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Reversing heart disease

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https://www.readbyqxmd.com/read/29161309/dronedarone-produces-early-regression-of-myocardial-remodelling-in-structural-heart-disease
#1
Begoña Quintana-Villamandos, Jose Juan Gomez de Diego, María Jesús Delgado-Martos, David Muñoz-Valverde, María Luisa Soto-Montenegro, Manuel Desco, Emilio Delgado-Baeza
BACKGROUND AND AIMS: Left ventricular hypertrophy (LVH) in hypertension is associated with a greater risk of sustained supraventricular/atrial arrhythmias. Dronedarone is an antiarrhythmic agent that was recently approved for the treatment of atrial fibrillation. However, its effect on early regression of LVH has not been reported. We tested the hypothesis that short-term administration of dronedarone induces early regression of LVH in spontaneously hypertensive rats (SHRs). METHODS: Ten-month-old male SHRs were randomly assigned to an intervention group (SHR-D), where animals received dronedarone treatment (100 mg/kg) for a period of 14 days, or to a control group (SHR) where rats were given vehicle...
2017: PloS One
https://www.readbyqxmd.com/read/29154888/activation-of-yap1-taz-signaling-in-ischemic-heart-disease-and-dilated-cardiomyopathy
#2
Ning Hou, Ying Wen, Xun Yuan, Haodong Xu, Xuejun Wang, Faqian Li, Bo Ye
Genetic manipulation of key components of the evolutionally conserved Hippo pathway has shown that the precise control of these signaling molecules is critical to cardiac development and response to stresses. However, how this pathway is involved in the progression of cardiac dysfunction in different heart diseases remains unclear. We investigated the expressional levels and subcellular localization of Yap1, Taz, and Tead1 and determined Hippo target gene expression in failing human hearts with ischemic heart disease (IHD) and idiopathic dilated cardiomyopathy (IDC) and mouse desmin-related cardiomyopathy (DES)...
November 15, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29153067/-detection-of-influenza-virus-infections-by-molecular-and-immunofluorescence-methods
#3
Deniz Yıldırım, Deniz Özdoğru Sağdıç, Buket Şeflek, Mehmet Çimentepe, İbrahim Bayram, Fügen Yarkın
Influenza virus infections are extremely important for human health due to the occurence of seasonal epidemics and pandemics worldwide. Influenza is associated with high morbidity and may result in serious complications such as life threatening viral or bacterial pneumonia. Especially, young children, older adults, patients with chronic diseases such as heart, lung, kidney, and diabetes and immunosuppressed people are at higher risk for complications and death from influenza virus infections. The aim of this study was to determine the incidence of influenza type A and B virus infections and influenza A virus subtypes in hospitalized patients with respiratory tract infections by real-time reverse transcriptase-polymerase chain reaction (RT-PCR, Sacace, Italy), conventional RT-PCR and direct immunofluorescence antibody (DFA, Argene SA, France) tests...
October 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29152896/trimetazidine-restores-the-positive-adaptation-to-exercise-training-by-mitigating-statin-induced-skeletal-muscle-injury
#4
Ming Song, Fang-Fang Chen, Yi-Hui Li, Lei Zhang, Feng Wang, Ran-Ran Qin, Zhi-Hao Wang, Ming Zhong, Meng-Xiong Tang, Wei Zhang, Lu Han
BACKGROUND: Exercise rehabilitation is demonstrated to improve the prognosis of patients with coronary heart disease (CHD). Statins, as the key medicine to lower cholesterol in CHD, result in skeletal muscle injury and impair exercise training adaptation. Energy metabolism dysfunction is identified as the potential mechanism underlying statin-induced skeletal muscle injury. In this study, we investigated the effects of the metabolic modulator trimetazidine on skeletal muscle energy metabolism and statin-associated exercise intolerance...
November 19, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29151278/tetrahydrobiopterin-bh4-targeting-endothelial-nitric-oxide-synthase-as-a-potential-therapy-for-pulmonary-hypertension
#5
Bahaa N Francis, Maram Salameh, Rola Khamisy-Farah, Raymond Farah
PURPOSE: Pulmonary Hypertension (PH) is complex disease which is associated with endothelial and cardiac dysfunction. Tetrahydrobiopterin (BH4 ) regulates endothelial nitric oxide synthase (eNOS) to produce nitric oxide rather than superoxide which maintains normal endothelial and cardiac function. This study explores the therapeutic potential of BH4 in experimental PH. METHODS: Monocrotaline-induced PH in rats and Hph-1 deficiency in mice were used for animal experiments...
