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Endothelial dysfunction

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https://www.readbyqxmd.com/read/28527400/effects-of-combretastatin-a-4-phosphate-on-canine-normal-and-tumor-tissue-derived-endothelial-cells
#1
Yusuke Izumi, Keisuke Aoshima, Yuki Hoshino, Satoshi Takagi
Combretastatin A-4 phosphate (CA4P) selectively blocks tumor blood flow. However, the detailed mechanisms through which CA4P specifically affects tumor blood vessels are not well understood. Recent reports revealed that tumor tissue-derived endothelial cells (TECs) have various specific features in comparison with normal tissue-derived endothelial cells (NECs). Thus, abnormalities in TECs may be involved in the selective vascular blockade mechanism of CA4P. In this study, we evaluated the effects of CA4P on canine NECs and TECs using confocal microscopy...
May 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28527058/headache-and-arterial-hypertension
#2
Cinzia Finocchi, Davide Sassos
Elevated blood pressure (BP) and headache have long been linked in the medical literature. Headache associated with arterial hypertension is a main concern in emergency department. It is believed that headache may be a symptom attributed to arterial hypertension only if the BP values are very high or rise quickly. Many studies support the hypothesis that migraine patients have an increased risk of developing hypertension, while hypertensive subjects do not seem to have an increased risk of migraine or other types of headache...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28526381/medium-term-effect-of-sublingual-l-glutathione-supplementation-on-flow-mediated-dilation-in-subjects-with-cardiovascular-risk-factors
#3
Jonica Campolo, Stefano Bernardi, Lorena Cozzi, Silvia Rocchiccioli, Cinzia Dellanoce, Antonella Cecchettini, Annamaria Tonini, Marina Parolini, Benedetta De Chiara, Gianpaolo Micheloni, Gualtiero Pelosi, Claudio Passino, Cristina Giannattasio, Oberdan Parodi
OBJECTIVE: Supplementation of glutathione (GSH) may be a positive strategy to improve the endogenous antioxidant defense required to counteract many acute and chronic diseases. However, the efficacy of GSH treatment seems to be closely related to type of administration, degree of absorption, and increase of its concentrations. The aim of this study was to test a new sublingual formulation of L-GSH, which enters directly the systemic circulation, to assess its efficacy on circulating biochemical markers of hepatic metabolism, lipid profile, and oxidative stress and on peripheral vascular function compared with placebo in patients with cardiovascular risk factors (CVRF)...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28525515/lidocaine-prevents-oxidative-stress-induced-endothelial-dysfunction-of-the-systemic-artery-in-rats-with-intermittent-periodontal-inflammation
#4
Takumi Saito, Yasuhiro Yamamoto, Guo-Gang Feng, Yoshiaki Kazaoka, Yoshihiro Fujiwara, Hiroyuki Kinoshita
BACKGROUND: Periodontal inflammation causes endothelial dysfunction of the systemic artery. However, it is unknown whether the use of local anesthetics during painful dental procedures alleviates periodontal inflammation and systemic endothelial function. This study was designed to examine whether the gingival or systemic injection of lidocaine prevents oxidative stress-induced endothelial dysfunction of the systemic artery in rats with intermittent periodontal inflammation caused by lipopolysaccharides (LPS)...
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28525354/the-relationship-between-insulin-resistance-and-endothelial-dysfunction-in-obese-adolescents
#5
Preneet Cheema Brar, Payal Patel, Stuart Katz
BACKGROUND: Insulin resistance and endothelial dysfunction share a reciprocal relationship that links the metabolic and cardiovascular sequelae of obesity. We characterized the brachial artery reactivity testing (BART) and carotid artery-intima media thickness (CIMT) in adolescents categorized as obese insulin resistant (OIR) and obese not insulin resistant (ONIR). Lipoprotein particle (p) analysis and inflammatory cytokines in OIR and ONIR groups were also analyzed. METHODS: Obese adolescents (n=40; mean body mass index [BMI] 35...
