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Cardiovascular pathology

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https://www.readbyqxmd.com/read/29231290/cardiovascular-magnetic-resonance-imaging-and-clinical-performance-of-somatostatin-receptor-positron-emission-tomography-in-cardiac-sarcoidosis
#1
Carmen Pizarro, Folke Kluenker, Darius Dabir, Daniel Thomas, Florian C Gaertner, Markus Essler, Christian Grohé, Georg Nickenig, Dirk Skowasch
AIMS: Cardiac affection constitutes a major limiting condition in systemic sarcoidosis. The primary objective of this study was to investigate the persistence rate of cardiac sarcoid involvement by cardiovascular magnetic resonance (CMR) imaging in patients diagnosed with cardiac sarcoidosis (CS). Moreover, we examined the additional insights into myocardial damage's characteristics gained by somatostatin receptor scintigraphy. METHODS AND RESULTS: In a pilot study, we had previously identified cardiac involvement-diagnosed by CMR imaging-to be present in 29 of 188 patients (15...
December 12, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29228174/cardiovascular-risk-in-early-psychosis-relationship-with-inflammation-and-clinical-features-6-months-after-diagnosis
#2
Molero M F Barcones, K S MacDowell, B García Bueno, M Bioque, L Gutiérrez-Galve, A González Pinto, M J Parellada, J Bobes, M Bernardo, A Lobo, J C Leza
Background: We aimed to investigate the state of cardiovascular risk/protection factors in early psychosis patients. Methods: 119 subjects were recruited during the first year after their first episode of psychosis (FEP). 85 of these subjects were followed during the next 6 months. Cardiovascular risk/protection factors were measured in plasma and co-variated by sociodemographic/clinical characteristics. Multiple linear regression models detected the change of each biological marker from baseline to follow-up in relation to clinical scales, antipsychotic medication and pro/anti-inflammatory mediators...
December 8, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29226241/raman-spectroscopy-imaging-reveals-interplay-between-atherosclerosis-and-medial-calcification-in-the-human-aorta
#3
Amanda Y F You, Mads S Bergholt, Jean-Philippe St-Pierre, Worrapong Kit-Anan, Isaac J Pence, Adrian H Chester, Magdi H Yacoub, Sergio Bertazzo, Molly M Stevens
Medial calcification in the human aorta accumulates during aging and is known to be aggravated in several diseases. Atherosclerosis, another major cause of cardiovascular calcification, shares some common aggravators. However, the mechanisms of cardiovascular calcification remain poorly understood. To elucidate the relationship between medial aortic calcification and atherosclerosis, we characterized the cross-sectional distributions of the predominant minerals in aortic tissue, apatite and whitlockite, and the associated extracellular matrix...
December 2017: Science Advances
https://www.readbyqxmd.com/read/29226100/clinical-food-addiction-is-not-associated-with-development-of-metabolic-complications-in-liver-transplant-recipients
#4
Sammy Saab, Cameron Sikavi, Melissa Jimenez, Matthew Viramontes, Ruby Allen, Youssef Challita, Michelle Mai, Negin Esmailzadeh, Jonathan Grotts, Gina Choi, Francisco Durazo, Mohamed El-Kabany, Steven-Huy Han, Elisa Moreno
Background and Aims: Given the increased risk of post-transplant metabolic syndrome (PTMS; defined by hypertension, diabetes mellitus and hyperlipidemia), we aimed to identify the potential role of food addiction in the development of metabolic complications in the post-liver transplant population. Methods: Inclusion criteria included adult liver transplant recipients followed at our institution between June 2016 and November 2016. Participants were administered a demographic survey as well as the Yale Food Assessment Scale 2...