November 19, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/29148140/haemodynamic-effects-of-an-acute-vasodilator-challenge-in-heart-failure-patients-with-reduced-ejection-fraction-and-different-forms-of-post-capillary-pulmonary-hypertension
#6
Stefano Ghio, Gabriele Crimi, Pier Luigi Temporelli, Egidio Traversi, Maria Teresa La Rovere, Antonia Cannito, Dario Vizza, Laura Scelsi, Claudia Raineri, Marco Guazzi, Luigi Oltrona Visconti
AIMS: The most recent European guidelines have proposed new definitions of pulmonary hypertension (PH) in left heart disease, to better approach the characteristics required to reflect the presence of pulmonary vascular disease. The purpose of this study was to assess whether different haemodynamic definitions of post-capillary PH imply a different reversibility of PH in response to acute vasodilator administration in heart failure patients with reduced ejection fraction and PH (HFrEF-PH)...
November 16, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29147125/comparison-of-the-prevalence-of-enteroviruses-in-blood-samples-of-patients-with-and-without-unstable-angina
#7
Aida Gholoobi, Zahra Meshkat, Akram Baghani, Maryam Sadat Alavi, Toktam Mohammadpoor, Mastoureh Momen-Heravi, Mohsen Mouhebati, Samaneh Sepahi, Sina Rostami, Mojtaba Meshkat, Arash Gholoobi
BACKGROUND: Although the role of enteroviruses has been proved in heart diseases, extensive information is not available on the association between enteroviruses and unstable angina. In the present study, the authors compared the prevalence of enteroviruses in patients with and without unstable angina. METHODS: Blood samples were taken from 51 patients with unstable angina and 55 patients without unstable angina or myocardial infarction that were admitted to Imam Reza and Ghaem hospitals (Mashhad, northeast of Iran)...
July 2017: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/29138670/simvastatin-ameliorates-diabetic-cardiomyopathy-by-attenuating-oxidative-stress-and-inflammation-in-rats
#8
Nawal M Al-Rasheed, Nouf M Al-Rasheed, Iman H Hasan, Maha A Al-Amin, Hanaa N Al-Ajmi, Raeesa A Mohamad, Ayman M Mahmoud
Simvastatin is a lipid-lowering agent used to treat hypercholesterolemia and to reduce the risk of heart disease. This study scrutinized the beneficial effects of simvastatin on experimental diabetic cardiomyopathy (DCM), pointing to the role of hyperglycemia-induced oxidative stress and inflammation. Diabetes was induced by intraperitoneal injection of streptozotocin and both control and diabetic rats received simvastatin for 90 days. Diabetic rats showed significant cardiac hypertrophy, body weight loss, hyperglycemia, and hyperlipidemia...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29137023/a-case-report-of-schatzker-type-vi-tibial-plateau-fracture-treated-with-double-reverse-traction-closed-reduction-combined-with-minimally-invasive-percutaneous-plate-osteosynthesis-technique-a-case-report
#9
Dian-Qing Li, De-Ye Song, Jiang-Dong Ni, Mu-Liang Ding, Jun Huang
RATIONALE: The knee joint is an important weight-bearing joint, tibial plateau fractures affect knee function and stability. High-energy intra-articular fractures involving the tibial plateau can cause management-related problems such as wound dehiscence; severe comminution leading to malalignment; and delayed complications such as varus collapse, implant failure, and arthritis of the knee joint. The treatment of severe or complex tibial plateau fractures can be quite difficult. Traditional methods of open reduction and plating require extensive exposures, which may further compromise soft tissue and devascularize bone fragments, leading to infection...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29130531/acute-hypoxic-preconditioning-prevents-palmitic-acid-induced-cardiomyocyte-apoptosis-via-switching-metabolic-glut4-glucose-pathway-back-to-cd36-fatty-acid-dependent
#10
Yeh-Peng Chen, Wei-Wen Kuo, Rathinasamy Baskaran, Cecilia-Hsuan Day, Ray-Jade Chen, Su-Ying Wen, Tsung-Jung Ho, Viswanadha Vijaya Padma, Chia-Hua Kuo, Chih-Yang Huang
Metabolic syndrome is a risk factor for the development of cardiovascular diseases. Myocardial cell damage leads to an imbalance of energy metabolism, and many studies have indicated that short-term hypoxia during myocardial cell injury has a protective effect. In our previous animal studies, we found that short-term hypoxia in the heart has a protective effect, but long-term hypoxia increases myocardial cell injury. Palmitic acid (PA)-treated H9c2 cardiomyoblasts and neonatal rat ventricle cardiomyocytes were used to simulate hyperlipidemia model, which suppress cluster of differentiation 36 (CD36) and activate glucose transporter type 4 (GLUT4)...