May 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28524456/endothelial-microparticles-released-by-activated-protein-c-protect-beta-cells-through-epcr-par1-and-annexin-a1-fpr2-pathways-in-islets
#6
Guillaume Kreutter, Mohamad Kassem, Ali El Habhab, Philippe Baltzinger, Malak Abbas, Julie Boisrame-Helms, Lamia Amoura, Jean Peluso, Blandine Yver, Zobairi Fatiha, Geneviève Ubeaud-Sequier, Laurence Kessler, Florence Toti
Islet transplantation is associated with early ischaemia/reperfusion, localized coagulation and redox-sensitive endothelial dysfunction. In animal models, islet cytoprotection by activated protein C (aPC) restores islet vascularization and protects graft function, suggesting that aPC triggers various lineages. aPC also prompts the release of endothelial MP that bear EPCR, its specific receptor. Microparticles (MP) are plasma membrane procoagulant vesicles, surrogate markers of stress and cellular effectors...
May 19, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28523459/plasma-vascular-endothelial-growth-factor-b-levels-are-increased-in-patients-with-newly-diagnosed-type-2-diabetes-mellitus-and-associated-with-the-first-phase-of-glucose-stimulated-insulin-secretion-function-of-%C3%AE-cell
#7
J Wu, H Wei, H Qu, Z Feng, J Long, Q Ge, H Deng
PURPOSE: To detect plasma vascular endothelial growth factor B (VEGF-B) in individuals with different glucose tolerance and investigate the relationship between plasma VEGF-B levels and the first phase of glucose-stimulated insulin secretion. METHODS: A cross-sectional study was conducted involving 45 patients with newly diagnosed type 2 diabetes mellitus (T2DM), 37 patients with impaired glucose regulation (IGR), and 39 Normal glucose tolerance (NGT) subjects, all of whom underwent intravenous glucose tolerance test...
May 18, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28523173/thrombotic-responses-to-coronary-stents-bioresorbable-scaffolds-and-the-kounis-hypersensitivity-associated-acute-thrombotic-syndrome
#8
REVIEW
Nicholas G Kounis, Ioanna Koniari, Anastasios Roumeliotis, Grigorios Tsigas, George Soufras, Nicholas Grapsas, Periklis Davlouros, George Hahalis
Percutaneous transluminal coronary angioplasty with coronary stent implantation is a life-saving medical procedure that has become, nowadays, the most frequent performed therapeutic procedure in medicine. Plain balloon angioplasty, bare metal stents, first and second generation drug-eluting stents, bioresorbable and bioabsorbable scaffolds have offered diachronically a great advance against coronary artery disease and have enriched our medical armamentarium. Stented areas constitute vulnerable sites for endothelial damage, endothelial dysfunction, flow turbulence, hemorheologic changes, platelet dysfunction, coagulation changes and fibrinolytic disturbances...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522147/cardiovascular-risk-in-advanced-na%C3%A3-ve-hiv-infected-patients-starting-antiretroviral-therapy-comparison-of-three-different-regimens-prevaleat-ii-cohort
#9
Paolo Maggi, Chiara Bellacosa, Armando Leone, Anna Volpe, Elena Delfina Ricci, Nicoletta Ladisa, Stefania Cicalini, Elisabetta Grilli, Rosaria Viglietti, Antonio Chirianni, Lara Ines Bellazzi, Renato Maserati, Canio Martinelli, Paola Corsi, Benedetto Maurizio Celesia, Federica Sozio, Gioacchino Angarano
BACKGROUND AND AIMS: PREVALEAT (PREmature VAscular LEsions and Antiretroviral Therapy) II is a multicenter, longitudinal cohort study aimed at the evaluation of cardiovascular risk among advanced HIV-positive, treatment-naïve patients starting their first therapy. We hypothesized that these patients, present a higher cardiovascular (CV) risk. METHODS: The study included all consecutive naïve patients with less than 200 CD4 cells/ml starting antiretroviral therapy...
May 5, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28521866/neovascular-deterioration-impaired-nadph-oxidase-and-inflammatory-cytokine-expression-in-adipose-derived-multipotent-cells-from-subjects-with-metabolic-syndrome
#10
Wilfredo Oliva-Olivera, Said Lhamyani, Leticia Coín-Aragüez, Daniel Castellano-Castillo, Juan Alcaide-Torres, Elena María Yubero-Serrano, Rajaa El Bekay, Francisco José Tinahones
OBJECTIVE: Expansion of adipose tissue depends on the growth of its vascular network and it has been shown that adipose tissue dysfunction in obese subjects with the metabolic syndrome is associated with decreased angiogenesis. However, some subjects with a high body mass index do not develop metabolic abnormalities associated with obesity. In this study we examined the neovascular properties, expression levels of proteins involved in cellular redox balance and inflammatory cytokines in adipose-derived multipotent mesenchymal cells (ASCs) of subjects with different metabolic profiles...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28521683/impact-of-red-wine-consumption-on-cardiovascular-health
#11
Luca Liberale, Aldo Bonaventura, Fabrizio Montecucco, Franco Dallegri, Federico Carbone
The devastating effects of heavy alcohol drinking have been long time recognized. In the last decades, potential benefits of modest red wine drinking were suggested. In European countries in which red wide intake is not negligible (such as France), the association between cholesterol and cardiovascular (CV) risk was less evident, suggesting the action of some protective molecules in red wine or other foods and drinks. Epidemiological and mechanistic evidence of a J-shaped relationship between red wine intake and CV risk further supported the "French paradox"...