December 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/29225168/cortistatin-attenuates-angiotensin-ii-induced-abdominal-aortic-aneurysm-through-inactivation-of-the-erk1-2-signaling-pathways
#5
Hao Chai, ZhongHao Tao, Wen Chen, YueYue Xu, Fuhua Huang, CunHua Su, Xin Chen
Abdominal aortic aneurysm (AAA) is a fatal disease that is associated with chronic inflammation in the vessel wall. Cortistatin is implicated in inflammation, vascular smooth muscle cell migration and other cardiovascular pathologies. But, the hypothetical effect of cortistatin on AAA remains uncertain. We investigated the effect of cortistatin administration to angiotensin (Ang) II-induced AAA formation in apolipoprotein E deficient (Apoe-/-) mice. We showed that cortistatin administration significantly suppresses incidence and severity of AAA in Apoe-/- mice...
December 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29224092/sex-differences-in-leptin-control-of-cardiovascular-function-in-health-and-metabolic-diseases
#6
Eric J Belin de Chantemèle
Leptin, the adipocyte-derived hormone identified in 1994 for its major role in the control of satiety and body weight regulation, is an adipokine secreted in a sex-specific manner. Although it has clearly been established that females secrete three to four times more leptin than males and that this sexual dimorphism in leptin secretion is exacerbated with overweight and obesity, the origin and the physiological consequences of this sexual dimorphism remain ill-defined. The adipose tissue is the major site of leptin secretion; however, leptin receptors are ubiquitously expressed, conferring to leptin, and indirectly to the adipose tissue, a potential role in the control of numerous physiological functions...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29223352/atp-binding-cassette-transporter-2-abca2-as-a-therapeutic-target
#7
REVIEW
Warren Davis, Kenneth D Tew
The ATP binding cassette transporter ABCA2 is primarily an endolysosomal membrane protein that demonstrates pleiotropic functionalities, coalescing around the maintenance of homeostasis of sterols, sphingolipids and cholesterol. It is most highly expressed in brain tissue and ABCA2 knockout mice express neurological defects consistent with aberrant myelination. Increased expression of the transporter has been linked with resistance to cancer drugs, particularly those possessing a steroid backbone and gene expression (in concert with other genes involved in cholesterol metabolism) was found to be regulated by sterols...
December 6, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29222533/elastic-fibers-and-large-artery-mechanics
#8
M G Espinosa, Marius C Staiculescu, Jungsil Kim, Eric Marin, Jessica E Wagenseil
Development of a closed circulatory system requires that large arteries adapt to the mechanical demands of high, pulsatile pressure. Elastin and collagen uniquely address these design criteria in the low and high stress regimes, resulting in a nonlinear mechanical response. Elastin is the core component of elastic fibers, which provide the artery wall with energy storage and recoil. The integrity of the elastic fiber network is affected by component insufficiency or disorganization, leading to an array of vascular pathologies and compromised mechanical behavior...
December 9, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29221893/cardioprotective-effect-of-influenza-and-pneumococcal-vaccination-in-patients-with-cardiovascular-diseases
#9
REVIEW
Andrzej Ciszewski
Due to the wide interaction between the respiratory and the circulatory systems, influenza and pneumococcal vaccinations are recommended in the prevention and treatment of cardiovascular diseases. The review summarizes the results of recent studies and meta-analyses demonstrating that in this group of high-risk patients both vaccinations have potentially beneficial properties. However, in the era of Evidence Base Medicine, there is still a lack of randomized prospective clinical trials, especially those evaluating the effect of pneumococcal vaccination...
December 5, 2017: Vaccine
https://www.readbyqxmd.com/read/29221436/prevalence-and-related-risk-factors-of-chronic-kidney-disease-among-adults-in-luxembourg-evidence-from-the-observation-of-cardiovascular-risk-factors-oriscav-lux-study
#10
Ala'a Alkerwi, Nicolas Sauvageot, Illiasse El Bahi, Charles Delagardelle, Jean Beissel, Stephanie Noppe, Paul J Roderick, Jennifer S Mindell, Saverio Stranges
BACKGROUND: Evidence on stages of renal impairment and related risk factors in Luxembourg is lacking. This study aimed to assess the prevalence of chronic kidney disease (CKD) and identify potential correlates among the general population, using the recent definition suggested by the Kidney Disease Improving Global Outcomes guidelines. METHODS: Data analysed from 1361 participants aged 18-69 years, enrolled in the Observation of Cardiovascular Risk Factors in Luxembourg (ORISCAV-LUX) study, 2007-08...
