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Cardiovascular pathology

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https://www.readbyqxmd.com/read/28651238/inducible-nitric-oxide-synthase-good-or-bad
#1
REVIEW
Maggie Lind, Alan Hayes, Martin Caprnda, Daniel Petrovic, Luis Rodrigo, Peter Kruzliak, Anthony Zulli
Nitric oxide synthases (NOS) are a family of isoforms responsible for the synthesis of the potent dilator nitric oxide (NO). Expression of inducible NOS (iNOS) occurs in conditions of inflammation, and produces large amounts of NO. In pathological conditions iNOS is regarded as a harmful enzyme and is proposed to be a major contributor to diseases of the cardiovascular system such as atherosclerosis. In this review, we address the notion that iNOS is a detrimental enzyme in disease and discuss its potentially beneficial roles...
June 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28649865/dental-stem-cells-recent-progresses-in-tissue-engineering-and-regenerative-medicine
#2
João Botelho, Maria Alzira Cavacas, Vanessa Machado, José João Mendes
Since the disclosure of adult mesenchymal stem cells (MSCs) there have been an intense investigation on the characteristics of these cells and their potentialities. Dental Stem Cells (DSCs) are MSC-like populations with self-renewal capacity and multidifferentiation potential. Currently, there are five main DSCs, dental pulp stem cells (DPSCs), stem cells from exfoliated deciduous teeth (SHED), stem cells from apical papilla (SCAP), periodontal ligament stem cells (PDLSCs), and Dental Follicle Precursor Cells (DFPCs)...
June 24, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28649367/nitric-oxide-signalling-and-neuronal-nitric-oxide-synthase-in-the-heart-under-stress
#3
REVIEW
Yin Hua Zhang
Nitric oxide (NO) is an imperative regulator of the cardiovascular system and is a critical mechanism in preventing the pathogenesis and progression of the diseased heart. The scenario of bioavailable NO in the myocardium is complex: 1) NO is derived from both endogenous NO synthases (endothelial, neuronal, and/or inducible NOSs [eNOS, nNOS, and/or iNOS]) and exogenous sources (entero-salivary NO pathway) and the amount of NO from exogenous sources varies significantly; 2) NOSs are located at discrete compartments of cardiac myocytes and are regulated by distinctive mechanisms under stress; 3) NO regulates diverse target proteins through different modes of post-transcriptional modification (soluble guanylate cyclase [sGC]/cyclic guanosine monophosphate [cGMP]/protein kinase G [PKG]-dependent phosphorylation, S-nitrosylation, and transnitrosylation); 4) the downstream effectors of NO are multidimensional and vary from ion channels in the plasma membrane to signalling proteins and enzymes in the mitochondria, cytosol, nucleus, and myofilament; 5) NOS produces several radicals in addition to NO (e...
2017: F1000Research
https://www.readbyqxmd.com/read/28649251/cocoa-and-dark-chocolate-polyphenols-from-biology-to-clinical-applications
#4
REVIEW
Thea Magrone, Matteo Antonio Russo, Emilio Jirillo
It is well known that cocoa and dark chocolate possess polyphenols as major constituents whose dietary consumption has been associated to beneficial effects. In fact, cocoa and dark chocolate polyphenols exert antioxidant and anti-inflammatory activities switching on some important signaling pathways such as toll-like receptor 4/nuclear factor κB/signal transducer and activator of transcription. In particular, cocoa polyphenols induce release of nitric oxide (NO) through activation of endothelial NO synthase which, in turn, accounts for vasodilation and cardioprotective effects...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28648830/purinergic-p2y-receptors-molecular-diversity-and-implications-for-treatment-of-cardiovascular-diseases
#5
REVIEW
Akiyuki Nishimura, Caroline Sunggip, Sayaka Oda, Takuro Numaga-Tomita, Makoto Tsuda, Motohiro Nishida
Purinergic signaling, mediated mainly by G protein-coupled P2Y receptors (P2YRs), is now attracting attention as a new therapeutic target for preventing or treating cardiovascular diseases. Observations using mice with genetically modified P2YRs and/or treated with a pharmacological P2YR inhibitor have helped us understand the physiological and pathological significance of P2YRs in the cardiovascular system. P2YR-mediated biological functions are predominantly activated by mononucleotides released from non-adrenergic, non-cholinergic nerve endings or non-secretory tissues in response to physical stress or cell injury, though recent studies have suggested the occurrence of ligand-independent P2YR function through receptor-receptor interactions (oligomerization) in several biological processes...
