20
N R Marchenko
Treatment of allergic diseases of eyelids and conjunctiva (conjunctivites and blepharoconjunctivites) often presents difficulties due to peculiarities of their pathogenesis - allergic and vascular reactions, disorder of lacrimal production, meibomian gland dysfunction, and possible bacterial contamination. It has been suggested to use Ocumethyl, which contains zinc sulfate (binding, drying, anti-inflammatory, and antiseptic effect), diphenhydamine hydrochloride (an Н1-antihistamine that decreases capillary permeability and helps resolve conjunctival and eyelid edema), naphazoline hydrochloride (a sympathomimetic notable for its strong, rapid, and long-lasting vasoconstrictive effect), and methylene blue (antiseptic effect, disintoxication, and antioxidant activity)...
2016: Vestnik Oftalmologii
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