May 17, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28518140/a-mirna-101-3p-bim-axis-as-a-determinant-of-serum-deprivation-induced-endothelial-cell-apoptosis
#12
Ji-Hee Kim, Dong-Keon Lee, Joohwan Kim, Seunghwan Choi, Wonjin Park, Kwon-Soo Ha, Tae-Hoon Kim, Jongseon Choe, Moo-Ho Won, Young-Guen Kwon, Young-Myeong Kim
Serum deprivation or withdrawal induces apoptosis in endothelial cells, resulting in endothelial cell dysfunction that is associated with cardiovascular disease. However, there is still limited information on the role of miRNA in serum deprivation-induced apoptosis. Here we found that serum deprivation increased caspase-dependent apoptosis through miRNA-101-3p downregulation, without altering expression of its host gene RNA 3'-terminal phosphate cyclase-like 1, which was highly correlated with suppressed expression levels of Dicer and Argonaute 2 (Ago2), indicating that miR-101-3p is post-transcriptionally elevated in serum-deprived conditions...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28516363/posterior-reversible-encephalopathy-syndrome-presenting-in-the-anterior-circulation-with-malignant-intracranial-hypertension-requiring-surgical-decompression-a-case-report-and-literature-review
#13
S Hernández-Durán, A Barrantes-Freer, V Rohde, C von der Brelie
Posterior reversible encephalopathy syndrome (PRES) is thought to result from endothelial dysfunction and breakdown of the blood-brain barrier with subsequent vasogenic edema. Abrupt hypertension has been identified as one of its risk factors. We present a rare case of PRES in the anterior circulation with sudden onset of left hemiparesis and rapid neurological deterioration on the basis of hypertensive crisis. Due to refractory intracranial hypertension, the patient required emergent right decompressive craniectomy...
May 17, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28516097/asymmetric-dimethylarginine-in-patients-with-ascending-aortic-aneurysms
#14
Natalia D Gavriliuk, Tatiana A Druzhkova, Olga B Irtyuga, Alexandr A Zhloba, Tatiana F Subbotina, Vladimir E Uspenskiy, Nina P Alexeyeva, Olga M Moiseeva
BACKGROUND: Ascending thoracic aortic aneurysm (aTAA) is a heterogeneous group of disorders that involve impaired endothelial function. The nitric oxide (NO) synthase inhibitor asymmetric dimethylarginine (ADMA) serves as an endothelial dysfunction marker. Thus, we investigated ADMA levels in patients with aTAA. METHODS: Eighty-six patients with aTAA and 18 healthy individuals were enrolled. All patients underwent echocardiography. Plasma ADMA levels were measured using high-performance liquid chromatography...
December 2016: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28514939/antioxidant-properties-of-drugs-used-in-type-2-diabetes-management-could-they-contribute-to-confound-or-conceal-effects-of-antioxidant-therapy
#15
Siu Wai Choi, Cyrus K Ho
OBJECTIVES: This is a narrative review, investigating the antioxidant properties of drugs used in the management of diabetes, and discusses whether these antioxidant effects contribute to, confound, or conceal the effects of antioxidant therapy. METHODS: A systematic search for articles reporting trials, or observational studies on the antioxidant effect of drugs used in the treatment of diabetes in humans or animals was performed using Web of Science, PubMed, and Ovid...