June 22, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28646716/histopathologic-differences-partially-distinguish-syndromic-aortic-diseases
#6
Kevin M Waters, Lisa M Rooper, Andrew Guajardo, Marc K Halushka
A variety of syndromic diseases such as Marfan syndrome, Loeys-Dietz syndrome, and bicuspid aortic valve with aneurysm along with risk factors of smoking and hypertension result in ascending aortic aneurysms and dissections. Historically, a complicated variety of terms have been used to describe a range of histopathologies that are present in resected specimens. As a result, no consistent patterns of histopathology have been reported. We used the recent Society for Cardiovascular Pathology/Association for European Cardiovascular Pathology consensus statement on nomenclature and diagnostic criteria for noninflammatory aortic disease to blindly evaluate 148 surgically resected specimens...
June 15, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28646674/a-multimodal-spatiotemporal-cardiac-motion-atlas-from-mr-and-ultrasound-data
#7
Esther Puyol-Antón, Matthew Sinclair, Bernhard Gerber, Mihaela Silvia Amzulescu, Hélène Langet, Mathieu De Craene, Paul Aljabar, Paolo Piro, Andrew P King
Cardiac motion atlases provide a space of reference in which the motions of a cohort of subjects can be directly compared. Motion atlases can be used to learn descriptors that are linked to different pathologies and which can subsequently be used for diagnosis. To date, all such atlases have been formed and applied using data from the same modality. In this work we propose a framework to build a multimodal cardiac motion atlas from 3D magnetic resonance (MR) and 3D ultrasound (US) data. Such an atlas will benefit from the complementary motion features derived from the two modalities, and furthermore, it could be applied in clinics to detect cardiovascular disease using US data alone...
June 13, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28645686/relationship-between-cardiovascular-disease-and-dental-pathology-systematic-review
#8
REVIEW
Beatriz González Navarro, Xavier Pintó Sala, Enric Jané Salas
BACKGROUND AND OBJECTIVE: The relationship between atherothrombotic cardiovascular disease (ATCD) and localised infections in teeth, including caries and chronic apical periodontitis (CAP) has not been studied much and is not well defined. METHOD: A systematic search was performed using the scientific databases PubMed and Medline from 1989 to 2016. RESULTS: A significant relationship was observed with ATCD in 10 out of 10 studies addressing the degree of oral hygiene, in 14 of 17 that included loss of teeth, in 6 of 12 that analysed caries and in 11 of 15 that included CAP...
June 20, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28642117/soluble-epoxide-hydrolase-as-a-therapeutic-target-for-pain-inflammatory-and-neurodegenerative-diseases
#9
REVIEW
Karen M Wagner, Cindy B McReynolds, William K Schmidt, Bruce D Hammock
Eicosanoids are biologically active lipid signaling molecules derived from polyunsaturated fatty acids. Many of the actions of eicosanoid metabolites formed by cyclooxygenase and lipoxygenase enzymes have been characterized, however, the epoxy-fatty acids (EpFAs) formed by cytochrome P450 enzymes are newly described by comparison. The EpFA metabolites modulate a diverse set of physiologic functions that include inflammation and nociception among others. Regulation of EpFAs occurs primarily via release, biosynthesis and enzymatic transformation by the soluble epoxide hydrolase (sEH)...
June 19, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28641818/the-role-of-kr%C3%A3-ppel-like-factor-14-in-the-pathogenesis-of-atherosclerosis
#10
REVIEW
Wei Xie, Liang Li, Xi-Long Zheng, Wei-Dong Yin, Chao-Ke Tang
The Krüppel-like factor (KLF) family, as the SP/XKLF transcription factors, plays important roles in regulating the expression of genes required for the proper execution of important biological and pathological processes. Recent studies have demonstrated that KLF14, a member of the KLF family, participates in the initiation and progression of atherosclerotic cardiovascular disease (CVD). From the molecular function aspect, this review focuses on the impact of KLF14-mediated regulation in major atherosclerosis-related diseases and pathological processes, such as insulin resistance, type 2 diabetes, dyslipidemia, inflammation, obesity, metabolic syndrome, cell proliferation and differentiation...