November 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29124703/vitamin-d-cardiovascular-disease-and-risk-factors
#11
Tea Skaaby, Betina H Thuesen, Allan Linneberg
Observational studies have suggested a possible protective role of vitamin D on the cardiovascular system. The available evidence does not support either cardiovascular benefits or harms of vitamin D supplementation. This chapter provides an overview and discussion of the current knowledge of vitamin D effects from a cardiovascular health perspective. It focuses on vitamin D in relation to cardiovascular disease, i.e. ischemic heart disease, and stroke; the traditional cardiovascular risk factors hypertension, abnormal blood lipids, obesity; and the emerging risk factors hyperparathyroidism, microalbuminuria, chronic obstructive pulmonary diseases, and non-alcoholic fatty liver disease...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29124548/development-of-an-experimental-and-digital-cardiovascular-arterial-model-for-transient-hemodynamic-and-postural-change-studies-a-preliminary-framework-analysis
#12
Rodward L Hewlin, John P Kizito
The ultimate goal of the present work is to aid in the development of tools to assist in the treatment of cardiovascular disease. Gaining an understanding of hemodynamic parameters for medical implants allow clinicians to have some patient-specific proposals for intervention planning. In the present work an experimental and digital computational fluid dynamics (CFD) arterial model consisting of a number of major arteries (aorta, carotid bifurcation, cranial, femoral, jejunal, and subclavian arteries) were fabricated to study: (1) the effects of local hemodynamics (flow parameters) on global hemodynamics (2) the effects of transition from bedrest to upright position (postural change) on hemodynamics, and (3) diffusion of dye (medical drug diffusion simulation) in the arterial system via experimental and numerical techniques...
November 9, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/29122432/widespread-recent-increases-in-county-level-heart-disease-mortality-across-age-groups
#13
Adam S Vaughan, Matthew D Ritchey, Judy Hannan, Michael R Kramer, Michele Casper
PURPOSE: Recent national trends show decelerating declines in heart disease mortality, especially among younger adults. National trends may mask variation by geography and age. We examined recent county-level trends in heart disease mortality by age group. METHODS: Using a Bayesian statistical model and National Vital Statistics Systems data, we estimated overall rates and percent change in heart disease mortality from 2010 through 2015 for four age groups (35-44, 45-54, 55-64, and 65-74 years) in 3098 US counties...
October 28, 2017: Annals of Epidemiology
https://www.readbyqxmd.com/read/29121410/medication-management-of-patients-undergoing-transcatheter-aortic-valve-replacement
#14
Bethany A Kalich, J Erin Ledford, Ian B Hollis
Aortic stenosis (AS) is the most common form of valvular heart disease. A detailed diagnostic workup is necessary to promptly stage and classify disease severity to determine the optimal management. Medical therapy and valvuloplasty are options that fail to delay or reverse disease progression. Surgical aortic valve replacement (SAVR) is curative but has significant limitations for some patient populations. A newer option, transcatheter aortic valve replacement (TAVR), has become more widely available to patients with intermediate- or high-operative risk...
November 9, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/29115535/jujuboside-a-attenuates-norepinephrine-induced-apoptosis-of-h9c2-cardiomyocytes-by-modulating-mapk-and-akt-signaling-pathways
#15
Chang-Rong Wan, Dan-Dan Han, Jian-Qin Xu, Peng Yin, Xiao-Long Xu, Chen Mei, Feng-Hua Liu, Zhao-Fei Xia
Cardiomyocyte apoptosis is closely associated with the pathogenesis of heart failure. Jujuboside A (JUA) is a type of saponin isolated from the seeds of Zizyphus jujuba. In traditional Chinese medicine, it is believed that JUA possesses multiple biological effects, including antianxiety, antioxidant and anti‑inflammatory activities. The present study aimed to evaluate the effects of JUA on norepinephrine (NE)‑induced apoptosis of H9c2 cells and to investigate its underlying mechanisms. Rat H9c2 cardiomyocytes were pretreated with JUA and were then exposed to NE as an in vitro model of myocardial apoptosis...
November 2, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29115401/inhibitors-targeting-the-sumoylation-pathway-a-patent-review-2012%C3%A2-2015-review
#16
Yanjun Zhou, Chunmei Ji, Mengda Cao, Miao Guo, Wen Huang, Weiwei Ni, Ling Meng, Haiwei Yang, Ji-Fu Wei
Small ubiquitin‑related modifier (SUMO) proteins bind to the lysine residue of target proteins to produce functionally mature proteins. The abnormal SUMOylation of certain target proteins is associated with diseases including cancer, heart disease, diabetes, arthritis, degenerative diseases and brain ischemia/stroke. Thus, there has been growing appreciation for the potential importance of the SUMO conjugation pathway as a target for treating these diseases. This review introduces the important steps in the reversible SUMOylation pathway...
