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inflammation and heart

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https://www.readbyqxmd.com/read/29028771/mechanisms-of-thrombocytopenia-during-septic-shock-a-multiplex-cluster-analysis-of-endogenous-sepsis-mediators
#1
Alexandre Bedet, Keyvan Razazi, Florence Boissier, Mathieu Surenaud, Sophie Hue, Stéphane Giraudier, Christian Brun-Buisson, Armand Mekontso Dessap
BACKGROUND: Thrombocytopenia is a common feature of sepsis and may involve various mechanisms often related to the inflammatory response. This study aimed at evaluating factors associated with thrombocytopenia during human septic shock. In particular, we used a multiplex analysis to assess the role of endogenous sepsis mediators. METHODS: Prospective, observational study. Thrombocytopenia was defined as an absolute platelet count <100 G/L or a 50% relative decrease in platelet count during the first week of septic shock...
October 12, 2017: Shock
https://www.readbyqxmd.com/read/29026702/apical-extrusion-of-intracanal-bacteria-with-single-file-and-multifile-rotary-instrumentation-systems
#2
Eshaghali Saberi, Shahram Shahraki Zahedani, Sediqe Ebrahimipour
AIMS AND OBJECTIVES: Instrumentation techniques may cause extrusion of microorganisms and their products into the periapical region resulting inflammation and treatment failure. The aim of this ex vivo study was comparing the apical bacterial extrusion in canals prepared with single file versus multiple file rotary systems. MATERIALS AND METHODS: Ninety-two human single-rooted mandibular first premolars were used. Endodontic access cavities were prepared, and root canals were contaminated with an Enterococcus faecalis (E...
September 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29026413/evaluation-of-pentraxin-3-level-and-its-related-factors-in-patients-undergoing-primary-percutaneous-coronary-intervention
#3
Saeed Alipour-Parsa, Habib Haybar, Mohammad Hasan Namazi, Morteza Safi, Isa Khaheshi, Mehdi Memaryan, Amir Mohammad Eghbalnejad-Mofrad
BACKGROUND: Inflammation has an important role in the development and progression of atherosclerosis, and acute phase proteins such as pentraxin-3 (PTX3) can be deployed in determining the prognosis of coronary artery disease (CAD). So the purpose of this paper was to evaluate the PTX3 level and its related factors in patients undergoing primary percutaneous coronary intervention (PCI). METHODS: In this cross-sectional study, the PTX3 levels were determined for 100 patients with ST-elevation myocardial infarction referred to the Modarres Hospital, Tehran, Iran...
March 2017: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/29025545/constrictive-pericarditis
#4
REVIEW
Terrence D Welch, Jae K Oh
Constrictive pericarditis is a potentially treatable cause of diastolic heart failure that arises because a diseased, inelastic pericardium restricts ventricular diastolic expansion. Affected patients present with heart failure with predominant right-sided symptoms and signs. The key to diagnosis is identification of the unique hemodynamic properties associated with constriction: dissociation of intrathoracic and intracardiac pressures and enhanced ventricular interaction. Comprehensive echocardiography with Doppler imaging is useful, but invasive hemodynamic assessment and cross-sectional imaging may be required for confirmation...
November 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/29025406/impact-of-empagliflozin-on-subclinical-left-ventricular-dysfunctions-and-on-the-mechanisms-involved-in-myocardial-disease-progression-in-type-2-diabetes-rationale-and-design-of-the-empa-heart-trial
#5
Andrea Natali, Lorenzo Nesti, Iacopo Fabiani, Enrico Calogero, Vitantonio Di Bello
BACKGROUND: Asymptomatic left ventricular (LV) dysfunction is highly prevalent in type 2 diabetes patients. Unlike the other hypoglycemic drugs, SGLT2 inhibitors have shown potential benefits for reducing cardiovascular death and risk factors, aside from lowering plasma glucose levels. With this study we aim at determining whether the treatment with empagliflozin is associated with an improvement in LV functions in diabetic patients with asymptomatic LV dysfunction against Sitagliptin, which is presumably neutral on myocardial function...