May 17, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28514657/huntington-s-disease-ipsc-derived-brain-microvascular-endothelial-cells-reveal-wnt-mediated-angiogenic-and-blood-brain-barrier-deficits
#16
Ryan G Lim, Chris Quan, Andrea M Reyes-Ortiz, Sarah E Lutz, Amanda J Kedaigle, Theresa A Gipson, Jie Wu, Gad D Vatine, Jennifer Stocksdale, Malcolm S Casale, Clive N Svendsen, Ernest Fraenkel, David E Housman, Dritan Agalliu, Leslie M Thompson
Brain microvascular endothelial cells (BMECs) are an essential component of the blood-brain barrier (BBB) that shields the brain against toxins and immune cells. While BBB dysfunction exists in neurological disorders, including Huntington's disease (HD), it is not known if BMECs themselves are functionally compromised to promote BBB dysfunction. Further, the underlying mechanisms of BBB dysfunction remain elusive given limitations with mouse models and post-mortem tissue to identify primary deficits. We undertook a transcriptome and functional analysis of human induced pluripotent stem cell (iPSC)-derived BMECs (iBMEC) from HD patients or unaffected controls...
May 16, 2017: Cell Reports
https://www.readbyqxmd.com/read/28513999/microparticles-of-healthy-origins-improve-endothelial-progenitor-cell-dysfunction-via-microrna-transfer-in-an-atherosclerotic-hamster-model
#17
Nicoleta Alexandru, Eugen Andrei, Loredan Niculescu, Emanuel Dragan, Violeta Ristoiu, Adriana Georgescu
AIM: In this study we aimed: (1) to obtain and functionally characterize the cultures of late endothelial progenitor cells (EPCs) from the animal blood; (2) to investigate the potential beneficial effects of circulating microparticles (MPs) of healthy origins on EPC dysfunctionality in atherosclerosis as well as involved mechanisms. METHODS: Late EPCs were obtained and expanded in culture from peripheral blood isolated from two animal groups: hypertensive-hyperlipidemic (HH) and control (C) hamsters...
May 17, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28513223/activation-of-thromboxane-a2-receptors-mediates-endothelial-dysfunction-in-diabetic-mice
#18
Xiaona Xie, Wanchun Sun, Jun Wang, Xiaoou Li, Xiaofeng Liu, Ning Liu
BACKGROUND: Diabetes is one of high-risk factors for cardiovascular disease. Improvement of endothelial dysfunction in diabetes reduces vascular complications. However, the underlying mechanism needs to be uncovered. This study was conducted to elucidate whether and how thromboxane A2 receptor (TPr) activation contributes to endothelial dysfunction in diabetes. METHODS AND RESULTS: Exposure of human umbilical vein endothelial cells (HUVECs) to either TPr agonists, two structurally related thromboxane A2 (TxA2) mimetics, significantly reduced phosphorylations of endothelial nitric oxide synthase (eNOS) at Ser(1177) and Akt at Ser(473)...
May 17, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28512721/mid-term-risk-for-subclinical-atherosclerosis-and-chronic-myocarditis-in-children-with-kawasaki-disease-and-transient-coronary-abnormalities
#19
Mansingh Parihar, Surjit Singh, Pandiarajan Vignesh, Anju Gupta, Manojkumar Rohit
There is evidence for premature atherosclerosis and systemic arterial stiffening during follow-up of children with Kawasaki disease (KD) and coronary artery abnormalities (CAA). Moreover, patients with KD may also have subclinical myocardial involvement and inhomogeneous ventricular repolarization. The inhomogeneous ventricular repolarization manifests as increased QT dispersion on electrocardiography. There is a paucity of studies in endothelial dysfunction and QT dispersion in children with KD and transient CAA...
May 17, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28512525/h2s-donor-nahs-changes-the-production-of-endogenous-h2s-and-no-in-d-galactose-induced-accelerated-ageing
#20
Wei Wu, Cui-Lan Hou, Xue-Pan Mu, Chen Sun, Yi-Chun Zhu, Ming-Jie Wang, Qian-Zhou Lv
Aims. The study was designed to explore whether hydrogen sulphide (H2S) and nitric oxide (NO) generation changed in D-galactose- (D-gal-) induced ageing, the possible effects of exogenous H2S supplementation, and related mechanisms. Results. In D-gal-induced senescent mice, both H2S and NO levels in the heart, liver, and kidney tissues were decreased significantly. A similar trend was observed in D-gal-challenged human umbilical vein endothelial cells (HUVECs). Sustained H2S donor (NaHS) treatment for 2 months elevated H2S and NO levels in these mice, and during this period, the D-gal-induced senescent phenotype was reversed...
2017: Oxidative Medicine and Cellular Longevity
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