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https://www.readbyqxmd.com/read/28432663/the-vascular-wall-a-plastic-hub-of-activity-in-cardiovascular-homeostasis-and-disease
#1
REVIEW
Cassandra P Awgulewitsch, Linh T Trinh, Antonis K Hatzopoulos
PURPOSE OF REVIEW: This review aims to summarize recent findings regarding the plasticity and fate switching among somatic and progenitor cells residing in the vascular wall of blood vessels in health and disease. RECENT FINDINGS: Cell lineage tracing methods have identified multiple origins of stem cells, macrophages, and matrix-producing cells that become mobilized after acute or chronic injury of cardiovascular tissues. These studies also revealed that in the disease environment, resident somatic cells become plastic, thereby changing their stereotypical identities to adopt proinflammatory and profibrotic phenotypes...
June 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28432552/subchronic-nandrolone-administration-reduces-cardiac-oxidative-markers-during-restraint-stress-by-modulating-protein-expression-patterns
#2
Barbara Pergolizzi, Vitina Carriero, Giuliana Abbadessa, Claudia Penna, Paola Berchialla, Silvia De Francia, Enrico Bracco, Silvia Racca
Nandrolone decanoate (ND), an anabolic-androgenic steroid prohibited in collegiate and professional sports, is associated with detrimental cardiovascular effects through redox-dependent mechanisms. We previously observed that high-dose short-term ND administration (15 mg/kg for 2 weeks) did not induce left heart ventricular hypertrophy and, paradoxically, improved postischemic response, whereas chronic ND treatment (5 mg/kg twice a week for 10 weeks) significantly reduced the cardioprotective effect of postconditioning, with an increase in infarct size and a decrease in cardiac performance...
April 21, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28432201/mg53-biological-function-and-potential-as-a-therapeutic-target
#3
Yan Zhang, Hong-Kun Wu, Fengxiang Lv, Rui-Ping Xiao
MG53 (also known as TRIM72) is a cardiac and skeletal muscle-specific TRIM-family protein that exhibits multiple biological functions. First, MG53 participates in plasma membrane repair of the heart, skeletal muscle and other tissues. Second, MG53 is essentially involved in the cardioprotection of cardiac ischemic, pre-conditioning and post-conditioning, by activating the PI3K-Akt-GSK3β and ERK1/2 survival signaling pathways. Moreover, systemic delivery of recombinant MG53 protein ameliorates the impact of a range of injury insults on heart, skeletal muscle, lung, kidney, skin and brain...
April 21, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28431457/precision-medicine-and-pharmacogenetics-what-does-oncology-have-that-addiction-medicine-does-not
#4
Henry R Kranzler, Rachel V Smith, Robert Schnoll, Afaf Moustafa, Emma Greenstreet-Akman
BACKGROUND AND AIMS: Precision, personalized or stratified medicine, which promises to deliver the right treatment to the right patient, is a topic of international interest in both the lay press and the scientific literature. A key aspect of precision medicine is the identification of biomarkers that predict the response to medications (i.e. pharmacogenetics). We examined why, despite the great strides that have been made in biomarker identification in many areas of medicine, only in oncology has there been substantial progress in their clinical implementation...
