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Reversing heart disease

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https://www.readbyqxmd.com/read/29351461/exercise-training-induces-enos-coupling-and-restores-relaxation-in-coronary-arteries-of-heart-failure-rats
#1
Gisele Kruger Couto, Suliana Mesquita Paula, Igor L Gomes-Santos, Carlos Eduardo Negrão, Luciana Venturini Rossoni
Exercise training (ET) has emerged as a non-pharmacological therapy for cardiovascular diseases because of its helpful milieu for improving vascular function. The aim of the present study was to assess whether ET reverses the alterations in vascular reactivity observed in heart failure (HF)-related coronary arteries and to elucidate the molecular mechanisms involved in these adjustments. Male Wistar rats were subjected to either coronary artery ligation or sham operation (SO). Four weeks after the surgery, the rats were divided into two groups: untrained HF (UHF) and exercise-trained HF (THF)...
January 5, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29346407/relaxin-reverses-inflammatory-and-immune-signals-in-aged-hearts
#2
Brian Martin, Beth Ann Gabris-Weber, Rajiv Reddy, Guillermo Romero, Ansuman Chattopadhyay, Guy Salama
BACKGROUND: 'Healthy' aging drives structural and functional changes in the heart including maladaptive electrical remodeling, fibrosis and inflammation, which lower the threshold for cardiovascular diseases such as heart failure (HF) and atrial fibrillation (AF). Despite mixed results in recent clinical trials, Relaxin-therapy for 2-days could reduce mortality by 37% at 180-days post-treatment, in patients with acute decompensated HF. Relaxin's short life-span (hours) but long-lasting protective actions led us to test the hypothesis that relaxin acts at a genomic level to reverse maladaptive remodeling in aging and HF...
2018: PloS One
https://www.readbyqxmd.com/read/29336364/mechanism-of-chronic-stress-induced-reduced-atherosclerotic-medial-area-and-increased-plaque-instability-in-rabbit-models-of-chronic-stress
#3
Ze-Mou Yu, Xiao-Tao Deng, Ruo-Mei Qi, Lu-Yan Xiao, Chong-Qing Yang, Tao Gong
BACKGROUND: Chronic stress contributes to increased risks of atherosclerotic diseases including heart disease, stroke, and transient ischemic attack. However, its underline mechanisms are poorly understood. This study aimed to elucidate the mechanism via which chronic stress exerts its effect on atherosclerosis (AS). METHODS: Fifty male New Zealand white rabbits were used. Aortic balloon-injury model was applied. Both social stress and physical stress methods were adopted to establish chronic stress models...
January 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29335884/effects-of-moderate-exercise-on-biochemical-morphological-and-physiological-parameters-of-the-pancreas-of-female-mice-with-estrogen-deprivation-and-dyslipidemia
#4
Aparecida Gabriela Bexiga Veloso, Nathalia Edviges Alves Lima, Elisabete de Marco Ornelas, Clever Gomes Cardoso, Mara Rubia Marques, Beatriz da Costa Aguiar Alves Reis, Fernando Luiz Affonso Fonseca, Laura Beatriz Mesiano Maifrino
Menopausal women are at high risk of developing heart disease. However, physical exercise practice can reverse this scenario. We evaluated the biochemical, morphological, and physiological effects of moderate aerobic physical exercise on the pancreas of knockout mice for LDL receptor with estrogen deprivation by ovariectomy. Animals were divided into six groups (n = 5): sedentary non-ovariectomized control; sedentary ovariectomized control; trained ovariectomized control; sedentary non-ovariectomized LDL-R knockout; sedentary ovariectomized LDL-R knockout; and trained ovariectomized LDL-R knockout...
January 15, 2018: Medical Molecular Morphology
https://www.readbyqxmd.com/read/29332571/role-of-heart-rate-reduction-in-the-management-of-myocarditis
#5
Chen Guang-Yi, Ge Li-Sha, Li Yue-Chun
The morbidity of myocarditis demonstrates an upward tendency by years, is commonly defined as the inflammation of myocytes and is caused by multiple factors. With the development of the molecular biological technique, great breakthroughs in the diagnosis and understanding of pathophysiological mechanisms of myocarditis have recently been achieved. Several questions remain unresolved, however, including standard treatment approaches to myocarditis, which remain controversial and ambiguous. Heart rate, as an independent risk factor, has been shown to be related to cardiac disease...