October 12, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29025396/a-description-of-the-gross-pathology-of-drowning-and-other-causes-of-mortality-in-seabirds
#6
Victor R Simpson, David N Fisher
BACKGROUND: Mortality of seabirds due to anthropogenic causes, especially entrapment in fishing gear, is a matter of increasing international concern. This study aimed at characterising the gross pathology of seabirds that drowned in fishing nets and comparing it with that in other common causes of mortality. RESULTS: Post-mortem examinations were performed on 103 common guillemots, 32 razorbills, 37 shags and 5 great northern divers found stranded in Cornwall during 1981-2016...
October 12, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29024702/polycystic-ovarian-syndrome-pcos-long-term-metabolic-consequences
#7
Panagiotis Anagnostis, Basil C Tarlatzis, Robert P Kauffman
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women during their reproductive ages, associated with a plethora of cardiometabolic consequences, with obesity, insulin resistance and hyperandrogenemia playing a major role in the degree of such manifestations. These consequences include increased risk of glucose intolerance and diabetes mellitus (both type 2 and gestational), atherogenic dyslipidemia, systemic inflammation, non-alcoholic fatty liver disease, hypertension and coagulation disorders...
October 9, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29022506/autologous-cell-therapy-for-vascular-regeneration-the-role-of-proangiogenic-cells
#8
Vanessa Bianconi, Francesca Fallarino, Massimo Raffaele Mannarino, Francesco Bagaglia, Meisam Naeimi Kararoudi, Caterina Oriana Aragona, Rita Romani, Matteo Pirro
Autologous cell therapy represents a novel treatment option for vascular regeneration in different disease conditions. Both experimental and clinical studies indicate a therapeutic potential for different proangiogenic cells (PCs), including endothelial progenitor cells (EPCs) in the treatment of peripheral artery disease. A significant improvement of ischemic symptoms has been reported in different trials evaluating PCs for the treatment of critical limb ischemia. However, contrasting results from different meta-analyses question the efficacy of PC-based approaches on long-term outcomes, including amputation and survival...
October 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29022267/cardiac-fibrosis-the-beneficial-effects-of-exercise-in-cardiac-fibrosis
#9
Jan Kyselovič, John J Leddy
Numerous scientific findings have concluded that individuals who are active tend to develop less cardiovascular disease than those who enjoy more sedentary lifestyles. Animal models have further demonstrated that the beneficial effects of training on the heart effects of training are related to the signaling pathways of myocardial hypertrophy and fibrosis. As such, fibroblasts represent a very important population of cells within the myocardium as they play a crucial role in both cardiac development and response to injury...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29022264/experimental-evidences-supporting-the-benefits-of-exercise-training-in-heart-failure
#10
Marcelo H A Ichige, Marcelo G Pereira, Patrícia C Brum, Lisete C Michelini
Heart Failure (HF), a common end point for many cardiovascular diseases, is a syndrome with a very poor prognosis. Although clinical trials in HF have achieved important outcomes in reducing mortality, little is known about functional mechanisms conditioning health improvement in HF patients. In parallel with clinical studies, basic science has been providing important discoveries to understand the mechanisms underlying the pathophysiology of HF, as well as to identify potential targets for the treatment of this syndrome...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29022261/the-non-cardiomyocyte-cells-of-the-heart-their-possible-roles-in-exercise-induced-cardiac-regeneration-and-remodeling
#11
Ivan Varga, Jan Kyselovič, Paulina Galfiova, Lubos Danisovic
The non-cardiomyocyte cellular microenvironment of the heart includes diverse types of cells of mesenchymal origin. During development, the majority of these cells derive from the epicardium, while a subset derives from the endothelium/endocardium and neural crest derived mesenchyme. This subset includes cardiac fibroblasts and telocytes, the latter of which are a controversial type of "connecting cell" that support resident cardiac progenitors in the postnatal heart. Smooth muscle cells, pericytes, and endothelial cells are also present, in addition to adipocytes, which accumulate as epicardial adipose connective tissue...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29022008/inflammatory-activation-of-human-cardiac-fibroblasts-leads-to-altered-calcium-signaling-decreased-connexin-43-expression-and-increased-glutamate-secretion
#12
Eva Skiöldebrand, Annika Lundqvist, Ulrika Björklund, Mikael Sandstedt, Anders Lindahl, Elisabeth Hansson, Lillemor Mattsson Hultén
Cardiac fibroblasts, which are abundant in heart tissue, are involved not only in extracellular matrix homeostasis and repair, but also in cardiac remodeling after a myocardial infarction that, in turn, can lead to loss of cardiac function and heart failure. Ca(2+) signaling is functionally important in many cell types, but the roles of fibroblast signaling and inflammation in the pathogenesis of heart disease are unclear. Here, we tested the hypothesis that inflammatory activation affects cardiac fibroblasts, both in terms of Ca(2+) signaling and their capacity for intercellular communication through the gap junction channel protein connexin 43 (Cx43)...