November 1, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29110153/protection-by-mtor-inhibition-on-zymosan-induced-systemic-inflammatory-response-and-oxidative-nitrosative-stress-contribution-of-mtor-mek1-erk1-2-ikk%C3%AE-i%C3%AE%C2%BAb-%C3%AE-nf-%C3%AE%C2%BAb-signalling-pathway
#17
Seyhan Sahan-Firat, Meryem Temiz-Resitoglu, Demet Sinem Guden, Sefika Pinar Kucukkavruk, Bahar Tunctan, Ayse Nihal Sari, Zumrut Kocak, Kafait U Malik
Mammalian target of rapamycin (mTOR), a serine/threonine kinase regulate variety of cellular functions including cell growth, differentiation, cell survival, metabolism, and stress response, is now appreciated to be a central regulator of immune responses. Because mTOR inhibitors enhanced the anti-inflammatory activities of regulatory T cells and decreased the production of proinflammatory cytokines by macrophages, mTOR has been a pharmacological target for inflammatory diseases. In this study, we examined the role of mTOR in the production of proinflammatory and vasodilator mediators in zymosan-induced non-septic shock model in rats...
November 6, 2017: Inflammation
https://www.readbyqxmd.com/read/29109781/a-circular-rna-binds-to-and-activates-akt-phosphorylation-and-nuclear-localization-reducing-apoptosis-and-enhancing-cardiac-repair
#18
Yan Zeng, William W Du, Yingya Wu, Zhenguo Yang, Faryal Mehwish Awan, Xiangmin Li, Weining Yang, Chao Zhang, Qi Yang, Albert Yee, Yu Chen, Fenghua Yang, Huan Sun, Ren Huang, Albert J Yee, Ren-Ke Li, Zhongkai Wu, Peter H Backx, Burton B Yang
As central nodes in cardiomyocyte signaling, nuclear AKT appears to play a cardio-protective role in cardiovascular disease. Here we describe a circular RNA, circ-Amotl1 that is highly expressed in neonatal human cardiac tissue, and potentiates AKT-enhanced cardiomyocyte survival. We hypothesize that circ-Amotl1 binds to PDK1 and AKT1, leading to AKT1 phosphorylation and nuclear translocation. In primary cardiomyocytes, epithelial cells, and endothelial cells, we found that forced circ-Amotl1 expression increased the nuclear fraction of pAKT...
2017: Theranostics
https://www.readbyqxmd.com/read/29107544/prognostic-relevance-of-right-heart-reverse-remodeling-in-idiopathic-pulmonary-arterial-hypertension
#19
Roberto Badagliacca, Roberto Poscia, Beatrice Pezzuto, Silvia Papa, Manuela Reali, Francesca Pesce, Giovanna Manzi, Daniele Gianfrilli, Francesco Ciciarello, Susanna Sciomer, Giuseppe Biondi-Zoccai, Roberto Torre, Francesco Fedele, Carmine Dario Vizza
BACKGROUND: Right ventricular (RV) failure is a major determinant of symptoms and shortened survival in pulmonary arterial hypertension (PAH). This study assessed the prognostic relevance of increased right heart (RH) dimensions determined by echocardiography and RH reverse remodeling (RHRR) with targeted therapies in idiopathic PAH (IPAH). METHODS: The study prospectively monitored 102 therapy-naïve IPAH patients for the presence of clinical worsening. Baseline evaluation included RH catheterization and echocardiography...
October 2, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29106576/the-stromal-cell-derived-factor-1-c-x-c-chemokine-receptor-type-4-axis-is-important-in-neutrophil-migration-caused-by-cardiopulmonary-bypass-in-children
#20
Ran Tu, Yanhua Peng, Ying Wang, Xixi Tang, Shouyong Wang
OBJECTIVES: Acute lung injury caused by cardiopulmonary bypass (CPB) is characterized by massive neutrophil migration to the lungs. Neutrophil migration may be closely related to stromal cell-derived factor 1 (SDF-1)/C-X-C chemokine receptor Type 4 (CXCR4) axis activation, which plays an essential role in modulating the trafficking of neutrophils. We investigated the changes in the expression of SDF-1/CXCR4 axis components before and after CPB as well as the role of the axis in driving the migration of neutrophils in patients with congenital heart disease...
November 2, 2017: Interactive Cardiovascular and Thoracic Surgery
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