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Biomarkers endothelial damage

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https://www.readbyqxmd.com/read/29164711/vitamin-e-improves-testicular-damage-in-streptozocin-induced-diabetic-rats-via-increasing-vascular-endothelial-growth-factor-and-poly-adp-ribose-polymerase-1
#1
S S Omar, R G Aly, N M Badae
The precise mechanism by which diabetes impairs spermatogenesis and testicular function is not exactly known. Vascular endothelial growth factor (VEGF) and poly(ADP-ribose) polymerase-1 (PARP-1) are important for germ cell homeostasis and repair of DNA respectively. The aim of this study was to investigate the correlation between diabetes-induced testicular damage and testicular VEGF and PARP-1 expression and the possible protective role of vitamin E supplementation. A total of 45 male Wistar albino rats were randomly divided into three groups: Group I (nondiabetic rats), Group II (streptozocin-induced diabetic rats) and Group III (streptozocin-induced diabetic rats treated orally with 0...
November 21, 2017: Andrologia
https://www.readbyqxmd.com/read/29162432/renal-damage-in-the-metabolic-syndrome-metsx-disorders-implicated
#2
REVIEW
Trujillo Joyce, Chirino Yolanda Irasema, Martínez-Tagüeña Natalia, Pedraza-Chaverri Jose
The prevalence of metabolic syndrome is increasing worldwide and has become a risk factor for the development of chronic kidney disease. The complex linkage between metabolic syndrome and chronic kidney disease is under research and the factors involved beyond the biological pathogenesis include demographic, sociological and psychological factors that are related to the metabolic syndrome prevalence. The social context of disease causation is as relevant to today's clinical scientist and practitioner as biomarker-directed risk stratification and therapy...
November 18, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29152859/deletion-of-the-egf-receptor-in-vascular-smooth-muscle-cells-prevents-chronic-angiotensin-ii-induced-arterial-wall-stiffening-and-media-thickening
#3
Barbara Schreier, Mirja Hünerberg, Sigrid Mildenberger, Sindy Rabe, Daniel Bethmann, Claudia Wickenhauser, Michael Gekle
AIM: In vivo vascular smooth muscle cell (VSMC) EGF receptor (EGFR) contributes to acute angiotensin II (AII) effects on vascular tone and blood pressure. The ubiquitously expressed EGFR has been implicated in vascular remodeling preceding end-organ damage by pharmacological inhibition, and AII signaling in cultured vascular cells is partly EGFR dependent. However the role of VSMC-EGFR in vivo during AII-induced pathophysiological processes is not known. METHODS: The present study assesses the in vivo relevance of VSMC-EGFR during chronic AII challenge without further stressors, using a mouse model with inducible, VSMC-specific EGFR knock out (VSMC-EGFR-KO)...
November 20, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/29150149/pregnancy-and-heart-disease-pregnancy-associated-hypertension-and-peripartum-cardiomyopathy
#4
Tobias Jonathan Pfeffer, Denise Hilfiker-Kleiner
Cardiovascular diseases are major complications in pregnancy worldwide and the number of patients who develop cardiac problems during pregnancy is increasing. Pregnancy-associated hypertensive complications such as pre-eclampsia (PE) or peripartum cardiomyopathy (PPCM) are potentially life-threatening heart diseases emerging during pregnancy, under delivery or in the first postpartal months in previously healthy women. Both disease entities display substantial morbidity and mortality in the acute phase. Long-term effects are just beginning to be evaluated...
October 31, 2017: Current Problems in Cardiology
https://www.readbyqxmd.com/read/29148423/non-invasive-vascular-biomarkers-in-patients-with-beh%C3%A3-et-s-disease-review-of-the-data-and-future-perspectives
#5
REVIEW
Athanase D Protogerou, Efthimia G Nasothimiou, Petros P Sfikakis, Athanasios G Tzioufas
Vascular inflammation in small to large veins and arteries contributes substantially to mortality above that of the general population in Behçet's disease. Recent data verified also the presence of accelerated classical subclinical arterial damage (atheromatosis, arteriosclerosis, arterial hypertrophy) even in patients free of overt vascular complications, and may be complementary to that of vasculitis. Early detection of such vascular damage might provide helpful pathophysiological insight and potentially even guide treatment management...