October 2017: Heliyon
https://www.readbyqxmd.com/read/29021856/refractory-ventricular-tachycardia-caused-by-inflow-cannula-mechanical-injury-in-a-patient-with-left-ventricular-assist-device-catheter-ablation-and-pathological-findings
#13
Stefano Pedretti, Manlio Cipriani, Edgardo Bonacina, Sara Vargiu, Vered Gil Ad, Maria Frigerio, Maurizio Lunati
In patients with left ventricular assist device (LVAD), a minority of post-operative ventricular tachycardias (VTs) is caused by contact between the inflow cannula and the endocardium. Currently, electrophysiologic characteristics and pathologic features of this condition are lacking. We report on a case of a successfully ablated mechanical VT. After VT recurrence, heart transplantation took place. Pathologic observations were consistent with direct tissue injury and inflammation, eventually contributing to persisting arrhythmias...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29021231/deletion-of-bmp6-worsens-the-phenotype-of-hjv-deficient-mice-and-attenuates-hepcidin-levels-reached-after-lps-challenge
#14
Chloé Latour, Céline Besson-Fournier, Ophélie Gourbeyre, Delphine Meynard, Marie-Paule Roth, Hélène Coppin
Lack of either BMP6 or the BMP co-receptor hemojuvelin (HJV) in mice leads to a similar phenotype with hepcidin insufficiency, hepatic iron loading, and extrahepatic iron accumulation in males. This is consistent with the current views that HJV is a co-receptor for BMP6 in hepatocytes. To determine whether BMP6 and HJV may also signal to hepcidin independently of each other, we intercrossed Hjv(-/-) and Bmp6(-/-) mice and compared the phenotype of animals of the F2 progeny. Loss of Bmp6 further repressed Smad signaling and hepcidin expression in the liver of Hjv(-/-) mice of both genders, and led to iron accumulation in the pancreas and the heart of females...
October 11, 2017: Blood
https://www.readbyqxmd.com/read/29020983/cxcr2-inhibition-a-novel-approach-to-treating-coronary-heart-disease-cicada-study-protocol-for-a-randomised-controlled-trial
#15
Jubin P Joseph, Eliana Reyes, Josephine Guzman, Jim O'Doherty, Hannah McConkey, Satpal Arri, Rahul Kakkar, Nicholas Beckley, Abdel Douiri, Sally F Barrington, Simon R Redwood, Albert Ferro
BACKGROUND: There is emerging evidence of the central role of neutrophils in both atherosclerotic plaque formation and rupture. Patients with lower neutrophil counts following acute coronary syndromes tend to have a greater coronary flow reserve, which is a strong predictor of long-term cardiovascular health. But so far, no data are available regarding the impact of neutrophil inhibition on cardiovascular clinical or surrogate endpoints. Therefore, the aim of this study is to investigate the effects of AZD5069, a cysteine-X-cysteine chemokine receptor 2 (CXCR2) inhibitor, on coronary flow reserve and coronary structure and function in patients with coronary artery disease...