April 21, 2017: Addiction
https://www.readbyqxmd.com/read/28431070/emerging-molecular-therapies-targeting-myocardial-infarction-related-arrhythmias
#5
Helen E Driessen, Toon A B van Veen, Gerard J J Boink
Cardiac disease is the leading cause of death in the developed world. Ventricular arrhythmias associated with myocardial ischaemia and/or infarction are a major contributor to cardiovascular mortality, and require improved prevention and treatment. Drugs, devices, and radiofrequency catheter ablation have made important inroads, but have significant limitations ranging from incomplete success to undesired toxicities and major side effects. These limitations derive from the nature of the intervention. Drugs are frequently ineffective, target the entire heart, and often do not deal with the specific arrhythmia trigger or substrate...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28429955/matrix-metalloproteinase-8-and-tissue-inhibitor-of-matrix-metalloproteinase-1-predict-incident-cardiovascular-disease-events-and-all-cause-mortality-in-a-population-based-cohort
#6
Immi Kormi, Mikko T Nieminen, Aki S Havulinna, Tanja Zeller, Stefan Blankenberg, Taina Tervahartiala, Timo Sorsa, Veikko Salomaa, Pirkko J Pussinen
Background Extracellular matrix degrading proteases and their regulators play an important role in atherogenesis and subsequent plaque rupture leading to acute cardiovascular manifestations. Design and methods In this prospective cohort study, we investigated the prognostic value of circulating matrix metalloproteinase-8, tissue inhibitor of matrix metalloproteinase-1 concentrations, the ratio of matrix metalloproteinase-8/ tissue inhibitor of matrix metalloproteinase-1 and, for comparison, myeloperoxidase and C-reactive protein concentrations for incident cardiovascular disease endpoints...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28429889/omentin-treatment-of-epicardial-fat-improves-its-anti-inflammatory-activity-and-paracrine-benefit-on-smooth-muscle-cells
#7
Ángel Fernández-Trasancos, Rosa María Agra, Jose María García-Acuña, Ángel Luis Fernández, José Ramón González-Juanatey, Sonia Eiras
OBJECTIVE: Epicardial adipose tissue (EAT) in coronary artery disease is insulin resistant and has a proinflammatory profile. This study examined the regulation of EAT by exogenous omentin and its consequence on vascular cells. METHODS: Stromal vascular cells (SC) of EAT and subcutaneous adipose tissue (SAT) from patients who underwent heart surgery were cultured and exposed to adipogenic factors with or without omentin. Proinflammatory cytokine regulation by omentin was analyzed in SC and mature adipocytes...
April 21, 2017: Obesity
https://www.readbyqxmd.com/read/28429194/photobiomodulation-therapy-associated-with-treadmill-training-in-the-oxidative-stress-in-a-collagen-induced-arthritis-model
#8
Solange Almeida Dos Santos, Marcia Ataize Dos Santos Vieira, Maira Cécilia Brandão Simões, Andrey Jorge Serra, Ernesto Cesar Leal-Junior, Paulo de Tarso Camillo de Carvalho
Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by chronic and systemic inflammation, which leads to the destruction of the cartilage and bone and affects tissues in multiple joints. Oxidative stress has been implicated with regards to involvement in various disease conditions, such as diabetes mellitus and neurodegenerative, respiratory, cardiovascular, and RA diseases. In vivo experimental studies using photobiomodulation therapy (PBMT) have shown positive effects in reducing lipid peroxidation and in increasing antioxidant activity...
April 21, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28428482/triglyceride-rich-lipoprotein-lpl-vldl-receptor-and-lp-a-vldl-receptor-pathways-for-macrophage-foam-cell-formation
#9
Sadao Takahashi
Very low-density lipoprotein (VLDL) receptor is a member of the low-density lipoprotein (LDL) receptor family. It binds triglyceride rich lipoprotein (TGRL) but not LDL, because it recognizes apolipoprotein (apo)E only but not apoB. The VLDL receptor functions as a peripheral lipoprotein receptor in concert with lipoprotein lipase (LPL) in heart, muscle, adipose tissue and macrophages. In contrast to the LDL receptor, VLDL receptor binds apo E2/2 VLDL and apoE3/3 VLDL particles, and its expression is not down-regulated by intracellular lipoproteins...
April 19, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28428072/membrane-lipid-alterations-in-the-metabolic-syndrome-and-the-role-of-dietary-oils
#10
REVIEW
Javier S Perona
The metabolic syndrome is a cluster of pathological conditions, including hypertension, hyperglycemia, hypertriglyceridemia, obesity and low HDL levels that is of great concern worldwide, as individuals with metabolic syndrome have an increased risk of type-2 diabetes and cardiovascular disease. Insulin resistance, the key feature of the metabolic syndrome, might be at the same time cause and consequence of impaired lipid composition in plasma membranes of insulin-sensitive tissues like liver, muscle and adipose tissue...
April 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28428070/no-production-and-potassium-channels-activation-induced-by-crotalus-durissus-cascavella-underlie-mesenteric-artery-relaxation
#11
S S Santos, R L C Jesus, L O Simões, W P Vasconcelos, I A Medeiros, R C Veras, L L Casais-E-Silva, D F Silva
Animal toxins are natural resources for pharmacological studies. The venom of Crotalus durissus cascavella (C.d. cascavella) may be a source in the bio-prospecting of new anti-hypertensive agents. The aim of this study was to investigate vascular effects of the venom of C.d. cascavella in normotensive rats. Studies were performed using isolated mesenteric artery segments and aortic endothelial cells. The cumulative administration of the venom of C.d. cascavella (0.001-30 μg/mL) on phenylephrine (Phe; 10 μM) pre-contracted rings induced a concentration-dependent vasorelaxation in the presence of vascular endothelium (Emax = 47...