October 6, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29131327/cgrp-and-ptx3-as-predictors-of-efficacy-of-onabotulinumtoxin-type-a-in-chronic-migraine-an-observational-study
#6
Clara Domínguez, Alba Vieites-Prado, María Pérez-Mato, Tomás Sobrino, Xiana Rodríguez-Osorio, Ana López, Francisco Campos, Francisco Martínez, José Castillo, Rogelio Leira
OBJECTIVE: The aim of this study is to find a relation between several biomarkers in peripheral blood and outcome after treatment with onabotulinumtoxin A (OnabotA). BACKGROUND: OnabotA is an effective treatment in chronic migraine (CM). Different studies have tried to find predictors of response to treatment, either with clinical characteristics, neuroimaging features, or molecular biomarkers; however, it is still not possible to predict the individual outcome...
November 13, 2017: Headache
https://www.readbyqxmd.com/read/29116998/mesenchymal-stem-cells-from-bone-marrow-adipose-tissue-and-lung-tissue-differentially-mitigate-lung-and-distal-organ-damage-in-experimental-acute-respiratory-distress-syndrome
#7
Johnatas D Silva, Miquéias Lopes-Pacheco, Ana H R Paz, Fernanda F Cruz, Elga B Melo, Milena V de Oliveira, Débora G Xisto, Vera L Capelozzi, Marcelo M Morales, Paolo Pelosi, Elizabeth Cirne-Lima, Patricia R M Rocco
OBJECTIVES: Mesenchymal stem cells-based therapies have shown promising effects in experimental acute respiratory distress syndrome. Different mesenchymal stem cells sources may result in diverse effects in respiratory diseases; however, there is no information regarding the best source of mesenchymal stem cells to treat pulmonary acute respiratory distress syndrome. We tested the hypothesis that mesenchymal stem cells derived from bone marrow, adipose tissue, and lung tissue would lead to different beneficial effects on lung and distal organ damage in experimental pulmonary acute respiratory distress syndrome...
November 7, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29112510/prediction-of-postpercutaneous-coronary-intervention-myocardial-infarction-insights-from-intravascular-imaging-coronary-flow-and-biomarker-evaluation
#8
Stephen P Hoole, Jules Hernández-Sánchez, Adam J Brown, Joel P Giblett, Martin R Bennett, Nick E J West
BACKGROUND: Percutaneous coronary intervention-induced myocardial infarction (PMI) has prognostic significance. Identifying patients at high risk for PMI is desirable as it may alter strategy and facilitate early preventative therapy. We therefore sought to establish whether preprocedural demographic, interventional (plaque characteristics and coronary microcirculatory function), and inflammatory, endothelial damage, and platelet-derived biomarker data could predict the risk of PMI. PATIENTS AND METHODS: We performed target vessel pressure wire to assess fractional flow reserve, index of microcirculatory resistance (IMR) and coronary flow reserve, plaque characterization by virtual histology intravascular ultrasound, and assayed peripheral biomarkers before uncomplicated PCI in 88 patients...
November 6, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/29056520/characterization-of-immune-cell-endothelial-and-renal-responses-upon-experimental-human-endotoxemia
#9
Eveline P van Poelgeest, Marlous R Dillingh, Marieke de Kam, Karen E Malone, Marleen Kemper, Erik S G Stroes, Jacobus Burggraaf, Matthijs Moerland
INTRODUCTION: Although the effects of relatively high concentrations of endotoxin on endothelial activation/dysfunction and kidney markers has been described in literature, detailed insight in the LPS concentration-effect relationship, the magnitude, variability and timing of the response, and potential effects of endotoxemia on the kidneys is lacking. A study was performed to assess the effects of low- to moderate dose (0.5, 1 or 2ng/kg) endotoxemia on the endothelium and kidneys as measured by a panel of novel highly sensitive kidney injury markers...
October 19, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/29055824/selenium-containing-indolyl-compounds-kinetics-of-reaction-with-inflammation-associated-oxidants-and-protective-effect-against-oxidation-of-extracellular-matrix-proteins
#10
Angela M Casaril, Marta T Ignasiak, Christine Y Chuang, Beatriz Vieira, Nathalia B Padilha, Luke Carroll, Eder J Lenardão, Lucielli Savegnago, Michael J Davies
Activated white blood cells generate multiple oxidants in response to invading pathogens. Thus, hypochlorous acid (HOCl) is generated via the reaction of myeloperoxidase (from neutrophils and monocytes) with hydrogen peroxide, and peroxynitrous acid (ONOOH), a potent oxidizing and nitrating agent is formed from superoxide radicals and nitric oxide, generated by stimulated macrophages. Excessive or misplaced production of these oxidants has been linked to multiple human pathologies, including cardiovascular disease...