October 11, 2017: Trials
https://www.readbyqxmd.com/read/29020403/cardiac-and-systemic-rejuvenation-after-cardiosphere-derived-cell-therapy-in-senescent-rats
#16
Lilian Grigorian-Shamagian, Weixin Liu, Soraya Fereydooni, Ryan C Middleton, Jackelyn Valle, Jae Hyung Cho, Eduardo Marbán
Aim: The aim is to assess the effects of CDCs on heart structure, function, gene expression, and systemic parameters in aged rats. Diastolic dysfunction is characteristic of aged hearts. Cardiosphere-derived cell (CDC) therapy has exhibited several favourable effects on heart structure and function in humans and in preclinical models; however, the effects of CDCs on aging have not been evaluated. Methods and Results: We compared intra-cardiac injections of neonatal rat CDCs to vehicle (phosphate-buffered saline, PBS) in 21...
August 14, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29018830/antivenom-efficacy-in-neutralizing-histopathological-complications-following-latrodectus-dahli-envenomation
#17
Elham Valikhanfard-Zanjani, Abbas Zare-Mirakabadi, Ehsan Zayerzadeh
BACKGROUND: Nowadays use of specific antivenin for latrodectism is considered as the most effective treatment in the world. This study was undertaken to investigate the efficacy of specific antivenom against histopathological complications caused by Latrodectus dahli venom on liver, heart and kidneys tissues within 72h. METHODS: Two groups were selected, each one contained 6 male New Zealand rabbits weighing 2±0.5kg. The animals were anesthetized with 0.5ml ketamine and 0...
March 2017: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/29017166/the-role-of-the-mineralocorticoid-receptor-in-inflammation-focus-on-kidney-and-vasculature
#18
Zachary Belden, Jeffrey A Deiuliis, Mirela Dobre, Sanjay Rajagopalan
BACKGROUND: The remarkable success of clinical trials in mineralocorticoid receptor (MR) inhibition in heart failure has driven research on the physiological and pathological role(s) of nonepithelial MR expression. MR is widely expressed in the cardiovascular system and is a major determinant of endothelial function, smooth muscle tone, vascular remodeling, fibrosis, and blood pressure. An important new dimension is the appreciation of the role MR plays in immune cells and target organ damage in the heart, kidney and vasculature, and in the development of insulin resistance...
October 10, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/29016675/effect-of-small-sided-team-sport-training-and-protein-intake-on-muscle-mass-physical-function-and-markers-of-health-in-older-untrained-adults-a-randomized-trial
#19
Jacob Vorup, Mogens Theisen Pedersen, Lena Kirchner Brahe, Pia Sandfeld Melcher, Joachim Meno Alstrøm, Jens Bangsbo
The effect of small-sided team sport training and protein intake on muscle mass, physical function, and adaptations important for health in untrained older adults was examined. Forty-eight untrained older (72±6 (±standard deviation, SD) years men and women were divided into either a team sport group ingesting a drink high in protein (18 g) immediately and 3 h after each training session (TS-HP, n = 13), a team sport group ingesting an isocaloric drink with low protein content (3 g; TS-LP, n = 18), or a control group continuing their normal activities (CON, n = 17)...
2017: PloS One
https://www.readbyqxmd.com/read/28994540/-protective-effect-of-shuyu-yiban-decoction-on-atherosclerosis-in-rats-induced-by-chronic-unpredictable-mild-stress
#20
Xiao-Jun Zheng, Zhi-Qiang Hu, Shu-Wei Luan, Ran Li, Yun Li, Jian-Liang Li, Yu-Jie Li, Xiao-Xin Zhu
Shuyu Yiban decoction(SYYB) has significant effect in treating the patients with coronary heart disease combined with chronic psychological stress. In this study, in order to observe the effects of SYYB on early formation of atherosclerosis(As) and inflammation response induced by chronic psychological stress, high-fat diet+intraperitoneal injections of Vitamin D3 were given to establish As early lesion models, and based on these models, chronic unpredictable mild stress(CUMS) was used to observe whether the chronic psychological stress could increase coronary atherosclerotic lesions investigate the intervention effect of SYYB(6...
March 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
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