April 17, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28427050/expression-of-high-mobility-group-protein-b1-in-cardiac-tissue-of-elderly-patients-with-coronary-artery-disease-with-or-without-inflammatory-rheumatic-disease
#12
Mei Bruton, Ivana Hollan, Julie Xiao, Eva Lindroos, Knut Mikkelsen, Stein E Rynning, Kjell Saatvedt, Sven M Almdahl, Helena E Harris, Ingrid E Lundberg, Cecilia Wick
BACKGROUND: It is known from clinical practice and observational studies that elderly patients with a diagnosis of inflammatory rheumatic diseases (IRD) bear a significantly increased risk for cardiovascular diseases such as coronary artery disease (CAD) and heart failure. The molecular mechanism, however, is still not known. Recently, high mobility group protein B1 (HMGB1), a ubiquitous, highly conserved single polypeptide expressed in all mammal eukaryotic cells, has been identified to mediate myocardial dysfunction in vitro once released from the nuclei of cardiomyocytes...
April 21, 2017: Gerontology
https://www.readbyqxmd.com/read/28425846/alterations-to-adipose-tissue-morphology-during-inflammatory-arthritis-is-indicative-of-vasculopathology-in-dba-1-mice
#13
Katie Sime, Ernest H Choy, Anwen S Williams
The physiologic function of adipose tissue is altered by the host's inflammatory response; the implications for maintaining human health and regulating inflammation-associated disease progression are ill defined. However, this cannot be investigated in humans, therefore the use of animal models is required. With the aim to determine morphological and molecular alterations to perivascular and organ-associated adipose tissues during inflammatory arthritis, collagen-induced arthritis (CIA) was established in male DBA/1 mice...
February 21, 2017: Adipocyte
https://www.readbyqxmd.com/read/28424575/contribution-of-autonomic-reflexes-to-the-hyperadrenergic-state-in-heart-failure
#14
REVIEW
Edgar Toschi-Dias, Maria Urbana P B Rondon, Chiara Cogliati, Nazareno Paolocci, Eleonora Tobaldini, Nicola Montano
Heart failure (HF) is a complex syndrome representing the clinical endpoint of many cardiovascular diseases of different etiology. Given its prevalence, incidence and social impact, a better understanding of HF pathophysiology is paramount to implement more effective anti-HF therapies. Based on left ventricle (LV) performance, HF is currently classified as follows: (1) with reduced ejection fraction (HFrEF); (2) with mid-range EF (HFmrEF); and (3) with preserved EF (HFpEF). A central tenet of HFrEF pathophysiology is adrenergic hyperactivity, featuring increased sympathetic nerve discharge and a progressive loss of rhythmical sympathetic oscillations...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28424377/sex-differences-in-micro-and-macro-vascular-complications-of-diabetes-mellitus
#15
REVIEW
Christine Maric-Bilkan
Vascular complications are a leading cause of morbidity and mortality in both men and women with type 1 (T1DM) or type 2 (T2DM) diabetes mellitus, however the prevalence, progression and pathophysiology of both microvascular (nephropathy, neuropathy and retinopathy) and macrovascular [coronary heart disease (CHD), myocardial infarction, peripheral arterial disease (PAD) and stroke] disease are different in the two sexes. In general, men appear to be at a higher risk for diabetic microvascular complications, while the consequences of macrovascular complications may be greater in women...
May 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28424375/mitochondria-a-central-target-for-sex-differences-in-pathologies
#16
REVIEW
Renée Ventura-Clapier, Maryline Moulin, Jérôme Piquereau, Christophe Lemaire, Mathias Mericskay, Vladimir Veksler, Anne Garnier
It is increasingly acknowledged that a sex and gender specificity affects the occurrence, development, and consequence of a plethora of pathologies. Mitochondria are considered as the powerhouse of the cell because they produce the majority of energy-rich phosphate bonds in the form of adenosine tri-phosphate (ATP) but they also participate in many other functions like steroid hormone synthesis, reactive oxygen species (ROS) production, ionic regulation, and cell death. Adequate cellular energy supply and survival depend on mitochondrial life cycle, a process involving mitochondrial biogenesis, dynamics, and quality control via mitophagy...