October 18, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29046295/free-circulating-active-elastase-contributes-to-chronic-inflammation-in-hemodialysis-patients
#11
Eman Khatib-Massalha, Regina Michelis, Beny Trabelcy, Yoram Gerchman, Batya Kristal, Amiram Ariel, Shifra Sela
Atherosclerosis and cardiovascular complications are prevalent among patients undergoing chronic hemodialysis (HD). In this population, peripheral polymorphonuclear leukocytes (PMNLs) are primed, releasing pro-inflammatory mediators, such as elastase. Elastase is normally inhibited by a specific inhibitor, avoiding undesirable degradation of cellular and extracellular components. This study tested the hypothesis that in states of non-infectious inflammation, elastase is released by PMNLs and acts in an uncontrolled manner to inflict vascular damage...
October 18, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29044294/serum-levels-of-anti-pon1-and-anti-hdl-antibodies-as-potential-biomarkers-of-premature-atherosclerosis-in-systemic-lupus-erythematosus
#12
Patricia López, Javier Rodríguez-Carrio, Aleida Martínez-Zapico, Ángel I Pérez-Álvarez, Raquel López-Mejías, Lorena Benavente, Lourdes Mozo Mozo, Luis Caminal-Montero, Miguel A González-Gay, Ana Suárez
The present study aimed to evaluate the possible role of immunoglobulin G (IgG) antibodies against high-density lipoproteins (HDL) and paraoxonase 1 (PON1) as possible biomarkers of cardiovascular disease (CVD) in systemic lupus erythematosus (SLE). To this end, levels of these autoantibodies, PON1 activity and total antioxidant capacity were quantified in serum samples from 198 SLE patients, 100 healthy controls (HC) and 42 non-autoimmune individuals with traditional cardiovascular risk factors. PON1 rs662 polymorphism was analysed in a subgroup of patients and controls...
October 10, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29031854/angptl-4-induces-diabetic-retinal-inflammation-by-activating-profilin-1
#13
Qianyi Lu, Peirong Lu, Wei Chen, Li Lu, Zhi Zheng
Diabetic retinopathy (DR), the most common cause of irreversible blindness in working-age adults, results in central vision loss that is caused by microvascular damage to the inner lining of the back of the eye, the retina. The aim of this work was to assess the temporal relationships between angiopoietin-like protein-4 (ANGPTL-4), a novel adipocytokine factor, and diabetic retinal inflammation and microvascular dysfunction. The downstream pathway(s) and upstream mediator(s) of ANGPTL-4 were then determined under high glucose (HG) conditions...
October 13, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/29029510/adenovirus-mediated-delivery-of-sema3a-alleviates-rheumatoid-arthritis-in-a-serum-transfer-induced-mouse-model
#14
Yue Teng, Zhanhai Yin, Jing Li, Kun Li, Xu Li, Yan Zhang
Rheumatoid arthritis is a chronic autoimmune disease characterized by infiltration of inflammatory cells into the synovium and destruction of cartilage and bone. Macrophages, fibroblast-like synoviocytes (FLS), and osteoclasts are critical cells driving the pathogenesis of RA. Semaphorin 3A (Sema3A) is recently identified as an essential player in the bone homeostasis, however its role in RA progression especially in the macrophage polarization are poorly understood. In the present study, we found that Sems3A levels were significantly decreased in RA serum and synovial fluid compared to OA controls...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29024547/equine-endometrial-explants-undergo-significant-degenerative-changes-in-culture
#15
Rose Schwinghamer, Alessandro Massolo, Cameron Knight, Claudia Klein
The current study evaluated equine endometrial explants following 12, 24, and 48 hours in culture. Measurement of an indicator of cell death in explant supernatant, light microscopy, and gene expression of biomarkers of endometrial function and cellular stress, were used to compare the effect of six different media on explant viability and morphology. Viability of explants was assessed indirectly through measuring LDH activity in the culture supernatant. Regardless of culture medium composition, a significant increase in LDH activity was observed within 12 hours of culture, indicating occurrence of cell damage...