January 10, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29329959/mir-21-suppression-prevents-cardiac-alterations-induced-by-d-galactose-and-doxorubicin
#6
Yihua Bei, Xiaoting Wu, Dragos Cretoiu, Jing Shi, Qiulian Zhou, Shenghui Lin, Hui Wang, Yan Cheng, Haifeng Zhang, Junjie Xiao, Xinli Li
d-galactose (d-gal)-induced cardiac alterations and Doxorubicin (Dox)-induced cardiomyocyte senescence are commonly used models to study cardiac aging. Accumulating evidence has suggested that microRNAs (miRNAs, miRs) are critically involved in the regulation of cellular and organismal aging and age-related diseases. However, little has been revealed about the roles of miRNAs in cardiac alterations induced by d-gal and Dox. In this study, we used miRNA arrays to investigate the dysregulated miRNAs in heart samples from 15month-old versus 2month-old male C57BL/6 mice and further validated them in d-gal-induced pseudo-aging mouse model and Dox-induced cardiomyocyte senescence in vitro model...
January 9, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29328456/p21-protects-cardiomyocytes-against-ischemia-reperfusion-injury-by-inhibiting-oxidative-stress
#7
Hong Li, Tong Zou, Shuai Meng, Yun-Zhu Peng, Jie-Fu Yang
Ischemic heart disease is a major health threat, resulting in a large number of mortalities annually worldwide. Oxidative stress is one of the main causes of cell death during ischemia‑reperfusion (IR) injury. Cyclin dependent kinase inhibitor 1A (known as p21) is important in protecting tissues against IR injury, however the mechanism remains unknown. In the present study, oxygen‑glucose deprivation and subsequent reoxygenation (OGD/R) in H9c2 heart‑derived myocytes was used as a model to study myocardial IR injury in vitro...
January 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328364/genetically%C3%A2-modified-stem-cells-in-treatment-of-human-diseases-tissue-kallikrein-klk1-%C3%A2-based-targeted-therapy-review
#8
Marina Devetzi, Maria Goulielmaki, Nicolas Khoury, Demetrios A Spandidos, Georgia Sotiropoulou, Ioannis Christodoulou, Vassilis Zoumpourlis
The tissue kallikrein‑kinin system (KKS) is an endogenous multiprotein metabolic cascade which is implicated in the homeostasis of the cardiovascular, renal and central nervous system. Human tissue kallikrein (KLK1) is a serine protease, component of the KKS that has been demonstrated to exert pleiotropic beneficial effects in protection from tissue injury through its anti‑inflammatory, anti‑apoptotic, anti‑fibrotic and anti‑oxidative actions. Mesenchymal stem cells (MSCs) or endothelial progenitor cells (EPCs) constitute populations of well‑characterized, readily obtainable multipotent cells with special immunomodulatory, migratory and paracrine properties rendering them appealing potential therapeutics in experimental animal models of various diseases...
January 3, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29327894/cell-therapy-for-heart-disease-current-status-and-future-directions
#9
Arunpreet Kahlon, Gaurang Vaidya, Roberto Bolli
Treatment of ischemic heart disease has evolved considerably over time, seeing a technological impetus in recent times. Prompt diagnosis and progressively earlier reperfusion of the infarct artery have become the cornerstone of the early myocardial ischemia management. However, treatment of post-infarction sequelae resulting from ischemic damage sustained within the myocardium remains a considerable challenge. In this setting, stem cell therapy has emerged as an exciting regenerative modality with a promise to arrest or even reverse the pathological myocardial remodeling...
January 10, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29327671/tissue-engineered-heart-valves-a-call-for-mechanistic-studies
#10
Kevin Blum, Joseph Drews, Christopher K Breuer
Heart valve disease carries a substantial risk of morbidity and mortality. Outcomes are significantly improved by valve replacement, but currently-available mechanical and biological replacement valves are associated with complications of their own. Mechanical valves have a high rate of thromboembolism and require lifelong anticoagulation. Biological prosthetic valves have a much shorter lifespan, and are prone to tearing and degradation. Both types of valves lack the capacity for growth, making them particularly problematic in pediatric patients...