May 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28423630/insufficient-hypothalamic-angiotensin-converting-enzyme-2-is-associated-with-hypertension-in-shr-rats
#17
Kun Wang, Yuanyuan Xu, Weiwei Yang, Yuanshu Zhang
Angiotensin-Converting Enzyme 2 (ACE2) is a key enzyme in the renin-angiotensin system (RAS), which is implicated in the pathogenesis of hypertension and other cardiovascular diseases. In this study we investigated the expression of ACE2 in the hypothalamus and pituitary tissues and its relationship to hypertension by comparing them in male WKY and SHR rats. We observed that the plasma levels of corticotrophin releasing hormone (CRH), adrenocorticotropic hormone (ACTH) and aldosterone (ALD) were all lower in SHR than WKY rats (P<0...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423008/perirenal-fat-thickness-measured-with-computed-tomography-is-a-reliable-estimate-of-perirenal-fat-mass
#18
Guillaume Favre, Caroline Grangeon-Chapon, Charles Raffaelli, Florence François-Chalmin, Antonio Iannelli, Vincent Esnault
Deposition of perirenal adipose tissue has been associated with adverse renal and cardiovascular events. We compared various methods to measure perirenal adipose tissue using computerized tomography (CT)-scan and performed correlations with anthropometric measures associated with renal and cardiovascular events. Voluntary overweight and obese subjects undergoing a CT-scan for diagnostic purposes were included in the study. Perirenal adipose tissue volume, adipose tissue area of the renal sinus and perirenal fat thickness were manually measured bilaterally...
2017: PloS One
https://www.readbyqxmd.com/read/28422910/incremental-balloon-deflation-following-complete-reboa-results-in-steep-inflection-of-flow-and-rapid-reperfusion-in-a-large-animal-model-of-hemorrhagic-shock
#19
Anders J Davidson, Rachel M Russo, Sarah-Ashley E Ferencz, Jeremy W Cannon, Todd E Rasmussen, Lucas P Neff, M Austin Johnson, Timothy K Williams
INTRODUCTION: To avoid potential cardiovascular collapse after Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA), current guidelines recommend methodically deflating the balloon over 5 minutes to gradually reperfuse distal tissue beds. However, anecdotal evidence suggests that this approach may still result in unpredictable aortic flow rates and hemodynamic instability. We sought to characterize aortic flow dynamics following REBOA as the balloon is deflated in accordance with current practice guidelines...
April 18, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28422753/steroid-metabolome-analysis-reveals-prevalent-glucocorticoid-excess-in-primary-aldosteronism
#20
Wiebke Arlt, Katharina Lang, Alice J Sitch, Anna S Dietz, Yara Rhayem, Irina Bancos, Annette Feuchtinger, Vasileios Chortis, Lorna C Gilligan, Philippe Ludwig, Anna Riester, Evelyn Asbach, Beverly A Hughes, Donna M O'Neil, Martin Bidlingmaier, Jeremy W Tomlinson, Zaki K Hassan-Smith, D Aled Rees, Christian Adolf, Stefanie Hahner, Marcus Quinkler, Tanja Dekkers, Jaap Deinum, Michael Biehl, Brian G Keevil, Cedric H L Shackleton, Jonathan J Deeks, Axel K Walch, Felix Beuschlein, Martin Reincke
BACKGROUND: Adrenal aldosterone excess is the most common cause of secondary hypertension and is associated with increased cardiovascular morbidity. However, adverse metabolic risk in primary aldosteronism extends beyond hypertension, with increased rates of insulin resistance, type 2 diabetes, and osteoporosis, which cannot be easily explained by aldosterone excess. METHODS: We performed mass spectrometry-based analysis of a 24-hour urine steroid metabolome in 174 newly diagnosed patients with primary aldosteronism (103 unilateral adenomas, 71 bilateral adrenal hyperplasias) in comparison to 162 healthy controls, 56 patients with endocrine inactive adrenal adenoma, 104 patients with mild subclinical, and 47 with clinically overt adrenal cortisol excess...
April 20, 2017: JCI Insight
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