October 12, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29023362/glycocalyx-shedding-is-enhanced-by-age-and-correlates-with-increased-fluid-requirement-in-patients-with-major-burns
#16
Akinori Osuka, Hirofumi Kusuki, Kazuhiro Yoneda, Hiroshi Matsuura, Hisatake Matsumoto, Hiroshi Ogura, Masashi Ueyama
BACKGROUND: Massive fluid shift following severe burn injury leads to edema and intravascular fluid loss that may result in burn-induced compartment syndrome (BICS) when corrected by aggressive fluid resuscitation. Factors causing this fluid shift remain unclear. Because glycocalyx regulates endothelial permeability, we hypothesized that glycocalyx shedding would increase fluid requirements in burn patients. This prospective cohort study aimed to identify relationships between shedding of the glycocalyx and fluid requirements following burn injury...
October 11, 2017: Shock
https://www.readbyqxmd.com/read/29022504/endothelial-and-circulating-progenitor-cells-in-hematological-diseases-and-allogeneic-hematopoietic-stem-cell-transplantation
#17
Annalisa Ruggeri, Annalisa Paviglianiti, Fernanda Volt, Chantal Kenzey, Hanadi Rafii, Vanderson Rocha, Eliane Gluckman
Circulating endothelial cells (CECs), originated form endothelial progenitors (EPCs) are mature cells which are not associated with vessel walls, and that are detached from the endothelium. Normally, they are present in insignificant amounts in the peripheral blood of healthy individuals. On the other hand, elevated CECs and EPCs levels have been reported in the peripheral blood of patients with different types of cancers and some other diseases. Consequently, CECs and EPCs represent a potential biomarker in several clinical conditions involving endothelial turnover and remodeling, such as hematological diseases...
October 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28982834/how-biomarkers-reflect-the-prognosis-and-treatment-of-necrotising-soft-tissue-infections-and-the-effects-of-hyperbaric-oxygen-therapy-the-protocol-of-the-prospective-cohort-protreat-study-conducted-at-a-tertiary-hospital-in-copenhagen-denmark
#18
Peter Polzik, Pär I Johansson, Ole Hyldegaard
INTRODUCTION: Not enough is known regarding the prognosis and treatment of necrotising soft tissue infections (NSTIs). Mortality has been shown to be 25%-35%, with survivors coping with amputations and prolonged rehabilitation. This study will evaluate soluble urokinase-type plasminogen activator receptor (suPAR) as a possible prognostic marker of NSTI severity and mortality, as well as whether hyperbaric oxygen therapy (HBOT) can modulate markers of endothelial damage during NSTI. We hypothesise that in patients with NSTI, suPAR can provide prognostic risk assessment on hospital admission and that HBOT can reduce the endothelial damage that these patients are exposed to...
October 5, 2017: BMJ Open
https://www.readbyqxmd.com/read/28974313/disparate-effects-of-catecholamines-under-stress-conditions-on-endothelial-glycocalyx-injury-an-in%C3%A2-vitro-model
#19
Jonathan V Martin, David M Liberati, Lawrence N Diebel
BACKGROUND: Geriatric trauma patients have high circulating norepinephrine (NE) levels but attenuated release of epinephrine (Epi) in response to increasing severity of injury. We hypothesized that NE and Epi have different effects on the endothelial and glycocalyx components of the vascular barrier following shock. METHODS: Human umbilical vein endothelial cells (HUVEC) were treated with varying concentrations of NE or Epi and exposed to simulated shock conditions (HR)...
September 22, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28968987/chemotherapy-administration-to-breast-cancer-patients-affects-extracellular-vesicles-thrombogenicity-and-function
#20
Anat Aharon, Anni Sabbah, Shahar Ben-Shaul, Hila Berkovich, David Loven, Benjamin Brenner, Gil Bar-Sela
Breast cancer (BC) is the most prevalent type of malignancy in women. Extracellular vesicles (EVs) are subcellular membrane blebs that include exosomes and microparticles. STUDY AIMS: To elucidate the effects of chemotherapy administration on BC patients' EVs characteristics and their effects on endothelial cells (EC) functions. METHODS: EVs were isolated from the blood samples of 54 BC patients treated by chemotherapy (25 neo-adjuvant, 29 adjuvant) and from 20 healthy women (control group)...
September 8, 2017: Oncotarget
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