June 7, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28641570/1h-post-load-blood-glucose-in-the-identification-of-proatherogenic-cardiometabolic-profile-in-obesity
#11
Djordje S Popovic, Dragana Tomic-Naglic, Milena Mitrovic, Zeljko Zivanovic, Bojan Vukovic, Edita Stokic
BACKGROUND AND AIM: Current data show that 1h oral glucose tolerance test (OGTT) blood glucose (1h-BG) might identify persons at increased risk of developing type 2 diabetes and cardiovascular diseases more precisely than fasting blood glucose (FBG) and 2h OGTT blood glucose (2h-BG). The aim of study was to determine whether is justified to use 1h-BG, instead of traditional blood glucose measurements, in cardiometabolic profiling of obese individuals. METHOD: Cross-sectional study enrolled 60 obese individuals without previous history of diabetes and other cardiometabolic disorders...
June 13, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28640307/healthy-properties-of-green-and-white-teas-an-update
#12
REVIEW
S Pastoriza, M Mesías, C Cabrera, J A Rufián-Henares
Green tea has been consumed for centuries in Japan, China and Morocco. White tea, which is considered a variety of green tea, is mostly consumed in China and is very appreciated for its flavor. Currently the consumption of both types of tea has been extended to the western countries even as a functional ingredient. A group of polyphenols called catechins stands out among their bioactive components, the most abundant being the (-) epigallocatechin gallate, with high antioxidant power. Teas also contain other phenolic compounds such as gallic, caffeic, chlorogenic or cinnamic acids, quercetin and proanthocyanidols, caffeine, theophylline, l-theanine and minerals such as fluorine, manganese or chromium...
June 22, 2017: Food & Function
https://www.readbyqxmd.com/read/28639365/vascular-calcification-vitamin-k-and-warfarin-therapy-possible-or-plausible-connection
#13
Aino Siltari, Heikki Vapaatalo
Atherosclerosis is a pathological process underpinning many cardiovascular diseases; it is the main cause of global mortality. Atherosclerosis is characterized by an invasion of inflammatory cells, accumulation of lipids and the formation of fatty streaks (plaques) which subsequently allow accumulation of calcium and other minerals leading to a disturbance in the vascular endothelium and its regulatory role in arterial function. Vascular calcification is a different process, stringently regulated mainly by local factors, in which osteoblast-like cells accumulate in the muscular layer of arteries ultimately taking on the physiological appearance of bone...
June 21, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28639246/atp-gated-p2x3-receptors-are-specialised-sensors-of-the-extracellular-environment
#14
Elsa Fabbretti
P2X3 receptors are ion channels expressed by autonomic and sensory nerves and specialised in transducing extracellular ATP signals. Structural data, together with functional and biochemical studies, suggest that conformational changes of P2X3 receptors upon agonist binding influence downstream intracellular molecular mechanisms relevant for neuronal responses. Activity of P2X3 receptors is implicated in pain, itch, asthma, cardiovascular dysfunction and other pathologies. The study of these receptors has therefore a large potential in the field of drug development and interdisciplinary efforts could clarify molecular mechanisms controlling P2X3 receptor function in different physiological or pathological contexts...
June 22, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28637902/tgf-%C3%AE-1-suppresses-il-33-induced-mast-cell-function
#15
Victor S Ndaw, Daniel Abebayehu, Andrew J Spence, Patrick A Paez, E Motunrayo Kolawole, Marcela T Taruselli, Heather L Caslin, Alena P Chumanevich, Anuya Paranjape, Bianca Baker, Brian O Barnstein, Tamara T Haque, Kasalina N Kiwanuka, Carole A Oskeritzian, John J Ryan
TGF-β1 is involved in many pathological conditions, including autoimmune disorders, cancer, and cardiovascular and allergic diseases. We have previously found that TGF-β1 can suppress IgE-mediated mast cell activation of human and mouse mast cells. IL-33 is a member of the IL-1 family capable of inducing mast cell responses and enhancing IgE-mediated activation. In this study, we investigated the effects of TGF-β on IL-33-mediated mast cell activation. Bone marrow-derived mast cells cultured in TGF-β1, β2, or β3 showed reduced IL-33-mediated production of TNF, IL-6, IL-13, and MCP-1 in a concentration-dependent manner...