December 8, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29220106/chemoprevention-by-resveratrol-and-pterostilbene-targeting-on-epigenetic-regulation
#11
REVIEW
Pei-Sheng Lee, Yi-Shiou Chiou, Chi-Tang Ho, Min-Hsiung Pan
Epigenetic mechanisms are essential in regulating normal cellular functions and play an important role during the disease developmental stages. However, aberrant epigenetic mechanisms may lead to pathological consequences such as cancer, neurological disorders, bone and skeletal diseases, cardiovascular dysfunction, and metabolic syndrome. The molecular mechanisms of epigenetic modification include DNA methylation, histone modification (acetylation, methylation and phosphorylation), and microRNAs (miRNAs). Unlike genetic modifications, epigenetic states of genes are reversible and can be altered by certain intrinsic and extrinsic factors...
December 8, 2017: BioFactors
https://www.readbyqxmd.com/read/29218069/down-syndrome-genetics-and-cardiogenetics
#12
Vasilica Plaiasu
During the last years, Down syndrome has been the focus of special attention. Down syndrome is a genetic disorder characterized by distinct physical features and some degree of cognitive disability. Patients with Down syndrome also present many other congenital anomalies. The mapping for phenotypes to specific regions of chromosome 21 permits to identify which genes (or small regions) contribute to the phenotypic features of Down syndrome and thus, to understand its pathogenesis. Mainly there are three cytogenetic forms of Down syndrome: free trisomy 21, mosaic trisomy 21 and robertsonian translocation trisomy 21...
September 2017: Mædica
https://www.readbyqxmd.com/read/29218066/arterial-stiffness-and-hypertension-which-comes-first
#13
Monica Ecobici, Claudiu Stoicescu
Arterial hypertension is one of the traditional risk factors involved in the development of cardiovascular events, while arterial stiffness is an independent predictor of cardiovascular disease in patients with hypertension. It seems that the risk factors involved in the pathology of uncontrolled hypertension are similar to those that contribute to the development of arterial stiffness. After evidence showed that arterial stiffness is an independent prognostic factor for the occurrence of cardiovascular events in patients with arterial hypertension, the importance of assessing arterial stiffness was recognized in a document drafted by the European Society of Hypertension in 2007...
September 2017: Mædica
https://www.readbyqxmd.com/read/29213121/the-genetic-spectrum-of-familial-hypercholesterolemia-fh-in-the-iranian-population
#14
R H Fairoozy, M Futema, R Vakili, M R Abbaszadegan, S Hosseini, M Aminzadeh, H Zaeri, M Mobini, S E Humphries, A Sahebkar
Familial hypercholesterolemia (FH) is an autosomal dominant disorder associated with premature cardiovascular disease (CVD). Mutations in the LDLR, APOB, and PCSK9 genes are known to cause FH. In this study, we analysed the genetic spectrum of the disease in subjects from the Iranian population with a clinical diagnosis of FH. Samples were collected from 16 children and family members from five different cities of Iran. Probands were screened for mutations in the LDLR, APOB, and PCSK9 genes using next generation sequencing, with results confirmed by Sanger sequencing...
December 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29212850/endothelial-transcriptomics-reveals-activation-of-fibrosis-related-pathways-in-hypertension
#15
Jonathan William Nelson, Mohammed Zubaerul Ferdaus, James A McCormick, Jessica Minnier, Sanjiv Kaul, David H Ellison, Anthony Paul Barnes
Hypertension poses a significant challenge to vasculature homeostasis and stands as the most common cardiovascular disease in the world. Its effects are especially profound on endothelial cells that form the inner lining of the vasculature and are directly exposed to the effects of excess pressure. Here, we characterize the in vivo transcriptomic response of cardiac endothelial cells to hypertension by rapidly isolating these cells from the spontaneous hypertension mouse model BPH/2J and its normotensive BPN/3J control strain and performing and RNA sequencing on both...