January 12, 2018: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/29317337/heart-and-bile-acids-clinical-consequences-of-altered-bile-acid-metabolism
#11
REVIEW
Tharni Vasavan, Elisa Ferraro, Effendi Ibrahim, Peter Dixon, Julia Gorelik, Catherine Williamson
Cardiac dysfunction has an increased prevalence in diseases complicated by liver cirrhosis such as primary biliary cholangitis and primary sclerosing cholangitis. This observation has led to research into the association between abnormalities in bile acid metabolism and cardiac pathology. Approximately 50% of liver cirrhosis cases develop cirrhotic cardiomyopathy. Bile acids are directly implicated in this, causing QT interval prolongation, cardiac hypertrophy, cardiomyocyte apoptosis and abnormal haemodynamics of the heart...
January 6, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29312769/reversible-pulmonary-hypertension-with-unclear-etiology-associated-with-suspected-viral-infection
#12
Hong Deok Kim, Kwang Jin Chun, Seonghoon Choi, Jung Rae Cho, Namho Lee, Min-Kyung Kang
Clinical classification of pulmonary hypertension (PH) includes five groups: pulmonary arterial hypertension (PAH), PH due to left heart disease, PH due to lung diseases and/or hypoxemia, chronic thromboembolic PH, and PH with unclear and/or multifactorial mechanism. PH is categorized according to clinical presentation, pathological findings, hemodynamic significances and treatment strategy. The authors report a case of reversible PH with unknown etiology in association with suspected acute viral illness.
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29303069/unfolding-cardiac-amyloidosis-from-pathophysiology-to-cure
#13
Klemens Ablasser, Nicolas Verheyen, Theresa Glantschnig, Giulio Agnetti, Peter P Rainer
Deposition of amyloidogenic proteins leading to the formation of amyloid fibrils in the myocardium cause cardiac amyloidosis. Although any form of systemic amyloidosis can affect the heart, light-chain (AL) or transthyretin amyloidosis (ATTR) account for the majority of diagnosed cardiac amyloid deposition. The extent of cardiac disease independently predicts mortality. The reversal or arrest of adverse cardiac remodeling is the target of current therapies, as cardiac-related mortality worsens prognosis in patients where the underlying systemic amyloidosis was successfully treated...
January 4, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29295868/the-immunoproteasome-specific-inhibitor-onx-0914-reverses-susceptibility-to-acute-viral-myocarditis
#14
Nadine Althof, Carl Christoph Goetzke, Meike Kespohl, Karolin Voss, Arnd Heuser, Sandra Pinkert, Ziya Kaya, Karin Klingel, Antje Beling
Severe heart pathology upon virus infection is closely associated with the immunological equipment of the host. Since there is no specific treatment available, current research focuses on identifying new drug targets to positively modulate predisposing immune factors. Utilizing a murine model with high susceptibility to coxsackievirus B3-induced myocarditis, this study describes ONX 0914-an immunoproteasome-specific inhibitor-as highly protective during severe heart disease. Represented by reduced heart infiltration of monocytes/macrophages and diminished organ damage, ONX 0914 treatment reversed fulminant pathology...
January 2, 2018: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29290032/foxm1-promotes-pulmonary-artery-smooth-muscle-cell-expansion-in-pulmonary-arterial-hypertension
#15
Alice Bourgeois, Caroline Lambert, Karima Habbout, Benoit Ranchoux, Stéphanie Paquet-Marceau, Isabelle Trinh, Sandra Breuils-Bonnet, Renée Paradis, Valérie Nadeau, Roxane Paulin, Steeve Provencher, Sébastien Bonnet, Olivier Boucherat
Pulmonary arterial hypertension (PAH) is a progressive vascular remodeling disease characterized by a persistent elevation of pulmonary artery pressure, leading to right heart failure and premature death. Exaggerated proliferation and resistance to apoptosis of pulmonary artery smooth muscle cells (PASMCs) is a key component of vascular remodeling. Despite major advances in the field, current therapies for PAH remain poorly effective in reversing the disease or significantly improving long-term survival. Because the transcription factor FOXM1 is necessary for PASMC proliferation during lung morphogenesis and its overexpression stimulates proliferation and evasion of apoptosis in cancer cells, we thus hypothesized that upregulation of FOXM1 in PAH-PASMCs promotes cell expansion and vascular remodeling...