June 21, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28635904/-myocardial-fibrosis-current-aspects-of-the-problem
#16
V N Karetnikova, V V Kashtalap, S N Kosareva, O L Barbarash
Fibrosis is one of the main components in the progression of most cardiovascular diseases, including coronary heart disease, by causing structural changes in the myocardium and vascular wall. The quantitative and qualitative characteristics of fibrosis of the myocardium are responsible for decreasing its elastic properties, developing diastolic dysfunction, impairing myocardial contractility, developing systolic dysfunction and cardiac arrhythmias, and worsening coronary blood flow in patients with heart failure of different etiologies...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28634267/30-years-of-the-mineralocorticoid-receptor-the-role-of-the-mineralocorticoid-receptor-in-the-vasculature
#17
REVIEW
Jennifer J DuPont, Iris Z Jaffe
Since the mineralocorticoid receptor (MR) was cloned 30 years ago, it has become clear that MR is expressed in extra-renal tissues, including the cardiovascular system, where it is expressed in all cells of the vasculature. Understanding the role of MR in the vasculature has been of particular interest as clinical trials show that MR antagonism improves cardiovascular outcomes out of proportion to changes in blood pressure. The last 30 years of research have demonstrated that MR is a functional hormone-activated transcription factor in vascular smooth muscle cells and endothelial cells...
July 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28634008/aging-associated-modifications-of-collagen-affect-its-degradation-by-matrix-metalloproteinases
#18
Preety Panwar, Georgina S Butler, Andrew Jamroz, Pouya Azizi, Christopher M Overall, Dieter Brömme
The natural aging process and various pathologies correlate with alterations in the composition and the structural and mechanical integrity of the connective tissue. Collagens represent the most abundant matrix proteins and provide for the overall stiffness and resilience of tissues. The structural changes of collagens and their susceptibility to degradation are associated with skin wrinkling, bone and cartilage deterioration, as well as cardiovascular and respiratory malfunctions. Here, matrix metalloproteinases (MMPs) are major contributors to tissue remodeling and collagen degradation...
June 17, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28633141/interaction-of-soluble-cxc-ligand-16-and-cardiac-injury-markers-in-hemodialysis-patients
#19
Wenjin Liu, Lulu Wang, Yongyue Wei, Xiurong Li, Chaoqing Gao, Jianmei Zhou, Liang Wang, Zhuxing Sun, Hong Chu, Youwei Bai, Junwei Yang
BACKGROUND: Recent data suggest that there is a pathogenic role for CXC ligand 16 (CXCL16) in cardiovascular diseases. Little is known about circulating CXCL16 in patients with kidney dysfunction. We explored the relationships of plasma CXCL16 with cardiac injury markers in a group of dialysis patients. METHODS: Plasma CXCL16 and C-reactive protein (CRP) were measured in 366 patients who were on maintenance hemodialysis. Cardiac injury was evaluated via measurements of the circulating B-type natriuretic peptide (BNP), N-terminal prohormone of brain natriuretic peptide (NT proBNP), Troponin I (TnI), and Troponin T (TnT)...
June 21, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28632483/cardiovascular-disease-risk-profile-of-ncaa-division-iii-intercollegiate-football-athletes-a-pilot-study
#20
Cynthia J Wright, Elizabeth L Abbey, Barbara A Brandon, Edward J Reisman, Christina M Kirkpatrick
OBJECTIVES: Concerns about the long-term cardiovascular health implications of American football participation have been investigated at the professional and Division I levels, but limited research is available at the less resourced Division III level. Therefore, the objective was to assess the cardiovascular disease risk profile of NCAA Division III intercollegiate football athletes. METHODS: Eighty-nine varsity football athletes (age=19.6±1.7 years, height=1...
June 20, 2017: Physician and Sportsmedicine
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