December 6, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/29212791/perinatal-inflammation-induces-sex-related-differences-in-cardiovascular-morbidities-in-mice
#16
Markus Velten, Kathryn Marie Heyob, Loren E Wold, Lynette K Rogers
Sex-related differences in cardiovascular health and disease have been identified with males having a higher incidence of cardiovascular events but females more likely to develop arrhythmias. Adverse fetal environments are now accepted as a cause for the development of cardiovascular diseases in adulthood but sex-related differences in response to adverse fetal environments have not been extensively explored. The combination of both in utero and postnatal exposure to inflammation is highly clinically relevant for the infant that is born preterm or has clinical complications at birth or early postnatal life...
December 6, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29212760/large-scale-molecular-dynamics-simulation-of-coupled-dynamics-of-flow-and-glycocalyx-towards-understanding-atomic-events-on-an-endothelial-cell-surface
#17
Xi Zhuo Jiang, Haipeng Gong, Kai Hong Luo, Yiannis Ventikos
The glycocalyx has a prominent role in orchestrating multiple biological processes occurring at the plasma membrane. In this paper, an all-atom flow/glycocalyx system is constructed with the bulk flow velocity in the physiologically relevant ranges for the first time. The system is simulated by molecular dynamics using 5.8 million atoms. Flow dynamics and statistics in the presence of the glycocalyx are presented and discussed. Complex dynamic behaviours of the glycocalyx, particularly the sugar chains, are observed in response to blood flow...
December 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29212477/nurse-health-and-lifestyle-modification-versus-standard-care-in-40-to-70-year-old-regional-adults-study-protocol-of-the-management-to-optimise-diabetes-and-metabolic-syndrome-risk-reduction-via-nurse-led-intervention-modern-randomized-controlled-trial
#18
Melinda J Carrington, Paul Zimmet
BACKGROUND: Metabolic syndrome (MetS), the clustering of multiple leading risk factors, predisposes individuals to increased risk for developing type 2 diabetes and/or cardiovascular disease (CVD). Cardio-metabolic disease risk increases with greater remoteness where specialist services are scarce. Nurse-led interventions are effective for the management of chronic disease. The aim of this clinical trial is to determine whether a nurse-implemented health and lifestyle modification program is more beneficial than standard care to reduce cardio-metabolic abnormalities and future risk of CVD and diabetes in individuals with MetS...
December 6, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/29212155/small-molecule-mediated-induction-of-mir-9-suppressed-vascular-smooth-muscle-cell-proliferation-and-neointima-formation-after-balloon-injury
#19
Onju Ham, Se-Yeon Lee, Byeong-Wook Song, Chang Youn Lee, Jiyun Lee, Hyang-Hee Seo, Sang Woo Kim, Soyeon Lim, Il-Kwon Kim, Seahyoung Lee, Ki-Chul Hwang
Pathologic proliferation and migration of vascular smooth muscle cells (VSMCs) exacerbate cardiovascular disease. MicroRNAs (miRNAs), as endogenous inhibitors of protein synthesis, are expected to modulate pathologic proliferation of VSMCs. Here we report that both platelet-derived growth factor receptor (PDGFR) targeting miR-9 and a small molecule that increases miR-9 can inhibit the serum-induced proliferation of VSMCs. First, based on miRNA-target prediction databases and empirical data, we have selected miR-9 as a potent anti-proliferative miRNA in VSMCs...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29210983/the-potential-pathogenic-contributions-of-endothelial-barrier-and-arterial-contractile-dysfunction-to-shock-due-to-b-anthracis-lethal-and-edema-toxins
#20
REVIEW
Dante A Suffredini, Xizhong Cui, Wanying Xu, Yan Li, Peter Q Eichacker
Shock with B. anthracis infection is particularly resistant to conventional cardiovascular support and its mortality rate appears higher than with more common bacterial pathogens. As opposed to many bacteria that lack exotoxins directly depressing hemodynamic function, lethal and edema toxin (LT and ET respectively) both cause shock and likely contribute to the high lethality rate with B. anthracis. Selective inhibition of the toxins is protective in infection models, and administration of either toxin alone in animals produces hypotension with accompanying organ injury and lethality...
December 6, 2017: Toxins
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