December 30, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29288528/overexpression-of-mir-22-attenuates-oxidative-stress-injury-in-diabetic-cardiomyopathy-via-sirt-1
#16
Qinghui Tang, Qiang Len, Zheng Liu, W D Wang
BACKGROUND/AIMS: Oxidative stress injury is believed to be important in diabetic cardiomyopathy. Recent evidence indicates that miR-22 plays an important role in various cardiovascular diseases, but the protective role of miR-22 in diabetic cardiomyopathy remains undetermined. METHODS: Diabetes was induced in male C57BL/6 mice by intraperitoneal injection with streptozotocin combined with a high-fat diet and miR-22 was overexpressed following transfection with adeno-associated virus...
December 29, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/29287600/pulmonary-arterial-hypertension-in-a-patient-treated-with-dasatinib-a-case-report
#17
Andris Skride, Matiss Sablinskis, Kristaps Sablinskis, Krista Lesina, Aivars Lejnieks, Sandra Lejniece
BACKGROUND: There have been several reports on dasatinib-induced reversible pulmonary hypertension. This is the first reported case in Latvia; the patient did not discontinue the drug after the first adverse effects in the form of pleural effusions, which we speculate led only to partial reversion of the disease. CASE PRESENTATION: A 67-year-old white man with chronic myelogenous leukemia was treated with the dual Src and BCR-ABL tyrosine kinase inhibitor dasatinib...
December 29, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29286111/mir-31a-5p-protects-myocardial-cells-against-apoptosis-by-targeting-tp53
#18
Meng-Jie Yan, Zhi-Sen Tian, Zhi-Hui Zhao, Ping Yang
The pathogenesis and progression of heart failure (HF) involves multiple mechanisms, including the increased activity of the renin-angiotensin-aldosterone system, apoptosis and differential expression of microRNAs (miRNAs/miRs). Our previous study revealed an increase in miR‑31a‑5p levels in the failing hearts of a rat HF model. In the present study, whether and how miR‑31a‑5p mediates angiotensin II (AngII)‑induced apoptosis in the cardiac H9C2 cell line, was investigated using molecular biological approaches, including reverse transcription followed by quantitative polymerase chain reaction, western blotting, RNA arrays, and mutagenesis...
December 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29286102/pin1-facilitates-isoproterenol%C3%A2-induced-cardiac-fibrosis-and-collagen-deposition-by-promoting-oxidative-stress-and-activating-the-mek1-2%C3%A2-erk1-2-signal-transduction-pathway-in-rats
#19
Xian Wu, Mingjiang Li, Su-Qin Chen, Sha Li, Furong Guo
Peptidyl‑prolyl cis/trans isomerase, NIMA-interacting 1 (Pin1) is a member of a large superfamily of phosphorylation‑dependent peptidyl‑prolyl cis/trans isomerases, which not only regulates multiple targets at various stages of cellular processes, but is also involved in the pathogenesis of several diseases, including microbial infection, cancer, asthma and Alzheimer's disease. However, the role of Pin1 in cardiac fibrosis remains to be fully elucidated. The present study investigated the potential mechanism of Pin1 in isoprenaline (ISO)‑induced myocardial fibrosis in rats...
December 29, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29286090/therapeutic-inhibition-of-galectin%C3%A2-3-improves-cardiomyocyte-apoptosis-and-survival-during-heart-failure
#20
Xia Li, Xuan Tang, Jinping Lu, Sheng Yuan
Galectin-3 is an important mediator of cardiac fibrosis and heart failure. Cell viability of cardiomyocytes was measured using a CCK‑8 assay; flow cytometry was employed for the detection of the cell cycle and cardiomyocytes apoptosis. Reverse transcription‑quantitative polymerase chain reaction and western blotting was performed to examine the expression of associated genes and proteins. The present study demonstrated that overexpression of galectin‑3 significantly decreased the viability of cardiomyocytes in a time‑dependent manner, with simultaneous arrest of the cell cycle and induction of apoptosis...
December 20, 2017: Molecular Medicine Reports
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